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| author | Mattia Rizzolo <mattia@mapreri.org> | 2014-10-03 14:04:58 +0000 |
|---|---|---|
| committer | Mattia Rizzolo <mattia@mapreri.org> | 2014-10-03 14:04:58 +0000 |
| commit | 2d113e8792747151bf5d830f1a1485f2f951f940 (patch) | |
| tree | f29e273d53fe5735cdac171504d798bf45ea2007 /include/sane/sanei_signal.h | |
Imported Upstream version 0.50upstream/0.50
Diffstat (limited to 'include/sane/sanei_signal.h')
| -rw-r--r-- | include/sane/sanei_signal.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/include/sane/sanei_signal.h b/include/sane/sanei_signal.h new file mode 100644 index 0000000..0033c1c --- /dev/null +++ b/include/sane/sanei_signal.h @@ -0,0 +1,50 @@ +#ifdef HAVE_SIGPROCMASK +# define SIGACTION sigaction +#else + +/* Just enough backwards compatibility that we get by in the backends + without making handstands. */ +# ifdef sigset_t +# undef sigset_t +# endif +# ifdef sigemptyset +# undef sigemptyset +# endif +# ifdef sigfillset +# undef sigfillset +# endif +# ifdef sigaddset +# undef sigaddset +# endif +# ifdef sigdelset +# undef sigdelset +# endif +# ifdef sigprocmask +# undef sigprocmask +# endif +# ifdef SIG_BLOCK +# undef SIG_BLOCK +# endif +# ifdef SIG_UNBLOCK +# undef SIG_UNBLOCK +# endif +# ifdef SIG_SETMASK +# undef SIG_SETMASK +# endif + +# define sigset_t int +# define sigemptyset(set) do { *(set) = 0; } while (0) +# define sigfillset(set) do { *(set) = ~0; } while (0) +# define sigaddset(set,signal) do { *(set) |= sigmask (signal); } while (0) +# define sigdelset(set,signal) do { *(set) &= ~sigmask (signal); } while (0) +# define sigaction(sig,new,old) sigvec (sig,new,old) + + /* Note: it's not safe to just declare our own "struct sigaction" since + some systems (e.g., some versions of OpenStep) declare that structure, + but do not implement sigprocmask(). Hard to believe, aint it? */ +# define SIGACTION sigvec +# define SIG_BLOCK 1 +# define SIG_UNBLOCK 2 +# define SIG_SETMASK 3 +#endif /* !HAVE_SIGPROCMASK */ + |