dd

deanlee · May 29, 2024 · f1399c4 · f1399c4
1 parent 5129757
commit f1399c4
Showing 1 changed file with 5 additions and 5 deletions.
diff --git a/messaging/msgq.cc b/messaging/msgq.cc
@@ -32,9 +32,9 @@ SharedMemory::SharedMemory(const std::string &name, size_t size) :shm_name(name)
   shm_ptr = mmap(0, shm_size, PROT_READ | PROT_WRITE, MAP_SHARED, shm_fd, 0);
   assert(shm_ptr != MAP_FAILED);
 
-  // sem_t *sem = sem_open(SEMAPHORE_NAME, O_CREAT, 0644, 1);
-  // assert(sem != SEM_FAILED);
-  // sem_wait(sem);  // Lock semaphore
+  sem_t *sem = sem_open(SEMAPHORE_NAME, O_CREAT, 0644, 1);
+  assert(sem != SEM_FAILED);
+  sem_wait(sem);  // Lock semaphore
   header = (SharedMemoryHeader *)shm_ptr;
 
   /*
@@ -71,8 +71,8 @@ SharedMemory::SharedMemory(const std::string &name, size_t size) :shm_name(name)
   } else {
     printf("initialized\n");
   }
-  // sem_post(sem);  // Unlock semaphore
-  // sem_close(sem);
+  sem_post(sem);  // Unlock semaphore
+  sem_close(sem);
 }
 
 SharedMemory::~SharedMemory() {