home *** CD-ROM | disk | FTP | other *** search
- /*
- (C) 1995-96 AROS - The Amiga Replacement OS
- $Id: freesignal.c,v 1.7 1997/01/01 03:46:10 ldp Exp $
- $Log: freesignal.c,v $
- Revision 1.7 1997/01/01 03:46:10 ldp
- Committed Amiga native (support) code
-
- Changed clib to proto
-
- Revision 1.6 1996/12/10 13:51:46 aros
- Moved all #include's in the first column so makedepend can see it.
-
- Revision 1.5 1996/10/24 15:50:50 aros
- Use the official AROS macros over the __AROS versions.
-
- Revision 1.4 1996/08/13 13:56:02 digulla
- Replaced AROS_LA by AROS_LHA
- Replaced some AROS_LH*I by AROS_LH*
- Sorted and added includes
-
- Revision 1.3 1996/08/01 17:41:12 digulla
- Added standard header for all files
-
- Desc:
- Lang: english
- */
- #include <exec/execbase.h>
- #include <exec/tasks.h>
- #include <aros/libcall.h>
- #include <proto/exec.h>
-
- /*****************************************************************************
-
- NAME */
-
- AROS_LH1(void, FreeSignal,
-
- /* SYNOPSIS */
- AROS_LHA(LONG, signalNum, D0),
-
- /* LOCATION */
- struct ExecBase *, SysBase, 56, Exec)
-
- /* FUNCTION
- Free a signal allocated with AllocSignal().
-
- INPUTS
- signalNum - Number of the signal to free or -1 to do nothing.
-
- RESULT
-
- NOTES
-
- EXAMPLE
-
- BUGS
-
- SEE ALSO
- AllocSignal(), Signal(), Wait()
-
- INTERNALS
-
- HISTORY
-
- ******************************************************************************/
- {
- AROS_LIBFUNC_INIT
-
- if(signalNum!=-1)
- {
- /* Nobody guarantees that the compiler will make it atomic. */
- Forbid();
-
- /* Clear the bit */
- SysBase->ThisTask->tc_SigAlloc&=~(1<<signalNum);
- Permit();
- }
- AROS_LIBFUNC_EXIT
- }
-
-