diff options
| author | bernard.xiong <[email protected]> | 2010-03-17 09:57:07 +0000 |
|---|---|---|
| committer | bernard.xiong <[email protected]> | 2010-03-17 09:57:07 +0000 |
| commit | 2d54fcc40581c348959e50a853ef7d4c0478974f (patch) | |
| tree | 34028e9e3a19c6f3f1755b9ffdf17724f0f5f0a6 /examples/kernel/semaphore_buffer_worker.c | |
| parent | 824dc0b00e6d390f78de43d806bebb170635cda5 (diff) | |
add heap and semaphore examples.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@501 bbd45198-f89e-11dd-88c7-29a3b14d5316
Diffstat (limited to 'examples/kernel/semaphore_buffer_worker.c')
| -rw-r--r-- | examples/kernel/semaphore_buffer_worker.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/examples/kernel/semaphore_buffer_worker.c b/examples/kernel/semaphore_buffer_worker.c new file mode 100644 index 0000000000..8dcf242063 --- /dev/null +++ b/examples/kernel/semaphore_buffer_worker.c @@ -0,0 +1,121 @@ +#include <rtthread.h>
+#include "tc_comm.h"
+
+static rt_sem_t sem;
+static rt_thread_t t1, worker;
+
+#define BUFFER_SIZE 256
+#define DATA_ITEM_SIZE 32
+
+static rt_uint8_t working_buffer[BUFFER_SIZE];
+static rt_uint16_t write_index, read_index;
+
+static void thread1_entry(void* parameter)
+{
+ rt_err_t result;
+ rt_uint16_t next_index;
+ rt_uint8_t data[DATA_ITEM_SIZE];
+
+ while (1)
+ {
+ /* take a semaphore */
+ result = rt_sem_take(sem, RT_WAITING_FOREVER);
+ if (result != RT_EOK)
+ {
+ tc_done(TC_STAT_FAILED);
+ return;
+ }
+
+ /* read buffer */
+
+ /* release semaphore */
+ rt_sem_release(sem);
+ }
+}
+
+static void worker_thread_entry(void* parameter)
+{
+ rt_err_t result;
+ rt_uint16_t next_index;
+ rt_uint8_t data[DATA_ITEM_SIZE];
+
+ while (1)
+ {
+ /* take a semaphore */
+ result = rt_sem_take(sem, RT_WAITING_FOREVER);
+ if (result != RT_EOK)
+ {
+ tc_done(TC_STAT_FAILED);
+ return;
+ }
+
+ /* write buffer */
+
+ /* release semaphore */
+ rt_sem_release(sem);
+ }
+}
+
+int semaphore_buffer_worker_init()
+{
+ sem = rt_sem_create("sem", 0, RT_IPC_FLAG_FIFO);
+ if (sem == RT_NULL)
+ {
+ tc_stat(TC_STAT_END | TC_STAT_FAILED);
+ return 0;
+ }
+
+ write_index = read_index = 0;
+
+ t1 = rt_thread_create("t1",
+ thread1_entry, RT_NULL,
+ THREAD_STACK_SIZE, THREAD_PRIORITY + 1, THREAD_TIMESLICE);
+ if (t1 != RT_NULL)
+ rt_thread_startup(t1);
+ else
+ tc_stat(TC_STAT_END | TC_STAT_FAILED);
+
+ worker = rt_thread_create("worker",
+ worker_thread_entry, 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()
+{
+ /* lock scheduler */
+ rt_enter_critical();
+
+ /* delete t1, t2 and worker thread */
+ rt_thread_delete(t1);
+ rt_thread_delete(worker);
+
+ tc_stat(TC_STAT_PASSED);
+
+ /* unlock scheduler */
+ rt_exit_critical();
+}
+
+int _tc_semaphore_buffer_worker()
+{
+ /* set tc cleanup */
+ tc_cleanup(_tc_cleanup);
+ semaphore_buffer_worker_init();
+
+ return 50;
+}
+FINSH_FUNCTION_EXPORT(_tc_semaphore_buffer_worker, two threads working on a buffer example);
+#else
+int rt_application_init()
+{
+ semaphore_buffer_worker_init();
+
+ return 0;
+}
+#endif
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