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-rw-r--r--src/common/timer.c479
1 files changed, 236 insertions, 243 deletions
diff --git a/src/common/timer.c b/src/common/timer.c
index c239a9d70..bb2458233 100644
--- a/src/common/timer.c
+++ b/src/common/timer.c
@@ -26,12 +26,12 @@
#define TIMER_MAX_INTERVAL 1000
// timers (array)
-static struct TimerData* timer_data = NULL;
+static struct TimerData *timer_data = NULL;
static int timer_data_max = 0;
static int timer_data_num = 0;
// free timers (array)
-static int* free_timer_list = NULL;
+static int *free_timer_list = NULL;
static int free_timer_list_max = 0;
static int free_timer_list_pos = 0;
@@ -53,85 +53,87 @@ time_t start_time;
/*----------------------------
- * Timer debugging
+ * Timer debugging
*----------------------------*/
struct timer_func_list {
- struct timer_func_list* next;
- TimerFunc func;
- char* name;
+ struct timer_func_list *next;
+ TimerFunc func;
+ char *name;
} *tfl_root = NULL;
/// Sets the name of a timer function.
-int add_timer_func_list(TimerFunc func, char* name)
+int add_timer_func_list(TimerFunc func, char *name)
{
- struct timer_func_list* tfl;
-
- if (name) {
- for( tfl=tfl_root; tfl != NULL; tfl=tfl->next )
- {// check suspicious cases
- if( func == tfl->func )
- ShowWarning("add_timer_func_list: duplicating function %p(%s) as %s.\n",tfl->func,tfl->name,name);
- else if( strcmp(name,tfl->name) == 0 )
- ShowWarning("add_timer_func_list: function %p has the same name as %p(%s)\n",func,tfl->func,tfl->name);
- }
- CREATE(tfl,struct timer_func_list,1);
- tfl->next = tfl_root;
- tfl->func = func;
- tfl->name = aStrdup(name);
- tfl_root = tfl;
- }
- return 0;
+ struct timer_func_list *tfl;
+
+ if (name) {
+ for (tfl=tfl_root; tfl != NULL; tfl=tfl->next) {
+ // check suspicious cases
+ if (func == tfl->func)
+ ShowWarning("add_timer_func_list: duplicating function %p(%s) as %s.\n",tfl->func,tfl->name,name);
+ else if (strcmp(name,tfl->name) == 0)
+ ShowWarning("add_timer_func_list: function %p has the same name as %p(%s)\n",func,tfl->func,tfl->name);
+ }
+ CREATE(tfl,struct timer_func_list,1);
+ tfl->next = tfl_root;
+ tfl->func = func;
+ tfl->name = aStrdup(name);
+ tfl_root = tfl;
+ }
+ return 0;
}
/// Returns the name of the timer function.
-char* search_timer_func_list(TimerFunc func)
+char *search_timer_func_list(TimerFunc func)
{
- struct timer_func_list* tfl;
+ struct timer_func_list *tfl;
- for( tfl=tfl_root; tfl != NULL; tfl=tfl->next )
- if (func == tfl->func)
- return tfl->name;
+ for (tfl=tfl_root; tfl != NULL; tfl=tfl->next)
+ if (func == tfl->func)
+ return tfl->name;
- return "unknown timer function";
+ return "unknown timer function";
}
/*----------------------------
- * Get tick time
+ * Get tick time
*----------------------------*/
#if defined(ENABLE_RDTSC)
static uint64 RDTSC_BEGINTICK = 0, RDTSC_CLOCK = 0;
-static __inline uint64 _rdtsc(){
- register union{
- uint64 qw;
- uint32 dw[2];
- } t;
+static __inline uint64 _rdtsc()
+{
+ register union {
+ uint64 qw;
+ uint32 dw[2];
+ } t;
+
+ asm volatile("rdtsc":"=a"(t.dw[0]), "=d"(t.dw[1]));
- asm volatile("rdtsc":"=a"(t.dw[0]), "=d"(t.dw[1]) );
-
- return t.qw;
+ return t.qw;
}
-static void rdtsc_calibrate(){
- uint64 t1, t2;
- int32 i;
-
- ShowStatus("Calibrating Timer Source, please wait... ");
-
- RDTSC_CLOCK = 0;
-
- for(i = 0; i < 5; i++){
- t1 = _rdtsc();
- usleep(1000000); //1000 MS
- t2 = _rdtsc();
- RDTSC_CLOCK += (t2 - t1) / 1000;
- }
- RDTSC_CLOCK /= 5;
-
- RDTSC_BEGINTICK = _rdtsc();
-
- ShowMessage(" done. (Frequency: %u Mhz)\n", (uint32)(RDTSC_CLOCK/1000) );
+static void rdtsc_calibrate()
+{
+ uint64 t1, t2;
+ int32 i;
+
+ ShowStatus("Calibrating Timer Source, please wait... ");
+
+ RDTSC_CLOCK = 0;
+
+ for (i = 0; i < 5; i++) {
+ t1 = _rdtsc();
+ usleep(1000000); //1000 MS
+ t2 = _rdtsc();
+ RDTSC_CLOCK += (t2 - t1) / 1000;
+ }
+ RDTSC_CLOCK /= 5;
+
+ RDTSC_BEGINTICK = _rdtsc();
+
+ ShowMessage(" done. (Frequency: %u Mhz)\n", (uint32)(RDTSC_CLOCK/1000));
}
#endif
@@ -140,19 +142,19 @@ static void rdtsc_calibrate(){
static unsigned int tick(void)
{
#if defined(WIN32)
- return GetTickCount();
+ return GetTickCount();
#elif defined(ENABLE_RDTSC)
- //
- return (unsigned int)((_rdtsc() - RDTSC_BEGINTICK) / RDTSC_CLOCK);
- //
+ //
+ return (unsigned int)((_rdtsc() - RDTSC_BEGINTICK) / RDTSC_CLOCK);
+ //
#elif defined(HAVE_MONOTONIC_CLOCK)
- struct timespec tval;
- clock_gettime(CLOCK_MONOTONIC, &tval);
- return tval.tv_sec * 1000 + tval.tv_nsec / 1000000;
+ struct timespec tval;
+ clock_gettime(CLOCK_MONOTONIC, &tval);
+ return tval.tv_sec * 1000 + tval.tv_nsec / 1000000;
#else
- struct timeval tval;
- gettimeofday(&tval, NULL);
- return tval.tv_sec * 1000 + tval.tv_usec / 1000;
+ struct timeval tval;
+ gettimeofday(&tval, NULL);
+ return tval.tv_sec * 1000 + tval.tv_usec / 1000;
#endif
}
@@ -165,14 +167,14 @@ static int gettick_count = 1;
unsigned int gettick_nocache(void)
{
- gettick_count = TICK_CACHE;
- gettick_cache = tick();
- return gettick_cache;
+ gettick_count = TICK_CACHE;
+ gettick_cache = tick();
+ return gettick_cache;
}
unsigned int gettick(void)
{
- return ( --gettick_count == 0 ) ? gettick_nocache() : gettick_cache;
+ return (--gettick_count == 0) ? gettick_nocache() : gettick_cache;
}
//////////////////////////////
#else
@@ -180,110 +182,108 @@ unsigned int gettick(void)
// tick doesn't get cached
unsigned int gettick_nocache(void)
{
- return tick();
+ return tick();
}
unsigned int gettick(void)
{
- return tick();
+ return tick();
}
//////////////////////////////////////////////////////////////////////////
#endif
//////////////////////////////////////////////////////////////////////////
/*======================================
- * CORE : Timer Heap
+ * CORE : Timer Heap
*--------------------------------------*/
/// Adds a timer to the timer_heap
static void push_timer_heap(int tid)
{
- BHEAP_ENSURE(timer_heap, 1, 256);
- BHEAP_PUSH(timer_heap, tid, DIFFTICK_MINTOPCMP);
+ BHEAP_ENSURE(timer_heap, 1, 256);
+ BHEAP_PUSH(timer_heap, tid, DIFFTICK_MINTOPCMP);
}
/*==========================
- * Timer Management
+ * Timer Management
*--------------------------*/
/// Returns a free timer id.
static int acquire_timer(void)
{
- int tid;
-
- // select a free timer
- if (free_timer_list_pos) {
- do {
- tid = free_timer_list[--free_timer_list_pos];
- } while(tid >= timer_data_num && free_timer_list_pos > 0);
- } else
- tid = timer_data_num;
-
- // check available space
- if( tid >= timer_data_num )
- for (tid = timer_data_num; tid < timer_data_max && timer_data[tid].type; tid++);
- if (tid >= timer_data_num && tid >= timer_data_max)
- {// expand timer array
- timer_data_max += 256;
- if( timer_data )
- RECREATE(timer_data, struct TimerData, timer_data_max);
- else
- CREATE(timer_data, struct TimerData, timer_data_max);
- memset(timer_data + (timer_data_max - 256), 0, sizeof(struct TimerData)*256);
- }
-
- if( tid >= timer_data_num )
- timer_data_num = tid + 1;
-
- return tid;
+ int tid;
+
+ // select a free timer
+ if (free_timer_list_pos) {
+ do {
+ tid = free_timer_list[--free_timer_list_pos];
+ } while (tid >= timer_data_num && free_timer_list_pos > 0);
+ } else
+ tid = timer_data_num;
+
+ // check available space
+ if (tid >= timer_data_num)
+ for (tid = timer_data_num; tid < timer_data_max && timer_data[tid].type; tid++);
+ if (tid >= timer_data_num && tid >= timer_data_max) {
+ // expand timer array
+ timer_data_max += 256;
+ if (timer_data)
+ RECREATE(timer_data, struct TimerData, timer_data_max);
+ else
+ CREATE(timer_data, struct TimerData, timer_data_max);
+ memset(timer_data + (timer_data_max - 256), 0, sizeof(struct TimerData)*256);
+ }
+
+ if (tid >= timer_data_num)
+ timer_data_num = tid + 1;
+
+ return tid;
}
/// Starts a new timer that is deleted once it expires (single-use).
/// Returns the timer's id.
int add_timer(unsigned int tick, TimerFunc func, int id, intptr_t data)
{
- int tid;
-
- tid = acquire_timer();
- timer_data[tid].tick = tick;
- timer_data[tid].func = func;
- timer_data[tid].id = id;
- timer_data[tid].data = data;
- timer_data[tid].type = TIMER_ONCE_AUTODEL;
- timer_data[tid].interval = 1000;
- push_timer_heap(tid);
-
- return tid;
+ int tid;
+
+ tid = acquire_timer();
+ timer_data[tid].tick = tick;
+ timer_data[tid].func = func;
+ timer_data[tid].id = id;
+ timer_data[tid].data = data;
+ timer_data[tid].type = TIMER_ONCE_AUTODEL;
+ timer_data[tid].interval = 1000;
+ push_timer_heap(tid);
+
+ return tid;
}
/// Starts a new timer that automatically restarts itself (infinite loop until manually removed).
/// Returns the timer's id, or INVALID_TIMER if it fails.
int add_timer_interval(unsigned int tick, TimerFunc func, int id, intptr_t data, int interval)
{
- int tid;
-
- if( interval < 1 )
- {
- ShowError("add_timer_interval: invalid interval (tick=%u %p[%s] id=%d data=%d diff_tick=%d)\n", tick, func, search_timer_func_list(func), id, data, DIFF_TICK(tick, gettick()));
- return INVALID_TIMER;
- }
-
- tid = acquire_timer();
- timer_data[tid].tick = tick;
- timer_data[tid].func = func;
- timer_data[tid].id = id;
- timer_data[tid].data = data;
- timer_data[tid].type = TIMER_INTERVAL;
- timer_data[tid].interval = interval;
- push_timer_heap(tid);
-
- return tid;
+ int tid;
+
+ if (interval < 1) {
+ ShowError("add_timer_interval: invalid interval (tick=%u %p[%s] id=%d data=%d diff_tick=%d)\n", tick, func, search_timer_func_list(func), id, data, DIFF_TICK(tick, gettick()));
+ return INVALID_TIMER;
+ }
+
+ tid = acquire_timer();
+ timer_data[tid].tick = tick;
+ timer_data[tid].func = func;
+ timer_data[tid].id = id;
+ timer_data[tid].data = data;
+ timer_data[tid].type = TIMER_INTERVAL;
+ timer_data[tid].interval = interval;
+ push_timer_heap(tid);
+
+ return tid;
}
/// Retrieves internal timer data
-const struct TimerData* get_timer(int tid)
-{
- return ( tid >= 0 && tid < timer_data_num ) ? &timer_data[tid] : NULL;
+const struct TimerData *get_timer(int tid) {
+ return (tid >= 0 && tid < timer_data_num) ? &timer_data[tid] : NULL;
}
/// Marks a timer specified by 'id' for immediate deletion once it expires.
@@ -291,142 +291,135 @@ const struct TimerData* get_timer(int tid)
/// Returns 0 on success, < 0 on failure.
int delete_timer(int tid, TimerFunc func)
{
- if( tid < 0 || tid >= timer_data_num )
- {
- ShowError("delete_timer error : no such timer %d (%p(%s))\n", tid, func, search_timer_func_list(func));
- return -1;
- }
- if( timer_data[tid].func != func )
- {
- ShowError("delete_timer error : function mismatch %p(%s) != %p(%s)\n", timer_data[tid].func, search_timer_func_list(timer_data[tid].func), func, search_timer_func_list(func));
- return -2;
- }
-
- timer_data[tid].func = NULL;
- timer_data[tid].type = TIMER_ONCE_AUTODEL;
-
- return 0;
+ if (tid < 0 || tid >= timer_data_num) {
+ ShowError("delete_timer error : no such timer %d (%p(%s))\n", tid, func, search_timer_func_list(func));
+ return -1;
+ }
+ if (timer_data[tid].func != func) {
+ ShowError("delete_timer error : function mismatch %p(%s) != %p(%s)\n", timer_data[tid].func, search_timer_func_list(timer_data[tid].func), func, search_timer_func_list(func));
+ return -2;
+ }
+
+ timer_data[tid].func = NULL;
+ timer_data[tid].type = TIMER_ONCE_AUTODEL;
+
+ return 0;
}
/// Adjusts a timer's expiration time.
/// Returns the new tick value, or -1 if it fails.
int addtick_timer(int tid, unsigned int tick)
{
- return settick_timer(tid, timer_data[tid].tick+tick);
+ return settick_timer(tid, timer_data[tid].tick+tick);
}
/// Modifies a timer's expiration time (an alternative to deleting a timer and starting a new one).
/// Returns the new tick value, or -1 if it fails.
int settick_timer(int tid, unsigned int tick)
{
- size_t i;
-
- // search timer position
- ARR_FIND(0, BHEAP_LENGTH(timer_heap), i, BHEAP_DATA(timer_heap)[i] == tid);
- if( i == BHEAP_LENGTH(timer_heap) )
- {
- ShowError("settick_timer: no such timer %d (%p(%s))\n", tid, timer_data[tid].func, search_timer_func_list(timer_data[tid].func));
- return -1;
- }
-
- if( (int)tick == -1 )
- tick = 0;// add 1ms to avoid the error value -1
-
- if( timer_data[tid].tick == tick )
- return (int)tick;// nothing to do, already in propper position
-
- // pop and push adjusted timer
- BHEAP_POPINDEX(timer_heap, i, DIFFTICK_MINTOPCMP);
- timer_data[tid].tick = tick;
- BHEAP_PUSH(timer_heap, tid, DIFFTICK_MINTOPCMP);
- return (int)tick;
+ size_t i;
+
+ // search timer position
+ ARR_FIND(0, BHEAP_LENGTH(timer_heap), i, BHEAP_DATA(timer_heap)[i] == tid);
+ if (i == BHEAP_LENGTH(timer_heap)) {
+ ShowError("settick_timer: no such timer %d (%p(%s))\n", tid, timer_data[tid].func, search_timer_func_list(timer_data[tid].func));
+ return -1;
+ }
+
+ if ((int)tick == -1)
+ tick = 0;// add 1ms to avoid the error value -1
+
+ if (timer_data[tid].tick == tick)
+ return (int)tick;// nothing to do, already in propper position
+
+ // pop and push adjusted timer
+ BHEAP_POPINDEX(timer_heap, i, DIFFTICK_MINTOPCMP);
+ timer_data[tid].tick = tick;
+ BHEAP_PUSH(timer_heap, tid, DIFFTICK_MINTOPCMP);
+ return (int)tick;
}
/// Executes all expired timers.
/// Returns the value of the smallest non-expired timer (or 1 second if there aren't any).
int do_timer(unsigned int tick)
{
- int diff = TIMER_MAX_INTERVAL; // return value
-
- // process all timers one by one
- while( BHEAP_LENGTH(timer_heap) )
- {
- int tid = BHEAP_PEEK(timer_heap);// top element in heap (smallest tick)
-
- diff = DIFF_TICK(timer_data[tid].tick, tick);
- if( diff > 0 )
- break; // no more expired timers to process
-
- // remove timer
- BHEAP_POP(timer_heap, DIFFTICK_MINTOPCMP);
- timer_data[tid].type |= TIMER_REMOVE_HEAP;
-
- if( timer_data[tid].func )
- {
- if( diff < -1000 )
- // timer was delayed for more than 1 second, use current tick instead
- timer_data[tid].func(tid, tick, timer_data[tid].id, timer_data[tid].data);
- else
- timer_data[tid].func(tid, timer_data[tid].tick, timer_data[tid].id, timer_data[tid].data);
- }
-
- // in the case the function didn't change anything...
- if( timer_data[tid].type & TIMER_REMOVE_HEAP )
- {
- timer_data[tid].type &= ~TIMER_REMOVE_HEAP;
-
- switch( timer_data[tid].type )
- {
- default:
- case TIMER_ONCE_AUTODEL:
- timer_data[tid].type = 0;
- if (free_timer_list_pos >= free_timer_list_max) {
- free_timer_list_max += 256;
- RECREATE(free_timer_list,int,free_timer_list_max);
- memset(free_timer_list + (free_timer_list_max - 256), 0, 256 * sizeof(int));
- }
- free_timer_list[free_timer_list_pos++] = tid;
- break;
- case TIMER_INTERVAL:
- if( DIFF_TICK(timer_data[tid].tick, tick) < -1000 )
- timer_data[tid].tick = tick + timer_data[tid].interval;
- else
- timer_data[tid].tick += timer_data[tid].interval;
- push_timer_heap(tid);
- break;
- }
- }
- }
-
- return cap_value(diff, TIMER_MIN_INTERVAL, TIMER_MAX_INTERVAL);
+ int diff = TIMER_MAX_INTERVAL; // return value
+
+ // process all timers one by one
+ while (BHEAP_LENGTH(timer_heap)) {
+ int tid = BHEAP_PEEK(timer_heap);// top element in heap (smallest tick)
+
+ diff = DIFF_TICK(timer_data[tid].tick, tick);
+ if (diff > 0)
+ break; // no more expired timers to process
+
+ // remove timer
+ BHEAP_POP(timer_heap, DIFFTICK_MINTOPCMP);
+ timer_data[tid].type |= TIMER_REMOVE_HEAP;
+
+ if (timer_data[tid].func) {
+ if (diff < -1000)
+ // timer was delayed for more than 1 second, use current tick instead
+ timer_data[tid].func(tid, tick, timer_data[tid].id, timer_data[tid].data);
+ else
+ timer_data[tid].func(tid, timer_data[tid].tick, timer_data[tid].id, timer_data[tid].data);
+ }
+
+ // in the case the function didn't change anything...
+ if (timer_data[tid].type & TIMER_REMOVE_HEAP) {
+ timer_data[tid].type &= ~TIMER_REMOVE_HEAP;
+
+ switch (timer_data[tid].type) {
+ default:
+ case TIMER_ONCE_AUTODEL:
+ timer_data[tid].type = 0;
+ if (free_timer_list_pos >= free_timer_list_max) {
+ free_timer_list_max += 256;
+ RECREATE(free_timer_list,int,free_timer_list_max);
+ memset(free_timer_list + (free_timer_list_max - 256), 0, 256 * sizeof(int));
+ }
+ free_timer_list[free_timer_list_pos++] = tid;
+ break;
+ case TIMER_INTERVAL:
+ if (DIFF_TICK(timer_data[tid].tick, tick) < -1000)
+ timer_data[tid].tick = tick + timer_data[tid].interval;
+ else
+ timer_data[tid].tick += timer_data[tid].interval;
+ push_timer_heap(tid);
+ break;
+ }
+ }
+ }
+
+ return cap_value(diff, TIMER_MIN_INTERVAL, TIMER_MAX_INTERVAL);
}
unsigned long get_uptime(void)
{
- return (unsigned long)difftime(time(NULL), start_time);
+ return (unsigned long)difftime(time(NULL), start_time);
}
void timer_init(void)
{
#if defined(ENABLE_RDTSC)
- rdtsc_calibrate();
+ rdtsc_calibrate();
#endif
- time(&start_time);
+ time(&start_time);
}
void timer_final(void)
{
- struct timer_func_list *tfl;
- struct timer_func_list *next;
-
- for( tfl=tfl_root; tfl != NULL; tfl = next ) {
- next = tfl->next; // copy next pointer
- aFree(tfl->name); // free structures
- aFree(tfl);
- }
-
- if (timer_data) aFree(timer_data);
- BHEAP_CLEAR(timer_heap);
- if (free_timer_list) aFree(free_timer_list);
+ struct timer_func_list *tfl;
+ struct timer_func_list *next;
+
+ for (tfl=tfl_root; tfl != NULL; tfl = next) {
+ next = tfl->next; // copy next pointer
+ aFree(tfl->name); // free structures
+ aFree(tfl);
+ }
+
+ if (timer_data) aFree(timer_data);
+ BHEAP_CLEAR(timer_heap);
+ if (free_timer_list) aFree(free_timer_list);
}
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