erp5_core: remove unused code

renderJS's mutex must be used instead

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/gadget_global.js.js

@@ -182,115 +182,4 @@
       });
   };
 
-  /** Internal function to prepare gadget to hold a mutex */
-  function ensureLockable(gadget) {
-    if (gadget.props === undefined) {
-      gadget.props = {};
-    }
-    // waiting_line is container of mutexes which already blocks some Promise
-    if (gadget.props.waiting_line === undefined) {
-      gadget.props.waiting_line = [];
-    }
-  }
-
-  /** Synchronously lock gadget and return previous lock's promise.
-
-  NON-RECURSIVE lock! If you lock inside locked execution you will wait forever.
-
-  If used in a Queue (@see lockGadgetInQueue) it blocks when acquiring the lock.
-  */
-  window.lockGadget = function (gadget) {
-    var ahead_of_me;
-    ensureLockable(gadget);
-    // step in line
-    gadget.props.waiting_line.push(RSVP.defer());
-
-    if (gadget.props.waiting_line.length >= 2) {
-      // wait for the promise ahead of me
-      ahead_of_me = gadget.props.waiting_line[gadget.props.waiting_line.length - 2].promise;
-    } else {
-      ahead_of_me = RSVP.resolve();
-    }
-    // return previous lock's Promise to postpone execution
-    return ahead_of_me;
-  };
-
-  /** Lock gadget as a step in RSVP.Queue waiting for previous lock to unlock.
-
-  Use in RSVP.Queue to block execution until manually called `unlockGadget`.
-  Both lock/unlockGadget pass through any value in RSVP.Queue manner.
-  Pass through any value.
-
-  Example:
-    new RSVP.Queue()
-      .push(function () {return some_value;})
-      .push(lockGadgetInQueue(gadget), lockGadgetInFailedQueue(gadget))
-      .push(function (some_value) {return someWork(some_value);})
-      .push(unlockGadgetInQueue(gadget), unlockGadgetInFailedQueue(gadget));
-  */
-  window.lockGadgetInQueue = function (gadget) {
-    // return function to be used in RSVP.Queue
-    return function (pass_through) {
-      return new RSVP.Queue()
-        .push(function () {
-          return window.lockGadget(gadget);
-        })
-        .push(function () {
-          return pass_through;
-        });
-    };
-  };
-  /** Lock Gagdet in Queue but intended to be used in "fail" branch (the second function).
-
-  Rethrows any argument.
-  */
-  window.lockGadgetInFailedQueue = function (gadget) {
-    // return function to be used in RSVP.Queue
-    return function (error) {
-      return new RSVP.Queue()
-        .push(function () {
-          return window.lockGadget(gadget);
-        })
-        .push(function () {
-          throw error;
-        });
-    };
-  };
-
-  /** Synchronously unlock gadget by resolving props.mutex.promise.
-
-  That promise is most likely blocking some RSVP.Queue or is then-ed on another
-  Promise.
-  */
-  window.unlockGadget = function (gadget) {
-    if (gadget.props === undefined ||
-        gadget.props.waiting_line === undefined ||
-        gadget.props.waiting_line.length === 0) {
-      throw new Error("Gadget " + gadget + " is not locked!");
-    }
-    gadget.props.waiting_line.shift().resolve();
-  };
-
-  /** Unlock gadget without blocking as a step in RSVP.Queue.
-
-  Pass through any value. Not re-throwing errors in fail branch!
-
-  For example @see lockGadgetInQueue.
-  */
-  window.unlockGadgetInQueue = function (gadget) {
-    return function (pass_through) {
-      window.unlockGadget(gadget);
-      return pass_through;
-    };
-  };
-
-  /** Unlock gadget without blocking and throw any argument received. */
-  window.unlockGadgetInFailedQueue = function (gadget) {
-    return function (error) {
-      window.unlockGadget(gadget);
-      throw error;
-    };
-  };
-
-
 }(window, RSVP, FileReader));
\ No newline at end of file