2.5-18.1

14 files changed, 166 insertions, 53 deletions

diff --git a/sysdeps/pthread/Versions b/sysdeps/pthread/Versions
new file mode 100644
index 0000000..a71cffb
--- /dev/null
+++ b/sysdeps/pthread/Versions
@@ -0,0 +1,5 @@
+librt {
+  GLIBC_2.4 {
+    lio_listio; lio_listio64;
+  }
+}
diff --git a/sysdeps/pthread/aio_cancel.c b/sysdeps/pthread/aio_cancel.c
index a37b2c7..aa1ee44 100644
--- a/sysdeps/pthread/aio_cancel.c
+++ b/sysdeps/pthread/aio_cancel.c
@@ -1,5 +1,5 @@
 /* Cancel requests associated with given file descriptor.
-   Copyright (C) 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2000, 2002, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -34,7 +34,7 @@
 #include <assert.h>
 #include <errno.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 
 int
diff --git a/sysdeps/pthread/aio_fsync.c b/sysdeps/pthread/aio_fsync.c
index 4c90d69..47cc299 100644
--- a/sysdeps/pthread/aio_fsync.c
+++ b/sysdeps/pthread/aio_fsync.c
@@ -1,5 +1,5 @@
 /* Synchronize I/O in given file descriptor.
-   Copyright (C) 1997, 1999, 2002 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2002, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -30,7 +30,7 @@
 #undef aio_fsync64
 #include <errno.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 
 int
diff --git a/sysdeps/pthread/aio_misc.c b/sysdeps/pthread/aio_misc.c
index 5c9ccb4..3e1dbe9 100644
--- a/sysdeps/pthread/aio_misc.c
+++ b/sysdeps/pthread/aio_misc.c
@@ -1,5 +1,5 @@
 /* Handle general operations.
-   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004
+   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2006
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@@ -46,8 +46,7 @@ __aio_create_helper_thread (pthread_t *threadp, void *(*tf) (void *), void *arg)
 
   (void) pthread_attr_destroy (&attr);
   return ret;
-}                                                                                 
-
+}
 #endif
 
 static void add_request_to_runlist (struct requestlist *newrequest);
diff --git a/sysdeps/pthread/aio_misc.h b/sysdeps/pthread/aio_misc.h
index 44d53b0..50962c7 100644
--- a/sysdeps/pthread/aio_misc.h
+++ b/sysdeps/pthread/aio_misc.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 1997,1999,2000,2001,2003,2006 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
@@ -46,7 +46,12 @@ struct waitlist
   {
     struct waitlist *next;
 
+    /* The next two fields is used in synchronous `lio_listio' operations.  */
+#ifndef DONT_NEED_AIO_MISC_COND
     pthread_cond_t *cond;
+#endif
+    int *result;
+
     volatile int *counterp;
     /* The next field is used in asynchronous `lio_listio' operations.  */
     struct sigevent *sigevp;
diff --git a/sysdeps/pthread/aio_notify.c b/sysdeps/pthread/aio_notify.c
index 877e8d9..3f7f70e 100644
--- a/sysdeps/pthread/aio_notify.c
+++ b/sysdeps/pthread/aio_notify.c
@@ -1,6 +1,5 @@
 /* Notify initiator of AIO request.
-   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2003, 2004
-   Free Software Foundation, Inc.
+   Copyright (C) 1997-2001, 2003, 2004, 2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -144,15 +143,24 @@ __aio_notify (struct requestlist *req)
     {
       struct waitlist *next = waitlist->next;
 
-      /* Decrement the counter.  This is used in both cases.  */
-      --*waitlist->counterp;
-
       if (waitlist->sigevp == NULL)
-	pthread_cond_signal (waitlist->cond);
+	{
+	  if (waitlist->result != NULL && aiocbp->__return_value == -1)
+	    *waitlist->result = -1;
+
+#ifdef DONT_NEED_AIO_MISC_COND
+	  AIO_MISC_NOTIFY (waitlist);
+#else
+	  /* Decrement the counter.  */
+	  --*waitlist->counterp;
+
+	  pthread_cond_signal (waitlist->cond);
+#endif
+	}
       else
 	/* This is part of a asynchronous `lio_listio' operation.  If
 	   this request is the last one, send the signal.  */
-	if (*waitlist->counterp == 0)
+	if (--*waitlist->counterp == 0)
 	  {
 #ifdef BROKEN_THREAD_SIGNALS
 	    __aio_notify_only (waitlist->sigevp, waitlist->caller_pid);
diff --git a/sysdeps/pthread/aio_read.c b/sysdeps/pthread/aio_read.c
index 62646fb..973c6cd 100644
--- a/sysdeps/pthread/aio_read.c
+++ b/sysdeps/pthread/aio_read.c
@@ -1,5 +1,5 @@
 /* Asynchronous read.
-   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -20,7 +20,7 @@
 
 #include <aio.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 
 int
diff --git a/sysdeps/pthread/aio_read64.c b/sysdeps/pthread/aio_read64.c
index f91b08b..a3a427d 100644
--- a/sysdeps/pthread/aio_read64.c
+++ b/sysdeps/pthread/aio_read64.c
@@ -1,5 +1,5 @@
 /* Asynchronous read, 64bit offset version.
-   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -20,7 +20,7 @@
 
 #include <aio.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 
 int
diff --git a/sysdeps/pthread/aio_suspend.c b/sysdeps/pthread/aio_suspend.c
index 207dad9..b85b16d 100644
--- a/sysdeps/pthread/aio_suspend.c
+++ b/sysdeps/pthread/aio_suspend.c
@@ -1,5 +1,5 @@
 /* Suspend until termination of a requests.
-   Copyright (C) 1997,1998,1999,2000,2002,2003 Free Software Foundation, Inc.
+   Copyright (C) 1997-2000,2002,2003,2005,2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -36,7 +36,7 @@
 #include <sys/time.h>
 
 #include <bits/libc-lock.h>
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 
 struct clparam
@@ -44,7 +44,9 @@ struct clparam
   const struct aiocb *const *list;
   struct waitlist *waitlist;
   struct requestlist **requestlist;
+#ifndef DONT_NEED_AIO_MISC_COND
   pthread_cond_t *cond;
+#endif
   int nent;
 };
 
@@ -52,6 +54,12 @@ struct clparam
 static void
 cleanup (void *arg)
 {
+#ifdef DONT_NEED_AIO_MISC_COND
+  /* Acquire the mutex.  If pthread_cond_*wait is used this would
+     happen implicitly.  */
+  pthread_mutex_lock (&__aio_requests_mutex);
+#endif
+
   const struct clparam *param = (const struct clparam *) arg;
 
   /* Now remove the entry in the waiting list for all requests
@@ -75,8 +83,10 @@ cleanup (void *arg)
 	  *listp = (*listp)->next;
       }
 
+#ifndef DONT_NEED_AIO_MISC_COND
   /* Release the conditional variable.  */
   (void) pthread_cond_destroy (param->cond);
+#endif
 
   /* Release the mutex.  */
   pthread_mutex_unlock (&__aio_requests_mutex);
@@ -89,13 +99,21 @@ aio_suspend (list, nent, timeout)
      int nent;
      const struct timespec *timeout;
 {
+  if (__builtin_expect (nent < 0, 0))
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
   struct waitlist waitlist[nent];
   struct requestlist *requestlist[nent];
+#ifndef DONT_NEED_AIO_MISC_COND
   pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+#endif
   int cnt;
   bool any = false;
   int result = 0;
-  int dummy;
+  int cntr = 1;
 
   /* Request the mutex.  */
   pthread_mutex_lock (&__aio_requests_mutex);
@@ -111,9 +129,12 @@ aio_suspend (list, nent, timeout)
 
 	    if (requestlist[cnt] != NULL)
 	      {
+#ifndef DONT_NEED_AIO_MISC_COND
 		waitlist[cnt].cond = &cond;
+#endif
+		waitlist[cnt].result = NULL;
 		waitlist[cnt].next = requestlist[cnt]->waiting;
-		waitlist[cnt].counterp = &dummy;
+		waitlist[cnt].counterp = &cntr;
 		waitlist[cnt].sigevp = NULL;
 #ifdef BROKEN_THREAD_SIGNALS
 		waitlist[cnt].caller_pid = 0;	/* Not needed.  */
@@ -139,12 +160,17 @@ aio_suspend (list, nent, timeout)
 	  .list = list,
 	  .waitlist = waitlist,
 	  .requestlist = requestlist,
+#ifndef DONT_NEED_AIO_MISC_COND
 	  .cond = &cond,
+#endif
 	  .nent = nent
 	};
 
       pthread_cleanup_push (cleanup, &clparam);
 
+#ifdef DONT_NEED_AIO_MISC_COND
+      AIO_MISC_WAIT (result, cntr, timeout, 1);
+#else
       if (timeout == NULL)
 	result = pthread_cond_wait (&cond, &__aio_requests_mutex);
       else
@@ -166,6 +192,7 @@ aio_suspend (list, nent, timeout)
 	  result = pthread_cond_timedwait (&cond, &__aio_requests_mutex,
 					   &abstime);
 	}
+#endif
 
       pthread_cleanup_pop (0);
     }
@@ -189,19 +216,23 @@ aio_suspend (list, nent, timeout)
 	  *listp = (*listp)->next;
       }
 
+#ifndef DONT_NEED_AIO_MISC_COND
   /* Release the conditional variable.  */
   if (__builtin_expect (pthread_cond_destroy (&cond) != 0, 0))
     /* This must never happen.  */
     abort ();
+#endif
 
   if (result != 0)
     {
-      /* An error occurred.  Possibly it's EINTR.  We have to translate
+#ifndef DONT_NEED_AIO_MISC_COND
+      /* An error occurred.  Possibly it's ETIMEDOUT.  We have to translate
 	 the timeout error report of `pthread_cond_timedwait' to the
 	 form expected from `aio_suspend'.  */
       if (result == ETIMEDOUT)
 	__set_errno (EAGAIN);
       else
+#endif
 	__set_errno (result);
 
       result = -1;
diff --git a/sysdeps/pthread/aio_write.c b/sysdeps/pthread/aio_write.c
index f5e89e9..d61c5fb 100644
--- a/sysdeps/pthread/aio_write.c
+++ b/sysdeps/pthread/aio_write.c
@@ -1,5 +1,5 @@
 /* Asynchronous write.
-   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -20,7 +20,7 @@
 
 #include <aio.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 
 int
diff --git a/sysdeps/pthread/aio_write64.c b/sysdeps/pthread/aio_write64.c
index b9c84b7..4e23a3a 100644
--- a/sysdeps/pthread/aio_write64.c
+++ b/sysdeps/pthread/aio_write64.c
@@ -1,5 +1,5 @@
 /* Asynchronous write, 64bit offset version.
-   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1999, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -20,7 +20,7 @@
 
 #include <aio.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 
 int
diff --git a/sysdeps/pthread/configure b/sysdeps/pthread/configure
index 229414d..e39d311 100644
--- a/sysdeps/pthread/configure
+++ b/sysdeps/pthread/configure
@@ -1,3 +1,3 @@
-# Local configure fragment for sysdeps/unix/sysv/linux.
+# Local configure fragment for sysdeps/pthread.
 
 DEFINES="$DEFINES -D_LIBC_REENTRANT"
diff --git a/sysdeps/pthread/lio_listio.c b/sysdeps/pthread/lio_listio.c
index 5b98837..c652404 100644
--- a/sysdeps/pthread/lio_listio.c
+++ b/sysdeps/pthread/lio_listio.c
@@ -1,5 +1,6 @@
 /* Enqueue and list of read or write requests.
-   Copyright (C) 1997,1998,1999,2000,2001,2003 Free Software Foundation, Inc.
+   Copyright (C) 1997,1998,1999,2000,2001,2003,2005,2006
+	Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -25,11 +26,14 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 #define LIO_OPCODE_BASE 0
 #endif
 
+#include <shlib-compat.h>
+
+
 /* We need this special structure to handle asynchronous I/O.  */
 struct async_waitlist
   {
@@ -39,12 +43,22 @@ struct async_waitlist
   };
 
 
-int
-lio_listio (mode, list, nent, sig)
-     int mode;
-     struct aiocb *const list[];
-     int nent;
-     struct sigevent *sig;
+/* The code in glibc 2.1 to glibc 2.4 issued only one event when all
+   requests submitted with lio_listio finished.  The existing practice
+   is to issue events for the individual requests as well.  This is
+   what the new code does.  */
+#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_4)
+# define LIO_MODE(mode) ((mode) & 127)
+# define NO_INDIVIDUAL_EVENT_P(mode) ((mode) & 128)
+#else
+# define LIO_MODE(mode) mode
+# define NO_INDIVIDUAL_EVENT_P(mode) 0
+#endif
+
+
+static int
+lio_listio_internal (int mode, struct aiocb *const list[], int nent,
+		     struct sigevent *sig)
 {
   struct sigevent defsigev;
   struct requestlist *requests[nent];
@@ -52,13 +66,6 @@ lio_listio (mode, list, nent, sig)
   volatile int total = 0;
   int result = 0;
 
-  /* Check arguments.  */
-  if (mode != LIO_WAIT && mode != LIO_NOWAIT)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
   if (sig == NULL)
     {
       defsigev.sigev_notify = SIGEV_NONE;
@@ -73,7 +80,9 @@ lio_listio (mode, list, nent, sig)
   for (cnt = 0; cnt < nent; ++cnt)
     if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP)
       {
-	list[cnt]->aio_sigevent.sigev_notify = SIGEV_NONE;
+	if (NO_INDIVIDUAL_EVENT_P (mode))
+	  list[cnt]->aio_sigevent.sigev_notify = SIGEV_NONE;
+
 	requests[cnt] = __aio_enqueue_request ((aiocb_union *) list[cnt],
 					       (list[cnt]->aio_lio_opcode
 					        | LIO_OPCODE_BASE));
@@ -99,7 +108,7 @@ lio_listio (mode, list, nent, sig)
 	 locked forever.  */
       pthread_mutex_unlock (&__aio_requests_mutex);
 
-      if (mode == LIO_NOWAIT)
+      if (LIO_MODE (mode) == LIO_NOWAIT)
 	{
 #ifdef BROKEN_THREAD_SIGNALS
 	__aio_notify_only (sig,
@@ -111,11 +120,13 @@ lio_listio (mode, list, nent, sig)
 
       return result;
     }
-  else if (mode == LIO_WAIT)
+  else if (LIO_MODE (mode) == LIO_WAIT)
     {
+#ifndef DONT_NEED_AIO_MISC_COND
       pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-      struct waitlist waitlist[nent];
       int oldstate;
+#endif
+      struct waitlist waitlist[nent];
 
       total = 0;
       for (cnt = 0; cnt < nent; ++cnt)
@@ -124,7 +135,10 @@ lio_listio (mode, list, nent, sig)
 
 	  if (requests[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP)
 	    {
+#ifndef DONT_NEED_AIO_MISC_COND
 	      waitlist[cnt].cond = &cond;
+#endif
+	      waitlist[cnt].result = &result;
 	      waitlist[cnt].next = requests[cnt]->waiting;
 	      waitlist[cnt].counterp = &total;
 	      waitlist[cnt].sigevp = NULL;
@@ -136,21 +150,32 @@ lio_listio (mode, list, nent, sig)
 	    }
 	}
 
-      /* Since `pthread_cond_wait'/`pthread_cond_timedwait' are cancelation
+#ifdef DONT_NEED_AIO_MISC_COND
+      AIO_MISC_WAIT (result, total, NULL, 0);
+#else
+      /* Since `pthread_cond_wait'/`pthread_cond_timedwait' are cancellation
 	 points we must be careful.  We added entries to the waiting lists
-	 which we must remove.  So defer cancelation for now.  */
+	 which we must remove.  So defer cancellation for now.  */
       pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &oldstate);
 
       while (total > 0)
 	pthread_cond_wait (&cond, &__aio_requests_mutex);
 
-      /* Now it's time to restore the cancelation state.  */
+      /* Now it's time to restore the cancellation state.  */
       pthread_setcancelstate (oldstate, NULL);
 
       /* Release the conditional variable.  */
       if (pthread_cond_destroy (&cond) != 0)
 	/* This must never happen.  */
 	abort ();
+#endif
+
+      /* If any of the I/O requests failed, return -1 and set errno.  */
+      if (result != 0)
+	{
+	  __set_errno (result == EINTR ? EINTR : EIO);
+	  result = -1;
+	}
     }
   else
     {
@@ -179,7 +204,10 @@ lio_listio (mode, list, nent, sig)
 	      if (requests[cnt] != NULL
 		  && list[cnt]->aio_lio_opcode != LIO_NOP)
 		{
+#ifndef DONT_NEED_AIO_MISC_COND
 		  waitlist->list[cnt].cond = NULL;
+#endif
+		  waitlist->list[cnt].result = NULL;
 		  waitlist->list[cnt].next = requests[cnt]->waiting;
 		  waitlist->list[cnt].counterp = &waitlist->counter;
 		  waitlist->list[cnt].sigevp = &waitlist->sigev;
@@ -201,3 +229,38 @@ lio_listio (mode, list, nent, sig)
 
   return result;
 }
+
+
+#if SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_4)
+int
+attribute_compat_text_section
+__lio_listio_21 (int mode, struct aiocb *const list[], int nent,
+		 struct sigevent *sig)
+{
+  /* Check arguments.  */
+  if (mode != LIO_WAIT && mode != LIO_NOWAIT)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return lio_listio_internal (mode | LIO_NO_INDIVIDUAL_EVENT, list, nent, sig);
+}
+compat_symbol (librt, __lio_listio_21, lio_listio, GLIBC_2_1);
+#endif
+
+
+int
+__lio_listio_item_notify (int mode, struct aiocb *const list[], int nent,
+			  struct sigevent *sig)
+{
+    /* Check arguments.  */
+  if (mode != LIO_WAIT && mode != LIO_NOWAIT)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  return lio_listio_internal (mode, list, nent, sig);
+}
+versioned_symbol (librt, __lio_listio_item_notify, lio_listio, GLIBC_2_4);
diff --git a/sysdeps/pthread/lio_listio64.c b/sysdeps/pthread/lio_listio64.c
index fee1e59..c6b7cf7 100644
--- a/sysdeps/pthread/lio_listio64.c
+++ b/sysdeps/pthread/lio_listio64.c
@@ -1,5 +1,5 @@
 /* Enqueue and list of read or write requests, 64bit offset version.
-   Copyright (C) 1997, 1998, 1999, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1997,1998,1999,2003,2005,2006 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -24,9 +24,11 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "aio_misc.h"
+#include <aio_misc.h>
 
 #define lio_listio lio_listio64
+#define __lio_listio_21 __lio_listio64_21
+#define __lio_listio_item_notify __lio_listio64_item_notify
 #define aiocb aiocb64
 #define LIO_OPCODE_BASE 128
 #include <lio_listio.c>