X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=include%2Flttng%2Fust-events.h;h=e8e4bf2cac12d254bd11ae884847c2f4367bcf64;hb=f574bfb4d81b26d3cfc0243868d138e33470a950;hp=18706fa898139e3161a0620196d1f60f0c0e16aa;hpb=1a37a8730e943967540944344da2f8bd1702d78e;p=lttng-ust.git diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h index 18706fa8..e8e4bf2c 100644 --- a/include/lttng/ust-events.h +++ b/include/lttng/ust-events.h @@ -21,10 +21,6 @@ #include #include -#ifndef LTTNG_PACKED -#error "LTTNG_PACKED should be defined" -#endif - #ifdef __cplusplus extern "C" { #endif @@ -40,7 +36,7 @@ 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; @@ -146,7 +142,7 @@ struct lttng_ust_type_float { * Only float and double are supported. long double is not supported at * the moment. */ -#define _float_mant_dig(_type) \ +#define lttng_ust_float_mant_dig(_type) \ (sizeof(_type) == sizeof(float) ? FLT_MANT_DIG \ : (sizeof(_type) == sizeof(double) ? DBL_MANT_DIG \ : 0)) @@ -158,8 +154,8 @@ struct lttng_ust_type_float { }, \ .struct_size = sizeof(struct lttng_ust_type_float), \ .exp_dig = sizeof(_type) * CHAR_BIT \ - - _float_mant_dig(_type), \ - .mant_dig = _float_mant_dig(_type), \ + - lttng_ust_float_mant_dig(_type), \ + .mant_dig = lttng_ust_float_mant_dig(_type), \ .alignment = lttng_alignof(_type) * CHAR_BIT, \ .reverse_byte_order = BYTE_ORDER != FLOAT_WORD_ORDER, \ })) @@ -300,44 +296,6 @@ struct lttng_ust_probe_desc { /* Data structures used by the tracer. */ -/* - * Bytecode interpreter return value masks. - */ -enum lttng_bytecode_interpreter_ret { - LTTNG_INTERPRETER_DISCARD = 0, - LTTNG_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. @@ -355,6 +313,14 @@ enum lttng_ust_event_type { 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 @@ -379,9 +345,10 @@ struct lttng_ust_event_common { 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. */ }; @@ -409,8 +376,23 @@ struct lttng_ust_event_recorder { 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. */ }; @@ -437,15 +419,15 @@ struct lttng_ust_event_notifier { 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; /* @@ -473,34 +455,57 @@ struct lttng_ust_channel_ops { /* 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 */ + + /* 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_ops *ops; - int header_type; /* 0: unset, 1: compact, 2: large */ - struct lttng_ust_shm_handle *handle; /* shared-memory handle */ + struct lttng_ust_lib_ring_buffer_channel *chan; /* Channel buffers */ + 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. */ }; /* @@ -516,8 +521,6 @@ struct lttng_ust_stack_ctx { 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. */ };