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Add UST snapshot support
[lttng-tools.git]
/
src
/
bin
/
lttng-sessiond
/
ust-consumer.c
diff --git
a/src/bin/lttng-sessiond/ust-consumer.c
b/src/bin/lttng-sessiond/ust-consumer.c
index 7f01de9ea55516223a78fc885886aa774485f934..9f3557cd0d02efa77f0e41be54bcc06d670b210e 100644
(file)
--- a/
src/bin/lttng-sessiond/ust-consumer.c
+++ b/
src/bin/lttng-sessiond/ust-consumer.c
@@
-61,7
+61,7
@@
static char *setup_trace_path(struct consumer_output *consumer,
/* Get correct path name destination */
if (consumer->type == CONSUMER_DST_LOCAL) {
/* Set application path to the destination path */
/* Get correct path name destination */
if (consumer->type == CONSUMER_DST_LOCAL) {
/* Set application path to the destination path */
- ret = snprintf(pathname, PATH_MAX, "%s
/%s/
%s",
+ ret = snprintf(pathname, PATH_MAX, "%s
%s
%s",
consumer->dst.trace_path, consumer->subdir, ua_sess->path);
if (ret < 0) {
PERROR("snprintf channel path");
consumer->dst.trace_path, consumer->subdir, ua_sess->path);
if (ret < 0) {
PERROR("snprintf channel path");
@@
-78,7
+78,7
@@
static char *setup_trace_path(struct consumer_output *consumer,
}
}
} else {
}
}
} else {
- ret = snprintf(pathname, PATH_MAX, "%s
/
%s", consumer->subdir,
+ ret = snprintf(pathname, PATH_MAX, "%s%s", consumer->subdir,
ua_sess->path);
if (ret < 0) {
PERROR("snprintf channel path");
ua_sess->path);
if (ret < 0) {
PERROR("snprintf channel path");
@@
-118,10
+118,12
@@
static int ask_channel_creation(struct ust_app_session *ua_sess,
DBG2("Asking UST consumer for channel");
/* Get and create full trace path of session. */
DBG2("Asking UST consumer for channel");
/* Get and create full trace path of session. */
- pathname = setup_trace_path(consumer, ua_sess);
- if (!pathname) {
- ret = -1;
- goto error;
+ if (ua_sess->output_traces) {
+ pathname = setup_trace_path(consumer, ua_sess);
+ if (!pathname) {
+ ret = -1;
+ goto error;
+ }
}
/* Depending on the buffer type, a different channel key is used. */
}
/* Depending on the buffer type, a different channel key is used. */
@@
-155,7
+157,11
@@
static int ask_channel_creation(struct ust_app_session *ua_sess,
consumer->net_seq_index,
ua_chan->key,
registry->uuid,
consumer->net_seq_index,
ua_chan->key,
registry->uuid,
- chan_id);
+ chan_id,
+ ua_chan->tracefile_size,
+ ua_chan->tracefile_count,
+ ua_sess->id,
+ ua_sess->output_traces);
health_code_update();
health_code_update();
@@
-172,7
+178,9
@@
static int ask_channel_creation(struct ust_app_session *ua_sess,
/* Communication protocol error. */
assert(key == ua_chan->key);
/* We need at least one where 1 stream for 1 cpu. */
/* Communication protocol error. */
assert(key == ua_chan->key);
/* We need at least one where 1 stream for 1 cpu. */
- assert(ua_chan->expected_stream_count > 0);
+ if (ua_sess->output_traces) {
+ assert(ua_chan->expected_stream_count > 0);
+ }
DBG2("UST ask channel %" PRIu64 " successfully done with %u stream(s)", key,
ua_chan->expected_stream_count);
DBG2("UST ask channel %" PRIu64 " successfully done with %u stream(s)", key,
ua_chan->expected_stream_count);
@@
-201,6
+209,12
@@
int ust_consumer_ask_channel(struct ust_app_session *ua_sess,
assert(socket->fd >= 0);
assert(registry);
assert(socket->fd >= 0);
assert(registry);
+ if (!consumer->enabled) {
+ ret = -LTTNG_ERR_NO_CONSUMER;
+ DBG3("Consumer is disabled");
+ goto error;
+ }
+
pthread_mutex_lock(socket->lock);
ret = ask_channel_creation(ua_sess, ua_chan, consumer, socket, registry);
pthread_mutex_lock(socket->lock);
ret = ask_channel_creation(ua_sess, ua_chan, consumer, socket, registry);
@@
-437,7
+451,7
@@
int ust_consumer_metadata_request(struct consumer_socket *socket)
goto end;
}
goto end;
}
- DBG("Metadata request received for session %
u
, key %" PRIu64,
+ DBG("Metadata request received for session %
" PRIu64 "
, key %" PRIu64,
request.session_id, request.key);
reg_uid = buffer_reg_uid_find(request.session_id,
request.session_id, request.key);
reg_uid = buffer_reg_uid_find(request.session_id,
@@
-446,10
+460,10
@@
int ust_consumer_metadata_request(struct consumer_socket *socket)
ust_reg = reg_uid->registry->reg.ust;
} else {
struct buffer_reg_pid *reg_pid =
ust_reg = reg_uid->registry->reg.ust;
} else {
struct buffer_reg_pid *reg_pid =
- buffer_reg_pid_find(request.session_id);
+ buffer_reg_pid_find(request.session_id
_per_pid
);
if (!reg_pid) {
if (!reg_pid) {
- DBG("PID registry not found for session id %
u"
,
- request.session_id);
+ DBG("PID registry not found for session id %
" PRIu64
,
+ request.session_id
_per_pid
);
msg.cmd_type = LTTNG_ERR_UND;
(void) consumer_send_msg(socket, &msg);
msg.cmd_type = LTTNG_ERR_UND;
(void) consumer_send_msg(socket, &msg);
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