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| author | Eduardo Habkost <ehabkost@redhat.com> | 2011-11-10 10:41:40 -0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2011-12-12 11:47:19 -0600 |
| commit | 90d8454ed0ffdec3871053b696e4a44f349e561c (patch) | |
| tree | 4ade66ed7ba98fd1c047f9ed8e94c0b9034ed298 | |
| parent | c29110d515babdff1f777189a84993b77722cd8f (diff) | |
| download | focaccia-qemu-90d8454ed0ffdec3871053b696e4a44f349e561c.tar.gz focaccia-qemu-90d8454ed0ffdec3871053b696e4a44f349e561c.zip | |
QEMUFileCloseFunc: add return value documentation (v2)
qemu_fclose() and QEMUFile->close will return -errno on error, and any positive value on success. We need the positive non-zero success values because migration-exec.c:exec_close() relies on non-zero return values to get the process exit code. Changes v1 -> v2: - Cosmetic spelling change on comment text Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| -rw-r--r-- | hw/hw.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/hw.h b/hw/hw.h index ed20f5a27a..efa04d1340 100644 --- a/hw/hw.h +++ b/hw/hw.h @@ -27,7 +27,13 @@ typedef int (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf, typedef int (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf, int64_t pos, int size); -/* Close a file and return an error code */ +/* Close a file + * + * Return negative error number on error, 0 or positive value on success. + * + * The meaning of return value on success depends on the specific back-end being + * used. + */ typedef int (QEMUFileCloseFunc)(void *opaque); /* Called to determine if the file has exceeded it's bandwidth allocation. The |