* Copyright 2010 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
* Holds LTTng per-session event registry.
+ *
+ * Dual LGPL v2.1/GPL v2 license.
*/
#include <linux/list.h>
union {
struct {
struct perf_event **e; /* per-cpu array */
- struct list_head head;
+ struct notifier_block nb;
+ int hp_enable;
struct perf_event_attr *attr;
} perf_counter;
} u;
struct ltt_event {
unsigned int id;
struct ltt_channel *chan;
+ int enabled;
const struct lttng_event_desc *desc;
void *filter;
struct lttng_ctx *ctx;
* may change due to concurrent writes.
*/
size_t (*packet_avail_size)(struct channel *chan);
- wait_queue_head_t *(*get_reader_wait_queue)(struct ltt_channel *chan);
+ wait_queue_head_t *(*get_reader_wait_queue)(struct channel *chan);
+ wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan);
+ int (*is_finalized)(struct channel *chan);
+ int (*is_disabled)(struct channel *chan);
};
struct ltt_channel {
unsigned int id;
struct channel *chan; /* Channel buffers */
+ int enabled;
struct lttng_ctx *ctx;
/* Event ID management */
struct ltt_session *session;
struct file *file; /* File associated to channel */
unsigned int free_event_id; /* Next event ID to allocate */
struct list_head list; /* Channel list */
- wait_queue_head_t notify_wait; /* Channel addition notif. waitqueue */
struct ltt_channel_ops *ops;
int header_type; /* 0: unset, 1: compact, 2: large */
int metadata_dumped:1;
};
struct ltt_session *ltt_session_create(void);
-int ltt_session_start(struct ltt_session *session);
-int ltt_session_stop(struct ltt_session *session);
+int ltt_session_enable(struct ltt_session *session);
+int ltt_session_disable(struct ltt_session *session);
void ltt_session_destroy(struct ltt_session *session);
struct ltt_channel *ltt_channel_create(struct ltt_session *session,
struct lttng_kernel_event *event_param,
void *filter);
+int ltt_channel_enable(struct ltt_channel *channel);
+int ltt_channel_disable(struct ltt_channel *channel);
+int ltt_event_enable(struct ltt_event *event);
+int ltt_event_disable(struct ltt_event *event);
+
void ltt_transport_register(struct ltt_transport *transport);
void ltt_transport_unregister(struct ltt_transport *transport);
+void synchronize_trace(void);
int ltt_debugfs_abi_init(void);
void ltt_debugfs_abi_exit(void);
int ltt_probes_init(void);
void ltt_probes_exit(void);
struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
+void lttng_remove_context_field(struct lttng_ctx **ctx,
+ struct lttng_ctx_field *field);
void lttng_destroy_context(struct lttng_ctx *ctx);
int lttng_add_pid_to_ctx(struct lttng_ctx **ctx);
int lttng_add_comm_to_ctx(struct lttng_ctx **ctx);
int lttng_add_prio_to_ctx(struct lttng_ctx **ctx);
int lttng_add_nice_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_tid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_perf_counter_to_ctx(uint32_t type,
+ uint64_t config,
+ const char *name,
+ struct lttng_ctx **ctx);
#ifdef CONFIG_KPROBES
int lttng_kprobes_register(const char *name,