From 40687eb741a974c47326ef3cf7f6b25cc0680552 Mon Sep 17 00:00:00 2001 From: Peter Xu Date: Wed, 20 Jun 2018 15:32:18 +0800 Subject: [PATCH] monitor: rename *_pop_one to *_pop_any The old names are confusing since both of the old functions are popping an item from multiple queues rather than a single queue. In that sense, *_pop_any() suites better than *_pop_one(). Since at it, touch up the function monitor_qmp_response_pop_any() a bit to let the callers pass in a QMPResponse struct instead of returning a struct. Change the return value to boolean to mark whether we have popped a valid response instead. Suggested-by: Markus Armbruster Reviewed-by: Markus Armbruster Signed-off-by: Peter Xu Message-Id: <20180620073223.31964-3-peterx@redhat.com> Signed-off-by: Markus Armbruster --- monitor.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) diff --git a/monitor.c b/monitor.c index 7b473aad1f..2881345758 100644 --- a/monitor.c +++ b/monitor.c @@ -542,10 +542,10 @@ struct QMPResponse { typedef struct QMPResponse QMPResponse; /* - * Return one QMPResponse. The response is only valid if - * response.data is not NULL. + * Pop a QMPResponse from any monitor's response queue into @response. + * Return false if all the queues are empty; else true. */ -static QMPResponse monitor_qmp_response_pop_one(void) +static bool monitor_qmp_response_pop_any(QMPResponse *response) { Monitor *mon; QObject *data = NULL; @@ -556,22 +556,20 @@ static QMPResponse monitor_qmp_response_pop_one(void) data = g_queue_pop_head(mon->qmp.qmp_responses); qemu_mutex_unlock(&mon->qmp.qmp_queue_lock); if (data) { + response->mon = mon; + response->data = data; break; } } qemu_mutex_unlock(&monitor_lock); - return (QMPResponse) { .mon = mon, .data = data }; + return data != NULL; } static void monitor_qmp_bh_responder(void *opaque) { QMPResponse response; - while (true) { - response = monitor_qmp_response_pop_one(); - if (!response.data) { - break; - } + while (monitor_qmp_response_pop_any(&response)) { monitor_json_emitter_raw(response.mon, response.data); qobject_unref(response.data); } @@ -4199,7 +4197,7 @@ static void monitor_qmp_dispatch_one(QMPRequest *req_obj) * when we process one request on a specific monitor, we put that * monitor to the end of mon_list queue. */ -static QMPRequest *monitor_qmp_requests_pop_one(void) +static QMPRequest *monitor_qmp_requests_pop_any(void) { QMPRequest *req_obj = NULL; Monitor *mon; @@ -4231,7 +4229,7 @@ static QMPRequest *monitor_qmp_requests_pop_one(void) static void monitor_qmp_bh_dispatcher(void *data) { - QMPRequest *req_obj = monitor_qmp_requests_pop_one(); + QMPRequest *req_obj = monitor_qmp_requests_pop_any(); if (req_obj) { trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj->id) ?: "");