Re: [libvirt] [PATCH 4/9] qemuBuildVhostuserCommandLine: Reuse qemuBuildChrChardevStr
On 08/16/2016 11:41 AM, Michal Privoznik wrote:
There's no need to reinvent the wheel here. We already have a
function to format virDomainChrSourceDefPtr. It's called
qemuBuildChrChardevStr(). Use that instead of some dummy
virBufferAsprintf().
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
src/qemu/qemu_command.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index c419ecf..59fcb4c 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7848,7 +7848,7 @@ qemuBuildVhostuserCommandLine(virCommandPtr cmd,
virQEMUCapsPtr qemuCaps,
unsigned int bootindex)
{
- virBuffer chardev_buf = VIR_BUFFER_INITIALIZER;
+ char *chardev = NULL;
virBuffer netdev_buf = VIR_BUFFER_INITIALIZER;
unsigned int queues = net->driver.virtio.queues;
char *nic = NULL;
@@ -7861,9 +7861,10 @@ qemuBuildVhostuserCommandLine(virCommandPtr cmd,
switch ((virDomainChrType) net->data.vhostuser->type) {
case VIR_DOMAIN_CHR_TYPE_UNIX:
- virBufferAsprintf(&chardev_buf, "socket,id=char%s,path=%s%s",
- net->info.alias, net->data.vhostuser->data.nix.path,
- net->data.vhostuser->data.nix.listen ?
",server" : "");
+ if (!(chardev = qemuBuildChrChardevStr(NULL, NULL, NULL, def,
logManager == NULL?
cmd == NULL?
cfg == NULL?
if (dev->logfile) code will surely have problems (as will the TLS code)
While true your narrow usage could avoid the TLS code that's going to
dereference cfg without doing the obligatory "cfg &&", I'm still
not
clear how it would avoid the dev->logfile code.
Shouldn't this support that logManager anyway? If not, then perhaps it
needs to be more explicit. IOW: Extra checks.
John
+
net->data.vhostuser,
+ net->info.alias, qemuCaps, false)))
+ goto error;
break;
case VIR_DOMAIN_CHR_TYPE_NULL:
@@ -7881,7 +7882,7 @@ qemuBuildVhostuserCommandLine(virCommandPtr cmd,
case VIR_DOMAIN_CHR_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("vhost-user type '%s' not supported"),
- virDomainChrTypeToString(net->data.vhostuser->type));
+ virDomainChrTypeToString(net->data.vhostuser->type));
goto error;
}
@@ -7899,7 +7900,8 @@ qemuBuildVhostuserCommandLine(virCommandPtr cmd,
}
virCommandAddArg(cmd, "-chardev");
- virCommandAddArgBuffer(cmd, &chardev_buf);
+ virCommandAddArg(cmd, chardev);
+ VIR_FREE(chardev);
virCommandAddArg(cmd, "-netdev");
virCommandAddArgBuffer(cmd, &netdev_buf);
@@ -7917,7 +7919,7 @@ qemuBuildVhostuserCommandLine(virCommandPtr cmd,
return 0;
error:
- virBufferFreeAndReset(&chardev_buf);
+ VIR_FREE(chardev);
virBufferFreeAndReset(&netdev_buf);
VIR_FREE(nic);