#include <common/common.h>
#include <common/utils.h>
#include <common/compat/poll.h>
+#include <common/index/index.h>
#include <common/kernel-ctl/kernel-ctl.h>
#include <common/sessiond-comm/relayd.h>
#include <common/sessiond-comm/sessiond-comm.h>
#include <common/kernel-consumer/kernel-consumer.h>
#include <common/relayd/relayd.h>
#include <common/ust-consumer/ust-consumer.h>
+#include <common/consumer-timer.h>
#include "consumer.h"
#include "consumer-stream.h"
+#include "../bin/lttng-consumerd/health-consumerd.h"
struct lttng_consumer_global_data consumer_data = {
.stream_count = 0,
pthread_mutex_lock(&consumer_data.lock);
pthread_mutex_lock(&channel->lock);
- pthread_mutex_lock(&channel->timer_lock);
/* Delete streams that might have been left in the stream list. */
cds_list_for_each_entry_safe(stream, stmp, &channel->streams.head,
consumer_stream_destroy(stream, NULL);
}
+ if (channel->live_timer_enabled == 1) {
+ consumer_timer_live_stop(channel);
+ }
+
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
call_rcu(&channel->node.head, free_channel_rcu);
end:
- pthread_mutex_unlock(&channel->timer_lock);
pthread_mutex_unlock(&channel->lock);
pthread_mutex_unlock(&consumer_data.lock);
}
consumer_stream_destroy(stream, ht);
}
+/*
+ * XXX naming of del vs destroy is all mixed up.
+ */
+void consumer_del_stream_for_data(struct lttng_consumer_stream *stream)
+{
+ consumer_stream_destroy(stream, data_ht);
+}
+
+void consumer_del_stream_for_metadata(struct lttng_consumer_stream *stream)
+{
+ consumer_stream_destroy(stream, metadata_ht);
+}
+
struct lttng_consumer_stream *consumer_allocate_stream(uint64_t channel_key,
uint64_t stream_key,
enum lttng_consumer_stream_state state,
stream->key = stream_key;
stream->out_fd = -1;
stream->out_fd_offset = 0;
+ stream->output_written = 0;
stream->state = state;
stream->uid = uid;
stream->gid = gid;
stream->session_id = session_id;
stream->monitor = monitor;
stream->endpoint_status = CONSUMER_ENDPOINT_ACTIVE;
+ stream->index_fd = -1;
pthread_mutex_init(&stream->lock, NULL);
/* If channel is the metadata, flag this stream as metadata. */
stream->metadata_flag = 1;
/* Metadata is flat out. */
strncpy(stream->name, DEFAULT_METADATA_NAME, sizeof(stream->name));
+ /* Live rendez-vous point. */
+ pthread_cond_init(&stream->metadata_rdv, NULL);
+ pthread_mutex_init(&stream->metadata_rdv_lock, NULL);
} else {
/* Format stream name to <channel_name>_<cpu_number> */
ret = snprintf(stream->name, sizeof(stream->name), "%s_%d",
/*
* Add a stream to the global list protected by a mutex.
*/
-static int add_stream(struct lttng_consumer_stream *stream,
- struct lttng_ht *ht)
+int consumer_add_data_stream(struct lttng_consumer_stream *stream)
{
+ struct lttng_ht *ht = data_ht;
int ret = 0;
assert(stream);
return ret;
}
+void consumer_del_data_stream(struct lttng_consumer_stream *stream)
+{
+ consumer_del_stream(stream, data_ht);
+}
+
/*
* Add relayd socket to global consumer data hashtable. RCU read side lock MUST
* be acquired before calling this.
if (ret < 0) {
goto end;
}
+
uatomic_inc(&relayd->refcount);
stream->sent_to_relayd = 1;
} else {
uint64_t tracefile_size,
uint64_t tracefile_count,
uint64_t session_id_per_pid,
- unsigned int monitor)
+ unsigned int monitor,
+ unsigned int live_timer_interval)
{
struct lttng_consumer_channel *channel;
channel->tracefile_size = tracefile_size;
channel->tracefile_count = tracefile_count;
channel->monitor = monitor;
+ channel->live_timer_interval = live_timer_interval;
pthread_mutex_init(&channel->lock, NULL);
pthread_mutex_init(&channel->timer_lock, NULL);
ssize_t lttng_consumer_on_read_subbuffer_mmap(
struct lttng_consumer_local_data *ctx,
struct lttng_consumer_stream *stream, unsigned long len,
- unsigned long padding)
+ unsigned long padding,
+ struct lttng_packet_index *index)
{
unsigned long mmap_offset;
void *mmap_base;
if (stream->net_seq_idx != (uint64_t) -1ULL) {
relayd = consumer_find_relayd(stream->net_seq_idx);
if (relayd == NULL) {
+ ret = -EPIPE;
goto end;
}
}
case LTTNG_CONSUMER_KERNEL:
mmap_base = stream->mmap_base;
ret = kernctl_get_mmap_read_offset(stream->wait_fd, &mmap_offset);
+ if (ret != 0) {
+ PERROR("tracer ctl get_mmap_read_offset");
+ written = -errno;
+ goto end;
+ }
break;
case LTTNG_CONSUMER32_UST:
case LTTNG_CONSUMER64_UST:
mmap_base = lttng_ustctl_get_mmap_base(stream);
if (!mmap_base) {
ERR("read mmap get mmap base for stream %s", stream->name);
- written = -1;
+ written = -EPERM;
goto end;
}
ret = lttng_ustctl_get_mmap_read_offset(stream, &mmap_offset);
-
+ if (ret != 0) {
+ PERROR("tracer ctl get_mmap_read_offset");
+ written = ret;
+ goto end;
+ }
break;
default:
ERR("Unknown consumer_data type");
assert(0);
}
- if (ret != 0) {
- errno = -ret;
- PERROR("tracer ctl get_mmap_read_offset");
- written = ret;
- goto end;
- }
/* Handle stream on the relayd if the output is on the network */
if (relayd) {
ret = utils_rotate_stream_file(stream->chan->pathname,
stream->name, stream->chan->tracefile_size,
stream->chan->tracefile_count, stream->uid, stream->gid,
- stream->out_fd, &(stream->tracefile_count_current));
+ stream->out_fd, &(stream->tracefile_count_current),
+ &stream->out_fd);
if (ret < 0) {
ERR("Rotating output file");
goto end;
}
- outfd = stream->out_fd = ret;
+ outfd = stream->out_fd;
+
+ if (stream->index_fd >= 0) {
+ ret = index_create_file(stream->chan->pathname,
+ stream->name, stream->uid, stream->gid,
+ stream->chan->tracefile_size,
+ stream->tracefile_count_current);
+ if (ret < 0) {
+ goto end;
+ }
+ stream->index_fd = ret;
+ }
+
/* Reset current size because we just perform a rotation. */
stream->tracefile_size_current = 0;
+ stream->out_fd_offset = 0;
+ orig_offset = 0;
}
stream->tracefile_size_current += len;
+ if (index) {
+ index->offset = htobe64(stream->out_fd_offset);
+ }
}
while (len > 0) {
*/
DBG("Error in file write mmap");
if (written == 0) {
- written = ret;
+ written = -errno;
}
/* Socket operation failed. We consider the relayd dead */
if (errno == EPIPE || errno == EINVAL) {
SYNC_FILE_RANGE_WRITE);
stream->out_fd_offset += ret;
}
+ stream->output_written += ret;
written += ret;
}
lttng_consumer_sync_trace_file(stream, orig_offset);
ssize_t lttng_consumer_on_read_subbuffer_splice(
struct lttng_consumer_local_data *ctx,
struct lttng_consumer_stream *stream, unsigned long len,
- unsigned long padding)
+ unsigned long padding,
+ struct lttng_packet_index *index)
{
ssize_t ret = 0, written = 0, ret_splice = 0;
loff_t offset = 0;
if (stream->net_seq_idx != (uint64_t) -1ULL) {
relayd = consumer_find_relayd(stream->net_seq_idx);
if (relayd == NULL) {
+ ret = -EPIPE;
goto end;
}
}
ret = utils_rotate_stream_file(stream->chan->pathname,
stream->name, stream->chan->tracefile_size,
stream->chan->tracefile_count, stream->uid, stream->gid,
- stream->out_fd, &(stream->tracefile_count_current));
+ stream->out_fd, &(stream->tracefile_count_current),
+ &stream->out_fd);
if (ret < 0) {
ERR("Rotating output file");
goto end;
}
- outfd = stream->out_fd = ret;
+ outfd = stream->out_fd;
+
+ if (stream->index_fd >= 0) {
+ ret = index_create_file(stream->chan->pathname,
+ stream->name, stream->uid, stream->gid,
+ stream->chan->tracefile_size,
+ stream->tracefile_count_current);
+ if (ret < 0) {
+ goto end;
+ }
+ stream->index_fd = ret;
+ }
+
/* Reset current size because we just perform a rotation. */
stream->tracefile_size_current = 0;
+ stream->out_fd_offset = 0;
+ orig_offset = 0;
}
stream->tracefile_size_current += len;
+ index->offset = htobe64(stream->out_fd_offset);
}
while (len > 0) {
SYNC_FILE_RANGE_WRITE);
stream->out_fd_offset += ret_splice;
}
+ stream->output_written += ret_splice;
written += ret_splice;
}
lttng_consumer_sync_trace_file(stream, orig_offset);
pthread_mutex_lock(&consumer_data.lock);
pthread_mutex_lock(&stream->chan->lock);
- pthread_mutex_lock(&stream->chan->timer_lock);
pthread_mutex_lock(&stream->lock);
switch (consumer_data.type) {
end:
/*
* Nullify the stream reference so it is not used after deletion. The
- * consumer data lock MUST be acquired before being able to check for a
- * NULL pointer value.
+ * channel lock MUST be acquired before being able to check for
+ * a NULL pointer value.
*/
stream->chan->metadata_stream = NULL;
pthread_mutex_unlock(&stream->lock);
- pthread_mutex_unlock(&stream->chan->timer_lock);
pthread_mutex_unlock(&stream->chan->lock);
pthread_mutex_unlock(&consumer_data.lock);
* Action done with the metadata stream when adding it to the consumer internal
* data structures to handle it.
*/
-static int add_metadata_stream(struct lttng_consumer_stream *stream,
- struct lttng_ht *ht)
+int consumer_add_metadata_stream(struct lttng_consumer_stream *stream)
{
+ struct lttng_ht *ht = metadata_ht;
int ret = 0;
struct lttng_ht_iter iter;
struct lttng_ht_node_u64 *node;
*/
void *consumer_thread_metadata_poll(void *data)
{
- int ret, i, pollfd;
+ int ret, i, pollfd, err = -1;
uint32_t revents, nb_fd;
struct lttng_consumer_stream *stream = NULL;
struct lttng_ht_iter iter;
rcu_register_thread();
+ health_register(health_consumerd, HEALTH_CONSUMERD_TYPE_METADATA);
+
metadata_ht = lttng_ht_new(0, LTTNG_HT_TYPE_U64);
if (!metadata_ht) {
/* ENOMEM at this point. Better to bail out. */
while (1) {
/* Only the metadata pipe is set */
if (LTTNG_POLL_GETNB(&events) == 0 && consumer_quit == 1) {
+ err = 0; /* All is OK */
goto end;
}
revents = LTTNG_POLL_GETEV(&events, i);
pollfd = LTTNG_POLL_GETFD(&events, i);
- /* Just don't waste time if no returned events for the fd */
- if (!revents) {
- continue;
- }
-
if (pollfd == lttng_pipe_get_readfd(ctx->consumer_metadata_pipe)) {
if (revents & (LPOLLERR | LPOLLHUP )) {
DBG("Metadata thread pipe hung up");
pipe_len = lttng_pipe_read(ctx->consumer_metadata_pipe,
&stream, sizeof(stream));
if (pipe_len < 0) {
- ERR("read metadata stream, ret: %ld", pipe_len);
+ ERR("read metadata stream, ret: %zd", pipe_len);
/*
* Continue here to handle the rest of the streams.
*/
DBG("Adding metadata stream %d to poll set",
stream->wait_fd);
- ret = add_metadata_stream(stream, metadata_ht);
- if (ret) {
- ERR("Unable to add metadata stream");
- /* Stream was not setup properly. Continuing. */
- consumer_del_metadata_stream(stream, NULL);
- continue;
- }
-
/* Add metadata stream to the global poll events list */
lttng_poll_add(&events, stream->wait_fd,
LPOLLIN | LPOLLPRI);
}
}
+ /* All is OK */
+ err = 0;
error:
end:
DBG("Metadata poll thread exiting");
end_poll:
destroy_stream_ht(metadata_ht);
end_ht:
+ if (err) {
+ health_error();
+ ERR("Health error occurred in %s", __func__);
+ }
+ health_unregister(health_consumerd);
rcu_unregister_thread();
return NULL;
}
*/
void *consumer_thread_data_poll(void *data)
{
- int num_rdy, num_hup, high_prio, ret, i;
+ int num_rdy, num_hup, high_prio, ret, i, err = -1;
struct pollfd *pollfd = NULL;
/* local view of the streams */
struct lttng_consumer_stream **local_stream = NULL, *new_stream = NULL;
rcu_register_thread();
+ health_register(health_consumerd, HEALTH_CONSUMERD_TYPE_DATA);
+
data_ht = lttng_ht_new(0, LTTNG_HT_TYPE_U64);
if (data_ht == NULL) {
/* ENOMEM at this point. Better to bail out. */
/* No FDs and consumer_quit, consumer_cleanup the thread */
if (nb_fd == 0 && consumer_quit == 1) {
+ err = 0; /* All is OK */
goto end;
}
/* poll on the array of fds */
pipe_readlen = lttng_pipe_read(ctx->consumer_data_pipe,
&new_stream, sizeof(new_stream));
if (pipe_readlen < 0) {
- ERR("Consumer data pipe ret %ld", pipe_readlen);
+ ERR("Consumer data pipe ret %zd", pipe_readlen);
/* Continue so we can at least handle the current stream(s). */
continue;
}
continue;
}
- ret = add_stream(new_stream, data_ht);
- if (ret) {
- ERR("Consumer add stream %" PRIu64 " failed. Continuing",
- new_stream->key);
- /*
- * At this point, if the add_stream fails, it is not in the
- * hash table thus passing the NULL value here.
- */
- consumer_del_stream(new_stream, NULL);
- }
-
/* Continue to update the local streams and handle prio ones */
continue;
}
}
}
}
+ /* All is OK */
+ err = 0;
end:
DBG("polling thread exiting");
free(pollfd);
destroy_data_stream_ht(data_ht);
+ if (err) {
+ health_error();
+ ERR("Health error occurred in %s", __func__);
+ }
+ health_unregister(health_consumerd);
+
rcu_unregister_thread();
return NULL;
}
*/
void *consumer_thread_channel_poll(void *data)
{
- int ret, i, pollfd;
+ int ret, i, pollfd, err = -1;
uint32_t revents, nb_fd;
struct lttng_consumer_channel *chan = NULL;
struct lttng_ht_iter iter;
rcu_register_thread();
+ health_register(health_consumerd, HEALTH_CONSUMERD_TYPE_CHANNEL);
+
channel_ht = lttng_ht_new(0, LTTNG_HT_TYPE_U64);
if (!channel_ht) {
/* ENOMEM at this point. Better to bail out. */
while (1) {
/* Only the channel pipe is set */
if (LTTNG_POLL_GETNB(&events) == 0 && consumer_quit == 1) {
+ err = 0; /* All is OK */
goto end;
}
}
}
+ /* All is OK */
+ err = 0;
end:
lttng_poll_clean(&events);
end_poll:
destroy_channel_ht(channel_ht);
end_ht:
DBG("Channel poll thread exiting");
+ if (err) {
+ health_error();
+ ERR("Health error occurred in %s", __func__);
+ }
+ health_unregister(health_consumerd);
rcu_unregister_thread();
return NULL;
}
*/
void *consumer_thread_sessiond_poll(void *data)
{
- int sock = -1, client_socket, ret;
+ int sock = -1, client_socket, ret, err = -1;
/*
* structure to poll for incoming data on communication socket avoids
* making blocking sockets.
rcu_register_thread();
+ health_register(health_consumerd, HEALTH_CONSUMERD_TYPE_SESSIOND);
+
DBG("Creating command socket %s", ctx->consumer_command_sock_path);
unlink(ctx->consumer_command_sock_path);
client_socket = lttcomm_create_unix_sock(ctx->consumer_command_sock_path);
* ERR() here.
*/
DBG("Communication interrupted on command socket");
+ err = 0;
goto end;
}
if (consumer_quit) {
DBG("consumer_thread_receive_fds received quit from signal");
+ err = 0; /* All is OK */
goto end;
}
DBG("received command on sock");
}
+ /* All is OK */
+ err = 0;
+
end:
DBG("Consumer thread sessiond poll exiting");
}
}
+ if (err) {
+ health_error();
+ ERR("Health error occurred in %s", __func__);
+ }
+ health_unregister(health_consumerd);
+
rcu_unregister_thread();
return NULL;
}
ssize_t ret;
pthread_mutex_lock(&stream->lock);
+ if (stream->metadata_flag) {
+ pthread_mutex_lock(&stream->metadata_rdv_lock);
+ }
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
}
+ if (stream->metadata_flag) {
+ pthread_cond_broadcast(&stream->metadata_rdv);
+ pthread_mutex_unlock(&stream->metadata_rdv_lock);
+ }
pthread_mutex_unlock(&stream->lock);
return ret;
}
int consumer_add_relayd_socket(uint64_t net_seq_idx, int sock_type,
struct lttng_consumer_local_data *ctx, int sock,
struct pollfd *consumer_sockpoll,
- struct lttcomm_relayd_sock *relayd_sock, uint64_t sessiond_id)
+ struct lttcomm_relayd_sock *relayd_sock, uint64_t sessiond_id,
+ uint64_t relayd_session_id)
{
int fd = -1, ret = -1, relayd_created = 0;
enum lttng_error_code ret_code = LTTNG_OK;
relayd->control_sock.major = relayd_sock->major;
relayd->control_sock.minor = relayd_sock->minor;
- /*
- * Create a session on the relayd and store the returned id. Lock the
- * control socket mutex if the relayd was NOT created before.
- */
- if (!relayd_created) {
- pthread_mutex_lock(&relayd->ctrl_sock_mutex);
- }
- ret = relayd_create_session(&relayd->control_sock,
- &relayd->relayd_session_id);
- if (!relayd_created) {
- pthread_mutex_unlock(&relayd->ctrl_sock_mutex);
- }
- if (ret < 0) {
- /*
- * Close all sockets of a relayd object. It will be freed if it was
- * created at the error code path or else it will be garbage
- * collect.
- */
- (void) relayd_close(&relayd->control_sock);
- (void) relayd_close(&relayd->data_sock);
- ret_code = LTTCOMM_CONSUMERD_RELAYD_FAIL;
- goto error;
- }
+ relayd->relayd_session_id = relayd_session_id;
break;
case LTTNG_STREAM_DATA:
*/
ret = cds_lfht_is_node_deleted(&stream->node.node);
if (!ret) {
+ /*
+ * An empty output file is not valid. We need at least one packet
+ * generated per stream, even if it contains no event, so it
+ * contains at least one packet header.
+ */
+ if (stream->output_written == 0) {
+ pthread_mutex_unlock(&stream->lock);
+ goto data_pending;
+ }
/* Check the stream if there is data in the buffers. */
ret = data_pending(stream);
if (ret == 1) {