Add flush buffers command

[lttng-ust.git] / libust / ltt-ring-buffer-metadata-client.h

diff --git a/libust/ltt-ring-buffer-metadata-client.h b/libust/ltt-ring-buffer-metadata-client.h
index 302e020ef579604380e3f004d22d40f76227b610..4415ab667657a2153faad17156d4ec6ec962f507 100644 (file)
--- a/libust/ltt-ring-buffer-metadata-client.h
+++ b/libust/ltt-ring-buffer-metadata-client.h
@@ -269,6 +269,21 @@ int ltt_is_disabled(struct channel *chan)
        return lib_ring_buffer_channel_is_disabled(chan);
 }
 
+static
+int ltt_flush_buffers(struct channel *chan, struct shm_handle *handle)
+{
+       struct lib_ring_buffer *buf;
+       int shm_fd, wait_fd;
+       uint64_t memory_map_size;
+
+       buf = channel_get_ring_buffer(&client_config, chan,
+                       0, handle, &shm_fd, &wait_fd,
+                       &memory_map_size);
+       lib_ring_buffer_switch(&client_config, buf,
+                       SWITCH_ACTIVE, handle);
+       return 0;
+}
+
 static struct ltt_transport ltt_relay_transport = {
        .name = "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap",
        .ops = {
@@ -284,6 +299,7 @@ static struct ltt_transport ltt_relay_transport = {
                //.get_hp_wait_queue = ltt_get_hp_wait_queue,
                .is_finalized = ltt_is_finalized,
                .is_disabled = ltt_is_disabled,
+               .flush_buffers = ltt_flush_buffers,
        },
 };