diff options
| author | Max Reitz <mreitz@redhat.com> | 2018-05-09 21:42:59 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2018-06-11 16:18:45 +0200 |
| commit | b32d7a39af488d280ce5f02a2ed94871d696f87a (patch) | |
| tree | 8c2782e7a13f9d46066b5720223f82923b8eb0d5 /include/qemu-io.h | |
| parent | b444d0e9d1ae323fed1ef7c35a359ce064f36b32 (diff) | |
qemu-io: Let command functions return error code
This is basically what everything else in the qemu code base does, so we
can do it here, too.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'include/qemu-io.h')
| -rw-r--r-- | include/qemu-io.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/include/qemu-io.h b/include/qemu-io.h index 06cdfbf660..7433239372 100644 --- a/include/qemu-io.h +++ b/include/qemu-io.h @@ -22,7 +22,12 @@ #define CMD_FLAG_GLOBAL ((int)0x80000000) /* don't iterate "args" */ -typedef void (*cfunc_t)(BlockBackend *blk, int argc, char **argv); +/* Implement a qemu-io command. + * Operate on @blk using @argc/@argv as the command's arguments, and + * return 0 on success or negative errno on failure. + */ +typedef int (*cfunc_t)(BlockBackend *blk, int argc, char **argv); + typedef void (*helpfunc_t)(void); typedef struct cmdinfo { @@ -41,7 +46,7 @@ typedef struct cmdinfo { extern bool qemuio_misalign; -void qemuio_command(BlockBackend *blk, const char *cmd); +int qemuio_command(BlockBackend *blk, const char *cmd); void qemuio_add_command(const cmdinfo_t *ci); void qemuio_command_usage(const cmdinfo_t *ci); |