Differences From Artifact [fe37a284b5]:

• File win/tclWinSerial.c — part of check-in [d323be815f] at 2011-08-09 07:15:09 on branch trunk — [Bug 3388350] mingw64 compiler warnings (user: jan.nijtmans size: 60120) [more...]

To Artifact [d805519474]:

• File win/tclWinSerial.c — part of check-in [70fd0e4074] at 2012-03-23 15:53:52 on branch trunk — Revert some cygwin-related signature changes from [835f8e1e9d] (2010-01-22). They were an attempt to make the cygwin port compile again, but since cygwin is based on unix this serves no purpose any more. Use EAGAIN in stead of EWOULDBLOCK, because in VS10+ the value of EWOULDBLOCK is no longer the same as EAGAIN Add tclWinError.c to the CYGWIN build. (user: jan.nijtmans size: 60115) [more...]

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    timeout = (infoPtr->flags & SERIAL_ASYNC) ? 0 : INFINITE;
    if (WaitForSingleObject(infoPtr->evWritable, timeout) == WAIT_TIMEOUT) {
	/*
	 * The writer thread is blocked waiting for a write to complete and
	 * the channel is in non-blocking mode.
	 */

	errno = EWOULDBLOCK;
	goto error1;
    }

    /*
     * Check for a background error on the last write.
     */

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    timeout = (infoPtr->flags & SERIAL_ASYNC) ? 0 : INFINITE;
    if (WaitForSingleObject(infoPtr->evWritable, timeout) == WAIT_TIMEOUT) {
	/*
	 * The writer thread is blocked waiting for a write to complete and
	 * the channel is in non-blocking mode.
	 */

	errno = EAGAIN;
	goto error1;
    }

    /*
     * Check for a background error on the last write.
     */