зеркало из https://github.com/mozilla/gecko-dev.git
294 строки
8.1 KiB
C++
294 строки
8.1 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1994-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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/*
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* See <http://developer.apple.com/technotes/tn/tn1070.html> for information about BOAs
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*
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*/
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#include <AppleEvents.h>
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#include <Gestalt.h>
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#include <Errors.h>
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#include <LowMem.h>
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#include "prthread.h"
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#include "prinit.h"
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#include "prlog.h"
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#include "serv.h"
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#include "dataconn.h"
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#include "macshell.h"
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#define kSleepMax 20
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static PRBool gQuitFlag;
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static long gSleepVal;
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//----------------------------------------------------------------------------
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PRBool GetQuitFlag()
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{
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return gQuitFlag;
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}
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//----------------------------------------------------------------------------
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void SetQuitFlag(PRBool quitNow)
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{
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gQuitFlag = quitNow;
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}
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// Apple event handlers to be installed
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//----------------------------------------------------------------------------
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static pascal OSErr DoAEOpenApplication(AppleEvent * theAppleEvent, AppleEvent * replyAppleEvent, long refCon)
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{
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return noErr;
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}
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//----------------------------------------------------------------------------
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static pascal OSErr DoAEOpenDocuments(AppleEvent * theAppleEvent, AppleEvent * replyAppleEvent, long refCon)
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{
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return errAEEventNotHandled;
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}
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//----------------------------------------------------------------------------
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static pascal OSErr DoAEPrintDocuments(AppleEvent * theAppleEvent, AppleEvent * replyAppleEvent, long refCon)
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{
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return errAEEventNotHandled;
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}
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//----------------------------------------------------------------------------
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static pascal OSErr DoAEQuitApplication(AppleEvent * theAppleEvent, AppleEvent * replyAppleEvent, long refCon)
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{
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gQuitFlag = PR_TRUE;
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return noErr;
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}
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// install Apple event handlers
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//----------------------------------------------------------------------------
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static void InitAppleEventsStuff(void)
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{
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OSErr err;
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err = AEInstallEventHandler(kCoreEventClass, kAEOpenApplication, NewAEEventHandlerProc(DoAEOpenApplication), 0, false);
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if (err == noErr)
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err = AEInstallEventHandler(kCoreEventClass, kAEOpenDocuments, NewAEEventHandlerProc(DoAEOpenDocuments), 0, false);
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if (err == noErr)
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err = AEInstallEventHandler(kCoreEventClass, kAEPrintDocuments, NewAEEventHandlerProc(DoAEPrintDocuments), 0, false);
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if (err == noErr)
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err = AEInstallEventHandler(kCoreEventClass, kAEQuitApplication, NewAEEventHandlerProc(DoAEQuitApplication), 0, false);
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#if DEBUG
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if (err != noErr)
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DebugStr("\pInstall event handler failed");
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#endif
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}
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// high-level event dispatching
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//----------------------------------------------------------------------------
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static void DoHighLevelEvent(EventRecord * theEventRecPtr)
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{
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(void) AEProcessAppleEvent(theEventRecPtr);
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}
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#pragma mark -
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//----------------------------------------------------------------------------
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// Increase the space allocated for the background only application stack.
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//
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// Warning: SetApplLimit always sets the stack to at least as large as the
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// default stack for the machine (8K on machines with original QuickDraw,
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// 24K on machines with Color QuickDraw), so the application partition
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// must be large enough to accommodate an appropriate stack and heap.
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// Call this only once, at the beginning of the BOA.
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//
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// Another warning:
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// Don't bother trying to set the stack size to something lower than 24K.
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// If SetApplLimit is called to do this, it will silently lower ApplLimit
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// to a 24K stack. (The limit is 8K on machines without Color QuickDraw.
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// In this sample, we don't allow an increment less than 24K.)
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static OSErr IncreaseBOAStack(Size additionalStackSize)
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{
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OSErr err;
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// Check that we aren't running with a corrupt heap. If we are,
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// fix the problem. This was a bug with FBA's before System 7.5.5.
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// With System Software later than 7.5.5, this "fix" is harmless.
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THz myZone = GetZone();
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if (myZone->bkLim != LMGetHeapEnd())
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LMSetHeapEnd(myZone->bkLim);
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// Increase the stack size by lowering the heap limit.
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SetApplLimit((Ptr) ((unsigned long) GetApplLimit() - additionalStackSize));
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err = MemError();
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if (err == noErr) MaxApplZone();
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return err;
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}
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//----------------------------------------------------------------------------
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static void MemoryInit(long numMasterBlocks)
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{
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IncreaseBOAStack(1024 * 64);
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for (long i = 0; i < numMasterBlocks; i ++)
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MoreMasters();
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}
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#pragma mark -
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//----------------------------------------------------------------------------
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static void DoIdleProcessing()
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{
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PR_Sleep(PR_INTERVAL_NO_WAIT); // give time to NSPR threads
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}
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//----------------------------------------------------------------------------
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static OSErr HandleOneEvent()
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{
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EventRecord theEvent;
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Boolean gotEvent;
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OSErr err = noErr;
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// tweak the sleep time depending on whether cartman is doing anything or not
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gSleepVal = AreConnectionsActive() ? 0 : kSleepMax;
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gotEvent = WaitNextEvent(everyEvent, &theEvent, gSleepVal, nil);
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if (gotEvent)
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{
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switch (theEvent.what)
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{
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case kHighLevelEvent:
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DoHighLevelEvent(&theEvent);
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break;
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}
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}
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else
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{
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DoIdleProcessing();
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}
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return noErr;
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}
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//----------------------------------------------------------------------------
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static void DoApplicationCleanup()
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{
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SSM_KillAllThreads();
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}
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// this is in main.c
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extern void RunMacPSM(void *);
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//----------------------------------------------------------------------------
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static PRIntn DoMainEventLoop(PRIntn argc, char **argv)
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{
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SSM_CreateAndRegisterThread(PR_USER_THREAD,
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RunMacPSM,
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NULL,
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PR_PRIORITY_NORMAL,
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PR_LOCAL_THREAD,
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PR_UNJOINABLE_THREAD, 0);
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// let's let NSPR threads start off
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PR_Sleep(PR_INTERVAL_NO_WAIT); // give time to NSPR threads
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// main event loop
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while (!gQuitFlag)
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{
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OSErr err = HandleOneEvent();
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}
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DoApplicationCleanup();
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return 0;
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}
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//----------------------------------------------------------------------------
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static void DoApplicationSetup()
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{
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char *fakeArgv[] = { NULL, NULL }; // do we need to add the application name in argv[0] ?
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PR_Initialize(DoMainEventLoop, 0, fakeArgv, 0);
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}
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#pragma mark -
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//----------------------------------------------------------------------------
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void main(void)
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{
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// initialize QuickDraw globals. This is the only Toolbox init that we
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// should do for an FBA
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InitGraf(&qd.thePort);
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MemoryInit(10);
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// initialize application globals
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gQuitFlag = PR_FALSE;
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gSleepVal = kSleepMax;
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// is the Apple Event Manager available?
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long gestResponse;
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Boolean haveAppleEvents;
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OSErr err = Gestalt(gestaltAppleEventsAttr, &gestResponse);
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if (err == noErr && (gestResponse & (1 << gestaltAppleEventsPresent)) != 0)
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haveAppleEvents = true;
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if (!haveAppleEvents) return;
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// install Apple event handlers
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InitAppleEventsStuff();
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// setup the app. This calls into NSPR, which calls our DoMainEventLoop() function.
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DoApplicationSetup();
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}
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