Debugging select loop. Here the process freezes.

diff --git a/select.c b/select.c
index 8763739..b22cb12 100644 (file)
--- a/select.c
+++ b/select.c
@@ -88,9 +88,12 @@ int select_main(int polling, int *global_change, void (*lock)(void), void (*unlo
         * if no future timeout exists, select will wait infinit.
         */
 
+printf("-"); fflush(stdout);
 again:
+printf("1"); fflush(stdout);
        /* process all work events */
        if (next_work()) {
+printf("2"); fflush(stdout);
                work = 1;
                goto again;
        }
@@ -98,7 +101,9 @@ again:
        /* process timer events and get timeout for next timer event */
        temp = 0;
        timer = nearest_timer(&select_timer, &temp);
+printf("3"); fflush(stdout);
        if (temp) {
+printf("4"); fflush(stdout);
                work = 1;
                goto again;
        }
@@ -112,6 +117,7 @@ again:
        FD_ZERO(&writeset);
        FD_ZERO(&exceptset);
 
+printf("5"); fflush(stdout);
        /* prepare read and write fdsets */
        lcr_fd = fd_first;
        while(lcr_fd) {
@@ -123,6 +129,7 @@ again:
                        FD_SET(lcr_fd->fd, &exceptset);
                lcr_fd = lcr_fd->next;
        }
+printf("6"); fflush(stdout);
 
        if (unlock)
                unlock();
@@ -138,6 +145,7 @@ again:
                *global_change = 0;
                return 1;
        }
+printf("7"); fflush(stdout);
 
        /* fire timers */
 #if 0
@@ -146,6 +154,7 @@ again:
 
        /* call registered callback functions */
 restart:
+printf("8"); fflush(stdout);
        unregistered = 0;
        lcr_fd = fd_first;
        while(lcr_fd) {
@@ -164,10 +173,12 @@ restart:
                        FD_CLR(lcr_fd->fd, &exceptset);
                }
                if (flags) {
+printf("9"); fflush(stdout);
                        work = 1;
                        lcr_fd->cb(lcr_fd, flags, lcr_fd->cb_instance, lcr_fd->cb_index);
                        if (unregistered)
                                goto restart;
+printf("-"); fflush(stdout);
                        return 1;
                }
                lcr_fd = lcr_fd->next;