gecko-dev/network/cnvts/cvsimple.c
1998-05-19 00:54:09 +00:00

125 lines
2.9 KiB
C

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/**********************************************************************
cvsimple.c
By Daniel Malmer <malmer@netscape.com>
1/14/98
Simple converter that just saves the data in a buffer.
**********************************************************************/
#include "cvsimple.h"
#include "xp.h"
#include "prmem.h"
typedef void (*simple_complete_t)(void* bytes, int32 bytes_written);
typedef struct {
unsigned char* bytes;
int32 bytes_written;
int32 max_bytes;
simple_complete_t complete;
} NET_SimpleStreamData;
/*
* simple_complete
*/
PRIVATE void
simple_complete(NET_StreamClass *stream)
{
NET_SimpleStreamData* obj = (NET_SimpleStreamData*) stream->data_object;
if ( obj && obj->complete ) {
(obj->complete)(obj->bytes, obj->bytes_written);
}
if ( obj && obj->bytes ) PR_Free(obj->bytes);
if ( obj ) PR_Free(obj);
}
/*
* simple_abort
*/
PRIVATE void
simple_abort(NET_StreamClass *stream, int status)
{
NET_SimpleStreamData* obj = (NET_SimpleStreamData*) stream->data_object;
if ( obj && obj->bytes ) PR_Free(obj->bytes);
if ( obj ) PR_Free(obj);
}
/*
* simple_write
*/
PRIVATE int
simple_write(NET_StreamClass *stream, const char* str, int32 len)
{
NET_SimpleStreamData* obj = (NET_SimpleStreamData*) stream->data_object;
if ( obj->bytes_written + len > obj->max_bytes ) {
/* Round to nearest 1024 */
obj->max_bytes = ( ( ( (obj->max_bytes + len) >> 10) + 1) << 10);
obj->bytes = PR_Realloc(obj->bytes, obj->max_bytes);
}
memcpy(obj->bytes + obj->bytes_written, str, len);
obj->bytes_written+= len;
return MK_DATA_LOADED;
}
/*
* simple_write_ready
*/
PRIVATE unsigned int
simple_write_ready(NET_StreamClass *stream)
{
return MAX_WRITE_READY;
}
/*
* NET_SimpleStream
* Simple stream constructor.
*/
MODULE_PRIVATE NET_StreamClass*
NET_SimpleStream(int fmt, void* data_obj, URL_Struct* URL_s, MWContext* w)
{
NET_SimpleStreamData* obj;
if ( (obj = PR_NEWZAP(NET_SimpleStreamData)) == NULL ) {
return NULL;
}
obj->bytes = NULL;
obj->bytes_written = 0;
obj->max_bytes = 0;
obj->complete = (simple_complete_t) data_obj;
return NET_NewStream("SimpleStream", simple_write, simple_complete,
simple_abort, simple_write_ready, obj, w);
}