#include <assert.h>
#include <common/error.h>
#include <lttng/action/action-internal.h>
+#include <lttng/action/group-internal.h>
#include <lttng/action/notify-internal.h>
+#include <lttng/action/rotate-session-internal.h>
+#include <lttng/action/snapshot-session-internal.h>
+#include <lttng/action/start-session-internal.h>
+#include <lttng/action/stop-session-internal.h>
-static const char *lttng_action_type_string(enum lttng_action_type action_type)
+LTTNG_HIDDEN
+const char *lttng_action_type_string(enum lttng_action_type action_type)
{
switch (action_type) {
case LTTNG_ACTION_TYPE_UNKNOWN:
return "UNKNOWN";
+ case LTTNG_ACTION_TYPE_GROUP:
+ return "GROUP";
case LTTNG_ACTION_TYPE_NOTIFY:
return "NOTIFY";
+ case LTTNG_ACTION_TYPE_ROTATE_SESSION:
+ return "ROTATE_SESSION";
+ case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION:
+ return "SNAPSHOT_SESSION";
+ case LTTNG_ACTION_TYPE_START_SESSION:
+ return "START_SESSION";
+ case LTTNG_ACTION_TYPE_STOP_SESSION:
+ return "STOP_SESSION";
default:
return "???";
}
}
-enum lttng_action_type lttng_action_get_type(struct lttng_action *action)
+enum lttng_action_type lttng_action_get_type(const struct lttng_action *action)
{
return action ? action->type : LTTNG_ACTION_TYPE_UNKNOWN;
}
-LTTNG_HIDDEN
-enum lttng_action_type lttng_action_get_type_const(
- const struct lttng_action *action)
-{
- return action->type;
-}
-
LTTNG_HIDDEN
void lttng_action_init(
struct lttng_action *action,
action_equal_cb equal,
action_destroy_cb destroy)
{
+ urcu_ref_init(&action->ref);
action->type = type;
action->validate = validate;
action->serialize = serialize;
action->destroy = destroy;
}
-void lttng_action_destroy(struct lttng_action *action)
+static
+void action_destroy_ref(struct urcu_ref *ref)
+{
+ struct lttng_action *action =
+ container_of(ref, struct lttng_action, ref);
+
+ action->destroy(action);
+}
+
+LTTNG_HIDDEN
+void lttng_action_get(struct lttng_action *action)
+{
+ urcu_ref_get(&action->ref);
+}
+
+LTTNG_HIDDEN
+void lttng_action_put(struct lttng_action *action)
{
if (!action) {
return;
}
assert(action->destroy);
- action->destroy(action);
+ urcu_ref_put(&action->ref, action_destroy_ref);
+}
+
+void lttng_action_destroy(struct lttng_action *action)
+{
+ lttng_action_put(action);
}
LTTNG_HIDDEN
LTTNG_HIDDEN
int lttng_action_serialize(struct lttng_action *action,
- struct lttng_dynamic_buffer *buf)
+ struct lttng_payload *payload)
{
int ret;
struct lttng_action_comm action_comm = {
.action_type = (int8_t) action->type,
};
- ret = lttng_dynamic_buffer_append(buf, &action_comm,
+ ret = lttng_dynamic_buffer_append(&payload->buffer, &action_comm,
sizeof(action_comm));
if (ret) {
goto end;
}
- ret = action->serialize(action, buf);
+ ret = action->serialize(action, payload);
if (ret) {
goto end;
}
}
LTTNG_HIDDEN
-ssize_t lttng_action_create_from_buffer(const struct lttng_buffer_view *view,
+ssize_t lttng_action_create_from_payload(struct lttng_payload_view *view,
struct lttng_action **action)
{
ssize_t consumed_len, specific_action_consumed_len;
+ action_create_from_payload_cb create_from_payload_cb;
const struct lttng_action_comm *action_comm;
- action_create_from_buffer_cb create_from_buffer_cb;
- struct lttng_buffer_view specific_action_view;
+ const struct lttng_payload_view action_comm_view =
+ lttng_payload_view_from_view(
+ view, 0, sizeof(*action_comm));
if (!view || !action) {
consumed_len = -1;
goto end;
}
- action_comm = (const struct lttng_action_comm *) view->data;
+ if (!lttng_payload_view_is_valid(&action_comm_view)) {
+ /* Payload not large enough to contain the header. */
+ consumed_len = -1;
+ goto end;
+ }
- DBG("Create action from buffer: action-type=%s",
+ action_comm = (const struct lttng_action_comm *) action_comm_view.buffer.data;
+
+ DBG("Create action from payload: action-type=%s",
lttng_action_type_string(action_comm->action_type));
switch (action_comm->action_type) {
case LTTNG_ACTION_TYPE_NOTIFY:
- create_from_buffer_cb = lttng_action_notify_create_from_buffer;
+ create_from_payload_cb = lttng_action_notify_create_from_payload;
+ break;
+ case LTTNG_ACTION_TYPE_ROTATE_SESSION:
+ create_from_payload_cb =
+ lttng_action_rotate_session_create_from_payload;
+ break;
+ case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION:
+ create_from_payload_cb =
+ lttng_action_snapshot_session_create_from_payload;
+ break;
+ case LTTNG_ACTION_TYPE_START_SESSION:
+ create_from_payload_cb =
+ lttng_action_start_session_create_from_payload;
+ break;
+ case LTTNG_ACTION_TYPE_STOP_SESSION:
+ create_from_payload_cb =
+ lttng_action_stop_session_create_from_payload;
+ break;
+ case LTTNG_ACTION_TYPE_GROUP:
+ create_from_payload_cb = lttng_action_group_create_from_payload;
break;
default:
- ERR("Failed to create action from buffer, unhandled action type: action-type=%u (%s)",
+ ERR("Failed to create action from payload, unhandled action type: action-type=%u (%s)",
action_comm->action_type,
lttng_action_type_string(
action_comm->action_type));
goto end;
}
- /* Create buffer view for the action-type-specific data. */
- specific_action_view = lttng_buffer_view_from_view(view,
- sizeof(struct lttng_action_comm),
- view->size - sizeof(struct lttng_action_comm));
+ {
+ /* Create buffer view for the action-type-specific data. */
+ struct lttng_payload_view specific_action_view =
+ lttng_payload_view_from_view(view,
+ sizeof(struct lttng_action_comm),
+ -1);
- specific_action_consumed_len =
- create_from_buffer_cb(&specific_action_view, action);
+ specific_action_consumed_len = create_from_payload_cb(
+ &specific_action_view, action);
+ }
if (specific_action_consumed_len < 0) {
ERR("Failed to create specific action from buffer.");
consumed_len = -1;