return -1;
#else
HANDLE file;
- DWORD flags;
OVERLAPPED overlap;
BOOL ret;
+ memset(&overlap, 0, sizeof(overlap));
- /* Open for writing with no sharing. */
- file = CreateFile(filename, GENERIC_WRITE, 0, NULL,
+ file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (file == INVALID_HANDLE_VALUE)
return -1;
- flags = LOCKFILE_EXCLUSIVE_LOCK | LOCKFILE_FAIL_IMMEDIATELY;
- overlap.hEvent = 0;
- /* Lock 1 byte. */
- ret = LockFileEx(file, flags, 0, 0, 1, &overlap);
- if (ret == 0)
- return -1;
-
- /* Write PID to file. */
len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid());
ret = WriteFileEx(file, (LPCVOID)buffer, (DWORD)len,
&overlap, NULL);
#ifdef CONFIG_PIPE2
ret = pipe2(pipefd, O_CLOEXEC);
-#else
+ if (ret != -1 || errno != ENOSYS) {
+ return ret;
+ }
+#endif
ret = pipe(pipefd);
if (ret == 0) {
qemu_set_cloexec(pipefd[0]);
qemu_set_cloexec(pipefd[1]);
}
-#endif
return ret;
}
#ifdef SOCK_CLOEXEC
ret = socket(domain, type | SOCK_CLOEXEC, protocol);
-#else
+ if (ret != -1 || errno != EINVAL) {
+ return ret;
+ }
+#endif
ret = socket(domain, type, protocol);
if (ret >= 0) {
qemu_set_cloexec(ret);
}
-#endif
return ret;
}
#ifdef CONFIG_ACCEPT4
ret = accept4(s, addr, addrlen, SOCK_CLOEXEC);
-#else
+ if (ret != -1 || errno != EINVAL) {
+ return ret;
+ }
+#endif
ret = accept(s, addr, addrlen);
if (ret >= 0) {
qemu_set_cloexec(ret);
}
-#endif
return ret;
}