#include <urcu/list.h>
#include <urcu/uatomic.h>
-#include <common/buffer-view.h>
-#include <common/common.h>
-#include <common/compat/string.h>
-#include <common/defaults.h>
-#include <common/dynamic-buffer.h>
-#include <common/kernel-ctl/kernel-ctl.h>
-#include <common/relayd/relayd.h>
-#include <common/sessiond-comm/sessiond-comm.h>
-#include <common/string-utils/string-utils.h>
-#include <common/trace-chunk.h>
-#include <common/utils.h>
-
+#include <common/buffer-view.hpp>
+#include <common/common.hpp>
+#include <common/compat/string.hpp>
+#include <common/defaults.hpp>
+#include <common/dynamic-buffer.hpp>
+#include <common/kernel-ctl/kernel-ctl.hpp>
+#include <common/payload-view.hpp>
+#include <common/payload.hpp>
+#include <common/relayd/relayd.hpp>
+#include <common/sessiond-comm/sessiond-comm.hpp>
+#include <common/string-utils/string-utils.hpp>
+#include <common/trace-chunk.hpp>
+#include <common/utils.hpp>
+#include <lttng/action/action-internal.hpp>
#include <lttng/action/action.h>
-#include <lttng/action/action-internal.h>
-#include <lttng/channel-internal.h>
+#include <lttng/channel-internal.hpp>
#include <lttng/channel.h>
+#include <lttng/condition/condition-internal.hpp>
#include <lttng/condition/condition.h>
-#include <lttng/error-query-internal.h>
-#include <lttng/event-internal.h>
-#include <lttng/location-internal.h>
-#include <lttng/rotate-internal.h>
-#include <lttng/session-descriptor-internal.h>
-#include <lttng/session-internal.h>
-#include <lttng/trigger/trigger-internal.h>
-#include <lttng/userspace-probe-internal.h>
-
-#include "agent-thread.h"
-#include "agent.h"
-#include "buffer-registry.h"
-#include "channel.h"
-#include "cmd.h"
-#include "consumer.h"
-#include "event-notifier-error-accounting.h"
-#include "event.h"
-#include "health-sessiond.h"
-#include "kernel-consumer.h"
-#include "kernel.h"
-#include "lttng-sessiond.h"
-#include "lttng-syscall.h"
-#include "notification-thread-commands.h"
-#include "notification-thread.h"
-#include "rotate.h"
-#include "rotation-thread.h"
-#include "session.h"
-#include "timer.h"
-#include "tracker.h"
-#include "utils.h"
+#include <lttng/condition/event-rule-matches-internal.hpp>
+#include <lttng/condition/event-rule-matches.h>
+#include <lttng/error-query-internal.hpp>
+#include <lttng/event-internal.hpp>
+#include <lttng/event-rule/event-rule-internal.hpp>
+#include <lttng/event-rule/event-rule.h>
+#include <lttng/location-internal.hpp>
+#include <lttng/lttng-error.h>
+#include <lttng/rotate-internal.hpp>
+#include <lttng/session-descriptor-internal.hpp>
+#include <lttng/session-internal.hpp>
+#include <lttng/tracker.h>
+#include <lttng/trigger/trigger-internal.hpp>
+#include <lttng/userspace-probe-internal.hpp>
+
+#include "agent-thread.hpp"
+#include "agent.hpp"
+#include "buffer-registry.hpp"
+#include "channel.hpp"
+#include "cmd.hpp"
+#include "consumer.hpp"
+#include "event-notifier-error-accounting.hpp"
+#include "event.hpp"
+#include "health-sessiond.hpp"
+#include "kernel-consumer.hpp"
+#include "kernel.hpp"
+#include "lttng-sessiond.hpp"
+#include "lttng-syscall.hpp"
+#include "notification-thread-commands.hpp"
+#include "notification-thread.hpp"
+#include "rotate.hpp"
+#include "rotation-thread.hpp"
+#include "session.hpp"
+#include "timer.hpp"
+#include "tracker.hpp"
+#include "utils.hpp"
/* Sleep for 100ms between each check for the shm path's deletion. */
#define SESSION_DESTROY_SHM_PATH_CHECK_DELAY_US 100000
+static enum lttng_error_code wait_on_path(void *path);
+
+namespace {
struct cmd_destroy_session_reply_context {
int reply_sock_fd;
bool implicit_rotation_on_destroy;
enum lttng_error_code destruction_status;
};
-static enum lttng_error_code wait_on_path(void *path);
-
/*
* Command completion handler that is used by the destroy command
* when a session that has a non-default shm_path is being destroyed.
*
* See comment in cmd_destroy_session() for the rationale.
*/
-static struct destroy_completion_handler {
+struct destroy_completion_handler {
struct cmd_completion_handler handler;
char shm_path[member_sizeof(struct ltt_session, shm_path)];
} destroy_completion_handler = {
.shm_path = { 0 },
};
-static struct cmd_completion_handler *current_completion_handler;
-
/*
* Used to keep a unique index for each relayd socket created where this value
* is associated with streams on the consumer so it can match the right relayd
* to send to. It must be accessed with the relayd_net_seq_idx_lock
* held.
*/
-static pthread_mutex_t relayd_net_seq_idx_lock = PTHREAD_MUTEX_INITIALIZER;
-static uint64_t relayd_net_seq_idx;
+pthread_mutex_t relayd_net_seq_idx_lock = PTHREAD_MUTEX_INITIALIZER;
+uint64_t relayd_net_seq_idx;
+} /* namespace */
+static struct cmd_completion_handler *current_completion_handler;
static int validate_ust_event_name(const char *);
static int cmd_enable_event_internal(struct ltt_session *session,
const struct lttng_domain *domain,
struct lttng_bytecode *filter,
struct lttng_event_exclusion *exclusion,
int wpipe);
-static int cmd_enable_channel_internal(struct ltt_session *session,
+static enum lttng_error_code cmd_enable_channel_internal(
+ struct ltt_session *session,
const struct lttng_domain *domain,
const struct lttng_channel *_attr,
int wpipe);
node = lttng_ht_iter_get_node_str(&iter);
if (node == NULL) {
ret_code = LTTNG_ERR_UST_CHAN_NOT_FOUND;
- goto end;
+ goto error;
}
uchan = caa_container_of(&node->node, struct ltt_ust_channel, node.node);
tmp_event = lttng_event_create();
if (!tmp_event) {
ret_code = LTTNG_ERR_NOMEM;
- goto end;
+ goto error;
}
if (lttng_strncpy(tmp_event->name, uevent->attr.name,
LTTNG_SYMBOL_NAME_LEN)) {
ret_code = LTTNG_ERR_FATAL;
lttng_event_destroy(tmp_event);
- goto end;
+ goto error;
}
tmp_event->name[LTTNG_SYMBOL_NAME_LEN - 1] = '\0';
* Returns LTTNG_OK, or an LTTng error code on failure.
*/
static enum lttng_error_code send_consumer_relayd_sockets(
- enum lttng_domain_type domain,
unsigned int session_id, struct consumer_output *consumer,
struct consumer_socket *sock, const char *session_name,
const char *hostname, const char *base_path, int session_live_timer,
cds_lfht_for_each_entry(usess->consumer->socks->ht, &iter.iter,
socket, node.node) {
pthread_mutex_lock(socket->lock);
- ret = send_consumer_relayd_sockets(LTTNG_DOMAIN_UST, session->id,
+ ret = send_consumer_relayd_sockets(session->id,
usess->consumer, socket,
session->name, session->hostname,
session->base_path,
cds_lfht_for_each_entry(ksess->consumer->socks->ht, &iter.iter,
socket, node.node) {
pthread_mutex_lock(socket->lock);
- ret = send_consumer_relayd_sockets(LTTNG_DOMAIN_KERNEL, session->id,
+ ret = send_consumer_relayd_sockets(session->id,
ksess->consumer, socket,
session->name, session->hostname,
session->base_path,
return ret;
}
-static int cmd_enable_channel_internal(struct ltt_session *session,
+static enum lttng_error_code cmd_enable_channel_internal(
+ struct ltt_session *session,
const struct lttng_domain *domain,
const struct lttng_channel *_attr,
int wpipe)
{
- int ret;
+ enum lttng_error_code ret_code;
struct ltt_ust_session *usess = session->ust_session;
struct lttng_ht *chan_ht;
size_t len;
attr = lttng_channel_copy(_attr);
if (!attr) {
- ret = -LTTNG_ERR_NOMEM;
+ ret_code = LTTNG_ERR_NOMEM;
goto end;
}
/* Validate channel name */
if (attr->name[0] == '.' ||
memchr(attr->name, '/', len) != NULL) {
- ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+ ret_code = LTTNG_ERR_INVALID_CHANNEL_NAME;
goto end;
}
case LTTNG_DOMAIN_PYTHON:
if (!agent_tracing_is_enabled()) {
DBG("Attempted to enable a channel in an agent domain but the agent thread is not running");
- ret = LTTNG_ERR_AGENT_TRACING_DISABLED;
+ ret_code = LTTNG_ERR_AGENT_TRACING_DISABLED;
goto error;
}
break;
default:
- ret = LTTNG_ERR_UNKNOWN_DOMAIN;
+ ret_code = LTTNG_ERR_UNKNOWN_DOMAIN;
goto error;
}
* some point in time before. The tracer does not allow it.
*/
if (session->has_been_started) {
- ret = LTTNG_ERR_TRACE_ALREADY_STARTED;
+ ret_code = LTTNG_ERR_TRACE_ALREADY_STARTED;
goto error;
}
/* Enforce mmap output for snapshot sessions. */
attr->attr.output = LTTNG_EVENT_MMAP;
}
- ret = channel_kernel_create(
+ ret_code = channel_kernel_create(
session->kernel_session, attr, wpipe);
if (attr->name[0] != '\0') {
session->kernel_session->has_non_default_channel = 1;
}
} else {
- ret = channel_kernel_enable(session->kernel_session, kchan);
+ ret_code = channel_kernel_enable(session->kernel_session, kchan);
}
- if (ret != LTTNG_OK) {
+ if (ret_code != LTTNG_OK) {
goto error;
}
if (domain->type == LTTNG_DOMAIN_JUL) {
if (strncmp(attr->name, DEFAULT_JUL_CHANNEL_NAME,
LTTNG_SYMBOL_NAME_LEN)) {
- ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+ ret_code = LTTNG_ERR_INVALID_CHANNEL_NAME;
goto error;
}
} else if (domain->type == LTTNG_DOMAIN_LOG4J) {
if (strncmp(attr->name, DEFAULT_LOG4J_CHANNEL_NAME,
LTTNG_SYMBOL_NAME_LEN)) {
- ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+ ret_code = LTTNG_ERR_INVALID_CHANNEL_NAME;
goto error;
}
} else if (domain->type == LTTNG_DOMAIN_PYTHON) {
if (strncmp(attr->name, DEFAULT_PYTHON_CHANNEL_NAME,
LTTNG_SYMBOL_NAME_LEN)) {
- ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+ ret_code = LTTNG_ERR_INVALID_CHANNEL_NAME;
goto error;
}
}
* some point in time before. The tracer does not allow it.
*/
if (session->has_been_started) {
- ret = LTTNG_ERR_TRACE_ALREADY_STARTED;
+ ret_code = LTTNG_ERR_TRACE_ALREADY_STARTED;
goto error;
}
- ret = channel_ust_create(usess, attr, domain->buf_type);
+ ret_code = channel_ust_create(usess, attr, domain->buf_type);
if (attr->name[0] != '\0') {
usess->has_non_default_channel = 1;
}
} else {
- ret = channel_ust_enable(usess, uchan);
+ ret_code = channel_ust_enable(usess, uchan);
}
break;
}
default:
- ret = LTTNG_ERR_UNKNOWN_DOMAIN;
+ ret_code = LTTNG_ERR_UNKNOWN_DOMAIN;
goto error;
}
- if (ret == LTTNG_OK && attr->attr.output != LTTNG_EVENT_MMAP) {
+ if (ret_code == LTTNG_OK && attr->attr.output != LTTNG_EVENT_MMAP) {
session->has_non_mmap_channel = true;
}
error:
rcu_read_unlock();
end:
lttng_channel_destroy(attr);
- return ret;
+ return ret_code;
}
enum lttng_error_code cmd_process_attr_tracker_get_tracking_policy(
/*
* Command LTTNG_ADD_CONTEXT processed by the client thread.
*/
-int cmd_add_context(struct ltt_session *session, enum lttng_domain_type domain,
- char *channel_name, const struct lttng_event_context *ctx, int kwpipe)
+int cmd_add_context(struct command_ctx *cmd_ctx,
+ const struct lttng_event_context *event_context, int kwpipe)
{
int ret, chan_kern_created = 0, chan_ust_created = 0;
- char *app_ctx_provider_name = NULL, *app_ctx_name = NULL;
+ const enum lttng_domain_type domain = cmd_ctx->lsm.domain.type;
+ const struct ltt_session *session = cmd_ctx->session;
+ const char *channel_name = cmd_ctx->lsm.u.context.channel_name;
/*
* Don't try to add a context if the session has been started at
* some point in time before. The tracer does not allow it and would
* result in a corrupted trace.
*/
- if (session->has_been_started) {
+ if (cmd_ctx->session->has_been_started) {
ret = LTTNG_ERR_TRACE_ALREADY_STARTED;
goto end;
}
- if (ctx->ctx == LTTNG_EVENT_CONTEXT_APP_CONTEXT) {
- app_ctx_provider_name = ctx->u.app_ctx.provider_name;
- app_ctx_name = ctx->u.app_ctx.ctx_name;
- }
-
switch (domain) {
case LTTNG_DOMAIN_KERNEL:
LTTNG_ASSERT(session->kernel_session);
chan_kern_created = 1;
}
/* Add kernel context to kernel tracer */
- ret = context_kernel_add(session->kernel_session, ctx, channel_name);
+ ret = context_kernel_add(session->kernel_session,
+ event_context, channel_name);
if (ret != LTTNG_OK) {
goto error;
}
ret = LTTNG_ERR_UST_CHAN_NOT_FOUND;
goto error;
}
- /* break is _not_ missing here. */
}
+ /* fall through */
case LTTNG_DOMAIN_UST:
{
struct ltt_ust_session *usess = session->ust_session;
chan_ust_created = 1;
}
- ret = context_ust_add(usess, domain, ctx, channel_name);
- free(app_ctx_provider_name);
- free(app_ctx_name);
- app_ctx_name = NULL;
- app_ctx_provider_name = NULL;
+ ret = context_ust_add(usess, domain, event_context,
+ channel_name);
if (ret != LTTNG_OK) {
goto error;
}
trace_ust_destroy_channel(uchan);
}
end:
- free(app_ctx_provider_name);
- free(app_ctx_name);
return ret;
}
}
}
if (filter) {
- filter_a = (lttng_bytecode *) zmalloc(sizeof(*filter_a) + filter->len);
+ filter_a = zmalloc<lttng_bytecode>(sizeof(*filter_a) + filter->len);
if (!filter_a) {
free(filter_expression_a);
ret = LTTNG_ERR_FATAL;
struct lttng_bytecode)
+ filter->len;
- filter_copy = (lttng_bytecode *) zmalloc(filter_size);
+ filter_copy = zmalloc<lttng_bytecode>(filter_size);
if (!filter_copy) {
ret = LTTNG_ERR_NOMEM;
goto error;
/*
* Command LTTNG_LIST_TRACEPOINT_FIELDS processed by the client thread.
*/
-ssize_t cmd_list_tracepoint_fields(enum lttng_domain_type domain,
- struct lttng_event_field **fields)
+enum lttng_error_code cmd_list_tracepoint_fields(enum lttng_domain_type domain,
+ struct lttng_payload *reply)
{
+ enum lttng_error_code ret_code;
int ret;
- ssize_t nb_fields = 0;
+ unsigned int i, nb_fields;
+ struct lttng_event_field *fields = NULL;
+ struct lttcomm_list_command_header reply_command_header = {};
+ size_t reply_command_header_offset;
+
+ assert(reply);
+
+ /* Reserve space for command reply header. */
+ reply_command_header_offset = reply->buffer.size;
+ ret = lttng_dynamic_buffer_set_size(&reply->buffer,
+ reply_command_header_offset +
+ sizeof(struct lttcomm_list_command_header));
+ if (ret) {
+ ret_code = LTTNG_ERR_NOMEM;
+ goto error;
+ }
switch (domain) {
case LTTNG_DOMAIN_UST:
- nb_fields = ust_app_list_event_fields(fields);
- if (nb_fields < 0) {
- ret = LTTNG_ERR_UST_LIST_FAIL;
+ ret = ust_app_list_event_fields(&fields);
+ if (ret < 0) {
+ ret_code = LTTNG_ERR_UST_LIST_FAIL;
goto error;
}
+
break;
case LTTNG_DOMAIN_KERNEL:
default: /* fall-through */
- ret = LTTNG_ERR_UND;
+ ret_code = LTTNG_ERR_UND;
+ goto error;
+ }
+
+ nb_fields = ret;
+
+ for (i = 0; i < nb_fields; i++) {
+ ret = lttng_event_field_serialize(&fields[i], reply);
+ if (ret) {
+ ret_code = LTTNG_ERR_NOMEM;
+ goto error;
+ }
+ }
+
+ if (nb_fields > UINT32_MAX) {
+ ERR("Tracepoint field count would overflow the tracepoint field listing command's reply");
+ ret_code = LTTNG_ERR_OVERFLOW;
goto error;
}
- return nb_fields;
+ /* Update command reply header. */
+ reply_command_header.count = (uint32_t) nb_fields;
+
+ memcpy(reply->buffer.data + reply_command_header_offset, &reply_command_header,
+ sizeof(reply_command_header));
+
+ ret_code = LTTNG_OK;
error:
- /* Return negative value to differentiate return code */
- return -ret;
+ free(fields);
+ return ret_code;
}
enum lttng_error_code cmd_list_syscalls(
*/
session->rotated_after_last_stop = false;
- if (session->rotate_timer_period) {
+ if (session->rotate_timer_period && !session->rotation_schedule_timer_enabled) {
int int_ret = timer_session_rotation_schedule_timer_start(
session, session->rotate_timer_period);
.cmd_header_size =
sizeof(struct lttcomm_session_destroy_command_header),
.data_size = 0,
+ .fd_count = 0,
};
size_t payload_size_before_location;
struct cmd_destroy_session_reply_context *reply_context = NULL;
if (sock_fd) {
- reply_context = (cmd_destroy_session_reply_context *) zmalloc(sizeof(*reply_context));
+ reply_context = zmalloc<cmd_destroy_session_reply_context>();
if (!reply_context) {
ret = LTTNG_ERR_NOMEM;
goto end;
}
+
reply_context->reply_sock_fd = *sock_fd;
}
goto error;
}
- socket->lock = (pthread_mutex_t *) zmalloc(sizeof(pthread_mutex_t));
+ socket->lock = zmalloc<pthread_mutex_t>();
if (socket->lock == NULL) {
PERROR("zmalloc pthread mutex");
ret = LTTNG_ERR_FATAL;
goto error;
}
+
pthread_mutex_init(socket->lock, NULL);
socket->registered = 1;
goto end;
}
- *domains = (lttng_domain *) zmalloc(nb_dom * sizeof(struct lttng_domain));
+ *domains = calloc<lttng_domain>(nb_dom);
if (*domains == NULL) {
ret = LTTNG_ERR_FATAL;
goto error;
channel = trace_ust_channel_to_lttng_channel(uchan);
if (!channel) {
- ret = LTTNG_ERR_NOMEM;
- break;
+ ret_code = LTTNG_ERR_NOMEM;
+ goto end;
}
extended = (struct lttng_channel_extended *)
if (ret < 0) {
lttng_channel_destroy(channel);
ret_code = LTTNG_ERR_UNK;
- break;
+ goto end;
}
extended->discarded_events = discarded_events;
if (ret) {
ERR("Failed to serialize lttng_channel: channel name = '%s'",
channel->name);
+ lttng_channel_destroy(channel);
ret_code = LTTNG_ERR_UNK;
- ret = -1;
- break;
+ goto end;
}
+ lttng_channel_destroy(channel);
i++;
}
rcu_read_unlock();
enum lttng_error_code ret_code = LTTNG_OK;
struct lttcomm_list_command_header reply_command_header = {};
size_t reply_command_header_offset;
- unsigned int nb_events;
+ unsigned int nb_events = 0;
assert(reply_payload);
goto end;
}
- list = (lttng_snapshot_output *) zmalloc(session->snapshot.nb_output * sizeof(*list));
+ list = calloc<lttng_snapshot_output>(session->snapshot.nb_output);
if (!list) {
ret = -LTTNG_ERR_NOMEM;
goto end;
struct ust_registry_event *event;
struct lttng_ht_iter iter_event;
+ chan->metadata_dumped = 0;
+
ret = ust_metadata_channel_statedump(registry, chan);
if (ret) {
pthread_mutex_unlock(®istry->lock);
"(err = %d)", ret);
goto end;
}
- cds_lfht_for_each_entry(chan->ht->ht, &iter_event.iter,
- event, node.node) {
+ cds_lfht_for_each_entry(chan->events->ht, &iter_event.iter,
+ event, node.node) {
+ event->metadata_dumped = 0;
ret = ust_metadata_event_statedump(registry,
chan, event);
if (ret) {
cds_lfht_for_each_entry(output->socks->ht, &iter.iter,
socket, node.node) {
pthread_mutex_lock(socket->lock);
- status = send_consumer_relayd_sockets(LTTNG_DOMAIN_NONE, session->id,
+ status = send_consumer_relayd_sockets(session->id,
output, socket,
session->name, session->hostname,
base_path,
struct ltt_kernel_session *ksess,
const struct consumer_output *output,
const struct ltt_session *session,
- int wait, uint64_t nb_packets_per_stream)
+ uint64_t nb_packets_per_stream)
{
enum lttng_error_code status;
LTTNG_ASSERT(session);
status = kernel_snapshot_record(
- ksess, output, wait, nb_packets_per_stream);
+ ksess, output, nb_packets_per_stream);
return status;
}
static enum lttng_error_code record_ust_snapshot(struct ltt_ust_session *usess,
const struct consumer_output *output,
const struct ltt_session *session,
- int wait, uint64_t nb_packets_per_stream)
+ uint64_t nb_packets_per_stream)
{
enum lttng_error_code status;
LTTNG_ASSERT(session);
status = ust_app_snapshot_record(
- usess, output, wait, nb_packets_per_stream);
+ usess, output, nb_packets_per_stream);
return status;
}
static
enum lttng_error_code snapshot_record(struct ltt_session *session,
- const struct snapshot_output *snapshot_output, int wait)
+ const struct snapshot_output *snapshot_output)
{
int64_t nb_packets_per_stream;
char snapshot_chunk_name[LTTNG_NAME_MAX];
if (session->kernel_session) {
ret_code = record_kernel_snapshot(session->kernel_session,
snapshot_kernel_consumer_output, session,
- wait, nb_packets_per_stream);
+ nb_packets_per_stream);
if (ret_code != LTTNG_OK) {
goto error_close_trace_chunk;
}
if (session->ust_session) {
ret_code = record_ust_snapshot(session->ust_session,
snapshot_ust_consumer_output, session,
- wait, nb_packets_per_stream);
+ nb_packets_per_stream);
if (ret_code != LTTNG_OK) {
goto error_close_trace_chunk;
}
* Return LTTNG_OK on success or else a LTTNG_ERR code.
*/
int cmd_snapshot_record(struct ltt_session *session,
- const struct lttng_snapshot_output *output, int wait)
+ const struct lttng_snapshot_output *output,
+ int wait __attribute__((unused)))
{
enum lttng_error_code cmd_ret = LTTNG_OK;
int ret;
/* Use the global datetime */
memcpy(tmp_output->datetime, datetime, sizeof(datetime));
- cmd_ret = snapshot_record(session, tmp_output, wait);
+ cmd_ret = snapshot_record(session, tmp_output);
if (cmd_ret != LTTNG_OK) {
goto error;
}
}
}
- cmd_ret = snapshot_record(session, &output_copy, wait);
+ cmd_ret = snapshot_record(session, &output_copy);
if (cmd_ret != LTTNG_OK) {
rcu_read_unlock();
goto error;
projects / lttng-tools.git / blobdiff