/* -*- mode: c++; indent-tabs-mode: nil -*- */
/** @file QC_PipeOutputStream.qpp PipeOutputStream class definition */
/*
  Qore Programming Language

  Copyright (C) 2016 - 2023 Qore Technologies, s.r.o.

  Permission is hereby granted, free of charge, to any person obtaining a
  copy of this software and associated documentation files (the "Software"),
  to deal in the Software without restriction, including without limitation
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  and/or sell copies of the Software, and to permit persons to whom the
  Software is furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in
  all copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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  Note that the Qore library is released under a choice of three open-source
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*/

#include <qore/Qore.h>
#include "qore/intern/StreamPipe.h"

//! This class is not intended to be instantiated directly, please see @ref StreamPipe
/**
    @note stream classes are not designed to be accessed from multiple threads; they have been implemented without
    locking for fast and efficient use when used from a single thread.  For methods that would be unsafe to use in
    another thread, any use of such methods in threads other than the thread where the constructor was called will
    cause a \c STREAM-THREAD-ERROR to be thrown, unless the stream is handed
    off to another thread using the @ref Qore::StreamBase::unassignThread() "StreamBase::unassignThread()"
    method in the thread that currently owns the stream, and the
    @ref Qore::StreamBase::reassignThread() "StreamBase::reassignThread()" method in the new thread.

    @see
    - @ref Qore::StreamWriter "StreamWriter" for a class that can be used to write various kinds of data to an @ref Qore::OutputStream "OutputStream"
    - @ref Qore::StreamPipe

    @since %Qore 0.8.13
 */
qclass PipeOutputStream [arg=PipeOutputStream* os; ns=Qore; vparent=OutputStream; flags=final];

//! Creates the PipeOutputStream
/**
 */
private PipeOutputStream::constructor() {
   assert(false);
}

//! Closes the output stream and releases any resources.
/**
    @throw OUTPUT-STREAM-CLOSED-ERROR the output stream has already been closed
    @throw STREAM-THREAD-ERROR this exception is thrown if this method is called from any thread other than the thread that created the object
 */
nothing PipeOutputStream::close() {
   os->close(xsink);
}

//! Writes bytes to the output stream
/**
    @throw OUTPUT-STREAM-CLOSED-ERROR the output stream has already been closed
    @throw STREAM-THREAD-ERROR this exception is thrown if this method is called from any thread other than the thread that created the object
 */
nothing PipeOutputStream::write(binary data) {
   os->write(data->getPtr(), data->size(), xsink);
}

//! Causes all operations on both pipe streams to wake up and throw an exception.
/** Normally used from the background thread to report an error to the main thread.
    @param ex the exception, must contain strings 'err' and 'desc'
 */
nothing PipeOutputStream::reportError(hash ex) {
   os->reportError(ex);
}
