/**
* @file
* @brief platform neutral timing utilities
- * @version $Id: debug.c 17143 2008-01-02 20:56:33Z beck $
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
-#ifndef _WIN32
-#include <unistd.h>
-#endif
-
#include "timing.h"
-#include "set.h"
-#include "hashptr.h"
+#include "xmalloc.h"
+#include "error.h"
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#else
+#include <unistd.h>
#define HAVE_GETTIMEOFDAY
/*
#include <stddef.h>
-static INLINE void _time_get(ir_timer_val_t *val);
-static INLINE void _time_reset(ir_timer_val_t *val);
-static INLINE unsigned long _time_to_msec(const ir_timer_val_t *val);
-static INLINE ir_timer_val_t *_time_add(ir_timer_val_t *res,
- const ir_timer_val_t *lhs, const ir_timer_val_t *rhs);
-static INLINE ir_timer_val_t *_time_sub(ir_timer_val_t *res,
- const ir_timer_val_t *lhs, const ir_timer_val_t *rhs);
+static inline void _time_reset(ir_timer_val_t *val);
/**
* A timer.
*/
-struct _ir_timer_t {
+struct ir_timer_t {
ir_timer_val_t elapsed; /**< the elapsed time so far */
ir_timer_val_t start; /**< the start value of the timer */
- ir_timer_t *link; /**< link to the next entry in the timer stack */
- const char *name; /**< the name of the timer used for identification */
- const char *desc; /**< a description if the timer */
+ ir_timer_t *parent; /**< parent of a timer */
+ ir_timer_t *displaced; /**< former timer in case of timer_push */
unsigned running : 1; /**< set if this timer is running */
};
-/**
- * Compare two timers.
- */
-static int ir_timer_cmp(const void *a, const void *b, size_t size)
-{
- const ir_timer_t *t1 = a;
- const ir_timer_t *t2 = b;
- (void) size;
- return strcmp(t1->name, t2->name);
-}
-
-/** The set containing all currently registered timers. */
-static set *timers = NULL;
-
/** The top of the timer stack */
static ir_timer_t *timer_stack;
-/** Initialize the timer module. */
-static void timing_init(void)
+ir_timer_t *ir_timer_new(void)
{
- timers = new_set(ir_timer_cmp, 16);
- timer_stack = NULL;
+ ir_timer_t *timer = XMALLOCZ(ir_timer_t);
+ _time_reset(&timer->elapsed);
+ _time_reset(&timer->start);
+ return timer;
}
-ir_timer_t *ir_timer_register(const char *name, const char *desc)
+void ir_timer_free(ir_timer_t *timer)
{
- unsigned hash = HASH_STR(name, strlen(name));
- ir_timer_t timer;
-
- _time_reset(&timer.elapsed);
- _time_reset(&timer.start);
- timer.link = NULL;
- timer.name = name;
- timer.desc = desc;
- timer.running = 0;
-
- if (!timers)
- timing_init();
-
- return set_insert(timers, &timer, sizeof(timer), hash);
+ xfree(timer);
}
#ifdef HAVE_GETTIMEOFDAY
-static INLINE void _time_get(ir_timer_val_t *val)
+static inline void _time_get(ir_timer_val_t *val)
{
gettimeofday(val, NULL);
}
-static INLINE void _time_reset(ir_timer_val_t *val)
+static inline void _time_reset(ir_timer_val_t *val)
{
timerclear(val);
}
-static INLINE unsigned long _time_to_msec(const ir_timer_val_t *elapsed)
+static inline unsigned long _time_to_msec(const ir_timer_val_t *elapsed)
{
return (unsigned long) elapsed->tv_sec * 1000UL
+ (unsigned long) elapsed->tv_usec / 1000UL;
}
-static INLINE unsigned long _time_to_usec(const ir_timer_val_t *elapsed)
+static inline unsigned long _time_to_usec(const ir_timer_val_t *elapsed)
{
return (unsigned long) elapsed->tv_sec * 1000000UL
+ (unsigned long) elapsed->tv_usec;
}
-static INLINE ir_timer_val_t *_time_add(ir_timer_val_t *res,
+static inline double _time_to_sec(const ir_timer_val_t *elapsed)
+{
+ return (double)elapsed->tv_sec + (double)elapsed->tv_usec / 1000000.0;
+}
+
+static inline ir_timer_val_t *_time_add(ir_timer_val_t *res,
const ir_timer_val_t *lhs, const ir_timer_val_t *rhs)
{
timeradd(lhs, rhs, res);
return res;
}
-static INLINE ir_timer_val_t *_time_sub(ir_timer_val_t *res,
+static inline ir_timer_val_t *_time_sub(ir_timer_val_t *res,
const ir_timer_val_t *lhs, const ir_timer_val_t *rhs)
{
timersub(lhs, rhs, res);
#elif defined(_WIN32)
-static INLINE void _time_get(ir_timer_val_t *val)
+static inline void _time_get(ir_timer_val_t *val)
{
- if(!QueryPerformanceCounter(&val->hi_prec))
+ if (!QueryPerformanceCounter(&val->hi_prec))
val->lo_prec = timeGetTime();
}
-static INLINE void _time_reset(ir_timer_val_t *val)
+static inline void _time_reset(ir_timer_val_t *val)
{
memset(val, 0, sizeof(val[0]));
}
-static INLINE unsigned long _time_to_msec(const ir_timer_val_t *elapsed)
+static inline unsigned long _time_to_msec(const ir_timer_val_t *elapsed)
{
LARGE_INTEGER freq;
- if(!QueryPerformanceFrequency(&freq))
+ if (!QueryPerformanceFrequency(&freq))
return (unsigned long) elapsed->lo_prec;
return (unsigned long) ((elapsed->hi_prec.QuadPart * 1000) / freq.QuadPart);
}
-static INLINE unsigned long _time_to_usec(const ir_timer_val_t *elapsed)
+static inline unsigned long _time_to_usec(const ir_timer_val_t *elapsed)
{
LARGE_INTEGER freq;
- if(!QueryPerformanceFrequency(&freq))
- return (unsigned long) elapsed->lo_prec;
+ if (!QueryPerformanceFrequency(&freq))
+ return (unsigned long) elapsed->lo_prec * 1000;
return (unsigned long) ((elapsed->hi_prec.QuadPart * 1000000) / freq.QuadPart);
}
-static INLINE ir_timer_val_t *_time_add(ir_timer_val_t *res, const ir_timer_val_t *lhs, const ir_timer_val_t *rhs)
+static inline double _time_to_sec(const ir_timer_val_t *elapsed)
+{
+ LARGE_INTEGER freq;
+
+ if (!QueryPerformanceFrequency(&freq))
+ return (double) elapsed->lo_prec / 1000.;
+
+ return (double)elapsed->hi_prec.QuadPart / (double)freq.QuadPart;
+}
+
+static inline ir_timer_val_t *_time_add(ir_timer_val_t *res, const ir_timer_val_t *lhs, const ir_timer_val_t *rhs)
{
LARGE_INTEGER dummy;
- if(QueryPerformanceFrequency(&dummy))
+ if (QueryPerformanceFrequency(&dummy))
res->hi_prec.QuadPart = lhs->hi_prec.QuadPart + rhs->hi_prec.QuadPart;
else
res->lo_prec = lhs->lo_prec + rhs->lo_prec;
return res;
}
-static INLINE ir_timer_val_t *_time_sub(ir_timer_val_t *res, const ir_timer_val_t *lhs, const ir_timer_val_t *rhs)
+static inline ir_timer_val_t *_time_sub(ir_timer_val_t *res, const ir_timer_val_t *lhs, const ir_timer_val_t *rhs)
{
LARGE_INTEGER dummy;
- if(QueryPerformanceFrequency(&dummy))
+ if (QueryPerformanceFrequency(&dummy))
res->hi_prec.QuadPart = lhs->hi_prec.QuadPart - rhs->hi_prec.QuadPart;
else
res->lo_prec = lhs->lo_prec - rhs->lo_prec;
struct sched_param p;
int res, max, algo;
- if(!std_sched_param_init) {
+ if (!std_sched_param_init) {
res = sched_getparam(pid, &std_sched_param);
+ if (res != 0)
+ return res;
std_sched_param_init = 1;
}
algo = sched_getscheduler(pid);
max = sched_get_priority_max(algo);
- memcpy(&p, &std_sched_param, sizeof(p));
+ p = std_sched_param;
p.sched_priority = max;
res = sched_setparam(pid, &p);
int res = 0;
pid_t pid = getpid();
- if(std_sched_param_init)
+ if (std_sched_param_init)
res = sched_setparam(pid, &std_sched_param);
return res;
int ir_timer_leave_high_priority(void)
{
int res = 0;
- if(!SetThreadPriority(GetCurrentThread(), initial_priority)) {
+ if (!SetThreadPriority(GetCurrentThread(), initial_priority)) {
fprintf(stderr, "Failed to leave high priority (%d)\n", GetLastError());
res = GetLastError();
}
{
int res = 0;
initial_priority = GetThreadPriority(GetCurrentThread());
- if(!SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST)) {
+ if (!SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST)) {
fprintf(stderr, "Failed to enter high priority (%d)\n", GetLastError());
res = GetLastError();
}
int heapstatus;
size_t res = 0;
hinfo._pentry = NULL;
- while((heapstatus = _heapwalk(&hinfo)) == _HEAPOK)
+ while ((heapstatus = _heapwalk(&hinfo)) == _HEAPOK)
res += hinfo._useflag == _USEDENTRY ? hinfo._size : 0;
return res;
}
/* start a timer */
void ir_timer_start(ir_timer_t *timer)
{
+ if (timer->running)
+ panic("timer started twice");
+
_time_reset(&timer->start);
_time_get(&timer->start);
timer->running = 1;
+
+ if (timer->parent == NULL) {
+ timer->parent = timer_stack;
+ } else if (timer->parent != timer_stack) {
+ panic("timer used at different stack positions");
+ }
+ timer_stack = timer;
}
void ir_timer_reset_and_start(ir_timer_t *timer)
ir_timer_start(timer);
}
-/* stop a running timer */
void ir_timer_stop(ir_timer_t *timer)
{
- /* If the timer is running stop, measure the time and add it to the
- * elapsed time. */
- if(timer->running) {
- ir_timer_val_t val;
- ir_timer_val_t tgt;
+ if (!timer->running)
+ panic("attempting to stop stopped timer");
+ if (timer != timer_stack)
+ panic("timer stack error");
+ timer_stack = timer->parent;
+
+ ir_timer_val_t val;
+ ir_timer_val_t tgt;
+
+ _time_get(&val);
+ timer->running = 0;
+ _time_add(&timer->elapsed, &timer->elapsed, _time_sub(&tgt, &val, &timer->start));
+}
+
+void ir_timer_init_parent(ir_timer_t *timer)
+{
+ if (timer == NULL)
+ return;
+ if (timer->parent != NULL && timer->parent != timer_stack)
+ panic("timer parent mismatch");
+ timer->parent = timer_stack;
+}
+
+void ir_timer_push(ir_timer_t *timer)
+{
+ if (timer->running)
+ panic("timer started twice");
- _time_get(&val);
- timer->running = 0;
- _time_add(&timer->elapsed, &timer->elapsed, _time_sub(&tgt, &val, &timer->start));
- _time_reset(&timer->start);
+ ir_timer_t *parent = timer->parent;
+ if (timer->parent == NULL)
+ panic("pushing timer with unknown parent");
+
+ timer->displaced = timer_stack;
+ for (ir_timer_t *t = timer_stack; t != parent; t = t->parent) {
+ if (t == NULL)
+ panic("parent timer not on stack");
+ ir_timer_stop(t);
}
+ timer_stack = parent;
+
+ ir_timer_start(timer);
}
-/* push a timer on the stack */
-int ir_timer_push(ir_timer_t *timer)
+static void start_stack(ir_timer_t *timer, ir_timer_t *stop)
{
- if (timer->link)
- return 0;
- timer->link = timer_stack;
- if (timer_stack)
- ir_timer_stop(timer_stack);
+ if (timer == stop)
+ return;
+ start_stack(timer->parent, stop);
ir_timer_start(timer);
- timer_stack = timer;
- return 1;
}
-/* pop a timer from the stack */
-ir_timer_t *ir_timer_pop(void)
+void ir_timer_pop(ir_timer_t *timer)
{
- ir_timer_t *timer = timer_stack;
- if (timer) {
- ir_timer_stop(timer);
- timer_stack = timer->link;
- timer->link = NULL;
- if (timer_stack)
- ir_timer_start(timer_stack);
- }
- return timer;
+ if (!timer->running)
+ panic("attempting to stop stopped timer");
+ ir_timer_t *displaced = timer->displaced;
+ if (displaced == NULL)
+ panic("timer start/stop/push/pop mismatch");
+
+ ir_timer_t *parent = timer->parent;
+ timer->displaced = NULL;
+
+ ir_timer_stop(timer);
+ start_stack(displaced, parent);
}
unsigned long ir_timer_elapsed_msec(const ir_timer_t *timer)
ir_timer_val_t v;
const ir_timer_val_t *elapsed = &timer->elapsed;
- if(timer->running) {
+ if (timer->running) {
elapsed = &v;
_time_get(&v);
_time_add(&v, &timer->elapsed, _time_sub(&v, &v, &timer->start));
ir_timer_val_t v;
const ir_timer_val_t *elapsed = &timer->elapsed;
- if(timer->running) {
+ if (timer->running) {
elapsed = &v;
_time_get(&v);
_time_add(&v, &timer->elapsed, _time_sub(&v, &v, &timer->start));
return _time_to_usec(elapsed);
}
-const char *ir_timer_get_name(const ir_timer_t *timer) {
- return timer->name;
-}
+double ir_timer_elapsed_sec(const ir_timer_t *timer)
+{
+ ir_timer_val_t v;
+ const ir_timer_val_t *elapsed = &timer->elapsed;
-const char *ir_timer_get_description(const ir_timer_t *timer) {
- return timer->desc;
+ if (timer->running) {
+ elapsed = &v;
+ _time_get(&v);
+ _time_add(&v, &timer->elapsed, _time_sub(&v, &v, &timer->start));
+ }
+ return _time_to_sec(elapsed);
}
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