[libvirt PATCH v2 1/6] qemu_alias: introduce qemuDomainGetVhostUserAlias helper

[Pavel Hrdina <phrdina@xxxxxxxxxx>]

Signed-off-by: Pavel Hrdina <phrdina@xxxxxxxxxx>
Reviewed-by: Ján Tomko <jtomko@xxxxxxxxxx>
Reviewed-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---

Changes in v2:
    - qemuDomainGetVhostUserAlias renamed to qemuDomainGetVhostUserChrAlias

 src/qemu/qemu_alias.c   | 6 ++++++
 src/qemu/qemu_alias.h   | 2 ++
 src/qemu/qemu_command.c | 8 +++++---
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_alias.c b/src/qemu/qemu_alias.c
index b3492d6e85..1c6f04c0ba 100644
--- a/src/qemu/qemu_alias.c
+++ b/src/qemu/qemu_alias.c
@@ -868,3 +868,9 @@ qemuDomainGetDBusVMStateAlias(void)
 {
     return "dbus-vmstate0";
 }
+
+char *
+qemuDomainGetVhostUserChrAlias(const char *devalias)
+{
+    return g_strdup_printf("chr-vu-%s", devalias);
+}
diff --git a/src/qemu/qemu_alias.h b/src/qemu/qemu_alias.h
index 239747beb1..fc4bdf35fa 100644
--- a/src/qemu/qemu_alias.h
+++ b/src/qemu/qemu_alias.h
@@ -97,3 +97,5 @@ const char *qemuDomainGetManagedPRAlias(void);
 char *qemuDomainGetUnmanagedPRAlias(const char *parentalias);
 
 const char *qemuDomainGetDBusVMStateAlias(void);
+
+char *qemuDomainGetVhostUserChrAlias(const char *devalias);
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index f742379919..c30e5a6c83 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -2174,7 +2174,7 @@ qemuBuildVHostUserFsCommandLine(virCommandPtr cmd,
     g_autofree char *chardev_alias = NULL;
     g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER;
 
-    chardev_alias = g_strdup_printf("chr-vu-%s", fs->info.alias);
+    chardev_alias = qemuDomainGetVhostUserChrAlias(fs->info.alias);
 
     virCommandAddArg(cmd, "-chardev");
     virBufferAddLit(&opt, "socket");
@@ -4168,9 +4168,10 @@ qemuBuildDeviceVideoStr(const virDomainDef *def,
                 virBufferAsprintf(&buf, ",max_outputs=%u", video->heads);
         }
     } else if (video->backend == VIR_DOMAIN_VIDEO_BACKEND_TYPE_VHOSTUSER) {
+        g_autofree char *alias = qemuDomainGetVhostUserChrAlias(video->info.alias);
         if (video->heads)
             virBufferAsprintf(&buf, ",max_outputs=%u", video->heads);
-        virBufferAsprintf(&buf, ",chardev=chr-vu-%s", video->info.alias);
+        virBufferAsprintf(&buf, ",chardev=%s", alias);
     } else if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO) {
         if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_GPU_MAX_OUTPUTS)) {
             if (video->heads)
@@ -4290,6 +4291,7 @@ qemuBuildVhostUserChardevStr(const char *alias,
                              int *fd,
                              virCommandPtr cmd)
 {
+    g_autofree char *chardev_alias = qemuDomainGetVhostUserChrAlias(alias);
     char *chardev = NULL;
 
     if (*fd == -1) {
@@ -4298,7 +4300,7 @@ qemuBuildVhostUserChardevStr(const char *alias,
         return NULL;
     }
 
-    chardev = g_strdup_printf("socket,id=chr-vu-%s,fd=%d", alias, *fd);
+    chardev = g_strdup_printf("socket,id=%s,fd=%d", chardev_alias, *fd);
 
     virCommandPassFD(cmd, *fd, VIR_COMMAND_PASS_FD_CLOSE_PARENT);
     *fd = -1;
-- 
2.29.2