diff options
Diffstat (limited to 'signal/allocrtsig.c')
-rw-r--r-- | signal/allocrtsig.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/signal/allocrtsig.c b/signal/allocrtsig.c deleted file mode 100644 index d2a4687d68..0000000000 --- a/signal/allocrtsig.c +++ /dev/null @@ -1,78 +0,0 @@ -/* Handle real-time signal allocation. Generic version. - Copyright (C) 1997-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 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 - <http://www.gnu.org/licenses/>. */ - -#include <signal.h> - -/* Another sysdeps file can #define this and then #include this file. */ -#ifndef RESERVED_SIGRT -# define RESERVED_SIGRT 0 -#endif - -/* In these variables we keep track of the used variables. If the - platform does not support any real-time signals we will define the - values to some unreasonable value which will signal failing of all - the functions below. */ -#ifdef __SIGRTMIN -static int current_rtmin = __SIGRTMIN + RESERVED_SIGRT; -static int current_rtmax = __SIGRTMAX; -#endif - -/* Return number of available real-time signal with highest priority. */ -int -__libc_current_sigrtmin (void) -{ -#ifdef __SIGRTMIN - return current_rtmin; -#else - return -1; -#endif -} -libc_hidden_def (__libc_current_sigrtmin) -strong_alias (__libc_current_sigrtmin, __libc_current_sigrtmin_private) - -/* Return number of available real-time signal with lowest priority. */ -int -__libc_current_sigrtmax (void) -{ -#ifdef __SIGRTMIN - return current_rtmax; -#else - return -1; -#endif -} -libc_hidden_def (__libc_current_sigrtmax) -strong_alias (__libc_current_sigrtmax, __libc_current_sigrtmax_private) - -/* Allocate real-time signal with highest/lowest available - priority. Please note that we don't use a lock since we assume - this function to be called at program start. */ -int -__libc_allocate_rtsig (int high) -{ -#ifndef __SIGRTMIN - return -1; -#else - if (current_rtmin == -1 || current_rtmin > current_rtmax) - /* We don't have any more signals available. */ - return -1; - - return high ? current_rtmin++ : current_rtmax--; -#endif -} -strong_alias (__libc_allocate_rtsig, __libc_allocate_rtsig_private) |