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Minimal signal handling interface.

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git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@49 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
This commit is contained in:
behlendo 2008-03-17 18:29:57 +00:00
parent 2bdb28fbe0
commit 1ec74a114c
2 changed files with 25 additions and 0 deletions
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24
include/sys/signal.h Normal file
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@ -0,0 +1,24 @@
#ifndef _SPL_SIGNAL_H
#define _SPL_SIGNAL_H
#define FORREAL 0 /* Usual side-effects */
#define JUSTLOOKING 1 /* Don't stop the process */
/* The "why" argument indicates the allowable side-effects of the call:
*
* FORREAL: Extract the next pending signal from p_sig into p_cursig;
* stop the process if a stop has been requested or if a traced signal
* is pending.
*
* JUSTLOOKING: Don't stop the process, just indicate whether or not
* a signal might be pending (FORREAL is needed to tell for sure).
*/
static __inline__ int
issig(int why)
{
BUG_ON(!(why == FORREAL || why == JUSTLOOKING));
return signal_pending(current);
}
#endif /* SPL_SIGNAL_H */

1
include/sys/sysmacros.h
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@ -8,6 +8,7 @@ extern "C" {
#include <linux/module.h> #include <linux/module.h>
#include <sys/varargs.h> #include <sys/varargs.h>
#include <sys/zone.h> #include <sys/zone.h>
#include <sys/signal.h>
#ifndef _KERNEL #ifndef _KERNEL
#define _KERNEL __KERNEL__ #define _KERNEL __KERNEL__