зеркало из https://github.com/mozilla/gecko-dev.git
128 строки
3.3 KiB
C
128 строки
3.3 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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* JavaScript Debugger API - Hook support
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*/
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#include "jsd.h"
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JSTrapStatus PR_CALLBACK
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jsd_InterruptHandler(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval,
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void *closure)
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{
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uintN hookanswer = JSD_HOOK_RETURN_CONTINUE;
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JSDThreadState* jsdthreadstate;
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JSDScript* jsdscript;
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JSDContext* jsdc = (JSDContext*) closure;
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if( ! jsdc || ! jsdc->inited )
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return JSTRAP_CONTINUE;
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if( JSD_IS_DANGEROUS_THREAD(jsdc) )
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return JSTRAP_CONTINUE;
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jsd_JSContextUsed(jsdc, cx);
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JSD_LOCK_SCRIPTS(jsdc);
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jsdscript = jsd_FindJSDScript(jsdc, script);
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JSD_UNLOCK_SCRIPTS(jsdc);
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if( ! jsdscript )
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return JSTRAP_CONTINUE;
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#ifdef LIVEWIRE
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if( ! jsdlw_UserCodeAtPC(jsdc, jsdscript, (pruword)pc) )
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return JSTRAP_CONTINUE;
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#endif
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jsdthreadstate = jsd_NewThreadState(jsdc,cx);
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if( jsdthreadstate )
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{
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JSD_ExecutionHookProc hook;
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void* hookData;
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/* local in case jsdc->interruptHook gets cleared on another thread */
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JSD_LOCK();
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hook = jsdc->interruptHook;
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hookData = jsdc->interruptHookData;
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JSD_UNLOCK();
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if(hook)
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hookanswer = hook(jsdc, jsdthreadstate,
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JSD_HOOK_INTERRUPTED, hookData);
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jsd_DestroyThreadState(jsdc, jsdthreadstate);
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}
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*rval = 0; /* XXX extend this */
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if( JSD_HOOK_RETURN_ABORT == hookanswer )
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return JSTRAP_ERROR;
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return JSTRAP_CONTINUE; /* XXX extend this */
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}
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JSBool
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jsd_SetInterruptHook(JSDContext* jsdc,
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JSD_ExecutionHookProc hook,
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void* callerdata)
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{
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JSD_LOCK();
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jsdc->interruptHookData = callerdata;
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jsdc->interruptHook = hook;
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JS_SetInterrupt(jsdc->jstaskstate, jsd_InterruptHandler, (void*) jsdc);
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JSD_UNLOCK();
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return JS_TRUE;
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}
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JSBool
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jsd_ClearInterruptHook(JSDContext* jsdc)
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{
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JSD_LOCK();
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JS_ClearInterrupt(jsdc->jstaskstate, NULL, NULL );
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jsdc->interruptHook = NULL;
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JSD_UNLOCK();
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return JS_TRUE;
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}
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JSBool
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jsd_SetDebugBreakHook(JSDContext* jsdc,
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JSD_ExecutionHookProc hook,
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void* callerdata)
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{
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JSD_LOCK();
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jsdc->debugBreakHookData = callerdata;
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jsdc->debugBreakHook = hook;
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JSD_UNLOCK();
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return JS_TRUE;
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}
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JSBool
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jsd_ClearDebugBreakHook(JSDContext* jsdc)
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{
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JSD_LOCK();
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jsdc->debugBreakHook = NULL;
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JSD_UNLOCK();
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return JS_TRUE;
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}
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