X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=signal.c;h=5d6e6e45dcd8e728c1bfcc6e08899bf08d4fc512;hp=b8f3bbbc9e1c8fda680edc57591abaf211d17091;hb=e0e0da08c77df028c261e27f3ab0b6250fbaa3bc;hpb=76f9e57d909a53d30a4f8fe5e924683fa9b7c0d5 diff --git a/signal.c b/signal.c index b8f3bbbc..5d6e6e45 100644 --- a/signal.c +++ b/signal.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004-2012 Andre Noll + * Copyright (C) 2004 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ @@ -7,10 +7,15 @@ #include #include +#include #include "para.h" #include "error.h" #include "fd.h" +#include "list.h" +#include "string.h" +#include "sched.h" +#include "signal.h" static int signal_pipe[2]; @@ -29,12 +34,14 @@ static int signal_pipe[2]; * ready for reading, see select(2). * * \return This function either succeeds or calls exit(2) to terminate the - * current process. On success, the file descriptor of the read end of the - * signal pipe is returned. + * current process. On success, a signal task structure is returned. */ -int para_signal_init(void) +struct signal_task *signal_init_or_die(void) { + struct signal_task *st; int ret; + + PARA_NOTICE_LOG("setting up signal handling\n"); if (pipe(signal_pipe) < 0) { ret = -ERRNO_TO_PARA_ERROR(errno); goto err_out; @@ -45,7 +52,9 @@ int para_signal_init(void) ret = mark_fd_nonblocking(signal_pipe[1]); if (ret < 0) goto err_out; - return signal_pipe[0]; + st = para_calloc(sizeof(*st)); + st->fd = signal_pipe[0]; + return st; err_out: PARA_EMERG_LOG("%s\n", para_strerror(-ret)); exit(EXIT_FAILURE); @@ -220,9 +229,12 @@ int para_next_signal(fd_set *rfds) } /** - * Close the write end of the signal pipe. + * Close the write end of the signal pipe, deallocate resources. + * + * \param st The pointer obtained earlier from signal_init_or_die(). */ -void para_signal_shutdown(void) +void signal_shutdown(struct signal_task *st) { close(signal_pipe[1]); + free(st); }