[06/13] oslib: support futimens() if available

Commit Message

Greg Kurz June 27, 2016, 9:41 a.m. UTC

Signed-off-by: Greg Kurz <[e-mail]>
---
 hw/9pfs/9p-handle.c       |    7 +------
 include/sysemu/os-posix.h |    1 +
 util/oslib-posix.c        |   10 ++++++++++
 3 files changed, 12 insertions(+), 6 deletions(-)

Patch

diff --git a/hw/9pfs/9p-handle.c b/hw/9pfs/9p-handle.c
index e48e48a7145d..197c2c7efbb5 100644
--- a/hw/9pfs/9p-handle.c
+++ b/hw/9pfs/9p-handle.c
@@ -388,7 +388,6 @@  static int handle_utimensat(FsContext *ctx, V9fsPath *fs_path,
                             const struct timespec *buf)
 {
     int ret;
-#ifdef CONFIG_UTIMENSAT
     int fd;
     struct handle_data *data = (struct handle_data *)ctx->private;
 
@@ -396,12 +395,8 @@  static int handle_utimensat(FsContext *ctx, V9fsPath *fs_path,
     if (fd < 0) {
         return fd;
     }
-    ret = futimens(fd, buf);
+    ret = qemu_futimens(fd, buf);
     close(fd);
-#else
-    ret = -1;
-    errno = ENOSYS;
-#endif
     return ret;
 }
 
diff --git a/include/sysemu/os-posix.h b/include/sysemu/os-posix.h
index 9c7dfdfbec69..c2b2288bb3bf 100644
--- a/include/sysemu/os-posix.h
+++ b/include/sysemu/os-posix.h
@@ -57,6 +57,7 @@  typedef struct timeval qemu_timeval;
 #endif
 typedef struct timespec qemu_timespec;
 int qemu_utimens(const char *path, const qemu_timespec *times);
+int qemu_futimens(int fd, const qemu_timespec *times);
 
 bool is_daemonized(void);
 
diff --git a/util/oslib-posix.c b/util/oslib-posix.c
index e2e1d4d39f59..3c9de4ad1d71 100644
--- a/util/oslib-posix.c
+++ b/util/oslib-posix.c
@@ -187,6 +187,16 @@  int qemu_pipe(int pipefd[2])
     return ret;
 }
 
+int qemu_futimens(int fd, const struct timespec *times)
+{
+#ifdef CONFIG_UTIMENSAT
+    return futimens(fd, times);
+#else
+    errno = ENOSYS;
+    return -1;
+#endif
+}
+
 int qemu_utimens(const char *path, const struct timespec *times)
 {
     struct timeval tv[2], tv_now;