[libvirt] [PATCH] qemu: handle reconnect on chardev hotplug

ZhiPeng Lu posted 1 patch 6 years, 6 months ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/libvirt tags/patchew/1505181970-11467-1-git-send-email-lu.zhipeng@zte.com.cn
There is a newer version of this series
src/qemu/qemu_monitor_json.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
[libvirt] [PATCH] qemu: handle reconnect on chardev hotplug
Posted by ZhiPeng Lu 6 years, 6 months ago
The patch passes the reconnect timeout to QEMU by monitor on chardev hotplug.

Signed-off-by: ZhiPeng Lu <lu.zhipeng@zte.com.cn>
---
 src/qemu/qemu_monitor_json.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index df5fb7c..4169cd5 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -6444,6 +6444,17 @@ int qemuMonitorJSONGetTPMTypes(qemuMonitorPtr mon,
     return qemuMonitorJSONGetStringArray(mon, "query-tpm-types", tpmtypes);
 }
 
+static int
+qemuMonitorJSONBuildChrChardevReconnect(virJSONValuePtr object,
+                                        const virDomainChrSourceReconnectDef *def)
+{
+    int ret = 0;
+    if (def->enabled == VIR_TRISTATE_BOOL_YES) {
+        ret = virJSONValueObjectAppendNumberUint(object, "reconnect", def->timeout);
+    }
+    return ret;
+}
+
 static virJSONValuePtr
 qemuMonitorJSONAttachCharDevCommand(const char *chrID,
                                     const virDomainChrSourceDef *chr)
@@ -6508,6 +6519,10 @@ qemuMonitorJSONAttachCharDevCommand(const char *chrID,
             if (virJSONValueObjectAppendString(data, "tls-creds", tlsalias) < 0)
                 goto cleanup;
         }
+
+        if (qemuMonitorJSONBuildChrChardevReconnect(data, &chr->data.tcp.reconnect) < 0) {
+            goto cleanup;
+        }
         break;
 
     case VIR_DOMAIN_CHR_TYPE_UDP:
@@ -6545,6 +6560,10 @@ qemuMonitorJSONAttachCharDevCommand(const char *chrID,
         if (virJSONValueObjectAppendBoolean(data, "wait", false) < 0 ||
             virJSONValueObjectAppendBoolean(data, "server", chr->data.nix.listen) < 0)
             goto cleanup;
+
+        if (qemuMonitorJSONBuildChrChardevReconnect(data, &chr->data.nix.reconnect) < 0) {
+            goto cleanup;
+        }
         break;
 
     case VIR_DOMAIN_CHR_TYPE_SPICEVMC:
-- 
1.8.3.1

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Re: [libvirt] [PATCH] qemu: handle reconnect on chardev hotplug
Posted by Peter Krempa 6 years, 6 months ago
On Tue, Sep 12, 2017 at 10:06:10 +0800, ZhiPeng Lu wrote:
> The patch passes the reconnect timeout to QEMU by monitor on chardev hotplug.
> 
> Signed-off-by: ZhiPeng Lu <lu.zhipeng@zte.com.cn>
> ---
>  src/qemu/qemu_monitor_json.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
> index df5fb7c..4169cd5 100644
> --- a/src/qemu/qemu_monitor_json.c
> +++ b/src/qemu/qemu_monitor_json.c
> @@ -6444,6 +6444,17 @@ int qemuMonitorJSONGetTPMTypes(qemuMonitorPtr mon,
>      return qemuMonitorJSONGetStringArray(mon, "query-tpm-types", tpmtypes);
>  }
>  
> +static int
> +qemuMonitorJSONBuildChrChardevReconnect(virJSONValuePtr object,
> +                                        const virDomainChrSourceReconnectDef *def)
> +{
> +    int ret = 0;
> +    if (def->enabled == VIR_TRISTATE_BOOL_YES) {
> +        ret = virJSONValueObjectAppendNumberUint(object, "reconnect", def->timeout);
> +    }

Fails syntax check:


Curly brackets around single-line body:
src/qemu/qemu_monitor_json.c:6452-6454:
    if (def->enabled == VIR_TRISTATE_BOOL_YES) {
        ret = virJSONValueObjectAppendNumberUint(object, "reconnect", def->timeout);
    }
Curly brackets around single-line body:
src/qemu/qemu_monitor_json.c:6523-6525:
        if (qemuMonitorJSONBuildChrChardevReconnect(data, &chr->data.tcp.reconnect) < 0) {
            goto cleanup;
        }
Curly brackets around single-line body:
src/qemu/qemu_monitor_json.c:6564-6566:
        if (qemuMonitorJSONBuildChrChardevReconnect(data, &chr->data.nix.reconnect) < 0) {
            goto cleanup;
        }


http://libvirt.org/hacking.html#curly_braces

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