slsDetectorSoftware: Sharedmemory removed private methodf or removeshm, removed static isexisting as the usecases are all member method

slsDetectorSoftware/multiSlsDetector/multiSlsDetector.cpp

@@ -621,8 +621,8 @@ void multiSlsDetector::freeSharedMemory(int multiId) {
 	int numDetectors = 0;
 	SharedMemory* shm = new SharedMemory(multiId, -1);
 
-	// shm not created before
-	if (SharedMemory::IsExisting(shm->GetName())) {
+	// get number of detectors from multi shm
+	if (shm->IsExisting()) {
 		sharedMultiSlsDetector* mdet = (sharedMultiSlsDetector*)shm->OpenSharedMemory(
 				sizeof(sharedMultiSlsDetector));
 		numDetectors = mdet->numberOfDetectors;
@@ -715,7 +715,7 @@ bool multiSlsDetector::initSharedMemory(bool verify) {
 
 	bool created = false;
 	sharedMemory = new SharedMemory(detId, -1);
-	if (SharedMemory::IsExisting(sharedMemory->GetName())) {
+	if (sharedMemory->IsExisting()) {
 		thisMultiDetector = (sharedMultiSlsDetector*)sharedMemory->OpenSharedMemory(sz);
 		if (verify && thisMultiDetector->shmversion != MULTI_SHMVERSION) {
 			cprintf(RED, "Multi shared memory (%d) version mismatch "

slsDetectorSoftware/sharedMemory/SharedMemory.cpp

@@ -28,13 +28,13 @@ SharedMemory::~SharedMemory(){
 }
 
 
-bool SharedMemory::IsExisting(std::string name) {
+bool SharedMemory::IsExisting() {
     bool ret = true;
-    int fd = shm_open(name.c_str(), O_RDWR, 0);
-    if ((fd < 0) && (errno == ENOENT)) {
+    int tempfd = shm_open(name.c_str(), O_RDWR, 0);
+    if ((tempfd < 0) && (errno == ENOENT)) {
        ret = false;
     }
-    close(fd);
+    close(tempfd);
     return ret;
 }
 
@@ -61,7 +61,9 @@ void* SharedMemory::CreateSharedMemory(size_t sz){
     }
 
     // map
-    return MapSharedMemory(sz);
+    void* addr = MapSharedMemory(sz);
+    printf("Shared memory created %s \n", name.c_str());
+    return addr;
 }
 
 void* SharedMemory::OpenSharedMemory(size_t sz){
@@ -87,7 +89,15 @@ void SharedMemory::UnmapSharedMemory(void* addr) {
 }
 
 void SharedMemory::RemoveSharedMemory() {
-	RemoveSharedMemory(name.c_str());
+    if (shm_unlink(name.c_str()) < 0) {
+        // silent exit if shm did not exist anyway
+        if (errno == ENOENT)
+            return;
+        cprintf(RED, "Error: Free Shared Memory %s Failed: %s\n",
+        		name.c_str(), strerror(errno));
+        throw SharedMemoryException();
+    }
+    printf("Shared memory deleted %s \n", name.c_str());
 }
 
 
@@ -146,15 +156,3 @@ int SharedMemory::VerifySizeMatch(size_t expectedSize) {
     return 0;
 }
 
-void SharedMemory::RemoveSharedMemory(std::string name) {
-    if (shm_unlink(name.c_str()) < 0) {
-        // silent exit if shm did not exist anyway
-        if (errno == ENOENT)
-            return;
-        cprintf(RED, "Error: Free Shared Memory %s Failed: %s\n",
-        		name.c_str(), strerror(errno));
-        throw SharedMemoryException();
-    }
-    printf("Shared memory deleted %s \n", name.c_str());
-}
-

slsDetectorSoftware/sharedMemory/SharedMemory.h

@@ -31,7 +31,7 @@ public:
      * @param name of shared memory
      * @return true if exists, else false
      */
-    static bool IsExisting(std::string name);
+    bool IsExisting();
 
 	/**
 	 * Get shared memory name
@@ -93,12 +93,6 @@ private:
      */
     int VerifySizeMatch(size_t expectedSize);
 
-    /**
-     * Remove existing Shared memory
-     * @param name name of shared memory (should be less than NAME_MAX)
-     */
-	void RemoveSharedMemory(std::string name);
-
 	/** Shared memory name */
 	std::string name;
 

slsDetectorSoftware/slsDetector/slsDetector.cpp

@@ -46,7 +46,7 @@ slsDetector::slsDetector(detectorType type, int multiId, int id, bool verify, mu
 
 	// ensure shared memory was not created before
 	SharedMemory* shm = new SharedMemory(multiId, id);
-	if (SharedMemory::IsExisting(shm->GetName())) {
+	if (shm->IsExisting()) {
 		cprintf(YELLOW BOLD,"Warning: Weird, this shared memory should have been "
 				"deleted before! %s. Freeing it again.\n", shm->GetName().c_str());
 		freeSharedMemory(multiId, id);
@@ -1250,7 +1250,7 @@ int  slsDetector::receiveModule(sls_detector_module* myMod) {
 slsReceiverDefs::detectorType slsDetector::getDetectorTypeFromShm(int multiId, bool verify) {
 	SharedMemory* shm = new SharedMemory(multiId, detId);
 	// shm not created before
-	if (!SharedMemory::IsExisting(shm->GetName())) {
+	if (!shm->IsExisting()) {
 		cprintf(RED,"Shared memory %s does not exist.\n"
 				"Corrupted Multi Shared memory. Please free shared memory.\n",
 				shm->GetName().c_str());