/**
* This function will create a thread object and allocate thread object memory
* and stack.
*
* @param name the name of thread, which shall be unique
* @param entry the entry function of thread
* @param parameter the parameter of thread enter function
* @param stack_size the size of thread stack
* @param priority the priority of thread
* @param tick the time slice if there are same priority thread
*
* @return the created thread object
*
*/
rt_thread_t rt_thread_create(const char *name,
void (*entry)(void *parameter), void *parameter,
rt_uint32_t stack_size,
rt_uint8_t priority,
rt_uint32_t tick)
{
struct rt_thread *thread;
void *stack_start;
thread = (struct rt_thread *)rt_object_allocate(RT_Object_Class_Thread, name);
if (thread == RT_NULL) return RT_NULL;
stack_start = (void *)rt_malloc(stack_size);
if (stack_start == RT_NULL)
{
/* allocate stack failure */
rt_object_delete((rt_object_t)thread);
return RT_NULL;
}
_rt_thread_init(thread, name, entry, parameter,
stack_start, stack_size,
priority, tick);
return thread;
}
/**
* This function will initialize a thread, normally it's used to initialize a
* static thread object.
*
* @param thread the static thread object
* @param name the name of thread, which shall be unique
* @param entry the entry function of thread
* @param parameter the parameter of thread enter function
* @param stack_start the start address of thread stack
* @param stack_size the size of thread stack
* @param priority the priority of thread
* @param tick the time slice if there are same priority thread
*
* @return the operation status, RT_EOK on OK, -RT_ERROR on error
*/
rt_err_t rt_thread_init(struct rt_thread *thread,
const char *name,
void (*entry)(void *parameter),
void *parameter,
void *stack_start,
rt_uint32_t stack_size,
rt_uint8_t priority,
rt_uint32_t tick)
{
/* thread check */
RT_ASSERT(thread != RT_NULL);
RT_ASSERT(stack_start != RT_NULL);
/* init thread object */
rt_object_init((rt_object_t)thread, RT_Object_Class_Thread, name);
return _rt_thread_init(thread,
name,
entry,
parameter,
stack_start,
stack_size,
priority,
tick);
}