CooCox CoOS User's Guide

2 Task Management
2.1 Task
During OS-based application development, an application is usually
seperated into a number of tasks. In CooCox CoOS, a task is a C function whose
inside is a infinite loop, it also has the return values and parameters. However,
since a task will never return, the returned type must be defined as void. Code
1 shows a typical task structure.
Code 1 An infinite loop task
void myTask (void* pdata)
{
for(;;)
{
}
}
Which is different from the C function, the quit of a task is achieved by
calling system API function. Once you quit the task only through the ending of
the code execution, the system would breakdown.
You can delete a task by calling CoExitTask () or CoDelTask (taskID) in
CooCox CoOS. CoExitTask () is called to delete the current running task while
CoDelTask (taskID) to delete others. If the incoming parameter is the current
task ID, CoDelTask (taskID) can also delete the current task. The concrete use
is shown in Code 2.
Code 2 Deleting a task
void myTask0 (void* pdata)
{
CoExitTask();
}
void myTask1 (void* pdata)
{
CoDelTask(taskID);
}
9