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Lock.cpp
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Lock.cpp
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#include "Lock.h"
#include <assert.h>
#include <bits/time.h>
#include <sys/time.h>
#define CHECK(ret) ({ __typeof__ (ret) errnum = (ret); \
assert(errnum == 0); (void) errnum;})
namespace CommLib {
CMutexLock::CMutexLock() {
CHECK(pthread_mutex_init(&mutex_, NULL));
}
CMutexLock::~CMutexLock() {
CHECK(pthread_mutex_destroy(&mutex_));
}
void CMutexLock::Lock() {
CHECK(pthread_mutex_lock(&mutex_));
}
void CMutexLock::UnLock() {
CHECK(pthread_mutex_unlock(&mutex_));
}
bool CMutexLock::TryLock() {
return ( 0 == pthread_mutex_trylock(&mutex_));
}
CAutoLock::CAutoLock(CMutexLock& lock) : Lock_(lock) {
Lock_.Lock();
}
CAutoLock::~CAutoLock() {
Lock_.UnLock();
}
RwLock::RwLock() {
CHECK(pthread_rwlock_init(&rwlock_, NULL));
}
RwLock::~RwLock() {
CHECK(pthread_rwlock_destroy(&rwlock_));
}
void RwLock::RdLock() {
CHECK(pthread_rwlock_rdlock(&rwlock_));
}
void RwLock::WrLock() {
CHECK(pthread_rwlock_wrlock(&rwlock_));
}
void RwLock::UnLock() {
CHECK(pthread_rwlock_unlock(&rwlock_));
}
bool RwLock::TryRdLock() {
return ( 0 == pthread_rwlock_tryrdlock(&rwlock_));
}
bool RwLock::TryWrLock() {
return (0 == pthread_rwlock_trywrlock(&rwlock_));
}
Condition::Condition() {
CHECK(pthread_cond_init(&cond_, NULL));
}
Condition::~Condition() {
CHECK(pthread_cond_destroy(&cond_));
}
void Condition::Signal() {
CHECK(pthread_cond_signal(&cond_));
}
void Condition::Broadcast() {
CHECK(pthread_cond_broadcast(&cond_));
}
void Condition::Wait() {
CAutoLock al(Lock_);
CHECK(pthread_cond_wait(&cond_, &Lock_.GetMutex()));
}
int Condition::TimeWait(int sec) {
CAutoLock al(Lock_);
timeval now;
gettimeofday(&now, NULL);
timespec spec;
spec.tv_sec = now.tv_sec + sec;
spec.tv_nsec = now.tv_usec * 1000;
int iret = pthread_cond_timedwait(&cond_, &Lock_.GetMutex(), &spec);
return iret;
}
}