#include <common/defaults.h>
#include "consumer.h"
+#include "health.h"
#include "kernel-consumer.h"
+static char *create_channel_path(struct consumer_output *consumer,
+ uid_t uid, gid_t gid)
+{
+ int ret;
+ char tmp_path[PATH_MAX];
+ char *pathname = NULL;
+
+ assert(consumer);
+
+ /* Get the right path name destination */
+ if (consumer->type == CONSUMER_DST_LOCAL) {
+ /* Set application path to the destination path */
+ ret = snprintf(tmp_path, sizeof(tmp_path), "%s%s",
+ consumer->dst.trace_path, consumer->subdir);
+ if (ret < 0) {
+ PERROR("snprintf kernel channel path");
+ goto error;
+ }
+ pathname = strndup(tmp_path, sizeof(tmp_path));
+
+ /* Create directory */
+ ret = run_as_mkdir_recursive(pathname, S_IRWXU | S_IRWXG, uid, gid);
+ if (ret < 0) {
+ if (ret != -EEXIST) {
+ ERR("Trace directory creation error");
+ goto error;
+ }
+ }
+ DBG3("Kernel local consumer tracefile path: %s", pathname);
+ } else {
+ ret = snprintf(tmp_path, sizeof(tmp_path), "%s", consumer->subdir);
+ if (ret < 0) {
+ PERROR("snprintf kernel metadata path");
+ goto error;
+ }
+ pathname = strndup(tmp_path, sizeof(tmp_path));
+ DBG3("Kernel network consumer subdir path: %s", pathname);
+ }
+
+ return pathname;
+
+error:
+ free(pathname);
+ return NULL;
+}
+
/*
* Sending a single channel to the consumer with command ADD_CHANNEL.
*/
int kernel_consumer_add_channel(struct consumer_socket *sock,
- struct ltt_kernel_channel *channel)
+ struct ltt_kernel_channel *channel, struct ltt_kernel_session *session,
+ unsigned int monitor)
{
int ret;
+ char *pathname;
struct lttcomm_consumer_msg lkm;
+ struct consumer_output *consumer;
/* Safety net */
assert(channel);
+ assert(session);
+ assert(session->consumer);
+
+ consumer = session->consumer;
DBG("Kernel consumer adding channel %s to kernel consumer",
channel->channel->name);
+ if (monitor) {
+ pathname = create_channel_path(consumer, session->uid, session->gid);
+ if (!pathname) {
+ ret = -1;
+ goto error;
+ }
+ } else {
+ /* Empty path. */
+ pathname = "";
+ }
+
/* Prep channel message structure */
consumer_init_channel_comm_msg(&lkm,
LTTNG_CONSUMER_ADD_CHANNEL,
channel->fd,
- channel->channel->attr.subbuf_size,
- 0, /* Kernel */
+ session->id,
+ pathname,
+ session->uid,
+ session->gid,
+ consumer->net_seq_index,
channel->channel->name,
- channel->stream_count);
+ channel->stream_count,
+ channel->channel->attr.output,
+ CONSUMER_CHANNEL_TYPE_DATA,
+ channel->channel->attr.tracefile_size,
+ channel->channel->attr.tracefile_count,
+ monitor);
- health_code_update(&health_thread_kernel);
+ health_code_update();
ret = consumer_send_channel(sock, &lkm);
if (ret < 0) {
goto error;
}
- health_code_update(&health_thread_kernel);
+ health_code_update();
error:
return ret;
* Sending metadata to the consumer with command ADD_CHANNEL and ADD_STREAM.
*/
int kernel_consumer_add_metadata(struct consumer_socket *sock,
- struct ltt_kernel_session *session)
+ struct ltt_kernel_session *session, unsigned int monitor)
{
int ret;
- char tmp_path[PATH_MAX];
- const char *pathname;
+ char *pathname;
struct lttcomm_consumer_msg lkm;
struct consumer_output *consumer;
/* Get consumer output pointer */
consumer = session->consumer;
- /* Get the right path name destination */
- if (consumer->type == CONSUMER_DST_LOCAL) {
- /* Set application path to the destination path */
- ret = snprintf(tmp_path, sizeof(tmp_path), "%s/%s",
- consumer->dst.trace_path, consumer->subdir);
- if (ret < 0) {
- PERROR("snprintf metadata path");
+ if (monitor) {
+ pathname = create_channel_path(consumer, session->uid, session->gid);
+ if (!pathname) {
+ ret = -1;
goto error;
}
- pathname = tmp_path;
-
- /* Create directory */
- ret = run_as_mkdir_recursive(pathname, S_IRWXU | S_IRWXG,
- session->uid, session->gid);
- if (ret < 0) {
- if (ret != -EEXIST) {
- ERR("Trace directory creation error");
- goto error;
- }
- }
- DBG3("Kernel local consumer tracefile path: %s", pathname);
} else {
- ret = snprintf(tmp_path, sizeof(tmp_path), "%s", consumer->subdir);
- if (ret < 0) {
- PERROR("snprintf metadata path");
- goto error;
- }
- pathname = tmp_path;
- DBG3("Kernel network consumer subdir path: %s", pathname);
+ /* Empty path. */
+ pathname = "";
}
/* Prep channel message structure */
consumer_init_channel_comm_msg(&lkm,
LTTNG_CONSUMER_ADD_CHANNEL,
session->metadata->fd,
- session->metadata->conf->attr.subbuf_size,
- 0, /* for kernel */
+ session->id,
+ pathname,
+ session->uid,
+ session->gid,
+ consumer->net_seq_index,
DEFAULT_METADATA_NAME,
- 1);
+ 1,
+ DEFAULT_KERNEL_CHANNEL_OUTPUT,
+ CONSUMER_CHANNEL_TYPE_METADATA,
+ 0, 0,
+ monitor);
- health_code_update(&health_thread_kernel);
+ health_code_update();
ret = consumer_send_channel(sock, &lkm);
if (ret < 0) {
goto error;
}
- health_code_update(&health_thread_kernel);
+ health_code_update();
/* Prep stream message structure */
consumer_init_stream_comm_msg(&lkm,
LTTNG_CONSUMER_ADD_STREAM,
session->metadata->fd,
session->metadata_stream_fd,
- LTTNG_CONSUMER_ACTIVE_STREAM,
- DEFAULT_KERNEL_CHANNEL_OUTPUT,
- 0, /* Kernel */
- session->uid,
- session->gid,
- consumer->net_seq_index,
- 1, /* Metadata flag set */
- DEFAULT_METADATA_NAME,
- pathname,
- session->id);
+ 0); /* CPU: 0 for metadata. */
- health_code_update(&health_thread_kernel);
+ health_code_update();
/* Send stream and file descriptor */
ret = consumer_send_stream(sock, consumer, &lkm,
goto error;
}
- health_code_update(&health_thread_kernel);
+ health_code_update();
error:
return ret;
*/
int kernel_consumer_add_stream(struct consumer_socket *sock,
struct ltt_kernel_channel *channel, struct ltt_kernel_stream *stream,
- struct ltt_kernel_session *session)
+ struct ltt_kernel_session *session, unsigned int monitor)
{
int ret;
- char tmp_path[PATH_MAX];
- const char *pathname;
struct lttcomm_consumer_msg lkm;
struct consumer_output *consumer;
/* Get consumer output pointer */
consumer = session->consumer;
- /* Get the right path name destination */
- if (consumer->type == CONSUMER_DST_LOCAL) {
- /* Set application path to the destination path */
- ret = snprintf(tmp_path, sizeof(tmp_path), "%s/%s",
- consumer->dst.trace_path, consumer->subdir);
- if (ret < 0) {
- PERROR("snprintf stream path");
- goto error;
- }
- pathname = tmp_path;
- DBG3("Kernel local consumer tracefile path: %s", pathname);
- } else {
- ret = snprintf(tmp_path, sizeof(tmp_path), "%s", consumer->subdir);
- if (ret < 0) {
- PERROR("snprintf stream path");
- goto error;
- }
- pathname = tmp_path;
- DBG3("Kernel network consumer subdir path: %s", pathname);
- }
-
/* Prep stream consumer message */
- consumer_init_stream_comm_msg(&lkm, LTTNG_CONSUMER_ADD_STREAM,
+ consumer_init_stream_comm_msg(&lkm,
+ LTTNG_CONSUMER_ADD_STREAM,
channel->fd,
stream->fd,
- stream->state,
- channel->channel->attr.output,
- 0, /* Kernel */
- session->uid,
- session->gid,
- consumer->net_seq_index,
- 0, /* Metadata flag unset */
- stream->name,
- pathname,
- session->id);
+ stream->cpu);
- health_code_update(&health_thread_kernel);
+ health_code_update();
/* Send stream and file descriptor */
ret = consumer_send_stream(sock, consumer, &lkm, &stream->fd, 1);
goto error;
}
- health_code_update(&health_thread_kernel);
+ health_code_update();
error:
return ret;
* Send all stream fds of kernel channel to the consumer.
*/
int kernel_consumer_send_channel_stream(struct consumer_socket *sock,
- struct ltt_kernel_channel *channel, struct ltt_kernel_session *session)
+ struct ltt_kernel_channel *channel, struct ltt_kernel_session *session,
+ unsigned int monitor)
{
int ret;
struct ltt_kernel_stream *stream;
DBG("Sending streams of channel %s to kernel consumer",
channel->channel->name);
- ret = kernel_consumer_add_channel(sock, channel);
+ ret = kernel_consumer_add_channel(sock, channel, session, monitor);
if (ret < 0) {
goto error;
}
}
/* Add stream on the kernel consumer side. */
- ret = kernel_consumer_add_stream(sock, channel, stream, session);
+ ret = kernel_consumer_add_stream(sock, channel, stream, session,
+ monitor);
if (ret < 0) {
goto error;
}
int kernel_consumer_send_session(struct consumer_socket *sock,
struct ltt_kernel_session *session)
{
- int ret;
+ int ret, monitor = 0;
struct ltt_kernel_channel *chan;
/* Safety net */
goto error;
}
+ /* Don't monitor the streams on the consumer if in flight recorder. */
+ if (session->output_traces) {
+ monitor = 1;
+ }
+
DBG("Sending session stream to kernel consumer");
if (session->metadata_stream_fd >= 0) {
- ret = kernel_consumer_add_metadata(sock, session);
+ ret = kernel_consumer_add_metadata(sock, session, monitor);
if (ret < 0) {
goto error;
}
/* Send channel and streams of it */
cds_list_for_each_entry(chan, &session->channel_list.head, list) {
- ret = kernel_consumer_send_channel_stream(sock, chan, session);
+ ret = kernel_consumer_send_channel_stream(sock, chan, session,
+ monitor);
if (ret < 0) {
goto error;
}
error:
return ret;
}
+
+int kernel_consumer_destroy_channel(struct consumer_socket *socket,
+ struct ltt_kernel_channel *channel)
+{
+ int ret;
+ struct lttcomm_consumer_msg msg;
+
+ assert(channel);
+ assert(socket);
+ assert(socket->fd >= 0);
+
+ DBG("Sending kernel consumer destroy channel key %d", channel->fd);
+
+ msg.cmd_type = LTTNG_CONSUMER_DESTROY_CHANNEL;
+ msg.u.destroy_channel.key = channel->fd;
+
+ pthread_mutex_lock(socket->lock);
+ health_code_update();
+
+ ret = consumer_send_msg(socket, &msg);
+ if (ret < 0) {
+ goto error;
+ }
+
+error:
+ health_code_update();
+ pthread_mutex_unlock(socket->lock);
+ return ret;
+}
+
+int kernel_consumer_destroy_metadata(struct consumer_socket *socket,
+ struct ltt_kernel_metadata *metadata)
+{
+ int ret;
+ struct lttcomm_consumer_msg msg;
+
+ assert(metadata);
+ assert(socket);
+ assert(socket->fd >= 0);
+
+ DBG("Sending kernel consumer destroy channel key %d", metadata->fd);
+
+ msg.cmd_type = LTTNG_CONSUMER_DESTROY_CHANNEL;
+ msg.u.destroy_channel.key = metadata->fd;
+
+ pthread_mutex_lock(socket->lock);
+ health_code_update();
+
+ ret = consumer_send_msg(socket, &msg);
+ if (ret < 0) {
+ goto error;
+ }
+
+error:
+ health_code_update();
+ pthread_mutex_unlock(socket->lock);
+ return ret;
+}
projects / lttng-tools.git / blobdiff