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#include <string.h>
#include "log.h"
#include "pshared.h"
int cond_init_pshared(pthread_cond_t *cond)
{
pthread_condattr_t cattr;
int ret;
ret = pthread_condattr_init(&cattr);
if (ret) {
log_err("pthread_condattr_init: %s\n", strerror(ret));
return ret;
}
#ifdef CONFIG_PSHARED
ret = pthread_condattr_setpshared(&cattr, PTHREAD_PROCESS_SHARED);
if (ret) {
log_err("pthread_condattr_setpshared: %s\n", strerror(ret));
return ret;
}
#endif
#ifdef CONFIG_PTHREAD_CONDATTR_SETCLOCK
ret = pthread_condattr_setclock(&cattr, CLOCK_MONOTONIC);
if (ret) {
log_err("pthread_condattr_setclock: %s\n", strerror(ret));
return ret;
}
#endif
ret = pthread_cond_init(cond, &cattr);
if (ret) {
log_err("pthread_cond_init: %s\n", strerror(ret));
return ret;
}
return 0;
}
/*
* 'type' must be a mutex type, e.g. PTHREAD_MUTEX_NORMAL,
* PTHREAD_MUTEX_ERRORCHECK, PTHREAD_MUTEX_RECURSIVE or PTHREAD_MUTEX_DEFAULT.
*/
int mutex_init_pshared_with_type(pthread_mutex_t *mutex, int type)
{
pthread_mutexattr_t mattr;
int ret;
ret = pthread_mutexattr_init(&mattr);
if (ret) {
log_err("pthread_mutexattr_init: %s\n", strerror(ret));
return ret;
}
/*
* Not all platforms support process shared mutexes (NetBSD/OpenBSD)
*/
#ifdef CONFIG_PSHARED
ret = pthread_mutexattr_setpshared(&mattr, PTHREAD_PROCESS_SHARED);
if (ret) {
log_err("pthread_mutexattr_setpshared: %s\n", strerror(ret));
return ret;
}
#endif
ret = pthread_mutexattr_settype(&mattr, type);
if (ret) {
log_err("pthread_mutexattr_settype: %s\n", strerror(ret));
return ret;
}
ret = pthread_mutex_init(mutex, &mattr);
if (ret) {
log_err("pthread_mutex_init: %s\n", strerror(ret));
return ret;
}
pthread_mutexattr_destroy(&mattr);
return 0;
}
int mutex_init_pshared(pthread_mutex_t *mutex)
{
return mutex_init_pshared_with_type(mutex, PTHREAD_MUTEX_DEFAULT);
}
int mutex_cond_init_pshared(pthread_mutex_t *mutex, pthread_cond_t *cond)
{
int ret;
ret = mutex_init_pshared(mutex);
if (ret)
return ret;
ret = cond_init_pshared(cond);
if (ret)
return ret;
return 0;
}
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