2009-04-07 Atsushi Enomoto <atsushi@ximian.com>

[mono.git] / support / serial.c

diff --git a/support/serial.c b/support/serial.c
index cfa6ce1672ff106e12623678f81562a8a3a4eb3e..c0708a11929529d77ef8ae79abbbce521a10e8b7 100644 (file)
--- a/support/serial.c
+++ b/support/serial.c
@@ -91,38 +91,35 @@ read_serial (int fd, guchar *buffer, int offset, int count)
 int
 write_serial (int fd, guchar *buffer, int offset, int count, int timeout)
 {
-       struct timeval tmval;
-       fd_set writefs;
+       struct pollfd pinfo;
        guint32 n;
 
-       n = count - offset;
+       pinfo.fd = fd;
+       pinfo.events = POLLOUT;
+       pinfo.revents = POLLOUT;
+
+       n = count;
 
-       FD_SET(fd, &writefs);
-       tmval.tv_sec = timeout / 1000;
-       tmval.tv_usec = (timeout - tmval.tv_sec) * 1000;        
-       
        while (n > 0)
        {
                size_t t;
                        
-               if (timeout > 0)
-               {
-                       if (select(fd+1, NULL, &writefs, NULL, &tmval) <= 0 && errno != EINTR)
-                       {
+               if (timeout != 0) {
+                       int c;
+                       
+                       while ((c = poll (&pinfo, 1, timeout)) == -1 && errno == EINTR)
+                               ;
+                       if (c == -1)
                                return -1;
-                       }
                }               
 
-               t = write(fd, buffer + offset, count);
-               
-               if (timeout > 0)
-               {
-                       if (select(fd+1, NULL, &writefs, NULL, &tmval) <= 0  && errno != EINTR)
-                       {
-                               return -1;
-                       }
-       }
+               do {
+                       t = write (fd, buffer + offset, n);
+               } while (t == -1 && errno == EINTR);
 
+               if (t < 0)
+                       return -1;
+               
                offset += t;
                n -= t; 
        }
@@ -272,6 +269,7 @@ set_attributes (int fd, int baud_rate, MonoParity parity, int dataBits, MonoStop
            
        case Even: /* Even */
            newtio.c_cflag &= ~(PARODD);
+           newtio.c_cflag |= (PARENB);
            break;
            
        case Mark: /* Mark */
@@ -399,6 +397,12 @@ set_signal (int fd, MonoSerialSignal signal, gboolean value)
        return 1;
 }
 
+void
+breakprop (int fd)
+{
+       tcsendbreak (fd, 0);
+}
+
 gboolean
 poll_serial (int fd, gint32 *error, int timeout)
 {