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- TABLE OF CONTENTS
-
- misc.resource/MR_ALLOCMISCRESOURCE
- misc.resource/MR_FREEMISCRESOURCE
-
- misc.resource/MR_ALLOCMISCRESOURCE misc.resource/MR_ALLOCMISCRESOURCE
-
- NAME
- MR_ALLOCMISCRESOURCE - allocate one of the misc resources
-
- SYNOPSIS
- CurrentUser = MR_ALLOCMISCRESOURCE( unitNum, name ), misc.resource
- D0 D0 A1 A6
-
- STRPTR CurrentUser;
- LONG unitNum;
- STRPTR name;
-
- FUNCTION
- This routine allocates one of the miscellaneous resources.
- If the resource is currently allocated, an error is returned.
- If you do get it, your name is associated with the resource
- (so a user can see who has it allocated).
-
- This routine may not be called from an interrupt routine
-
- DESCRIPTION
- There are certain parts of the hardware that a multitasking-
- friendly program may need to take over. The serial port
- is a good example. By grabbing the misc.resource for the
- serial port, the caller would "own" the hardware registers
- associated with that function. Nobody else, including the
- system serial driver is allowed to interfere.
-
- The misc.resource must be accessed using assembly language. The set
- of currently defined units and the function offsets from the resource
- base are listed in the resources/misc.i include file.
-
- INPUTS
- unitNum - the number of the resource you want to allocate
- (eg. MR_SERIALBITS).
- name - a mnenonic name that will help the user figure out
- what piece of software is hogging a resource.
- (havoc breaks out if a name of null is passed in...)
-
- RESULTS
- CurrentUser - if the resource is busy, then the name of
- the current user is returned. If the resource is
- free, then null is returned.
-
- BUGS
-
- SEE ALSO
- resources/misc.i
- misc.resource/MR_FREEMISCRESOURCE
-
- misc.resource/MR_FREEMISCRESOURCE misc.resource/MR_FREEMISCRESOURCE
-
- NAME
- MR_FREEMISCRESOURCE - make a resource available for reallocation
-
- SYNOPSIS
- MR_FREEMISCRESOURCE( unitNum ), misc.resource
- D0 A6
- LONG unitNum;
-
- FUNCTION
- This routine frees one of the resources allocated
- by MR_ALLOCMISCRESOURCE. The resource is made available
- for reuse.
-
- This routine may not be called from an interrupt routine.
-
- INPUTS
- unitNum - the number of the miscellaneous resource to be freed.
-
- RESULTS
- Frees the appropriate resource.
-
- BUGS
-
- SEE ALSO
- misc.resource/MR_ALLOCMISCRESOURCE
-