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changeset 1477:b300f8978722

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* src/common/serial.c: serial_write() was returning an incorrect result code in non-blocking mode when output was blocked. The previous code would return ENOERR with 0 bytes written. This was fixed to return EAGAIN.
author asl
date Tue, 20 Jan 2004 08:53:30 +0000
parents f2453fae08d4
children 5dd2b854cc32
files packages/io/serial/current/ChangeLog packages/io/serial/current/src/common/serial.c
diffstat 2 files changed, 8 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/packages/io/serial/current/ChangeLog
+++ b/packages/io/serial/current/ChangeLog
@@ -1,3 +1,10 @@
+2004-01-12  Dan Jakubiec <djakubiec@yahoo.com>
+
+	* src/common/serial.c: serial_write() was returning an incorrect
+	result code in non-blocking mode when output was blocked.  The
+	previous code would return ENOERR with 0 bytes written.  This
+	was fixed to return EAGAIN.
+
 2003-08-18  Jay Foster <jay@systech.com>
 
 	* src/common/serial.c: Fixed bug for XON/XOFF flow control that
--- a/packages/io/serial/current/src/common/serial.c
+++ b/packages/io/serial/current/src/common/serial.c
@@ -354,7 +354,7 @@ serial_write(cyg_io_handle_t handle, con
                     if (!cbuf->blocking) {
                         *len -= size;   // number of characters actually sent
                         cbuf->waiting = false;
-                        res = size == 0 ? -EAGAIN : ENOERR;
+                        res = (*len == 0) ? -EAGAIN : ENOERR;
                         break;
                     }
 #endif // CYGOPT_IO_SERIAL_SUPPORT_NONBLOCKING