116 lines
3.6 KiB
JavaScript
116 lines
3.6 KiB
JavaScript
/* -*- Mode: javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 Firetray
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*
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* The Initial Developer of the Original Code is
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* Mozilla Messaging, Ltd.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Chris Coulson <chris.coulson@canonical.com>
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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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const Cu = Components.utils;
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Cu.import("resource://gre/modules/ctypes.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://firetray/logging.jsm");
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var EXPORTED_SYMBOLS = [ "ctypes_library" ];
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function ctypes_library(name, abis, defines) {
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try {
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LOG("Loading library: " + name);
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var library;
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for each (let abi in abis) {
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let soname = "lib" + name + ".so." + abi.toString();
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LOG("Trying " + soname);
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try {
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library = ctypes.open(soname);
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this.ABI = abi;
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LOG("Successfully loaded " + soname);
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break;
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} catch(e) {
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ERROR(soname+" unfound.");
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}
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}
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this.close = function() {
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library.close();
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this.ABI = -1;
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};
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this.available = function() {
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return this.ABI != -1;
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};
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if (!library) {
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LOG("Failed to load library: " + name);
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this.ABI = -1;
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return;
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}
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var self = this;
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let lib = {
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declare: function() {
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try {
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args = [];
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args.push(arguments[0]);
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args.push(ctypes.default_abi);
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for each (let arg in Array.prototype.slice.call(arguments, 1)) {
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args.push(arg);
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}
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return library.declare.apply(library, args);
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} catch (ex) {
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ERROR("Missing symbol " + arguments[0] + " in library " + name);
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self.ABI = -1;
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return null;
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}
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},
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lazy_bind: function() {
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var args = Array.prototype.slice.call(arguments, 0);
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XPCOMUtils.defineLazyGetter(self, arguments[0], function() {
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return lib.declare.apply(lib, args);
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});
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},
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bind_now: function() {
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self[arguments[0]] = this.declare.apply(this, arguments);
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}
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};
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defines.call(this, lib);
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} catch(e) {
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ERROR(name+" definition error: "+e);
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this.ABI = -1;
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}
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}
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