#include <lttng/ust-events.h>
#include "lttng/bitfield.h"
#include "clock.h"
-#include "lttng-ust-uuid.h"
#include "lttng-tracer.h"
#include "../libringbuffer/frontend_types.h"
if (caa_likely(!ctx))
return 0;
+ offset += lib_ring_buffer_align(offset, ctx->largest_align);
for (i = 0; i < ctx->nr_fields; i++)
offset += ctx->fields[i].get_size(offset);
return offset - orig_offset;
if (caa_likely(!ctx))
return;
+ lib_ring_buffer_align_ctx(bufctx, ctx->largest_align);
for (i = 0; i < ctx->nr_fields; i++)
ctx->fields[i].record(&ctx->fields[i], bufctx, chan);
}
}
#include "../libringbuffer/api.h"
+#include "lttng-rb-clients.h"
static
void lttng_write_event_header_slow(const struct lttng_ust_lib_ring_buffer_config *config,
{
}
+static struct packet_header *client_packet_header(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle)
+{
+ return lib_ring_buffer_read_offset_address(&buf->backend, 0, handle);
+}
+
+static int client_timestamp_begin(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
+ uint64_t *timestamp_begin)
+{
+ struct packet_header *header;
+
+ header = client_packet_header(buf, handle);
+ *timestamp_begin = header->ctx.timestamp_begin;
+ return 0;
+}
+
+static int client_timestamp_end(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
+ uint64_t *timestamp_end)
+{
+ struct packet_header *header;
+
+ header = client_packet_header(buf, handle);
+ *timestamp_end = header->ctx.timestamp_end;
+ return 0;
+}
+
+static int client_events_discarded(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
+ uint64_t *events_discarded)
+{
+ struct packet_header *header;
+
+ header = client_packet_header(buf, handle);
+ *events_discarded = header->ctx.events_discarded;
+ return 0;
+}
+
+static int client_content_size(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
+ uint64_t *content_size)
+{
+ struct packet_header *header;
+
+ header = client_packet_header(buf, handle);
+ *content_size = header->ctx.content_size;
+ return 0;
+}
+
+static int client_packet_size(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
+ uint64_t *packet_size)
+{
+ struct packet_header *header;
+
+ header = client_packet_header(buf, handle);
+ *packet_size = header->ctx.packet_size;
+ return 0;
+}
+
+static int client_stream_id(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
+ uint64_t *stream_id)
+{
+ struct packet_header *header;
+
+ header = client_packet_header(buf, handle);
+ *stream_id = header->stream_id;
+ return 0;
+}
+
+static int client_current_timestamp(struct lttng_ust_lib_ring_buffer *buf,
+ struct lttng_ust_shm_handle *handle,
+ uint64_t *ts)
+{
+ struct channel *chan;
+
+ chan = shmp(handle, handle->chan);
+ *ts = client_ring_buffer_clock_read(chan);
+
+ return 0;
+}
+
+static const
+struct lttng_ust_client_lib_ring_buffer_client_cb client_cb = {
+ .parent = {
+ .ring_buffer_clock_read = client_ring_buffer_clock_read,
+ .record_header_size = client_record_header_size,
+ .subbuffer_header_size = client_packet_header_size,
+ .buffer_begin = client_buffer_begin,
+ .buffer_end = client_buffer_end,
+ .buffer_create = client_buffer_create,
+ .buffer_finalize = client_buffer_finalize,
+ },
+ .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,
+};
+
static const struct lttng_ust_lib_ring_buffer_config client_config = {
.cb.ring_buffer_clock_read = client_ring_buffer_clock_read,
.cb.record_header_size = client_record_header_size,
.output = RING_BUFFER_MMAP,
.oops = RING_BUFFER_OOPS_CONSISTENCY,
.ipi = RING_BUFFER_NO_IPI_BARRIER,
- .wakeup = RING_BUFFER_WAKEUP_BY_WRITER,
+ .wakeup = LTTNG_CLIENT_WAKEUP,
.client_type = LTTNG_CLIENT_TYPE,
+
+ .cb_ptr = &client_cb.parent,
};
-const struct lttng_ust_lib_ring_buffer_client_cb *LTTNG_CLIENT_CALLBACKS = &client_config.cb;
+const struct lttng_ust_client_lib_ring_buffer_client_cb *LTTNG_CLIENT_CALLBACKS = &client_cb;
static
struct lttng_channel *_channel_create(const char *name,
size_t subbuf_size, size_t num_subbuf,
unsigned int switch_timer_interval,
unsigned int read_timer_interval,
- int **shm_fd, int **wait_fd,
- uint64_t **memory_map_size,
- struct lttng_channel *chan_priv_init)
+ unsigned char *uuid,
+ uint32_t chan_id)
{
- void *priv;
- struct lttng_channel *lttng_chan = NULL;
+ struct lttng_channel chan_priv_init;
struct lttng_ust_shm_handle *handle;
+ struct lttng_channel *lttng_chan;
+ void *priv;
+ memset(&chan_priv_init, 0, sizeof(chan_priv_init));
+ memcpy(chan_priv_init.uuid, uuid, LTTNG_UST_UUID_LEN);
+ chan_priv_init.id = chan_id;
handle = channel_create(&client_config, name,
- &priv, __alignof__(*lttng_chan), sizeof(*lttng_chan),
- chan_priv_init,
+ &priv, __alignof__(struct lttng_channel),
+ sizeof(struct lttng_channel),
+ &chan_priv_init,
buf_addr, subbuf_size, num_subbuf,
- switch_timer_interval, read_timer_interval,
- shm_fd, wait_fd, memory_map_size);
+ switch_timer_interval, read_timer_interval);
if (!handle)
return NULL;
lttng_chan = priv;
lttng_chan->handle = handle;
- lttng_chan->chan = shmp(lttng_chan->handle, lttng_chan->handle->chan);
+ lttng_chan->chan = shmp(handle, handle->chan);
return lttng_chan;
}
static
-void lttng_channel_destroy(struct lttng_channel *lttng_chan)
-{
- channel_destroy(lttng_chan->chan, lttng_chan->handle, 0);
-}
-
-static
-struct lttng_ust_lib_ring_buffer *lttng_buffer_read_open(struct channel *chan,
- struct lttng_ust_shm_handle *handle,
- int **shm_fd, int **wait_fd,
- uint64_t **memory_map_size)
-{
- struct lttng_ust_lib_ring_buffer *buf;
- int cpu;
-
- for_each_channel_cpu(cpu, chan) {
- buf = channel_get_ring_buffer(&client_config, chan,
- cpu, handle, shm_fd, wait_fd,
- memory_map_size);
- if (!lib_ring_buffer_open_read(buf, handle, 0))
- return buf;
- }
- return NULL;
-}
-
-static
-void lttng_buffer_read_close(struct lttng_ust_lib_ring_buffer *buf,
- struct lttng_ust_shm_handle *handle)
+void lttng_channel_destroy(struct lttng_channel *chan)
{
- lib_ring_buffer_release_read(buf, handle, 0);
+ channel_destroy(chan->chan, chan->handle, 1);
}
static
lib_ring_buffer_write(&client_config, ctx, src, len);
}
+static
+void lttng_event_strcpy(struct lttng_ust_lib_ring_buffer_ctx *ctx, const char *src,
+ size_t len)
+{
+ lib_ring_buffer_strcpy(&client_config, ctx, src, len, '#');
+}
+
#if 0
static
wait_queue_head_t *lttng_get_reader_wait_queue(struct channel *chan)
int cpu;
for_each_channel_cpu(cpu, chan) {
- int *shm_fd, *wait_fd;
- uint64_t *memory_map_size;
+ int shm_fd, wait_fd, wakeup_fd;
+ uint64_t memory_map_size;
buf = channel_get_ring_buffer(&client_config, chan,
cpu, handle, &shm_fd, &wait_fd,
- &memory_map_size);
+ &wakeup_fd, &memory_map_size);
lib_ring_buffer_switch(&client_config, buf,
SWITCH_ACTIVE, handle);
}
.ops = {
.channel_create = _channel_create,
.channel_destroy = lttng_channel_destroy,
- .buffer_read_open = lttng_buffer_read_open,
- .buffer_read_close = lttng_buffer_read_close,
+ .u.has_strcpy = 1,
.event_reserve = lttng_event_reserve,
.event_commit = lttng_event_commit,
.event_write = lttng_event_write,
.is_finalized = lttng_is_finalized,
.is_disabled = lttng_is_disabled,
.flush_buffer = lttng_flush_buffer,
+ .event_strcpy = lttng_event_strcpy,
},
+ .client_config = &client_config,
};
void RING_BUFFER_MODE_TEMPLATE_INIT(void)
{
- DBG("LTT : ltt ring buffer client init\n");
+ DBG("LTT : ltt ring buffer client \"%s\" init\n",
+ "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap");
lttng_transport_register(<tng_relay_transport);
}
void RING_BUFFER_MODE_TEMPLATE_EXIT(void)
{
- DBG("LTT : ltt ring buffer client exit\n");
+ DBG("LTT : ltt ring buffer client \"%s\" exit\n",
+ "relay-" RING_BUFFER_MODE_TEMPLATE_STRING "-mmap");
lttng_transport_unregister(<tng_relay_transport);
}
projects / lttng-ust.git / blobdiff