#include <common/common.h>
#include <common/defaults.h>
#include <common/uri.h>
+#include <common/relayd/relayd.h>
#include "consumer.h"
-#include "health.h"
+#include "health-sessiond.h"
#include "ust-app.h"
+#include "utils.h"
+
+/*
+ * Send a data payload using a given consumer socket of size len.
+ *
+ * The consumer socket lock MUST be acquired before calling this since this
+ * function can change the fd value.
+ *
+ * Return 0 on success else a negative value on error.
+ */
+int consumer_socket_send(struct consumer_socket *socket, void *msg, size_t len)
+{
+ int fd;
+ ssize_t size;
+
+ assert(socket);
+ assert(socket->fd_ptr);
+ assert(msg);
+
+ /* Consumer socket is invalid. Stopping. */
+ fd = *socket->fd_ptr;
+ if (fd < 0) {
+ goto error;
+ }
+
+ size = lttcomm_send_unix_sock(fd, msg, len);
+ if (size < 0) {
+ /* The above call will print a PERROR on error. */
+ DBG("Error when sending data to consumer on sock %d", fd);
+ /*
+ * At this point, the socket is not usable anymore thus closing it and
+ * setting the file descriptor to -1 so it is not reused.
+ */
+
+ /* This call will PERROR on error. */
+ (void) lttcomm_close_unix_sock(fd);
+ *socket->fd_ptr = -1;
+ goto error;
+ }
+
+ return 0;
+
+error:
+ return -1;
+}
+
+/*
+ * Receive a data payload using a given consumer socket of size len.
+ *
+ * The consumer socket lock MUST be acquired before calling this since this
+ * function can change the fd value.
+ *
+ * Return 0 on success else a negative value on error.
+ */
+int consumer_socket_recv(struct consumer_socket *socket, void *msg, size_t len)
+{
+ int fd;
+ ssize_t size;
+
+ assert(socket);
+ assert(socket->fd_ptr);
+ assert(msg);
+
+ /* Consumer socket is invalid. Stopping. */
+ fd = *socket->fd_ptr;
+ if (fd < 0) {
+ goto error;
+ }
+
+ size = lttcomm_recv_unix_sock(fd, msg, len);
+ if (size <= 0) {
+ /* The above call will print a PERROR on error. */
+ DBG("Error when receiving data from the consumer socket %d", fd);
+ /*
+ * At this point, the socket is not usable anymore thus closing it and
+ * setting the file descriptor to -1 so it is not reused.
+ */
+
+ /* This call will PERROR on error. */
+ (void) lttcomm_close_unix_sock(fd);
+ *socket->fd_ptr = -1;
+ goto error;
+ }
+
+ return 0;
+
+error:
+ return -1;
+}
/*
* Receive a reply command status message from the consumer. Consumer socket
assert(sock);
- ret = lttcomm_recv_unix_sock(sock->fd, &reply, sizeof(reply));
- if (ret <= 0) {
- if (ret == 0) {
- /* Orderly shutdown. Don't return 0 which means success. */
- ret = -1;
- }
- /* The above call will print a PERROR on error. */
- DBG("Fail to receive status reply on sock %d", sock->fd);
+ ret = consumer_socket_recv(sock, &reply, sizeof(reply));
+ if (ret < 0) {
goto end;
}
- if (reply.ret_code == LTTNG_OK) {
+ if (reply.ret_code == LTTCOMM_CONSUMERD_SUCCESS) {
/* All good. */
ret = 0;
} else {
assert(stream_count);
assert(key);
- ret = lttcomm_recv_unix_sock(sock->fd, &reply, sizeof(reply));
- if (ret <= 0) {
- if (ret == 0) {
- /* Orderly shutdown. Don't return 0 which means success. */
- ret = -1;
- }
- /* The above call will print a PERROR on error. */
- DBG("Fail to receive status reply on sock %d", sock->fd);
+ ret = consumer_socket_recv(sock, &reply, sizeof(reply));
+ if (ret < 0) {
goto end;
}
/* An error is possible so don't touch the key and stream_count. */
- if (reply.ret_code != LTTNG_OK) {
+ if (reply.ret_code != LTTCOMM_CONSUMERD_SUCCESS) {
ret = -1;
goto end;
}
*key = reply.key;
*stream_count = reply.stream_count;
+ ret = 0;
end:
return ret;
assert(consumer);
assert(sock);
- DBG2("Sending destroy relayd command to consumer sock %d", sock->fd);
-
- /* Bail out if consumer is disabled */
- if (!consumer->enabled) {
- ret = LTTNG_OK;
- DBG3("Consumer is disabled");
- goto error;
- }
+ DBG2("Sending destroy relayd command to consumer sock %d", *sock->fd_ptr);
msg.cmd_type = LTTNG_CONSUMER_DESTROY_RELAYD;
msg.u.destroy_relayd.net_seq_idx = consumer->net_seq_index;
pthread_mutex_lock(sock->lock);
- ret = lttcomm_send_unix_sock(sock->fd, &msg, sizeof(msg));
+ ret = consumer_socket_send(sock, &msg, sizeof(msg));
if (ret < 0) {
- /* Indicate that the consumer is probably closing at this point. */
- DBG("send consumer destroy relayd command");
- goto error_send;
+ goto error;
}
/* Don't check the return value. The caller will do it. */
DBG2("Consumer send destroy relayd command done");
-error_send:
- pthread_mutex_unlock(sock->lock);
error:
+ pthread_mutex_unlock(sock->lock);
return ret;
}
assert(consumer);
/* Destroy any relayd connection */
- if (consumer && consumer->type == CONSUMER_DST_NET) {
+ if (consumer->type == CONSUMER_DST_NET) {
rcu_read_lock();
cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket,
node.node) {
socket = consumer_find_socket(data->cmd_sock, output);
rcu_read_unlock();
if (socket == NULL) {
- socket = consumer_allocate_socket(data->cmd_sock);
+ socket = consumer_allocate_socket(&data->cmd_sock);
if (socket == NULL) {
ret = -1;
goto error;
rcu_read_unlock();
}
+ socket->type = data->type;
+
DBG3("Consumer socket created (fd: %d) and added to output",
data->cmd_sock);
/*
* Allocate a new consumer_socket and return the pointer.
*/
-struct consumer_socket *consumer_allocate_socket(int fd)
+struct consumer_socket *consumer_allocate_socket(int *fd)
{
struct consumer_socket *socket = NULL;
+ assert(fd);
+
socket = zmalloc(sizeof(struct consumer_socket));
if (socket == NULL) {
PERROR("zmalloc consumer socket");
goto error;
}
- socket->fd = fd;
- lttng_ht_node_init_ulong(&socket->node, fd);
+ socket->fd_ptr = fd;
+ lttng_ht_node_init_ulong(&socket->node, *fd);
error:
return socket;
* consumer was registered,
*/
if (sock->registered) {
- DBG3("Consumer socket was registered. Closing fd %d", sock->fd);
- lttcomm_close_unix_sock(sock->fd);
+ DBG3("Consumer socket was registered. Closing fd %d", *sock->fd_ptr);
+ lttcomm_close_unix_sock(*sock->fd_ptr);
}
call_rcu(&sock->node.head, destroy_socket_rcu);
return output;
}
+/*
+ * Iterate over the consumer output socket hash table and destroy them. The
+ * socket file descriptor are only closed if the consumer output was
+ * registered meaning it's an external consumer.
+ */
+void consumer_destroy_output_sockets(struct consumer_output *obj)
+{
+ struct lttng_ht_iter iter;
+ struct consumer_socket *socket;
+
+ if (!obj->socks) {
+ return;
+ }
+
+ rcu_read_lock();
+ cds_lfht_for_each_entry(obj->socks->ht, &iter.iter, socket, node.node) {
+ consumer_del_socket(socket, obj);
+ consumer_destroy_socket(socket);
+ }
+ rcu_read_unlock();
+}
+
/*
* Delete the consumer_output object from the list and free the ptr.
+ *
+ * Should *NOT* be called with RCU read-side lock held.
*/
void consumer_destroy_output(struct consumer_output *obj)
{
return;
}
- if (obj->socks) {
- struct lttng_ht_iter iter;
- struct consumer_socket *socket;
-
- rcu_read_lock();
- cds_lfht_for_each_entry(obj->socks->ht, &iter.iter, socket, node.node) {
- consumer_del_socket(socket, obj);
- consumer_destroy_socket(socket);
- }
- rcu_read_unlock();
+ consumer_destroy_output_sockets(obj);
+ if (obj->socks) {
/* Finally destroy HT */
- lttng_ht_destroy(obj->socks);
+ ht_cleanup_push(obj->socks);
}
free(obj);
/*
* Copy consumer output and returned the newly allocated copy.
+ *
+ * Should *NOT* be called with RCU read-side lock held.
*/
struct consumer_output *consumer_copy_output(struct consumer_output *obj)
{
+ int ret;
struct lttng_ht *tmp_ht_ptr;
- struct lttng_ht_iter iter;
- struct consumer_socket *socket, *copy_sock;
struct consumer_output *output;
assert(obj);
/* Putting back the HT pointer and start copying socket(s). */
output->socks = tmp_ht_ptr;
+ ret = consumer_copy_sockets(output, obj);
+ if (ret < 0) {
+ goto malloc_error;
+ }
+
+error:
+ return output;
+
+malloc_error:
+ consumer_destroy_output(output);
+ return NULL;
+}
+
+/*
+ * Copy consumer sockets from src to dst.
+ *
+ * Return 0 on success or else a negative value.
+ */
+int consumer_copy_sockets(struct consumer_output *dst,
+ struct consumer_output *src)
+{
+ int ret = 0;
+ struct lttng_ht_iter iter;
+ struct consumer_socket *socket, *copy_sock;
+
+ assert(dst);
+ assert(src);
+
rcu_read_lock();
- cds_lfht_for_each_entry(obj->socks->ht, &iter.iter, socket, node.node) {
+ cds_lfht_for_each_entry(src->socks->ht, &iter.iter, socket, node.node) {
+ /* Ignore socket that are already there. */
+ copy_sock = consumer_find_socket(*socket->fd_ptr, dst);
+ if (copy_sock) {
+ continue;
+ }
+
/* Create new socket object. */
- copy_sock = consumer_allocate_socket(socket->fd);
+ copy_sock = consumer_allocate_socket(socket->fd_ptr);
if (copy_sock == NULL) {
rcu_read_unlock();
- goto malloc_error;
+ ret = -ENOMEM;
+ goto error;
}
copy_sock->registered = socket->registered;
+ /*
+ * This is valid because this lock is shared accross all consumer
+ * object being the global lock of the consumer data structure of the
+ * session daemon.
+ */
copy_sock->lock = socket->lock;
- consumer_add_socket(copy_sock, output);
+ consumer_add_socket(copy_sock, dst);
}
rcu_read_unlock();
error:
- return output;
-
-malloc_error:
- consumer_destroy_output(output);
- return NULL;
+ return ret;
}
/*
assert(sock);
assert(nb_fd > 0);
- ret = lttcomm_send_fds_unix_sock(sock->fd, fds, nb_fd);
+ ret = lttcomm_send_fds_unix_sock(*sock->fd_ptr, fds, nb_fd);
if (ret < 0) {
/* The above call will print a PERROR on error. */
- DBG("Error when sending consumer fds on sock %d", sock->fd);
+ DBG("Error when sending consumer fds on sock %d", *sock->fd_ptr);
goto error;
}
assert(msg);
assert(sock);
- assert(sock->fd >= 0);
- ret = lttcomm_send_unix_sock(sock->fd, msg,
- sizeof(struct lttcomm_consumer_msg));
+ ret = consumer_socket_send(sock, msg, sizeof(struct lttcomm_consumer_msg));
if (ret < 0) {
- /* The above call will print a PERROR on error. */
- DBG("Error when sending consumer channel on sock %d", sock->fd);
goto error;
}
assert(msg);
assert(sock);
- assert(sock->fd >= 0);
- ret = lttcomm_send_unix_sock(sock->fd, msg,
- sizeof(struct lttcomm_consumer_msg));
+ ret = consumer_send_msg(sock, msg);
if (ret < 0) {
- /* The above call will print a PERROR on error. */
- DBG("Error when sending consumer channel on sock %d", sock->fd);
goto error;
}
- ret = consumer_recv_status_reply(sock);
-
error:
return ret;
}
int overwrite,
unsigned int switch_timer_interval,
unsigned int read_timer_interval,
+ unsigned int live_timer_interval,
int output,
int type,
uint64_t session_id,
unsigned char *uuid,
uint32_t chan_id,
uint64_t tracefile_size,
- uint64_t tracefile_count)
+ uint64_t tracefile_count,
+ uint64_t session_id_per_pid,
+ unsigned int monitor,
+ uint32_t ust_app_uid)
{
assert(msg);
msg->u.ask_channel.overwrite = overwrite;
msg->u.ask_channel.switch_timer_interval = switch_timer_interval;
msg->u.ask_channel.read_timer_interval = read_timer_interval;
+ msg->u.ask_channel.live_timer_interval = live_timer_interval;
msg->u.ask_channel.output = output;
msg->u.ask_channel.type = type;
msg->u.ask_channel.session_id = session_id;
+ msg->u.ask_channel.session_id_per_pid = session_id_per_pid;
msg->u.ask_channel.uid = uid;
msg->u.ask_channel.gid = gid;
msg->u.ask_channel.relayd_id = relayd_id;
msg->u.ask_channel.chan_id = chan_id;
msg->u.ask_channel.tracefile_size = tracefile_size;
msg->u.ask_channel.tracefile_count = tracefile_count;
+ msg->u.ask_channel.monitor = monitor;
+ msg->u.ask_channel.ust_app_uid = ust_app_uid;
memcpy(msg->u.ask_channel.uuid, uuid, sizeof(msg->u.ask_channel.uuid));
- strncpy(msg->u.ask_channel.pathname, pathname,
- sizeof(msg->u.ask_channel.pathname));
- msg->u.ask_channel.pathname[sizeof(msg->u.ask_channel.pathname)-1] = '\0';
+ if (pathname) {
+ strncpy(msg->u.ask_channel.pathname, pathname,
+ sizeof(msg->u.ask_channel.pathname));
+ msg->u.ask_channel.pathname[sizeof(msg->u.ask_channel.pathname)-1] = '\0';
+ }
strncpy(msg->u.ask_channel.name, name, sizeof(msg->u.ask_channel.name));
msg->u.ask_channel.name[sizeof(msg->u.ask_channel.name) - 1] = '\0';
enum lttng_event_output output,
int type,
uint64_t tracefile_size,
- uint64_t tracefile_count)
+ uint64_t tracefile_count,
+ unsigned int monitor,
+ unsigned int live_timer_interval)
{
assert(msg);
msg->u.channel.type = type;
msg->u.channel.tracefile_size = tracefile_size;
msg->u.channel.tracefile_count = tracefile_count;
+ msg->u.channel.monitor = monitor;
+ msg->u.channel.live_timer_interval = live_timer_interval;
strncpy(msg->u.channel.pathname, pathname,
sizeof(msg->u.channel.pathname));
msg->u.stream.cpu = cpu;
}
+void consumer_init_streams_sent_comm_msg(struct lttcomm_consumer_msg *msg,
+ enum lttng_consumer_command cmd,
+ uint64_t channel_key, uint64_t net_seq_idx)
+{
+ assert(msg);
+
+ memset(msg, 0, sizeof(struct lttcomm_consumer_msg));
+
+ msg->cmd_type = cmd;
+ msg->u.sent_streams.channel_key = channel_key;
+ msg->u.sent_streams.net_seq_idx = net_seq_idx;
+}
+
/*
* Send stream communication structure to the consumer.
*/
assert(sock);
assert(fds);
- /* Send on socket */
- ret = lttcomm_send_unix_sock(sock->fd, msg,
- sizeof(struct lttcomm_consumer_msg));
- if (ret < 0) {
- /* The above call will print a PERROR on error. */
- DBG("Error when sending consumer stream on sock %d", sock->fd);
- goto error;
- }
-
- ret = consumer_recv_status_reply(sock);
+ ret = consumer_send_msg(sock, msg);
if (ret < 0) {
goto error;
}
*/
int consumer_send_relayd_socket(struct consumer_socket *consumer_sock,
struct lttcomm_relayd_sock *rsock, struct consumer_output *consumer,
- enum lttng_stream_type type, uint64_t session_id)
+ enum lttng_stream_type type, uint64_t session_id,
+ char *session_name, char *hostname, int session_live_timer)
{
int ret;
struct lttcomm_consumer_msg msg;
goto error;
}
+ if (type == LTTNG_STREAM_CONTROL) {
+ ret = relayd_create_session(rsock,
+ &msg.u.relayd_sock.relayd_session_id,
+ session_name, hostname, session_live_timer,
+ consumer->snapshot);
+ if (ret < 0) {
+ /* Close the control socket. */
+ (void) relayd_close(rsock);
+ goto error;
+ }
+ }
+
msg.cmd_type = LTTNG_CONSUMER_ADD_RELAYD_SOCKET;
/*
* Assign network consumer output index using the temporary consumer since
msg.u.relayd_sock.session_id = session_id;
memcpy(&msg.u.relayd_sock.sock, rsock, sizeof(msg.u.relayd_sock.sock));
- DBG3("Sending relayd sock info to consumer on %d", consumer_sock->fd);
- ret = lttcomm_send_unix_sock(consumer_sock->fd, &msg, sizeof(msg));
- if (ret < 0) {
- /* The above call will print a PERROR on error. */
- DBG("Error when sending relayd sockets on sock %d", rsock->sock.fd);
- goto error;
- }
-
- ret = consumer_recv_status_reply(consumer_sock);
+ DBG3("Sending relayd sock info to consumer on %d", *consumer_sock->fd_ptr);
+ ret = consumer_send_msg(consumer_sock, &msg);
if (ret < 0) {
goto error;
}
rcu_read_lock();
cds_lfht_for_each_entry(consumer->socks->ht, &iter.iter, socket,
node.node) {
- /* Code flow error */
- assert(socket->fd >= 0);
-
pthread_mutex_lock(socket->lock);
-
- ret = lttcomm_send_unix_sock(socket->fd, &msg, sizeof(msg));
+ ret = consumer_socket_send(socket, &msg, sizeof(msg));
if (ret < 0) {
- /* The above call will print a PERROR on error. */
- DBG("Error on consumer is data pending on sock %d", socket->fd);
pthread_mutex_unlock(socket->lock);
goto error_unlock;
}
* the reply status message.
*/
- ret = lttcomm_recv_unix_sock(socket->fd, &ret_code, sizeof(ret_code));
- if (ret <= 0) {
- if (ret == 0) {
- /* Orderly shutdown. Don't return 0 which means success. */
- ret = -1;
- }
- /* The above call will print a PERROR on error. */
- DBG("Error on recv consumer is data pending on sock %d", socket->fd);
+ ret = consumer_socket_recv(socket, &ret_code, sizeof(ret_code));
+ if (ret < 0) {
pthread_mutex_unlock(socket->lock);
goto error_unlock;
}
-
pthread_mutex_unlock(socket->lock);
if (ret_code == 1) {
struct lttcomm_consumer_msg msg;
assert(socket);
- assert(socket->fd >= 0);
DBG2("Consumer flush channel key %" PRIu64, key);
struct lttcomm_consumer_msg msg;
assert(socket);
- assert(socket->fd >= 0);
DBG2("Consumer close metadata channel key %" PRIu64, metadata_key);
struct lttcomm_consumer_msg msg;
assert(socket);
- assert(socket->fd >= 0);
DBG2("Consumer setup metadata channel key %" PRIu64, metadata_key);
struct lttcomm_consumer_msg msg;
assert(socket);
- assert(socket->fd >= 0);
- DBG2("Consumer push metadata to consumer socket %d", socket->fd);
+ DBG2("Consumer push metadata to consumer socket %d", *socket->fd_ptr);
msg.cmd_type = LTTNG_CONSUMER_PUSH_METADATA;
msg.u.push_metadata.key = metadata_key;
goto end;
}
- DBG3("Consumer pushing metadata on sock %d of len %lu", socket->fd, len);
+ DBG3("Consumer pushing metadata on sock %d of len %zu", *socket->fd_ptr,
+ len);
- ret = lttcomm_send_unix_sock(socket->fd, metadata_str, len);
+ ret = consumer_socket_send(socket, metadata_str, len);
if (ret < 0) {
goto end;
}
health_code_update();
return ret;
}
+
+/*
+ * Ask the consumer to snapshot a specific channel using the key.
+ *
+ * Return 0 on success or else a negative error.
+ */
+int consumer_snapshot_channel(struct consumer_socket *socket, uint64_t key,
+ struct snapshot_output *output, int metadata, uid_t uid, gid_t gid,
+ const char *session_path, int wait, int max_stream_size)
+{
+ int ret;
+ struct lttcomm_consumer_msg msg;
+
+ assert(socket);
+ assert(output);
+ assert(output->consumer);
+
+ DBG("Consumer snapshot channel key %" PRIu64, key);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.cmd_type = LTTNG_CONSUMER_SNAPSHOT_CHANNEL;
+ msg.u.snapshot_channel.key = key;
+ msg.u.snapshot_channel.max_stream_size = max_stream_size;
+ msg.u.snapshot_channel.metadata = metadata;
+
+ if (output->consumer->type == CONSUMER_DST_NET) {
+ msg.u.snapshot_channel.relayd_id = output->consumer->net_seq_index;
+ msg.u.snapshot_channel.use_relayd = 1;
+ ret = snprintf(msg.u.snapshot_channel.pathname,
+ sizeof(msg.u.snapshot_channel.pathname),
+ "%s/%s-%s-%" PRIu64 "%s", output->consumer->subdir,
+ output->name, output->datetime, output->nb_snapshot,
+ session_path);
+ if (ret < 0) {
+ ret = -LTTNG_ERR_NOMEM;
+ goto error;
+ }
+ } else {
+ ret = snprintf(msg.u.snapshot_channel.pathname,
+ sizeof(msg.u.snapshot_channel.pathname),
+ "%s/%s-%s-%" PRIu64 "%s", output->consumer->dst.trace_path,
+ output->name, output->datetime, output->nb_snapshot,
+ session_path);
+ if (ret < 0) {
+ ret = -LTTNG_ERR_NOMEM;
+ goto error;
+ }
+ msg.u.snapshot_channel.relayd_id = (uint64_t) -1ULL;
+
+ /* Create directory. Ignore if exist. */
+ ret = run_as_mkdir_recursive(msg.u.snapshot_channel.pathname,
+ S_IRWXU | S_IRWXG, uid, gid);
+ if (ret < 0) {
+ if (ret != -EEXIST) {
+ ERR("Trace directory creation error");
+ goto error;
+ }
+ }
+ }
+
+ health_code_update();
+ ret = consumer_send_msg(socket, &msg);
+ if (ret < 0) {
+ goto error;
+ }
+
+error:
+ health_code_update();
+ return ret;
+}
projects / lttng-tools.git / blobdiff