--- /dev/null
+#include <glib.h>
+#include "ltt/ltt.h"
+
+/* 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
+ 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
+};
+
+struct _ltt_eventtype{
+ 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
+};
+
+struct _ltt_field{
+ unsigned field_pos; //field position within its parent
+ ltt_type * 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
+ short fixed_root; //offset fixed according to the root
+ //-1:uninitialized, 0:unfixed, 1:fixed
+ off_t offset_parent; //offset from the parent,-1:uninitialized
+ short fixed_parent; //offset fixed according to its parent
+ //-1:uninitialized, 0:unfixed, 1:fixed
+ // void * base_address; //base address of the field ????
+
+ int field_size; //>0: size of the field,
+ //0 : uncertain
+ //-1: uninitialize
+ int element_size; //the element size of the sequence
+ int field_fixed; //0: field has string or sequence
+ //1: field has no string or sequenc
+ //-1: uninitialize
+
+ struct _ltt_field * parent;
+ struct _ltt_field ** 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 _ltt_facility{
+ 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
+ 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
+};
+
+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 */
+};
+
+
+
+
+
+/*****************************************************************************
+ 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))
+
+
+
+
+/* obtain the time of an event */
+ltt_time getEventTime(ltt_tracefile * tf);
+
+/* get the data type size and endian type of the local machine */
+void getDataEndianType(ltt_arch_size * size, ltt_arch_endian * endian);
+
+
+typedef struct _ptr_wrap{
+ gpointer ptr;
+} ptr_wrap;
+
projects / lttv.git / blobdiff