cleaner debug output

1 files changed, 6 insertions, 4 deletions

diff --git a/Presence/monitortty.c b/Presence/monitortty.c
index 7b5dc82c..675abe5c 100644
--- a/Presence/monitortty.c
+++ b/Presence/monitortty.c
@@ -110,7 +110,7 @@ int tty = -1;
 
 void *write_vtch(void *pfd) {
         int fd = (int)(intptr_t)pfd;
-        printf("START write_vtch fd=%i\n",fd);
+        printf("started VT_WAITEVENT loop fd=%i\n",fd);
         pthread_mutex_lock(&mu);
         tty = ttyfd();
         pthread_mutex_unlock(&mu);
@@ -131,6 +131,7 @@ void *write_vtch(void *pfd) {
                 }
                 do {
                         vt_wait(tty);
+                        // printf("vt_wait() finished. tty=%d fd=%d\n",tty,fd);
                         active_tty = get_active(tty);
                 } while (active_tty==reported_tty);
         }
@@ -138,7 +139,7 @@ void *write_vtch(void *pfd) {
         // TODO:
         //  use VT_GETSTATE
         //  use VT_WAITEVENT
-        printf("QUIT write_vtch\n");
+        printf("stopped VT_WAITEVENT loop\n");
         tty = -1;
         pthread_mutex_destroy(&mu);
         return NULL;
@@ -147,7 +148,7 @@ void *write_vtch(void *pfd) {
 
 void monitorTTY(int fd) {
         pthread_mutex_init(&mu,NULL);
-        printf ("Hello world.\n");
+        // printf ("Hello world.\n");
         pthread_create (&mt, NULL, write_vtch, (void*)(intptr_t)fd);
 }
 
@@ -158,8 +159,9 @@ void closeTTY() {
         active = get_active(tty);
         fd = tty;
         pthread_mutex_unlock(&mu);
-        pthread_cancel(mt);
+        // pthread_cancel(mt);
         char cmd[40]; cmd[39] = '\0';
+        // Hack to wake up from VT_WAITEVENT ioctl
         snprintf(cmd,39,"chvt %i;chvt %i",active+1,active);
         system(cmd);
         pthread_join(mt,NULL);