@@ -79,6 +79,7 @@ typedef gboolean (*QIOChannelFunc)(QIOChannel *ioc,
struct QIOChannel {
Object parent;
unsigned int features; /* bitmask of QIOChannelFeatures */
+ char *name;
#ifdef _WIN32
HANDLE event; /* For use with GSource on Win32 */
#endif
@@ -159,6 +160,18 @@ void qio_channel_set_feature(QIOChannel *ioc,
QIOChannelFeature feature);
/**
+ * qio_channel_set_name:
+ * @ioc: the channel object
+ * @name: the name of the channel
+ *
+ * Sets the name of the channel, which serves as an aid
+ * to debugging. The name is used when creating GSource
+ * watches for this channel.
+ */
+void qio_channel_set_name(QIOChannel *ioc,
+ const char *name);
+
+/**
* qio_channel_readv_full:
* @ioc: the channel object
* @iov: the array of memory regions to read data into
@@ -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),
};
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 an QIOChannel object, we can then set the name on any GSource associated with the channel. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> --- include/io/channel.h | 13 +++++++++++++ io/channel.c | 24 +++++++++++++++++++----- 2 files changed, 32 insertions(+), 5 deletions(-)