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/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2018 Magnus Edenhill
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @brief Extra methods added to tinycthread/c11threads
*/
#include "rd.h"
#include "rdtime.h"
#include "tinycthread.h"
int thrd_setname(const char *name) {
#if HAVE_PTHREAD_SETNAME_GNU
if (!pthread_setname_np(pthread_self(), name))
return thrd_success;
#elif HAVE_PTHREAD_SETNAME_DARWIN
pthread_setname_np(name);
return thrd_success;
#elif HAVE_PTHREAD_SETNAME_FREEBSD
pthread_set_name_np(pthread_self(), name);
return thrd_success;
#endif
return thrd_error;
}
int thrd_is_current(thrd_t thr) {
#if defined(_TTHREAD_WIN32_)
return GetThreadId(thr) == GetCurrentThreadId();
#else
return (pthread_self() == thr);
#endif
}
#ifdef _WIN32
void cnd_wait_enter(cnd_t *cond) {
/* Increment number of waiters */
EnterCriticalSection(&cond->mWaitersCountLock);
++cond->mWaitersCount;
LeaveCriticalSection(&cond->mWaitersCountLock);
}
void cnd_wait_exit(cnd_t *cond) {
/* Increment number of waiters */
EnterCriticalSection(&cond->mWaitersCountLock);
--cond->mWaitersCount;
LeaveCriticalSection(&cond->mWaitersCountLock);
}
#endif
int cnd_timedwait_ms(cnd_t *cnd, mtx_t *mtx, int timeout_ms) {
if (timeout_ms == -1 /* INFINITE*/)
return cnd_wait(cnd, mtx);
#if defined(_TTHREAD_WIN32_)
return _cnd_timedwait_win32(cnd, mtx, (DWORD)timeout_ms);
#else
struct timeval tv;
struct timespec ts;
gettimeofday(&tv, NULL);
ts.tv_sec = tv.tv_sec;
ts.tv_nsec = tv.tv_usec * 1000;
ts.tv_sec += timeout_ms / 1000;
ts.tv_nsec += (timeout_ms % 1000) * 1000000;
if (ts.tv_nsec >= 1000000000) {
ts.tv_sec++;
ts.tv_nsec -= 1000000000;
}
return cnd_timedwait(cnd, mtx, &ts);
#endif
}
int cnd_timedwait_msp(cnd_t *cnd, mtx_t *mtx, int *timeout_msp) {
rd_ts_t pre = rd_clock();
int r;
r = cnd_timedwait_ms(cnd, mtx, *timeout_msp);
if (r != thrd_timedout) {
/* Subtract spent time */
(*timeout_msp) -= (int)(rd_clock() - pre) / 1000;
}
return r;
}
int cnd_timedwait_abs(cnd_t *cnd, mtx_t *mtx, const struct timespec *tspec) {
if (tspec->tv_sec == RD_POLL_INFINITE)
return cnd_wait(cnd, mtx);
else if (tspec->tv_sec == RD_POLL_NOWAIT)
return thrd_timedout;
return cnd_timedwait(cnd, mtx, tspec);
}
/**
* @name Read-write locks
* @{
*/
#ifndef _WIN32
int rwlock_init(rwlock_t *rwl) {
int r = pthread_rwlock_init(rwl, NULL);
if (r) {
errno = r;
return thrd_error;
}
return thrd_success;
}
int rwlock_destroy(rwlock_t *rwl) {
int r = pthread_rwlock_destroy(rwl);
if (r) {
errno = r;
return thrd_error;
}
return thrd_success;
}
int rwlock_rdlock(rwlock_t *rwl) {
int r = pthread_rwlock_rdlock(rwl);
assert(r == 0);
return thrd_success;
}
int rwlock_wrlock(rwlock_t *rwl) {
int r = pthread_rwlock_wrlock(rwl);
assert(r == 0);
return thrd_success;
}
int rwlock_rdunlock(rwlock_t *rwl) {
int r = pthread_rwlock_unlock(rwl);
assert(r == 0);
return thrd_success;
}
int rwlock_wrunlock(rwlock_t *rwl) {
int r = pthread_rwlock_unlock(rwl);
assert(r == 0);
return thrd_success;
}
/**@}*/
#endif /* !_MSC_VER */
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