detectors/slsDetectorPackage
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maliakal_d
2020-07-01 20:00:36 +02:00
parent 3156e6f50e
commit a656668d73
13 changed files with 120 additions and 110 deletions
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30
slsDetectorServers/slsDetectorServer/src/sharedMemory.c
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@@ -24,13 +24,10 @@ typedef struct Memory {
} sharedMem;
sharedMem *shm = NULL;
char shmMess[MAX_STR_LENGTH];
int shmFd = -1;
extern int isControlServer;
char *sharedMemory_getError() { return shmMess; }
void sharedMemory_print() {
LOG(logINFO, ("%s Shared Memory:\n", isControlServer ? "c" : "s"));
LOG(logINFO,
@@ -42,8 +39,6 @@ void sharedMemory_print() {
}
int sharedMemory_create(int port) {
memset(shmMess, 0, MAX_STR_LENGTH);
// if sham existed, delete old shm and create again
shmFd =
shmget(SHM_KEY + port, sizeof(sharedMem), IPC_CREAT | IPC_EXCL | 0666);
@@ -58,8 +53,7 @@ int sharedMemory_create(int port) {
IPC_CREAT | IPC_EXCL | 0666);
}
if (shmFd == -1) {
sprintf(shmMess, "Create shared memory failed: %s\n", strerror(errno));
LOG(logERROR, (shmMess));
LOG(logERROR, ("Create shared memory failed: %s\n", strerror(errno)));
return FAIL;
}
LOG(logINFO, ("Shared memory created\n"));
@@ -81,21 +75,18 @@ void sharedMemory_initialize() {
}
int sharedMemory_open(int port) {
memset(shmMess, 0, MAX_STR_LENGTH);
shmFd = shmget(SHM_KEY + port, sizeof(sharedMem), 0666);
if (shmFd == -1) {
sprintf(shmMess, "Open shared memory failed: %s\n", strerror(errno));
LOG(logERROR, (shmMess));
LOG(logERROR, ("Open shared memory failed: %s\n", strerror(errno)));
return FAIL;
}
if (sharedMemory_attach() == FAIL) {
return FAIL;
}
if (shm->version != SHM_VERSION) {
sprintf(shmMess,
"Shared memory version 0x%x does not match! (expected: 0x%x)\n",
shm->version, SHM_VERSION);
LOG(logERROR, (shmMess));
LOG(logERROR,
("Shared memory version 0x%x does not match! (expected: 0x%x)\n",
shm->version, SHM_VERSION));
}
LOG(logINFO, ("Shared memory opened\n"));
return OK;
@@ -104,8 +95,7 @@ int sharedMemory_open(int port) {
int sharedMemory_attach() {
shm = (sharedMem *)shmat(shmFd, NULL, 0);
if (shm == (void *)-1) {
sprintf(shmMess, "could not attach: %s\n", strerror(errno));
LOG(logERROR, (shmMess));
LOG(logERROR, ("could not attach: %s\n", strerror(errno)));
return FAIL;
}
LOG(logINFO, ("Shared memory attached\n"));
@@ -113,10 +103,8 @@ int sharedMemory_attach() {
}
int sharedMemory_detach() {
memset(shmMess, 0, MAX_STR_LENGTH);
if (shmdt(shm) == -1) {
sprintf(shmMess, "could not detach: %s\n", strerror(errno));
LOG(logERROR, (shmMess));
LOG(logERROR, ("could not detach: %s\n", strerror(errno)));
return FAIL;
}
LOG(logINFO, ("Shared memory detached\n"));
@@ -124,10 +112,8 @@ int sharedMemory_detach() {
}
int sharedMemory_remove() {
memset(shmMess, 0, MAX_STR_LENGTH);
if (shmctl(shmFd, IPC_RMID, NULL) == -1) {
sprintf(shmMess, "could not remove: %s\n", strerror(errno));
LOG(logERROR, (shmMess));
LOG(logERROR, ("could not remove: %s\n", strerror(errno)));
return FAIL;
}
LOG(logINFO, ("Shared memory removed\n"));