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101 lines
2.6 KiB
C

#include "types.h"
#include <stdlib.h> // malloc the profiling buffer
#ifdef PROFILING_H
#error only include profiling.h once
#endif
#define PROFILING_H
#ifdef PROFILING
#define PROFILING_BUFFER_SIZE (1 * 1024 * 1024)
#ifdef PROFILING_IMPL
#define SPALL_IMPLEMENTATION
#pragma warning(disable : 4996) // spall uses fopen
#include "spall.h"
#define WIN32_LEAN_AND_MEAN
#define VC_EXTRALEAN
#define NOMINMAX
#include <Windows.h>
// This is slow, if you can use RDTSC and set the multiplier in SpallInit, you'll have far better timing accuracy
double get_time_in_micros()
{
static double invfreq;
if (!invfreq)
{
LARGE_INTEGER frequency;
QueryPerformanceFrequency(&frequency);
invfreq = 1000000.0 / frequency.QuadPart;
}
LARGE_INTEGER counter;
QueryPerformanceCounter(&counter);
return counter.QuadPart * invfreq;
}
SpallProfile spall_ctx;
THREADLOCAL SpallBuffer spall_buffer;
THREADLOCAL unsigned char *buffer_data = NULL;
THREADLOCAL uint32_t my_thread_id = 0;
void init_profiling(const char *filename)
{
spall_ctx = SpallInit(filename, 1);
}
void init_profiling_mythread(uint32_t id)
{
my_thread_id = id;
if (buffer_data != NULL)
{
*(int *)0 = 0;
}
buffer_data = malloc(PROFILING_BUFFER_SIZE);
spall_buffer = (SpallBuffer){
.length = PROFILING_BUFFER_SIZE,
.data = buffer_data,
};
SpallBufferInit(&spall_ctx, &spall_buffer);
}
void end_profiling_mythread()
{
SpallBufferFlush(&spall_ctx, &spall_buffer);
SpallBufferQuit(&spall_ctx, &spall_buffer);
free(buffer_data);
}
void end_profiling()
{
SpallQuit(&spall_ctx);
}
#endif // PROFILING_IMPL
#include "spall.h"
extern SpallProfile spall_ctx;
extern THREADLOCAL SpallBuffer spall_buffer;
extern THREADLOCAL uint32_t my_thread_id;
double get_time_in_micros();
void init_profiling(const char *filename);
// you can pass anything to id as long as it's different from other threads
void init_profiling_mythread(uint32_t id);
void end_profiling();
void end_profiling_mythread();
#define STRINGIZE(x) STRINGIZE2(x)
#define STRINGIZE2(x) #x
#define PROFILE_SCOPE(name) DeferLoop(SpallTraceBeginLenTidPid(&spall_ctx, &spall_buffer, "L" STRINGIZE(__LINE__) " " name , sizeof("L" STRINGIZE(__LINE__) " " name) - 1, my_thread_id, 0, get_time_in_micros()), SpallTraceEndTidPid(&spall_ctx, &spall_buffer, my_thread_id, 0, get_time_in_micros()))
#else // PROFILING
void inline init_profiling(const char *filename) { (void)filename; }
// you can pass anything to id as long as it's different from other threads
void inline init_profiling_mythread(uint32_t id) { (void)id; }
void inline end_profiling() {}
void inline end_profiling_mythread() {}
#define PROFILE_SCOPE(name)
#endif