/usr/include/firefox/jsxdrapi.h is in firefox-dev 11.0+build1-0ubuntu4.
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* vim: set ts=8 sw=4 et tw=78:
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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 Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef jsxdrapi_h___
#define jsxdrapi_h___
/*
* JS external data representation interface API.
*
* The XDR system is comprised of three major parts:
*
* - the state serialization/deserialization APIs, which allow consumers
* of the API to serialize JS runtime state (script bytecodes, atom maps,
* object graphs, etc.) for later restoration. These portions
* are implemented in various appropriate files, such as jsscript.c
* for the script portions and jsobj.c for object state.
* - the callback APIs through which the runtime requests an opaque
* representation of a native object, and through which the runtime
* constructs a live native object from an opaque representation. These
* portions are the responsibility of the native object implementor.
* - utility functions for en/decoding of primitive types, such as
* JSStrings. This portion is implemented in jsxdrapi.c.
*
* Spiritually guided by Sun's XDR, where appropriate.
*/
#include "jspubtd.h"
#include "jsprvtd.h"
JS_BEGIN_EXTERN_C
/* We use little-endian byteorder for all encoded data */
#if defined IS_LITTLE_ENDIAN
#define JSXDR_SWAB32(x) x
#define JSXDR_SWAB16(x) x
#elif defined IS_BIG_ENDIAN
#define JSXDR_SWAB32(x) (((uint32_t)(x) >> 24) | \
(((uint32_t)(x) >> 8) & 0xff00) | \
(((uint32_t)(x) << 8) & 0xff0000) | \
((uint32_t)(x) << 24))
#define JSXDR_SWAB16(x) (((uint16_t)(x) >> 8) | ((uint16_t)(x) << 8))
#else
#error "unknown byte order"
#endif
#define JSXDR_ALIGN 4
typedef enum JSXDRMode {
JSXDR_ENCODE,
JSXDR_DECODE
} JSXDRMode;
typedef enum JSXDRWhence {
JSXDR_SEEK_SET,
JSXDR_SEEK_CUR,
JSXDR_SEEK_END
} JSXDRWhence;
typedef struct JSXDROps {
JSBool (*get32)(JSXDRState *, uint32_t *);
JSBool (*set32)(JSXDRState *, uint32_t *);
JSBool (*getbytes)(JSXDRState *, char *, uint32_t);
JSBool (*setbytes)(JSXDRState *, char *, uint32_t);
void * (*raw)(JSXDRState *, uint32_t);
JSBool (*seek)(JSXDRState *, int32_t, JSXDRWhence);
uint32_t (*tell)(JSXDRState *);
void (*finalize)(JSXDRState *);
} JSXDROps;
struct JSXDRState;
namespace js {
class XDRScriptState {
public:
XDRScriptState(JSXDRState *x);
~XDRScriptState();
JSXDRState *xdr;
const char *filename;
bool filenameSaved;
};
} /* namespace JS */
struct JSXDRState {
JSXDRMode mode;
JSXDROps *ops;
JSContext *cx;
JSClass **registry;
uintN numclasses;
uintN maxclasses;
void *reghash;
void *userdata;
JSScript *script;
js::XDRScriptState *state;
};
extern JS_PUBLIC_API(void)
JS_XDRInitBase(JSXDRState *xdr, JSXDRMode mode, JSContext *cx);
extern JS_PUBLIC_API(JSXDRState *)
JS_XDRNewMem(JSContext *cx, JSXDRMode mode);
extern JS_PUBLIC_API(void *)
JS_XDRMemGetData(JSXDRState *xdr, uint32_t *lp);
extern JS_PUBLIC_API(void)
JS_XDRMemSetData(JSXDRState *xdr, void *data, uint32_t len);
extern JS_PUBLIC_API(uint32_t)
JS_XDRMemDataLeft(JSXDRState *xdr);
extern JS_PUBLIC_API(void)
JS_XDRMemResetData(JSXDRState *xdr);
extern JS_PUBLIC_API(void)
JS_XDRDestroy(JSXDRState *xdr);
extern JS_PUBLIC_API(JSBool)
JS_XDRUint8(JSXDRState *xdr, uint8_t *b);
extern JS_PUBLIC_API(JSBool)
JS_XDRUint16(JSXDRState *xdr, uint16_t *s);
extern JS_PUBLIC_API(JSBool)
JS_XDRUint32(JSXDRState *xdr, uint32_t *lp);
extern JS_PUBLIC_API(JSBool)
JS_XDRBytes(JSXDRState *xdr, char *bytes, uint32_t len);
extern JS_PUBLIC_API(JSBool)
JS_XDRCString(JSXDRState *xdr, char **sp);
extern JS_PUBLIC_API(JSBool)
JS_XDRCStringOrNull(JSXDRState *xdr, char **sp);
extern JS_PUBLIC_API(JSBool)
JS_XDRString(JSXDRState *xdr, JSString **strp);
extern JS_PUBLIC_API(JSBool)
JS_XDRStringOrNull(JSXDRState *xdr, JSString **strp);
extern JS_PUBLIC_API(JSBool)
JS_XDRDouble(JSXDRState *xdr, jsdouble *dp);
extern JS_PUBLIC_API(JSBool)
JS_XDRValue(JSXDRState *xdr, jsval *vp);
extern JS_PUBLIC_API(JSBool)
JS_XDRFunctionObject(JSXDRState *xdr, JSObject **objp);
extern JS_PUBLIC_API(JSBool)
JS_XDRScript(JSXDRState *xdr, JSScript **scriptp);
extern JS_PUBLIC_API(JSBool)
JS_XDRRegisterClass(JSXDRState *xdr, JSClass *clasp, uint32_t *lp);
extern JS_PUBLIC_API(uint32_t)
JS_XDRFindClassIdByName(JSXDRState *xdr, const char *name);
extern JS_PUBLIC_API(JSClass *)
JS_XDRFindClassById(JSXDRState *xdr, uint32_t id);
/*
* Magic numbers.
*/
#define JSXDR_MAGIC_SCRIPT_1 0xdead0001
#define JSXDR_MAGIC_SCRIPT_2 0xdead0002
#define JSXDR_MAGIC_SCRIPT_3 0xdead0003
#define JSXDR_MAGIC_SCRIPT_4 0xdead0004
#define JSXDR_MAGIC_SCRIPT_5 0xdead0005
#define JSXDR_MAGIC_SCRIPT_6 0xdead0006
#define JSXDR_MAGIC_SCRIPT_7 0xdead0007
#define JSXDR_MAGIC_SCRIPT_8 0xdead0008
#define JSXDR_MAGIC_SCRIPT_9 0xdead0009
#define JSXDR_MAGIC_SCRIPT_10 0xdead000a
#define JSXDR_MAGIC_SCRIPT_11 0xdead000b
#define JSXDR_MAGIC_SCRIPT_12 0xdead000c
#define JSXDR_MAGIC_SCRIPT_CURRENT JSXDR_MAGIC_SCRIPT_12
/*
* Bytecode version number. Increment the subtrahend whenever JS bytecode
* changes incompatibly.
*
* This version number is XDR'd near the front of xdr bytecode and
* aborts deserialization if there is a mismatch between the current
* and saved versions. If deserialization fails, the data should be
* invalidated if possible.
*/
#define JSXDR_BYTECODE_VERSION (0xb973c0de - 99)
/*
* Library-private functions.
*/
extern JSBool
js_XDRAtom(JSXDRState *xdr, JSAtom **atomp);
JS_END_EXTERN_C
#endif /* ! jsxdrapi_h___ */
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