[libvirt] [PATCH v5 11/36] qemu_process: Collect monitor code in single function
Jiri Denemark
jdenemar at redhat.com
Thu Jan 3 14:19:05 UTC 2019
On Sun, Dec 02, 2018 at 23:10:05 -0600, Chris Venteicher wrote:
> qemuMonitor code lives in qemuProcessQmpConnectMonitor rather than in
> qemuProcessQmpNew and qemuProcessQmpLaunch.
>
> This is consistent with existing structure in qemu_process.c where
> qemuConnectMonitor function contains monitor code for domain process
> activation.
>
> Simple code moves in this patch. Improvements in later patch.
>
> Only intended functional change in this patch is we don't
> move (include) code to initiate process stop on failure to create monitor.
>
> As comments in qemuProcessQmpStart say... Client must always call
> qemuProcessStop and qemuProcessQmpFree, even in error cases.
>
> Signed-off-by: Chris Venteicher <cventeic at redhat.com>
> ---
> src/qemu/qemu_process.c | 50 ++++++++++++++++++++---------------------
> 1 file changed, 24 insertions(+), 26 deletions(-)
>
> diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
> index 938d328235..a688be7f2c 100644
> --- a/src/qemu/qemu_process.c
> +++ b/src/qemu/qemu_process.c
> @@ -8163,10 +8163,6 @@ qemuProcessQmpNew(const char *binary,
>
> virPidFileForceCleanupPath(proc->pidfile);
>
> - proc->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
> - proc->config.data.nix.path = proc->monpath;
> - proc->config.data.nix.listen = false;
> -
> return proc;
>
> error:
> @@ -8198,7 +8194,6 @@ qemuProcessQmpInit(qemuProcessQmpPtr proc)
> static int
> qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
> {
> - virDomainXMLOptionPtr xmlopt = NULL;
> const char *machine;
> int ret = -1;
>
> @@ -8250,6 +8245,28 @@ qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
> goto cleanup;
> }
>
> + ret = 0;
> +
> + cleanup:
> + return ret;
> +}
> +
> +
> +/* Connect Monitor to QEMU Process
> + */
> +static int
> +qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
> +{
> + int ret = -1;
> + virDomainXMLOptionPtr xmlopt = NULL;
> +
> + VIR_DEBUG("proc=%p, emulator=%s, proc->pid=%lld",
> + proc, NULLSTR(proc->binary), (long long)proc->pid);
> +
> + proc->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
> + proc->config.data.nix.path = proc->monpath;
> + proc->config.data.nix.listen = false;
> +
> if (!(xmlopt = virDomainXMLOptionNew(NULL, NULL, NULL, NULL, NULL)) ||
> !(proc->vm = virDomainObjNew(xmlopt)))
> goto cleanup;
> @@ -8257,7 +8274,7 @@ qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
> proc->vm->pid = proc->pid;
>
> if (!(proc->mon = qemuMonitorOpen(proc->vm, &proc->config, true, true,
> - 0, &callbacks, NULL)))
> + 0, &callbacks, NULL)))
> goto cleanup;
>
> virObjectLock(proc->mon);
This hunk belongs to the patch which renamed cmd as proc.
> @@ -8265,27 +8282,8 @@ qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
> ret = 0;
>
> cleanup:
> - if (!proc->mon)
> - qemuProcessQmpStop(proc);
> + VIR_DEBUG("ret=%i", ret);
> virObjectUnref(xmlopt);
> -
> - return ret;
> -}
> -
> -
> -/* Connect Monitor to QEMU Process
> - */
> -static int
> -qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
> -{
> - int ret = -1;
> -
> - VIR_DEBUG("proc=%p, emulator=%s, proc->pid=%lld",
> - proc, NULLSTR(proc->binary), (long long)proc->pid);
> -
> - ret = 0;
> -
> - VIR_DEBUG("ret=%i", ret);
> return ret;
> }
Looks OK otherwise.
Jirka
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