#define LTTNG_UST_UUID_LEN 16
+/*
+ * Tracepoint provider version. Compatibility based on the major number.
+ * Older tracepoint providers can always register to newer lttng-ust
+ * library, but the opposite is rejected: a newer tracepoint provider is
+ * rejected by an older lttng-ust library.
+ */
+#define LTTNG_UST_PROVIDER_MAJOR 1
+#define LTTNG_UST_PROVIDER_MINOR 0
+
struct lttng_channel;
struct lttng_session;
struct lttng_ust_lib_ring_buffer_ctx;
LTTNG_CLIENT_METADATA = 0,
LTTNG_CLIENT_DISCARD = 1,
LTTNG_CLIENT_OVERWRITE = 2,
+ LTTNG_CLIENT_DISCARD_RT = 3,
+ LTTNG_CLIENT_OVERWRITE_RT = 4,
LTTNG_NR_CLIENT_TYPES,
};
#define __type_integer(_type, _byte_order, _base, _encoding) \
{ \
- .atype = atype_integer, \
- .u.basic.integer = \
+ .atype = atype_integer, \
+ .u = \
{ \
- .size = sizeof(_type) * CHAR_BIT, \
- .alignment = lttng_alignof(_type) * CHAR_BIT, \
- .signedness = lttng_is_signed_type(_type), \
- .reverse_byte_order = _byte_order != BYTE_ORDER, \
- .base = _base, \
- .encoding = lttng_encode_##_encoding, \
+ .basic = \
+ { \
+ .integer = \
+ { \
+ .size = sizeof(_type) * CHAR_BIT, \
+ .alignment = lttng_alignof(_type) * CHAR_BIT, \
+ .signedness = lttng_is_signed_type(_type), \
+ .reverse_byte_order = _byte_order != BYTE_ORDER, \
+ .base = _base, \
+ .encoding = lttng_encode_##_encoding, \
+ } \
+ } \
}, \
} \
#define __type_float(_type) \
{ \
- .atype = atype_float, \
- .u.basic._float = \
+ .atype = atype_float, \
+ .u = \
{ \
- .exp_dig = sizeof(_type) * CHAR_BIT \
- - _float_mant_dig(_type), \
- .mant_dig = _float_mant_dig(_type), \
- .alignment = lttng_alignof(_type) * CHAR_BIT, \
- .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \
+ .basic = \
+ { \
+ ._float = \
+ { \
+ .exp_dig = sizeof(_type) * CHAR_BIT \
+ - _float_mant_dig(_type), \
+ .mant_dig = _float_mant_dig(_type), \
+ .alignment = lttng_alignof(_type) * CHAR_BIT, \
+ .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \
+ } \
+ } \
}, \
} \
char padding[LTTNG_UST_EVENT_FIELD_PADDING];
};
+union lttng_ctx_value {
+ int64_t s64;
+ const char *str;
+ double d;
+};
+
#define LTTNG_UST_CTX_FIELD_PADDING 40
struct lttng_ctx_field {
struct lttng_event_field event_field;
void (*record)(struct lttng_ctx_field *field,
struct lttng_ust_lib_ring_buffer_ctx *ctx,
struct lttng_channel *chan);
+ void (*get_value)(struct lttng_ctx_field *field,
+ union lttng_ctx_value *value);
union {
char padding[LTTNG_UST_CTX_FIELD_PADDING];
} u;
} u;
};
-#define LTTNG_UST_PROBE_DESC_PADDING 20
+#define LTTNG_UST_PROBE_DESC_PADDING 12
struct lttng_probe_desc {
const char *provider;
const struct lttng_event_desc **event_desc;
struct cds_list_head head; /* chain registered probes */
struct cds_list_head lazy_init_head;
int lazy; /* lazy registration */
+ uint32_t major;
+ uint32_t minor;
char padding[LTTNG_UST_PROBE_DESC_PADDING];
};
struct cds_list_head node; /* Event list in session */
struct cds_list_head _deprecated2;
void *_deprecated3;
- unsigned int metadata_dumped:1;
+ unsigned int _deprecated4:1;
/* LTTng-UST 2.1 starts here */
/* list of struct lttng_bytecode_runtime, sorted by seqnum */
/* Backward references: list of lttng_enabler_ref (ref to enablers) */
struct cds_list_head enablers_ref_head;
struct cds_hlist_node hlist; /* session ht of events */
+ int registered; /* has reg'd tracepoint probe */
};
struct channel;
size_t subbuf_size, size_t num_subbuf,
unsigned int switch_timer_interval,
unsigned int read_timer_interval,
- unsigned char *uuid);
+ unsigned char *uuid,
+ uint32_t chan_id);
void (*channel_destroy)(struct lttng_channel *chan);
+ void *_deprecated1;
+ void *_deprecated2;
int (*event_reserve)(struct lttng_ust_lib_ring_buffer_ctx *ctx,
uint32_t event_id);
void (*event_commit)(struct lttng_ust_lib_ring_buffer_ctx *ctx);
/* Event ID management */
struct lttng_session *session;
int objd; /* Object associated to channel */
- unsigned int free_event_id; /* Next event ID to allocate */
- unsigned int used_event_id; /* Max allocated event IDs */
+ unsigned int _deprecated1;
+ unsigned int _deprecated2;
struct cds_list_head node; /* Channel list in session */
const struct lttng_channel_ops *ops;
int header_type; /* 0: unset, 1: compact, 2: large */
struct lttng_ust_shm_handle *handle; /* shared-memory handle */
- unsigned int metadata_dumped:1;
+ unsigned int _deprecated3:1;
/* Channel ID */
unsigned int id;
enum lttng_ust_chan_type type;
unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */
+ int tstate:1; /* Transient enable state */
};
#define LTTNG_UST_EVENT_HT_BITS 12
int active; /* Is trace session active ? */
int been_active; /* Been active ? */
int objd; /* Object associated */
- struct lttng_channel *metadata; /* Metadata channel */
+ void *_deprecated1;
struct cds_list_head chan_head; /* Channel list head */
struct cds_list_head events_head; /* list of events */
- struct cds_list_head _deprecated1;
+ struct cds_list_head _deprecated2;
struct cds_list_head node; /* Session list */
- unsigned int free_chan_id; /* Next chan ID to allocate */
- unsigned int metadata_dumped:1;
+ int _deprecated3;
+ unsigned int _deprecated4:1;
/* New UST 2.1 */
/* List of enablers */
struct cds_list_head enablers_head;
struct lttng_ust_event_ht events_ht; /* ht of events */
+ void *owner; /* object owner */
+ int tstate:1; /* Transient enable state */
};
struct lttng_transport {
int lttng_attach_context(struct lttng_ust_context *context_param,
struct lttng_ctx **ctx, struct lttng_session *session);
+void lttng_context_init(void);
+void lttng_context_exit(void);
+struct lttng_ctx *lttng_static_ctx; /* Used by filtering */
void lttng_transport_register(struct lttng_transport *transport);
void lttng_transport_unregister(struct lttng_transport *transport);
int lttng_probe_register(struct lttng_probe_desc *desc);
void lttng_probe_unregister(struct lttng_probe_desc *desc);
-int lttng_fix_pending_event_desc(const struct lttng_event_desc *desc);
+int lttng_fix_pending_events(void);
int lttng_probes_init(void);
void lttng_probes_exit(void);
int lttng_find_context(struct lttng_ctx *ctx, const char *name);
+int lttng_get_context_index(struct lttng_ctx *ctx, const char *name);
struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx_p);
void lttng_remove_context_field(struct lttng_ctx **ctx_p,
struct lttng_ctx_field *field);
int lttng_add_vpid_to_ctx(struct lttng_ctx **ctx);
int lttng_add_pthread_id_to_ctx(struct lttng_ctx **ctx);
int lttng_add_procname_to_ctx(struct lttng_ctx **ctx);
+int lttng_add_ip_to_ctx(struct lttng_ctx **ctx);
void lttng_context_vtid_reset(void);
void lttng_context_vpid_reset(void);
-extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_metadata;
-extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_discard;
-extern const struct lttng_ust_lib_ring_buffer_client_cb *lttng_client_callbacks_overwrite;
+extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_metadata;
+extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_discard;
+extern const struct lttng_ust_client_lib_ring_buffer_client_cb *lttng_client_callbacks_overwrite;
struct lttng_transport *lttng_transport_find(const char *name);