#include <errno.h>
#include <urcu/ref.h>
#include <pthread.h>
+#include <limits.h>
#ifdef __cplusplus
extern "C" {
#define LTTNG_UST_PROVIDER_MAJOR 2
#define LTTNG_UST_PROVIDER_MINOR 0
-struct lttng_channel;
+struct lttng_ust_channel_buffer;
struct lttng_ust_session;
struct lttng_ust_lib_ring_buffer_ctx;
struct lttng_ust_event_field;
}, \
.struct_size = sizeof(struct lttng_ust_type_integer), \
.size = sizeof(_type) * CHAR_BIT, \
- .alignment = lttng_alignof(_type) * CHAR_BIT, \
- .signedness = lttng_is_signed_type(_type), \
+ .alignment = lttng_ust_rb_alignof(_type) * CHAR_BIT, \
+ .signedness = lttng_ust_is_signed_type(_type), \
.reverse_byte_order = _byte_order != BYTE_ORDER, \
.base = _base, \
}))
.exp_dig = sizeof(_type) * CHAR_BIT \
- lttng_ust_float_mant_dig(_type), \
.mant_dig = lttng_ust_float_mant_dig(_type), \
- .alignment = lttng_alignof(_type) * CHAR_BIT, \
+ .alignment = lttng_ust_rb_alignof(_type) * CHAR_BIT, \
.reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \
}))
struct lttng_ust_event_desc {
uint32_t struct_size; /* Size of this structure. */
- const char *name;
+ const char *event_name;
+ struct lttng_ust_probe_desc *probe_desc;
void (*probe_callback)(void);
struct lttng_event_ctx *ctx; /* context */
struct lttng_ust_event_field **fields; /* event payload */
struct lttng_ust_probe_desc {
uint32_t struct_size; /* Size of this structure. */
- const char *provider;
+ const char *provider_name;
struct lttng_ust_event_desc **event_desc;
unsigned int nr_events;
struct cds_list_head head; /* chain registered probes */
/* Data structures used by the tracer. */
-/*
- * Bytecode interpreter return value masks.
- */
-enum lttng_ust_bytecode_interpreter_ret {
- LTTNG_UST_BYTECODE_INTERPRETER_DISCARD = 0,
- LTTNG_UST_BYTECODE_INTERPRETER_RECORD_FLAG = (1ULL << 0),
- /* Other bits are kept for future use. */
-};
-
-struct lttng_interpreter_output;
-struct lttng_ust_bytecode_runtime_private;
-
-/*
- * IMPORTANT: this structure is part of the ABI between the probe and
- * UST. Fields need to be only added at the end, never reordered, never
- * removed.
- *
- * The field @struct_size should be used to determine the size of the
- * structure. It should be queried before using additional fields added
- * at the end of the structure.
- */
-struct lttng_ust_bytecode_runtime {
- uint32_t struct_size; /* Size of this structure. */
-
- struct lttng_ust_bytecode_runtime_private *priv;
- /* Associated bytecode */
- union {
- uint64_t (*filter)(void *interpreter_data,
- const char *interpreter_stack_data);
- uint64_t (*capture)(void *interpreter_data,
- const char *interpreter_stack_data,
- struct lttng_interpreter_output *interpreter_output);
- } interpreter_funcs;
- struct cds_list_head node; /* list of bytecode runtime in event */
-
- /* End of base ABI. Fields below should be used after checking struct_size. */
-};
-
/*
* lttng_event structure is referred to by the tracing fast path. It
* must be kept small.
LTTNG_UST_EVENT_TYPE_NOTIFIER = 1,
};
+/*
+ * Result of the run_filter() callback.
+ */
+enum lttng_ust_event_filter_result {
+ LTTNG_UST_EVENT_FILTER_ACCEPT = 0,
+ LTTNG_UST_EVENT_FILTER_REJECT = 1,
+};
+
/*
* IMPORTANT: this structure is part of the ABI between the probe and
* UST. Fields need to be only added at the end, never reordered, never
void *child; /* Pointer to child, for inheritance by aggregation. */
int enabled;
- int has_enablers_without_bytecode;
- /* list of struct lttng_ust_bytecode_runtime, sorted by seqnum */
- struct cds_list_head filter_bytecode_runtime_head;
+ int eval_filter; /* Need to evaluate filters */
+ int (*run_filter)(struct lttng_ust_event_common *event,
+ const char *stack_data,
+ void *filter_ctx);
/* End of base ABI. Fields below should be used after checking struct_size. */
};
struct lttng_ust_event_common *parent; /* Inheritance by aggregation. */
struct lttng_ust_event_recorder_private *priv; /* Private event record interface */
- unsigned int id;
- struct lttng_channel *chan;
- struct lttng_ust_ctx *ctx;
+ struct lttng_ust_channel_buffer *chan;
+
+ /* End of base ABI. Fields below should be used after checking struct_size. */
+};
+
+/*
+ * IMPORTANT: this structure is part of the ABI between the probe and
+ * UST. Fields need to be only added at the end, never reordered, never
+ * removed.
+ *
+ * The field @struct_size should be used to determine the size of the
+ * structure. It should be queried before using additional fields added
+ * at the end of the structure.
+ */
+struct lttng_ust_notification_ctx {
+ uint32_t struct_size; /* Size of this structure. */
+ int eval_capture; /* Capture evaluation available. */
/* End of base ABI. Fields below should be used after checking struct_size. */
};
struct lttng_ust_event_common *parent; /* Inheritance by aggregation. */
struct lttng_ust_event_notifier_private *priv; /* Private event notifier interface */
+ int eval_capture; /* Need to evaluate capture */
void (*notification_send)(struct lttng_ust_event_notifier *event_notifier,
- const char *stack_data);
- struct cds_list_head capture_bytecode_runtime_head;
+ const char *stack_data,
+ struct lttng_ust_notification_ctx *notif_ctx);
/* End of base ABI. Fields below should be used after checking struct_size. */
};
struct lttng_ust_lib_ring_buffer_channel;
-struct lttng_ust_shm_handle;
-struct lttng_ust_channel_ops_private;
+struct lttng_ust_channel_buffer_ops_private;
/*
* IMPORTANT: this structure is part of the ABI between the probe and
* structure. It should be queried before using additional fields added
* at the end of the structure.
*/
-struct lttng_ust_channel_ops {
+struct lttng_ust_channel_buffer_ops {
uint32_t struct_size;
- struct lttng_ust_channel_ops_private *priv; /* Private channel ops interface */
+ struct lttng_ust_channel_buffer_ops_private *priv; /* Private channel buffer ops interface */
- int (*event_reserve)(struct lttng_ust_lib_ring_buffer_ctx *ctx,
- uint32_t event_id);
+ int (*event_reserve)(struct lttng_ust_lib_ring_buffer_ctx *ctx);
void (*event_commit)(struct lttng_ust_lib_ring_buffer_ctx *ctx);
void (*event_write)(struct lttng_ust_lib_ring_buffer_ctx *ctx,
- const void *src, size_t len);
+ const void *src, size_t len, size_t alignment);
void (*event_strcpy)(struct lttng_ust_lib_ring_buffer_ctx *ctx,
const char *src, size_t len);
+ void (*event_pstrcpy_pad)(struct lttng_ust_lib_ring_buffer_ctx *ctx,
+ const char *src, size_t len);
/* End of base ABI. Fields below should be used after checking struct_size. */
};
+enum lttng_ust_channel_type {
+ LTTNG_UST_CHANNEL_TYPE_BUFFER = 0,
+};
+
+struct lttng_ust_channel_common_private;
+
/*
* IMPORTANT: this structure is part of the ABI between the probe and
* UST. Fields need to be only added at the end, never reordered, never
* removed.
+ *
+ * The field @struct_size should be used to determine the size of the
+ * structure. It should be queried before using additional fields added
+ * at the end of the structure.
*/
-struct lttng_channel {
- /*
- * The pointers located in this private data are NOT safe to be
- * dereferenced by the consumer. The only operations the
- * consumer process is designed to be allowed to do is to read
- * and perform subbuffer flush.
- */
- struct lttng_ust_lib_ring_buffer_channel *chan; /* Channel buffers */
+struct lttng_ust_channel_common {
+ uint32_t struct_size; /* Size of this structure. */
+
+ struct lttng_ust_channel_common_private *priv; /* Private channel interface */
+
+ enum lttng_ust_channel_type type;
+ void *child; /* Pointer to child, for inheritance by aggregation. */
+
int enabled;
- struct lttng_ust_ctx *ctx;
- /* Event ID management */
struct lttng_ust_session *session;
- int objd; /* Object associated to channel */
- struct cds_list_head node; /* Channel list in session */
- struct lttng_ust_channel_ops *ops;
- int header_type; /* 0: unset, 1: compact, 2: large */
- struct lttng_ust_shm_handle *handle; /* shared-memory handle */
-
- /* Channel ID */
- unsigned int id;
- enum lttng_ust_abi_chan_type type;
- unsigned char uuid[LTTNG_UST_UUID_LEN]; /* Trace session unique ID */
- int tstate:1; /* Transient enable state */
+
+ /* End of base ABI. Fields below should be used after checking struct_size. */
+};
+
+struct lttng_ust_channel_buffer_private;
+
+/*
+ * IMPORTANT: this structure is part of the ABI between the probe and
+ * UST. Fields need to be only added at the end, never reordered, never
+ * removed.
+ *
+ * The field @struct_size should be used to determine the size of the
+ * structure. It should be queried before using additional fields added
+ * at the end of the structure.
+ */
+struct lttng_ust_channel_buffer {
+ uint32_t struct_size; /* Size of this structure. */
+
+ struct lttng_ust_channel_common *parent; /* Inheritance by aggregation. */
+ struct lttng_ust_channel_buffer_private *priv; /* Private channel buffer interface */
+
+ struct lttng_ust_channel_buffer_ops *ops;
+
+ /* End of base ABI. Fields below should be used after checking struct_size. */
};
/*
uint32_t struct_size; /* Size of this structure */
struct lttng_ust_event_recorder *event_recorder;
- struct lttng_ust_ctx *chan_ctx; /* RCU dereferenced. */
- struct lttng_ust_ctx *event_ctx; /* RCU dereferenced. */
/* End of base ABI. Fields below should be used after checking struct_size. */
};