perf.h

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#pragma once
 
#include <kernel/cpu/interrupt.h>
#include <kernel/sync/lock.h>
 
#include <time.h>
 
typedef struct cpu cpu_t;
typedef struct thread thread_t;
 
typedef struct
{
    clock_t activeClocks;
    clock_t interruptClocks;
    clock_t idleClocks;
    clock_t interruptBegin;
    clock_t interruptEnd;
    lock_t lock;
} perf_cpu_ctx_t;
 
typedef struct
{
    _Atomic(clock_t) userClocks; 
    _Atomic(clock_t)
        kernelClocks;  
    clock_t startTime; 
} perf_process_ctx_t;
 
typedef struct
{
    clock_t syscallBegin; 
    clock_t syscallEnd;
} perf_thread_ctx_t;
 
void perf_cpu_ctx_init(perf_cpu_ctx_t* ctx);
 
void perf_process_ctx_init(perf_process_ctx_t* ctx);
 
void perf_thread_ctx_init(perf_thread_ctx_t* ctx);
 
void perf_init(void);
 
void perf_interrupt_begin(cpu_t* self);
 
void perf_interrupt_end(cpu_t* self);
 
void perf_syscall_begin(void);
 
void perf_syscall_end(void);