[Libguestfs] [PATCH] lib: qemu: use guestfs_int_version_from_x_y for qemu version parsing
Richard W.M. Jones
rjones at redhat.com
Thu May 26 15:50:03 UTC 2016
On Thu, May 26, 2016 at 05:40:09PM +0200, Pino Toscano wrote:
> Make use of the common version code, and avoid a separate regexp.
> ---
> src/qemu.c | 22 ++--------------------
> 1 file changed, 2 insertions(+), 20 deletions(-)
>
> diff --git a/src/qemu.c b/src/qemu.c
> index 11bf5cf..844c3f0 100644
> --- a/src/qemu.c
> +++ b/src/qemu.c
> @@ -37,16 +37,12 @@
>
> #include <libxml/uri.h>
>
> -#include <pcre.h>
> -
> #include "ignore-value.h"
>
> #include "guestfs.h"
> #include "guestfs-internal.h"
> #include "guestfs_protocol.h"
>
> -COMPILE_REGEXP (re_major_minor, "(\\d+)\\.(\\d+)", 0)
> -
> struct qemu_data {
> char *qemu_help; /* Output of qemu -help. */
> char *qemu_devices; /* Output of qemu -device ? */
> @@ -265,29 +261,15 @@ static void
> parse_qemu_version (guestfs_h *g, const char *qemu_help,
> struct version *qemu_version)
> {
> - CLEANUP_FREE char *major_s = NULL, *minor_s = NULL;
> - int major_i, minor_i;
> -
> version_init_null (qemu_version);
>
> - if (!match2 (g, qemu_help, re_major_minor, &major_s, &minor_s)) {
> - parse_failed:
> + if (guestfs_int_version_from_x_y (g, qemu_version, qemu_help) < 1) {
> debug (g, "%s: failed to parse qemu version string from the first line of the output of '%s -help'. When reporting this bug please include the -help output.",
> __func__, g->hv);
> return;
> }
>
> - major_i = guestfs_int_parse_unsigned_int (g, major_s);
> - if (major_i == -1)
> - goto parse_failed;
> -
> - minor_i = guestfs_int_parse_unsigned_int (g, minor_s);
> - if (minor_i == -1)
> - goto parse_failed;
> -
> - guestfs_int_version_from_values (qemu_version, major_i, minor_i, 0);
> -
> - debug (g, "qemu version %d.%d", major_i, minor_i);
> + debug (g, "qemu version %d.%d", qemu_version->v_major, qemu_version->v_minor);
> }
>
> static void
> --
> 2.5.5
ACK.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-builder quickly builds VMs from scratch
http://libguestfs.org/virt-builder.1.html
More information about the Libguestfs
mailing list