src/mojo/public/python/src/python_system_helper.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_PUBLIC_PYTHON_SRC_PYTHON_SYSTEM_HELPER_H_
   6 #define MOJO_PUBLIC_PYTHON_SRC_PYTHON_SYSTEM_HELPER_H_
   7
   8 // Python must be the first include, as it defines preprocessor variable without
   9 // checking if they already exist.
  10 #include <Python.h>
  11
  12 #include <map>
  13
  14 #include "mojo/public/c/environment/async_waiter.h"
  15 #include "mojo/public/c/system/types.h"
  16 #include "mojo/public/cpp/bindings/callback.h"
  17 #include "mojo/public/cpp/bindings/lib/shared_ptr.h"
  18
  19 namespace mojo {
  20 namespace python {
  21
  22 // Create a mojo::Closure from a callable python object.
  23 mojo::Closure BuildClosure(PyObject* callable);
  24
  25 class PythonAsyncWaiter {
  26  public:
  27   PythonAsyncWaiter();
  28   ~PythonAsyncWaiter();
  29   MojoAsyncWaitID AsyncWait(MojoHandle handle,
  30                             MojoHandleSignals signals,
  31                             MojoDeadline deadline,
  32                             PyObject* callable);
  33
  34   void CancelWait(MojoAsyncWaitID wait_id);
  35
  36  private:
  37   class AsyncWaiterRunnable;
  38
  39   typedef std::map<MojoAsyncWaitID,
  40                    internal::SharedPtr<mojo::Callback<void(MojoResult)> > >
  41       CallbackMap;
  42
  43   CallbackMap callbacks_;
  44   const MojoAsyncWaiter* async_waiter_;
  45 };
  46
  47 }  // namespace python
  48 }  // namespace mojo
  49
  50 #endif  // MOJO_PUBLIC_PYTHON_SRC_PYTHON_SYSTEM_HELPER_H_