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jaxne 5 years ago
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/* Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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END OF TERMS AND CONDITIONS
Copyright (c) 2020 by Asteria Development
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
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See the License for the specific language governing permissions and
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*/
/* ===================================================================
$
aetime works under the same premise as Casey Muratori's ctime under
the public domain. It's a small utility that allows you to time how
long your machine spends building your project. It works in the same
manner as a begin/end block in your typical profiler.
$ WARNING
---------
This software is provided UNDER AN "AS IS" BASIS. The author makes NO
WARRENTY to the RELIABILITY of this software. Take this message as your
only warning, USE AT YOUR OWN RISK. This shit could even format your
entire disk! Not my fault though.
INSTRUCTIONS
------------
On the first line of your build script, write
aetime --begin <project-name>.aet
then on the last line, write
aetime --end <project-name>.aet
and the program will output how many seconds it took to build your project!
Also if you must debug the project, you can append a '-v' flag to the end
of the argument list for additional debug output into the console.
======================================================================== */
#include <stdint.h>
#define global static
#define u8 uint8_t
#define u32 uint32_t
#define f32 float
#define uint u32
#define GenerateMagic(a, b, c, d) (((u32)(a) << 0) | ((u32)(b) << 8) | ((u32)(c) << 16) | ((u32)(d) << 24))
#pragma pack(push, 1)
#define AET_MAGIC_VALUE GenerateMagic('a', 'e', 't', 'c')
typedef struct timer_file_header {
u32 Magic;
} timer_file_header;
typedef struct timer_file_entry {
f32 Elapsed;
} timer_file_entry;
typedef struct timer_entry_array {
u32 EntryCount;
timer_file_entry* Entries;
} timer_entry_array;
#pragma pack(pop)
int StringLength(char* String) {
int Count = 0;
while (*String++) {
++Count;
}
return Count;
}
bool StringsMatch(char* A, char* B) {
if (!A || !B) {
return false;
}
while (*A && *B) {
if (*A != *B){
return false;
}
++A;
++B;
}
if (*A != *B){
return false;
} else {
return true;
}
}
global f32 GlobalFrequency;
#define COUNTERTOMS 1.f / (GlobalFrequency / 1000.f)
#define COUNTERTOUS COUNTERTOMS * 1000.f
#define COUNTERTONS COUNTERTOUS * 1000.f
#define COUNTERTOS COUNTERTOMS / 1000.f
#include <stdio.h>
#include <stdbool.h>
//
// PLATFORM SPECIFIC CODE
//
// note(jax): Eventually support Mac...
#define BUILD_LINUX
#ifdef BUILD_LINUX
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <linux/limits.h>
#include <sys/time.h>
global void Usage(char** Args) {
fprintf(stdout, "Usage: %s --begin <file>.aet [-v|--v|--verbose|-verbose]\n", Args[0]);
fprintf(stdout, " %s --end <file>.aet [-v|--v|--verbose|-verbose]\n", Args[0]);
}
// This function assumes FileName is a full path with an extension
char* GetBaseName(char* FileName) {
int BaseNameSize = 0;
char* BaseName = (char*)malloc(sizeof(char)*PATH_MAX);
char* BaseNameBegin = FileName;
char* BaseNameEnd = FileName + StringLength(FileName);
bool RightOfPeriod = false;
for (char* Scan = BaseNameBegin; *Scan; ++Scan) {
if ((Scan[0] == '\\') || (Scan[0] == '/')) {
BaseNameBegin = Scan + 1;
}
if (Scan[0] == '.') {
BaseNameEnd = Scan;
RightOfPeriod = true;
}
else if (!RightOfPeriod) {
++BaseNameSize;
}
}
memcpy(BaseName, BaseNameBegin, BaseNameSize);
BaseName[BaseNameSize] = 0;
return BaseName;
}
uint64_t rdtsc(){
unsigned int lo,hi;
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return ((uint64_t)hi << 32) | lo;
}
static uint64_t _get_tsc_ticks_since_reset_p() {
uint32_t countlo, counthi;
uint32_t chx; // Set to processor signature register - set to chip/socket & core ID by recent Linux kernels.
__asm__ volatile("RDTSCP" : "=a" (countlo), "=d" (counthi), "=c" (chx));
return (uint64_t(counthi) << 32) | countlo;
}
#define BILLION 1E9
int main(int ArgCount, char** Args) {
bool IsVerbose = false;
if (StringsMatch(Args[3], "--verbose") ||
StringsMatch(Args[3], "--v") ||
StringsMatch(Args[3], "-verbose") ||
StringsMatch(Args[3], "-v")) {
IsVerbose = true;
}
char Path[PATH_MAX];
sprintf(Path, "/tmp/");
struct timeval tv;
gettimeofday(&tv, nullptr);
double init_time_ = tv.tv_sec + tv.tv_usec*0.000001;
double init_tick_ = _get_tsc_ticks_since_reset_p();
gettimeofday(&tv, nullptr);
double seconds_since_epoch = tv.tv_sec + tv.tv_usec*0.000001;
const double dTime = seconds_since_epoch - init_time_;
const uint64_t dTicks = _get_tsc_ticks_since_reset_p() - init_tick_;
GlobalFrequency = 1000000;
if (ArgCount >= 3) {
if (StringsMatch(Args[1], "--begin")) {
char* FileName = Args[2];
sprintf(Path + strlen(Path), "%s", FileName);
FILE* Dest = fopen(Path, "wb");
if (Dest) {
if (IsVerbose) {
printf("Writing to '%s'\n", Path);
}
timer_file_header Header = {0};
Header.Magic = AET_MAGIC_VALUE;
fwrite(&Header, sizeof(Header), 1, Dest);
timer_file_entry Entry = {0};
struct timespec Timer;
clock_gettime(CLOCK_MONOTONIC_RAW, &Timer);
Entry.Elapsed = (Timer.tv_nsec) + (Timer.tv_sec) * BILLION;
printf("Compilation started for %s\n", GetBaseName(FileName));
if (fwrite(&Entry, sizeof(Entry), 1, Dest) != 1) {
fprintf(stdout, "ERROR: Failed to append new start entry to file '%s'.\n", FileName);
} else {
fclose(Dest);
}
} else {
fprintf(stdout, "ERROR: Failed to open file '%s'.\n", FileName);
}
} else if (StringsMatch(Args[1], "--end")) {
char* FileName = Args[2];
sprintf(Path + strlen(Path), "%s", FileName);
FILE* Dest = fopen(Path, "rb");
if (Dest) {
if (IsVerbose) {
printf("Reading from '%s'\n", Path);
}
timer_file_header Header = {0};
fread(&Header, sizeof(Header), 1, Dest);
if (IsVerbose) {
printf("struct timer_file_header {\n Magic: %u\n};\n", Header.Magic);
}
timer_file_entry Entry = {0};
if(fread(&Entry, sizeof(Entry), 1, Dest) == 1) {
struct timespec Timer;
clock_gettime(CLOCK_MONOTONIC_RAW, &Timer);
f32 Elapsed = ((Timer.tv_nsec) + (Timer.tv_sec) * BILLION) - Entry.Elapsed;
f32 Milliseconds = Elapsed / 1000.f / 1000.f;
f32 Seconds = Milliseconds / 1000.f;
printf("Compilation ended: %f seconds\n", Seconds);
} else {
fprintf(stdout, "ERROR: Failed to read start entry from file '%s'.\n", FileName);
}
fclose(Dest);
if (remove(Path) != 0) {
fprintf(stdout, "ERROR: Failed to remove file '%s'.\n", FileName);
}
} else {
fprintf(stdout, "ERROR: Failed to open file '%s'.\n", FileName);
}
} else {
Usage(Args);
}
} else {
Usage(Args);
}
return 1;
}
#elif BUILD_WIN32
#include <Windows.h>
global void Usage(char** Args) {
fprintf(stderr, "Usage: %s --begin <file>.aet [-v|--v|--verbose|-verbose]\n", Args[0]);
fprintf(stderr, " %s --end <file>.aet [-v|--v|--verbose|-verbose]\n", Args[0]);
}
// This function assumes FileName is a full path with an extension
char* GetBaseName(char* FileName) {
int BaseNameSize = 0;
char* BaseName = malloc(sizeof(char)*MAX_PATH);
char* BaseNameBegin = FileName;
char* BaseNameEnd = FileName + StringLength(FileName);
bool RightOfPeriod = false;
for (char* Scan = BaseNameBegin; *Scan; ++Scan) {
if ((Scan[0] == '\\') || (Scan[0] == '/')) {
BaseNameBegin = Scan + 1;
}
if (Scan[0] == '.') {
BaseNameEnd = Scan;
RightOfPeriod = true;
}
else if (!RightOfPeriod) {
++BaseNameSize;
}
}
memcpy(BaseName, BaseNameBegin, BaseNameSize);
BaseName[BaseNameSize] = 0;
return BaseName;
}
int main(int ArgCount, char** Args) {
bool IsVerbose = false;
if (StringsMatch(Args[3], "--verbose") ||
StringsMatch(Args[3], "--v") ||
StringsMatch(Args[3], "-verbose") ||
StringsMatch(Args[3], "-v")) {
IsVerbose = true;
}
LARGE_INTEGER _F;
QueryPerformanceFrequency(&_F);
GlobalFrequency = (f32)_F.QuadPart;
char Path[MAX_PATH];
GetTempPathA(MAX_PATH, Path);
if (ArgCount >= 3) {
if (StringsMatch(Args[1], "--begin")) {
char* FileName = Args[2];
sprintf(Path, "%s\\%s", Path, FileName);
FILE* Dest = fopen(Path, "wb");
if (Dest) {
if (IsVerbose) {
printf("Writing to '%s'\n", Path);
}
timer_file_header Header = {0};
Header.Magic = AET_MAGIC_VALUE;
fwrite(&Header, sizeof(Header), 1, Dest);
LARGE_INTEGER Start;
timer_file_entry Entry = {0};
QueryPerformanceCounter(&Start);
Entry.Elapsed = (f32)Start.QuadPart;
printf("Compilation started for %s\n", GetBaseName(FileName));
if (fwrite(&Entry, sizeof(Entry), 1, Dest) != 1) {
fprintf(stderr, "ERROR: Failed to append new start entry to file '%s'.\n", FileName);
} else {
fclose(Dest);
}
} else {
fprintf(stderr, "ERROR: Failed to open file '%s'.\n", FileName);
}
} else if (StringsMatch(Args[1], "--end")) {
char* FileName = Args[2];
sprintf(Path, "%s\\%s", Path, FileName);
FILE* Dest = fopen(Path, "rb");
if (Dest) {
if (IsVerbose) {
printf("Reading from '%s'\n", Path);
}
timer_file_header Header = {0};
fread(&Header, sizeof(Header), 1, Dest);
if (IsVerbose) {
printf("struct timer_file_header {\n Magic: %u\n};\n", Header.Magic);
}
timer_file_entry Entry = {0};
if(fread(&Entry, sizeof(Entry), 1, Dest) == 1) {
LARGE_INTEGER End;
QueryPerformanceCounter(&End);
f32 Elapsed = ((f32)End.QuadPart) - Entry.Elapsed;
f32 Seconds = Elapsed * COUNTERTOS;
f32 Milliseconds = Elapsed * COUNTERTOMS;
printf("Compilation ended: %f seconds\n", Seconds);
} else {
fprintf(stderr, "ERROR: Failed to read start entry from file '%s'.\n", FileName);
}
fclose(Dest);
if (remove(Path) != 0) {
fprintf(stderr, "ERROR: Failed to remove file '%s'.\n", FileName);
}
} else {
fprintf(stderr, "ERROR: Failed to open file '%s'.\n", FileName);
}
} else {
Usage(Args);
}
} else {
Usage(Args);
}
return 1;
}
#endif

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@echo off
REM -Zi for debugging
cl -nologo -DBUILD_WIN32=1 -FC -O2 -TC -EHsc aetime.c /link
@if ERRORLEVEL 1 exit /B 1
robocopy . ../ aetime.exe > nul

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#!/bin/sh
set -eu
CXX=${CXX:-clang++}
${CXX} $* -Wwritable-strings -DBUILD_LINUX=1 -I. -O3 -o aetime aetime.c
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