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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [thread.c] - Rev 718
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/**************************************************************************** * * * GNAT COMPILER COMPONENTS * * * * P T H R E A D * * * * C Implementation File * * * * Copyright (C) 2011, Free Software Foundation, Inc. * * * * GNAT is free software; you can redistribute it and/or modify it under * * terms of the GNU General Public License as published by the Free Soft- * * ware Foundation; either version 3, or (at your option) any later ver- * * sion. GNAT is distributed in the hope that it will be useful, but WITH- * * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * * or FITNESS FOR A PARTICULAR PURPOSE. * * * * As a special exception under Section 7 of GPL version 3, you are granted * * additional permissions described in the GCC Runtime Library Exception, * * version 3.1, as published by the Free Software Foundation. * * * * You should have received a copy of the GNU General Public License and * * a copy of the GCC Runtime Library Exception along with this program; * * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see * * <http://www.gnu.org/licenses/>. * * * * GNAT was originally developed by the GNAT team at New York University. * * Extensive contributions were provided by Ada Core Technologies Inc. * * * ****************************************************************************/ /* This file provides utility functions to access the threads API */ #include "s-oscons.h" #ifdef NEED_PTHREAD_CONDATTR_SETCLOCK # include <pthread.h> # include <time.h> #ifndef _AIXVERSION_530 /* We use the same runtime library for AIX 5.2 and 5.3, but pthread_condattr_ * setclock exists only on the latter, so for the former provide a dummy * implementation (declared below, weak symbol defined in init.c). * * Note: this means that under AIX 5.2 we'll be using CLOCK_MONOTONIC * timestamps from clock_gettime() as arguments to pthread_cond_timedwait, * which expects a CLOCK_REALTIME value, which is technically wrong, but * inocuous in practice on that particular platform since both clocks happen * to use close epochs. */ extern int pthread_condattr_setclock (pthread_condattr_t *attr, clockid_t cl); #endif int __gnat_pthread_condattr_setup(pthread_condattr_t *attr) { /* * If using a clock other than CLOCK_REALTIME for the Ada Monotonic_Clock, * the corresponding clock id must be set for condition variables. */ return pthread_condattr_setclock (attr, CLOCK_RT_Ada); } #else int __gnat_pthread_condattr_setup (void *attr) { /* Dummy version for other platforms, which may or may not have pthread.h */ return 0; } #endif
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