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159 lines
3.6 KiB
C
159 lines
3.6 KiB
C
/***********************************************************
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Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
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Amsterdam, The Netherlands.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Stichting Mathematisch
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Centrum or CWI not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior permission.
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STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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#include <cthreads.h>
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/*
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* Initialization.
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*/
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static void _init_thread _P0()
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{
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cthread_init();
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}
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/*
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* Thread support.
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*/
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int start_new_thread _P2(func, void (*func) _P((void *)), arg, void *arg)
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{
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#if defined(SGI_THREADS) && defined(USE_DL)
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long addr, size;
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static int local_initialized = 0;
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#endif /* SGI_THREADS and USE_DL */
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int success = 0; /* init not needed when SOLARIS_THREADS and */
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/* C_THREADS implemented properly */
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dprintf(("start_new_thread called\n"));
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if (!initialized)
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init_thread();
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(void) cthread_fork(func, arg);
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return success < 0 ? 0 : 1;
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}
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static void do_exit_thread _P1(no_cleanup, int no_cleanup)
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{
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dprintf(("exit_thread called\n"));
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if (!initialized)
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if (no_cleanup)
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_exit(0);
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else
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exit(0);
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cthread_exit(0);
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}
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void exit_thread _P0()
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{
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do_exit_thread(0);
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}
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void _exit_thread _P0()
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{
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do_exit_thread(1);
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}
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#ifndef NO_EXIT_PROG
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static void do_exit_prog _P2(status, int status, no_cleanup, int no_cleanup)
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{
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dprintf(("exit_prog(%d) called\n", status));
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if (!initialized)
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if (no_cleanup)
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_exit(status);
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else
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exit(status);
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}
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void exit_prog _P1(status, int status)
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{
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do_exit_prog(status, 0);
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}
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void _exit_prog _P1(status, int status)
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{
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do_exit_prog(status, 1);
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}
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#endif /* NO_EXIT_PROG */
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/*
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* Lock support.
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*/
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type_lock allocate_lock _P0()
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{
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dprintf(("allocate_lock called\n"));
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if (!initialized)
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init_thread();
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dprintf(("allocate_lock() -> %lx\n", (long)lock));
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return (type_lock) lock;
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}
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void free_lock _P1(lock, type_lock lock)
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{
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dprintf(("free_lock(%lx) called\n", (long)lock));
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}
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int acquire_lock _P2(lock, type_lock lock, waitflag, int waitflag)
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{
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int success;
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dprintf(("acquire_lock(%lx, %d) called\n", (long)lock, waitflag));
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dprintf(("acquire_lock(%lx, %d) -> %d\n", (long)lock, waitflag, success));
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return success;
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}
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void release_lock _P1(lock, type_lock lock)
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{
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dprintf(("release_lock(%lx) called\n", (long)lock));
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}
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/*
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* Semaphore support.
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*/
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type_sema allocate_sema _P1(value, int value)
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{
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dprintf(("allocate_sema called\n"));
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if (!initialized)
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init_thread();
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dprintf(("allocate_sema() -> %lx\n", (long) sema));
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return (type_sema) sema;
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}
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void free_sema _P1(sema, type_sema sema)
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{
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dprintf(("free_sema(%lx) called\n", (long) sema));
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}
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void down_sema _P1(sema, type_sema sema)
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{
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dprintf(("down_sema(%lx) called\n", (long) sema));
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dprintf(("down_sema(%lx) return\n", (long) sema));
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}
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void up_sema _P1(sema, type_sema sema)
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{
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dprintf(("up_sema(%lx)\n", (long) sema));
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}
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