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https://github.com/arvidn/libtorrent.git
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arvidn
133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
/*
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Copyright (c) 2018, Alden Torres
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Copyright (c) 2020, zywo
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Copyright (c) 2010, 2014-2018, 2020-2022, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "libtorrent/config.hpp"
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#include "libtorrent/platform_util.hpp"
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#include <cstdint>
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#include <limits>
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#if TORRENT_HAS_PTHREAD_SET_NAME
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#include <pthread.h>
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#ifdef TORRENT_BSD
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#include <pthread_np.h>
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#endif
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#endif
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#ifdef TORRENT_BEOS
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#include <kernel/OS.h>
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#endif
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#include "libtorrent/aux_/disable_warnings_push.hpp"
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#if TORRENT_USE_RLIMIT
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#include <sys/resource.h>
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// capture this here where warnings are disabled (the macro generates warnings)
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const rlim_t rlimit_as = RLIMIT_AS;
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const rlim_t rlimit_nofile = RLIMIT_NOFILE;
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const rlim_t rlim_infinity = RLIM_INFINITY;
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#endif // TORRENT_USE_RLIMIT
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#ifdef TORRENT_BSD
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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#if defined TORRENT_WINDOWS
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#include "libtorrent/aux_/windows.hpp"
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#include "libtorrent/aux_/win_util.hpp"
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#endif
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#include "libtorrent/aux_/disable_warnings_pop.hpp"
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namespace libtorrent {
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int max_open_files()
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{
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#if defined TORRENT_BUILD_SIMULATOR
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return 256;
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#elif TORRENT_USE_RLIMIT
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int const inf = 10000000;
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struct rlimit rl{};
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if (getrlimit(RLIMIT_NOFILE, &rl) == 0)
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{
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if (rl.rlim_cur == rlim_infinity) return inf;
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return rl.rlim_cur <= static_cast<rlim_t>(inf)
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? static_cast<int>(rl.rlim_cur) : inf;
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}
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return 1024;
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#else
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// this seems like a reasonable limit for windows.
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// http://blogs.msdn.com/b/oldnewthing/archive/2007/07/18/3926581.aspx
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return 10000;
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#endif
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}
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void set_thread_name(char const* name)
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{
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TORRENT_UNUSED(name);
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#if TORRENT_HAS_PTHREAD_SET_NAME
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#ifdef TORRENT_BSD
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pthread_set_name_np(pthread_self(), name);
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#else
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pthread_setname_np(pthread_self(), name);
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#endif
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#endif
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#ifdef TORRENT_WINDOWS
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using SetThreadDescription_t = HRESULT (WINAPI*)(HANDLE, PCWSTR);
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auto SetThreadDescription =
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aux::get_library_procedure<aux::kernel32, SetThreadDescription_t>("SetThreadDescription");
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if (SetThreadDescription) {
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wchar_t wide_name[50];
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int i = -1;
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do {
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++i;
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wide_name[i] = name[i];
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} while (name[i] != 0);
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SetThreadDescription(GetCurrentThread(), wide_name);
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}
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#endif
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#ifdef TORRENT_BEOS
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rename_thread(find_thread(nullptr), name);
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#endif
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}
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}
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