You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
4.0 KiB
C
92 lines
4.0 KiB
C
/* thread.h
|
|
* Copyright 1984-2017 Cisco Systems, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifdef FEATURE_PTHREADS
|
|
#ifdef FEATURE_WINDOWS
|
|
|
|
#include <process.h>
|
|
#include <time.h>
|
|
|
|
/* learned from http://locklessinc.com/articles/pthreads_on_windows/ which
|
|
* Windows API types and functions to use to support mutexes and condition
|
|
* variables. there's much more information there if we ever need a more
|
|
* complete implementation of pthreads functionality.
|
|
*/
|
|
|
|
typedef DWORD s_thread_t;
|
|
typedef DWORD s_thread_key_t;
|
|
typedef CRITICAL_SECTION s_thread_mutex_t;
|
|
typedef CONDITION_VARIABLE s_thread_cond_t;
|
|
typedef void s_thread_rv_t;
|
|
#define s_thread_return return
|
|
#define s_thread_self() GetCurrentThreadId()
|
|
#define s_thread_equal(t1, t2) ((t1) == (t2))
|
|
/* CreateThread description says to use _beginthread if thread uses the C library */
|
|
#define s_thread_create(start_routine, arg) (_beginthread(start_routine, 0, arg) == -1 ? EAGAIN : 0)
|
|
#define s_thread_key_create(key) ((*key = TlsAlloc()) == TLS_OUT_OF_INDEXES ? EAGAIN : 0)
|
|
#define s_thread_key_delete(key) (TlsFree(key) == 0 ? EINVAL : 0)
|
|
#define s_thread_getspecific(key) TlsGetValue(key)
|
|
#define s_thread_setspecific(key, value) (TlsSetValue(key, (void *)value) == 0 ? EINVAL : 0)
|
|
#define s_thread_mutex_init(mutex) InitializeCriticalSection(mutex)
|
|
#define s_thread_mutex_lock(mutex) (EnterCriticalSection(mutex), 0)
|
|
#define s_thread_mutex_unlock(mutex) (LeaveCriticalSection(mutex), 0)
|
|
#define s_thread_mutex_trylock(mutex) (TryEnterCriticalSection(mutex) ? 0 : EBUSY)
|
|
#define s_thread_mutex_destroy(mutex) (DeleteCriticalSection(mutex), 0)
|
|
#define s_thread_cond_init(cond) InitializeConditionVariable(cond)
|
|
#define s_thread_cond_signal(cond) (WakeConditionVariable(cond), 0)
|
|
#define s_thread_cond_broadcast(cond) (WakeAllConditionVariable(cond), 0)
|
|
#define s_thread_cond_wait(cond, mutex) (SleepConditionVariableCS(cond, mutex, INFINITE) == 0 ? EINVAL : 0)
|
|
#define s_thread_cond_destroy(cond) (0)
|
|
|
|
#else /* FEATURE_WINDOWS */
|
|
|
|
#include <pthread.h>
|
|
|
|
typedef pthread_t s_thread_t;
|
|
typedef pthread_key_t s_thread_key_t;
|
|
typedef pthread_mutex_t s_thread_mutex_t;
|
|
typedef pthread_cond_t s_thread_cond_t;
|
|
typedef void *s_thread_rv_t;
|
|
#define s_thread_return return NULL
|
|
#define s_thread_self() pthread_self()
|
|
#define s_thread_equal(t1, t2) pthread_equal(t1, t2)
|
|
static inline int s_thread_create(void *(* start_routine)(void *), void *arg) {
|
|
pthread_attr_t attr; pthread_t thread; int status;
|
|
|
|
pthread_attr_init(&attr);
|
|
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
|
status = pthread_create(&thread, &attr, start_routine, arg);
|
|
pthread_attr_destroy(&attr);
|
|
return status;
|
|
}
|
|
#define s_thread_key_create(key) pthread_key_create(key, NULL)
|
|
#define s_thread_key_delete(key) pthread_key_delete(key)
|
|
#define s_thread_getspecific(key) pthread_getspecific(key)
|
|
#define s_thread_setspecific(key, value) pthread_setspecific(key, value)
|
|
#define s_thread_mutex_init(mutex) pthread_mutex_init(mutex, NULL)
|
|
#define s_thread_mutex_lock(mutex) pthread_mutex_lock(mutex)
|
|
#define s_thread_mutex_unlock(mutex) pthread_mutex_unlock(mutex)
|
|
#define s_thread_mutex_trylock(mutex) pthread_mutex_trylock(mutex)
|
|
#define s_thread_mutex_destroy(mutex) pthread_mutex_destroy(mutex)
|
|
#define s_thread_cond_init(cond) pthread_cond_init(cond, NULL)
|
|
#define s_thread_cond_signal(cond) pthread_cond_signal(cond)
|
|
#define s_thread_cond_broadcast(cond) pthread_cond_broadcast(cond)
|
|
#define s_thread_cond_wait(cond, mutex) pthread_cond_wait(cond, mutex)
|
|
#define s_thread_cond_destroy(cond) pthread_cond_destroy(cond)
|
|
|
|
#endif /* FEATURE_WINDOWS */
|
|
#endif /* FEATURE_PTHREADS */
|