forked from premiere/premiere-libtorrent
101 lines
3.0 KiB
C++
101 lines
3.0 KiB
C++
/*
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Copyright (c) 2014-2016, Arvid Norberg, Steven Siloti
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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/aux_/session_call.hpp"
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namespace libtorrent { namespace aux {
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#ifdef TORRENT_PROFILE_CALLS
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static mutex g_calls_mutex;
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static boost::unordered_map<std::string, int> g_blocking_calls;
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#endif
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void blocking_call()
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{
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#ifdef TORRENT_PROFILE_CALLS
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char stack[2048];
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print_backtrace(stack, sizeof(stack), 20);
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mutex::scoped_lock l(g_calls_mutex);
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g_blocking_calls[stack] += 1;
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#endif
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}
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void dump_call_profile()
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{
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#ifdef TORRENT_PROFILE_CALLS
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FILE* out = fopen("blocking_calls.txt", "w+");
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std::map<int, std::string> profile;
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mutex::scoped_lock l(g_calls_mutex);
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for (boost::unordered_map<std::string, int>::const_iterator i = g_blocking_calls.begin()
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, end(g_blocking_calls.end()); i != end; ++i)
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{
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profile[i->second] = i->first;
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}
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for (std::map<int, std::string>::const_reverse_iterator i = profile.rbegin()
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, end(profile.rend()); i != end; ++i)
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{
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fprintf(out, "\n\n%d\n%s\n", i->first, i->second.c_str());
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}
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fclose(out);
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#endif
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}
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void fun_wrap(bool& done, condition_variable& e, mutex& m, boost::function<void(void)> f)
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{
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f();
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mutex::scoped_lock l(m);
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done = true;
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e.notify_all();
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}
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void torrent_wait(bool& done, aux::session_impl& ses)
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{
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blocking_call();
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mutex::scoped_lock l(ses.mut);
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while (!done) { ses.cond.wait(l); };
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}
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void sync_call(aux::session_impl& ses, boost::function<void(void)> f)
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{
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bool done = false;
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ses.get_io_service().dispatch(boost::bind(&fun_wrap
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, boost::ref(done)
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, boost::ref(ses.cond)
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, boost::ref(ses.mut)
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, f));
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torrent_wait(done, ses);
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}
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} } // namespace aux namespace libtorrent
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