This fixes a potential crash where on a sequence like this:
Thread 0: Check if queue is not empty.
Thread 1: Remove item from queue, making it empty.
Thread 0: Do something assuming queue is not empty.
CC: 10.5 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
pipe_screen *screen = device().pipe;
pipe_fence_handle *fence = NULL;
+ std::lock_guard<std::mutex> lock(queued_events_mutex);
if (!queued_events.empty()) {
pipe->flush(pipe, &fence, 0);
void
command_queue::sequence(hard_event &ev) {
+ std::lock_guard<std::mutex> lock(queued_events_mutex);
if (!queued_events.empty())
queued_events.back()().chain(ev);
#define CLOVER_CORE_QUEUE_HPP
#include <deque>
+#include <mutex>
#include "core/object.hpp"
#include "core/context.hpp"
cl_command_queue_properties props;
pipe_context *pipe;
+ std::mutex queued_events_mutex;
std::deque<intrusive_ref<hard_event>> queued_events;
};
}