From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Sat, 8 Jan 2011 23:19:51 +0000 (+0000)
Subject: realtime: new -B option for turning off nonblockingness of stdin, helpful for valgrind
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=commitdiff_plain;h=dec7a5b16388ba942088e6dd02914d30d6efdc0c;p=trains.git

realtime: new -B option for turning off nonblockingness of stdin, helpful for valgrind
---

diff --git a/hostside/realtime.c b/hostside/realtime.c
index 1e01430..2a469ea 100644
--- a/hostside/realtime.c
+++ b/hostside/realtime.c
@@ -342,6 +342,7 @@ void debug_count_event(const char *what) {
 #include "realtime+dflags.h"
 
 static int debug_simulate_exactly;
+static int nononblock_stdin;
 
 static void debug_user_set(const DebugSelectorAreaInfo *dsai,
 			   int op, unsigned long bits) {
@@ -470,6 +471,7 @@ int main(int argc, const char **argv) {
       case 'v': picio_send_noise= atoi(arg);      arg=0; break;
       case 'm': sta_state= Sta_Manual;                   break;
       case 'V': simlog_full=1;                           break;
+      case 'B': nononblock_stdin=1;                      break;
       case 'L': logcopy_fn= arg;                  arg=0; break;
       case 'S': simulate= arg;                    arg=0; break;
       case 'D':	debug_arg_spec(arg);              arg=0; break;
@@ -506,6 +508,7 @@ int main(int argc, const char **argv) {
 
     simlog_open(logcopy_fn);
     cmdin_new(&cmdi, 0);
+    if (nononblock_stdin) oop_fd_nonblock(0,0);
 
     serial_open(device);
     r= oop_fd_nonblock(serial_fd, 1);  if (r) diee("nonblock(serial_fd,1)");