X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;ds=sidebyside;f=include%2Flttng%2Flttng.h;h=9e3924e67656bf174dc373beb689078d715bc510;hb=27babd3a0a164f71d4dc02884ef20099ddfc6755;hp=5a826aad78bd3262063de1f14011c5d06f01a5c4;hpb=a9e87764ffd56e6ab80432395223c1a5d7f7a8ac;p=lttng-tools.git

diff --git a/include/lttng/lttng.h b/include/lttng/lttng.h
index 5a826aad7..9e3924e67 100644
--- a/include/lttng/lttng.h
+++ b/include/lttng/lttng.h
@@ -33,10 +33,6 @@
 extern "C" {
 #endif
 
-#ifndef LTTNG_PACKED
-#define LTTNG_PACKED __attribute__((__packed__))
-#endif
-
 /*
  * Event symbol length. Copied from LTTng kernel ABI.
  */
@@ -130,6 +126,7 @@ enum lttng_event_context_type {
 	LTTNG_EVENT_CONTEXT_VPPID             = 9,
 	LTTNG_EVENT_CONTEXT_PTHREAD_ID        = 10,
 	LTTNG_EVENT_CONTEXT_HOSTNAME          = 11,
+	LTTNG_EVENT_CONTEXT_IP                = 12,
 };
 
 enum lttng_calibrate_type {
@@ -143,16 +140,27 @@ enum lttng_health_component {
 	LTTNG_HEALTH_APP_REG,
 	LTTNG_HEALTH_KERNEL,
 	LTTNG_HEALTH_CONSUMER,
+	LTTNG_HEALTH_HT_CLEANUP,
+	LTTNG_HEALTH_APP_MANAGE_NOTIFY,
+	LTTNG_HEALTH_APP_REG_DISPATCH,
 	LTTNG_HEALTH_ALL,
 };
 
+/* Buffer type for a specific domain. */
+enum lttng_buffer_type {
+	LTTNG_BUFFER_PER_PID,	/* Only supported by UST being the default. */
+	LTTNG_BUFFER_PER_UID,	/* Only supported by UST. */
+	LTTNG_BUFFER_GLOBAL,	/* Only supported by the Kernel. */
+};
+
 /*
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_DOMAIN_PADDING1              16
+#define LTTNG_DOMAIN_PADDING1              12
 #define LTTNG_DOMAIN_PADDING2              LTTNG_SYMBOL_NAME_LEN + 32
 struct lttng_domain {
 	enum lttng_domain_type type;
+	enum lttng_buffer_type buf_type;
 	char padding[LTTNG_DOMAIN_PADDING1];
 
 	union {
@@ -160,7 +168,7 @@ struct lttng_domain {
 		char exec_name[NAME_MAX];
 		char padding[LTTNG_DOMAIN_PADDING2];
 	} attr;
-} LTTNG_PACKED;
+};
 
 /*
  * Perf counter attributes
@@ -174,7 +182,7 @@ struct lttng_event_perf_counter_ctx {
 	char name[LTTNG_SYMBOL_NAME_LEN];
 
 	char padding[LTTNG_PERF_EVENT_PADDING1];
-} LTTNG_PACKED;
+};
 
 /*
  * Event/channel context
@@ -191,7 +199,7 @@ struct lttng_event_context {
 		struct lttng_event_perf_counter_ctx perf_counter;
 		char padding[LTTNG_EVENT_CONTEXT_PADDING2];
 	} u;
-} LTTNG_PACKED;
+};
 
 /*
  * Event probe.
@@ -208,7 +216,7 @@ struct lttng_event_probe_attr {
 	char symbol_name[LTTNG_SYMBOL_NAME_LEN];
 
 	char padding[LTTNG_EVENT_PROBE_PADDING1];
-} LTTNG_PACKED;
+};
 
 /*
  * Function tracer
@@ -220,7 +228,7 @@ struct lttng_event_function_attr {
 	char symbol_name[LTTNG_SYMBOL_NAME_LEN];
 
 	char padding[LTTNG_EVENT_FUNCTION_PADDING1];
-} LTTNG_PACKED;
+};
 
 /*
  * Generic lttng event
@@ -249,7 +257,7 @@ struct lttng_event {
 
 		char padding[LTTNG_EVENT_PADDING2];
 	} attr;
-} LTTNG_PACKED;
+};
 
 enum lttng_event_field_type {
 	LTTNG_EVENT_FIELD_OTHER			= 0,
@@ -266,14 +274,14 @@ struct lttng_event_field {
 	char padding[LTTNG_EVENT_FIELD_PADDING];
 	struct lttng_event event;
 	int nowrite;
-} LTTNG_PACKED;
+};
 
 /*
  * Tracer channel attributes. For both kernel and user-space.
  *
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_CHANNEL_ATTR_PADDING1        LTTNG_SYMBOL_NAME_LEN + 32
+#define LTTNG_CHANNEL_ATTR_PADDING1        LTTNG_SYMBOL_NAME_LEN + 16
 struct lttng_channel_attr {
 	int overwrite;                      /* 1: overwrite, 0: discard */
 	uint64_t subbuf_size;               /* bytes */
@@ -281,9 +289,12 @@ struct lttng_channel_attr {
 	unsigned int switch_timer_interval; /* usec */
 	unsigned int read_timer_interval;   /* usec */
 	enum lttng_event_output output;     /* splice, mmap */
+	/* LTTng 2.1 padding limit */
+	uint64_t tracefile_size;            /* bytes */
+	uint64_t tracefile_count;           /* number of tracefiles */
 
 	char padding[LTTNG_CHANNEL_ATTR_PADDING1];
-} LTTNG_PACKED;
+};
 
 /*
  * Channel information structure. For both kernel and user-space.
@@ -297,14 +308,14 @@ struct lttng_channel {
 	struct lttng_channel_attr attr;
 
 	char padding[LTTNG_CHANNEL_PADDING1];
-} LTTNG_PACKED;
+};
 
 #define LTTNG_CALIBRATE_PADDING1           16
 struct lttng_calibrate {
 	enum lttng_calibrate_type type;
 
 	char padding[LTTNG_CALIBRATE_PADDING1];
-} LTTNG_PACKED;
+};
 
 /*
  * Basic session information.
@@ -323,7 +334,7 @@ struct lttng_session {
 	uint32_t enabled;	/* enabled/started: 1, disabled/stopped: 0 */
 
 	char padding[LTTNG_SESSION_PADDING1];
-} LTTNG_PACKED;
+};
 
 /*
  * Handle used as a context for commands.
@@ -336,7 +347,7 @@ struct lttng_handle {
 	struct lttng_domain domain;
 
 	char padding[LTTNG_HANDLE_PADDING1];
-} LTTNG_PACKED;
+};
 
 /*
  * Public LTTng control API
@@ -379,6 +390,21 @@ extern void lttng_destroy_handle(struct lttng_handle *handle);
  */
 extern int lttng_create_session(const char *name, const char *url);
 
+/*
+ * Create a tracing session that will exclusively be used for snapshot meaning
+ * the session will be in no output mode and every channel enabled for that
+ * session will be set in overwrite mode and in mmap output since splice is not
+ * supported.
+ *
+ * If an url is given, it will be used to create a default snapshot output
+ * using it as a destination. If NULL, no output will be defined and an
+ * add-output call will be needed.
+ *
+ * Name can't be NULL.
+ */
+extern int lttng_create_session_snapshot(const char *name,
+		const char *snapshot_url);
+
 /*
  * Destroy a tracing session.
  *
@@ -594,12 +620,14 @@ extern int lttng_set_consumer_url(struct lttng_handle *handle,
 /*
  * Enable the consumer for a session and domain.
  */
-extern int lttng_enable_consumer(struct lttng_handle *handle);
+extern LTTNG_DEPRECATED("This call is now obsolete.")
+int lttng_enable_consumer(struct lttng_handle *handle);
 
 /*
  * Disable consumer for a session and domain.
  */
-extern int lttng_disable_consumer(struct lttng_handle *handle);
+extern LTTNG_DEPRECATED("This call is now obsolete.")
+int lttng_disable_consumer(struct lttng_handle *handle);
 
 /*
  * Check session daemon health for a specific component.