gecko-dev/js/jsd/jsd_hook.c

102 строки
2.8 KiB
C

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
** JavaScript Debugger Navigator API - Hook support
*/
#include "jsd.h"
JSTrapStatus PR_CALLBACK
jsd_InterruptHandler(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval,
void *closure)
{
PRUintn hookanswer = JSD_HOOK_RETURN_CONTINUE;
JSDThreadState* jsdthreadstate;
JSDScript* jsdscript;
JSDContext* jsdc = (JSDContext*) closure;
if( jsd_IsCurrentThreadDangerous() )
return JSTRAP_CONTINUE;
if( ! jsdc || ! jsdc->inited )
return JSTRAP_CONTINUE;
jsd_JSContextUsed(jsdc, cx);
if( ! jsdc->interruptHook )
return JSTRAP_CONTINUE;
jsdscript = jsd_FindJSDScript(jsdc, script);
if( ! jsdscript )
return JSTRAP_CONTINUE;
jsdthreadstate = jsd_NewThreadState(jsdc,cx);
if( jsdthreadstate )
{
hookanswer =
(*jsdc->interruptHook)(jsdc, jsdthreadstate,
JSD_HOOK_INTERRUPTED,
jsdc->interruptHookData );
jsd_DestroyThreadState(jsdc, jsdthreadstate);
}
*rval = NULL; /* XXX fix this!!! */
if( JSD_HOOK_RETURN_ABORT == hookanswer )
return JSTRAP_ERROR;
return JSTRAP_CONTINUE; /* XXX fix this!!! */
}
JSBool
jsd_SetInterruptHook(JSDContext* jsdc,
JSD_ExecutionHookProc hook,
void* callerdata)
{
jsdc->interruptHook = hook;
jsdc->interruptHookData = callerdata;
return JS_SetInterrupt(jsdc->jstaskstate, jsd_InterruptHandler, (void*) jsdc);
}
JSBool
jsd_ClearInterruptHook(JSDContext* jsdc)
{
jsdc->interruptHook = NULL;
return JS_ClearInterrupt(jsdc->jstaskstate, NULL, NULL );
}
JSBool
jsd_SetDebugBreakHook(JSDContext* jsdc,
JSD_ExecutionHookProc hook,
void* callerdata)
{
jsdc->debugBreakHook = hook;
jsdc->debugBreakHookData = callerdata;
return JS_TRUE;
}
JSBool
jsd_ClearDebugBreakHook(JSDContext* jsdc)
{
jsdc->debugBreakHook = NULL;
return JS_TRUE;
}