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authorDaniel P. Berrange <berrange@redhat.com>2016-09-30 11:50:18 +0100
committerDaniel P. Berrange <berrange@redhat.com>2016-10-27 09:13:10 +0200
commit20f4aa265ec8442be66f00ee3986a92018b44b7b (patch)
tree96a7f441c86c1c286f083571ab7dc27160b068f1 /io/channel.c
parentaf8096b2c3b16de3f6237f1ead6a657a7565272f (diff)
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io: add ability to set a name for IO channels
The GSource object has ability to have a name, which is useful when debugging performance problems with the mainloop event callbacks that take too long. By associating a name with a QIOChannel object, we can then set the name on any GSource associated with the channel. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'io/channel.c')
-rw-r--r--io/channel.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/io/channel.c b/io/channel.c
index d1f1ae5..80924c1 100644
--- a/io/channel.c
+++ b/io/channel.c
@@ -37,6 +37,14 @@ void qio_channel_set_feature(QIOChannel *ioc,
}
+void qio_channel_set_name(QIOChannel *ioc,
+ const char *name)
+{
+ g_free(ioc->name);
+ ioc->name = g_strdup(name);
+}
+
+
ssize_t qio_channel_readv_full(QIOChannel *ioc,
const struct iovec *iov,
size_t niov,
@@ -136,7 +144,13 @@ GSource *qio_channel_create_watch(QIOChannel *ioc,
GIOCondition condition)
{
QIOChannelClass *klass = QIO_CHANNEL_GET_CLASS(ioc);
- return klass->io_create_watch(ioc, condition);
+ GSource *ret = klass->io_create_watch(ioc, condition);
+
+ if (ioc->name) {
+ g_source_set_name(ret, ioc->name);
+ }
+
+ return ret;
}
@@ -282,24 +296,24 @@ void qio_channel_wait(QIOChannel *ioc,
}
-#ifdef _WIN32
static void qio_channel_finalize(Object *obj)
{
QIOChannel *ioc = QIO_CHANNEL(obj);
+ g_free(ioc->name);
+
+#ifdef _WIN32
if (ioc->event) {
CloseHandle(ioc->event);
}
-}
#endif
+}
static const TypeInfo qio_channel_info = {
.parent = TYPE_OBJECT,
.name = TYPE_QIO_CHANNEL,
.instance_size = sizeof(QIOChannel),
-#ifdef _WIN32
.instance_finalize = qio_channel_finalize,
-#endif
.abstract = true,
.class_size = sizeof(QIOChannelClass),
};