CooCox CoOS User's Guide

[in] muterID
the designated mutex section ID
Returns:
E_CALL, be called in the interrupt service program
E_INVALID_ID, the mutex section ID that was incomed is invalid
E_OK,
enter the mutex section successfully
Example usage:
#include "CCRTOS.h"
OS_MutexID mutex;
void TaskN (void *pdata)
{
...
/* Create a mutex */
mutex = CoCreateMutex ();
/* Enter critical region */
CoEnterMutexSection(mutex);
…
/*Process here */
…
/* Exit critical region */
CoLeaveMutexSection(mutex);
...
}
Note:
1) If there are tasks waiting to enter the mutex section currently,it need
to run a task scheduling and the priority of the currently task will be
back to the original priority when leaving the mutex section.
2) This function can not be used in interrupt service routine.
3) It should be used in pairs with CoEnterMutexSection().
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