*/
#define _LGPL_SOURCE
-#include <lttng/event.h>
-#include <lttng/lttng-error.h>
+#include <assert.h>
#include <stddef.h>
+
+#include <common/error.h>
#include <common/sessiond-comm/sessiond-comm.h>
+#include <lttng/event-internal.h>
+#include <lttng/event.h>
+#include <lttng/lttng-error.h>
+#include <lttng/userspace-probe-internal.h>
+
+struct lttng_event *lttng_event_create(void)
+{
+ struct lttng_event *event;
+ struct lttng_event_extended *event_extended;
+
+ event = zmalloc(sizeof(*event));
+ if (!event) {
+ PERROR("Error allocating event structure");
+ goto end;
+ }
+
+ event_extended = zmalloc(sizeof(*event_extended));
+ if (!event_extended) {
+ PERROR("Error allocating event extended structure");
+ goto error;
+ }
+ event->extended.ptr = event_extended;
+end:
+ return event;
+error:
+ free(event);
+ event = NULL;
+ goto end;
+}
+
+void lttng_event_destroy(struct lttng_event *event)
+{
+ struct lttng_event_extended *event_extended;
+
+ if (!event) {
+ return;
+ }
+
+ event_extended = (struct lttng_event_extended *) event->extended.ptr;
+
+ if (event_extended) {
+ if (event_extended->probe_location) {
+ lttng_userspace_probe_location_destroy(
+ event_extended->probe_location);
+ }
+ free(event_extended);
+ }
+ free(event);
+}
int lttng_event_get_filter_expression(struct lttng_event *event,
const char **filter_expression)
{
int ret = 0;
- struct lttcomm_event_extended_header *ext_header;
+ struct lttng_event_extended *event_extended;
if (!event || !filter_expression) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
- ext_header = event->extended.ptr;
-
- if (!ext_header) {
+ event_extended = (struct lttng_event_extended *) event->extended.ptr;
+ if (!event_extended) {
/*
* This can happen since the lttng_event structure is
* used for other tasks where this pointer is never set.
goto end;
}
- if (ext_header->filter_len) {
- *filter_expression = ((const char *) (ext_header)) +
- sizeof(*ext_header);
- } else {
- *filter_expression = NULL;
- }
-
+ *filter_expression = event_extended->filter_expression;
end:
return ret;
}
int lttng_event_get_exclusion_name_count(struct lttng_event *event)
{
- int ret;
- struct lttcomm_event_extended_header *ext_header;
+ int ret = 0;
+ struct lttng_event_extended *event_extended;
if (!event) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
- ext_header = event->extended.ptr;
- if (!ext_header) {
+ event_extended = (struct lttng_event_extended *) event->extended.ptr;
+ if (!event_extended) {
/*
* 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) {
+ if (event_extended->exclusions.count > INT_MAX) {
ret = -LTTNG_ERR_OVERFLOW;
goto end;
}
- ret = (int) ext_header->nb_exclusions;
+ ret = (int) event_extended->exclusions.count;
end:
return ret;
}
size_t index, const char **exclusion_name)
{
int ret = 0;
- struct lttcomm_event_extended_header *ext_header;
- void *at;
+ struct lttng_event_extended *event_extended;
if (!event || !exclusion_name) {
ret = -LTTNG_ERR_INVALID;
goto end;
}
- ext_header = event->extended.ptr;
- if (!ext_header) {
+ if (index > UINT_MAX) {
+ ret = -LTTNG_ERR_OVERFLOW;
+ goto end;
+ }
+
+ event_extended = (struct lttng_event_extended *) event->extended.ptr;
+ if (!event_extended) {
+ /*
+ * This can happen since the lttng_event structure is
+ * used for other tasks where this pointer is never set.
+ */
ret = -LTTNG_ERR_INVALID;
goto end;
}
- if (index >= ext_header->nb_exclusions) {
+ if (index >= event_extended->exclusions.count) {
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;
+ *exclusion_name = event_extended->exclusions.strings +
+ (index * LTTNG_SYMBOL_NAME_LEN);
+end:
+ return ret;
+}
+
+const struct lttng_userspace_probe_location *
+lttng_event_get_userspace_probe_location(const struct lttng_event *event)
+{
+ struct lttng_userspace_probe_location *probe_location = NULL;
+ struct lttng_event_extended *event_extended;
+ if (!event) {
+ goto end;
+ }
+
+ event_extended = (struct lttng_event_extended *) event->extended.ptr;
+ if (!event_extended) {
+ goto end;
+ }
+ probe_location = event_extended->probe_location;
+end:
+ return probe_location;
+}
+
+int lttng_event_set_userspace_probe_location(struct lttng_event *event,
+ struct lttng_userspace_probe_location *probe_location)
+{
+ int ret = 0;
+ struct lttng_event_extended *event_extended;
+
+ if (!event || !probe_location) {
+ ret = -LTTNG_ERR_INVALID;
+ goto end;
+ }
+
+ event_extended = (struct lttng_event_extended *) event->extended.ptr;
+ assert(event_extended);
+ if (event_extended->probe_location) {
+ lttng_userspace_probe_location_destroy(
+ event_extended->probe_location);
+ }
+ event_extended->probe_location = probe_location;
end:
return ret;
}