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- /*
- $Id: setexcept.c 1.1 1995/12/17 21:37:10 digulla Exp digulla $
- $Log: setexcept.c $
- * Revision 1.1 1995/12/17 21:37:10 digulla
- * Initial revision
- *
- Desc:
- Lang: english
- */
- #include "exec_intern.h"
-
- /*****************************************************************************
-
- NAME */
- #include <clib/exec_protos.h>
-
- __AROS_LH2(ULONG, SetExcept,
-
- /* SYNOPSIS */
- __AROS_LA(unsigned long, newSignals, D0),
- __AROS_LA(unsigned long, signalSet, D1),
-
- /* LOCATION */
- struct ExecBase *, SysBase, 52, Exec)
-
- /* FUNCTION
- Change the mask of signals causing a task exception.
-
- INPUTS
- newSignals - Set of signals causing the exception.
- signalSet - Mask of affected signals.
-
- RESULT
- Old mask of signals causing a task exception.
-
- NOTES
-
- EXAMPLE
-
- BUGS
-
- SEE ALSO
- AllocSignal(), FreeSignal(), Wait(), SetSignal(), Signal()
-
- INTERNALS
-
- HISTORY
- 29-10-95 digulla automatically created from
- exec_lib.fd and clib/exec_protos.h
- 17-12-95 digulla Incorporated code by Matthias Fleischner
-
- *****************************************************************************/
- {
- __AROS_FUNC_INIT
- struct Task *me;
- ULONG old;
-
- /* Get pointer to current task */
- me=SysBase->ThisTask;
-
- /* Protect mask of sent signals and task lists */
- Disable();
-
- /* Get returncode */
- old=me->tc_SigExcept;
-
- /* Change exception mask */
- me->tc_SigExcept=(old&~signalSet)|(newSignals&signalSet);
-
- /* Does this change include an exception? */
- if(me->tc_SigExcept&me->tc_SigRecvd)
- {
- /* Yes. Set the exception flag. */
- me->tc_Flags|=TF_EXCEPT;
-
- /* Are taskswitches allowed? (Don't count own Disable() here) */
- if(SysBase->TDNestCnt>=0||SysBase->IDNestCnt>0)
- /* No. Store it for later. */
- SysBase->AttnResched|=0x80;
- else
- /* Switches are allowed. Force a rescedule. */
- Switch();
- }
- Enable();
-
- return old;
- __AROS_FUNC_EXIT
- } /* SetExcept */
-