diff options
| -rw-r--r-- | src/httpserver.cpp | 30 | ||||
| -rw-r--r-- | src/httpserver.h | 2 | ||||
| -rw-r--r-- | src/init.cpp | 2 |
3 files changed, 22 insertions, 12 deletions
diff --git a/src/httpserver.cpp b/src/httpserver.cpp index 8698abb900..424ef015c8 100644 --- a/src/httpserver.cpp +++ b/src/httpserver.cpp @@ -438,15 +438,17 @@ bool InitHTTPServer() return true; } -bool StartHTTPServer(boost::thread_group& threadGroup) +boost::thread threadHTTP; + +bool StartHTTPServer() { LogPrint("http", "Starting HTTP server\n"); int rpcThreads = std::max((long)GetArg("-rpcthreads", DEFAULT_HTTP_THREADS), 1L); LogPrintf("HTTP: starting %d worker threads\n", rpcThreads); - threadGroup.create_thread(boost::bind(&ThreadHTTP, eventBase, eventHTTP)); + threadHTTP = boost::thread(boost::bind(&ThreadHTTP, eventBase, eventHTTP)); for (int i = 0; i < rpcThreads; i++) - threadGroup.create_thread(boost::bind(&HTTPWorkQueueRun, workQueue)); + boost::thread(boost::bind(&HTTPWorkQueueRun, workQueue)); return true; } @@ -461,13 +463,6 @@ void InterruptHTTPServer() // Reject requests on current connections evhttp_set_gencb(eventHTTP, http_reject_request_cb, NULL); } - if (eventBase) { - // Force-exit event loop after predefined time - struct timeval tv; - tv.tv_sec = 10; - tv.tv_usec = 0; - event_base_loopexit(eventBase, &tv); - } if (workQueue) workQueue->Interrupt(); } @@ -480,6 +475,20 @@ void StopHTTPServer() workQueue->WaitExit(); delete workQueue; } + if (eventBase) { + LogPrint("http", "Waiting for HTTP event thread to exit\n"); + // Give event loop a few seconds to exit (to send back last RPC responses), then break it + // Before this was solved with event_base_loopexit, but that didn't work as expected in + // at least libevent 2.0.21 and always introduced a delay. In libevent + // master that appears to be solved, so in the future that solution + // could be used again (if desirable). + // (see discussion in https://github.com/bitcoin/bitcoin/pull/6990) + if (!threadHTTP.try_join_for(boost::chrono::milliseconds(2000))) { + LogPrintf("HTTP event loop did not exit within allotted time, sending loopbreak\n"); + event_base_loopbreak(eventBase); + threadHTTP.join(); + } + } if (eventHTTP) { evhttp_free(eventHTTP); eventHTTP = 0; @@ -488,6 +497,7 @@ void StopHTTPServer() event_base_free(eventBase); eventBase = 0; } + LogPrint("http", "Stopped HTTP server\n"); } struct event_base* EventBase() diff --git a/src/httpserver.h b/src/httpserver.h index b377dc19fc..20a119cc5c 100644 --- a/src/httpserver.h +++ b/src/httpserver.h @@ -28,7 +28,7 @@ bool InitHTTPServer(); * This is separate from InitHTTPServer to give users race-condition-free time * to register their handlers between InitHTTPServer and StartHTTPServer. */ -bool StartHTTPServer(boost::thread_group& threadGroup); +bool StartHTTPServer(); /** Interrupt HTTP server threads */ void InterruptHTTPServer(); /** Stop HTTP server */ diff --git a/src/init.cpp b/src/init.cpp index 5f2dc8bf2f..b58c47a940 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -661,7 +661,7 @@ bool AppInitServers(boost::thread_group& threadGroup) return false; if (GetBoolArg("-rest", false) && !StartREST()) return false; - if (!StartHTTPServer(threadGroup)) + if (!StartHTTPServer()) return false; return true; } |