Merge pull request #5 from kdurant/master

add demo in linux

.gitignore

@@ -0,0 +1,4 @@
+*.o
+*.out 
+test
+tmp

README.md

@@ -9,7 +9,7 @@ MultiTimer 是一个软件定时器扩展模块，可无限扩展你所需的定
 ```
 struct Timer timer1;
 ```
-2.初始化定时器对象，注册定时器回调处理函数，设置定时时间（ms），循环定时触发时间
+2.初始化定时器对象，注册定时器回调处理函数，设置延迟启动时间（ms），循环定时触发时间
 
 ```
 timer_init(struct Timer* handle, void(*timeout_cb)(), uint32_t timeout, uint32_t repeat);

examples/test_linux.c

@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <signal.h>
+#include <sys/time.h>
+#include "../multi_timer.h"
+
+void signalHandler(int signo)
+{
+    switch(signo)
+    {
+        case SIGALRM:
+            timer_ticks();
+            //printf("Caught the SIGALRM signal!\n");
+            break;
+    }
+}
+
+struct Timer timer1;
+struct Timer timer2;
+
+void timer1_callback()
+{
+    printf("timer1 timeout!\r\n");
+}
+
+void timer2_callback()
+{
+    printf("timer2 timeout!\r\n");
+}
+
+int main(void)
+{
+    signal(SIGALRM, signalHandler);
+
+    struct itimerval new_value, old_value;
+    new_value.it_value.tv_sec     = 1;
+    new_value.it_value.tv_usec    = 0;
+    new_value.it_interval.tv_sec  = 0;
+    new_value.it_interval.tv_usec = 1000;
+    setitimer(ITIMER_REAL, &new_value, &old_value);
+
+    timer_init(&timer1, timer1_callback, 4000, 1000);  // start timer after 4s
+    timer_start(&timer1);
+
+    timer_init(&timer2, timer2_callback, 0, 2000);
+    timer_start(&timer2);
+
+    while(1)
+    {
+        timer_loop();
+    }
+    return 0;
+}

makefile

@@ -0,0 +1,31 @@
+
+CC = gcc
+
+CFLGAS += -std=c99
+CFLAGS += -D TEST
+CFLAGS += -g
+
+OBJ_PATH = .
+BIN_PATH = .
+SRC_PATH = .
+
+IDIR = .
+INC += -I$(IDIR)
+
+TARGET = $(BIN_PATH)/test 
+
+C_SRCS += ./examples/test_linux.c
+C_SRCS += ./multi_timer.c
+OBJ := $(patsubst %.c,%.o,$(filter %.c,$(C_SRCS)))
+
+
+$(TARGET) : $(OBJ_PATH)/$(OBJ)
+	$(CC) $(INC) $(CFLAGS)  $(OBJ)  -o $(TARGET)
+
+$(OBJ): %.o : %.c
+	$(CC) $(INC) $(CFLAGS) -c $< -o $@
+
+.PHONY : clean
+clean:
+	@-rm *.exe
+	@-rm *.o

multi_timer.c

@@ -18,12 +18,12 @@ static uint32_t _timer_ticks = 0;
   * @param  repeat: repeat interval time.
   * @retval None
   */
-void timer_init(struct Timer* handle, void(*timeout_cb)(), uint32_t timeout, uint32_t repeat)
+void timer_init(struct Timer* handle, void (*timeout_cb)(), uint32_t timeout, uint32_t repeat)
 {
-	// memset(handle, sizeof(struct Timer), 0);
-	handle->timeout_cb = timeout_cb;
-	handle->timeout = _timer_ticks + timeout;
-	handle->repeat = repeat;
+    // memset(handle, sizeof(struct Timer), 0);
+    handle->timeout_cb = timeout_cb;
+    handle->timeout    = _timer_ticks + timeout;
+    handle->repeat     = repeat;
 }
 
 /**
@@ -33,14 +33,16 @@ void timer_init(struct Timer* handle, void(*timeout_cb)(), uint32_t timeout, uin
   */
 int timer_start(struct Timer* handle)
 {
-	struct Timer* target = head_handle;
-	while(target) {
-		if(target == handle) return -1;	//already exist.
-		target = target->next;
-	}
-	handle->next = head_handle;
-	head_handle = handle;
-	return 0;
+    struct Timer* target = head_handle;
+    while(target)
+    {
+        if(target == handle)
+            return -1;  //already exist.
+        target = target->next;
+    }
+    handle->next = head_handle;
+    head_handle  = handle;
+    return 0;
 }
 
 /**
@@ -50,15 +52,18 @@ int timer_start(struct Timer* handle)
   */
 void timer_stop(struct Timer* handle)
 {
-	struct Timer** curr;
-	for(curr = &head_handle; *curr; ) {
-		struct Timer* entry = *curr;
-		if (entry == handle) {
-			*curr = entry->next;
-//			free(entry);
-		} else
-			curr = &entry->next;
-	}
+    struct Timer** curr;
+    for(curr = &head_handle; *curr;)
+    {
+        struct Timer* entry = *curr;
+        if(entry == handle)
+        {
+            *curr = entry->next;
+            //			free(entry);
+        }
+        else
+            curr = &entry->next;
+    }
 }
 
 /**
@@ -68,17 +73,22 @@ void timer_stop(struct Timer* handle)
   */
 void timer_loop()
 {
-	struct Timer* target;
-	for(target=head_handle; target; target=target->next) {
-		if(_timer_ticks >= target->timeout) {
-			if(target->repeat == 0) {
-				timer_stop(target);
-			} else {
-				target->timeout = _timer_ticks + target->repeat;
-			}
-			target->timeout_cb();
-		}
-	}
+    struct Timer* target;
+    for(target = head_handle; target; target = target->next)
+    {
+        if(_timer_ticks >= target->timeout)
+        {
+            if(target->repeat == 0)
+            {
+                timer_stop(target);
+            }
+            else
+            {
+                target->timeout = _timer_ticks + target->repeat;
+            }
+            target->timeout_cb();
+        }
+    }
 }
 
 /**
@@ -88,6 +98,6 @@ void timer_loop()
   */
 void timer_ticks()
 {
-	_timer_ticks++;
+    _timer_ticks++;
 }