diff options
Diffstat (limited to 'indra/llplugin/slplugin')
| -rw-r--r-- | indra/llplugin/slplugin/slplugin.cpp | 555 |
1 files changed, 268 insertions, 287 deletions
diff --git a/indra/llplugin/slplugin/slplugin.cpp b/indra/llplugin/slplugin/slplugin.cpp index f2925a1fa1..2fe94a3387 100644 --- a/indra/llplugin/slplugin/slplugin.cpp +++ b/indra/llplugin/slplugin/slplugin.cpp @@ -1,287 +1,268 @@ -/** - * @file slplugin.cpp - * @brief Loader shell for plugins, intended to be launched by the plugin host application, which directly loads a plugin dynamic library. - * - * @cond - * - * $LicenseInfo:firstyear=2008&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2010, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - * - * @endcond - */ - - -#include "linden_common.h" - -#include "llpluginprocesschild.h" -#include "llpluginmessage.h" -#include "llerrorcontrol.h" -#include "llapr.h" -#include "llstring.h" - -#include <iostream> -#include <fstream> -using namespace std; - - -#if LL_DARWIN - #include "slplugin-objc.h" -#endif - -#if LL_DARWIN || LL_LINUX - #include <signal.h> -#endif - -/* - On Mac OS, since we call WaitNextEvent, this process will show up in the dock unless we set the LSBackgroundOnly or LSUIElement flag in the Info.plist. - - Normally non-bundled binaries don't have an info.plist file, but it's possible to embed one in the binary by adding this to the linker flags: - - -sectcreate __TEXT __info_plist /path/to/slplugin_info.plist - - which means adding this to the gcc flags: - - -Wl,-sectcreate,__TEXT,__info_plist,/path/to/slplugin_info.plist - - Now that SLPlugin is a bundled app on the Mac, this is no longer necessary (it can just use a regular Info.plist file), but I'm leaving this comment in for posterity. -*/ - -#if LL_DARWIN || LL_LINUX -// Signal handlers to make crashes not show an OS dialog... -static void crash_handler(int sig) -{ - // Just exit cleanly. - // TODO: add our own crash reporting - _exit(1); -} -#endif - -#if LL_WINDOWS -#include <windows.h> -//////////////////////////////////////////////////////////////////////////////// -// Our exception handler - will probably just exit and the host application -// will miss the heartbeat and log the error in the usual fashion. -LONG WINAPI myWin32ExceptionHandler( struct _EXCEPTION_POINTERS* exception_infop ) -{ - //std::cerr << "This plugin (" << __FILE__ << ") - "; - //std::cerr << "intercepted an unhandled exception and will exit immediately." << std::endl; - - // TODO: replace exception handler before we exit? - return EXCEPTION_EXECUTE_HANDLER; -} - -// Taken from : http://blog.kalmbachnet.de/?postid=75 -// The MSVC 2005 CRT forces the call of the default-debugger (normally Dr.Watson) -// even with the other exception handling code. This (terrifying) piece of code -// patches things so that doesn't happen. -LPTOP_LEVEL_EXCEPTION_FILTER WINAPI MyDummySetUnhandledExceptionFilter( - LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter ) -{ - return NULL; -} - -BOOL PreventSetUnhandledExceptionFilter() -{ - // remove the scary stuff that also isn't supported on 64 bit Windows - return TRUE; -} - -//////////////////////////////////////////////////////////////////////////////// -// Hook our exception handler and replace the system one -void initExceptionHandler() -{ - LPTOP_LEVEL_EXCEPTION_FILTER prev_filter; - - // save old exception handler in case we need to restore it at the end - prev_filter = SetUnhandledExceptionFilter( myWin32ExceptionHandler ); - PreventSetUnhandledExceptionFilter(); -} - -bool checkExceptionHandler() -{ - bool ok = true; - LPTOP_LEVEL_EXCEPTION_FILTER prev_filter; - prev_filter = SetUnhandledExceptionFilter(myWin32ExceptionHandler); - - PreventSetUnhandledExceptionFilter(); - - if (prev_filter != myWin32ExceptionHandler) - { - LL_WARNS("AppInit") << "Our exception handler (" << (void *)myWin32ExceptionHandler << ") replaced with " << prev_filter << "!" << LL_ENDL; - ok = false; - } - - if (prev_filter == NULL) - { - ok = FALSE; - if (NULL == myWin32ExceptionHandler) - { - LL_WARNS("AppInit") << "Exception handler uninitialized." << LL_ENDL; - } - else - { - LL_WARNS("AppInit") << "Our exception handler (" << (void *)myWin32ExceptionHandler << ") replaced with NULL!" << LL_ENDL; - } - } - - return ok; -} -#endif - -// If this application on Windows platform is a console application, a console is always -// created which is bad. Making it a Windows "application" via CMake settings but not -// adding any code to explicitly create windows does the right thing. -#if LL_WINDOWS -int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ) -#else -int main(int argc, char **argv) -#endif -{ - - ll_init_apr(); - - // Set up llerror logging - { - LLError::initForApplication(".","."); - LLError::setDefaultLevel(LLError::LEVEL_INFO); -// LLError::setTagLevel("Plugin", LLError::LEVEL_DEBUG); -// LLError::logToFile("slplugin.log"); - } - -#if LL_WINDOWS - if( strlen( lpCmdLine ) == 0 ) - { - LL_ERRS("slplugin") << "usage: " << "SLPlugin" << " launcher_port" << LL_ENDL; - }; - - U32 port = 0; - if(!LLStringUtil::convertToU32(lpCmdLine, port)) - { - LL_ERRS("slplugin") << "port number must be numeric" << LL_ENDL; - }; - - // Insert our exception handler into the system so this plugin doesn't - // display a crash message if something bad happens. The host app will - // see the missing heartbeat and log appropriately. - initExceptionHandler(); -#elif LL_DARWIN || LL_LINUX - if(argc < 2) - { - LL_ERRS("slplugin") << "usage: " << argv[0] << " launcher_port" << LL_ENDL; - } - - U32 port = 0; - if(!LLStringUtil::convertToU32(argv[1], port)) - { - LL_ERRS("slplugin") << "port number must be numeric" << LL_ENDL; - } - - // Catch signals that most kinds of crashes will generate, and exit cleanly so the system crash dialog isn't shown. - signal(SIGILL, &crash_handler); // illegal instruction - signal(SIGFPE, &crash_handler); // floating-point exception - signal(SIGBUS, &crash_handler); // bus error - signal(SIGSEGV, &crash_handler); // segmentation violation - signal(SIGSYS, &crash_handler); // non-existent system call invoked -#endif -# if LL_DARWIN - signal(SIGEMT, &crash_handler); // emulate instruction executed - - LLCocoaPlugin cocoa_interface; - cocoa_interface.setupCocoa(); - cocoa_interface.createAutoReleasePool(); -#endif //LL_DARWIN - - LLPluginProcessChild *plugin = new LLPluginProcessChild(); - - plugin->init(port); - -#if LL_DARWIN - cocoa_interface.deleteAutoReleasePool(); -#endif - - LLTimer timer; - timer.start(); - -#if LL_WINDOWS - checkExceptionHandler(); -#endif - -#if LL_DARWIN - - // If the plugin opens a new window (such as the Flash plugin's fullscreen player), we may need to bring this plugin process to the foreground. - // Use this to track the current frontmost window and bring this process to the front if it changes. - // cocoa_interface.mEventTarget = GetEventDispatcherTarget(); -#endif - while(!plugin->isDone()) - { -#if LL_DARWIN - cocoa_interface.createAutoReleasePool(); -#endif - timer.reset(); - plugin->idle(); -#if LL_DARWIN - { - cocoa_interface.processEvents(); - } -#endif - F64 elapsed = timer.getElapsedTimeF64(); - F64 remaining = plugin->getSleepTime() - elapsed; - - if(remaining <= 0.0f) - { - // We've already used our full allotment. -// LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, not sleeping" << LL_ENDL; - - // Still need to service the network... - plugin->pump(); - } - else - { - -// LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, sleeping for " << remaining * 1000.0f << " ms" << LL_ENDL; -// timer.reset(); - - // This also services the network as needed. - plugin->sleep(remaining); - -// LL_INFOS("slplugin") << "slept for "<< timer.getElapsedTimeF64() * 1000.0f << " ms" << LL_ENDL; - } - - -#if LL_WINDOWS - // More agressive checking of interfering exception handlers. - // Doesn't appear to be required so far - even for plugins - // that do crash with a single call to the intercept - // exception handler such as QuickTime. - //checkExceptionHandler(); -#endif - -#if LL_DARWIN - cocoa_interface.deleteAutoReleasePool(); -#endif - } - delete plugin; - - ll_cleanup_apr(); - - - return 0; -} +/**
+ * @file slplugin.cpp
+ * @brief Loader shell for plugins, intended to be launched by the plugin host application, which directly loads a plugin dynamic library.
+ *
+ * @cond
+ *
+ * $LicenseInfo:firstyear=2008&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ *
+ * @endcond
+ */
+
+
+#include "linden_common.h"
+
+#include "llpluginprocesschild.h"
+#include "llpluginmessage.h"
+#include "llerrorcontrol.h"
+#include "llapr.h"
+#include "llstring.h"
+
+#include <iostream>
+#include <fstream>
+using namespace std;
+
+
+#if LL_DARWIN
+ #include "slplugin-objc.h"
+#endif
+
+#if LL_DARWIN || LL_LINUX
+ #include <signal.h>
+#endif
+
+/*
+ On Mac OS, since we call WaitNextEvent, this process will show up in the dock unless we set the LSBackgroundOnly or LSUIElement flag in the Info.plist.
+
+ Normally non-bundled binaries don't have an info.plist file, but it's possible to embed one in the binary by adding this to the linker flags:
+
+ -sectcreate __TEXT __info_plist /path/to/slplugin_info.plist
+
+ which means adding this to the gcc flags:
+
+ -Wl,-sectcreate,__TEXT,__info_plist,/path/to/slplugin_info.plist
+
+ Now that SLPlugin is a bundled app on the Mac, this is no longer necessary (it can just use a regular Info.plist file), but I'm leaving this comment in for posterity.
+*/
+
+#if LL_DARWIN || LL_LINUX
+// Signal handlers to make crashes not show an OS dialog...
+static void crash_handler(int sig)
+{
+ // Just exit cleanly.
+ // TODO: add our own crash reporting
+ _exit(1);
+}
+#endif
+
+#if LL_WINDOWS
+#include <windows.h>
+////////////////////////////////////////////////////////////////////////////////
+// Our exception handler - will probably just exit and the host application
+// will miss the heartbeat and log the error in the usual fashion.
+LONG WINAPI myWin32ExceptionHandler( struct _EXCEPTION_POINTERS* exception_infop )
+{
+ //std::cerr << "This plugin (" << __FILE__ << ") - ";
+ //std::cerr << "intercepted an unhandled exception and will exit immediately." << std::endl;
+
+ // TODO: replace exception handler before we exit?
+ return EXCEPTION_EXECUTE_HANDLER;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Hook our exception handler and replace the system one
+void initExceptionHandler()
+{
+ LPTOP_LEVEL_EXCEPTION_FILTER prev_filter;
+
+ // save old exception handler in case we need to restore it at the end
+ prev_filter = SetUnhandledExceptionFilter( myWin32ExceptionHandler );
+}
+
+bool checkExceptionHandler()
+{
+ bool ok = true;
+ LPTOP_LEVEL_EXCEPTION_FILTER prev_filter;
+ prev_filter = SetUnhandledExceptionFilter(myWin32ExceptionHandler);
+
+ if (prev_filter != myWin32ExceptionHandler)
+ {
+ LL_WARNS("AppInit") << "Our exception handler (" << (void *)myWin32ExceptionHandler << ") replaced with " << prev_filter << "!" << LL_ENDL;
+ ok = false;
+ }
+
+ if (prev_filter == nullptr)
+ {
+ ok = false;
+ if (nullptr == myWin32ExceptionHandler)
+ {
+ LL_WARNS("AppInit") << "Exception handler uninitialized." << LL_ENDL;
+ }
+ else
+ {
+ LL_WARNS("AppInit") << "Our exception handler (" << (void *)myWin32ExceptionHandler << ") replaced with NULL!" << LL_ENDL;
+ }
+ }
+
+ return ok;
+}
+#endif
+
+// If this application on Windows platform is a console application, a console is always
+// created which is bad. Making it a Windows "application" via CMake settings but not
+// adding any code to explicitly create windows does the right thing.
+#if LL_WINDOWS
+int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow )
+#else
+int main(int argc, char **argv)
+#endif
+{
+
+ ll_init_apr();
+
+ // Set up llerror logging
+ {
+ LLError::initForApplication(".",".");
+ LLError::setDefaultLevel(LLError::LEVEL_INFO);
+// LLError::setTagLevel("Plugin", LLError::LEVEL_DEBUG);
+// LLError::logToFile("slplugin.log");
+ }
+
+#if LL_WINDOWS
+ if( strlen( lpCmdLine ) == 0 )
+ {
+ LL_ERRS("slplugin") << "usage: " << "SLPlugin" << " launcher_port" << LL_ENDL;
+ };
+
+ U32 port = 0;
+ if(!LLStringUtil::convertToU32(lpCmdLine, port))
+ {
+ LL_ERRS("slplugin") << "port number must be numeric" << LL_ENDL;
+ };
+
+ // Insert our exception handler into the system so this plugin doesn't
+ // display a crash message if something bad happens. The host app will
+ // see the missing heartbeat and log appropriately.
+ initExceptionHandler();
+#elif LL_DARWIN || LL_LINUX
+ if(argc < 2)
+ {
+ LL_ERRS("slplugin") << "usage: " << argv[0] << " launcher_port" << LL_ENDL;
+ }
+
+ U32 port = 0;
+ if(!LLStringUtil::convertToU32(argv[1], port))
+ {
+ LL_ERRS("slplugin") << "port number must be numeric" << LL_ENDL;
+ }
+
+ // Catch signals that most kinds of crashes will generate, and exit cleanly so the system crash dialog isn't shown.
+ signal(SIGILL, &crash_handler); // illegal instruction
+ signal(SIGFPE, &crash_handler); // floating-point exception
+ signal(SIGBUS, &crash_handler); // bus error
+ signal(SIGSEGV, &crash_handler); // segmentation violation
+ signal(SIGSYS, &crash_handler); // non-existent system call invoked
+#endif
+# if LL_DARWIN
+ signal(SIGEMT, &crash_handler); // emulate instruction executed
+
+ LLCocoaPlugin cocoa_interface;
+ cocoa_interface.setupCocoa();
+ cocoa_interface.createAutoReleasePool();
+#endif //LL_DARWIN
+
+ LLPluginProcessChild *plugin = new LLPluginProcessChild();
+
+ plugin->init(port);
+
+#if LL_DARWIN
+ cocoa_interface.deleteAutoReleasePool();
+#endif
+
+ LLTimer timer;
+ timer.start();
+
+#if LL_WINDOWS
+ checkExceptionHandler();
+#endif
+
+#if LL_DARWIN
+
+ // If the plugin opens a new window (such as the Flash plugin's fullscreen player), we may need to bring this plugin process to the foreground.
+ // Use this to track the current frontmost window and bring this process to the front if it changes.
+ // cocoa_interface.mEventTarget = GetEventDispatcherTarget();
+#endif
+ while(!plugin->isDone())
+ {
+#if LL_DARWIN
+ cocoa_interface.createAutoReleasePool();
+#endif
+ timer.reset();
+ plugin->idle();
+#if LL_DARWIN
+ {
+ cocoa_interface.processEvents();
+ }
+#endif
+ F64 elapsed = timer.getElapsedTimeF64();
+ F64 remaining = plugin->getSleepTime() - elapsed;
+
+ if(remaining <= 0.0)
+ {
+ // We've already used our full allotment.
+// LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, not sleeping" << LL_ENDL;
+
+ // Still need to service the network...
+ plugin->pump();
+ }
+ else
+ {
+
+// LL_INFOS("slplugin") << "elapsed = " << elapsed * 1000.0f << " ms, remaining = " << remaining * 1000.0f << " ms, sleeping for " << remaining * 1000.0f << " ms" << LL_ENDL;
+// timer.reset();
+
+ // This also services the network as needed.
+ plugin->sleep(remaining);
+
+// LL_INFOS("slplugin") << "slept for "<< timer.getElapsedTimeF64() * 1000.0f << " ms" << LL_ENDL;
+ }
+
+
+#if LL_WINDOWS
+ // More agressive checking of interfering exception handlers.
+ // Doesn't appear to be required so far - even for plugins
+ // that do crash with a single call to the intercept
+ // exception handler such as QuickTime.
+ //checkExceptionHandler();
+#endif
+
+#if LL_DARWIN
+ cocoa_interface.deleteAutoReleasePool();
+#endif
+ }
+ delete plugin;
+
+ ll_cleanup_apr();
+
+
+ return 0;
+}
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