summaryrefslogtreecommitdiff
path: root/src/common/timer.c
blob: 7d03d4e5ed667d9033c56c929568a9c72bd76583 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
// $Id: timer.c,v 1.1.1.1 2004/09/10 17:44:49 MagicalTux Exp $
// original : core.c 2003/02/26 18:03:12 Rev 1.7

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>

#ifdef _WIN32
#include <winsock.h>
#else
#include <sys/socket.h>
#include <sys/time.h>
#endif

#include "timer.h"
#include "utils.h"

#ifdef MEMWATCH
#include "memwatch.h"
#endif

static struct TimerData* timer_data;
static int timer_data_max,timer_data_num;
static int* free_timer_list;
static int free_timer_list_max, free_timer_list_pos;

static int timer_heap_max;
static int* timer_heap = NULL;

// for debug
struct timer_func_list {
	int (*func)(int,unsigned int,int,int);
	struct timer_func_list* next;
	char* name;
};
static struct timer_func_list* tfl_root;

#if defined(_WIN32)
void gettimeofday(struct timeval *t, struct timezone *dummy)
{
  DWORD millisec = GetTickCount();

  t->tv_sec = (int) (millisec / 1000);
  t->tv_usec = (millisec % 1000) * 1000;
}

#endif


//
int add_timer_func_list(int (*func)(int,unsigned int,int,int),char* name)
{
	struct timer_func_list* tfl;

	CREATE(tfl, struct timer_func_list, 1);
	CREATE(tfl->name, char, strlen(name) + 1);

	tfl->next = tfl_root;
	tfl->func = func;
	strcpy(tfl->name,name);
	tfl_root = tfl;

	return 0;
}

char* search_timer_func_list(int (*func)(int,unsigned int,int,int))
{
	struct timer_func_list* tfl;
	for(tfl = tfl_root;tfl;tfl = tfl->next) {
		if (func == tfl->func)
			return tfl->name;
	}
	return "???";
}

/*----------------------------
 * 	Get tick time
 *----------------------------*/
static unsigned int gettick_cache;
static int gettick_count;
unsigned int gettick_nocache(void)
{
	struct timeval tval;
	gettimeofday(&tval,NULL);
	gettick_count = 256;
	return gettick_cache = tval.tv_sec * 1000 + tval.tv_usec/1000;
}

unsigned int gettick(void)
{
	gettick_count--;
	if (gettick_count<0)
		return gettick_nocache();
	return gettick_cache;
}

/*======================================
 * 	CORE : Timer Heap
 *--------------------------------------
 */
static void push_timer_heap(int index)
{
	int i, h;

	if (timer_heap == NULL || timer_heap[0] + 1 >= timer_heap_max) {
		int first = timer_heap == NULL;

		timer_heap_max += 256;
		RECREATE(timer_heap, int, timer_heap_max);
		memset(timer_heap + (timer_heap_max - 256), 0, sizeof(int) * 256);
		if (first)
			timer_heap[0] = 0;
	}

	timer_heap[0]++;

	for (h = timer_heap[0]-1, i = (h - 1) / 2;
		 h > 0 && DIFF_TICK(timer_data[index].tick,
			timer_data[timer_heap[i + 1]].tick) < 0;
		 i = (h - 1) / 2) {
		timer_heap[h + 1] = timer_heap[i + 1];
		h = i;
	}
	timer_heap[h + 1] = index;
}

static int top_timer_heap()
{
	if (timer_heap == NULL || timer_heap[0] <= 0)
		return -1;

	return timer_heap[1];
}

static int pop_timer_heap()
{
	int i,h,k;
	int ret,last;

	if (timer_heap == NULL || timer_heap[0] <= 0)
		return -1;
	ret = timer_heap[1];
	last = timer_heap[timer_heap[0]];
	timer_heap[0]--;

	for(h = 0,k = 2;k<timer_heap[0];k = k * 2 + 2) {
		if (DIFF_TICK(timer_data[timer_heap[k + 1]].tick , timer_data[timer_heap[k]].tick)>0)
			k--;
		timer_heap[h + 1] = timer_heap[k + 1], h = k;
	}
	if (k == timer_heap[0])
		timer_heap[h + 1] = timer_heap[k], h = k-1;

	for(i = (h-1)/2;
		h>0 && DIFF_TICK(timer_data[timer_heap[i + 1]].tick , timer_data[last].tick)>0;
		i = (h-1)/2) {
		timer_heap[h + 1] = timer_heap[i + 1],h = i;
	}
	timer_heap[h + 1] = last;

	return ret;
}

int add_timer(unsigned int tick,int (*func)(int,unsigned int,int,int),int id,int data)
{
	struct TimerData* td;
	int i;

	if (free_timer_list_pos) {
		do {
			i = free_timer_list[--free_timer_list_pos];
		} while(i >= timer_data_num && free_timer_list_pos > 0);
	} else
		i = timer_data_num;
	if (i >= timer_data_num)
		for (i = timer_data_num;i<timer_data_max && timer_data[i].type; i++);
	if (i >= timer_data_num && i >= timer_data_max) {
		int j;
		if (timer_data_max == 0) {
			timer_data_max = 256;
			CREATE(timer_data, struct TimerData, timer_data_max);
		} else {
			timer_data_max += 256;
			RECREATE(timer_data, struct TimerData, timer_data_max);
			if (timer_data == NULL) {
				printf("out of memory : add_timer timer_data\n");
				exit(1);
			}
			memset(timer_data + (timer_data_max - 256), 0,
				sizeof(struct TimerData) * 256);
		}
		for(j = timer_data_max-256;j<timer_data_max; j++)
			timer_data[j].type = 0;
	}
	td = &timer_data[i];
	td->tick = tick;
	td->func = func;
	td->id = id;
	td->data = data;
	td->type = TIMER_ONCE_AUTODEL;
	td->interval = 1000;
	push_timer_heap(i);
	if (i >= timer_data_num)
		timer_data_num = i + 1;
	return i;
}

int add_timer_interval(unsigned int tick,int (*func)(int,unsigned int,int,int),int id,int data,int interval)
{
	int tid;
	tid = add_timer(tick,func,id,data);
	timer_data[tid].type = TIMER_INTERVAL;
	timer_data[tid].interval = interval;
	return tid;
}

int delete_timer(int id,int (*func)(int,unsigned int,int,int))
{
	if (id <= 0 || id >= timer_data_num) {
		printf("delete_timer error : no such timer %d\n", id);
		return -1;
	}
	if (timer_data[id].func != func) {
		printf("delete_timer error : function dismatch %08x(%s) != %08x(%s)\n",
			 (int)timer_data[id].func,
				search_timer_func_list(timer_data[id].func),
			 (int)func,
				search_timer_func_list(func));
		return -2;
	}
	// ���̂���������ɂ܂�����
	timer_data[id].func = NULL;
	timer_data[id].type = TIMER_ONCE_AUTODEL;
	timer_data[id].tick -= 60 * 60 * 1000;
	return 0;
}

int addtick_timer(int tid,unsigned int tick)
{
	return timer_data[tid].tick += tick;
}
struct TimerData* get_timer(int tid)
{
	return &timer_data[tid];
}


int do_timer(unsigned int tick)
{
	int i,nextmin = 1000;

#if 0
	static int disp_tick = 0;
	if (DIFF_TICK(disp_tick,tick)<-5000 || DIFF_TICK(disp_tick,tick)>5000) {
		printf("timer %d(%d + %d)\n",timer_data_num,timer_heap[0],free_timer_list_pos);
		disp_tick = tick;
	}
#endif

	while((i = top_timer_heap()) >= 0) {
		if (DIFF_TICK(timer_data[i].tick , tick)>0) {
			nextmin = DIFF_TICK(timer_data[i].tick , tick);
			break;
		}
		pop_timer_heap();
		timer_data[i].type |= TIMER_REMOVE_HEAP;
		if (timer_data[i].func) {
			if (DIFF_TICK(timer_data[i].tick , tick) < -1000) {
				// 1�b�ȏ�̑啝�Ȓx�����������Ă���̂ŁA
				// timer�����^�C�~���O�����ݒl�Ƃ��鎖��
				// �Ăяo�����^�C�~���O(������tick)���΂ŏ������Ă�
				// timer�֐��̎��񏈗��^�C�~���O��x�点��
				timer_data[i].func(i,tick,timer_data[i].id,timer_data[i].data);
			} else {
				timer_data[i].func(i,timer_data[i].tick,timer_data[i].id,timer_data[i].data);
			}
		}
		if (timer_data[i].type&TIMER_REMOVE_HEAP) {
			switch(timer_data[i].type & ~TIMER_REMOVE_HEAP) {
			case TIMER_ONCE_AUTODEL:
				timer_data[i].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(free_timer_list[0]));
				}
				free_timer_list[free_timer_list_pos++] = i;
				break;
			case TIMER_INTERVAL:
				if (DIFF_TICK(timer_data[i].tick , tick) < -1000) {
					timer_data[i].tick = tick + timer_data[i].interval;
				} else {
					timer_data[i].tick += timer_data[i].interval;
				}
				timer_data[i].type &= ~TIMER_REMOVE_HEAP;
				push_timer_heap(i);
				break;
			}
		}
	}

	if (nextmin<10)
		nextmin = 10;
	return nextmin;
}

void timer_final() 
{
    free(timer_data);
}