From: yangxx Date: Wed, 16 Jul 2003 19:15:58 +0000 (+0000) Subject: new version of the reading API X-Git-Tag: v0.12.20~3387 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=e3247aa51e67eb8cce283d23b51cdc5b644791bd;p=lttv.git new version of the reading API git-svn-id: http://ltt.polymtl.ca/svn@102 04897980-b3bd-0310-b5e0-8ef037075253 --- diff --git a/ltt/branches/poly/include/ltt/ltt-private.h b/ltt/branches/poly/include/ltt/ltt-private.h index 31fba84b..1e988632 100644 --- a/ltt/branches/poly/include/ltt/ltt-private.h +++ b/ltt/branches/poly/include/ltt/ltt-private.h @@ -5,72 +5,68 @@ #include #include #include +#include + +/* enumeration definition */ + +typedef enum _BuildinEvent{ + TRACE_FACILITY_LOAD = 0, + TRACE_BLOCK_START = 17, + TRACE_BLOCK_END = 18, + TRACE_TIME_HEARTBEAT= 22 +} BuildinEvent; /* structure definition */ -typedef struct _trace_header_event { - //information of the machine type - uint32_t arch_type; /* Type of architecture */ - uint32_t arch_variant; /* Variant of the given type of architecture */ - uint32_t system_type; /* Operating system type */ - char system_name[32]; /* system name */ - // uint32_t magic_number; /* Magic number to identify a trace */ - ltt_arch_size arch_size; /* data type size */ - ltt_arch_endian arch_endian; /* endian type : little or big */ - - //format of fields - uint8_t time_size; /* time size */ - uint8_t time_granul; /* time granularity */ - uint8_t id_size; /* size of combined facility/event ids */ - - //other elements - uint32_t ip_addr; /* IP of the machine */ - uint8_t cpu_number; /* number of CPU */ - uint8_t cpu_id; /* cpu id */ - uint8_t cpu_number_used; /* the number of the cpu used in the tracefile */ - uint32_t buffer_size; /* Size of blocks */ -} LTT_PACKED_STRUCT trace_header_event; - - -typedef struct _block_header { - ltt_time time; /* Time stamp of this block */ - ltt_cycle_count cycle_count; /* cycle count of the event */ - uint32_t event_count; /* event count */ -} LTT_PACKED_STRUCT block_header; - - -typedef struct _block_footer { - uint32_t unused_bytes; /* unused bytes at the end of the block */ - ltt_time time; /* Time stamp of this block */ - ltt_cycle_count cycle_count; /* cycle count of the event */ -} LTT_PACKED_STRUCT block_footer; - - -struct _ltt_type{ - char * element_name; //elements name of the struct or type name +typedef struct _FacilityLoad{ + char * name; + LttChecksum checksum; + uint32_t base_code; +} LTT_PACKED_STRUCT FacilityLoad; + +typedef struct _BlockStart { + LttTime time; //Time stamp of this block + LttCycleCount cycle_count; //cycle count of the event + uint32_t block_id; //block id +} LTT_PACKED_STRUCT BlockStart; + +typedef struct _BlockEnd { + LttTime time; //Time stamp of this block + LttCycleCount cycle_count; //cycle count of the event + uint32_t block_id; //block id +} LTT_PACKED_STRUCT BlockEnd; + +typedef struct _TimeHeartbeat { + LttTime time; //Time stamp of this block + LttCycleCount cycle_count; //cycle count of the event +} LTT_PACKED_STRUCT TimeHeartbeat; + + +struct _LttType{ + char * element_name; //elements name of the struct or type name char * fmt; int size; - ltt_type_enum type_class; //which type - char ** enum_strings; //for enum labels - struct _ltt_type ** element_type; //for array, sequence and struct - unsigned element_number; //the number of elements - //for enum, array, sequence and structure + LttTypeEnum type_class; //which type + char ** enum_strings; //for enum labels + struct _LttType ** element_type; //for array, sequence and struct + unsigned element_number; //the number of elements + //for enum, array, sequence and structure }; -struct _ltt_eventtype{ +struct _LttEventType{ char * name; char * description; - int index; //id of the event type within the facility - ltt_facility * facility; //the facility that contains the event type - ltt_field * root_field; //root field - int latest_block; //the latest block using the event type - int latest_event; //the latest event using the event type + int index; //id of the event type within the facility + LttFacility * facility; //the facility that contains the event type + LttField * root_field; //root field + int latest_block; //the latest block using the event type + int latest_event; //the latest event using the event type }; -struct _ltt_field{ +struct _LttField{ unsigned field_pos; //field position within its parent - ltt_type * field_type; //field type, if it is root field + LttType * field_type; //field type, if it is root field //then it must be struct type off_t offset_root; //offset from the root, -1:uninitialized @@ -89,97 +85,97 @@ struct _ltt_field{ //1: field has no string or sequenc //-1: uninitialize - struct _ltt_field * parent; - struct _ltt_field ** child;//for array, sequence and struct: + struct _LttField * parent; + struct _LttField ** child; //for array, sequence and struct: //list of fields, it may have only one //field if the element is not a struct unsigned current_element; //which element is currently processed }; -struct _ltt_event{ - int event_id; - ltt_cycle_count cycle_count; - ltt_tracefile * tracefile; - void * data; //event data +struct _LttEvent{ + uint16_t event_id; + uint32_t time_delta; + LttTime event_time; + LttCycleCount event_cycle_count; + LttTracefile * tracefile; + void * data; //event data }; -struct _ltt_facility{ +struct _LttFacility{ char * name; //facility name int event_number; //number of events in the facility - ltt_checksum checksum; //checksum of the facility - ltt_eventtype ** events; //array of event types - unsigned usage_count; //usage count + LttChecksum checksum; //checksum of the facility + uint32_t base_id; //base id of the facility + LttEventType ** events; //array of event types + //FIXME Specify those types - //table all_named_types; //an array of named ltt_type - //sequence all_unnamed_types;//an array of unnamed ltt_type - //sequence all_fields; //an array of fields + table all_named_types; //an array of named LttType + sequence all_unnamed_types;//an array of unnamed LttType + sequence all_fields; //an array of fields }; -struct _ltt_tracefile{ - int fd; /* file descriptor */ - off_t file_size; /* file size */ - int block_number; /* number of blocks in the file */ - int which_block; /* which block the current block is */ - int which_event; /* which event of the current block - is currently processed */ - ltt_time current_event_time; /* time of the current event */ - trace_header_event * trace_header; /* the first event in the first block */ - block_header * a_block_header; /* block header of the block*/ - block_footer * a_block_footer; /* block footer of the block*/ - void * first_event_pos; /* the position of the first event */ - void * cur_event_pos; /* the position of the current event */ - void * buffer; /* the buffer containing the block */ - double cycle_per_nsec; /* Cycles per nsec */ - unsigned int cur_heart_beat_number;/* the number of heart beat so far - in the block */ - - ltt_time start_time; /* trace start time */ - ltt_time end_time; /* trace end time */ - ltt_time prev_block_end_time; /* the end time of previous block */ - ltt_time prev_event_time; /* the time of the previous event */ - - int eventtype_number; /* the number of event type - in the tracefile */ - int facility_number; /* the number of the facility in - the tracefile */ - GHashTable * index_facility; /* facility index and facility pair */ - GHashTable * facility_name; /* name and facility pair */ - GHashTable * base_id_name; /* facility name and base id pair*/ - - GPtrArray * eventtype_event_id; /* an array of eventtypes accessed - by event id */ - - ltt_arch_size my_arch_size; /* data type size of the local machine */ - ltt_arch_endian my_arch_endian; /* endian type of the local machine */ +struct _LttTracefile{ + char * name; //tracefile name + LttTrace * trace; //trace containing the tracefile + int fd; //file descriptor + off_t file_size; //file size + unsigned block_size; //block_size + int block_number; //number of blocks in the file + int which_block; //which block the current block is + int which_event; //which event of the current block + //is currently processed + LttTime current_event_time; //time of the current event + BlockStart * a_block_start; //block start of the block + BlockEnd * a_block_end; //block end of the block + void * cur_event_pos; //the position of the current event + void * buffer; //the buffer containing the block + double cycle_per_nsec; //Cycles per nsec + unsigned cur_heart_beat_number; //current number of heart beat in the buf + + LttTime prev_block_end_time; //the end time of previous block + LttTime prev_event_time; //the time of the previous event }; - - +struct _LttTrace{ + char * pathname; //the pathname of the trace + guint facility_number; //the number of facilities + guint control_tracefile_number; //the number of control files + guint per_cpu_tracefile_number; //the number of per cpu files + LttSystemDescription * system_description;//system description + GPtrArray *control_tracefiles; //array of control tracefiles + GPtrArray *per_cpu_tracefiles; //array of per cpu tracefiles + GPtrArray *facilities; //array of facilities + LttArchSize my_arch_size; //data size of the local machine + LttArchEndian my_arch_endian; //endian type of the local machine +}; /***************************************************************************** macro for size of some data types *****************************************************************************/ -#define EVENT_ID_SIZE sizeof(int8_t) -#define CYCLE_COUNT_SIZE sizeof(ltt_cycle_count) -//event id and time delta(cycle count) -//yxx disable during the test -//#define EVENT_HEADER_SIZE (EVENT_ID_SIZE + CYCLE_COUNT_SIZE) -#define EVENT_HEADER_SIZE (EVENT_ID_SIZE + sizeof(uint32_t)) +#define EVENT_ID_SIZE sizeof(uint16_t) +#define TIME_DELTA_SIZE sizeof(uint32_t) +#define EVENT_HEADER_SIZE (EVENT_ID_SIZE + TIME_DELTA_SIZE) /* obtain the time of an event */ -ltt_time getEventTime(ltt_tracefile * tf); +LttTime getEventTime(LttTracefile * tf); /* get the data type size and endian type of the local machine */ -void getDataEndianType(ltt_arch_size * size, ltt_arch_endian * endian); +void getDataEndianType(LttArchSize * size, LttArchEndian * endian); + +/* open facility */ +void ltt_facility_open(LttTrace * t, char * facility_name); +/* get facility by event id */ +LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id); -typedef struct _ptr_wrap{ - gpointer ptr; -} ptr_wrap; +/* open tracefile */ +LttTracefile * ltt_tracefile_open(LttTrace *t, char * tracefile_name); +void ltt_tracefile_open_cpu(LttTrace *t, char * tracefile_name); +void ltt_tracefile_open_control(LttTrace *t, char * control_name); #endif /* LTT_PRIVATE_H */