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/*
* This file is part of libFirm.
* Copyright (C) 2012 University of Karlsruhe.
*/
/**
* @file
* @brief Statistic events.
* @author Sebastian Hack
* @date 17.06.2007
*/
#include "statev_t.h"
#include "irprintf.h"
#include "stat_timing.h"
#include "util.h"
#include <assert.h>
#include <regex.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#define MAX_TIMER 256
int (stat_ev_enabled) = 0;
static FILE *stat_ev_file;
static int stat_ev_timer_sp;
static timing_ticks_t stat_ev_timer_elapsed[MAX_TIMER];
static timing_ticks_t stat_ev_timer_start[MAX_TIMER];
static regex_t regex;
static regex_t *filter;
static bool key_matches(const char *key)
{
if (filter == NULL)
return true;
return regexec(filter, key, 0, NULL, 0) == 0;
}
static void stat_ev_vprintf(char ev, const char *key, const char *fmt, va_list ap)
{
if (!key_matches(key))
return;
putc(ev, stat_ev_file);
putc(';', stat_ev_file);
fputs(key, stat_ev_file);
if (fmt != NULL) {
putc(';', stat_ev_file);
ir_vfprintf(stat_ev_file, fmt, ap);
}
putc('\n', stat_ev_file);
}
static void stat_ev_printf(char ev, const char *key, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
stat_ev_vprintf(ev, key, fmt, ap);
va_end(ap);
}
void stat_ev_tim_push(void)
{
int sp = stat_ev_timer_sp++;
assert((size_t)sp < ARRAY_SIZE(stat_ev_timer_start));
timing_ticks_t temp = timing_ticks();
stat_ev_timer_elapsed[sp] = 0;
stat_ev_timer_start[sp] = temp;
if (sp == 0) {
if (stat_ev_enabled) {
timing_enter_max_prio();
}
} else {
temp -= stat_ev_timer_start[sp-1];
stat_ev_timer_elapsed[sp-1] += temp;
}
}
void stat_ev_tim_pop(const char *name)
{
int sp = --stat_ev_timer_sp;
assert(sp >= 0);
timing_ticks_t temp = timing_ticks();
temp -= stat_ev_timer_start[sp];
stat_ev_timer_elapsed[sp] += temp;
if (name != NULL && stat_ev_enabled)
stat_ev_ull(name, stat_ev_timer_elapsed[sp]);
if (sp == 0) {
if (stat_ev_enabled) {
timing_leave_max_prio();
}
} else {
stat_ev_timer_start[sp-1] = timing_ticks();
}
}
void do_stat_ev_ctx_push_vfmt(const char *key, const char *fmt, va_list ap)
{
stat_ev_tim_push();
stat_ev_vprintf('P', key, fmt, ap);
stat_ev_tim_pop(NULL);
}
void (stat_ev_ctx_push_fmt)(const char *key, const char *fmt, ...)
{
if (!stat_ev_enabled)
return;
va_list ap;
va_start(ap, fmt);
do_stat_ev_ctx_push_vfmt(key, fmt, ap);
va_end(ap);
}
void (stat_ev_ctx_push_str)(const char *key, const char *str)
{
stat_ev_ctx_push_str_(key, str);
}
void do_stat_ev_ctx_pop(const char *key)
{
stat_ev_tim_push();
stat_ev_printf('O', key, NULL);
stat_ev_tim_pop(NULL);
}
void (stat_ev_ctx_pop)(const char *key)
{
stat_ev_ctx_pop_(key);
}
void do_stat_ev_dbl(const char *name, double value)
{
stat_ev_tim_push();
stat_ev_printf('E', name, "%g", value);
stat_ev_tim_pop(NULL);
}
void (stat_ev_dbl)(const char *name, double value)
{
stat_ev_dbl_(name, value);
}
void do_stat_ev_int(const char *name, int value)
{
stat_ev_tim_push();
stat_ev_printf('E', name, "%d", value);
stat_ev_tim_pop(NULL);
}
void (stat_ev_int)(const char *name, int value)
{
stat_ev_int_(name, value);
}
void do_stat_ev_ull(const char *name, unsigned long long value)
{
stat_ev_tim_push();
stat_ev_printf('E', name, "%llu", value);
stat_ev_tim_pop(NULL);
}
void (stat_ev_ull)(const char *name, unsigned long long value)
{
stat_ev_ull_(name, value);
}
void do_stat_ev(const char *name)
{
stat_ev_tim_push();
stat_ev_printf('E', name, "0.0");
stat_ev_tim_pop(NULL);
}
void (stat_ev)(const char *name)
{
stat_ev_(name);
}
void stat_ev_begin(const char *prefix, const char *filt)
{
char buf[512];
snprintf(buf, sizeof(buf), "%s.ev", prefix);
stat_ev_file = fopen(buf, "wt");
if (stat_ev_file == NULL) {
fprintf(stderr, "Warning: Couldn't create statev output '%s'\n", buf);
}
if (filt != NULL && filt[0] != '\0') {
filter = NULL;
if (regcomp(®ex, filt, REG_EXTENDED) == 0) {
filter = ®ex;
} else {
fprintf(stderr,
"Warning: Couldn't parse statev filter expression '%s'\n",
filt);
}
}
stat_ev_enabled = stat_ev_file != NULL;
}
void stat_ev_end(void)
{
if (stat_ev_file != NULL) {
fclose(stat_ev_file);
stat_ev_file = NULL;
stat_ev_enabled = 0;
}
if (filter != NULL) {
regfree(filter);
filter = NULL;
}
}
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