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authorUlrich Drepper <drepper@redhat.com>2004-04-13 02:15:43 +0000
committerUlrich Drepper <drepper@redhat.com>2004-04-13 02:15:43 +0000
commit1b82c6c77d566ce3977c83b7ca47f09aac31e525 (patch)
tree27c7a0846d386151845a01a553d0dcfb16691bfb
parent381a0c26d73e0f074c962e0ab53b99a6c327066d (diff)
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Update.
2004-04-08 Ulrich Drepper <drepper@redhat.com> * rt/tst-mqueue3.c: New file. * rt/Makefile (tests): Add tst-mqueue3. 2004-04-08 Jakub Jelinek <jakub@redhat.com> * rt/tst-mqueue1.c: New file. * rt/tst-mqueue2.c: New file. * rt/tst-mqueue4.c: New file. * rt/Makefile (tests): Add tst-mqueue1, tst-mqueue2, tst-mqueue4. * rt/Versions (librt): Add mq_*@@GLIBC_2.3.4. * rt/Makefile (headers): Add mqueue.h and bits/mqueue.h. (mq-routines): Set. (librt-routines): Use it. * rt/mqueue.h: New file. * include/mqueue.h: New file. * sysdeps/generic/bits/mqueue.h: New file. * sysdeps/generic/mq_setattr.c: New file. * sysdeps/generic/mq_getattr.c: New file. * sysdeps/generic/mq_notify.c: New file. * sysdeps/generic/mq_close.c: New file. * sysdeps/generic/mq_send.c: New file. * sysdeps/generic/mq_unlink.c: New file. * sysdeps/generic/mq_receive.c: New file. * sysdeps/generic/mq_timedreceive.c: New file. * sysdeps/generic/mq_timedsend.c: New file. * sysdeps/generic/mq_open.c: New file. * sysdeps/unix/sysv/linux/bits/local_lim.h (MQ_PRIO_MAX): Define. * sysdeps/unix/sysv/linux/bits/mqueue.h: New file. * sysdeps/unix/sysv/linux/syscalls.list: Add mq_timedsend, mq_timedreceive and mq_setattr. * sysdeps/unix/sysv/linux/mq_getattr.c: New file. * sysdeps/unix/sysv/linux/mq_notify.c: New file. * sysdeps/unix/sysv/linux/mq_close.c: New file. * sysdeps/unix/sysv/linux/mq_send.c: New file. * sysdeps/unix/sysv/linux/mq_unlink.c: New file. * sysdeps/unix/sysv/linux/mq_receive.c: New file. * sysdeps/unix/sysv/linux/mq_open.c: New file. 2004-04-09 Thorsten Kukuk <kukuk@suse.de> * sysdeps/s390/ffs.c: Don't add ffsl weak alias on s390x. 2004-04-09 Steven Munroe <sjmunroe@us.ibm.com> * sysdeps/unix/sysv/linux/powerpc/powerpc64/umount.c: New file.
-rw-r--r--ChangeLog57
-rw-r--r--bits/mqueue.h31
-rw-r--r--include/mqueue.h7
-rw-r--r--linuxthreads/ChangeLog11
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h3
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h3
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h6
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h6
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h3
-rw-r--r--linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h3
-rw-r--r--nptl/ChangeLog19
-rw-r--r--nptl/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/bits/local_lim.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/bits/posix_opt.h6
-rw-r--r--nptl/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h6
-rw-r--r--nptl/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h6
-rw-r--r--nptl/sysdeps/unix/sysv/linux/mq_notify.c285
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h3
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h6
-rw-r--r--rt/Makefile13
-rw-r--r--rt/Versions5
-rw-r--r--rt/mqueue.h91
-rw-r--r--rt/tst-mqueue.h62
-rw-r--r--rt/tst-mqueue1.c416
-rw-r--r--rt/tst-mqueue2.c477
-rw-r--r--rt/tst-mqueue3.c238
-rw-r--r--rt/tst-mqueue4.c276
-rw-r--r--sysdeps/generic/bits/mqueue.h31
-rw-r--r--sysdeps/generic/mq_close.c31
-rw-r--r--sysdeps/generic/mq_getattr.c30
-rw-r--r--sysdeps/generic/mq_notify.c31
-rw-r--r--sysdeps/generic/mq_open.c36
-rw-r--r--sysdeps/generic/mq_receive.c32
-rw-r--r--sysdeps/generic/mq_send.c31
-rw-r--r--sysdeps/generic/mq_setattr.c33
-rw-r--r--sysdeps/generic/mq_timedreceive.c34
-rw-r--r--sysdeps/generic/mq_timedsend.c33
-rw-r--r--sysdeps/generic/mq_unlink.c30
-rw-r--r--sysdeps/unix/sysv/linux/bits/local_lim.h3
-rw-r--r--sysdeps/unix/sysv/linux/bits/mqueue.h32
-rw-r--r--sysdeps/unix/sysv/linux/mq_close.c35
-rw-r--r--sysdeps/unix/sysv/linux/mq_getattr.c34
-rw-r--r--sysdeps/unix/sysv/linux/mq_notify.c43
-rw-r--r--sysdeps/unix/sysv/linux/mq_open.c59
-rw-r--r--sysdeps/unix/sysv/linux/mq_receive.c36
-rw-r--r--sysdeps/unix/sysv/linux/mq_send.c35
-rw-r--r--sysdeps/unix/sysv/linux/mq_unlink.c39
-rw-r--r--sysdeps/unix/sysv/linux/syscalls.list4
49 files changed, 2690 insertions, 30 deletions
diff --git a/ChangeLog b/ChangeLog
index dfaa11f..1156766 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,44 @@
+2004-04-08 Ulrich Drepper <drepper@redhat.com>
+
+ * rt/tst-mqueue3.c: New file.
+ * rt/Makefile (tests): Add tst-mqueue3.
+
+2004-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ * rt/tst-mqueue1.c: New file.
+ * rt/tst-mqueue2.c: New file.
+ * rt/tst-mqueue4.c: New file.
+ * rt/Makefile (tests): Add tst-mqueue1, tst-mqueue2, tst-mqueue4.
+
+ * rt/Versions (librt): Add mq_*@@GLIBC_2.3.4.
+ * rt/Makefile (headers): Add mqueue.h and bits/mqueue.h.
+ (mq-routines): Set.
+ (librt-routines): Use it.
+ * rt/mqueue.h: New file.
+ * include/mqueue.h: New file.
+ * sysdeps/generic/bits/mqueue.h: New file.
+ * sysdeps/generic/mq_setattr.c: New file.
+ * sysdeps/generic/mq_getattr.c: New file.
+ * sysdeps/generic/mq_notify.c: New file.
+ * sysdeps/generic/mq_close.c: New file.
+ * sysdeps/generic/mq_send.c: New file.
+ * sysdeps/generic/mq_unlink.c: New file.
+ * sysdeps/generic/mq_receive.c: New file.
+ * sysdeps/generic/mq_timedreceive.c: New file.
+ * sysdeps/generic/mq_timedsend.c: New file.
+ * sysdeps/generic/mq_open.c: New file.
+ * sysdeps/unix/sysv/linux/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/bits/mqueue.h: New file.
+ * sysdeps/unix/sysv/linux/syscalls.list: Add mq_timedsend,
+ mq_timedreceive and mq_setattr.
+ * sysdeps/unix/sysv/linux/mq_getattr.c: New file.
+ * sysdeps/unix/sysv/linux/mq_notify.c: New file.
+ * sysdeps/unix/sysv/linux/mq_close.c: New file.
+ * sysdeps/unix/sysv/linux/mq_send.c: New file.
+ * sysdeps/unix/sysv/linux/mq_unlink.c: New file.
+ * sysdeps/unix/sysv/linux/mq_receive.c: New file.
+ * sysdeps/unix/sysv/linux/mq_open.c: New file.
+
2004-04-09 Andreas Schwab <schwab@suse.de>
* sysdeps/unix/sysv/linux/ia64/sysdep.h (DO_INLINE_SYSCALL): Move
@@ -18,14 +59,6 @@
(LOAD_REGS_5, LOAD_REGS_6): New macros to actually load the
syscall argument registers.
-2004-04-09 Thorsten Kukuk <kukuk@suse.de>
-
- * sysdeps/s390/ffs.c: Don't add ffsl weak alias on s390x.
-
-2004-04-09 Steven Munroe <sjmunroe@us.ibm.com>
-
- * sysdeps/unix/sysv/linux/powerpc/powerpc64/umount.c: New file.
-
2004-04-09 Andreas Schwab <schwab@suse.de>
* sysdeps/unix/sysv/linux/m68k/sysdep.h (INTERNAL_SYSCALL): Add
@@ -37,6 +70,14 @@
(LOAD_REGS_5, LOAD_REGS_6): New macros to actually load the
syscall argument registers.
+2004-04-09 Thorsten Kukuk <kukuk@suse.de>
+
+ * sysdeps/s390/ffs.c: Don't add ffsl weak alias on s390x.
+
+2004-04-09 Steven Munroe <sjmunroe@us.ibm.com>
+
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/umount.c: New file.
+
2004-04-08 Ulrich Drepper <drepper@redhat.com>
* po/nl.po: Update from translation team.
diff --git a/bits/mqueue.h b/bits/mqueue.h
new file mode 100644
index 0000000..27bb482
--- /dev/null
+++ b/bits/mqueue.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MQUEUE_H
+# error "Never use <bits/mqueue.h> directly; include <mqueue.h> instead."
+#endif
+
+typedef int mqd_t;
+
+struct mq_attr
+{
+ long int mq_flags; /* Message queue flags. */
+ long int mq_maxmsg; /* Maximum number of messages. */
+ long int mq_msgsize; /* Maximum message size. */
+ long int mq_curmsgs; /* Number of messages currently queued. */
+};
diff --git a/include/mqueue.h b/include/mqueue.h
new file mode 100644
index 0000000..1ac4f13
--- /dev/null
+++ b/include/mqueue.h
@@ -0,0 +1,7 @@
+#include <rt/mqueue.h>
+
+#ifdef IS_IN_librt
+hidden_proto (mq_timedsend)
+hidden_proto (mq_timedreceive)
+hidden_proto (mq_setattr)
+#endif
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index cbdfc73..ad881d4 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,14 @@
+2004-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/alpha/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/ia64/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/sparc/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_MESSAGE_PASSING):
+ Define.
+ * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
+ (_POSIX_MESSAGE_PASSING): Define.
+
2004-04-10 Andreas Jaeger <aj@suse.de>
* sysdeps/x86_64/pt-machine.h: Add used attribute to stack_pointer
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h
index e08763b..96893c5 100644
--- a/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h
+++ b/linuxthreads/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h
@@ -87,3 +87,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h
index 4027c4d..ed6c3c5 100644
--- a/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h
+++ b/linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h
@@ -87,3 +87,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h
index 3dae916..06fd0a2 100644
--- a/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h
+++ b/linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h
@@ -1,5 +1,5 @@
/* Define POSIX options for Linux.
- Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -129,8 +129,8 @@
/* The barrier functions are available. */
#define _POSIX_BARRIERS 200112L
-/* POSIX message queues are not yet supported. */
-#undef _POSIX_MESSAGE_PASSING
+/* POSIX message queues are available. */
+#define _POSIX_MESSAGE_PASSING 200112L
/* The monotonic clock might be available. */
#define _POSIX_MONOTONIC_CLOCK 0
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h b/linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
index 02da4d7..18a840e 100644
--- a/linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
+++ b/linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
@@ -1,5 +1,5 @@
/* Define POSIX options for Linux/ix86.
- Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -135,8 +135,8 @@
/* The barrier functions are available. */
#define _POSIX_BARRIERS 200112L
-/* POSIX message queues are not yet supported. */
-#undef _POSIX_MESSAGE_PASSING
+/* POSIX message queues are available. */
+#define _POSIX_MESSAGE_PASSING 200112L
/* The monotonic clock might be available. */
#define _POSIX_MONOTONIC_CLOCK 0
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h
index 73fa616..629b1f8 100644
--- a/linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h
+++ b/linuxthreads/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h
@@ -87,3 +87,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h b/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h
index 6021294..27ffa66 100644
--- a/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h
+++ b/linuxthreads/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h
@@ -87,3 +87,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index c197dd4..53fba00 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,22 @@
+2004-04-12 Ulrich Drepper <drepper@redhat.com>
+
+ * sysdeps/unix/sysv/linux/mq-notify.c: New file.
+
+2004-04-08 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/alpha/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/ia64/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/sparc/bits/local_lim.h (MQ_PRIO_MAX): Define.
+ * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_MESSAGE_PASSING):
+ Define.
+ * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
+ (_POSIX_MESSAGE_PASSING): Define.
+ * sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h
+ (_POSIX_MESSAGE_PASSING): Define.
+ * sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h
+ (_POSIX_MESSAGE_PASSING): Define.
+
2004-04-04 Ulrich Drepper <drepper@redhat.com>
* tst-context1.c (fct): Check whether correct stack is used.
diff --git a/nptl/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h b/nptl/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h
index bb3c4c0..e071878 100644
--- a/nptl/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h
+++ b/nptl/sysdeps/unix/sysv/linux/alpha/bits/local_lim.h
@@ -84,3 +84,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h b/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h
index 0c2a2bd..0bc8e04 100644
--- a/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h
+++ b/nptl/sysdeps/unix/sysv/linux/bits/local_lim.h
@@ -84,3 +84,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/nptl/sysdeps/unix/sysv/linux/bits/posix_opt.h b/nptl/sysdeps/unix/sysv/linux/bits/posix_opt.h
index 67a37d0..7335e38 100644
--- a/nptl/sysdeps/unix/sysv/linux/bits/posix_opt.h
+++ b/nptl/sysdeps/unix/sysv/linux/bits/posix_opt.h
@@ -1,5 +1,5 @@
/* Define POSIX options for Linux.
- Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -126,8 +126,8 @@
/* The barrier functions are available. */
#define _POSIX_BARRIERS 200112L
-/* POSIX message queues are not yet supported. */
-#undef _POSIX_MESSAGE_PASSING
+/* POSIX message queues are available. */
+#define _POSIX_MESSAGE_PASSING 200112L
/* Thread process-shared synchronization is supported. */
#define _POSIX_THREAD_PROCESS_SHARED 200112L
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h b/nptl/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
index 4bc4eed..7563de8 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
+++ b/nptl/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h
@@ -1,5 +1,5 @@
/* Define POSIX options for Linux.
- Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -132,8 +132,8 @@
/* The barrier functions are available. */
#define _POSIX_BARRIERS 200112L
-/* POSIX message queues are not yet supported. */
-#undef _POSIX_MESSAGE_PASSING
+/* POSIX message queues are available. */
+#define _POSIX_MESSAGE_PASSING 200112L
/* Thread process-shared synchronization is supported. */
#define _POSIX_THREAD_PROCESS_SHARED 200112L
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h b/nptl/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h
index 5d64136..f837250 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/bits/local_lim.h
@@ -84,3 +84,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/nptl/sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h b/nptl/sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h
index 4bc4eed..7563de8 100644
--- a/nptl/sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h
+++ b/nptl/sysdeps/unix/sysv/linux/ia64/bits/posix_opt.h
@@ -1,5 +1,5 @@
/* Define POSIX options for Linux.
- Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -132,8 +132,8 @@
/* The barrier functions are available. */
#define _POSIX_BARRIERS 200112L
-/* POSIX message queues are not yet supported. */
-#undef _POSIX_MESSAGE_PASSING
+/* POSIX message queues are available. */
+#define _POSIX_MESSAGE_PASSING 200112L
/* Thread process-shared synchronization is supported. */
#define _POSIX_THREAD_PROCESS_SHARED 200112L
diff --git a/nptl/sysdeps/unix/sysv/linux/mq_notify.c b/nptl/sysdeps/unix/sysv/linux/mq_notify.c
new file mode 100644
index 0000000..e231e59
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/mq_notify.c
@@ -0,0 +1,285 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contribute by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <pthread.h>
+#include <signal.h>
+#include <string.h>
+#include <sysdep.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <not-cancel.h>
+
+
+#ifdef __NR_mq_notify
+
+/* Defined in the kernel headers: */
+#define NOTIFY_COOKIE_LEN 32 /* Length of the cookie used. */
+#define NOTIFY_WOKENUP 1 /* Code for notifcation. */
+#define NOTIFY_REMOVED 2 /* Code for closed message queue
+ of de-notifcation. */
+
+
+/* Data structure for the queued notification requests. */
+union notify_data
+{
+ struct
+ {
+ void (*fct) (union sigval); /* The function to run. */
+ union sigval param; /* The parameter to pass. */
+ pthread_attr_t *attr; /* Attributes to create the thread with. */
+ /* NB: on 64-bit machines the struct as a size of 24 bytes. Which means
+ byte 31 can still be used for returning the status. */
+ };
+ char raw[NOTIFY_COOKIE_LEN];
+};
+
+
+/* Keep track of the initialization. */
+static pthread_once_t once = PTHREAD_ONCE_INIT;
+
+
+/* The netlink socket. */
+static int netlink_socket = -1;
+
+
+/* Barrier used to make sure data passed to the new thread is not
+ resused by the parent. */
+static pthread_barrier_t notify_barrier;
+
+
+/* Modify the signal mask. We move this into a separate function so
+ that the stack space needed for sigset_t is not deducted from what
+ the thread can use. */
+static int
+__attribute__ ((noinline))
+change_sigmask (int how, sigset_t *oss)
+{
+ sigset_t ss;
+ sigfillset (&ss);
+ return pthread_sigmask (how, &ss, oss);
+}
+
+
+/* The function used for the notification. */
+static void *
+notification_function (void *arg)
+{
+ /* Copy the function and parameter so that the parent thread can go
+ on with its life. */
+ volatile union notify_data *data = (volatile union notify_data *) arg;
+ void (*fct) (union sigval) = data->fct;
+ union sigval param = data->param;
+
+ /* Let the parent go. */
+ (void) pthread_barrier_wait (&notify_barrier);
+
+ /* Make the thread detached. */
+ (void) pthread_detach (pthread_self ());
+
+ /* The parent thread has all signals blocked. This is probably a
+ bit surprising for this thread. So we unblock all of them. */
+ (void) change_sigmask (SIG_UNBLOCK, NULL);
+
+ /* Now run the user code. */
+ fct (param);
+
+ /* And we are done. */
+ return NULL;
+}
+
+
+/* Helper thread. */
+static void *
+helper_thread (void *arg)
+{
+ while (1)
+ {
+ union notify_data data;
+
+ ssize_t n = recv (netlink_socket, &data, sizeof (data),
+ MSG_NOSIGNAL | MSG_WAITALL);
+ if (n < NOTIFY_COOKIE_LEN)
+ continue;
+
+ if (data.raw[NOTIFY_COOKIE_LEN - 1] == NOTIFY_WOKENUP)
+ {
+ /* Just create the thread as instructed. There is no way to
+ report a problem with creating a thread. */
+ pthread_t th;
+ if (__builtin_expect (pthread_create (&th, data.attr,
+ notification_function, &data)
+ == 0, 0))
+ /* Since we passed a pointer to DATA to the new thread we have
+ to wait until it is done with it. */
+ (void) pthread_barrier_wait (&notify_barrier);
+ }
+ else if (data.raw[NOTIFY_COOKIE_LEN - 1] == NOTIFY_REMOVED)
+ /* The only state we keep is the copy of the thread attributes. */
+ free (data.attr);
+ }
+}
+
+
+static void
+reset_once (void)
+{
+ once = PTHREAD_ONCE_INIT;
+}
+
+
+static void
+init_mq_netlink (void)
+{
+ /* This code might be called a second time after fork(). The file
+ descriptor is inherited from the parent. */
+ if (netlink_socket == -1)
+ {
+ /* Just a normal netlink socket, not bound. */
+ netlink_socket = socket (AF_NETLINK, SOCK_RAW, 0);
+ /* No need to do more if we have no socket. */
+ if (netlink_socket == -1)
+ return;
+
+ /* Make sure the descriptor is closed on exec. */
+ if (fcntl (netlink_socket, F_SETFD, FD_CLOEXEC) != 0)
+ goto errout;
+ }
+
+ int err = 1;
+
+ /* Initialize the barrier. */
+ if (__builtin_expect (pthread_barrier_init (&notify_barrier, NULL, 2) == 0,
+ 0))
+ {
+ /* Create the helper thread. */
+ pthread_attr_t attr;
+ (void) pthread_attr_init (&attr);
+ (void) pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
+ /* We do not need much stack space, the bare minimum will be enough. */
+ (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
+
+ /* Temporarily block all signals so that the newly created
+ thread inherits the mask. */
+ sigset_t oss;
+ int have_no_oss = change_sigmask (SIG_BLOCK, &oss);
+
+ pthread_t th;
+ err = pthread_create (&th, &attr, helper_thread, NULL);
+
+ /* Reset the signal mask. */
+ if (!have_no_oss)
+ pthread_sigmask (SIG_SETMASK, &oss, NULL);
+
+ (void) pthread_attr_destroy (&attr);
+
+ if (err == 0)
+ {
+ static int added_atfork;
+
+ if (added_atfork == 0
+ && pthread_atfork (NULL, NULL, reset_once) != 0)
+ {
+ /* The child thread will call recv() which is a
+ cancellation point. */
+ (void) pthread_cancel (th);
+ err = 1;
+ }
+ else
+ added_atfork = 1;
+ }
+ }
+
+ if (err != 0)
+ {
+ errout:
+ close_not_cancel_no_status (netlink_socket);
+ netlink_socket = -1;
+ }
+}
+
+
+/* Register notification upon message arrival to an empty message queue
+ MQDES. */
+int
+mq_notify (mqd_t mqdes, const struct sigevent *notification)
+{
+ /* Make sure the type is correctly defined. */
+ assert (sizeof (union notify_data) == NOTIFY_COOKIE_LEN);
+
+ /* Special treatment needed for SIGEV_THREAD. */
+ if (notification == NULL || notification->sigev_notify != SIGEV_THREAD)
+ return INLINE_SYSCALL (mq_notify, 2, mqdes, notification);
+
+ /* The kernel cannot directly start threads. This will have to be
+ done at userlevel. Since we cannot start threads from signal
+ handlers we have to create a dedicated thread which waits for
+ notifications for arriving messages and creates threads in
+ response. */
+
+ /* Initialize only once. */
+ pthread_once (&once, init_mq_netlink);
+
+ /* If we cannot create the netlink socket we cannot provide
+ SIGEV_THREAD support. */
+ if (__builtin_expect (netlink_socket == -1, 0))
+ {
+ __set_errno (ENOSYS);
+ return -1;
+ }
+
+ /* Create the cookie. It will hold almost all the state. */
+ union notify_data data;
+ memset (&data, '\0', sizeof (data));
+ data.fct = notification->sigev_notify_function;
+ data.param = notification->sigev_value;
+
+ if (notification->sigev_notify_attributes != NULL)
+ {
+ /* The thread attribute has to be allocated separately. */
+ data.attr = (pthread_attr_t *) malloc (sizeof (pthread_attr_t));
+ if (data.attr == NULL)
+ return -1;
+
+ memcpy (data.attr, notification->sigev_notify_attributes,
+ sizeof (pthread_attr_t));
+ }
+
+ /* Construct the new request. */
+ struct sigevent se;
+ se.sigev_notify = SIGEV_THREAD;
+ se.sigev_signo = netlink_socket;
+ se.sigev_value.sival_ptr = &data;
+
+ /* Tell the kernel. */
+ int retval = INLINE_SYSCALL (mq_notify, 2, mqdes, &se);
+
+ /* If it failed, free the allocated memory. */
+ if (__builtin_expect (retval != 0, 0))
+ free (data.attr);
+
+ return retval;
+}
+
+#else
+# include <sysdeps/generic/mq_notify.c>
+#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h b/nptl/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h
index 1cfa807..e082ea8 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/bits/local_lim.h
@@ -84,3 +84,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h b/nptl/sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h
index 4bc4eed..7563de8 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/bits/posix_opt.h
@@ -1,5 +1,5 @@
/* Define POSIX options for Linux.
- Copyright (C) 1996-2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1996-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -132,8 +132,8 @@
/* The barrier functions are available. */
#define _POSIX_BARRIERS 200112L
-/* POSIX message queues are not yet supported. */
-#undef _POSIX_MESSAGE_PASSING
+/* POSIX message queues are available. */
+#define _POSIX_MESSAGE_PASSING 200112L
/* Thread process-shared synchronization is supported. */
#define _POSIX_THREAD_PROCESS_SHARED 200112L
diff --git a/rt/Makefile b/rt/Makefile
index 4716789..fd51852 100644
--- a/rt/Makefile
+++ b/rt/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1997-2001, 2002, 2003 Free Software Foundation, Inc.
+# Copyright (C) 1997-2001, 2002, 2003, 2004 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -21,7 +21,7 @@
#
subdir := rt
-headers := aio.h
+headers := aio.h mqueue.h bits/mqueue.h
aio-routines := aio_cancel aio_error aio_fsync aio_misc aio_read \
aio_read64 aio_return aio_suspend aio_write \
@@ -33,14 +33,17 @@ clock-routines := get_clockfreq clock_getcpuclockid \
timer-routines := timer_create timer_delete timer_getoverr \
timer_gettime timer_settime
shm-routines := shm_open shm_unlink
+mq-routines := mq_open mq_close mq_unlink mq_getattr mq_setattr \
+ mq_notify mq_send mq_receive mq_timedsend \
+ mq_timedreceive
librt-routines = $(aio-routines) \
$(clock-routines) $(timer-routines) \
- $(shm-routines)
+ $(shm-routines) $(mq-routines)
tests := tst-shm tst-clock tst-clock_nanosleep tst-timer tst-timer2 \
tst-aio tst-aio64 tst-aio2 tst-aio3 tst-aio4 tst-aio5 tst-aio6 \
- tst-aio7
+ tst-aio7 tst-mqueue1 tst-mqueue2 tst-mqueue3 tst-mqueue4
extra-libs := librt
extra-libs-others := $(extra-libs)
@@ -53,6 +56,8 @@ CFLAGS-aio_suspend.c = -fexceptions
CFLAGS-clock_nanosleep.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-librt-cancellation.c = -fasynchronous-unwind-tables
+LDFLAGS-rt.so = -Wl,--enable-new-dtags,-z,nodelete
+
# Depend on libc.so so a DT_NEEDED is generated in the shared objects.
# This ensures they will load libc.so for needed symbols if loaded by
# a statically-linked program that hasn't already loaded it.
diff --git a/rt/Versions b/rt/Versions
index 133f374..a7d633d 100644
--- a/rt/Versions
+++ b/rt/Versions
@@ -17,4 +17,9 @@ librt {
timer_create; timer_delete; timer_getoverrun; timer_gettime;
timer_settime;
}
+ GLIBC_2.3.4 {
+ # m*
+ mq_open; mq_close; mq_unlink; mq_getattr; mq_setattr;
+ mq_notify; mq_send; mq_receive; mq_timedsend; mq_timedreceive;
+ }
}
diff --git a/rt/mqueue.h b/rt/mqueue.h
new file mode 100644
index 0000000..42313b1
--- /dev/null
+++ b/rt/mqueue.h
@@ -0,0 +1,91 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MQUEUE_H
+#define _MQUEUE_H 1
+
+#include <features.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#define __need_sigevent_t
+#include <bits/siginfo.h>
+#define __need_timespec
+#include <time.h>
+/* Get the definition of mqd_t and struct mq_attr. */
+#include <bits/mqueue.h>
+
+__BEGIN_DECLS
+
+/* Establish connection between a process and a message queue NAME and
+ return message queue descriptor or (mqd_t) -1 on error. OFLAG determines
+ the type of access used. If O_CREAT is on OFLAG, the third argument is
+ taken as a `mode_t', the mode of the created message queue, and the fourth
+ argument is taken as `struct mq_attr *', pointer to message queue
+ attributes. If the fourth argument is NULL, default attributes are
+ used. */
+extern mqd_t mq_open (const char *__name, int __oflag, ...) __THROW;
+
+/* Removes the association between message queue descriptor MQDES and its
+ message queue. */
+extern int mq_close (mqd_t __mqdes) __THROW;
+
+/* Query status and attributes of message queue MQDES. */
+extern int mq_getattr (mqd_t __mqdes, struct mq_attr *__mqstat) __THROW;
+
+/* Set attributes associated with message queue MQDES and if OMQSTAT is
+ not NULL also query its old attributes. */
+extern int mq_setattr (mqd_t __mqdes,
+ const struct mq_attr *__restrict __mqstat,
+ struct mq_attr *__restrict __omqstat) __THROW;
+
+/* Remove message queue named NAME. */
+extern int mq_unlink (const char *__name) __THROW;
+
+/* Register notification upon message arrival to an empty message queue
+ MQDES. */
+extern int mq_notify (mqd_t __mqdes, const struct sigevent *__notification)
+ __THROW;
+
+/* Receive the oldest from highest priority messages in message queue
+ MQDES. */
+extern ssize_t mq_receive (mqd_t __mqdes, char *__msg_ptr, size_t __msg_len,
+ unsigned int *__msg_prio);
+
+/* Add message pointed by MSG_PTR to message queue MQDES. */
+extern int mq_send (mqd_t __mqdes, const char *__msg_ptr, size_t __msg_len,
+ unsigned int __msg_prio);
+
+#ifdef __USE_XOPEN2K
+/* Receive the oldest from highest priority messages in message queue
+ MQDES, stop waiting if ABS_TIMEOUT expires. */
+extern ssize_t mq_timedreceive (mqd_t __mqdes, char *__restrict __msg_ptr,
+ size_t __msg_len,
+ unsigned int *__restrict __msg_prio,
+ const struct timespec *__restrict __abs_timeout);
+
+/* Add message pointed by MSG_PTR to message queue MQDES, stop blocking
+ on full message queue if ABS_TIMEOUT expires. */
+extern int mq_timedsend (mqd_t __mqdes, const char *__msg_ptr,
+ size_t __msg_len, unsigned int __msg_prio,
+ const struct timespec *__abs_timeout);
+#endif
+
+__END_DECLS
+
+#endif /* mqueue.h */
diff --git a/rt/tst-mqueue.h b/rt/tst-mqueue.h
new file mode 100644
index 0000000..3659795
--- /dev/null
+++ b/rt/tst-mqueue.h
@@ -0,0 +1,62 @@
+/* Common code for message queue passing tests.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <mqueue.h>
+#include <search.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* List of temporary files. */
+struct temp_mq_list
+{
+ struct qelem q;
+ char name[1];
+} *temp_mq_list;
+
+/* Add temporary files in list. */
+static void
+__attribute__ ((unused))
+add_temp_mq (const char *name)
+{
+ size_t len = strlen (name);
+ struct temp_mq_list *newp
+ = (struct temp_mq_list *) calloc (sizeof (*newp) + len, 1);
+ if (newp != NULL)
+ {
+ memcpy (newp->name, name, len + 1);
+ if (temp_mq_list == NULL)
+ temp_mq_list = (struct temp_mq_list *) &newp->q;
+ else
+ insque (newp, temp_mq_list);
+ }
+}
+
+/* Delete all temporary files. */
+static void
+delete_temp_mqs (void)
+{
+ while (temp_mq_list != NULL)
+ {
+ mq_unlink (temp_mq_list->name);
+ temp_mq_list = (struct temp_mq_list *) temp_mq_list->q.q_forw;
+ }
+}
+
+#define CLEANUP_HANDLER delete_temp_mqs ()
diff --git a/rt/tst-mqueue1.c b/rt/tst-mqueue1.c
new file mode 100644
index 0000000..a6f8fb5
--- /dev/null
+++ b/rt/tst-mqueue1.c
@@ -0,0 +1,416 @@
+/* Test message queue passing.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+static int
+intcmp (const void *a, const void *b)
+{
+ if (*(unsigned char *)a < *(unsigned char *)b)
+ return 1;
+ if (*(unsigned char *)a > *(unsigned char *)b)
+ return -1;
+ return 0;
+}
+
+static int
+check_attrs (struct mq_attr *attr, int nonblock, long cnt)
+{
+ int result = 0;
+
+ if (attr->mq_maxmsg != 10 || attr->mq_msgsize != 1)
+ {
+ printf ("attributes don't match those passed to mq_open\n"
+ "mq_maxmsg %ld, mq_msgsize %ld\n",
+ attr->mq_maxmsg, attr->mq_msgsize);
+ result = 1;
+ }
+
+ if ((attr->mq_flags & O_NONBLOCK) != nonblock)
+ {
+ printf ("mq_flags %lx != %x\n", (attr->mq_flags & O_NONBLOCK), nonblock);
+ result = 1;
+ }
+
+ if (attr->mq_curmsgs != cnt)
+ {
+ printf ("mq_curmsgs %ld != %ld\n", attr->mq_curmsgs, cnt);
+ result = 1;
+ }
+
+ return result;
+}
+
+static int
+do_one_test (mqd_t q, const char *name, int nonblock)
+{
+ int result = 0;
+
+ unsigned char v []
+ = { 0x32, 0x62, 0x22, 0x31, 0x11, 0x73, 0x61, 0x21, 0x72, 0x71, 0x81 };
+
+ struct mq_attr attr;
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 0);
+
+ if (mq_receive (q, &v[0], 1, NULL) != -1)
+ {
+ puts ("mq_receive on O_WRONLY mqd_t unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_receive on O_WRONLY mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ struct timespec ts;
+ if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+ --ts.tv_sec;
+ else
+ {
+ ts.tv_sec = time (NULL) - 1;
+ ts.tv_nsec = 0;
+ }
+
+ int ret;
+ for (int i = 0; i < 10; ++i)
+ {
+ if (i & 1)
+ ret = mq_send (q, &v[i], 1, v[i] >> 4);
+ else
+ ret = mq_timedsend (q, &v[i], 1, v[i] >> 4, &ts);
+
+ if (ret)
+ {
+ printf ("mq_%ssend failed: %m\n", (i & 1) ? "" : "timed");
+ result = 1;
+ }
+ }
+
+ ret = mq_timedsend (q, &v[10], 1, 8, &ts);
+ if (ret != -1)
+ {
+ puts ("mq_timedsend on full queue did not fail");
+ result = 1;
+ }
+ else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
+ {
+ printf ("mq_timedsend on full queue did not fail with %s: %m\n",
+ nonblock ? "EAGAIN" : "ETIMEDOUT");
+ result = 1;
+ }
+
+ if (nonblock)
+ {
+ ret = mq_send (q, &v[10], 1, 8);
+ if (ret != -1)
+ {
+ puts ("mq_send on full non-blocking queue did not fail");
+ result = 1;
+ }
+ else if (errno != EAGAIN)
+ {
+ printf ("mq_send on full non-blocking queue did not fail"
+ "with EAGAIN: %m\n");
+ result = 1;
+ }
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 10);
+
+ pid_t pid = fork ();
+ if (pid == -1)
+ {
+ printf ("fork failed: %m\n");
+ result = 1;
+ }
+ else if (pid == 0)
+ {
+ result = 0;
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in child failed: %m\n");
+ result = 1;
+ }
+
+ q = mq_open (name, O_RDONLY | nonblock);
+ if (q == (mqd_t) -1)
+ {
+ printf ("mq_open in child failed: %m\n");
+ exit (1);
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 10);
+
+ unsigned char vr[11] = { };
+ unsigned int prio;
+ ssize_t rets;
+
+ if (mq_send (q, &v[0], 1, 1) != -1)
+ {
+ puts ("mq_send on O_RDONLY mqd_t unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_send on O_WRONLY mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ for (int i = 0; i < 10; ++i)
+ {
+ if (i & 1)
+ rets = mq_receive (q, &vr[i], 1, &prio);
+ else
+ rets = mq_timedreceive (q, &vr[i], 1, &prio, &ts);
+
+ if (rets != 1)
+ {
+ if (rets == -1)
+ printf ("mq_%sreceive failed: %m\n", (i & 1) ? "" : "timed");
+ else
+ printf ("mq_%sreceive returned %zd != 1\n",
+ (i & 1) ? "" : "timed", rets);
+ result = 1;
+ }
+ else if (prio != (unsigned int) vr[i] >> 4)
+ {
+ printf ("unexpected priority %x for value %02x\n", prio,
+ vr[i]);
+ result = 1;
+ }
+ }
+
+ qsort (v, 10, 1, intcmp);
+ if (memcmp (v, vr, 10) != 0)
+ {
+ puts ("messages not received in expected order");
+ result = 1;
+ }
+
+ rets = mq_timedreceive (q, &vr[10], 1, &prio, &ts);
+ if (rets != -1)
+ {
+ puts ("mq_timedreceive on empty queue did not fail");
+ result = 1;
+ }
+ else if (errno != (nonblock ? EAGAIN : ETIMEDOUT))
+ {
+ printf ("mq_timedreceive on empty queue did not fail with %s: %m\n",
+ nonblock ? "EAGAIN" : "ETIMEDOUT");
+ result = 1;
+ }
+
+ if (nonblock)
+ {
+ ret = mq_receive (q, &vr[10], 1, &prio);
+ if (ret != -1)
+ {
+ puts ("mq_receive on empty non-blocking queue did not fail");
+ result = 1;
+ }
+ else if (errno != EAGAIN)
+ {
+ printf ("mq_receive on empty non-blocking queue did not fail"
+ "with EAGAIN: %m\n");
+ result = 1;
+ }
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 0);
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in child failed: %m\n");
+ result = 1;
+ }
+
+ exit (result);
+ }
+
+ int status;
+ if (waitpid (pid, &status, 0) != pid)
+ {
+ printf ("waitpid failed: %m\n");
+ result = 1;
+ }
+ else if (!WIFEXITED (status) || WEXITSTATUS (status))
+ {
+ printf ("child failed: %d\n", status);
+ result = 1;
+ }
+
+ memset (&attr, 0xaa, sizeof (attr));
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result = check_attrs (&attr, nonblock, 0);
+
+ return result;
+}
+
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+ int result = 0;
+
+ char name[sizeof "/tst-mqueue-" + sizeof (pid_t) * 3];
+ snprintf (name, sizeof (name), "/tst-mqueue-%u", getpid ());
+
+ struct mq_attr attr = { .mq_maxmsg = 10, .mq_msgsize = 1 };
+ mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_WRONLY, 0600, &attr);
+
+ if (q == (mqd_t) -1)
+ {
+ printf ("mq_open failed with: %m\n");
+ return result;
+ }
+ else
+ add_temp_mq (name);
+
+ result = do_one_test (q, name, 0);
+
+ mqd_t q2 = mq_open (name, O_WRONLY | O_NONBLOCK);
+ if (q2 == (mqd_t) -1)
+ {
+ printf ("mq_open failed with: %m\n");
+ q2 = q;
+ result = 1;
+ }
+ else
+ {
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in parent failed: %m\n");
+ result = 1;
+ }
+
+ q = q2;
+ result |= do_one_test (q, name, O_NONBLOCK);
+
+ if (mq_getattr (q, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+ else
+ {
+ attr.mq_flags ^= O_NONBLOCK;
+
+ struct mq_attr attr2;
+ memset (&attr2, 0x55, sizeof (attr2));
+ if (mq_setattr (q, &attr, &attr2) != 0)
+ {
+ printf ("mq_setattr failed: %m\n");
+ result = 1;
+ }
+ else if (attr.mq_flags != (attr2.mq_flags ^ O_NONBLOCK)
+ || attr.mq_maxmsg != attr2.mq_maxmsg
+ || attr.mq_msgsize != attr2.mq_msgsize
+ || attr.mq_curmsgs != 0
+ || attr2.mq_curmsgs != 0)
+ {
+ puts ("mq_setattr returned unexpected values in *omqstat");
+ result = 1;
+ }
+ else
+ {
+ result |= do_one_test (q, name, 0);
+
+ if (mq_setattr (q, &attr2, NULL) != 0)
+ {
+ printf ("mq_setattr failed: %m\n");
+ result = 1;
+ }
+ else
+ result |= do_one_test (q, name, O_NONBLOCK);
+ }
+ }
+ }
+
+ if (mq_unlink (name) != 0)
+ {
+ printf ("mq_unlink failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in parent failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q) != -1)
+ {
+ puts ("second mq_close did not fail");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("second mq_close did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/rt/tst-mqueue2.c b/rt/tst-mqueue2.c
new file mode 100644
index 0000000..1948965
--- /dev/null
+++ b/rt/tst-mqueue2.c
@@ -0,0 +1,477 @@
+/* Test message queue passing.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+static void
+alrm_handler (int sig)
+{
+}
+
+#define TIMEOUT 10
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+ int result = 0;
+
+ char name[sizeof "/tst-mqueue2-" + sizeof (pid_t) * 3];
+ snprintf (name, sizeof (name), "/tst-mqueue2-%u", getpid ());
+
+ struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
+ mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+ if (q == (mqd_t) -1)
+ {
+ printf ("mq_open failed with: %m\n");
+ return result;
+ }
+ else
+ add_temp_mq (name);
+
+ mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+ if (q2 != (mqd_t) -1)
+ {
+ puts ("mq_open with O_EXCL unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != EEXIST)
+ {
+ printf ("mq_open did not fail with EEXIST: %m\n");
+ result = 1;
+ }
+
+ char name2[sizeof "/tst-mqueue2-2-" + sizeof (pid_t) * 3];
+ snprintf (name2, sizeof (name2), "/tst-mqueue2-2-%u", getpid ());
+
+ attr.mq_maxmsg = -2;
+ q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+ if (q2 != (mqd_t) -1)
+ {
+ puts ("mq_open with invalid mq_maxmsg unexpectedly succeeded");
+ add_temp_mq (name2);
+ result = 1;
+ }
+ else if (errno != EINVAL)
+ {
+ printf ("mq_open with invalid mq_maxmsg did not fail with "
+ "EINVAL: %m\n");
+ result = 1;
+ }
+
+ attr.mq_maxmsg = 2;
+ attr.mq_msgsize = -56;
+ q2 = mq_open (name2, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+ if (q2 != (mqd_t) -1)
+ {
+ puts ("mq_open with invalid mq_msgsize unexpectedly succeeded");
+ add_temp_mq (name2);
+ result = 1;
+ }
+ else if (errno != EINVAL)
+ {
+ printf ("mq_open with invalid mq_msgsize did not fail with "
+ "EINVAL: %m\n");
+ result = 1;
+ }
+
+ char buf[3];
+ struct timespec ts;
+ if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+ ts.tv_sec += 10;
+ else
+ {
+ ts.tv_sec = time (NULL) + 10;
+ ts.tv_nsec = 0;
+ }
+
+ if (mq_timedreceive (q, buf, 1, NULL, &ts) == 0)
+ {
+ puts ("mq_timedreceive with too small msg_len did not fail");
+ result = 1;
+ }
+ else if (errno != EMSGSIZE)
+ {
+ printf ("mq_timedreceive with too small msg_len did not fail with "
+ "EMSGSIZE: %m\n");
+ result = 1;
+ }
+
+ ts.tv_nsec = -1;
+ if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
+ {
+ puts ("mq_timedreceive with negative tv_nsec did not fail");
+ result = 1;
+ }
+ else if (errno != EINVAL)
+ {
+ printf ("mq_timedreceive with negative tv_nsec did not fail with "
+ "EINVAL: %m\n");
+ result = 1;
+ }
+
+ ts.tv_nsec = 1000000000;
+ if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
+ {
+ puts ("mq_timedreceive with tv_nsec >= 1000000000 did not fail");
+ result = 1;
+ }
+ else if (errno != EINVAL)
+ {
+ printf ("mq_timedreceive with tv_nsec >= 1000000000 did not fail with "
+ "EINVAL: %m\n");
+ result = 1;
+ }
+
+ struct sigaction sa = { .sa_handler = alrm_handler, .sa_flags = 0 };
+ sigemptyset (&sa.sa_mask);
+ sigaction (SIGALRM, &sa, NULL);
+
+ struct itimerval it = { .it_value = { .tv_sec = 1 } };
+ setitimer (ITIMER_REAL, &it, NULL);
+
+ if (mq_receive (q, buf, 2, NULL) == 0)
+ {
+ puts ("mq_receive on empty queue did not block");
+ result = 1;
+ }
+ else if (errno != EINTR)
+ {
+ printf ("mq_receive on empty queue did not fail with EINTR: %m\n");
+ result = 1;
+ }
+
+ setitimer (ITIMER_REAL, &it, NULL);
+
+ ts.tv_nsec = 0;
+ if (mq_timedreceive (q, buf, 2, NULL, &ts) == 0)
+ {
+ puts ("mq_timedreceive on empty queue did not block");
+ result = 1;
+ }
+ else if (errno != EINTR)
+ {
+ printf ("mq_timedreceive on empty queue did not fail with EINTR: %m\n");
+ result = 1;
+ }
+
+ buf[0] = '6';
+ buf[1] = '7';
+ if (mq_send (q, buf, 2, 3) != 0
+ || (buf[0] = '8', mq_send (q, buf, 1, 4) != 0))
+ {
+ printf ("mq_send failed: %m\n");
+ result = 1;
+ }
+
+ memset (buf, ' ', sizeof (buf));
+
+ unsigned int prio;
+ ssize_t rets = mq_receive (q, buf, 3, &prio);
+ if (rets != 1)
+ {
+ if (rets == -1)
+ printf ("mq_receive failed: %m\n");
+ else
+ printf ("mq_receive returned %zd != 1\n", rets);
+ result = 1;
+ }
+ else if (prio != 4 || memcmp (buf, "8 ", 3) != 0)
+ {
+ printf ("mq_receive prio %u (4) buf \"%c%c%c\" (\"8 \")\n",
+ prio, buf[0], buf[1], buf[2]);
+ result = 1;
+ }
+
+ rets = mq_receive (q, buf, 2, NULL);
+ if (rets != 2)
+ {
+ if (rets == -1)
+ printf ("mq_receive failed: %m\n");
+ else
+ printf ("mq_receive returned %zd != 2\n", rets);
+ result = 1;
+ }
+ else if (memcmp (buf, "67 ", 3) != 0)
+ {
+ printf ("mq_receive buf \"%c%c%c\" != \"67 \"\n",
+ buf[0], buf[1], buf[2]);
+ result = 1;
+ }
+
+ buf[0] = '2';
+ buf[1] = '1';
+ if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
+ ts.tv_sec = time (NULL);
+ ts.tv_nsec = -1000000001;
+ if ((mq_timedsend (q, buf, 2, 5, &ts) != 0
+ && (errno != EINVAL || mq_send (q, buf, 2, 5) != 0))
+ || (buf[0] = '3', ts.tv_nsec = -ts.tv_nsec,
+ (mq_timedsend (q, buf, 1, 4, &ts) != 0
+ && (errno != EINVAL || mq_send (q, buf, 1, 4) != 0))))
+ {
+ printf ("mq_timedsend failed: %m\n");
+ result = 1;
+ }
+
+ buf[0] = '-';
+ ts.tv_nsec = 1000000001;
+ if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
+ {
+ puts ("mq_timedsend with tv_nsec >= 1000000000 did not fail");
+ result = 1;
+ }
+ else if (errno != EINVAL)
+ {
+ printf ("mq_timedsend with tv_nsec >= 1000000000 did not fail with "
+ "EINVAL: %m\n");
+ result = 1;
+ }
+
+ ts.tv_nsec = -2;
+ if (mq_timedsend (q, buf, 1, 6, &ts) == 0)
+ {
+ puts ("mq_timedsend with negative tv_nsec did not fail");
+ result = 1;
+ }
+ else if (errno != EINVAL)
+ {
+ printf ("mq_timedsend with megatove tv_nsec did not fail with "
+ "EINVAL: %m\n");
+ result = 1;
+ }
+
+ setitimer (ITIMER_REAL, &it, NULL);
+
+ if (mq_send (q, buf, 2, 8) == 0)
+ {
+ puts ("mq_send on full queue did not block");
+ result = 1;
+ }
+ else if (errno != EINTR)
+ {
+ printf ("mq_send on full queue did not fail with EINTR: %m\n");
+ result = 1;
+ }
+
+ setitimer (ITIMER_REAL, &it, NULL);
+
+ ts.tv_sec += 10;
+ ts.tv_nsec = 0;
+ if (mq_timedsend (q, buf, 2, 7, &ts) == 0)
+ {
+ puts ("mq_timedsend on full queue did not block");
+ result = 1;
+ }
+ else if (errno != EINTR)
+ {
+ printf ("mq_timedsend on full queue did not fail with EINTR: %m\n");
+ result = 1;
+ }
+
+ memset (buf, ' ', sizeof (buf));
+
+ if (clock_gettime (CLOCK_REALTIME, &ts) != 0)
+ ts.tv_sec = time (NULL);
+ ts.tv_nsec = -1000000001;
+ rets = mq_timedreceive (q, buf, 2, &prio, &ts);
+ if (rets == -1 && errno == EINVAL)
+ rets = mq_receive (q, buf, 2, &prio);
+ if (rets != 2)
+ {
+ if (rets == -1)
+ printf ("mq_timedreceive failed: %m\n");
+ else
+ printf ("mq_timedreceive returned %zd != 2\n", rets);
+ result = 1;
+ }
+ else if (prio != 5 || memcmp (buf, "21 ", 3) != 0)
+ {
+ printf ("mq_timedreceive prio %u (5) buf \"%c%c%c\" (\"21 \")\n",
+ prio, buf[0], buf[1], buf[2]);
+ result = 1;
+ }
+
+ if (mq_receive (q, buf, 1, NULL) == 0)
+ {
+ puts ("mq_receive with too small msg_len did not fail");
+ result = 1;
+ }
+ else if (errno != EMSGSIZE)
+ {
+ printf ("mq_receive with too small msg_len did not fail with "
+ "EMSGSIZE: %m\n");
+ result = 1;
+ }
+
+ ts.tv_nsec = -ts.tv_nsec;
+ rets = mq_timedreceive (q, buf, 2, NULL, &ts);
+ if (rets == -1 && errno == EINVAL)
+ rets = mq_receive (q, buf, 2, NULL);
+ if (rets != 1)
+ {
+ if (rets == -1)
+ printf ("mq_timedreceive failed: %m\n");
+ else
+ printf ("mq_timedreceive returned %zd != 1\n", rets);
+ result = 1;
+ }
+ else if (memcmp (buf, "31 ", 3) != 0)
+ {
+ printf ("mq_timedreceive buf \"%c%c%c\" != \"31 \"\n",
+ buf[0], buf[1], buf[2]);
+ result = 1;
+ }
+
+ if (mq_send (q, "", 0, 2) != 0)
+ {
+ printf ("mq_send with msg_len 0 failed: %m\n");
+ result = 1;
+ }
+
+ rets = mq_receive (q, buf, 2, &prio);
+ if (rets)
+ {
+ if (rets == -1)
+ printf ("mq_receive failed: %m\n");
+ else
+ printf ("mq_receive returned %zd != 0\n", rets);
+ result = 1;
+ }
+
+ long mq_prio_max = sysconf (_SC_MQ_PRIO_MAX);
+ if (mq_prio_max > 0 && (unsigned int) mq_prio_max == mq_prio_max)
+ {
+ if (mq_send (q, buf, 1, mq_prio_max) == 0)
+ {
+ puts ("mq_send with MQ_PRIO_MAX priority unpexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != EINVAL)
+ {
+ printf ("mq_send with MQ_PRIO_MAX priority did not fail with "
+ "EINVAL: %m\n");
+ result = 1;
+ }
+
+ if (mq_send (q, buf, 1, mq_prio_max - 1) != 0)
+ {
+ printf ("mq_send with MQ_PRIO_MAX-1 priority failed: %m\n");
+ result = 1;
+ }
+ }
+
+ if (mq_unlink (name) != 0)
+ {
+ printf ("mq_unlink failed: %m\n");
+ result = 1;
+ }
+
+ q2 = mq_open (name, O_RDWR);
+ if (q2 != (mqd_t) -1)
+ {
+ printf ("mq_open of unlinked %s without O_CREAT unexpectedly"
+ "succeeded\n", name);
+ result = 1;
+ }
+ else if (errno != ENOENT)
+ {
+ printf ("mq_open of unlinked %s without O_CREAT did not fail with "
+ "ENOENT: %m\n", name);
+ result = 1;
+ }
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close in parent failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_receive (q, buf, 2, NULL) == 0)
+ {
+ puts ("mq_receive on invalid mqd_t did not fail");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_receive on invalid mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ if (mq_send (q, buf, 1, 2) == 0)
+ {
+ puts ("mq_send on invalid mqd_t did not fail");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_send on invalid mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ if (mq_getattr (q, &attr) == 0)
+ {
+ puts ("mq_getattr on invalid mqd_t did not fail");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_getattr on invalid mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ memset (&attr, 0, sizeof (attr));
+ if (mq_setattr (q, &attr, NULL) == 0)
+ {
+ puts ("mq_setattr on invalid mqd_t did not fail");
+ result = 1;
+ }
+ else if (errno != EBADF)
+ {
+ printf ("mq_setattr on invalid mqd_t did not fail with EBADF: %m\n");
+ result = 1;
+ }
+
+ if (mq_unlink ("/tst-mqueue2-which-should-never-exist") != -1)
+ {
+ puts ("mq_unlink of non-existant message queue unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != ENOENT)
+ {
+ printf ("mq_unlink of non-existant message queue did not fail with "
+ "ENOENT: %m\n");
+ result = 1;
+ }
+ return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/rt/tst-mqueue3.c b/rt/tst-mqueue3.c
new file mode 100644
index 0000000..021a373
--- /dev/null
+++ b/rt/tst-mqueue3.c
@@ -0,0 +1,238 @@
+/* Test SIGEV_THREAD handling for POSIX message queues.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#if _POSIX_THREADS
+# include <pthread.h>
+
+static pid_t pid;
+static mqd_t m;
+static const char message[] = "hello";
+
+# define MAXMSG 10
+# define MSGSIZE 10
+# define UNIQUE 42
+
+
+static void
+fct (union sigval s)
+{
+ /* Put the mq in non-blocking mode. */
+ struct mq_attr attr;
+ if (mq_getattr (m, &attr) != 0)
+ {
+ printf ("%s: mq_getattr failed: %m\n", __FUNCTION__);
+ exit (1);
+ }
+ attr.mq_flags |= O_NONBLOCK;
+ if (mq_setattr (m, &attr, NULL) != 0)
+ {
+ printf ("%s: mq_setattr failed: %m\n", __FUNCTION__);
+ exit (1);
+ }
+
+ /* Check the values. */
+ if (attr.mq_maxmsg != MAXMSG)
+ {
+ printf ("%s: mq_maxmsg wrong: is %ld, expecte %d\n",
+ __FUNCTION__, attr.mq_maxmsg, MAXMSG);
+ exit (1);
+ }
+ if (attr.mq_msgsize != MAXMSG)
+ {
+ printf ("%s: mq_msgsize wrong: is %ld, expecte %d\n",
+ __FUNCTION__, attr.mq_msgsize, MSGSIZE);
+ exit (1);
+ }
+
+ /* Read the message. */
+ char buf[attr.mq_msgsize];
+ ssize_t n = TEMP_FAILURE_RETRY (mq_receive (m, buf, attr.mq_msgsize, NULL));
+ if (n != sizeof (message))
+ {
+ printf ("%s: length of message wrong: is %zd, expected %zu\n",
+ __FUNCTION__, n, sizeof (message));
+ exit (1);
+ }
+ if (memcmp (buf, message, sizeof (message)) != 0)
+ {
+ printf ("%s: message wrong: is \"%s\", expected \"%s\"\n",
+ __FUNCTION__, buf, message);
+ exit (1);
+ }
+
+ exit (UNIQUE);
+}
+
+
+int
+do_test (void)
+{
+ char tmpfname[] = "/tmp/tst-mqueue3-barrier.XXXXXX";
+ int fd = mkstemp (tmpfname);
+ if (fd == -1)
+ {
+ printf ("cannot open temporary file: %m\n");
+ return 1;
+ }
+
+ /* Make sure it is always removed. */
+ unlink (tmpfname);
+
+ /* Create one page of data. */
+ size_t ps = sysconf (_SC_PAGESIZE);
+ char data[ps];
+ memset (data, '\0', ps);
+
+ /* Write the data to the file. */
+ if (write (fd, data, ps) != (ssize_t) ps)
+ {
+ puts ("short write");
+ return 1;
+ }
+
+ void *mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (mem == MAP_FAILED)
+ {
+ printf ("mmap failed: %m\n");
+ return 1;
+ }
+
+ pthread_barrier_t *b;
+ b = (pthread_barrier_t *) (((uintptr_t) mem + __alignof (pthread_barrier_t))
+ & ~(__alignof (pthread_barrier_t) - 1));
+
+ pthread_barrierattr_t a;
+ if (pthread_barrierattr_init (&a) != 0)
+ {
+ puts ("barrierattr_init failed");
+ return 1;
+ }
+
+ if (pthread_barrierattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
+ {
+ puts ("barrierattr_setpshared failed, could not test");
+ return 0;
+ }
+
+ if (pthread_barrier_init (b, &a, 2) != 0)
+ {
+ puts ("barrier_init failed");
+ return 1;
+ }
+
+ if (pthread_barrierattr_destroy (&a) != 0)
+ {
+ puts ("barrierattr_destroy failed");
+ return 1;
+ }
+
+ /* Name for the message queue. */
+ char mqname[sizeof ("/tst-mqueue3-") + 3 * sizeof (pid_t)];
+ snprintf (mqname, sizeof (mqname) - 1, "/tst-mqueue3-%ld",
+ (long int) getpid ());
+
+ /* Create the message queue. */
+ struct mq_attr attr = { .mq_maxmsg = MAXMSG, .mq_msgsize = MSGSIZE };
+ m = mq_open (mqname, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+ if (m == -1)
+ {
+ puts ("mq_open failed");
+ return 1;
+ }
+
+ /* Unlink the message queue right away. */
+ if (mq_unlink (mqname) != 0)
+ {
+ puts ("mq_unlink failed");
+ return 1;
+ }
+
+ pid = fork ();
+ if (pid == -1)
+ {
+ puts ("fork failed");
+ return 1;
+ }
+ if (pid == 0)
+ {
+ /* Request notification via thread. */
+ struct sigevent ev;
+ ev.sigev_notify = SIGEV_THREAD;
+ ev.sigev_notify_function = fct;
+ ev.sigev_value.sival_ptr = NULL;
+ ev.sigev_notify_attributes = NULL;
+
+ /* Tell the kernel. */
+ if (mq_notify (m,&ev) != 0)
+ {
+ puts ("mq_notify failed");
+ exit (1);
+ }
+
+ /* Tell the parent we are ready. */
+ (void) pthread_barrier_wait (b);
+
+ /* Make sure the process goes away eventually. */
+ alarm (10);
+
+ /* Do nothing forever. */
+ while (1)
+ pause ();
+ }
+
+ /* Wait for the child process to register to notification method. */
+ (void) pthread_barrier_wait (b);
+
+ /* Send the message. */
+ if (mq_send (m, message, sizeof (message), 1) != 0)
+ {
+ kill (pid, SIGKILL);
+ puts ("mq_send failed");
+ return 1;
+ }
+
+ int r;
+ if (TEMP_FAILURE_RETRY (waitpid (pid, &r, 0)) != pid)
+ {
+ kill (pid, SIGKILL);
+ puts ("waitpid failed");
+ return 1;
+ }
+
+ return WIFEXITED (r) && WEXITSTATUS (r) == UNIQUE ? 0 : 1;
+}
+# define TEST_FUNCTION do_test ()
+#else
+# define TEST_FUNCTION 0
+#endif
+
+#include "../test-skeleton.c"
diff --git a/rt/tst-mqueue4.c b/rt/tst-mqueue4.c
new file mode 100644
index 0000000..fa83ece
--- /dev/null
+++ b/rt/tst-mqueue4.c
@@ -0,0 +1,276 @@
+/* Test message queue passing.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <mqueue.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+#include "tst-mqueue.h"
+
+#define TIMEOUT 4
+#define TEST_FUNCTION do_test ()
+static int
+do_test (void)
+{
+ int result = 0;
+
+ char name[sizeof "/tst-mqueue4-" + sizeof (pid_t) * 3 + NAME_MAX];
+ char *p;
+ p = name + snprintf (name, sizeof (name), "/tst-mqueue4-%u", getpid ());
+ struct mq_attr attr = { .mq_maxmsg = 2, .mq_msgsize = 2 };
+ mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+
+ if (q == (mqd_t) -1)
+ {
+ printf ("mq_open failed with: %m\n");
+ return result;
+ }
+ else
+ add_temp_mq (name);
+
+ *p = '.';
+ memset (p + 1, 'x', NAME_MAX + 1 - (p - name));
+ name[NAME_MAX + 1] = '\0';
+
+ mqd_t q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+ if (q2 == (mqd_t) -1)
+ {
+ printf ("mq_open with NAME_MAX long name compoment failed with: %m\n");
+ result = 1;
+ }
+
+ if (mq_unlink (name) != 0)
+ {
+ printf ("mq_unlink failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q2) != 0)
+ {
+ printf ("mq_close failed: %m\n");
+ result = 1;
+ }
+
+ name[NAME_MAX + 1] = 'x';
+ name[NAME_MAX + 2] = '\0';
+ q2 = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr);
+ if (q2 != (mqd_t) -1)
+ {
+ puts ("mq_open with too long name component unexpectedly succeeded");
+ mq_unlink (name);
+ mq_close (q2);
+ result = 1;
+ }
+ else if (errno != ENAMETOOLONG)
+ {
+ printf ("mq_open with too long name component did not fail with "
+ "ENAMETOOLONG: %m\n");
+ result = 1;
+ }
+
+ *p = '\0';
+ attr.mq_maxmsg = 1;
+ attr.mq_msgsize = 3;
+ q2 = mq_open (name, O_CREAT | O_RDWR, 0600, &attr);
+ if (q2 == (mqd_t) -1)
+ {
+ printf ("mq_open without O_EXCL failed with %m\n");
+ result = 1;
+ }
+
+ char buf[3];
+ strcpy (buf, "jk");
+ if (mq_send (q, buf, 2, 4) != 0)
+ {
+ printf ("mq_send failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_send (q, buf + 1, 1, 5) != 0)
+ {
+ printf ("mq_send failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_getattr (q2, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+
+ if ((attr.mq_flags & O_NONBLOCK)
+ || attr.mq_maxmsg != 2
+ || attr.mq_msgsize != 2
+ || attr.mq_curmsgs != 2)
+ {
+ printf ("mq_getattr returned unexpected { .mq_flags = %ld,\n"
+ ".mq_maxmsg = %ld, .mq_msgsize = %ld, .mq_curmsgs = %ld }\n",
+ attr.mq_flags, attr.mq_maxmsg, attr.mq_msgsize, attr.mq_curmsgs);
+ result = 1;
+ }
+
+ struct timespec ts;
+ if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+ ++ts.tv_sec;
+ else
+ {
+ ts.tv_sec = time (NULL) + 1;
+ ts.tv_nsec = 0;
+ }
+
+ if (mq_timedsend (q2, buf, 1, 1, &ts) == 0)
+ {
+ puts ("mq_timedsend unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != ETIMEDOUT)
+ {
+ printf ("mq_timedsend did not fail with ETIMEDOUT: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q2) != 0)
+ {
+ printf ("mq_close failed: %m\n");
+ result = 1;
+ }
+
+ q2 = mq_open (name, O_RDONLY, 0600);
+ if (q2 == (mqd_t) -1)
+ {
+ printf ("mq_open without O_CREAT failed with %m\n");
+ result = 1;
+ }
+
+ mqd_t q3 = mq_open (name, O_RDONLY, 0600);
+ if (q3 == (mqd_t) -1)
+ {
+ printf ("mq_open without O_CREAT failed with %m\n");
+ result = 1;
+ }
+
+ memset (buf, ' ', sizeof (buf));
+
+ unsigned int prio;
+ ssize_t rets = mq_receive (q2, buf, 2, &prio);
+ if (rets != 1)
+ {
+ if (rets == -1)
+ printf ("mq_receive failed with: %m\n");
+ else
+ printf ("mq_receive returned %zd != 1\n", rets);
+ result = 1;
+ }
+ else if (prio != 5 || memcmp (buf, "k ", 3) != 0)
+ {
+ printf ("mq_receive returned prio %u (2) buf \"%c%c%c\" (\"k \")\n",
+ prio, buf[0], buf[1], buf[2]);
+ result = 1;
+ }
+
+ if (mq_getattr (q3, &attr) != 0)
+ {
+ printf ("mq_getattr failed: %m\n");
+ result = 1;
+ }
+
+ if ((attr.mq_flags & O_NONBLOCK)
+ || attr.mq_maxmsg != 2
+ || attr.mq_msgsize != 2
+ || attr.mq_curmsgs != 1)
+ {
+ printf ("mq_getattr returned unexpected { .mq_flags = %ld,\n"
+ ".mq_maxmsg = %ld, .mq_msgsize = %ld, .mq_curmsgs = %ld }\n",
+ attr.mq_flags, attr.mq_maxmsg, attr.mq_msgsize, attr.mq_curmsgs);
+ result = 1;
+ }
+
+ rets = mq_receive (q3, buf, 2, NULL);
+ if (rets != 2)
+ {
+ if (rets == -1)
+ printf ("mq_receive failed with: %m\n");
+ else
+ printf ("mq_receive returned %zd != 2\n", rets);
+ result = 1;
+ }
+ else if (memcmp (buf, "jk ", 3) != 0)
+ {
+ printf ("mq_receive returned buf \"%c%c%c\" != \"jk \"\n",
+ buf[0], buf[1], buf[2]);
+ result = 1;
+ }
+
+ if (clock_gettime (CLOCK_REALTIME, &ts) == 0)
+ ++ts.tv_sec;
+ else
+ {
+ ts.tv_sec = time (NULL) + 1;
+ ts.tv_nsec = 0;
+ }
+
+ if (mq_timedreceive (q2, buf, 2, NULL, &ts) != -1)
+ {
+ puts ("mq_timedreceive on empty queue unexpectedly succeeded");
+ result = 1;
+ }
+ else if (errno != ETIMEDOUT)
+ {
+ printf ("mq_timedreceive on empty queue did not fail with "
+ "ETIMEDOUT: %m\n");
+ result = 1;
+ }
+
+ if (mq_unlink (name) != 0)
+ {
+ printf ("mq_unlink failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q) != 0)
+ {
+ printf ("mq_close failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q2) != 0)
+ {
+ printf ("mq_close failed: %m\n");
+ result = 1;
+ }
+
+ if (mq_close (q3) != 0)
+ {
+ printf ("mq_close failed: %m\n");
+ result = 1;
+ }
+
+ return result;
+}
+
+#include "../test-skeleton.c"
diff --git a/sysdeps/generic/bits/mqueue.h b/sysdeps/generic/bits/mqueue.h
new file mode 100644
index 0000000..27bb482
--- /dev/null
+++ b/sysdeps/generic/bits/mqueue.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MQUEUE_H
+# error "Never use <bits/mqueue.h> directly; include <mqueue.h> instead."
+#endif
+
+typedef int mqd_t;
+
+struct mq_attr
+{
+ long int mq_flags; /* Message queue flags. */
+ long int mq_maxmsg; /* Maximum number of messages. */
+ long int mq_msgsize; /* Maximum message size. */
+ long int mq_curmsgs; /* Number of messages currently queued. */
+};
diff --git a/sysdeps/generic/mq_close.c b/sysdeps/generic/mq_close.c
new file mode 100644
index 0000000..8237a64
--- /dev/null
+++ b/sysdeps/generic/mq_close.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Removes the association between message queue descriptor MQDES and its
+ message queue. */
+int
+mq_close (mqd_t mqdes)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+stub_warning (mq_close)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_getattr.c b/sysdeps/generic/mq_getattr.c
new file mode 100644
index 0000000..2d24b85
--- /dev/null
+++ b/sysdeps/generic/mq_getattr.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Query status and attributes of message queue MQDES. */
+int
+mq_getattr (mqd_t mqdes, struct mq_attr *mqstat)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+stub_warning (mq_getattr)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_notify.c b/sysdeps/generic/mq_notify.c
new file mode 100644
index 0000000..29de75a
--- /dev/null
+++ b/sysdeps/generic/mq_notify.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Register notification upon message arrival to an empty message queue
+ MQDES. */
+int
+mq_notify (mqd_t mqdes, const struct sigevent *notification)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+stub_warning (mq_notify)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_open.c b/sysdeps/generic/mq_open.c
new file mode 100644
index 0000000..dea5741
--- /dev/null
+++ b/sysdeps/generic/mq_open.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Establish connection between a process and a message queue NAME and
+ return message queue descriptor or (mqd_t) -1 on error. OFLAG determines
+ the type of access used. If O_CREAT is on OFLAG, the third argument is
+ taken as a `mode_t', the mode of the created message queue, and the fourth
+ argument is taken as `struct mq_attr *', pointer to message queue
+ attributes. If the fourth argument is NULL, default attributes are
+ used. */
+mqd_t
+mq_open (const char *name, int oflag, ...)
+{
+ __set_errno (ENOSYS);
+ return (mqd_t) -1;
+}
+stub_warning (mq_open)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_receive.c b/sysdeps/generic/mq_receive.c
new file mode 100644
index 0000000..527fd75
--- /dev/null
+++ b/sysdeps/generic/mq_receive.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Receive the oldest from highest priority messages in message queue
+ MQDES. */
+ssize_t
+mq_receive (mqd_t mqdes, char *msg_ptr, size_t msg_len,
+ unsigned int *msg_prio)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+stub_warning (mq_receive)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_send.c b/sysdeps/generic/mq_send.c
new file mode 100644
index 0000000..8b7cd87
--- /dev/null
+++ b/sysdeps/generic/mq_send.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Add message pointed by MSG_PTR to message queue MQDES. */
+int
+mq_send (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
+ unsigned int msg_prio)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+stub_warning (mq_send)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_setattr.c b/sysdeps/generic/mq_setattr.c
new file mode 100644
index 0000000..57ee075
--- /dev/null
+++ b/sysdeps/generic/mq_setattr.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Set attributes associated with message queue MQDES and if OMQSTAT is
+ not NULL also query its old attributes. */
+int
+mq_setattr (mqd_t mqdes, const struct mq_attr *__restrict mqstat,
+ struct mq_attr *__restrict omqstat)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+hidden_def (mq_setattr)
+stub_warning (mq_setattr)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_timedreceive.c b/sysdeps/generic/mq_timedreceive.c
new file mode 100644
index 0000000..e4723f8
--- /dev/null
+++ b/sysdeps/generic/mq_timedreceive.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Receive the oldest from highest priority messages in message queue
+ MQDES, stop waiting if ABS_TIMEOUT expires. */
+ssize_t
+mq_timedreceive (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len,
+ unsigned int *__restrict msg_prio,
+ const struct timespec *__restrict abs_timeout)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+hidden_def (mq_timedreceive)
+stub_warning (mq_timedreceive)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_timedsend.c b/sysdeps/generic/mq_timedsend.c
new file mode 100644
index 0000000..5ccfe23
--- /dev/null
+++ b/sysdeps/generic/mq_timedsend.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Add message pointed by MSG_PTR to message queue MQDES, stop blocking
+ on full message queue if ABS_TIMEOUT expires. */
+int
+mq_timedsend (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
+ unsigned int msg_prio, const struct timespec *abs_timeout)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+hidden_def (mq_timedsend)
+stub_warning (mq_timedsend)
+#include <stub-tag.h>
diff --git a/sysdeps/generic/mq_unlink.c b/sysdeps/generic/mq_unlink.c
new file mode 100644
index 0000000..e947b84
--- /dev/null
+++ b/sysdeps/generic/mq_unlink.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+
+/* Remove message queue named NAME. */
+int
+mq_unlink (const char *name)
+{
+ __set_errno (ENOSYS);
+ return -1;
+}
+stub_warning (mq_unlink)
+#include <stub-tag.h>
diff --git a/sysdeps/unix/sysv/linux/bits/local_lim.h b/sysdeps/unix/sysv/linux/bits/local_lim.h
index 169a5f1..54a51ee 100644
--- a/sysdeps/unix/sysv/linux/bits/local_lim.h
+++ b/sysdeps/unix/sysv/linux/bits/local_lim.h
@@ -63,3 +63,6 @@
/* Maximum host name length. */
#define HOST_NAME_MAX 64
+
+/* Maximum message queue priority level. */
+#define MQ_PRIO_MAX 32768
diff --git a/sysdeps/unix/sysv/linux/bits/mqueue.h b/sysdeps/unix/sysv/linux/bits/mqueue.h
new file mode 100644
index 0000000..df528f8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/mqueue.h
@@ -0,0 +1,32 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MQUEUE_H
+# error "Never use <bits/mqueue.h> directly; include <mqueue.h> instead."
+#endif
+
+typedef int mqd_t;
+
+struct mq_attr
+{
+ long int mq_flags; /* Message queue flags. */
+ long int mq_maxmsg; /* Maximum number of messages. */
+ long int mq_msgsize; /* Maximum message size. */
+ long int mq_curmsgs; /* Number of messages currently queued. */
+ long int __pad[4];
+};
diff --git a/sysdeps/unix/sysv/linux/mq_close.c b/sysdeps/unix/sysv/linux/mq_close.c
new file mode 100644
index 0000000..65522d5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mq_close.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <sysdep.h>
+
+#ifdef __NR_mq_open
+
+/* Removes the association between message queue descriptor MQDES and its
+ message queue. */
+int
+mq_close (mqd_t mqdes)
+{
+ return INLINE_SYSCALL (close, 1, mqdes);
+}
+
+#else
+# include <sysdeps/generic/mq_close.c>
+#endif
diff --git a/sysdeps/unix/sysv/linux/mq_getattr.c b/sysdeps/unix/sysv/linux/mq_getattr.c
new file mode 100644
index 0000000..94c1df5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mq_getattr.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <sysdep.h>
+
+#ifdef __NR_mq_getsetattr
+
+/* Query status and attributes of message queue MQDES. */
+int
+mq_getattr (mqd_t mqdes, struct mq_attr *mqstat)
+{
+ return mq_setattr (mqdes, NULL, mqstat);
+}
+
+#else
+# include <sysdeps/generic/mq_getattr.c>
+#endif
diff --git a/sysdeps/unix/sysv/linux/mq_notify.c b/sysdeps/unix/sysv/linux/mq_notify.c
new file mode 100644
index 0000000..6ebe8ef
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mq_notify.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <sysdep.h>
+
+#ifdef __NR_mq_notify
+
+/* Register notification upon message arrival to an empty message queue
+ MQDES. */
+int
+mq_notify (mqd_t mqdes, const struct sigevent *notification)
+{
+ /* mq_notify which handles SIGEV_THREAD is included in the thread
+ add-on. */
+ if (notification != NULL
+ && notification->sigev_notify == SIGEV_THREAD)
+ {
+ __set_errno (ENOSYS);
+ return -1;
+ }
+ return INLINE_SYSCALL (mq_notify, 2, mqdes, notification);
+}
+
+#else
+# include <sysdeps/generic/mq_notify.c>
+#endif
diff --git a/sysdeps/unix/sysv/linux/mq_open.c b/sysdeps/unix/sysv/linux/mq_open.c
new file mode 100644
index 0000000..ce5f5e9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mq_open.c
@@ -0,0 +1,59 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <stdarg.h>
+#include <sysdep.h>
+
+#ifdef __NR_mq_open
+
+/* Establish connection between a process and a message queue NAME and
+ return message queue descriptor or (mqd_t) -1 on error. OFLAG determines
+ the type of access used. If O_CREAT is on OFLAG, the third argument is
+ taken as a `mode_t', the mode of the created message queue, and the fourth
+ argument is taken as `struct mq_attr *', pointer to message queue
+ attributes. If the fourth argument is NULL, default attributes are
+ used. */
+mqd_t
+mq_open (const char *name, int oflag, ...)
+{
+ if (name[0] != '/')
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+
+ mode_t mode = 0;
+ struct mq_attr *attr = NULL;
+ if (oflag & O_CREAT)
+ {
+ va_list ap;
+
+ va_start (ap, oflag);
+ mode = va_arg (ap, mode_t);
+ attr = va_arg (ap, struct mq_attr *);
+ va_end (ap);
+ }
+
+ return INLINE_SYSCALL (mq_open, 4, name + 1, oflag, mode, attr);
+}
+
+#else
+# include <sysdeps/generic/mq_open.c>
+#endif
diff --git a/sysdeps/unix/sysv/linux/mq_receive.c b/sysdeps/unix/sysv/linux/mq_receive.c
new file mode 100644
index 0000000..b24ba4b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mq_receive.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <sysdep.h>
+
+#ifdef __NR_mq_timedreceive
+
+/* Receive the oldest from highest priority messages in message queue
+ MQDES. */
+ssize_t
+mq_receive (mqd_t mqdes, char *msg_ptr, size_t msg_len,
+ unsigned int *msg_prio)
+{
+ return mq_timedreceive (mqdes, msg_ptr, msg_len, msg_prio, NULL);
+}
+
+#else
+# include <sysdeps/generic/mq_receive.c>
+#endif
diff --git a/sysdeps/unix/sysv/linux/mq_send.c b/sysdeps/unix/sysv/linux/mq_send.c
new file mode 100644
index 0000000..06d367b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mq_send.c
@@ -0,0 +1,35 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <sysdep.h>
+
+#ifdef __NR_mq_timedsend
+
+/* Add message pointed by MSG_PTR to message queue MQDES. */
+int
+mq_send (mqd_t mqdes, const char *msg_ptr, size_t msg_len,
+ unsigned int msg_prio)
+{
+ return mq_timedsend (mqdes, msg_ptr, msg_len, msg_prio, NULL);
+}
+
+#else
+# include <sysdeps/generic/mq_send.c>
+#endif
diff --git a/sysdeps/unix/sysv/linux/mq_unlink.c b/sysdeps/unix/sysv/linux/mq_unlink.c
new file mode 100644
index 0000000..8da70ea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mq_unlink.c
@@ -0,0 +1,39 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <mqueue.h>
+#include <sysdep.h>
+
+#ifdef __NR_mq_unlink
+
+/* Remove message queue named NAME. */
+int
+mq_unlink (const char *name)
+{
+ if (name[0] != '/')
+ {
+ __set_errno (EINVAL);
+ return -1;
+ }
+ return INLINE_SYSCALL (mq_unlink, 1, name + 1);
+}
+
+#else
+# include <sysdeps/generic/mq_unlink.c>
+#endif
diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index 9ec085d..860094b 100644
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -86,3 +86,7 @@ flistxattr - flistxattr i:isi flistxattr
removexattr - removexattr i:ss removexattr
lremovexattr - lremovexattr i:ss lremovexattr
fremovexattr - fremovexattr i:is fremovexattr
+
+mq_timedsend - mq_timedsend Ci:ipiip __GI_mq_timedsend mq_timedsend
+mq_timedreceive - mq_timedreceive Ci:ipipp __GI_mq_timedreceive mq_timedreceive
+mq_setattr - mq_getsetattr i:ipp __GI_mq_setattr mq_setattr