00001 /* vim: set sw=4 sts=4 et foldmethod=syntax : */ 00002 00003 /* 00004 * Copyright (c) 2007, 2008 Ciaran McCreesh 00005 * 00006 * This file is part of the Paludis package manager. Paludis is free software; 00007 * you can redistribute it and/or modify it under the terms of the GNU General 00008 * Public License version 2, as published by the Free Software Foundation. 00009 * 00010 * Paludis is distributed in the hope that it will be useful, but WITHOUT ANY 00011 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00012 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 00013 * details. 00014 * 00015 * You should have received a copy of the GNU General Public License along with 00016 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple 00017 * Place, Suite 330, Boston, MA 02111-1307 USA 00018 */ 00019 00020 #ifndef PALUDIS_GUARD_PALUDIS_UTIL_THREAD_POOL_HH 00021 #define PALUDIS_GUARD_PALUDIS_UTIL_THREAD_POOL_HH 1 00022 00023 #include <paludis/util/attributes.hh> 00024 #include <paludis/util/private_implementation_pattern.hh> 00025 #include <tr1/functional> 00026 00027 /** \file 00028 * Declarations for the ThreadPool class. 00029 * 00030 * \ingroup g_threads 00031 * 00032 * \section Examples 00033 * 00034 * - None at this time. 00035 */ 00036 namespace paludis 00037 { 00038 /** 00039 * A thread pool holds a number of related threads. 00040 * 00041 * \ingroup g_threads 00042 * \nosubgrouping 00043 * \since 0.26 00044 */ 00045 class PALUDIS_VISIBLE ThreadPool : 00046 private PrivateImplementationPattern<ThreadPool> 00047 { 00048 public: 00049 ///\name Basic operations 00050 ///\{ 00051 00052 ThreadPool(); 00053 ~ThreadPool(); 00054 00055 ///\} 00056 00057 /** 00058 * Create a new thread in our pool. 00059 */ 00060 void create_thread(const std::tr1::function<void () throw ()> &); 00061 00062 /** 00063 * How many threads does our pool contain? 00064 */ 00065 unsigned number_of_threads() const; 00066 }; 00067 } 00068 00069 #endif