diff options
Diffstat (limited to 'gdb/ser-go32.c')
| -rw-r--r-- | gdb/ser-go32.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gdb/ser-go32.c b/gdb/ser-go32.c index 24c55f2..cbfb27f 100644 --- a/gdb/ser-go32.c +++ b/gdb/ser-go32.c @@ -160,12 +160,14 @@ dos_async_rx () } rv = *aptr (async->getp++); + if (async->getp >= async->buffer_end) async->getp = async->buffer_start; return rv; } + static int dosasync_read (fd, buf, len, timeout) int fd; @@ -186,7 +188,7 @@ dosasync_read (fd, buf, len, timeout) while (!dos_async_ready ()) { time (&now); - if (now >= then) + if (now >= then && timeout > 0) return i; } } @@ -258,6 +260,7 @@ go32_readchar (scb, timeout) { char buf; + /* Shortcut for polling */ if (timeout == 0) { |