From f7b14218800ad7ed6c47c67d4d043a3340d63116 Mon Sep 17 00:00:00 2001 From: Grissiom Date: Sat, 21 Dec 2013 12:51:52 +0800 Subject: TC: expand TABs --- examples/kernel/semaphore_buffer_worker.c | 378 +++++++++++++++--------------- 1 file changed, 189 insertions(+), 189 deletions(-) (limited to 'examples/kernel/semaphore_buffer_worker.c') diff --git a/examples/kernel/semaphore_buffer_worker.c b/examples/kernel/semaphore_buffer_worker.c index 6e5920dd6f..de46475769 100644 --- a/examples/kernel/semaphore_buffer_worker.c +++ b/examples/kernel/semaphore_buffer_worker.c @@ -12,9 +12,9 @@ /* 一个环形buffer的实现 */ struct rb { - rt_uint16_t read_index, write_index; - rt_uint8_t *buffer_ptr; - rt_uint16_t buffer_size; + rt_uint16_t read_index, write_index; + rt_uint8_t *buffer_ptr; + rt_uint16_t buffer_size; }; /* 指向信号量控制块的指针 */ @@ -23,236 +23,236 @@ static rt_sem_t sem = RT_NULL; static rt_thread_t tid = RT_NULL, worker = RT_NULL; /* 环形buffer的内存块（用数组体现出来） */ -#define BUFFER_SIZE 256 -#define BUFFER_ITEM 32 +#define BUFFER_SIZE 256 +#define BUFFER_ITEM 32 static rt_uint8_t working_buffer[BUFFER_SIZE]; struct rb working_rb; /* 初始化环形buffer，size指的是buffer的大小。注：这里并没对数据地址对齐做处理 */ static void rb_init(struct rb* rb, rt_uint8_t *pool, rt_uint16_t size) { - RT_ASSERT(rb != RT_NULL); + RT_ASSERT(rb != RT_NULL); - /* 对读写指针清零*/ - rb->read_index = rb->write_index = 0; + /* 对读写指针清零*/ + rb->read_index = rb->write_index = 0; - /* 设置环形buffer的内存数据块 */ - rb->buffer_ptr = pool; - rb->buffer_size = size; + /* 设置环形buffer的内存数据块 */ + rb->buffer_ptr = pool; + rb->buffer_size = size; } /* 向环形buffer中写入数据 */ static rt_bool_t rb_put(struct rb* rb, const rt_uint8_t *ptr, rt_uint16_t length) { - rt_size_t size; - - /* 判断是否有足够的剩余空间 */ - if (rb->read_index > rb->write_index) - size = rb->read_index - rb->write_index; - else - size = rb->buffer_size - rb->write_index + rb->read_index; - - /* 没有多余的空间 */ - if (size < length) return RT_FALSE; - - if (rb->read_index > rb->write_index) - { - /* read_index - write_index 即为总的空余空间 */ - memcpy(&rb->buffer_ptr[rb->write_index], ptr, length); - rb->write_index += length; - } - else - { - if (rb->buffer_size - rb->write_index > length) - { - /* write_index 后面剩余的空间有足够的长度 */ - memcpy(&rb->buffer_ptr[rb->write_index], ptr, length); - rb->write_index += length; - } - else - { - /* - * write_index 后面剩余的空间不存在足够的长度，需要把部分数据复制到 - * 前面的剩余空间中 - */ - memcpy(&rb->buffer_ptr[rb->write_index], ptr, - rb->buffer_size - rb->write_index); - memcpy(&rb->buffer_ptr[0], &ptr[rb->buffer_size - rb->write_index], - length - (rb->buffer_size - rb->write_index)); - rb->write_index = length - (rb->buffer_size - rb->write_index); - } - } - - return RT_TRUE; + rt_size_t size; + + /* 判断是否有足够的剩余空间 */ + if (rb->read_index > rb->write_index) + size = rb->read_index - rb->write_index; + else + size = rb->buffer_size - rb->write_index + rb->read_index; + + /* 没有多余的空间 */ + if (size < length) return RT_FALSE; + + if (rb->read_index > rb->write_index) + { + /* read_index - write_index 即为总的空余空间 */ + memcpy(&rb->buffer_ptr[rb->write_index], ptr, length); + rb->write_index += length; + } + else + { + if (rb->buffer_size - rb->write_index > length) + { + /* write_index 后面剩余的空间有足够的长度 */ + memcpy(&rb->buffer_ptr[rb->write_index], ptr, length); + rb->write_index += length; + } + else + { + /* + * write_index 后面剩余的空间不存在足够的长度，需要把部分数据复制到 + * 前面的剩余空间中 + */ + memcpy(&rb->buffer_ptr[rb->write_index], ptr, + rb->buffer_size - rb->write_index); + memcpy(&rb->buffer_ptr[0], &ptr[rb->buffer_size - rb->write_index], + length - (rb->buffer_size - rb->write_index)); + rb->write_index = length - (rb->buffer_size - rb->write_index); + } + } + + return RT_TRUE; } /* 从环形buffer中读出数据 */ static rt_bool_t rb_get(struct rb* rb, rt_uint8_t *ptr, rt_uint16_t length) { - rt_size_t size; - - /* 判断是否有足够的数据 */ - if (rb->read_index > rb->write_index) - size = rb->buffer_size - rb->read_index + rb->write_index; - else - size = rb->write_index - rb->read_index; - - /* 没有足够的数据 */ - if (size < length) return RT_FALSE; - - if (rb->read_index > rb->write_index) - { - if (rb->buffer_size - rb->read_index > length) - { - /* read_index的数据足够多，直接复制 */ - memcpy(ptr, &rb->buffer_ptr[rb->read_index], length); - rb->read_index += length; - } - else - { - /* read_index的数据不够，需要分段复制 */ - memcpy(ptr, &rb->buffer_ptr[rb->read_index], - rb->buffer_size - rb->read_index); - memcpy(&ptr[rb->buffer_size - rb->read_index], &rb->buffer_ptr[0], - length - rb->buffer_size + rb->read_index); - rb->read_index = length - rb->buffer_size + rb->read_index; - } - } - else - { - /* - * read_index要比write_index小，总的数据量够（前面已经有总数据量的判 - * 断），直接复制出数据。 - */ - memcpy(ptr, &rb->buffer_ptr[rb->read_index], length); - rb->read_index += length; - } - - return RT_TRUE; + rt_size_t size; + + /* 判断是否有足够的数据 */ + if (rb->read_index > rb->write_index) + size = rb->buffer_size - rb->read_index + rb->write_index; + else + size = rb->write_index - rb->read_index; + + /* 没有足够的数据 */ + if (size < length) return RT_FALSE; + + if (rb->read_index > rb->write_index) + { + if (rb->buffer_size - rb->read_index > length) + { + /* read_index的数据足够多，直接复制 */ + memcpy(ptr, &rb->buffer_ptr[rb->read_index], length); + rb->read_index += length; + } + else + { + /* read_index的数据不够，需要分段复制 */ + memcpy(ptr, &rb->buffer_ptr[rb->read_index], + rb->buffer_size - rb->read_index); + memcpy(&ptr[rb->buffer_size - rb->read_index], &rb->buffer_ptr[0], + length - rb->buffer_size + rb->read_index); + rb->read_index = length - rb->buffer_size + rb->read_index; + } + } + else + { + /* + * read_index要比write_index小，总的数据量够（前面已经有总数据量的判 + * 断），直接复制出数据。 + */ + memcpy(ptr, &rb->buffer_ptr[rb->read_index], length); + rb->read_index += length; + } + + return RT_TRUE; } /* 生产者线程入口 */ static void thread_entry(void* parameter) { - rt_bool_t result; - rt_uint8_t data_buffer[BUFFER_ITEM + 1]; - - while (1) - { - /* 持有信号量 */ - rt_sem_take(sem, RT_WAITING_FOREVER); - /* 从环buffer中获得数据 */ - result = rb_get(&working_rb, &data_buffer[0], BUFFER_ITEM); - /* 释放信号量 */ - rt_sem_release(sem); - data_buffer[BUFFER_ITEM] = '\0'; - - if (result == RT_TRUE) - { - /* 获取数据成功，打印数据 */ - rt_kprintf("%s\n", data_buffer); - } - - /* 做一个5 OS Tick的休眠 */ - rt_thread_delay(5); - } + rt_bool_t result; + rt_uint8_t data_buffer[BUFFER_ITEM + 1]; + + while (1) + { + /* 持有信号量 */ + rt_sem_take(sem, RT_WAITING_FOREVER); + /* 从环buffer中获得数据 */ + result = rb_get(&working_rb, &data_buffer[0], BUFFER_ITEM); + /* 释放信号量 */ + rt_sem_release(sem); + data_buffer[BUFFER_ITEM] = '\0'; + + if (result == RT_TRUE) + { + /* 获取数据成功，打印数据 */ + rt_kprintf("%s\n", data_buffer); + } + + /* 做一个5 OS Tick的休眠 */ + rt_thread_delay(5); + } } /* worker线程入口 */ static void worker_entry(void* parameter) { - rt_bool_t result; - rt_uint32_t index, setchar; - rt_uint8_t data_buffer[BUFFER_ITEM]; - - setchar = 0x21; - while (1) - { - /* 构造数据 */ - for(index = 0; index < BUFFER_ITEM; index++) - { - data_buffer[index] = setchar; - if (++setchar == 0x7f) - setchar = 0x21; - } - - /* 持有信号量 */ - rt_sem_take(sem, RT_WAITING_FOREVER); - /* 把数据放到环形buffer中 */ - result = rb_put(&working_rb, &data_buffer[0], BUFFER_ITEM); - /* 释放信号量 */ - rt_sem_release(sem); - - /* 放入成功，做一个10 OS Tick的休眠 */ - rt_thread_delay(10); - } + rt_bool_t result; + rt_uint32_t index, setchar; + rt_uint8_t data_buffer[BUFFER_ITEM]; + + setchar = 0x21; + while (1) + { + /* 构造数据 */ + for(index = 0; index < BUFFER_ITEM; index++) + { + data_buffer[index] = setchar; + if (++setchar == 0x7f) + setchar = 0x21; + } + + /* 持有信号量 */ + rt_sem_take(sem, RT_WAITING_FOREVER); + /* 把数据放到环形buffer中 */ + result = rb_put(&working_rb, &data_buffer[0], BUFFER_ITEM); + /* 释放信号量 */ + rt_sem_release(sem); + + /* 放入成功，做一个10 OS Tick的休眠 */ + rt_thread_delay(10); + } } int semaphore_buffer_worker_init() { - /* 初始化ring buffer */ - rb_init(&working_rb, working_buffer, BUFFER_SIZE); - - /* 创建信号量 */ - sem = rt_sem_create("sem", 1, RT_IPC_FLAG_FIFO); - if (sem == RT_NULL) - { - tc_stat(TC_STAT_END | TC_STAT_FAILED); - return 0; - } - - /* 创建线程1 */ - tid = rt_thread_create("thread", - thread_entry, RT_NULL, /* 线程入口是thread_entry, 入口参数是RT_NULL */ - THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); - if (tid != RT_NULL) - rt_thread_startup(tid); - else - tc_stat(TC_STAT_END | TC_STAT_FAILED); - - /* 创建线程2 */ - worker = rt_thread_create("worker", - worker_entry, RT_NULL, /* 线程入口是worker_entry, 入口参数是RT_NULL */ - THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); - if (worker != RT_NULL) - rt_thread_startup(worker); - else - tc_stat(TC_STAT_END | TC_STAT_FAILED); - - return 0; + /* 初始化ring buffer */ + rb_init(&working_rb, working_buffer, BUFFER_SIZE); + + /* 创建信号量 */ + sem = rt_sem_create("sem", 1, RT_IPC_FLAG_FIFO); + if (sem == RT_NULL) + { + tc_stat(TC_STAT_END | TC_STAT_FAILED); + return 0; + } + + /* 创建线程1 */ + tid = rt_thread_create("thread", + thread_entry, RT_NULL, /* 线程入口是thread_entry, 入口参数是RT_NULL */ + THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); + if (tid != RT_NULL) + rt_thread_startup(tid); + else + tc_stat(TC_STAT_END | TC_STAT_FAILED); + + /* 创建线程2 */ + worker = rt_thread_create("worker", + worker_entry, RT_NULL, /* 线程入口是worker_entry, 入口参数是RT_NULL */ + THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); + if (worker != RT_NULL) + rt_thread_startup(worker); + else + tc_stat(TC_STAT_END | TC_STAT_FAILED); + + return 0; } #ifdef RT_USING_TC static void _tc_cleanup() { - /* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */ - rt_enter_critical(); + /* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */ + rt_enter_critical(); - /* 删除信号量 */ - if (sem != RT_NULL) - rt_sem_delete(sem); + /* 删除信号量 */ + if (sem != RT_NULL) + rt_sem_delete(sem); - /* 删除线程 */ - if (tid != RT_NULL && tid->stat != RT_THREAD_CLOSE) - rt_thread_delete(tid); - if (worker != RT_NULL && worker->stat != RT_THREAD_CLOSE) - rt_thread_delete(worker); + /* 删除线程 */ + if (tid != RT_NULL && tid->stat != RT_THREAD_CLOSE) + rt_thread_delete(tid); + if (worker != RT_NULL && worker->stat != RT_THREAD_CLOSE) + rt_thread_delete(worker); - /* 调度器解锁 */ - rt_exit_critical(); + /* 调度器解锁 */ + rt_exit_critical(); - /* 设置TestCase状态 */ - tc_done(TC_STAT_PASSED); + /* 设置TestCase状态 */ + tc_done(TC_STAT_PASSED); } int _tc_semaphore_buffer_worker() { - /* 设置TestCase清理回调函数 */ - tc_cleanup(_tc_cleanup); - semaphore_buffer_worker_init(); + /* 设置TestCase清理回调函数 */ + tc_cleanup(_tc_cleanup); + semaphore_buffer_worker_init(); - /* 返回TestCase运行的最长时间 */ - return 100; + /* 返回TestCase运行的最长时间 */ + return 100; } /* 输出函数命令到finsh shell中 */ FINSH_FUNCTION_EXPORT(_tc_semaphore_buffer_worker, a buffer worker with semaphore example); @@ -260,8 +260,8 @@ FINSH_FUNCTION_EXPORT(_tc_semaphore_buffer_worker, a buffer worker with semaphor /* 用户应用入口 */ int rt_application_init() { - semaphore_buffer_worker_init(); + semaphore_buffer_worker_init(); - return 0; + return 0; } #endif -- cgit v1.3.1