diff options
| -rw-r--r-- | os-posix.c | 21 | ||||
| -rw-r--r-- | os-win32.c | 24 | ||||
| -rw-r--r-- | osdep.c | 38 |
3 files changed, 45 insertions, 38 deletions
diff --git a/os-posix.c b/os-posix.c index 612b641737..38c29d1afe 100644 --- a/os-posix.c +++ b/os-posix.c @@ -361,3 +361,24 @@ int qemu_eventfd(int fds[2]) return qemu_pipe(fds); } + +int qemu_create_pidfile(const char *filename) +{ + char buffer[128]; + int len; + int fd; + + fd = qemu_open(filename, O_RDWR | O_CREAT, 0600); + if (fd == -1) { + return -1; + } + if (lockf(fd, F_TLOCK, 0) == -1) { + return -1; + } + len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid()); + if (write(fd, buffer, len) != len) { + return -1; + } + + return 0; +} diff --git a/os-win32.c b/os-win32.c index 3c6f50fa94..566d5e9853 100644 --- 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; +} @@ -73,44 +73,6 @@ int qemu_madvise(void *addr, size_t len, int advice) #endif } -int qemu_create_pidfile(const char *filename) -{ - char buffer[128]; - int len; -#ifndef _WIN32 - int fd; - - fd = qemu_open(filename, O_RDWR | O_CREAT, 0600); - if (fd == -1) - return -1; - - if (lockf(fd, F_TLOCK, 0) == -1) - return -1; - - len = snprintf(buffer, sizeof(buffer), "%ld\n", (long)getpid()); - if (write(fd, buffer, len) != len) - return -1; -#else - 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; -#endif - return 0; -} - /* * Opens a file with FD_CLOEXEC set |