dom/quota/test/common/system.js

   1 /**
   2  * Any copyright is dedicated to the Public Domain.
   3  * http://creativecommons.org/publicdomain/zero/1.0/
   4  */
   5
   6 const PR_USEC_PER_SEC = 1000000;
   7
   8 const NS_ERROR_STORAGE_BUSY = Cr.NS_ERROR_STORAGE_BUSY;
   9
  10 loadScript("dom/quota/test/common/global.js");
  11
  12 function getProfileDir() {
  13   return Services.dirsvc.get("ProfD", Ci.nsIFile);
  14 }
  15
  16 // Given a "/"-delimited path relative to a base file (or the profile
  17 // directory if a base file is not provided) return an nsIFile representing the
  18 // path.  This does not test for the existence of the file or parent
  19 // directories.  It is safe even on Windows where the directory separator is
  20 // not "/", but make sure you're not passing in a "\"-delimited path.
  21 function getRelativeFile(relativePath, baseFile) {
  22   if (!baseFile) {
  23     baseFile = getProfileDir();
  24   }
  25
  26   let file = baseFile.clone();
  27
  28   if (Services.appinfo.OS === "WINNT") {
  29     let winFile = file.QueryInterface(Ci.nsILocalFileWin);
  30     winFile.useDOSDevicePathSyntax = true;
  31   }
  32
  33   relativePath.split("/").forEach(function (component) {
  34     if (component == "..") {
  35       file = file.parent;
  36     } else {
  37       file.append(component);
  38     }
  39   });
  40
  41   return file;
  42 }
  43
  44 function getCurrentPrincipal() {
  45   return Cc["@mozilla.org/systemprincipal;1"].createInstance(Ci.nsIPrincipal);
  46 }
  47
  48 function getSimpleDatabase(principal, persistence) {
  49   let connection = Cc["@mozilla.org/dom/sdb-connection;1"].createInstance(
  50     Ci.nsISDBConnection
  51   );
  52
  53   if (!principal) {
  54     principal = getCurrentPrincipal();
  55   }
  56
  57   connection.init(principal, persistence);
  58
  59   return connection;
  60 }
  61
  62 async function requestFinished(request) {
  63   await new Promise(function (resolve) {
  64     request.callback = function () {
  65       resolve();
  66     };
  67   });
  68
  69   if (request.resultCode !== Cr.NS_OK) {
  70     throw new RequestError(request.resultCode, request.resultName);
  71   }
  72
  73   return request.result;
  74 }