listing and activation of loglevel by number

[lttng-tools.git] / include / lttng / lttng.h

diff --git a/include/lttng/lttng.h b/include/lttng/lttng.h
index 3f96a24b695819560047dccf43831ade3fa46609..a137a4385218c91f176c14f1dc83e06b66390119 100644 (file)
--- a/include/lttng/lttng.h
+++ b/include/lttng/lttng.h
@@ -23,10 +23,9 @@
 #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"
@@ -40,7 +39,7 @@
 /*
  * 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
@@ -62,10 +61,14 @@ enum lttng_domain_type {
  * 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,
 };
 
 /*
@@ -141,8 +144,11 @@ struct lttng_event_function_attr {
  */
 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;
@@ -186,6 +192,7 @@ struct lttng_session {
        char name[NAME_MAX];
        /* The path where traces are written */
        char path[PATH_MAX];
+       uint32_t enabled;       /* enabled/started: 1, disabled/stopped: 0 */
 };
 
 /*
@@ -206,7 +213,7 @@ struct lttng_handle {
  * 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).
  */
 
 /*
@@ -291,7 +298,18 @@ extern int lttng_set_tracing_group(const char *name);
  *
  * 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 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,
+               const char *socket_path);
 
 /*
  * Start tracing for *all* registered trace (kernel and user-space).
@@ -355,4 +373,11 @@ extern int lttng_disable_channel(struct lttng_handle *handle,
 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 */