1 files changed, 410 insertions, 0 deletions
diff --git a/toolkit/components/osfile/modules/osfile_unix_allthreads.jsm b/toolkit/components/osfile/modules/osfile_unix_allthreads.jsm
new file mode 100644
index 0000000000..189d80e29f
--- /dev/null
+++ b/toolkit/components/osfile/modules/osfile_unix_allthreads.jsm
@@ -0,0 +1,410 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/**
+ * This module defines the thread-agnostic components of the Unix version
+ * of OS.File. It depends on the thread-agnostic cross-platform components
+ * of OS.File.
+ *
+ * It serves the following purposes:
+ * - open libc;
+ * - define OS.Unix.Error;
+ * - define a few constants and types that need to be defined on all platforms.
+ *
+ * This module can be:
+ * - opened from the main thread as a jsm module;
+ * - opened from a chrome worker through require().
+ */
+
+/* eslint-env node */
+
+"use strict";
+
+var SharedAll;
+if (typeof Components != "undefined") {
+  // Module is opened as a jsm module
+  const { ctypes } = ChromeUtils.import("resource://gre/modules/ctypes.jsm");
+  // eslint-disable-next-line mozilla/reject-global-this
+  this.ctypes = ctypes;
+
+  SharedAll = ChromeUtils.import(
+    "resource://gre/modules/osfile/osfile_shared_allthreads.jsm"
+  );
+  // eslint-disable-next-line mozilla/reject-global-this
+  this.exports = {};
+} else if (typeof module != "undefined" && typeof require != "undefined") {
+  // Module is loaded with require()
+  SharedAll = require("resource://gre/modules/osfile/osfile_shared_allthreads.jsm");
+} else {
+  throw new Error(
+    "Please open this module with Component.utils.import or with require()"
+  );
+}
+
+SharedAll.LOG.bind(SharedAll, "Unix", "allthreads");
+var Const = SharedAll.Constants.libc;
+
+// Open libc
+var libc = new SharedAll.Library(
+  "libc",
+  "libc.so",
+  "libSystem.B.dylib",
+  "a.out"
+);
+exports.libc = libc;
+
+// Define declareFFI
+var declareFFI = SharedAll.declareFFI.bind(null, libc);
+exports.declareFFI = declareFFI;
+
+// Define lazy binding
+var LazyBindings = {};
+libc.declareLazy(
+  LazyBindings,
+  "strerror",
+  "strerror",
+  ctypes.default_abi,
+  /* return*/ ctypes.char.ptr,
+  /* errnum*/ ctypes.int
+);
+
+/**
+ * A File-related error.
+ *
+ * To obtain a human-readable error message, use method |toString|.
+ * To determine the cause of the error, use the various |becauseX|
+ * getters. To determine the operation that failed, use field
+ * |operation|.
+ *
+ * Additionally, this implementation offers a field
+ * |unixErrno|, which holds the OS-specific error
+ * constant. If you need this level of detail, you may match the value
+ * of this field against the error constants of |OS.Constants.libc|.
+ *
+ * @param {string=} operation The operation that failed. If unspecified,
+ * the name of the calling function is taken to be the operation that
+ * failed.
+ * @param {number=} lastError The OS-specific constant detailing the
+ * reason of the error. If unspecified, this is fetched from the system
+ * status.
+ * @param {string=} path The file path that manipulated. If unspecified,
+ * assign the empty string.
+ *
+ * @constructor
+ * @extends {OS.Shared.Error}
+ */
+var OSError = function OSError(
+  operation = "unknown operation",
+  errno = ctypes.errno,
+  path = ""
+) {
+  SharedAll.OSError.call(this, operation, path);
+  this.unixErrno = errno;
+};
+OSError.prototype = Object.create(SharedAll.OSError.prototype);
+OSError.prototype.toString = function toString() {
+  return (
+    "Unix error " +
+    this.unixErrno +
+    " during operation " +
+    this.operation +
+    (this.path ? " on file " + this.path : "") +
+    " (" +
+    LazyBindings.strerror(this.unixErrno).readStringReplaceMalformed() +
+    ")"
+  );
+};
+OSError.prototype.toMsg = function toMsg() {
+  return OSError.toMsg(this);
+};
+
+/**
+ * |true| if the error was raised because a file or directory
+ * already exists, |false| otherwise.
+ */
+Object.defineProperty(OSError.prototype, "becauseExists", {
+  get: function becauseExists() {
+    return this.unixErrno == Const.EEXIST;
+  },
+});
+/**
+ * |true| if the error was raised because a file or directory
+ * does not exist, |false| otherwise.
+ */
+Object.defineProperty(OSError.prototype, "becauseNoSuchFile", {
+  get: function becauseNoSuchFile() {
+    return this.unixErrno == Const.ENOENT;
+  },
+});
+
+/**
+ * |true| if the error was raised because a directory is not empty
+ * does not exist, |false| otherwise.
+ */
+Object.defineProperty(OSError.prototype, "becauseNotEmpty", {
+  get: function becauseNotEmpty() {
+    return this.unixErrno == Const.ENOTEMPTY;
+  },
+});
+/**
+ * |true| if the error was raised because a file or directory
+ * is closed, |false| otherwise.
+ */
+Object.defineProperty(OSError.prototype, "becauseClosed", {
+  get: function becauseClosed() {
+    return this.unixErrno == Const.EBADF;
+  },
+});
+/**
+ * |true| if the error was raised because permission is denied to
+ * access a file or directory, |false| otherwise.
+ */
+Object.defineProperty(OSError.prototype, "becauseAccessDenied", {
+  get: function becauseAccessDenied() {
+    return this.unixErrno == Const.EACCES;
+  },
+});
+/**
+ * |true| if the error was raised because some invalid argument was passed,
+ * |false| otherwise.
+ */
+Object.defineProperty(OSError.prototype, "becauseInvalidArgument", {
+  get: function becauseInvalidArgument() {
+    return this.unixErrno == Const.EINVAL;
+  },
+});
+
+/**
+ * Serialize an instance of OSError to something that can be
+ * transmitted across threads (not necessarily a string).
+ */
+OSError.toMsg = function toMsg(error) {
+  return {
+    exn: "OS.File.Error",
+    fileName: error.moduleName,
+    lineNumber: error.lineNumber,
+    stack: error.moduleStack,
+    operation: error.operation,
+    unixErrno: error.unixErrno,
+    path: error.path,
+  };
+};
+
+/**
+ * Deserialize a message back to an instance of OSError
+ */
+OSError.fromMsg = function fromMsg(msg) {
+  let error = new OSError(msg.operation, msg.unixErrno, msg.path);
+  error.stack = msg.stack;
+  error.fileName = msg.fileName;
+  error.lineNumber = msg.lineNumber;
+  return error;
+};
+exports.Error = OSError;
+
+/**
+ * Code shared by implementations of File.Info on Unix
+ *
+ * @constructor
+ */
+var AbstractInfo = function AbstractInfo(
+  path,
+  isDir,
+  isSymLink,
+  size,
+  lastAccessDate,
+  lastModificationDate,
+  unixLastStatusChangeDate,
+  unixOwner,
+  unixGroup,
+  unixMode
+) {
+  this._path = path;
+  this._isDir = isDir;
+  this._isSymlLink = isSymLink;
+  this._size = size;
+  this._lastAccessDate = lastAccessDate;
+  this._lastModificationDate = lastModificationDate;
+  this._unixLastStatusChangeDate = unixLastStatusChangeDate;
+  this._unixOwner = unixOwner;
+  this._unixGroup = unixGroup;
+  this._unixMode = unixMode;
+};
+
+AbstractInfo.prototype = {
+  /**
+   * The path of the file, used for error-reporting.
+   *
+   * @type {string}
+   */
+  get path() {
+    return this._path;
+  },
+  /**
+   * |true| if this file is a directory, |false| otherwise
+   */
+  get isDir() {
+    return this._isDir;
+  },
+  /**
+   * |true| if this file is a symbolink link, |false| otherwise
+   */
+  get isSymLink() {
+    return this._isSymlLink;
+  },
+  /**
+   * The size of the file, in bytes.
+   *
+   * Note that the result may be |NaN| if the size of the file cannot be
+   * represented in JavaScript.
+   *
+   * @type {number}
+   */
+  get size() {
+    return this._size;
+  },
+  /**
+   * The date of last access to this file.
+   *
+   * Note that the definition of last access may depend on the
+   * underlying operating system and file system.
+   *
+   * @type {Date}
+   */
+  get lastAccessDate() {
+    return this._lastAccessDate;
+  },
+  /**
+   * Return the date of last modification of this file.
+   */
+  get lastModificationDate() {
+    return this._lastModificationDate;
+  },
+  /**
+   * Return the date at which the status of this file was last modified
+   * (this is the date of the latest write/renaming/mode change/...
+   * of the file)
+   */
+  get unixLastStatusChangeDate() {
+    return this._unixLastStatusChangeDate;
+  },
+  /*
+   * Return the Unix owner of this file
+   */
+  get unixOwner() {
+    return this._unixOwner;
+  },
+  /*
+   * Return the Unix group of this file
+   */
+  get unixGroup() {
+    return this._unixGroup;
+  },
+  /*
+   * Return the Unix group of this file
+   */
+  get unixMode() {
+    return this._unixMode;
+  },
+};
+exports.AbstractInfo = AbstractInfo;
+
+/**
+ * Code shared by implementations of File.DirectoryIterator.Entry on Unix
+ *
+ * @constructor
+ */
+var AbstractEntry = function AbstractEntry(isDir, isSymLink, name, path) {
+  this._isDir = isDir;
+  this._isSymlLink = isSymLink;
+  this._name = name;
+  this._path = path;
+};
+
+AbstractEntry.prototype = {
+  /**
+   * |true| if the entry is a directory, |false| otherwise
+   */
+  get isDir() {
+    return this._isDir;
+  },
+  /**
+   * |true| if the entry is a directory, |false| otherwise
+   */
+  get isSymLink() {
+    return this._isSymlLink;
+  },
+  /**
+   * The name of the entry
+   * @type {string}
+   */
+  get name() {
+    return this._name;
+  },
+  /**
+   * The full path to the entry
+   */
+  get path() {
+    return this._path;
+  },
+};
+exports.AbstractEntry = AbstractEntry;
+
+// Special constants that need to be defined on all platforms
+
+exports.POS_START = Const.SEEK_SET;
+exports.POS_CURRENT = Const.SEEK_CUR;
+exports.POS_END = Const.SEEK_END;
+
+// Special types that need to be defined for communication
+// between threads
+var Type = Object.create(SharedAll.Type);
+exports.Type = Type;
+
+/**
+ * Native paths
+ *
+ * Under Unix, expressed as C strings
+ */
+Type.path = Type.cstring.withName("[in] path");
+Type.out_path = Type.out_cstring.withName("[out] path");
+
+// Special constructors that need to be defined on all threads
+OSError.closed = function closed(operation, path) {
+  return new OSError(operation, Const.EBADF, path);
+};
+
+OSError.exists = function exists(operation, path) {
+  return new OSError(operation, Const.EEXIST, path);
+};
+
+OSError.noSuchFile = function noSuchFile(operation, path) {
+  return new OSError(operation, Const.ENOENT, path);
+};
+
+OSError.invalidArgument = function invalidArgument(operation) {
+  return new OSError(operation, Const.EINVAL);
+};
+
+var EXPORTED_SYMBOLS = [
+  "declareFFI",
+  "libc",
+  "Error",
+  "AbstractInfo",
+  "AbstractEntry",
+  "Type",
+  "POS_START",
+  "POS_CURRENT",
+  "POS_END",
+];
+
+// ////////// Boilerplate
+if (typeof Components != "undefined") {
+  // eslint-disable-next-line mozilla/reject-global-this
+  this.EXPORTED_SYMBOLS = EXPORTED_SYMBOLS;
+  for (let symbol of EXPORTED_SYMBOLS) {
+    // eslint-disable-next-line mozilla/reject-global-this
+    this[symbol] = exports[symbol];
+  }
+}