> I read in several comp.c sources that functions in the comps > get passed (void *arg, long period).
These are typically functions setup with hal_export_funct(). The interface is described in hal.h: https://github.com/LinuxCNC/linuxcnc/blob/2.7-hm2-encoder-raw-position/src/hal/hal.h "hal_export_funct() makes a realtime function provided by a component available to the system. A subsequent call to hal_add_funct_to_thread() can be used to schedule the execution of the function as needed by the system. 'name' is the name of the new function. It must be no longer than HAL_NAME_LEN. This is the name as it would appear in an ini file, which does not need to be the same as the C function name. 'funct' is a pointer to the function code. 'funct' must be the address of a function that accepts a void pointer and a long int. The pointer will be set to the value 'arg' below, and the long will be set to the thread period in nanoseconds. 'arg' is a void pointer that will be passed to the function each time it is called. ..." -- Dewey Garrett _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
