From ce39ee3184a02eca7f9529cc19b1582f6f704c70 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 22 Feb 2013 17:36:37 +0100 Subject: qemu-file: fsync a writable stdio QEMUFile This is what fd_close does. Prepare for switching to a QEMUFile. Reviewed-by: Orit Wasserman Reviewed-by: Juan Quintela Signed-off-by: Paolo Bonzini Signed-off-by: Juan Quintela --- savevm.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'savevm.c') diff --git a/savevm.c b/savevm.c index 38699de4a3..1d49fde68b 100644 --- a/savevm.c +++ b/savevm.c @@ -256,6 +256,24 @@ static int stdio_fclose(void *opaque) { QEMUFileStdio *s = opaque; int ret = 0; + + if (s->file->ops->put_buffer) { + int fd = fileno(s->stdio_file); + struct stat st; + + ret = fstat(fd, &st); + if (ret == 0 && S_ISREG(st.st_mode)) { + /* + * If the file handle is a regular file make sure the + * data is flushed to disk before signaling success. + */ + ret = fsync(fd); + if (ret != 0) { + ret = -errno; + return ret; + } + } + } if (fclose(s->stdio_file) == EOF) { ret = -errno; } -- cgit v1.2.1