Separate qemu_pidfile() into OS specific versions

[qemu.git] / os-win32.c

diff --git a/os-win32.c b/os-win32.c
index 3c6f50fa9470ded15dc8a8380bdc154dd76d8733..566d5e985352467b250396e0236a20e0647af2b0 100644 (file)
--- a/os-win32.c
+++ b/os-win32.c
@@ -240,3 +240,27 @@ void os_pidfile_error(void)
 {
     fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
 }
+
+int qemu_create_pidfile(const char *filename)
+{
+    char buffer[128];
+    int len;
+    HANDLE file;
+    OVERLAPPED overlap;
+    BOOL ret;
+    memset(&overlap, 0, sizeof(overlap));
+
+    file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL,
+                     OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+
+    if (file == INVALID_HANDLE_VALUE) {
+        return -1;
+    }
+    len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid());
+    ret = WriteFileEx(file, (LPCVOID)buffer, (DWORD)len,
+                     &overlap, NULL);
+    if (ret == 0) {
+        return -1;
+    }
+    return 0;
+}