trigger: implement listing of registered trigger

[lttng-tools.git] / src / common / buffer-usage.c

diff --git a/src/common/buffer-usage.c b/src/common/buffer-usage.c
index 92081c9103261254b02ff43c0a18f2697959e7f0..5f68608001a43d3559d527541c974e8edc0eef73 100644 (file)
--- a/src/common/buffer-usage.c
+++ b/src/common/buffer-usage.c
@@ -91,7 +91,7 @@ end:
 static
 int lttng_condition_buffer_usage_serialize(
                const struct lttng_condition *condition,
-               struct lttng_dynamic_buffer *buf)
+               struct lttng_payload *payload)
 {
        int ret;
        struct lttng_condition_buffer_usage *usage;
@@ -134,17 +134,19 @@ int lttng_condition_buffer_usage_serialize(
                usage_comm.threshold = val;
        }
 
-       ret = lttng_dynamic_buffer_append(buf, &usage_comm,
+       ret = lttng_dynamic_buffer_append(&payload->buffer, &usage_comm,
                        sizeof(usage_comm));
        if (ret) {
                goto end;
        }
-       ret = lttng_dynamic_buffer_append(buf, usage->session_name,
+
+       ret = lttng_dynamic_buffer_append(&payload->buffer, usage->session_name,
                        session_name_len);
        if (ret) {
                goto end;
        }
-       ret = lttng_dynamic_buffer_append(buf, usage->channel_name,
+
+       ret = lttng_dynamic_buffer_append(&payload->buffer, usage->channel_name,
                        channel_name_len);
        if (ret) {
                goto end;
@@ -243,24 +245,27 @@ struct lttng_condition *lttng_condition_buffer_usage_high_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;
        enum lttng_domain_type domain_type;
-       const struct lttng_condition_buffer_usage_comm *condition_comm;
        const char *session_name, *channel_name;
        struct lttng_buffer_view names_view;
+       const struct lttng_condition_buffer_usage_comm *condition_comm;
+       const 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_buffer_usage_comm *) src_view->data;
-       names_view = lttng_buffer_view_from_view(src_view,
+       condition_comm = (typeof(condition_comm)) condition_comm_view.buffer.data;
+       names_view = lttng_buffer_view_from_view(&src_view->buffer,
                        sizeof(*condition_comm), -1);
 
        if (condition_comm->session_name_len > LTTNG_NAME_MAX ||
@@ -286,6 +291,7 @@ ssize_t init_condition_from_buffer(struct lttng_condition *condition,
                                condition,
                                fixed_to_double(condition_comm->threshold));
        }
+
        if (status != LTTNG_CONDITION_STATUS_OK) {
                ERR("Failed to initialize buffer usage condition threshold");
                ret = -1;
@@ -354,8 +360,8 @@ end:
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_condition_buffer_usage_low_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_condition_buffer_usage_low_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_condition **_condition)
 {
        ssize_t ret;
@@ -367,7 +373,7 @@ ssize_t lttng_condition_buffer_usage_low_create_from_buffer(
                goto error;
        }
 
-       ret = init_condition_from_buffer(condition, view);
+       ret = init_condition_from_payload(condition, view);
        if (ret < 0) {
                goto error;
        }
@@ -380,8 +386,8 @@ error:
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_condition_buffer_usage_high_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_condition_buffer_usage_high_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_condition **_condition)
 {
        ssize_t ret;
@@ -393,7 +399,7 @@ ssize_t lttng_condition_buffer_usage_high_create_from_buffer(
                goto error;
        }
 
-       ret = init_condition_from_buffer(condition, view);
+       ret = init_condition_from_payload(condition, view);
        if (ret < 0) {
                goto error;
        }
@@ -406,15 +412,15 @@ error:
 }
 
 static
-struct lttng_evaluation *create_evaluation_from_buffer(
+struct lttng_evaluation *create_evaluation_from_payload(
                enum lttng_condition_type type,
-               const struct lttng_buffer_view *view)
+               struct lttng_payload_view *view)
 {
        const struct lttng_evaluation_buffer_usage_comm *comm =
-                       (const struct lttng_evaluation_buffer_usage_comm *) view->data;
+                       (typeof(comm)) view->buffer.data;
        struct lttng_evaluation *evaluation = NULL;
 
-       if (view->size < sizeof(*comm)) {
+       if (view->buffer.size < sizeof(*comm)) {
                goto end;
        }
 
@@ -425,8 +431,8 @@ end:
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_evaluation_buffer_usage_low_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_evaluation_buffer_usage_low_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_evaluation **_evaluation)
 {
        ssize_t ret;
@@ -437,7 +443,7 @@ ssize_t lttng_evaluation_buffer_usage_low_create_from_buffer(
                goto error;
        }
 
-       evaluation = create_evaluation_from_buffer(
+       evaluation = create_evaluation_from_payload(
                        LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW, view);
        if (!evaluation) {
                ret = -1;
@@ -453,8 +459,8 @@ error:
 }
 
 LTTNG_HIDDEN
-ssize_t lttng_evaluation_buffer_usage_high_create_from_buffer(
-               const struct lttng_buffer_view *view,
+ssize_t lttng_evaluation_buffer_usage_high_create_from_payload(
+               struct lttng_payload_view *view,
                struct lttng_evaluation **_evaluation)
 {
        ssize_t ret;
@@ -465,7 +471,7 @@ ssize_t lttng_evaluation_buffer_usage_high_create_from_buffer(
                goto error;
        }
 
-       evaluation = create_evaluation_from_buffer(
+       evaluation = create_evaluation_from_payload(
                        LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH, view);
        if (!evaluation) {
                ret = -1;
@@ -730,7 +736,7 @@ end:
 static
 int lttng_evaluation_buffer_usage_serialize(
                const struct lttng_evaluation *evaluation,
-               struct lttng_dynamic_buffer *buf)
+               struct lttng_payload *payload)
 {
        struct lttng_evaluation_buffer_usage *usage;
        struct lttng_evaluation_buffer_usage_comm comm;
@@ -740,7 +746,8 @@ int lttng_evaluation_buffer_usage_serialize(
        comm.buffer_use = usage->buffer_use;
        comm.buffer_capacity = usage->buffer_capacity;
 
-       return lttng_dynamic_buffer_append(buf, &comm, sizeof(comm));
+       return lttng_dynamic_buffer_append(
+                       &payload->buffer, &comm, sizeof(comm));
 }
 
 static