#include <lttng/trigger/trigger.h>
#include <common/macros.h>
+#include <stdint.h>
+#include <stdbool.h>
struct lttng_trigger {
struct lttng_condition *condition;
struct lttng_action *action;
};
+struct lttng_trigger_comm {
+ /* len excludes its own length. */
+ uint32_t len;
+} LTTNG_PACKED;
+
+LTTNG_HIDDEN
+ssize_t lttng_trigger_create_from_buffer(const char *buf,
+ struct lttng_trigger **trigger);
+
+LTTNG_HIDDEN
+ssize_t lttng_trigger_serialize(struct lttng_trigger *trigger, char *buf);
+
+LTTNG_HIDDEN
+bool lttng_trigger_validate(struct lttng_trigger *trigger);
+
#endif /* LTTNG_TRIGGER_INTERNAL_H */
#include <lttng/action/action-internal.h>
#include <assert.h>
+LTTNG_HIDDEN
+bool lttng_trigger_validate(struct lttng_trigger *trigger)
+{
+ bool valid;
+
+ if (!trigger) {
+ valid = false;
+ goto end;
+ }
+
+ valid = lttng_condition_validate(trigger->condition) &&
+ lttng_action_validate(trigger->action);
+end:
+ return valid;
+}
+
struct lttng_trigger *lttng_trigger_create(
struct lttng_condition *condition,
struct lttng_action *action)
free(trigger);
}
+LTTNG_HIDDEN
+ssize_t lttng_trigger_create_from_buffer(const char *buf,
+ struct lttng_trigger **trigger)
+{
+ ssize_t ret, trigger_size;
+ struct lttng_condition *condition = NULL;
+ struct lttng_action *action = NULL;
+
+ if (!buf || !trigger) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = lttng_condition_create_from_buffer(buf, &condition);
+ if (ret < 0) {
+ goto end;
+ }
+
+ trigger_size = ret;
+ buf += ret;
+ ret = lttng_action_create_from_buffer(buf, &action);
+ if (ret < 0) {
+ goto end;
+ }
+
+ trigger_size += ret;
+ *trigger = lttng_trigger_create(condition, action);
+ if (!*trigger) {
+ goto error;
+ }
+ ret = trigger_size;
+end:
+ return ret;
+error:
+ lttng_condition_destroy(condition);
+ lttng_action_destroy(action);
+ return ret;
+}
+
+/*
+ * Returns the size of a trigger's condition and action.
+ * Both elements are stored contiguously, see their "*_comm" structure
+ * for the detailed format.
+ */
+LTTNG_HIDDEN
ssize_t lttng_trigger_serialize(struct lttng_trigger *trigger, char *buf)
{
ssize_t action_size, condition_size, ret;
goto end;
}
+ condition_size = lttng_condition_serialize(trigger->condition, NULL);
+ if (condition_size < 0) {
+ ret = -1;
+ goto end;
+ }
+
+ action_size = lttng_action_serialize(trigger->action, NULL);
+ if (action_size < 0) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = action_size + condition_size;
+ if (!buf) {
+ goto end;
+ }
+
condition_size = lttng_condition_serialize(trigger->condition, buf);
if (condition_size < 0) {
ret = -1;
goto end;
}
+ buf += condition_size;
action_size = lttng_action_serialize(trigger->action, buf);
if (action_size < 0) {
ret = -1;
goto end;
}
- ret = action_size + condition_size;
end:
return ret;
}