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88 lines
2.3 KiB
88 lines
2.3 KiB
/**
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* \file
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* Write ready responses to an output stream.
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*
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* \author Georg Hopp
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*
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* \copyright
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* Copyright © 2012 Georg Hopp
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __HTTP_WRITER_H__
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#define __HTTP_WRITER_H__
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#include <sys/types.h>
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#include "class.h"
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#include "http/message.h"
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#include "queue.h"
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#include "cbuf.h"
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#include "stream.h"
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#include "commons.h"
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/*
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* the buffer that will be written back to an http client.
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* If we have open 1024 paralell connection this will result
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* in a memory usage of 128MB. Right now, we don't allow more
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* than this amount of paralell connections.
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*
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* This one and the parser buffer are the hugest memory pools
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* we need. The parser buffer is of the same size.
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*
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* Right now only the ringbuffer is reused for each connection
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* resulting in some memory movement between some temporary
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* space and the circular buffer.
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*
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* This behavioru should be kept in place for low memory machines
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* running this code.
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*
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* Anyway, I will build a version which uses two ringbuffers for
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* each connection, Resulting in a 256KB memory used for each
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* connection. Which in turn means 256MB for 1024 paralell connections.
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*
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* And as I will also implement a cbuf pool, this memory will not be
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* freed before application end.
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*/
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#define WRITER_MAX_BUF 131072
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typedef enum e_HttpWriterState {
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HTTP_WRITER_GET=0,
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HTTP_WRITER_WRITE,
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HTTP_WRITER_DONE
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} HttpWriterState;
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CLASS(HttpWriter) {
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Cbuf buffer;
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Bool ourLock;
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Queue queue;
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HttpMessage current;
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size_t nheader;
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size_t nbody;
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size_t written;
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HttpWriterState state;
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};
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ssize_t httpWriterWrite(void *, Stream);
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#endif // __HTTP_WRITER_H__
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// vim: set ts=4 sw=4:
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