60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
#ifndef H_RPMSQ
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#define H_RPMSQ
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/** \ingroup rpmio
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* \file rpmio/rpmsq.h
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*
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*/
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#include <rpm/rpmsw.h>
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#include <signal.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \ingroup rpmsq
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* Default signal handler prototype.
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* @param signum signal number
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* @param info (siginfo_t) signal info
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* @param context signal context
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*/
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#ifdef SA_SIGINFO
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typedef void (*rpmsqAction_t) (int signum, siginfo_t * info, void * context);
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#else
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typedef void (*rpmsqAction_t) (int signum);
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#endif
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/** \ingroup rpmsq
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* Test if given signal has been caught (while signals blocked).
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* Similar to sigismember() but operates on internal signal queue.
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* @param signum signal to test for
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* @return 1 if caught, 0 if not and -1 on error
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*/
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int rpmsqIsCaught(int signum);
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/** \ingroup rpmsq
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* Default signal handler.
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* @param signum signal number
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* @param info (siginfo_t) signal info
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* @param context signal context
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*/
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#ifdef SA_SIGINFO
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void rpmsqAction(int signum, siginfo_t * info, void * context);
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#else
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void rpmsqAction(int signum);
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#endif
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/** \ingroup rpmsq
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* Enable or disable a signal handler.
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* @param signum signal to enable (or disable if negative)
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* @param handler sa_sigaction handler (or NULL to use rpmsqHandler())
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* @return no. of refs, -1 on error
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*/
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int rpmsqEnable(int signum, rpmsqAction_t handler);
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#ifdef __cplusplus
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}
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#endif
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#endif /* H_RPMSQ */
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