#ifndef _LTTNG_H
#define _LTTNG_H
-#include <asm/types.h>
-#include <sys/types.h>
-#include <stdint.h>
#include <limits.h>
+#include <stdint.h>
+#include <sys/types.h>
/* Default unix group name for tracing. */
#define LTTNG_DEFAULT_TRACING_GROUP "tracing"
/*
* Event symbol length. Copied from LTTng kernel ABI.
*/
-#define LTTNG_SYMBOL_NAME_LEN 128
+#define LTTNG_SYMBOL_NAME_LEN 256
/*
* Every lttng_event_* structure both apply to kernel event and user-space
* Instrumentation type of tracing event.
*/
enum lttng_event_type {
- LTTNG_EVENT_TRACEPOINT,
- LTTNG_EVENT_PROBE,
- LTTNG_EVENT_FUNCTION,
- LTTNG_EVENT_FUNCTION_ENTRY,
+ LTTNG_EVENT_ALL = -1,
+ LTTNG_EVENT_TRACEPOINT = 0,
+ LTTNG_EVENT_PROBE = 1,
+ LTTNG_EVENT_FUNCTION = 2,
+ LTTNG_EVENT_FUNCTION_ENTRY = 3,
+ LTTNG_EVENT_NOOP = 4,
+ LTTNG_EVENT_SYSCALL = 5,
+ LTTNG_EVENT_TRACEPOINT_LOGLEVEL = 6,
};
/*
*/
struct lttng_event {
char name[LTTNG_SYMBOL_NAME_LEN];
+ char loglevel[LTTNG_SYMBOL_NAME_LEN];
+ int64_t loglevel_value;
enum lttng_event_type type;
uint32_t enabled;
+ pid_t pid;
/* Per event type configuration */
union {
struct lttng_event_probe_attr probe;
* Channel information structure. For both kernel and user-space.
*/
struct lttng_channel {
- char name[NAME_MAX];
+ char name[LTTNG_SYMBOL_NAME_LEN];
uint32_t enabled;
struct lttng_channel_attr attr;
};
char name[NAME_MAX];
/* The path where traces are written */
char path[PATH_MAX];
+ uint32_t enabled; /* enabled/started: 1, disabled/stopped: 0 */
};
/*
* array.
*
* On error, a negative value is returned being a specific lttng-tools error
- * code which can be humanly interpreted with lttng_get_readable_code(err).
+ * code which can be humanly interpreted with lttng_strerror(err).
*/
/*
* The session will not be useable anymore, tracing will stopped for all
* registered trace and tracing buffers will be flushed.
*/
-extern int lttng_destroy_session(struct lttng_handle *handle);
+extern int lttng_destroy_session(const char *name);
/*
* List all tracing sessions.
*
* Return the size of the "lttng_domain" array. Caller must free(3).
*/
-extern int lttng_list_domains(struct lttng_handle *handle,
+extern int lttng_list_domains(const char *session_name,
struct lttng_domain **domains);
/*
*
* Parameter MUST be a negative value or else you'll get a generic message.
*/
-extern const char *lttng_get_readable_code(int code);
+extern const char *lttng_strerror(int code);
/*
* This call permits to register an "outside consumer" to a session and a lttng
* domain. No consumer will be spawned and all fds/commands will go through the
* socket path given (socket_path).
*
- * NOTE: At the moment, if you use the liblttkconsumerd, you can only use the
+ * NOTE: At the moment, if you use the liblttng-kconsumer, you can only use the
* command socket. The error socket is not supported yet for roaming consumers.
*/
extern int lttng_register_consumer(struct lttng_handle *handle,
/*
* Start tracing for *all* registered trace (kernel and user-space).
*/
-extern int lttng_start_tracing(struct lttng_handle *handle);
+extern int lttng_start_tracing(const char *session_name);
/*
* Stop tracing for *all* registered trace (kernel and user-space).
*/
-extern int lttng_stop_tracing(struct lttng_handle *handle);
+extern int lttng_stop_tracing(const char *session_name);
/*
* Add context to event for a specific channel.
extern int lttng_calibrate(struct lttng_handle *handle,
struct lttng_calibrate *calibrate);
+/*
+ * Set the default channel attributes for a specific domain and an allocated
+ * lttng_channel_attr pointer.
+ */
+extern void lttng_channel_set_default_attr(struct lttng_domain *domain,
+ struct lttng_channel_attr *attr);
+
#endif /* _LTTNG_H */