Fix a bug of invalid parameter for shm_open on macOS26

Author: treefrogframework

src/tsharedmemory_unix.cpp

@@ -112,23 +112,33 @@ bool TSharedMemory::attach()
     }
 
     struct stat st;
+    int flags = 0;
 
-    _fd = shm_open(qUtf8Printable(_name), O_RDWR | O_CLOEXEC, S_IRUSR | S_IWUSR);
+    _fd = shm_open(qUtf8Printable(_name), O_RDWR, S_IRUSR | S_IWUSR);
     if (_fd < 0) {
         if (errno != ENOENT) {
             // error
+            tSystemError("SharedMemory shm_open error.  name:{} errno:{} [{}:{}]", _name, errno, __FILE__, __LINE__);
             goto error;
         }
     }
 
+    flags = fcntl(_fd, F_GETFD);
+    if (flags < 0 || fcntl(_fd, F_SETFD, flags | FD_CLOEXEC) < 0) {
+        tSystemError("SharedMemory fcntl error.  name:{} errno:{} [{}:{}]", _name, errno, __FILE__, __LINE__);
+        goto error;
+    }
+
     if (fstat(_fd, &st) < 0) {
         // error
+        tSystemError("SharedMemory fstat error.  name:{} errno:{} [{}:{}]", _name, errno, __FILE__, __LINE__);
         goto error;
     }
 
     _ptr = mmap(nullptr, st.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, _fd, 0);
     if (_ptr == MAP_FAILED) {
         // error
+        tSystemError("SharedMemory mmap error.  name:{} errno:{} [{}:{}]", _name, errno, __FILE__, __LINE__);
         goto error;
     }
 
@@ -137,8 +147,6 @@ bool TSharedMemory::attach()
     return true;
 
 error:
-    tSystemError("SharedMemory attach error  [{}:{}]", __FILE__, __LINE__);
-
     if (_fd > 0) {
         tf_close(_fd);
         _fd = 0;