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replaced pthread_mutex_t with sem_t

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This commit is contained in:
maliakal_d 2020-09-18 11:30:04 +02:00
parent e91420bd16
commit 539c0c295b
1 changed files with 11 additions and 13 deletions
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24
slsDetectorServers/slsDetectorServer/src/sharedMemory.c
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@ -2,7 +2,7 @@
#include "clogger.h"
#include <errno.h>
#include <pthread.h>
#include <semaphore.h>
#include <string.h>
#include <sys/ipc.h>
#include <sys/shm.h>
@ -19,9 +19,9 @@
typedef struct Memory {
int version;
pthread_mutex_t lockStatus;
sem_t semStatus;
#ifdef EIGERD
pthread_mutex_t lockLocalLink;
sem_t semLocalLink;
#endif
enum runStatus scanStatus; // idle, running or error
int scanStop;
@ -87,14 +87,14 @@ int sharedMemory_create(int port) {
int sharedMemory_initialize() {
shm->version = SHM_VERSION;
if (pthread_mutex_init(&(shm->lockStatus), NULL) != 0) {
LOG(logERROR, ("Failed to initialize pthread_mutex_t lockStatus for "
if (sem_init(&(shm->semStatus), 1, 1) != 0) {
LOG(logERROR, ("Failed to initialize semaphore semStatus for "
"shared memory\n"));
return FAIL;
}
#ifdef EIGERD
if (pthread_mutex_init(&(shm->lockLocalLink), NULL) != 0) {
LOG(logERROR, ("Failed to initialize pthread_mutex_t lockLocalLink for "
if (sem_init(&(shm->semLocalLink), 1, 1) != 0) {
LOG(logERROR, ("Failed to initialize semaphore semLocalLink for "
"shared memory\n"));
return FAIL;
}
@ -155,9 +155,9 @@ int sharedMemory_remove() {
return OK;
}
void sharedMemory_lockStatus() { pthread_mutex_lock(&(shm->lockStatus)); }
void sharedMemory_lockStatus() { sem_wait(&(shm->semStatus)); }
void sharedMemory_unlockStatus() { pthread_mutex_unlock(&(shm->lockStatus)); }
void sharedMemory_unlockStatus() { sem_post(&(shm->semStatus)); }
#ifdef VIRTUAL
void sharedMemory_setStatus(enum runStatus s) {
@ -218,9 +218,7 @@ int sharedMemory_getScanStop() {
}
#ifdef EIGERD
void sharedMemory_lockLocalLink() { pthread_mutex_lock(&(shm->lockLocalLink)); }
void sharedMemory_lockLocalLink() { sem_wait(&(shm->semLocalLink)); }
void sharedMemory_unlockLocalLink() {
pthread_mutex_unlock(&(shm->lockLocalLink));
}
void sharedMemory_unlockLocalLink() { sem_post(&(shm->semLocalLink)); }
#endif