10.3 Thread Functions for Arrays of Threads

Thread functions (the functions that the threads execute) must have the following prototype, and must be registered using the following registration function. The integer index returned by the registration process is the number which is passed to CPathMakeArray.

void ThreadFn(CPath *self, int *indices)
This is a prototype thread function. All thread-functions must have these parameters. When an array of threads is created, each thread starts executing the specified thread function. The function receives a pointer to a copy of the array's descriptor, and the array element's indices.

int CPathRegisterThreadFn(void *mapfn)
Accepts a pointer to a thread function, and returns an integer index for the function. This number can be used as a parameter to CPathMakeArray.