diff options
Diffstat (limited to 'include/migration/qemu-file.h')
| -rw-r--r-- | include/migration/qemu-file.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index 3f6b4ed581..5909ff06f0 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -28,7 +28,8 @@ /* This function writes a chunk of data to a file at the given position. * The pos argument can be ignored if the file is only being used for - * streaming. The handler should try to write all of the data it can. + * streaming. The handler must write all of the data or return a negative + * errno value. */ typedef ssize_t (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf, int64_t pos, size_t size); @@ -54,7 +55,8 @@ typedef int (QEMUFileCloseFunc)(void *opaque); typedef int (QEMUFileGetFD)(void *opaque); /* - * This function writes an iovec to file. + * This function writes an iovec to file. The handler must write all + * of the data or return a negative errno value. */ typedef ssize_t (QEMUFileWritevBufferFunc)(void *opaque, struct iovec *iov, int iovcnt, int64_t pos); |