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/* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Mobile Application Link.
*
* The Initial Developer of the Original Code is AvantGo, Inc.
* Portions created by AvantGo, Inc. are Copyright (C) 1997-1999
* AvantGo, Inc. All Rights Reserved.
*
* Contributor(s):
*/
// Owner: linus
#include <AGWriter.h>
#include <AGUtil.h>
ExportFunc AGWriter *AGWriterNew(void *out, AGWriteFunc writeFunc)
{
AGWriter *w;
w = (AGWriter *)malloc(sizeof(AGWriter));
return AGWriterInit(w, out, writeFunc);
}
ExportFunc AGWriter *AGWriterInit(AGWriter *w, void *out, AGWriteFunc writeFunc)
{
bzero(w, sizeof(*w));
w->out = out;
w->writeFunc = writeFunc;
return w;
}
ExportFunc void AGWriterFinalize(AGWriter *w)
{
bzero(w, sizeof(*w));
}
ExportFunc void AGWriterFree(AGWriter *w)
{
AGWriterFinalize(w);
free(w);
}
ExportFunc void AGWriteCompactInt(AGWriter *w, uint32 val)
{
if (val <= 253) {
AGWriteInt8(w, (uint8)val);
} else if (val >= 254 && val < (((uint32)1) << 16)) {
AGWriteInt8(w, 254);
AGWriteInt16(w, (uint16)val);
} else {
AGWriteInt8(w, 255);
AGWriteInt32(w, val);
}
}
ExportFunc void AGWriteInt32(AGWriter *w, uint32 val)
{
uint8 buf[4];
buf[0] = (val >> 24) & 0xff;
buf[1] = (val >> 16) & 0xff;
buf[2] = (val >> 8) & 0xff;
buf[3] = val & 0xff;
AGWriteBytes(w, buf, 4);
}
ExportFunc void AGWriteInt24(AGWriter *w, uint32 val)
{
uint8 buf[3];
buf[0] = (val >> 16) & 0xff;
buf[1] = (val >> 8) & 0xff;
buf[2] = val & 0xff;
AGWriteBytes(w, buf, 3);
}
ExportFunc void AGWriteInt16(AGWriter *w, uint16 val)
{
uint8 buf[2];
buf[0] = (val >> 8) & 0xff;
buf[1] = val & 0xff;
AGWriteBytes(w, buf, 2);
}
ExportFunc void AGWriteInt8(AGWriter *w, uint8 val)
{
uint8 buf[1];
int32 count;
if (w->err) {
return;
}
buf[0] = val & 0xff;
if (w->writeFunc != NULL) {
count = (*w->writeFunc)(w->out, buf, 1);
if (count != 1) {
w->err = -1;
return;
}
}
w->totalBytesWritten++;
}
ExportFunc void AGWriteBoolean(AGWriter *w, AGBool value)
{
if (value)
AGWriteInt8(w, 1);
else
AGWriteInt8(w, 0);
}
ExportFunc uint32 AGWriteBytes(AGWriter *w, void *buf, int32 len)
{
int32 count, origLen;
if (w->err) {
return -1;
}
origLen = len;
if (w->writeFunc != NULL) {
while (len > 0) {
count = (*w->writeFunc)(w->out, buf, len);
if (count <= 0) {
w->err = -1;
return -1;
}
len -= count;
buf = ((uint8 *)buf) + count;
}
}
w->totalBytesWritten += origLen;
return origLen;
}
ExportFunc void AGWriteString(AGWriter *w, char *str, int32 len)
{
if (len < 0 || str == NULL) {
len = 0;
}
AGWriteCompactInt(w, len);
if (len > 0) {
AGWriteBytes(w, str, len);
}
}
ExportFunc void AGWriteCString(AGWriter *w, char *str)
{
if (str == NULL) {
AGWriteInt8(w, 0);
return;
} else {
AGWriteBytes(w, str, strlen(str)+1);
}
}
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