trigger: implement listing of registered trigger

[lttng-tools.git] / src / common / session-rotation.c

diff --git a/src/common/session-rotation.c b/src/common/session-rotation.c
index f8d4439de06056296e1a2bc269bc37b6b0385c22..7df5ebab0d8daf97324fccdc0dfb55715ae01da5 100644 (file)
--- a/src/common/session-rotation.c
+++ b/src/common/session-rotation.c
@@ -19,7 +19,7 @@ bool lttng_condition_session_rotation_validate(
 static
 int lttng_condition_session_rotation_serialize(
                const struct lttng_condition *condition,
-               struct lttng_dynamic_buffer *buf);
+               struct lttng_payload *payload);
 static
 bool lttng_condition_session_rotation_is_equal(const struct lttng_condition *_a,
                const struct lttng_condition *_b);
@@ -39,7 +39,7 @@ struct lttng_condition rotation_condition_template = {
 static
 int lttng_evaluation_session_rotation_serialize(
                const struct lttng_evaluation *evaluation,
-               struct lttng_dynamic_buffer *buf);
+               struct lttng_payload *payload);
 static
 void lttng_evaluation_session_rotation_destroy(
                struct lttng_evaluation *evaluation);
@@ -95,7 +95,7 @@ end:
 static
 int lttng_condition_session_rotation_serialize(
                const struct lttng_condition *condition,
-               struct lttng_dynamic_buffer *buf)
+               struct lttng_payload *payload)
 {
        int ret;
        size_t session_name_len;
@@ -118,13 +118,13 @@ int lttng_condition_session_rotation_serialize(
        }
 
        rotation_comm.session_name_len = session_name_len;
-       ret = lttng_dynamic_buffer_append(buf, &rotation_comm,
+       ret = lttng_dynamic_buffer_append(&payload->buffer, &rotation_comm,
                        sizeof(rotation_comm));
        if (ret) {
                goto end;
        }
-       ret = lttng_dynamic_buffer_append(buf, rotation->session_name,
-                       session_name_len);
+       ret = lttng_dynamic_buffer_append(&payload->buffer,
+                       rotation->session_name, session_name_len);
        if (ret) {
                goto end;
        }
@@ -202,33 +202,36 @@ struct lttng_condition *lttng_condition_session_rotation_completed_create(void)
 }
 
 static
-ssize_t init_condition_from_buffer(struct lttng_condition *condition,
-               const struct lttng_buffer_view *src_view)
+ssize_t init_condition_from_payload(struct lttng_condition *condition,
+               struct lttng_payload_view *src_view)
 {
        ssize_t ret, condition_size;
        enum lttng_condition_status status;
-       const struct lttng_condition_session_rotation_comm *condition_comm;
        const char *session_name;
        struct lttng_buffer_view name_view;
+       const struct lttng_condition_session_rotation_comm *condition_comm;
+       struct lttng_payload_view condition_comm_view =
+                       lttng_payload_view_from_view(
+                                       src_view, 0, sizeof(*condition_comm));
 
-       if (src_view->size < sizeof(*condition_comm)) {
+       if (!lttng_payload_view_is_valid(&condition_comm_view)) {
                ERR("Failed to initialize from malformed condition buffer: buffer too short to contain header");
                ret = -1;
                goto end;
        }
 
-       condition_comm = (const struct lttng_condition_session_rotation_comm *) src_view->data;
-       name_view = lttng_buffer_view_from_view(src_view,
-                       sizeof(*condition_comm), -1);
+       condition_comm = (typeof(condition_comm)) src_view->buffer.data;
+       name_view = lttng_buffer_view_from_view(&src_view->buffer,
+                                               sizeof(*condition_comm), condition_comm->session_name_len);
 
-       if (condition_comm->session_name_len > LTTNG_NAME_MAX) {
-               ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
+       if (!lttng_buffer_view_is_valid(&name_view)) {
+               ERR("Failed to initialize from malformed condition buffer: buffer too short to contain session name");
                ret = -1;
                goto end;
        }
 
-       if (name_view.size < condition_comm->session_name_len) {
-               ERR("Failed to initialize from malformed condition buffer: buffer too short to contain session name");
+       if (condition_comm->session_name_len > LTTNG_NAME_MAX) {
+               ERR("Failed to initialize from malformed condition buffer: name exceeds LTTNG_MAX_NAME");
                ret = -1;
                goto end;
        }
@@ -261,8 +264,8 @@ end:
 }
 
 static
-ssize_t lttng_condition_session_rotation_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_condition_session_rotation_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_condition **_condition,
                enum lttng_condition_type type)
 {
@@ -286,7 +289,7 @@ ssize_t lttng_condition_session_rotation_create_from_buffer(
                goto error;
        }
 
-       ret = init_condition_from_buffer(condition, view);
+       ret = init_condition_from_payload(condition, view);
        if (ret < 0) {
                goto error;
        }
@@ -299,21 +302,21 @@ error:
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_condition_session_rotation_ongoing_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_condition_session_rotation_ongoing_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_condition **condition)
 {
-       return lttng_condition_session_rotation_create_from_buffer(view,
+       return lttng_condition_session_rotation_create_from_payload(view,
                        condition,
                        LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING);
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_condition_session_rotation_completed_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_condition_session_rotation_completed_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_condition **condition)
 {
-       return lttng_condition_session_rotation_create_from_buffer(view,
+       return lttng_condition_session_rotation_create_from_payload(view,
                        condition,
                        LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED);
 }
@@ -339,27 +342,30 @@ struct lttng_evaluation *lttng_evaluation_session_rotation_create(
 }
 
 static
-ssize_t create_evaluation_from_buffer(
+ssize_t create_evaluation_from_payload(
                enum lttng_condition_type type,
-               const struct lttng_buffer_view *view,
+               struct lttng_payload_view *view,
                struct lttng_evaluation **_evaluation)
 {
        ssize_t ret, size;
        struct lttng_evaluation *evaluation = NULL;
        struct lttng_trace_archive_location *location = NULL;
-       const struct lttng_evaluation_session_rotation_comm *comm =
-                       (const struct lttng_evaluation_session_rotation_comm *) view->data;
-        struct lttng_buffer_view location_view;
+       const struct lttng_evaluation_session_rotation_comm *comm;
+       struct lttng_payload_view comm_view = lttng_payload_view_from_view(
+                       view, 0, sizeof(*comm));
 
-       if (view->size < sizeof(*comm)) {
+       if (!lttng_payload_view_is_valid(&comm_view)) {
                goto error;
        }
 
+       comm = (typeof(comm)) comm_view.buffer.data;
        size = sizeof(*comm);
        if (comm->has_location) {
-               location_view = lttng_buffer_view_from_view(view, sizeof(*comm),
-                               -1);
-               if (!location_view.data) {
+               const struct lttng_buffer_view location_view =
+                               lttng_buffer_view_from_view(
+                                               &view->buffer, sizeof(*comm), -1);
+
+               if (!lttng_buffer_view_is_valid(&location_view)) {
                        goto error;
                }
 
@@ -387,9 +393,9 @@ error:
 }
 
 static
-ssize_t lttng_evaluation_session_rotation_create_from_buffer(
+ssize_t lttng_evaluation_session_rotation_create_from_payload(
                enum lttng_condition_type type,
-               const struct lttng_buffer_view *view,
+               struct lttng_payload_view *view,
                struct lttng_evaluation **_evaluation)
 {
        ssize_t ret;
@@ -400,7 +406,7 @@ ssize_t lttng_evaluation_session_rotation_create_from_buffer(
                goto error;
        }
 
-       ret = create_evaluation_from_buffer(type, view, &evaluation);
+       ret = create_evaluation_from_payload(type, view, &evaluation);
        if (ret < 0) {
                goto error;
        }
@@ -413,21 +419,21 @@ error:
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_evaluation_session_rotation_ongoing_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_evaluation_session_rotation_ongoing_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_evaluation **evaluation)
 {
-       return lttng_evaluation_session_rotation_create_from_buffer(
+       return lttng_evaluation_session_rotation_create_from_payload(
                        LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING,
                        view, evaluation);
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_evaluation_session_rotation_completed_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_evaluation_session_rotation_completed_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_evaluation **evaluation)
 {
-       return lttng_evaluation_session_rotation_create_from_buffer(
+       return lttng_evaluation_session_rotation_create_from_payload(
                        LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED,
                        view, evaluation);
 }
@@ -505,7 +511,7 @@ end:
 static
 int lttng_evaluation_session_rotation_serialize(
                const struct lttng_evaluation *evaluation,
-               struct lttng_dynamic_buffer *buf)
+               struct lttng_payload *payload)
 {
        int ret;
        struct lttng_evaluation_session_rotation *rotation;
@@ -515,7 +521,8 @@ int lttng_evaluation_session_rotation_serialize(
                        struct lttng_evaluation_session_rotation, parent);
        comm.id = rotation->id;
        comm.has_location = !!rotation->location;
-        ret = lttng_dynamic_buffer_append(buf, &comm, sizeof(comm));
+       ret = lttng_dynamic_buffer_append(
+                       &payload->buffer, &comm, sizeof(comm));
        if (ret) {
                goto end;
        }
@@ -523,7 +530,7 @@ int lttng_evaluation_session_rotation_serialize(
                goto end;
        }
        ret = lttng_trace_archive_location_serialize(rotation->location,
-                       buf);
+                       &payload->buffer);
 end:
        return ret;
 }