8 #define LTT_PACKED_STRUCT __attribute__ ((packed))
10 /* enumeration definition */
12 typedef enum _BuildinEvent
{
13 TRACE_FACILITY_LOAD
= 0,
14 TRACE_BLOCK_START
= 17,
16 TRACE_TIME_HEARTBEAT
= 19
20 /* structure definition */
22 typedef struct _FacilityLoad
{
26 } LTT_PACKED_STRUCT FacilityLoad
;
28 typedef struct _BlockStart
{
29 LttTime time
; //Time stamp of this block
30 LttCycleCount cycle_count
; //cycle count of the event
31 guint32 block_id
; //block id
32 } LTT_PACKED_STRUCT BlockStart
;
34 typedef struct _BlockEnd
{
35 LttTime time
; //Time stamp of this block
36 LttCycleCount cycle_count
; //cycle count of the event
37 guint32 block_id
; //block id
38 } LTT_PACKED_STRUCT BlockEnd
;
40 typedef struct _TimeHeartbeat
{
41 LttTime time
; //Time stamp of this block
42 LttCycleCount cycle_count
; //cycle count of the event
43 } LTT_PACKED_STRUCT TimeHeartbeat
;
47 char * type_name
; //type name if it is a named type
48 char * element_name
; //elements name of the struct
51 LttTypeEnum type_class
; //which type
52 char ** enum_strings
; //for enum labels
53 struct _LttType
** element_type
; //for array, sequence and struct
54 unsigned element_number
; //the number of elements
55 //for enum, array, sequence and structure
61 int index
; //id of the event type within the facility
62 LttFacility
* facility
; //the facility that contains the event type
63 LttField
* root_field
; //root field
64 int latest_block
; //the latest block using the event type
65 int latest_event
; //the latest event using the event type
69 unsigned field_pos
; //field position within its parent
70 LttType
* field_type
; //field type, if it is root field
71 //then it must be struct type
73 off_t offset_root
; //offset from the root, -1:uninitialized
74 short fixed_root
; //offset fixed according to the root
75 //-1:uninitialized, 0:unfixed, 1:fixed
76 off_t offset_parent
; //offset from the parent,-1:uninitialized
77 short fixed_parent
; //offset fixed according to its parent
78 //-1:uninitialized, 0:unfixed, 1:fixed
79 // void * base_address; //base address of the field ????
81 int field_size
; //>0: size of the field,
84 int sequ_number_size
; //the size of unsigned used to save the
85 //number of elements in the sequence
87 int element_size
; //the element size of the sequence
88 int field_fixed
; //0: field has string or sequence
89 //1: field has no string or sequenc
92 struct _LttField
* parent
;
93 struct _LttField
** child
; //for array, sequence and struct:
94 //list of fields, it may have only one
95 //field if the element is not a struct
96 unsigned current_element
; //which element is currently processed
103 LttCycleCount event_cycle_count
;
104 LttTracefile
* tracefile
;
105 void * data
; //event data
106 int which_block
; //the current block of the event
107 int which_event
; //the position of the event
111 char * name
; //facility name
112 int event_number
; //number of events in the facility
113 LttChecksum checksum
; //checksum of the facility
114 guint32 base_id
; //base id of the facility
115 LttEventType
** events
; //array of event types
116 LttType
** named_types
;
117 int named_types_number
;
120 struct _LttTracefile
{
121 char * name
; //tracefile name
122 LttTrace
* trace
; //trace containing the tracefile
123 int fd
; //file descriptor
124 off_t file_size
; //file size
125 unsigned block_size
; //block_size
126 int block_number
; //number of blocks in the file
127 int which_block
; //which block the current block is
128 int which_event
; //which event of the current block
129 //is currently processed
130 LttTime current_event_time
; //time of the current event
131 BlockStart
* a_block_start
; //block start of the block
132 BlockEnd
* a_block_end
; //block end of the block
133 void * cur_event_pos
; //the position of the current event
134 void * buffer
; //the buffer containing the block
135 double cycle_per_nsec
; //Cycles per nsec
136 unsigned cur_heart_beat_number
; //current number of heart beat in the buf
137 LttCycleCount cur_cycle_count
; //current cycle count of the event
138 void * last_event_pos
;
140 LttTime prev_block_end_time
; //the end time of previous block
141 LttTime prev_event_time
; //the time of the previous event
143 LttCycleCount pre_cycle_count
; //previous cycle count of the event
144 int count
; //the number of overflow of cycle count
148 char * pathname
; //the pathname of the trace
149 guint facility_number
; //the number of facilities
150 guint control_tracefile_number
; //the number of control files
151 guint per_cpu_tracefile_number
; //the number of per cpu files
152 LttSystemDescription
* system_description
;//system description
154 GPtrArray
*control_tracefiles
; //array of control tracefiles
155 GPtrArray
*per_cpu_tracefiles
; //array of per cpu tracefiles
156 GPtrArray
*facilities
; //array of facilities
157 LttArchSize my_arch_size
; //data size of the local machine
158 LttArchEndian my_arch_endian
; //endian type of the local machine
161 struct _LttEventPosition
{
162 unsigned block_num
; //block which contains the event
163 unsigned event_num
; //event index in the block
164 unsigned event_offset
; //event position in the block
165 LttTime event_time
; //the time of the event
166 LttCycleCount event_cycle_count
; //the cycle count of the event
167 unsigned heart_beat_number
; //current number of heart beats
168 LttTracefile
*tf
; //tracefile containing the event
169 gboolean old_position
; //flag to show if it is the position
173 /* The characteristics of the system on which the trace was obtained
174 is described in a LttSystemDescription structure. */
176 struct _LttSystemDescription
{
182 LttArchEndian endian
;
184 char *kernel_release
;
185 char *kernel_version
;
188 char *hardware_platform
;
189 char *operating_system
;
190 unsigned ltt_major_version
;
191 unsigned ltt_minor_version
;
192 unsigned ltt_block_size
;
197 /*****************************************************************************
198 macro for size of some data types
199 *****************************************************************************/
200 #define EVENT_ID_SIZE sizeof(guint16)
201 #define TIME_DELTA_SIZE sizeof(guint32)
202 #define EVENT_HEADER_SIZE (EVENT_ID_SIZE + TIME_DELTA_SIZE)
205 #endif /* LTT_PRIVATE_H */