diff options
| -rw-r--r-- | Changes | 6 | ||||
| -rw-r--r-- | ev.c | 36 |
2 files changed, 39 insertions, 3 deletions
@@ -2,11 +2,13 @@ Revision history for libev, a high-performance and full-featured event loop. TODO: ev_walk TODO: signal handling per loop -TODO: signalfd -TODO: document signalfd procmask +TODO: nsig - incompatible change: do not necessarily reset signal handler to SIG_DFL when a sighandler is stopped. + - ev_default_destroy did not properly set one member to zero, + potentially causing crashes and memory corruption on repated + ev_default_destroy/ev_default_loop calls. - take advantage of signalfd on GNU/Linux systems. - document that the signal mask might be in an unspecified state when using libev's signal handling. @@ -188,6 +188,40 @@ extern "C" { /* this block tries to deduce configuration from header-defined symbols and defaults */ +/* try to deduce the maximum number of signals on this platform */ +#if defined (EV_NSIG) +/* use what's provided */ +#elif defined (NSIG) +# define EV_NSIG (NSIG) +#elif defined(_NSIG) +# define EV_NSIG (_NSIG) +#elif defined (SIGMAX) +# define EV_NSIG (SIGMAX+1) +#elif defined (SIG_MAX) +# define EV_NSIG (SIG_MAX+1) +#elif defined (_SIG_MAX) +# define EV_NSIG (_SIG_MAX+1) +#elif defined (MAXSIG) +# define EV_NSIG (MAXSIG+1) +#elif defined (MAX_SIG) +# define EV_NSIG (MAX_SIG+1) +#elif defined (SIGARRAYSIZE) +# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ +#elif defined (_sys_nsig) +# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ +#else +# error "unable to find value for NSIG, please report" +/* to make it compile regardless, just remove the above line */ +# define EV_NSIG 64 +#endif + +/* Default to some arbitrary number that's big enough to get most + of the common signals. +*/ +#ifndef NSIG +# define NSIG 50 +#endif +/* <-- NSIG logic from Configure */ #ifndef EV_USE_CLOCK_SYSCALL # if __linux && __GLIBC__ >= 2 # define EV_USE_CLOCK_SYSCALL 1 @@ -1632,7 +1666,7 @@ loop_destroy (EV_P) #endif } - ev_free (anfds); anfdmax = 0; + ev_free (anfds); anfds = 0; anfdmax = 0; /* have to use the microsoft-never-gets-it-right macro */ array_free (rfeed, EMPTY); |