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| author | Garrett D'Amore <garrett@damore.org> | 2016-12-14 18:53:10 -0800 |
|---|---|---|
| committer | Garrett D'Amore <garrett@damore.org> | 2016-12-14 18:53:10 -0800 |
| commit | 3583d5e407476b8836228c0abc52c400d74aba61 (patch) | |
| tree | 113b6510b9f3d4f7eaffd331ecbd173724327c96 /src/platform/posix/posix_thread.h | |
| parent | e6476c5e4eac773aed4b76f16d3e76e7956c2468 (diff) | |
| download | nng-3583d5e407476b8836228c0abc52c400d74aba61.tar.gz nng-3583d5e407476b8836228c0abc52c400d74aba61.tar.bz2 nng-3583d5e407476b8836228c0abc52c400d74aba61.zip | |
More robust platform definition support.
The idea is that someday it will be possible to just concatenate the entire
set of source files into a single giant source file, for systems that
want to work this way. As a result, the build system now compiles every
file, although some of them will not have any definitions.
Diffstat (limited to 'src/platform/posix/posix_thread.h')
| -rw-r--r-- | src/platform/posix/posix_thread.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/src/platform/posix/posix_thread.h b/src/platform/posix/posix_thread.h deleted file mode 100644 index 27ad888f..00000000 --- a/src/platform/posix/posix_thread.h +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright 2016 Garrett D'Amore <garrett@damore.org> - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ - -/* - * This is more of a direct #include of a .c rather than .h file. - * But having it be a .h makes compiler rules work out properly. Do - * not include this more than once into your program, or you will - * get multiple symbols defined. - */ - -/* - * POSIX threads. - */ - -#include <pthread.h> -#include <time.h> -#include <string.h> - -struct nni_thread { - pthread_t tid; - void *arg; - void (*func)(void *); -}; - -static pthread_mutex_t plat_lock = PTHREAD_MUTEX_INITIALIZER; -static int plat_init = 0; -static int plat_fork = 0; - -static void * -thrfunc(void *arg) -{ - nni_thread_t thr = arg; - - thr->func(thr->arg); - return (NULL); -} - -int -nni_thread_create(nni_thread_t *tp, void (*fn)(void *), void *arg) -{ - nni_thread_t thr; - int rv; - - if ((thr = nni_alloc(sizeof (*thr))) == NULL) { - return (NNG_ENOMEM); - } - thr->func = fn; - thr->arg = arg; - - if ((rv = pthread_create(&thr->tid, thr, thrfunc, arg)) != 0) { - nni_free(thr, sizeof (*thr)); - return (NNG_ENOMEM); - } - *tp = thr; - return (0); -} - -void -nni_thread_reap(nni_thread_t thr) -{ - int rv; - if ((rv = pthread_join(thr->tid, NULL)) != 0) { - nni_panic("pthread_thread: %s", strerror(errno)); - } - nni_free(thr, sizeof (*thr)); -} - -void -atfork_child(void) -{ - plat_fork = 1; -} - -int -nni_platform_init(void) -{ - if (plat_fork) { - nni_panic("nng is fork-reentrant safe"); - } - if (plat_init) { - return (0); /* fast path */ - } - pthread_mutex_lock(&plat_lock); - if (plat_init) { /* check again under the lock to be sure */ - pthread_mutex_unlock(&plat_lock); - return (0); - } - if (pthread_atfork(NULL, NULL, atfork_child) != 0) { - pthread_mutex_unlock(&plat_lock); - return (NNG_ENOMEM); - } - plat_init = 1; - pthread_mutex_unlock(&plat_lock); - - return (0); -} - -void -nni_platform_fini(void) -{ - /* XXX: NOTHING *YET* */ -}
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