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add js to tree
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3693 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Brian West
193
libs/js/src/jsxdrapi.h
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193
libs/js/src/jsxdrapi.h
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef jsxdrapi_h___
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#define jsxdrapi_h___
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/*
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* JS external data representation interface API.
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*
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* The XDR system is comprised of three major parts:
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*
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* - the state serialization/deserialization APIs, which allow consumers
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* of the API to serialize JS runtime state (script bytecodes, atom maps,
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* object graphs, etc.) for later restoration. These portions
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* are implemented in various appropriate files, such as jsscript.c
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* for the script portions and jsobj.c for object state.
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* - the callback APIs through which the runtime requests an opaque
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* representation of a native object, and through which the runtime
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* constructs a live native object from an opaque representation. These
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* portions are the responsibility of the native object implementor.
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* - utility functions for en/decoding of primitive types, such as
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* JSStrings. This portion is implemented in jsxdrapi.c.
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*
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* Spiritually guided by Sun's XDR, where appropriate.
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*/
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#include "jspubtd.h"
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#include "jsprvtd.h"
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JS_BEGIN_EXTERN_C
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/* We use little-endian byteorder for all encoded data */
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#if defined IS_LITTLE_ENDIAN
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#define JSXDR_SWAB32(x) x
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#define JSXDR_SWAB16(x) x
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#elif defined IS_BIG_ENDIAN
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#define JSXDR_SWAB32(x) (((uint32)(x) >> 24) | \
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(((uint32)(x) >> 8) & 0xff00) | \
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(((uint32)(x) << 8) & 0xff0000) | \
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((uint32)(x) << 24))
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#define JSXDR_SWAB16(x) (((uint16)(x) >> 8) | ((uint16)(x) << 8))
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#else
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#error "unknown byte order"
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#endif
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#define JSXDR_ALIGN 4
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typedef enum JSXDRMode {
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JSXDR_ENCODE,
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JSXDR_DECODE,
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JSXDR_FREE
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} JSXDRMode;
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typedef enum JSXDRWhence {
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JSXDR_SEEK_SET,
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JSXDR_SEEK_CUR,
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JSXDR_SEEK_END
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} JSXDRWhence;
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typedef struct JSXDROps {
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JSBool (*get32)(JSXDRState *, uint32 *);
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JSBool (*set32)(JSXDRState *, uint32 *);
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JSBool (*getbytes)(JSXDRState *, char *, uint32);
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JSBool (*setbytes)(JSXDRState *, char *, uint32);
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void * (*raw)(JSXDRState *, uint32);
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JSBool (*seek)(JSXDRState *, int32, JSXDRWhence);
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uint32 (*tell)(JSXDRState *);
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void (*finalize)(JSXDRState *);
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} JSXDROps;
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struct JSXDRState {
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JSXDRMode mode;
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JSXDROps *ops;
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JSContext *cx;
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JSClass **registry;
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uintN numclasses;
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uintN maxclasses;
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void *reghash;
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void *userdata;
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};
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extern JS_PUBLIC_API(void)
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JS_XDRInitBase(JSXDRState *xdr, JSXDRMode mode, JSContext *cx);
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extern JS_PUBLIC_API(JSXDRState *)
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JS_XDRNewMem(JSContext *cx, JSXDRMode mode);
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extern JS_PUBLIC_API(void *)
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JS_XDRMemGetData(JSXDRState *xdr, uint32 *lp);
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extern JS_PUBLIC_API(void)
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JS_XDRMemSetData(JSXDRState *xdr, void *data, uint32 len);
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extern JS_PUBLIC_API(uint32)
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JS_XDRMemDataLeft(JSXDRState *xdr);
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extern JS_PUBLIC_API(void)
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JS_XDRMemResetData(JSXDRState *xdr);
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extern JS_PUBLIC_API(void)
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JS_XDRDestroy(JSXDRState *xdr);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRUint8(JSXDRState *xdr, uint8 *b);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRUint16(JSXDRState *xdr, uint16 *s);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRUint32(JSXDRState *xdr, uint32 *lp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRBytes(JSXDRState *xdr, char *bytes, uint32 len);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRCString(JSXDRState *xdr, char **sp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRCStringOrNull(JSXDRState *xdr, char **sp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRString(JSXDRState *xdr, JSString **strp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRStringOrNull(JSXDRState *xdr, JSString **strp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRDouble(JSXDRState *xdr, jsdouble **dp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRValue(JSXDRState *xdr, jsval *vp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRScript(JSXDRState *xdr, JSScript **scriptp);
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extern JS_PUBLIC_API(JSBool)
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JS_XDRRegisterClass(JSXDRState *xdr, JSClass *clasp, uint32 *lp);
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extern JS_PUBLIC_API(uint32)
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JS_XDRFindClassIdByName(JSXDRState *xdr, const char *name);
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extern JS_PUBLIC_API(JSClass *)
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JS_XDRFindClassById(JSXDRState *xdr, uint32 id);
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/*
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* Magic numbers.
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*/
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#define JSXDR_MAGIC_SCRIPT_1 0xdead0001
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#define JSXDR_MAGIC_SCRIPT_2 0xdead0002
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#define JSXDR_MAGIC_SCRIPT_3 0xdead0003
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#define JSXDR_MAGIC_SCRIPT_4 0xdead0004
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#define JSXDR_MAGIC_SCRIPT_CURRENT JSXDR_MAGIC_SCRIPT_4
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JS_END_EXTERN_C
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#endif /* ! jsxdrapi_h___ */
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