From 08734ccd983c4d048ef812d181d5ea9a8860ae45 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Thu, 8 Jan 2015 15:31:15 -0800 Subject: Clean up allocrtsig code. --- sysdeps/generic/testrtsig.h | 27 ------------------ sysdeps/nptl/allocrtsig.c | 49 ++++++++++++++++++++++++++++++++ sysdeps/unix/sysv/linux/allocrtsig.c | 55 ------------------------------------ sysdeps/unix/sysv/linux/testrtsig.h | 27 ------------------ 4 files changed, 49 insertions(+), 109 deletions(-) delete mode 100644 sysdeps/generic/testrtsig.h create mode 100644 sysdeps/nptl/allocrtsig.c delete mode 100644 sysdeps/unix/sysv/linux/allocrtsig.c delete mode 100644 sysdeps/unix/sysv/linux/testrtsig.h (limited to 'sysdeps') diff --git a/sysdeps/generic/testrtsig.h b/sysdeps/generic/testrtsig.h deleted file mode 100644 index 842ee7f..0000000 --- a/sysdeps/generic/testrtsig.h +++ /dev/null @@ -1,27 +0,0 @@ -/* Test whether RT signals are really available. - Copyright (C) 1997-2015 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 1997. - - 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, see - . */ - -#include -#include - -static int -kernel_has_rtsig (void) -{ - return 0; -} diff --git a/sysdeps/nptl/allocrtsig.c b/sysdeps/nptl/allocrtsig.c new file mode 100644 index 0000000..6b1c5b2 --- /dev/null +++ b/sysdeps/nptl/allocrtsig.c @@ -0,0 +1,49 @@ +/* Handle real-time signal allocation. NPTL version. + Copyright (C) 2015 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, see + . */ + +#include + +/* Up to three special signals might be used privately by libpthread. + Figure out how many unique ones are actually used. */ + +#ifdef SIGCANCEL +# define SIGCANCEL_CONSUMES 1 +#else +# define SIGCANCEL_CONSUMES 0 +#endif + +#if defined SIGTIMER && (!defined SIGCANCEL || SIGTIMER != SIGCANCEL) +# define SIGTIMER_CONSUMES 1 +#else +# define SIGTIMER_CONSUMES 0 +#endif + +#if (defined SIGSETXID \ + && (!defined SIGCANCEL || SIGSETXID != SIGCANCEL) \ + && (!defined SIGTIMER || SIGSETXID != SIGTIMER)) +# define SIGSETXID_CONSUMES 1 +#else +# define SIGSETXID_CONSUMES 0 +#endif + +/* This tells the generic code (included below) how many signal + numbers need to be reserved for libpthread's private uses. */ +#define RESERVED_SIGRT \ + (SIGCANCEL_CONSUMES + SIGTIMER_CONSUMES + SIGSETXID_CONSUMES) + +#include diff --git a/sysdeps/unix/sysv/linux/allocrtsig.c b/sysdeps/unix/sysv/linux/allocrtsig.c deleted file mode 100644 index 52ce21c..0000000 --- a/sysdeps/unix/sysv/linux/allocrtsig.c +++ /dev/null @@ -1,55 +0,0 @@ -/* Copyright (C) 2002-2015 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2002. - - 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, see - . */ - -#include - - -static int current_rtmin = __SIGRTMIN + 2; -static int current_rtmax = __SIGRTMAX; - - -/* We reserve __SIGRTMIN for use as the cancelation signal. This - signal is used internally. */ -int -__libc_current_sigrtmin (void) -{ - return current_rtmin; -} -libc_hidden_def (__libc_current_sigrtmin) -strong_alias (__libc_current_sigrtmin, __libc_current_sigrtmin_private) - - -int -__libc_current_sigrtmax (void) -{ - return current_rtmax; -} -libc_hidden_def (__libc_current_sigrtmax) -strong_alias (__libc_current_sigrtmax, __libc_current_sigrtmax_private) - - -int -__libc_allocate_rtsig (int high) -{ - if (current_rtmin == -1 || current_rtmin > current_rtmax) - /* We don't have anymore signal available. */ - return -1; - - return high ? current_rtmin++ : current_rtmax--; -} -strong_alias (__libc_allocate_rtsig, __libc_allocate_rtsig_private) diff --git a/sysdeps/unix/sysv/linux/testrtsig.h b/sysdeps/unix/sysv/linux/testrtsig.h deleted file mode 100644 index 8b12a84..0000000 --- a/sysdeps/unix/sysv/linux/testrtsig.h +++ /dev/null @@ -1,27 +0,0 @@ -/* Test whether RT signals are really available. - Copyright (C) 1997-2015 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 1997. - - 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, see - . */ - -#include -#include - -static int -kernel_has_rtsig (void) -{ - return 1; -} -- cgit v1.1