mojo/public/cpp/utility/thread.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_CPP_UTILITY_THREAD_H_
   6 #define MOJO_PUBLIC_CPP_UTILITY_THREAD_H_
   7
   8 #ifdef _WIN32
   9 #error "Not implemented: See crbug.com/342893."
  10 #endif
  11
  12 #include <pthread.h>
  13 #include <stddef.h>
  14
  15 #include "mojo/public/cpp/system/macros.h"
  16
  17 namespace mojo {
  18
  19 // This class is thread-friendly, not thread-safe (e.g., you mustn't call
  20 // |Join()| from multiple threads and/or simultaneously try to destroy the
  21 // object).
  22 class Thread {
  23  public:
  24   // TODO(vtl): Support non-joinable? priority?
  25   class Options {
  26    public:
  27     Options() : stack_size_(0) {}
  28
  29     // A stack size of 0 means the default.
  30     size_t stack_size() const { return stack_size_; }
  31     void set_stack_size(size_t stack_size) { stack_size_ = stack_size; }
  32
  33    private:
  34     size_t stack_size_;
  35
  36     // Copy and assign allowed.
  37   };
  38
  39   // TODO(vtl): Add name or name prefix?
  40   Thread();
  41   explicit Thread(const Options& options);
  42   virtual ~Thread();
  43
  44   void Start();
  45   void Join();
  46
  47   virtual void Run() = 0;
  48
  49  private:
  50   static void* ThreadRunTrampoline(void* arg);
  51
  52   const Options options_;
  53   pthread_t thread_;
  54   bool started_;
  55   bool joined_;
  56
  57   MOJO_DISALLOW_COPY_AND_ASSIGN(Thread);
  58 };
  59
  60 }  // namespace mojo
  61
  62 #endif  // MOJO_PUBLIC_CPP_UTILITY_THREAD_H_