107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
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* Copyright (c) 2012, Jonathan Schleifer <js@webkeks.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <string.h>
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#include "stream.h"
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static bool
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ctor(void *ptr, va_list args)
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{
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CFWStream *stream = ptr;
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stream->ops = NULL;
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return true;
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}
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static void
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dtor(void *ptr)
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{
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cfw_stream_close(ptr);
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}
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ssize_t
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cfw_stream_read(void *ptr, void *buf, size_t len)
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{
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CFWStream *stream = ptr;
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ssize_t ret;
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if (stream == NULL || stream->ops == NULL)
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return -1;
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if ((ret = stream->ops->read(stream, buf, len)) < -1)
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ret = -1;
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return ret;
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}
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bool
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cfw_stream_write(void *ptr, const void *buf, size_t len)
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{
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CFWStream *stream = ptr;
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if (stream == NULL || stream->ops == NULL)
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return false;
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return stream->ops->write(stream, buf, len);
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}
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bool
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cfw_stream_write_string(void *ptr, const char *str)
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{
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return cfw_stream_write(ptr, str, strlen(str));
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}
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bool
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cfw_stream_eof(void *ptr)
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{
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CFWStream *stream = ptr;
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if (stream == NULL || stream->ops == NULL)
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return true;
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return stream->ops->eof(stream);
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}
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void
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cfw_stream_close(void *ptr)
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{
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CFWStream *stream = ptr;
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if (stream == NULL || stream->ops == NULL)
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return;
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stream->ops->close(stream);
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}
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static CFWClass class = {
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.name = "CFWStream",
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.size = sizeof(CFWStream),
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.ctor = ctor,
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.dtor = dtor
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};
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CFWClass *cfw_stream = &class;
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