diff options
Diffstat (limited to 'rts/win32/ConsoleHandler.c')
| -rw-r--r-- | rts/win32/ConsoleHandler.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/rts/win32/ConsoleHandler.c b/rts/win32/ConsoleHandler.c index a2de74b54a..76ebea0583 100644 --- a/rts/win32/ConsoleHandler.c +++ b/rts/win32/ConsoleHandler.c @@ -264,8 +264,13 @@ rts_InstallConsoleEvent(int action, StgStablePtr *handler) } break; case STG_SIG_HAN: +#ifdef THREADED_RTS + // handler is stored in an MVar in the threaded RTS + console_handler = STG_SIG_HAN; +#else console_handler = (StgInt)*handler; - if ( previous_hdlr < 0 ) { +#endif + if (previous_hdlr < 0 || previous_hdlr == STG_SIG_HAN) { /* Only install generic_handler() once */ if ( !SetConsoleCtrlHandler(generic_handler, TRUE) ) { errorBelch("warning: unable to install console event handler"); @@ -275,10 +280,13 @@ rts_InstallConsoleEvent(int action, StgStablePtr *handler) } if (previous_hdlr == STG_SIG_DFL || - previous_hdlr == STG_SIG_IGN) { + previous_hdlr == STG_SIG_IGN || + previous_hdlr == STG_SIG_HAN) { return previous_hdlr; } else { - *handler = (StgStablePtr)previous_hdlr; + if (handler != NULL) { + *handler = (StgStablePtr)previous_hdlr; + } return STG_SIG_HAN; } } |