X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Flttng%2Ftrigger%2Ftrigger-internal.h;h=cfe0bee53930bc2fc98668e71edd037c6f05c39f;hb=5024c2ac433f5c5feec034cb7d8d485d25cf14e7;hp=cff4504a7d71e3b656bce857d6307125a338ff94;hpb=e2d1190b9ea09c54e5d7373643d62e2034bc1531;p=deliverable%2Flttng-tools.git diff --git a/include/lttng/trigger/trigger-internal.h b/include/lttng/trigger/trigger-internal.h index cff4504a7..cfe0bee53 100644 --- a/include/lttng/trigger/trigger-internal.h +++ b/include/lttng/trigger/trigger-internal.h @@ -12,39 +12,164 @@ #include #include #include +#include +#include #include #include #include +#include struct lttng_trigger { + struct urcu_ref ref; /* internal use only */ + bool owns_internal_objects; /* internal use only */ + struct lttng_condition *condition; struct lttng_action *action; + char *name; + struct { /* Internal use only */ + bool set; + uint64_t value; + } key; + struct { /* internal use only */ + struct lttng_credentials credentials; + bool set; + } creds; + struct { + enum lttng_trigger_firing_policy_type type; + uint64_t threshold; + uint64_t current_count; + } firing_policy; + + /* This ordered set is used to hold the capture bytecodoes and their + * expression. lttng_action_capture_bytecode_element. + * We could only have bytecodes here... the expression are a left over + * from the generation process of the set. They are used for comparison + * during the gathering process. They are refcounted (TODO) and are the same + * object that are present un the underlying action object/s + */ + struct lttng_dynamic_pointer_array capture_bytecode_set; +}; + +struct lttng_triggers { + struct lttng_dynamic_pointer_array array; }; struct lttng_trigger_comm { /* length excludes its own length. */ + uint32_t name_length /* Includes '\0' */; uint32_t length; - /* A condition and action object follow. */ + uint8_t policy_type; + uint64_t policy_threshold; + /* A name, condition and action object follow. */ char payload[]; } LTTNG_PACKED; +struct lttng_triggers_comm { + uint32_t count; + uint32_t length; + /* Count * lttng_trigger_comm structure */ + char payload[]; +}; + LTTNG_HIDDEN ssize_t lttng_trigger_create_from_buffer(const struct lttng_buffer_view *view, struct lttng_trigger **trigger); LTTNG_HIDDEN -int lttng_trigger_serialize(struct lttng_trigger *trigger, - struct lttng_dynamic_buffer *buf); +int lttng_trigger_serialize(const struct lttng_trigger *trigger, + struct lttng_dynamic_buffer *buf, + int *fd_to_send); + +LTTNG_HIDDEN +bool lttng_trigger_validate(const struct lttng_trigger *trigger); + +LTTNG_HIDDEN +int lttng_trigger_assign(struct lttng_trigger *dst, + const struct lttng_trigger *src); + +LTTNG_HIDDEN +void lttng_trigger_set_key(struct lttng_trigger *trigger, uint64_t key); + +LTTNG_HIDDEN +uint64_t lttng_trigger_get_key(const struct lttng_trigger *trigger); + +LTTNG_HIDDEN +int lttng_trigger_generate_name(struct lttng_trigger *trigger, uint64_t offset); + +LTTNG_HIDDEN +bool lttng_trigger_is_equal(const struct lttng_trigger *a, + const struct lttng_trigger *b); + +LTTNG_HIDDEN +void lttng_trigger_get(struct lttng_trigger *trigger); + +LTTNG_HIDDEN +void lttng_trigger_put(struct lttng_trigger *trigger); + +/* + * Allocate a new list of lttng_trigger. + * The returned object must be freed via lttng_triggers_destroy. + */ +LTTNG_HIDDEN +struct lttng_triggers *lttng_triggers_create(void); + +/* + * Return the non-const pointer of an element at index "index" of a + * lttng_triggers. + * + * The ownership of the lttng_triggers element is NOT transfered. + * The returned object can NOT be freed via lttng_trigger_destroy. + */ +LTTNG_HIDDEN +struct lttng_trigger *lttng_triggers_get_pointer_of_index( + const struct lttng_triggers *triggers, unsigned int index); + +/* + * TODO: + */ +LTTNG_HIDDEN +int lttng_triggers_add( + struct lttng_triggers *triggers, struct lttng_trigger *trigger); + +/* + * Serialize a trigger collection to a lttng_dynamic_buffer. + * Return LTTNG_OK on success, negative lttng error code on error. + */ +LTTNG_HIDDEN +int lttng_triggers_serialize(const struct lttng_triggers *triggers, + struct lttng_dynamic_buffer *buffer); + +LTTNG_HIDDEN +ssize_t lttng_triggers_create_from_buffer(const struct lttng_buffer_view *view, + struct lttng_triggers **triggers); + +LTTNG_HIDDEN +const struct lttng_credentials *lttng_trigger_get_credentials( + const struct lttng_trigger *trigger); LTTNG_HIDDEN -const struct lttng_condition *lttng_trigger_get_const_condition( +void lttng_trigger_set_credentials( + struct lttng_trigger *trigger, uid_t uid, gid_t git); + +LTTNG_HIDDEN +bool lttng_trigger_is_ready_to_fire( + struct lttng_trigger *trigger); + +/* + * Return the type of any uderlying domain requirement. If no particular + * requirement is needed return LTTNG_DOMAIN_NONE. + */ +LTTNG_HIDDEN +enum lttng_domain_type lttng_trigger_get_underlying_domain_type_restriction( const struct lttng_trigger *trigger); LTTNG_HIDDEN -const struct lttng_action *lttng_trigger_get_const_action( +unsigned int lttng_trigger_get_capture_bytecode_count( const struct lttng_trigger *trigger); LTTNG_HIDDEN -bool lttng_trigger_validate(struct lttng_trigger *trigger); +const struct lttng_bytecode * +lttng_trigger_get_capture_bytecode_at_index( + const struct lttng_trigger *trigger, unsigned int index); #endif /* LTTNG_TRIGGER_INTERNAL_H */