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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28
slsDetectorServers/slsDetectorServer/src/sharedMemory.c
View File

@ -2,11 +2,11 @@
#include "clogger.h"
#include <errno.h>
#include <pthread.h>
#include <string.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <unistd.h>
#include <pthread.h>
#define SHM_NAME "sls_server_shared_memory"
#define SHM_VERSION 0x200625
@ -46,24 +46,23 @@ void sharedMemory_print() {
int sharedMemory_create(int port) {
// if shm existed, delete old shm and create again
shmFd =
shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | IPC_EXCL | 0666);
shmFd = shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | IPC_EXCL | 0666);
if (shmFd == -1 && errno == EEXIST) {
// open existing one
shmFd = shmget(SHM_KEY + port, MEM_SIZE,
IPC_CREAT | 0666);
shmFd = shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | 0666);
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;
}
// delete existing one
sharedMemory_remove();
LOG(logWARNING,
("Removed old shared memory with id 0x%x (%d)\n", SHM_KEY + port, SHM_KEY + port));
LOG(logWARNING, ("Removed old shared memory with id 0x%x (%d)\n",
SHM_KEY + port, SHM_KEY + port));
// create it again with current structure
shmFd = shmget(SHM_KEY + port, MEM_SIZE,
IPC_CREAT | IPC_EXCL | 0666);
shmFd = shmget(SHM_KEY + port, MEM_SIZE, IPC_CREAT | IPC_EXCL | 0666);
}
if (shmFd == -1) {
LOG(logERROR, ("Create shared memory failed: %s\n", strerror(errno)));
@ -81,10 +80,11 @@ int sharedMemory_create(int port) {
int sharedMemory_initialize() {
shm->version = SHM_VERSION;
if (pthread_mutex_init(&(shm->lock), NULL) != 0) {
LOG(logERROR, ("Failed to initialize pthread lock for shared memory\n"));
if (pthread_mutex_init(&(shm->lock), NULL) != 0) {
LOG(logERROR,
("Failed to initialize pthread lock for shared memory\n"));
return FAIL;
}
}
shm->scanStatus = IDLE;
shm->scanStop = 0;
#ifdef VIRTUAL

12
slsDetectorServers/slsDetectorServer/src/slsDetectorServer.c
View File

@ -29,7 +29,7 @@ extern int phaseShift;
void error(char *msg) { perror(msg); }
void sigInterruptHandler(int p) {
void sigInterruptHandler(int p) {
sharedMemory_remove();
exit(-1);
}
@ -107,12 +107,12 @@ int main(int argc, char *argv[]) {
// Catch signal SIGINT to destroy shm properly
struct sigaction sa;
sa.sa_flags = 0;// no flags
sa.sa_handler = sigInterruptHandler;// handler function
sigemptyset(&sa.sa_mask); // dont block additional signals during invocation
// of handler
sa.sa_flags = 0; // no flags
sa.sa_handler = sigInterruptHandler; // handler function
sigemptyset(&sa.sa_mask); // dont block additional signals during
// invocation of handler
if (sigaction(SIGINT, &sa, NULL) == -1) {
LOG(logERROR,("Could not set handler function for SIGINT"));
LOG(logERROR, ("Could not set handler function for SIGINT"));
}
if (sharedMemory_create(portno) == FAIL) {