goto end;
}
- ret = lttcomm_send_unix_sock(sessiond_socket, lsm,
+ ret = lttcomm_send_creds_unix_sock(sessiond_socket, lsm,
sizeof(struct lttcomm_session_msg));
end:
size = llm.data_size;
if (size == 0) {
+ /* If client free with size 0 */
+ if (buf != NULL) {
+ *buf = NULL;
+ }
ret = 0;
goto end;
}
/*
* Start tracing for all trace of the session.
*/
-int lttng_start_tracing(struct lttng_handle *handle)
+int lttng_start_tracing(const char *session_name)
{
struct lttcomm_session_msg lsm;
- if (!handle) {
+ if (session_name == NULL) {
return -1;
}
lsm.cmd_type = LTTNG_START_TRACE;
- copy_string(lsm.session.name, handle->session_name,
- sizeof(lsm.session.name));
+
+ copy_string(lsm.session.name, session_name, sizeof(lsm.session.name));
return ask_sessiond(&lsm, NULL);
}
/*
* Stop tracing for all trace of the session.
*/
-int lttng_stop_tracing(struct lttng_handle *handle)
+int lttng_stop_tracing(const char *session_name)
{
struct lttcomm_session_msg lsm;
+ if (session_name == NULL) {
+ return -1;
+ }
+
lsm.cmd_type = LTTNG_STOP_TRACE;
- copy_string(lsm.session.name, handle->session_name,
- sizeof(lsm.session.name));
+
+ copy_string(lsm.session.name, session_name, sizeof(lsm.session.name));
return ask_sessiond(&lsm, NULL);
}
{
struct lttcomm_session_msg lsm;
- if (!handle) {
+ /* Safety check. Both are mandatory */
+ if (handle == NULL || ctx == NULL) {
return -1;
}
copy_lttng_domain(&lsm.domain, &handle->domain);
- if (ctx) {
- memcpy(&lsm.u.context.ctx, ctx, sizeof(struct lttng_event_context));
- }
+ memcpy(&lsm.u.context.ctx, ctx, sizeof(struct lttng_event_context));
copy_string(lsm.session.name, handle->session_name,
sizeof(lsm.session.name));
{
struct lttcomm_session_msg lsm;
- if (!handle || ev == NULL) {
+ if (handle == NULL || ev == NULL) {
return -1;
}
+ /* If no channel name, we put the default name */
if (channel_name == NULL) {
copy_string(lsm.u.enable.channel_name, DEFAULT_CHANNEL_NAME,
sizeof(lsm.u.enable.channel_name));
{
struct lttcomm_session_msg lsm;
- if (!handle) {
+ if (handle == NULL) {
return -1;
}
{
struct lttcomm_session_msg lsm;
- if (!handle) {
+ /*
+ * NULL arguments are forbidden. No default values.
+ */
+ if (handle == NULL || chan == NULL) {
return -1;
}
- if (chan) {
- memcpy(&lsm.u.channel.chan, chan, sizeof(lsm.u.channel.chan));
- }
+ memcpy(&lsm.u.channel.chan, chan, sizeof(lsm.u.channel.chan));
lsm.cmd_type = LTTNG_ENABLE_CHANNEL;
{
struct lttcomm_session_msg lsm;
- if (!handle) {
+ /* Safety check. Both are mandatory */
+ if (handle == NULL || name == NULL) {
return -1;
}
- if (name) {
- copy_string(lsm.u.disable.channel_name, name,
- sizeof(lsm.u.disable.channel_name));
- }
-
lsm.cmd_type = LTTNG_DISABLE_CHANNEL;
+ copy_string(lsm.u.disable.channel_name, name,
+ sizeof(lsm.u.disable.channel_name));
+
copy_lttng_domain(&lsm.domain, &handle->domain);
copy_string(lsm.session.name, handle->session_name,
int ret;
struct lttcomm_session_msg lsm;
- if (!handle) {
+ if (handle == NULL) {
return -1;
}
/*
* Destroy session using name.
*/
-int lttng_destroy_session(struct lttng_handle *handle)
+int lttng_destroy_session(const char *session_name)
{
struct lttcomm_session_msg lsm;
- if (!handle) {
+ if (session_name == NULL) {
return -1;
}
lsm.cmd_type = LTTNG_DESTROY_SESSION;
- copy_string(lsm.session.name, handle->session_name,
- sizeof(lsm.session.name));
+
+ copy_string(lsm.session.name, session_name, sizeof(lsm.session.name));
return ask_sessiond(&lsm, NULL);
}
/*
* List domain of a session.
*/
-int lttng_list_domains(struct lttng_handle *handle,
+int lttng_list_domains(const char *session_name,
struct lttng_domain **domains)
{
int ret;
struct lttcomm_session_msg lsm;
- if (!handle) {
+ if (session_name == NULL) {
return -1;
}
lsm.cmd_type = LTTNG_LIST_DOMAINS;
- copy_string(lsm.session.name, handle->session_name,
- sizeof(lsm.session.name));
+ copy_string(lsm.session.name, session_name, sizeof(lsm.session.name));
ret = ask_sessiond(&lsm, (void**) domains);
if (ret < 0) {
int ret;
struct lttcomm_session_msg lsm;
- if (!handle) {
+ if (handle == NULL) {
return -1;
}
int ret;
struct lttcomm_session_msg lsm;
- if (!handle) {
+ /* Safety check. An handle and channel name are mandatory */
+ if (handle == NULL || channel_name == NULL) {
return -1;
}
}
/*
- * lttng_set_tracing_group
- *
- * Set tracing group variable with name. This function
- * allocate memory pointed by tracing_group.
+ * Set tracing group variable with name. This function allocate memory pointed
+ * by tracing_group.
*/
int lttng_set_tracing_group(const char *name)
{
+ if (name == NULL) {
+ return -1;
+ }
+
if (asprintf(&tracing_group, "%s", name) < 0) {
return -ENOMEM;
}
{
struct lttcomm_session_msg lsm;
- if (!handle) {
+ /* Safety check. NULL pointer are forbidden */
+ if (handle == NULL || calibrate == NULL) {
return -1;
}
return ask_sessiond(&lsm, NULL);
}
+/*
+ * Set default channel attributes.
+ */
+void lttng_channel_set_default_attr(struct lttng_domain *domain,
+ struct lttng_channel_attr *attr)
+{
+ /* Safety check */
+ if (attr == NULL || domain == NULL) {
+ return;
+ }
+
+ switch (domain->type) {
+ case LTTNG_DOMAIN_KERNEL:
+ attr->overwrite = DEFAULT_CHANNEL_OVERWRITE;
+ attr->switch_timer_interval = DEFAULT_CHANNEL_SWITCH_TIMER;
+ attr->read_timer_interval = DEFAULT_CHANNEL_READ_TIMER;
+
+ attr->subbuf_size = DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE;
+ attr->num_subbuf = DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM;
+ attr->output = DEFAULT_KERNEL_CHANNEL_OUTPUT;
+ break;
+ case LTTNG_DOMAIN_UST:
+ case LTTNG_DOMAIN_UST_EXEC_NAME:
+ case LTTNG_DOMAIN_UST_PID:
+ case LTTNG_DOMAIN_UST_PID_FOLLOW_CHILDREN:
+ attr->overwrite = DEFAULT_CHANNEL_OVERWRITE;
+ attr->switch_timer_interval = DEFAULT_CHANNEL_SWITCH_TIMER;
+ attr->read_timer_interval = DEFAULT_CHANNEL_READ_TIMER;
+
+ attr->subbuf_size = DEFAULT_UST_CHANNEL_SUBBUF_SIZE;
+ attr->num_subbuf = DEFAULT_UST_CHANNEL_SUBBUF_NUM;
+ attr->output = DEFAULT_UST_CHANNEL_OUTPUT;
+ break;
+ default:
+ /* Default behavior */
+ memset(attr, 0, sizeof(struct lttng_channel_attr));
+ break;
+ }
+}
+
/*
* Check if session daemon is alive.
*