#include <common/defaults.h>
#include "consumer.h"
+#include "health.h"
#include "kernel-consumer.h"
-/*
- * 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_session *session)
+static char *create_channel_path(struct consumer_output *consumer,
+ uid_t uid, gid_t gid)
{
int ret;
char tmp_path[PATH_MAX];
- const char *pathname;
- struct lttcomm_consumer_msg lkm;
- struct consumer_output *consumer;
-
- /* Safety net */
- assert(channel);
- assert(session);
- assert(session->consumer);
-
- consumer = session->consumer;
+ char *pathname = NULL;
- DBG("Kernel consumer adding channel %s to kernel consumer",
- channel->channel->name);
+ 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",
+ ret = snprintf(tmp_path, sizeof(tmp_path), "%s%s",
consumer->dst.trace_path, consumer->subdir);
if (ret < 0) {
- PERROR("snprintf metadata path");
+ PERROR("snprintf kernel channel path");
goto error;
}
- pathname = tmp_path;
+ pathname = strndup(tmp_path, sizeof(tmp_path));
/* Create directory */
- ret = run_as_mkdir_recursive(pathname, S_IRWXU | S_IRWXG,
- session->uid, session->gid);
+ ret = run_as_mkdir_recursive(pathname, S_IRWXU | S_IRWXG, uid, gid);
if (ret < 0) {
if (ret != -EEXIST) {
ERR("Trace directory creation error");
} else {
ret = snprintf(tmp_path, sizeof(tmp_path), "%s", consumer->subdir);
if (ret < 0) {
- PERROR("snprintf metadata path");
+ PERROR("snprintf kernel metadata path");
goto error;
}
- pathname = tmp_path;
+ 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_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->channel->name,
channel->stream_count,
channel->channel->attr.output,
- CONSUMER_CHANNEL_TYPE_DATA);
+ CONSUMER_CHANNEL_TYPE_DATA,
+ channel->channel->attr.tracefile_size,
+ channel->channel->attr.tracefile_count,
+ monitor);
health_code_update();
* 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 */
DEFAULT_METADATA_NAME,
1,
DEFAULT_KERNEL_CHANNEL_OUTPUT,
- CONSUMER_CHANNEL_TYPE_METADATA);
+ CONSUMER_CHANNEL_TYPE_METADATA,
+ 0, 0,
+ monitor);
health_code_update();
LTTNG_CONSUMER_ADD_STREAM,
session->metadata->fd,
session->metadata_stream_fd,
- 0); /* CPU: 0 for metadata. */
+ 0); /* CPU: 0 for metadata. */
health_code_update();
*/
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;
struct lttcomm_consumer_msg lkm;
* 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, session);
+ 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