* remote-hms.c, ser-go32.c, serial.h: Change from

serial_timedreadchar() to new serial_readchar().

gdb/ChangeLog

@@ -1,5 +1,8 @@
 Mon Oct 19 15:09:57 1992  Stu Grossman  (grossman at cygnus.com)
 
+	* remote-hms.c, ser-go32.c, serial.h:  Change from
+	serial_timedreadchar() to new serial_readchar().
+
 	* Makefile.in (HFILES):  Fixup list of nm-*.h files.  Add missing ones.
 
 Mon Oct 19 12:45:23 1992  Per Bothner  (bothner@cygnus.com)

gdb/remote-hms.c

@@ -251,11 +251,10 @@ int check_open()
 static int
 readchar ()
 {
-  int ok;
   int buf;
-  buf = serial_timedreadchar(timeout, &ok);
+  buf = serial_readchar(timeout);
 
-  if (!ok)
+  if (buf < 0)
    error ("Timeout reading from remote system.");
 
   if (!quiet)
@@ -267,10 +266,9 @@ readchar ()
 static int
 readchar_nofail ()
 {
-  int ok;
   int buf;
-  buf = serial_timedreadchar(timeout, &ok);
-  if (!ok) buf = 0;
+  buf = serial_readchar(timeout);
+  if (buf < 0) buf = 0;
   if (!quiet)
    printf("%c",buf);
   
@@ -544,8 +542,8 @@ is_baudrate_right()
   
   while (1) 
   {
-    serial_timedreadchar(timeout, &ok);
-    if (!ok) break;
+    ok = serial_readchar(timeout);
+    if (ok < 0) break;
   }
 
   hms_write("r",1);

gdb/ser-go32.c

@@ -294,20 +294,14 @@ serial_open (name)
 }
 
 int
-serial_timedreadchar (to, ok)
+serial_readchar (to)
       int to;
-      int *ok;
 {
   char buf;
   if (dosasync_read(fd, &buf, 1, to))  
-  {
-    *ok = 1;
-  }
+    return buf;
   else
-  {
-    *ok = 0;
-  }
-  return buf;
+    return -2; /* Timeout, I guess */
 }
 
 int

gdb/serial.h

@@ -56,9 +56,9 @@ void serial_raw PARAMS ((int fd, struct ttystate *oldstate));
 void serial_normal PARAMS ((void));
 
 /* Read one char from the serial device with <TO>-second timeout.
-   Return char, and set ok if ok.  */
+   Returns char if ok, else EOF, -2 for timeout, -3 for anything else  */
 
-int serial_timedreadchar PARAMS ((int to, int *ok));
+int serial_readchar PARAMS ((int to));
 
 /* Set the baudrate to the decimal value supplied, and return 1, or fail and
    return 0.  */