poll: Document reentrancy restriction on before()

[secnet.git] / process.c

diff --git a/process.c b/process.c
index 64683159ccc40be20132f5bc8d40beb89ed325c1..0a718e20b443e5827d59762602e162300b272df8 100644 (file)
--- a/process.c
+++ b/process.c
@@ -183,11 +183,7 @@ static beforepoll_fn signal_beforepoll;
 static int signal_beforepoll(void *st, struct pollfd *fds, int *nfds_io,
                             int *timeout_io)
 {
-    if (*nfds_io<1) {
-       *nfds_io=1;
-       return ERANGE;
-    }
-    *nfds_io=1;
+    BEFOREPOLL_WANT_FDS(1);
     fds[0].fd=spr;
     fds[0].events=POLLIN;
     return 0;
@@ -317,7 +313,7 @@ void start_signal_handling(void)
        fatal_perror("start_signal_handling: fcntl(O_NONBLOCK)");
     }
 
-    register_for_poll(NULL,signal_beforepoll,signal_afterpoll,1,"signal");
+    register_for_poll(NULL,signal_beforepoll,signal_afterpoll,"signal");
     signal_handling=True;
 
     /* Register signal handlers for all the signals we're interested in */