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#ifndef __SCHED_TRACE_H_
#define __SCHED_TRACE_H_
#include <linux/types.h>
typedef __u8 u8;
typedef __u32 u32;
typedef __u16 u16;
typedef enum {
ST_INVOCATION = 0,
ST_ARRIVAL = 1,
ST_DEPARTURE = 2,
ST_PREEMPTION = 3,
ST_SCHEDULED = 4,
ST_JOB_RELEASE = 5,
ST_JOB_COMPLETION = 6,
ST_CAPACITY_RELEASE = 7,
ST_CAPACITY_ALLOCATION = 8,
ST_MAX
} trace_type_t;
typedef struct {
trace_type_t trace:8;
unsigned int size:24;
unsigned long long timestamp;
} trace_header_t;
typedef struct {
unsigned int is_rt:1;
unsigned int is_server:1;
task_class_t class:4;
unsigned int budget:24;
u32 deadline;
pid_t pid;
} task_info_t;
typedef struct {
trace_header_t header;
unsigned long flags;
} invocation_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
} arrival_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
} departure_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
task_info_t by;
} preemption_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
} scheduled_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
u16 period;
u16 wcet;
} release_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
u16 period;
u16 wcet;
int tardiness;
unsigned int job_no;
} completion_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
} cap_release_record_t;
typedef struct {
trace_header_t header;
task_info_t task;
u16 budget;
u32 deadline;
pid_t donor;
} cap_allocation_record_t;
enum {
INVALID_HEADER = 1
};
typedef int (*record_callback_fn)(trace_header_t* hdr);
typedef struct {
record_callback_fn handler[ST_MAX];
} record_callback_t;
#define init_record_callback(a) memset(a, 0, sizeof(record_callback_t))
#define set_callback(type, fn, a) do {(a)->handler[type] = fn; } while (0);
int walk_sched_trace(void* start, void* end, record_callback_t *cb);
int walk_sched_traces_ordered(void** start, void** end, unsigned int count,
record_callback_t *cb);
int walk_sched_trace_file(const char* name, int keep_mapped,
record_callback_t *cb);
int walk_sched_trace_files_ordered(const char** names, unsigned int count,
int keep_mapped, record_callback_t *cb);
#endif
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