#include "lttng-events.h"
#include "lttng-tracer.h"
+static struct lttng_transport lttng_relay_transport;
+
struct metadata_packet_header {
uint32_t magic; /* 0x75D11D57 */
uint8_t uuid[16]; /* Unique Universal Identifier */
{
}
+static int client_timestamp_begin(const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *buf, uint64_t *timestamp_begin)
+{
+ return -ENOSYS;
+}
+
+static int client_timestamp_end(const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *timestamp_end)
+{
+ return -ENOSYS;
+}
+
+static int client_events_discarded(const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *events_discarded)
+{
+ return -ENOSYS;
+}
+
+static int client_current_timestamp(const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *ts)
+{
+ return -ENOSYS;
+}
+
+static int client_content_size(const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *content_size)
+{
+ return -ENOSYS;
+}
+
+static int client_packet_size(const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *packet_size)
+{
+ return -ENOSYS;
+}
+
+static int client_stream_id(const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *stream_id)
+{
+ return -ENOSYS;
+}
+
static const struct lib_ring_buffer_config client_config = {
.cb.ring_buffer_clock_read = client_ring_buffer_clock_read,
.cb.record_header_size = client_record_header_size,
.wakeup = RING_BUFFER_WAKEUP_BY_TIMER,
};
+static
+void release_priv_ops(void *priv_ops)
+{
+ module_put(THIS_MODULE);
+}
+
+static
+void lttng_channel_destroy(struct channel *chan)
+{
+ channel_destroy(chan);
+}
+
static
struct channel *_channel_create(const char *name,
struct lttng_channel *lttng_chan, void *buf_addr,
unsigned int switch_timer_interval,
unsigned int read_timer_interval)
{
- return channel_create(&client_config, name, lttng_chan, buf_addr,
+ struct channel *chan;
+
+ chan = channel_create(&client_config, name, lttng_chan, buf_addr,
subbuf_size, num_subbuf, switch_timer_interval,
read_timer_interval);
-}
+ if (chan) {
+ /*
+ * Ensure this module is not unloaded before we finish
+ * using lttng_relay_transport.ops.
+ */
+ if (!try_module_get(THIS_MODULE)) {
+ printk(KERN_WARNING "LTT : Can't lock transport module.\n");
+ goto error;
+ }
+ chan->backend.priv_ops = <tng_relay_transport.ops;
+ chan->backend.release_priv_ops = release_priv_ops;
+ }
+ return chan;
-static
-void lttng_channel_destroy(struct channel *chan)
-{
- channel_destroy(chan);
+error:
+ lttng_channel_destroy(chan);
+ return NULL;
}
static
.get_hp_wait_queue = lttng_get_hp_wait_queue,
.is_finalized = lttng_is_finalized,
.is_disabled = lttng_is_disabled,
+ .timestamp_begin = client_timestamp_begin,
+ .timestamp_end = client_timestamp_end,
+ .events_discarded = client_events_discarded,
+ .content_size = client_content_size,
+ .packet_size = client_packet_size,
+ .stream_id = client_stream_id,
+ .current_timestamp = client_current_timestamp,
},
};