detectors/slsDetectorPackage
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maliakal_d 2020-07-17 07:19:19 +02:00
parent c6921bf954
commit a3062a5e00
2 changed files with 20 additions and 20 deletions
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22
slsDetectorServers/slsDetectorServer/src/sharedMemory.c
View File

@ -2,11 +2,11 @@
#include "clogger.h" #include "clogger.h"
#include <errno.h> #include <errno.h>
#include <pthread.h>
#include <string.h> #include <string.h>
#include <sys/ipc.h> #include <sys/ipc.h>
#include <sys/shm.h> #include <sys/shm.h>
#include <unistd.h> #include <unistd.h>
#include <pthread.h>
#define SHM_NAME "sls_server_shared_memory" #define SHM_NAME "sls_server_shared_memory"
#define SHM_VERSION 0x200625 #define SHM_VERSION 0x200625
@ -46,24 +46,23 @@ void sharedMemory_print() {
int sharedMemory_create(int port) { int sharedMemory_create(int port) {
// if shm existed, delete old shm and create again // if shm existed, delete old shm and create again
shmFd = shmFd = shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | IPC_EXCL | 0666);
shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | IPC_EXCL | 0666);
if (shmFd == -1 && errno == EEXIST) { if (shmFd == -1 && errno == EEXIST) {
// open existing one // open existing one
shmFd = shmget(SHM_KEY + port, MEM_SIZE, shmFd = shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | 0666);
IPC_CREAT | 0666);
if (shmFd == -1) { if (shmFd == -1) {
LOG(logERROR, ("c: open existing shared memory (to delete) failed: %s\n", strerror(errno))); LOG(logERROR,
("c: open existing shared memory (to delete) failed: %s\n",
strerror(errno)));
return FAIL; return FAIL;
} }
// delete existing one // delete existing one
sharedMemory_remove(); sharedMemory_remove();
LOG(logWARNING, LOG(logWARNING, ("Removed old shared memory with id 0x%x (%d)\n",
("Removed old shared memory with id 0x%x (%d)\n", SHM_KEY + port, SHM_KEY + port)); SHM_KEY + port, SHM_KEY + port));
// create it again with current structure // create it again with current structure
shmFd = shmget(SHM_KEY + port, MEM_SIZE, shmFd = shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | IPC_EXCL | 0666);
IPC_CREAT | IPC_EXCL | 0666);
} }
if (shmFd == -1) { if (shmFd == -1) {
LOG(logERROR, ("Create shared memory failed: %s\n", strerror(errno))); LOG(logERROR, ("Create shared memory failed: %s\n", strerror(errno)));
@ -82,7 +81,8 @@ int sharedMemory_create(int port) {
int sharedMemory_initialize() { int sharedMemory_initialize() {
shm->version = SHM_VERSION; shm->version = SHM_VERSION;
if (pthread_mutex_init(&(shm->lock), NULL) != 0) { if (pthread_mutex_init(&(shm->lock), NULL) != 0) {
LOG(logERROR, ("Failed to initialize pthread lock for shared memory\n")); LOG(logERROR,
("Failed to initialize pthread lock for shared memory\n"));
return FAIL; return FAIL;
} }
shm->scanStatus = IDLE; shm->scanStatus = IDLE;

4
slsDetectorServers/slsDetectorServer/src/slsDetectorServer.c
View File

@ -109,8 +109,8 @@ int main(int argc, char *argv[]) {
struct sigaction sa; struct sigaction sa;
sa.sa_flags = 0; // no flags sa.sa_flags = 0; // no flags
sa.sa_handler = sigInterruptHandler; // handler function sa.sa_handler = sigInterruptHandler; // handler function
sigemptyset(&sa.sa_mask); // dont block additional signals during invocation sigemptyset(&sa.sa_mask); // dont block additional signals during
// of handler // invocation of handler
if (sigaction(SIGINT, &sa, NULL) == -1) { if (sigaction(SIGINT, &sa, NULL) == -1) {
LOG(logERROR, ("Could not set handler function for SIGINT")); LOG(logERROR, ("Could not set handler function for SIGINT"));
} }