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@ -40,75 +40,65 @@ enum BindFlags {
@@ -40,75 +40,65 @@ enum BindFlags {
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// Shutdown
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//
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void ExitTimeout(void* parg) |
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{ |
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#ifdef WIN32 |
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MilliSleep(5000); |
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ExitProcess(0); |
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#endif |
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} |
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//
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// Thread management and startup/shutdown:
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//
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// The network-processing threads are all part of a thread group
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// created by AppInit() or the Qt main() function.
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//
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// A clean exit happens when StartShutdown() or the SIGTERM
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// signal handler sets fRequestShutdown, which triggers
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// the DetectShutdownThread(), which interrupts the main thread group.
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// DetectShutdownThread() then exits, which causes AppInit() to
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// continue (it .joins the shutdown thread).
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// Shutdown() is then
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// called to clean up database connections, and stop other
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// threads that should only be stopped after the main network-processing
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// threads have exited.
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//
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// Note that if running -daemon the parent process returns from AppInit2
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// before adding any threads to the threadGroup, so .join_all() returns
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// immediately and the parent exits from main().
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//
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// Shutdown for Qt is very similar, only it uses a QTimer to detect
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// fRequestShutdown getting set (either by RPC stop or SIGTERM)
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// and then does the normal Qt shutdown thing.
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//
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volatile bool fRequestShutdown = false; |
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void StartShutdown() |
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{ |
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#ifdef QT_GUI |
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// ensure we leave the Qt main loop for a clean GUI exit (Shutdown() is called in bitcoin.cpp afterwards)
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uiInterface.QueueShutdown(); |
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#else |
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// Without UI, Shutdown() can simply be started in a new thread
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NewThread(Shutdown, NULL); |
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#endif |
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fRequestShutdown = true; |
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} |
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static CCoinsViewDB *pcoinsdbview; |
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void Shutdown(void* parg) |
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void Shutdown() |
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{ |
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static CCriticalSection cs_Shutdown; |
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static bool fTaken; |
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TRY_LOCK(cs_Shutdown, lockShutdown); |
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if (!lockShutdown) return; |
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// Make this thread recognisable as the shutdown thread
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RenameThread("bitcoin-shutoff"); |
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nTransactionsUpdated++; |
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StopRPCThreads(); |
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bitdb.Flush(false); |
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StopNode(); |
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{ |
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fShutdown = true; |
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fRequestShutdown = true; |
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nTransactionsUpdated++; |
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StopRPCThreads(); |
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bitdb.Flush(false); |
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StopNode(); |
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{ |
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LOCK(cs_main); |
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if (pblocktree) |
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pblocktree->Flush(); |
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if (pcoinsTip) |
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pcoinsTip->Flush(); |
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delete pcoinsTip; |
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delete pcoinsdbview; |
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delete pblocktree; |
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} |
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bitdb.Flush(true); |
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boost::filesystem::remove(GetPidFile()); |
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UnregisterWallet(pwalletMain); |
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delete pwalletMain; |
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NewThread(ExitTimeout, NULL); |
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MilliSleep(50); |
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printf("Bitcoin exited\n\n"); |
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fExit = true; |
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#ifndef QT_GUI |
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// ensure non-UI client gets exited here, but let Bitcoin-Qt reach 'return 0;' in bitcoin.cpp
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exit(0); |
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#endif |
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} |
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else |
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{ |
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while (!fExit) |
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MilliSleep(500); |
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MilliSleep(100); |
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ExitThread(0); |
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LOCK(cs_main); |
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if (pblocktree) |
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pblocktree->Flush(); |
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if (pcoinsTip) |
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pcoinsTip->Flush(); |
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delete pcoinsTip; pcoinsTip = NULL; |
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delete pcoinsdbview; pcoinsdbview = NULL; |
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delete pblocktree; pblocktree = NULL; |
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} |
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bitdb.Flush(true); |
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boost::filesystem::remove(GetPidFile()); |
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UnregisterWallet(pwalletMain); |
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delete pwalletMain; |
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} |
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//
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@ -116,9 +106,13 @@ void Shutdown(void* parg)
@@ -116,9 +106,13 @@ void Shutdown(void* parg)
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//
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void DetectShutdownThread(boost::thread_group* threadGroup) |
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{ |
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while (fRequestShutdown == false) |
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// Tell the main threads to shutdown.
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while (!fRequestShutdown) |
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{ |
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MilliSleep(200); |
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threadGroup->interrupt_all(); |
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if (fRequestShutdown) |
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threadGroup->interrupt_all(); |
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} |
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} |
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void HandleSIGTERM(int) |
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@ -143,6 +137,8 @@ void HandleSIGHUP(int)
@@ -143,6 +137,8 @@ void HandleSIGHUP(int)
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bool AppInit(int argc, char* argv[]) |
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{ |
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boost::thread_group threadGroup; |
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boost::thread* detectShutdownThread = NULL; |
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bool fRet = false; |
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try |
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{ |
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@ -154,7 +150,7 @@ bool AppInit(int argc, char* argv[])
@@ -154,7 +150,7 @@ bool AppInit(int argc, char* argv[])
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if (!boost::filesystem::is_directory(GetDataDir(false))) |
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{ |
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fprintf(stderr, "Error: Specified directory does not exist\n"); |
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Shutdown(NULL); |
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Shutdown(); |
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} |
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ReadConfigFile(mapArgs, mapMultiArgs); |
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@ -184,7 +180,31 @@ bool AppInit(int argc, char* argv[])
@@ -184,7 +180,31 @@ bool AppInit(int argc, char* argv[])
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int ret = CommandLineRPC(argc, argv); |
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exit(ret); |
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} |
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#if !defined(WIN32) |
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fDaemon = GetBoolArg("-daemon"); |
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if (fDaemon) |
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{ |
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// Daemonize
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pid_t pid = fork(); |
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if (pid < 0) |
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{ |
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fprintf(stderr, "Error: fork() returned %d errno %d\n", pid, errno); |
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return false; |
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} |
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if (pid > 0) // Parent process, pid is child process id
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{ |
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CreatePidFile(GetPidFile(), pid); |
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return true; |
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} |
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// Child process falls through to rest of initialization
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pid_t sid = setsid(); |
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if (sid < 0) |
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fprintf(stderr, "Error: setsid() returned %d errno %d\n", sid, errno); |
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} |
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#endif |
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detectShutdownThread = new boost::thread(boost::bind(&DetectShutdownThread, &threadGroup)); |
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fRet = AppInit2(threadGroup); |
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} |
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catch (std::exception& e) { |
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@ -192,12 +212,20 @@ bool AppInit(int argc, char* argv[])
@@ -192,12 +212,20 @@ bool AppInit(int argc, char* argv[])
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} catch (...) { |
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PrintExceptionContinue(NULL, "AppInit()"); |
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} |
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if (!fRet) |
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if (!fRet) { |
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if (detectShutdownThread) |
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detectShutdownThread->interrupt(); |
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threadGroup.interrupt_all(); |
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} |
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if (detectShutdownThread) |
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{ |
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Shutdown(NULL); |
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threadGroup.interrupt_all(); |
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threadGroup.join_all(); |
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detectShutdownThread->join(); |
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delete detectShutdownThread; |
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detectShutdownThread = NULL; |
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} |
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Shutdown(); |
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return fRet; |
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} |
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@ -214,7 +242,7 @@ int main(int argc, char* argv[])
@@ -214,7 +242,7 @@ int main(int argc, char* argv[])
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if (fRet && fDaemon) |
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return 0; |
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return 1; |
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return (fRet ? 0 : 1); |
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} |
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#endif |
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@ -302,7 +330,7 @@ std::string HelpMessage()
@@ -302,7 +330,7 @@ std::string HelpMessage()
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" -rpcport=<port> " + _("Listen for JSON-RPC connections on <port> (default: 8332 or testnet: 18332)") + "\n" + |
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" -rpcallowip=<ip> " + _("Allow JSON-RPC connections from specified IP address") + "\n" + |
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" -rpcconnect=<ip> " + _("Send commands to node running on <ip> (default: 127.0.0.1)") + "\n" + |
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" -rpcthreads=<n> " + _("Use this mean threads to service RPC calls (default: 4)") + "\n" + |
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" -rpcthreads=<n> " + _("Use this many threads to service RPC calls (default: 4)") + "\n" + |
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" -blocknotify=<cmd> " + _("Execute command when the best block changes (%s in cmd is replaced by block hash)") + "\n" + |
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" -walletnotify=<cmd> " + _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)") + "\n" + |
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" -alertnotify=<cmd> " + _("Execute command when a relevant alert is received (%s in cmd is replaced by message)") + "\n" + |
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@ -440,8 +468,6 @@ bool AppInit2(boost::thread_group& threadGroup)
@@ -440,8 +468,6 @@ bool AppInit2(boost::thread_group& threadGroup)
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sigaction(SIGHUP, &sa_hup, NULL); |
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#endif |
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threadGroup.create_thread(boost::bind(&DetectShutdownThread, &threadGroup)); |
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// ********************************************************* Step 2: parameter interactions
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fTestNet = GetBoolArg("-testnet"); |
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@ -499,12 +525,6 @@ bool AppInit2(boost::thread_group& threadGroup)
@@ -499,12 +525,6 @@ bool AppInit2(boost::thread_group& threadGroup)
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else |
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fDebugNet = GetBoolArg("-debugnet"); |
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#if !defined(WIN32) && !defined(QT_GUI) |
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fDaemon = GetBoolArg("-daemon"); |
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#else |
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fDaemon = false; |
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#endif |
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if (fDaemon) |
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fServer = true; |
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else |
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@ -552,28 +572,6 @@ bool AppInit2(boost::thread_group& threadGroup)
@@ -552,28 +572,6 @@ bool AppInit2(boost::thread_group& threadGroup)
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if (!lock.try_lock()) |
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return InitError(strprintf(_("Cannot obtain a lock on data directory %s. Bitcoin is probably already running."), strDataDir.c_str())); |
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#if !defined(WIN32) && !defined(QT_GUI) |
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if (fDaemon) |
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{ |
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// Daemonize
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pid_t pid = fork(); |
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if (pid < 0) |
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{ |
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fprintf(stderr, "Error: fork() returned %d errno %d\n", pid, errno); |
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return false; |
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} |
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if (pid > 0) |
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{ |
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CreatePidFile(GetPidFile(), pid); |
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return true; |
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} |
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pid_t sid = setsid(); |
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if (sid < 0) |
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fprintf(stderr, "Error: setsid() returned %d errno %d\n", sid, errno); |
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} |
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#endif |
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if (GetBoolArg("-shrinkdebugfile", !fDebug)) |
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ShrinkDebugFile(); |
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printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"); |
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@ -1011,8 +1009,7 @@ bool AppInit2(boost::thread_group& threadGroup)
@@ -1011,8 +1009,7 @@ bool AppInit2(boost::thread_group& threadGroup)
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printf("mapWallet.size() = %"PRIszu"\n", pwalletMain->mapWallet.size()); |
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printf("mapAddressBook.size() = %"PRIszu"\n", pwalletMain->mapAddressBook.size()); |
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if (!NewThread(StartNode, (void*)&threadGroup)) |
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InitError(_("Error: could not start node")); |
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StartNode(threadGroup); |
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if (fServer) |
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StartRPCThreads(); |
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@ -1030,12 +1027,8 @@ bool AppInit2(boost::thread_group& threadGroup)
@@ -1030,12 +1027,8 @@ bool AppInit2(boost::thread_group& threadGroup)
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// Add wallet transactions that aren't already in a block to mapTransactions
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pwalletMain->ReacceptWalletTransactions(); |
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#if !defined(QT_GUI) |
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// Loop until process is exit()ed from shutdown() function,
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// called from ThreadRPCServer thread when a "stop" command is received.
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while (1) |
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MilliSleep(5000); |
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#endif |
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// Run a thread to flush wallet periodically
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threadGroup.create_thread(boost::bind(&ThreadFlushWalletDB, boost::ref(pwalletMain->strWalletFile))); |
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return true; |
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return !fRequestShutdown; |
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} |
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Gavin Andresen
12 years ago