/*
- * liblttngctl.c
+ * lttng-ctl.c
*
* Linux Trace Toolkit Control Library
*
ret = -LTTNG_ERR_FILTER_INVAL;
goto parse_error;
}
- ret = filter_visitor_set_parent(ctx);
- if (ret) {
- fprintf(stderr, "Set parent error\n");
- ret = -LTTNG_ERR_FILTER_INVAL;
- goto parse_error;
- }
if (print_xml) {
ret = filter_visitor_print_xml(ctx, stdout, 0);
if (ret) {
return ret;
}
-int lttng_event_get_filter_expression(struct lttng_event *event,
- const char **filter_expression)
-{
- int ret = 0;
- struct lttcomm_event_extended_header *ext_header;
-
- if (!event || !filter_expression) {
- ret = -LTTNG_ERR_INVALID;
- goto end;
- }
-
- ext_header = event->extended.ptr;
-
- if (!ext_header) {
- /*
- * This can happen since the lttng_event structure is
- * used for other tasks where this pointer is never set.
- */
- *filter_expression = NULL;
- goto end;
- }
-
- if (ext_header->filter_len) {
- *filter_expression = ((const char *) (ext_header)) +
- sizeof(*ext_header);
- } else {
- *filter_expression = NULL;
- }
-
-end:
- return ret;
-}
-
-int lttng_event_get_exclusion_name_count(struct lttng_event *event)
-{
- int ret;
- struct lttcomm_event_extended_header *ext_header;
-
- if (!event) {
- ret = -LTTNG_ERR_INVALID;
- goto end;
- }
-
- ext_header = event->extended.ptr;
- if (!ext_header) {
- /*
- * This can happen since the lttng_event structure is
- * used for other tasks where this pointer is never set.
- */
- ret = 0;
- goto end;
- }
-
- if (ext_header->nb_exclusions > INT_MAX) {
- ret = -LTTNG_ERR_OVERFLOW;
- goto end;
- }
- ret = (int) ext_header->nb_exclusions;
-end:
- return ret;
-}
-
-int lttng_event_get_exclusion_name(struct lttng_event *event,
- size_t index, const char **exclusion_name)
-{
- int ret = 0;
- struct lttcomm_event_extended_header *ext_header;
- void *at;
-
- if (!event || !exclusion_name) {
- ret = -LTTNG_ERR_INVALID;
- goto end;
- }
-
- ext_header = event->extended.ptr;
- if (!ext_header) {
- ret = -LTTNG_ERR_INVALID;
- goto end;
- }
-
- if (index >= ext_header->nb_exclusions) {
- ret = -LTTNG_ERR_INVALID;
- goto end;
- }
-
- at = (void *) ext_header + sizeof(*ext_header);
- at += ext_header->filter_len;
- at += index * LTTNG_SYMBOL_NAME_LEN;
- *exclusion_name = at;
-
-end:
- return ret;
-}
-
/*
* Sets the tracing_group variable with name.
* This function allocates memory pointed to by tracing_group.
if (extended) {
extended->monitor_timer_interval =
DEFAULT_KERNEL_CHANNEL_MONITOR_TIMER;
+ extended->blocking_timeout =
+ DEFAULT_KERNEL_CHANNEL_BLOCKING_TIMEOUT;
}
break;
case LTTNG_DOMAIN_UST:
if (extended) {
extended->monitor_timer_interval =
DEFAULT_UST_UID_CHANNEL_MONITOR_TIMER;
+ extended->blocking_timeout =
+ DEFAULT_UST_UID_CHANNEL_BLOCKING_TIMEOUT;
}
break;
case LTTNG_BUFFER_PER_PID:
if (extended) {
extended->monitor_timer_interval =
DEFAULT_UST_PID_CHANNEL_MONITOR_TIMER;
+ extended->blocking_timeout =
+ DEFAULT_UST_PID_CHANNEL_BLOCKING_TIMEOUT;
}
break;
}
return ret;
}
+int lttng_channel_get_blocking_timeout(struct lttng_channel *chan,
+ int64_t *blocking_timeout)
+{
+ int ret = 0;
+
+ if (!chan || !blocking_timeout) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ if (!chan->attr.extended.ptr) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ *blocking_timeout = ((struct lttng_channel_extended *)
+ chan->attr.extended.ptr)->blocking_timeout;
+end:
+ return ret;
+}
+
+int lttng_channel_set_blocking_timeout(struct lttng_channel *chan,
+ int64_t blocking_timeout)
+{
+ int ret = 0;
+ int64_t msec_timeout;
+
+ if (!chan || !chan->attr.extended.ptr) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ if (blocking_timeout < 0 && blocking_timeout != -1) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ /*
+ * LTTng-ust's use of poll() to implement this timeout mechanism forces
+ * us to accept a narrower range of values (msecs expressed as a signed
+ * 32-bit integer).
+ */
+ msec_timeout = blocking_timeout / 1000;
+ if (msec_timeout != (int32_t) msec_timeout) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ ((struct lttng_channel_extended *)
+ chan->attr.extended.ptr)->blocking_timeout =
+ blocking_timeout;
+end:
+ return ret;
+}
+
/*
* Check if session daemon is alive.
*
lsm.u.uri.size = size;
+ /*
+ * If the user does not specify a custom subdir, use the session name.
+ */
+ if (size > 0 && uris[0].dtype != LTTNG_DST_PATH && strlen(uris[0].subdir) == 0) {
+ ret = snprintf(uris[0].subdir, sizeof(uris[0].subdir), "%s", name);
+ if (ret < 0) {
+ PERROR("snprintf uri subdir");
+ ret = -LTTNG_ERR_FATAL;
+ goto error;
+ }
+ }
+
ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, uris,
sizeof(struct lttng_uri) * size, NULL);
+error:
free(uris);
return ret;
}
{
int ret;
struct lttcomm_session_msg lsm;
- char *trigger_buf = NULL;
- ssize_t trigger_size;
+ struct lttng_dynamic_buffer buffer;
+ lttng_dynamic_buffer_init(&buffer);
if (!trigger) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
if (!lttng_trigger_validate(trigger)) {
- ret = -LTTNG_ERR_INVALID;
+ ret = -LTTNG_ERR_INVALID_TRIGGER;
goto end;
}
- trigger_size = lttng_trigger_serialize(trigger, NULL);
- if (trigger_size < 0) {
+ ret = lttng_trigger_serialize(trigger, &buffer);
+ if (ret < 0) {
ret = -LTTNG_ERR_UNK;
goto end;
}
- trigger_buf = zmalloc(trigger_size);
- if (!trigger_buf) {
- ret = -LTTNG_ERR_NOMEM;
- goto end;
- }
-
memset(&lsm, 0, sizeof(lsm));
lsm.cmd_type = LTTNG_REGISTER_TRIGGER;
- if (lttng_trigger_serialize(trigger, trigger_buf) < 0) {
- ret = -LTTNG_ERR_UNK;
- goto end;
- }
-
- lsm.u.trigger.length = (uint32_t) trigger_size;
- ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, trigger_buf,
- trigger_size, NULL);
+ lsm.u.trigger.length = (uint32_t) buffer.size;
+ ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, buffer.data,
+ buffer.size, NULL);
end:
- free(trigger_buf);
+ lttng_dynamic_buffer_reset(&buffer);
return ret;
}
{
int ret;
struct lttcomm_session_msg lsm;
- char *trigger_buf = NULL;
- ssize_t trigger_size;
+ struct lttng_dynamic_buffer buffer;
+ lttng_dynamic_buffer_init(&buffer);
if (!trigger) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
if (!lttng_trigger_validate(trigger)) {
- ret = -LTTNG_ERR_INVALID;
+ ret = -LTTNG_ERR_INVALID_TRIGGER;
goto end;
}
- trigger_size = lttng_trigger_serialize(trigger, NULL);
- if (trigger_size < 0) {
+ ret = lttng_trigger_serialize(trigger, &buffer);
+ if (ret < 0) {
ret = -LTTNG_ERR_UNK;
goto end;
}
- trigger_buf = zmalloc(trigger_size);
- if (!trigger_buf) {
- ret = -LTTNG_ERR_NOMEM;
+ memset(&lsm, 0, sizeof(lsm));
+ lsm.cmd_type = LTTNG_UNREGISTER_TRIGGER;
+ lsm.u.trigger.length = (uint32_t) buffer.size;
+ ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, buffer.data,
+ buffer.size, NULL);
+end:
+ lttng_dynamic_buffer_reset(&buffer);
+ return ret;
+}
+
+int lttng_session_get_current_archive_location(const char *session_name,
+ char **chunk_path)
+{
+ struct lttcomm_session_msg lsm;
+ struct lttng_session_get_current_output_return *output_return = NULL;
+ int ret;
+ size_t path_len;
+
+ memset(&lsm, 0, sizeof(lsm));
+ lsm.cmd_type = LTTNG_SESSION_GET_CURRENT_OUTPUT;
+ ret = lttng_strncpy(lsm.session.name, session_name,
+ sizeof(lsm.session.name));
+ if (ret) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ ret = lttng_ctl_ask_sessiond(&lsm, (void **) &output_return);
+ if (ret < 0) {
+ ret = -1;
goto end;
}
- memset(&lsm, 0, sizeof(lsm));
- lsm.cmd_type = LTTNG_UNREGISTER_TRIGGER;
- if (lttng_trigger_serialize(trigger, trigger_buf) < 0) {
- ret = -LTTNG_ERR_UNK;
+ path_len = lttng_strnlen(output_return->path,
+ sizeof(output_return->path));
+ if (path_len == 0 || path_len == sizeof(output_return->path)) {
+ ret = -LTTNG_ERR_NO_SESSION_OUTPUT;
goto end;
}
- lsm.u.trigger.length = (uint32_t) trigger_size;
- ret = lttng_ctl_ask_sessiond_varlen_no_cmd_header(&lsm, trigger_buf,
- trigger_size, NULL);
+ *chunk_path = zmalloc(path_len + 1);
+ if (!*chunk_path) {
+ ret = -1;
+ goto end;
+ }
+ memcpy(*chunk_path, output_return->path, path_len);
+
+ ret = 0;
+
end:
- free(trigger_buf);
+ free(output_return);
return ret;
}
projects / lttng-tools.git / blobdiff