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bug 453157 - using watchdog thread as an alternative to the operation count. r=igor,mrbkap a1.9.0b2=beltzner (CLOSED TREE)

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This commit is contained in:
Andrey Saprykin 2008-11-21 22:58:16 +01:00
parent 24f49eeef4
commit c87e2d80c8
19 changed files with 773 additions and 236 deletions
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6
build/Makefile.in
View File

@ -109,6 +109,12 @@ else
AUTOMATION_PPARGS += -DIS_TEST_BUILD=0
endif
ifeq ($(MOZ_DEBUG), 1)
AUTOMATION_PPARGS += -DIS_DEBUG_BUILD=1
else
AUTOMATION_PPARGS += -DIS_DEBUG_BUILD=0
endif
_LEAKTEST_DIR = $(DEPTH)/_leaktest
_LEAKTEST_FILES = \

6
build/pgo/Makefile.in
View File

@ -114,6 +114,12 @@ else
AUTOMATION_PPARGS += -DIS_TEST_BUILD=0
endif
ifeq ($(MOZ_DEBUG), 1)
AUTOMATION_PPARGS += -DIS_DEBUG_BUILD=1
else
AUTOMATION_PPARGS += -DIS_DEBUG_BUILD=0
endif
automation.py: automation.py.in
$(PYTHON) $(topsrcdir)/config/Preprocessor.py \
$(AUTOMATION_PPARGS) $(DEFINES) $(ACDEFINES) $^ > $@

8
build/pgo/automation.py.in
View File

@ -84,6 +84,7 @@ UNIXISH = not IS_WIN32 and not IS_MAC
#expand DEFAULT_APP = "./" + __BROWSER_PATH__
#expand CERTS_DIR = __CERTS_DIR__
#expand IS_TEST_BUILD = __IS_TEST_BUILD__
#expand IS_DEBUG_BUILD = __IS_DEBUG_BUILD__
###########
# LOGGING #
@ -314,6 +315,13 @@ user_pref("camino.warn_when_closing", false); // Camino-only, harmless to others
"""
prefs.append(part)
# Increase the max script run time 10-fold for debug builds
if (IS_DEBUG_BUILD):
prefs.append("""\
user_pref("dom.max_script_run_time", 100);
user_pref("dom.max_chrome_script_run_time", 200);
""")
locations = readLocations()
# Grant God-power to all the privileged servers on which tests run.

18
dom/src/base/nsJSEnvironment.cpp
View File

@ -850,9 +850,6 @@ PrintWinCodebase(nsGlobalWindow *win)
}
#endif
// The accumulated operation weight before we call MaybeGC
const PRUint32 MAYBE_GC_OPERATION_WEIGHT = 5000 * JS_OPERATION_WEIGHT_BASE;
static void
MaybeGC(JSContext *cx)
{
@ -932,24 +929,24 @@ nsJSContext::DOMOperationCallback(JSContext *cx)
if (nsContentUtils::GetBoolPref("dom.prevent_oom_dialog", PR_FALSE))
return JS_FALSE;
nsCOMPtr<nsIPrompt> prompt = GetPromptFromContext(ctx);
nsXPIDLString title, msg;
rv = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"LowMemoryTitle",
title);
rv |= nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
"LowMemoryMessage",
msg);
//GetStringFromName can return NS_OK and still give NULL string
if (NS_FAILED(rv) || !title || !msg) {
NS_ERROR("Failed to get localized strings.");
return JS_FALSE;
}
prompt->Alert(title, msg);
return JS_FALSE;
}
@ -1236,9 +1233,8 @@ nsJSContext::nsJSContext(JSRuntime *aRuntime) : mGCOnDestruction(PR_TRUE)
nsContentUtils::RegisterPrefCallback(js_options_dot_str,
JSOptionChangedCallback,
this);
::JS_SetOperationCallback(mContext, DOMOperationCallback,
MAYBE_GC_OPERATION_WEIGHT);
::JS_SetOperationCallback(mContext, DOMOperationCallback);
nsContentUtils::XPConnect()->SetWatchdogLimit(mContext, PR_TicksPerSecond()/10);
static JSLocaleCallbacks localeCallbacks =
{

4
dom/src/threads/nsDOMThreadService.cpp
View File

@ -733,8 +733,8 @@ nsDOMThreadService::CreateJSContext()
JS_SetErrorReporter(cx, DOMWorkerErrorReporter);
JS_SetOperationCallback(cx, DOMWorkerOperationCallback,
100 * JS_OPERATION_WEIGHT_BASE);
JS_SetOperationCallback(cx, DOMWorkerOperationCallback);
nsContentUtils::XPConnect()->SetWatchdogLimit(cx, PR_TicksPerSecond()/100);
static JSSecurityCallbacks securityCallbacks = {
nsDOMWorkerSecurityManager::JSCheckAccess,

227
js/src/js.cpp
View File

@ -104,8 +104,9 @@ static size_t gMaxStackSize = 500000;
static jsuword gStackBase;
static size_t gScriptStackQuota = JS_DEFAULT_SCRIPT_STACK_QUOTA;
#if JS_HAS_OPERATION_COUNT
static JSBool gEnableBranchCallback = JS_FALSE;
#endif
static uint32 gBranchCount;
static uint32 gBranchLimit;
@ -117,6 +118,18 @@ FILE *gOutFile = NULL;
static JSBool reportWarnings = JS_TRUE;
static JSBool compileOnly = JS_FALSE;
#if !JS_HAS_OPERATION_COUNT
/*
* Variables to support watchdog thread.
*/
static PRLock *gWatchdogLock;
static PRCondVar *gWatchdogWakeup;
static PRBool gWatchdogRunning;
static PRThread *gWatchdogThread;
static PRIntervalTime gCurrentInterval;
static PRIntervalTime gWatchdogLimit;
#endif
typedef enum JSShellErrNum {
#define MSG_DEF(name, number, count, exception, format) \
name = number,
@ -169,6 +182,7 @@ GetLine(JSContext *cx, char *bufp, FILE *file, const char *prompt) {
return JS_TRUE;
}
#if JS_HAS_OPERATION_COUNT
static JSBool
my_BranchCallback(JSContext *cx, JSScript *script)
{
@ -197,6 +211,132 @@ my_BranchCallback(JSContext *cx, JSScript *script)
#endif
return JS_TRUE;
}
#endif
#if !JS_HAS_OPERATION_COUNT
static void
ShutdownWatchdog()
{
PRThread *t;
PR_Lock(gWatchdogLock);
gWatchdogRunning = PR_FALSE;
t = gWatchdogThread;
gWatchdogThread = NULL;
PR_NotifyCondVar(gWatchdogWakeup);
PR_Unlock(gWatchdogLock);
if (t)
PR_JoinThread(t);
}
static void
WakeupWatchdog()
{
PR_Lock(gWatchdogLock);
if (gWatchdogThread && gWatchdogLimit &&
(gCurrentInterval == PR_INTERVAL_NO_TIMEOUT ||
gCurrentInterval > gWatchdogLimit)) {
PR_NotifyCondVar(gWatchdogWakeup);
}
PR_Unlock(gWatchdogLock);
}
static JSBool
ShellOperationCallback(JSContext *cx)
{
if (gWatchdogLimit) {
fprintf(stderr, "Error: Script is running too long\n");
return JS_FALSE;
}
return JS_TRUE;
}
static void
WatchdogMain(void *arg)
{
JSRuntime *rt = (JSRuntime *) arg;
PRStatus status;
PRBool isRunning;
do {
JSContext *iter = NULL;
JSContext *acx;
JSBool isContextRunning = JS_FALSE;
PRIntervalTime ct = PR_IntervalNow();
PR_Lock(gWatchdogLock);
if (gWatchdogLimit) {
JS_LOCK_GC(rt);
while ((acx = js_ContextIterator(rt, JS_FALSE, &iter))) {
if (acx->requestDepth) {
if (ct - acx->startTime > gWatchdogLimit)
JS_TriggerOperationCallback(acx);
if (!isContextRunning)
isContextRunning = JS_TRUE;
}
}
JS_UNLOCK_GC(rt);
}
gCurrentInterval = (isContextRunning && gWatchdogLimit)
? gWatchdogLimit
: PR_INTERVAL_NO_TIMEOUT;
if (gWatchdogRunning)
status = PR_WaitCondVar(gWatchdogWakeup, gCurrentInterval);
isRunning = gWatchdogRunning;
PR_Unlock(gWatchdogLock);
} while (isRunning && status == PR_SUCCESS);
}
/*
* Get the watchdog limit associated with the watchdog callback.
*/
static PRIntervalTime
GetWatchdogLimit(JSContext *cx)
{
return gWatchdogLimit;
}
/*
* Change the watchdog limit associated with the watchdog callback. This API
* function may be called only when the result of JS_GetOperationCallback(cx)
* is not null.
*/
static JSBool
SetWatchdogLimit(JSContext *cx, PRIntervalTime newWatchdogLimit)
{
if (newWatchdogLimit == gWatchdogLimit)
return JS_TRUE;
gWatchdogLimit = newWatchdogLimit;
/*
* Start a new watchdog thread if it has not been started. If it has been
* started wake up the thread and cause the watchdog rescheduling.
*/
PR_Lock(gWatchdogLock);
if (!gWatchdogThread) {
gWatchdogRunning = PR_TRUE;
gWatchdogThread =
PR_CreateThread(PRThreadType(PR_USER_THREAD),
WatchdogMain,
cx->runtime,
PRThreadPriority(PR_PRIORITY_NORMAL),
PRThreadScope(PR_LOCAL_THREAD),
PRThreadState(PR_JOINABLE_THREAD),
0);
}
PR_Unlock(gWatchdogLock);
if (!gWatchdogThread) {
JS_ReportError(cx, "Failed to create watchdog thread");
return JS_FALSE;
}
WakeupWatchdog();
return JS_TRUE;
}
#endif
static void
SetContextOptions(JSContext *cx)
@ -217,10 +357,12 @@ SetContextOptions(JSContext *cx)
}
JS_SetThreadStackLimit(cx, stackLimit);
JS_SetScriptStackQuota(cx, gScriptStackQuota);
#if JS_HAS_OPERATION_COUNT
if (gEnableBranchCallback) {
JS_SetBranchCallback(cx, my_BranchCallback);
JS_ToggleOptions(cx, JSOPTION_NATIVE_BRANCH_CALLBACK);
}
#endif
}
static void
@ -380,7 +522,9 @@ ProcessArgs(JSContext *cx, JSObject *obj, char **argv, int argc)
break;
}
switch (argv[i][1]) {
#if JS_HAS_OPERATION_COUNT
case 'b':
#endif
case 'c':
case 'f':
case 'e':
@ -471,7 +615,7 @@ extern void js_InitJITStatsClass(JSContext *cx, JSObject *glob);
&jitstats_class, NULL, 0);
#endif
break;
case 'o':
if (++i == argc)
return usage();
@ -501,10 +645,12 @@ extern void js_InitJITStatsClass(JSContext *cx, JSObject *glob);
}
break;
#if JS_HAS_OPERATION_COUNT
case 'b':
gBranchLimit = atoi(argv[++i]);
gEnableBranchCallback = (gBranchLimit != 0);
break;
#endif
case 'c':
/* set stack chunk size */
@ -1451,7 +1597,7 @@ DisassFile(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
JSScript *script;
JSBool ok;
uint32 oldopts;
if (!argc)
return JS_TRUE;
@ -1471,7 +1617,7 @@ DisassFile(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
obj = JS_NewScriptObject(cx, script);
if (!obj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(obj); /* I like to root it, root it. */
ok = Disassemble(cx, obj, 1, rval, rval); /* gross, but works! */
*rval = JSVAL_VOID;
@ -2124,6 +2270,38 @@ ThrowError(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
return JS_FALSE;
}
#if !JS_HAS_OPERATION_COUNT
static JSBool
WatchdogInterval(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
if (argc > 1) {
JS_ReportError(cx, "Wrong number of arguments");
return JS_FALSE;
}
if (argc == 0)
return JS_NewDoubleValue(cx, GetWatchdogLimit(cx), rval);
jsdouble interval;
if (!JS_ValueToNumber(cx, argv[0], &interval))
return JS_FALSE;
/* NB: The next condition take negative values and NaNs into account. */
if (!(interval >= 0.0)) {
JS_ReportError(cx, "Negative or NaN argument value");
return JS_FALSE;
}
if (interval > 1800.0) {
JS_ReportError(cx, "Excessive argument value");
return JS_FALSE;
}
return SetWatchdogLimit(cx, (PRIntervalTime) (interval * PR_TicksPerSecond()));
}
#endif
#define LAZY_STANDARD_CLASSES
/* A class for easily testing the inner/outer object callbacks. */
@ -2684,12 +2862,14 @@ Scatter(JSContext *cx, uintN argc, jsval *vp)
JSBool ok;
jsrefcount rc;
#if JS_HAS_OPERATION_COUNT
if (!gEnableBranchCallback) {
/* Enable the branch callback, for periodic scope-sharing. */
gEnableBranchCallback = JS_TRUE;
JS_SetBranchCallback(cx, my_BranchCallback);
JS_ToggleOptions(cx, JSOPTION_NATIVE_BRANCH_CALLBACK);
}
#endif
sd.lock = NULL;
sd.cvar = NULL;
@ -2865,6 +3045,9 @@ static JSFunctionSpec shell_functions[] = {
JS_FS("stringsAreUTF8", StringsAreUTF8, 0,0,0),
JS_FS("testUTF8", TestUTF8, 1,0,0),
JS_FS("throwError", ThrowError, 0,0,0),
#if !JS_HAS_OPERATION_COUNT
JS_FS("watchint", WatchdogInterval, 1,0,0),
#endif
#ifdef DEBUG
JS_FS("dis", Disassemble, 1,0,0),
JS_FS("disfile", DisassFile, 1,0,0),
@ -2946,6 +3129,11 @@ static const char *const shell_help_messages[] = {
"stringsAreUTF8() Check if strings are UTF-8 encoded",
"testUTF8(mode) Perform UTF-8 tests (modes are 1 to 4)",
"throwError() Throw an error from JS_ReportError",
#if !JS_HAS_OPERATION_COUNT
"watchint(interval) Set watchdog interval to the specified number"
" of seconds. If parameters are not specified it returns watchdog interval"
" in seconds",
#endif
#ifdef DEBUG
"dis([fun]) Disassemble functions into bytecodes",
"disfile('foo.js') Disassemble script file into bytecodes",
@ -3887,7 +4075,14 @@ ContextCallback(JSContext *cx, uintN contextOp)
JS_SetErrorReporter(cx, my_ErrorReporter);
JS_SetVersion(cx, JSVERSION_LATEST);
SetContextOptions(cx);
#if !JS_HAS_OPERATION_COUNT
JS_SetOperationCallback(cx, ShellOperationCallback);
} else if (contextOp == JSCONTEXT_REQUEST_START &&
cx->runtime->state != JSRTS_LANDING) {
WakeupWatchdog();
#endif
}
return JS_TRUE;
}
@ -3934,6 +4129,18 @@ main(int argc, char **argv, char **envp)
rt = JS_NewRuntime(64L * 1024L * 1024L);
if (!rt)
return 1;
#if !JS_HAS_OPERATION_COUNT
gWatchdogLock = JS_NEW_LOCK();
if (!gWatchdogLock)
return 1;
gWatchdogWakeup = JS_NEW_CONDVAR(gWatchdogLock);
if (!gWatchdogWakeup)
return 1;
gWatchdogLimit = 0;
gWatchdogThread = NULL;
#endif
JS_SetContextCallback(rt, ContextCallback);
cx = JS_NewContext(rt, gStackChunkSize);
@ -4043,8 +4250,20 @@ main(int argc, char **argv, char **envp)
JS_EndRequest(cx);
#endif
#if !JS_HAS_OPERATION_COUNT
ShutdownWatchdog();
#endif
#if !JS_HAS_OPERATION_COUNT
if (gWatchdogWakeup)
JS_DESTROY_CONDVAR(gWatchdogWakeup);
if (gWatchdogLock)
JS_DESTROY_LOCK(gWatchdogLock);
#endif
JS_DestroyContext(cx);
JS_DestroyRuntime(rt);
JS_ShutDown();
return result;
}

50
js/src/jsapi.cpp
View File

@ -903,6 +903,7 @@ JS_BeginRequest(JSContext *cx)
{
#ifdef JS_THREADSAFE
JSRuntime *rt;
JSContextCallback cxCallback;
JS_ASSERT(cx->thread->id == js_CurrentThreadId());
if (!cx->requestDepth) {
@ -910,6 +911,9 @@ JS_BeginRequest(JSContext *cx)
/* Wait until the GC is finished. */
rt = cx->runtime;
#if !JS_HAS_OPERATION_COUNT
cx->startTime = PR_IntervalNow();
#endif
JS_LOCK_GC(rt);
/* NB: we use cx->thread here, not js_GetCurrentThread(). */
@ -923,6 +927,16 @@ JS_BeginRequest(JSContext *cx)
cx->requestDepth = 1;
cx->outstandingRequests++;
JS_UNLOCK_GC(rt);
cxCallback = cx->runtime->cxCallback;
if (cxCallback) {
#ifdef DEBUG
JSBool callbackStatus =
#endif
cxCallback(cx, JSCONTEXT_REQUEST_START);
JS_ASSERT(callbackStatus);
}
return;
}
cx->requestDepth++;
@ -983,7 +997,9 @@ JS_EndRequest(JSContext *cx)
rt->requestCount--;
if (rt->requestCount == 0)
JS_NOTIFY_REQUEST_DONE(rt);
#if !JS_HAS_OPERATION_COUNT
cx->startTime = 0;
#endif
JS_UNLOCK_GC(rt);
return;
}
@ -3130,7 +3146,7 @@ DefinePropertyById(JSContext *cx, JSObject *obj, jsid id, jsval value,
attrs, flags, tinyid, NULL);
}
return OBJ_DEFINE_PROPERTY(cx, obj, id, value, getter, setter, attrs,
NULL);
NULL);
}
static JSBool
@ -3807,7 +3823,7 @@ JS_HasUCProperty(JSContext *cx, JSObject *obj,
JSProperty *prop;
CHECK_REQUEST(cx);
ok = LookupUCProperty(cx, obj, name, namelen,
ok = LookupUCProperty(cx, obj, name, namelen,
JSRESOLVE_QUALIFIED | JSRESOLVE_DETECTING,
&obj2, &prop);
if (ok) {
@ -5244,6 +5260,7 @@ JS_CallFunctionValue(JSContext *cx, JSObject *obj, jsval fval, uintN argc,
return ok;
}
#if JS_HAS_OPERATION_COUNT
JS_PUBLIC_API(void)
JS_SetOperationCallback(JSContext *cx, JSOperationCallback callback,
uint32 operationLimit)
@ -5319,6 +5336,33 @@ JS_SetBranchCallback(JSContext *cx, JSBranchCallback cb)
}
return oldcb;
}
#else
JS_PUBLIC_API(void)
JS_SetOperationCallback(JSContext *cx, JSOperationCallback callback)
{
cx->operationCallback = callback;
}
JS_PUBLIC_API(void)
JS_ClearOperationCallback(JSContext *cx)
{
cx->operationCallback = NULL;
}
JS_PUBLIC_API(JSOperationCallback)
JS_GetOperationCallback(JSContext *cx)
{
return cx->operationCallback;
}
#endif
JS_PUBLIC_API(void)
JS_TriggerOperationCallback(JSContext *cx)
{
cx->operationCount = 0;
}
JS_PUBLIC_API(JSBool)
JS_IsRunning(JSContext *cx)

26
js/src/jsapi.h
View File

@ -45,6 +45,7 @@
*/
#include <stddef.h>
#include <stdio.h>
#include "jsversion.h"
#include "js-config.h"
#include "jspubtd.h"
#include "jsutil.h"
@ -2166,6 +2167,13 @@ extern JS_PUBLIC_API(JSBool)
JS_CallFunctionValue(JSContext *cx, JSObject *obj, jsval fval, uintN argc,
jsval *argv, jsval *rval);
extern JS_PUBLIC_API(void)
JS_ClearOperationCallback(JSContext *cx);
extern JS_PUBLIC_API(JSOperationCallback)
JS_GetOperationCallback(JSContext *cx);
#if JS_HAS_OPERATION_COUNT
/*
* The maximum value of the operation limit to pass to JS_SetOperationCallback
* and JS_SetOperationLimit.
@ -2190,12 +2198,6 @@ extern JS_PUBLIC_API(void)
JS_SetOperationCallback(JSContext *cx, JSOperationCallback callback,
uint32 operationLimit);
extern JS_PUBLIC_API(void)
JS_ClearOperationCallback(JSContext *cx);
extern JS_PUBLIC_API(JSOperationCallback)
JS_GetOperationCallback(JSContext *cx);
/*
* Get the operation limit associated with the operation callback. This API
* function may be called only when the result of JS_GetOperationCallback(cx)
@ -2223,6 +2225,18 @@ JS_SetOperationLimit(JSContext *cx, uint32 operationLimit);
*/
extern JS_PUBLIC_API(JSBranchCallback)
JS_SetBranchCallback(JSContext *cx, JSBranchCallback cb);
#else
/*
* Set the operation callback that the engine calls while resetting
* context.
*/
extern JS_PUBLIC_API(void)
JS_SetOperationCallback(JSContext *cx, JSOperationCallback callback);
#endif
extern JS_PUBLIC_API(void)
JS_TriggerOperationCallback(JSContext *cx);
extern JS_PUBLIC_API(JSBool)
JS_IsRunning(JSContext *cx);

18
js/src/jscntxt.cpp
View File

@ -241,7 +241,11 @@ js_NewContext(JSRuntime *rt, size_t stackChunkSize)
memset(cx, 0, sizeof *cx);
cx->runtime = rt;
#if JS_OPERATION_COUNT
JS_ClearOperationCallback(cx);
#else
cx->operationCount = 1;
#endif
cx->debugHooks = &rt->globalDebugHooks;
#if JS_STACK_GROWTH_DIRECTION > 0
cx->stackLimit = (jsuword)-1;
@ -516,7 +520,7 @@ js_ValidContextPointer(JSRuntime *rt, JSContext *cx)
return JS_FALSE;
}
JSContext *
JS_FRIEND_API(JSContext *)
js_ContextIterator(JSRuntime *rt, JSBool unlocked, JSContext **iterp)
{
JSContext *cx = *iterp;
@ -1371,9 +1375,11 @@ js_GetErrorMessage(void *userRef, const char *locale, const uintN errorNumber)
JSBool
js_ResetOperationCount(JSContext *cx)
{
JS_ASSERT(cx->operationCount <= 0);
#if JS_HAS_OPERATION_COUNT
JSScript *script;
JS_ASSERT(cx->operationCount <= 0);
JS_ASSERT(cx->operationLimit > 0);
cx->operationCount = (int32) cx->operationLimit;
@ -1390,5 +1396,13 @@ js_ResetOperationCount(JSContext *cx)
if (script || JS_HAS_OPTION(cx, JSOPTION_NATIVE_BRANCH_CALLBACK))
return ((JSBranchCallback) cx->operationCallback)(cx, script);
}
#else
JSOperationCallback operationCallback;
cx->operationCount = 1;
operationCallback = cx->operationCallback;
if (operationCallback)
return operationCallback(cx);
#endif
return JS_TRUE;
}

52
js/src/jscntxt.h
View File

@ -739,7 +739,11 @@ struct JSContext {
* Operation count. It is declared early in the structure as a frequently
* accessed field.
*/
#if !JS_HAS_OPERATION_COUNT
volatile int32 operationCount;
#else
int32 operationCount;
#endif
#if JS_HAS_XML_SUPPORT
/*
@ -848,8 +852,10 @@ struct JSContext {
* but operationCallback is not null, operationCallback stores the branch
* callback.
*/
#if JS_HAS_OPERATION_COUNT
uint32 operationCallbackIsSet : 1;
uint32 operationLimit : 31;
#endif
JSOperationCallback operationCallback;
/* Interpreter activation count. */
@ -875,6 +881,10 @@ struct JSContext {
((JSContext *)((char *)(tl) - offsetof(JSContext, threadLinks)))
#endif
#if !JS_HAS_OPERATION_COUNT
PRIntervalTime startTime; /* time when the context thread was started */
#endif
/* PDL of stack headers describing stack slots not rooted by argv, etc. */
JSStackHeader *stackHeaders;
@ -1038,7 +1048,7 @@ js_ValidContextPointer(JSRuntime *rt, JSContext *cx);
* If unlocked, acquire and release rt->gcLock around *iterp update; otherwise
* the caller must be holding rt->gcLock.
*/
extern JSContext *
extern JS_FRIEND_API(JSContext *)
js_ContextIterator(JSRuntime *rt, JSBool unlocked, JSContext **iterp);
/*
@ -1200,9 +1210,11 @@ extern JSErrorFormatString js_ErrorFormatString[JSErr_Limit];
* This macro can run the full GC. Return true if it is OK to continue and
* false otherwise.
*/
#define JS_CHECK_OPERATION_LIMIT(cx, weight) \
#if JS_HAS_OPERATION_COUNT
# define JS_CHECK_OPERATION_LIMIT(cx, weight) \
(JS_CHECK_OPERATION_WEIGHT(weight), \
(((cx)->operationCount -= (weight)) > 0 || js_ResetOperationCount(cx)))
(((cx)->operationCount -= (weight)) > 0 || js_ResetOperationCount(cx)))
/*
* A version of JS_CHECK_OPERATION_LIMIT that just updates the operation count
@ -1210,31 +1222,35 @@ extern JSErrorFormatString js_ErrorFormatString[JSErr_Limit];
* the count to 0 when it becomes negative to prevent a wrap-around when the
* macro is called repeatably.
*/
#define JS_COUNT_OPERATION(cx, weight) \
# define JS_COUNT_OPERATION(cx, weight) \
((void)(JS_CHECK_OPERATION_WEIGHT(weight), \
(cx)->operationCount = ((cx)->operationCount > 0) \
? (cx)->operationCount - (weight) \
: 0))
(cx)->operationCount = ((cx)->operationCount > 0) \
? (cx)->operationCount - (weight) \
: 0))
/*
* The implementation of the above macros assumes that subtracting weights
* twice from a positive number does not wrap-around INT32_MIN.
*/
#define JS_CHECK_OPERATION_WEIGHT(weight) \
# define JS_CHECK_OPERATION_WEIGHT(weight) \
(JS_ASSERT((uint32) (weight) > 0), \
JS_ASSERT((uint32) (weight) < JS_BIT(30)))
/* Relative operations weights. */
#define JSOW_JUMP 1
#define JSOW_ALLOCATION 100
#define JSOW_LOOKUP_PROPERTY 5
#define JSOW_GET_PROPERTY 10
#define JSOW_SET_PROPERTY 20
#define JSOW_NEW_PROPERTY 200
#define JSOW_DELETE_PROPERTY 30
#define JSOW_ENTER_SHARP JS_OPERATION_WEIGHT_BASE
#define JSOW_SCRIPT_JUMP JS_OPERATION_WEIGHT_BASE
# define JSOW_JUMP 1
# define JSOW_ALLOCATION 100
# define JSOW_LOOKUP_PROPERTY 5
# define JSOW_GET_PROPERTY 10
# define JSOW_SET_PROPERTY 20
# define JSOW_NEW_PROPERTY 200
# define JSOW_DELETE_PROPERTY 30
# define JSOW_ENTER_SHARP JS_OPERATION_WEIGHT_BASE
# define JSOW_SCRIPT_JUMP JS_OPERATION_WEIGHT_BASE
#else
# define JS_CHECK_OPERATION_LIMIT(cx, weight) \
(((cx)->operationCount) > 0 || js_ResetOperationCount(cx))
# define JS_COUNT_OPERATION(cx, weight) ((void) 0)
#endif
/*
* Reset the operation count and call the operation callback assuming that the
* operation limit is reached.

15
js/src/jsinterp.cpp
View File

@ -2665,14 +2665,23 @@ js_Interpret(JSContext *cx)
* Prepare to call a user-supplied branch handler, and abort the script
* if it returns false.
*/
#define CHECK_BRANCH() \
#if JS_HAS_OPERATION_COUNT
# define CHECK_BRANCH() \
JS_BEGIN_MACRO \
if ((cx->operationCount -= JSOW_SCRIPT_JUMP) <= 0) { \
if (!js_ResetOperationCount(cx)) \
goto error; \
} \
JS_END_MACRO
#else
# define CHECK_BRANCH() \
JS_BEGIN_MACRO \
if (cx->operationCount < 1) { \
if (!js_ResetOperationCount(cx)) \
goto error; \
} \
JS_END_MACRO
#endif
#define BRANCH(n) \
JS_BEGIN_MACRO \
regs.pc += n; \
@ -5951,7 +5960,7 @@ js_Interpret(JSContext *cx)
}
TRACE_2(DefLocalFunSetSlot, slot, obj);
fp->slots[slot] = OBJECT_TO_JSVAL(obj);
END_CASE(JSOP_DEFLOCALFUN)

30
js/src/jspubtd.h
View File

@ -106,8 +106,8 @@ typedef enum JSAccessMode {
JSACC_PROTO = 0, /* XXXbe redundant w.r.t. id */
JSACC_PARENT = 1, /* XXXbe redundant w.r.t. id */
/*
* enum value #2 formerly called JSACC_IMPORT,
/*
* enum value #2 formerly called JSACC_IMPORT,
* gap preserved for liveconnect ABI compatibility.
*/
@ -594,21 +594,25 @@ typedef JSBool
typedef enum JSContextOp {
JSCONTEXT_NEW,
JSCONTEXT_DESTROY
JSCONTEXT_DESTROY,
JSCONTEXT_REQUEST_START
} JSContextOp;
/*
* The possible values for contextOp when the runtime calls the callback are:
* JSCONTEXT_NEW JS_NewContext successfully created a new JSContext
* instance. The callback can initialize the instance as
* required. If the callback returns false, the instance
* will be destroyed and JS_NewContext returns null. In
* this case the callback is not called again.
* JSCONTEXT_DESTROY One of JS_DestroyContext* methods is called. The
* callback may perform its own cleanup and must always
* return true.
* Any other value For future compatibility the callback must do nothing
* and return true in this case.
* JSCONTEXT_NEW JS_NewContext successfully created a new JSContext
* instance. The callback can initialize the instance as
* required. If the callback returns false, the instance
* will be destroyed and JS_NewContext returns null. In
* this case the callback is not called again.
* JSCONTEXT_DESTROY One of JS_DestroyContext* methods is called. The
* callback may perform its own cleanup and must always
* return true.
* JSCONTEXT_REQUEST_START JS_BeginRequest was called with requestDepth == 0.
* This callback can be used to notify other components
* that execution has begun on this context.
* Any other value For future compatibility the callback must do nothing
* and return true in this case.
*/
typedef JSBool
(* JSContextCallback)(JSContext *cx, uintN contextOp);

8
js/src/jsversion.h
View File

@ -241,3 +241,11 @@
/* Feature-test macro for evolving destructuring support. */
#define JS_HAS_DESTRUCTURING_SHORTHAND (JS_HAS_DESTRUCTURING == 2)
#ifndef JS_HAS_OPERATION_COUNT
# if defined(MOZILLA_VERSION) || defined(JS_THREADSAFE)
# define JS_HAS_OPERATION_COUNT 0
# else
# define JS_HAS_OPERATION_COUNT 1
# endif
#endif

19
js/src/xpconnect/idl/nsIXPConnect.idl
View File

@ -70,6 +70,7 @@
[ptr] native nsScriptObjectTracerPtr(nsScriptObjectTracer);
[ref] native nsCCTraversalCallbackRef(nsCycleCollectionTraversalCallback);
[ptr] native nsAXPCNativeCallContextPtr(nsAXPCNativeCallContext);
native PRIntervalTime(PRIntervalTime);
/***************************************************************************/
@ -405,7 +406,7 @@ interface nsIXPCFunctionThisTranslator : nsISupports
{ 0xbd, 0xd6, 0x0, 0x0, 0x64, 0x65, 0x73, 0x74 } }
%}
[uuid(d4c6bc06-2a4f-4315-90ec-d12904aca046)]
[uuid(eb95710a-e112-44ae-abe1-6f8dfb58d7f8)]
interface nsIXPConnect : nsISupports
{
%{ C++
@ -767,4 +768,20 @@ interface nsIXPConnect : nsISupports
in PRUint32 flags,
in PRUint32 interfaceCount,
[array, size_is(interfaceCount)] in nsIIDPtr interfaceArray);
/**
* Returns the value of the watchdog limit for the specified context.
* @param cx
* A context
*/
[noscript,notxpcom] PRIntervalTime getWatchdogLimit(in JSContextPtr cx);
/**
* Sets a new value of the watchdog limit.
* @param cx
* A context
* @param limit
* New value of the watchdog limit.
*/
[noscript,notxpcom] PRBool setWatchdogLimit(in JSContextPtr cx, in PRIntervalTime limit);
};

76
js/src/xpconnect/src/nsXPConnect.cpp
View File

@ -319,13 +319,13 @@ static PRBool NameTester(nsIInterfaceInfoManager* manager, const void* data,
*info;
}
static nsresult FindInfo(InfoTester tester, const void* data,
static nsresult FindInfo(InfoTester tester, const void* data,
nsIInterfaceInfoSuperManager* iism,
nsIInterfaceInfo** info)
{
if(tester(iism, data, info))
return NS_OK;
// If not found, then let's ask additional managers.
PRBool yes;
@ -345,9 +345,9 @@ static nsresult FindInfo(InfoTester tester, const void* data,
return NS_OK;
}
}
return NS_ERROR_NO_INTERFACE;
}
}
nsresult
nsXPConnect::GetInfoForIID(const nsIID * aIID, nsIInterfaceInfo** info)
@ -434,7 +434,7 @@ nsXPConnect::Collect()
// 1. marking of the roots in category 1 by having the JS GC do its marking
// 2. cycle collection
// 3. marking of the roots in category 2 by
// XPCJSRuntime::TraceXPConnectRoots
// XPCJSRuntime::TraceXPConnectRoots
// 4. sweeping of unmarked JS objects
//
// During cycle collection, marked JS objects (and the objects they hold)
@ -520,7 +520,7 @@ NoteJSRoot(JSTracer *trc, void *thing, uint32 kind)
}
#endif
nsresult
nsresult
nsXPConnect::BeginCycleCollection(nsCycleCollectionTraversalCallback &cb)
{
#ifdef DEBUG_CC
@ -588,7 +588,7 @@ nsXPConnect::RecordTraversal(void *p, nsISupports *s)
}
#endif
nsresult
nsresult
nsXPConnect::FinishCycleCollection()
{
#ifdef DEBUG_CC
@ -875,7 +875,7 @@ nsXPConnect::Traverse(void *p, nsCycleCollectionTraversalCallback &cb)
if(traceKind != JSTRACE_OBJECT)
return NS_OK;
JSObject *obj = static_cast<JSObject*>(p);
JSClass* clazz = OBJ_GET_CLASS(cx, obj);
@ -1205,7 +1205,7 @@ nsXPConnect::WrapNative(JSContext * aJSContext,
NS_ASSERTION(!XPCNativeWrapper::IsNativeWrapper(returnObj),
"Shouldn't be returning a native wrapper here");
#endif
return NS_OK;
}
@ -1692,7 +1692,7 @@ nsXPConnect::GetFunctionThisTranslator(const nsIID & aIID,
}
/* void setSafeJSContextForCurrentThread (in JSContextPtr cx); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPConnect::SetSafeJSContextForCurrentThread(JSContext * cx)
{
XPCCallContext ccx(NATIVE_CALLER);
@ -1713,10 +1713,10 @@ nsXPConnect::ClearAllWrappedNativeSecurityPolicies()
}
/* void restoreWrappedNativePrototype (in JSContextPtr aJSContext, in JSObjectPtr aScope, in nsIClassInfo aClassInfo, in nsIXPConnectJSObjectHolder aPrototype); */
NS_IMETHODIMP
nsXPConnect::RestoreWrappedNativePrototype(JSContext * aJSContext,
JSObject * aScope,
nsIClassInfo * aClassInfo,
NS_IMETHODIMP
nsXPConnect::RestoreWrappedNativePrototype(JSContext * aJSContext,
JSObject * aScope,
nsIClassInfo * aClassInfo,
nsIXPConnectJSObjectHolder * aPrototype)
{
XPCCallContext ccx(NATIVE_CALLER, aJSContext);
@ -1874,10 +1874,10 @@ nsXPConnect::GetXPCWrappedNativeJSClassInfo(const JSClass **clazz,
}
/* nsIXPConnectJSObjectHolder getWrappedNativePrototype (in JSContextPtr aJSContext, in JSObjectPtr aScope, in nsIClassInfo aClassInfo); */
NS_IMETHODIMP
nsXPConnect::GetWrappedNativePrototype(JSContext * aJSContext,
JSObject * aScope,
nsIClassInfo *aClassInfo,
NS_IMETHODIMP
nsXPConnect::GetWrappedNativePrototype(JSContext * aJSContext,
JSObject * aScope,
nsIClassInfo *aClassInfo,
nsIXPConnectJSObjectHolder **_retval)
{
XPCCallContext ccx(NATIVE_CALLER, aJSContext);
@ -1893,14 +1893,14 @@ nsXPConnect::GetWrappedNativePrototype(JSContext * aJSContext,
XPCWrappedNative::GatherProtoScriptableCreateInfo(aClassInfo, &sciProto);
AutoMarkingWrappedNativeProtoPtr proto(ccx);
proto = XPCWrappedNativeProto::GetNewOrUsed(ccx, scope, aClassInfo,
proto = XPCWrappedNativeProto::GetNewOrUsed(ccx, scope, aClassInfo,
&sciProto, JS_FALSE,
OBJ_IS_NOT_GLOBAL);
if(!proto)
return UnexpectedFailure(NS_ERROR_FAILURE);
nsIXPConnectJSObjectHolder* holder;
*_retval = holder = XPCJSObjectHolder::newHolder(ccx,
*_retval = holder = XPCJSObjectHolder::newHolder(ccx,
proto->GetJSProtoObject());
if(!holder)
return UnexpectedFailure(NS_ERROR_FAILURE);
@ -1971,7 +1971,7 @@ nsXPConnect::UpdateXOWs(JSContext* aJSContext,
}
/* void releaseJSContext (in JSContextPtr aJSContext, in PRBool noGC); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPConnect::ReleaseJSContext(JSContext * aJSContext, PRBool noGC)
{
NS_ASSERTION(aJSContext, "bad param");
@ -1979,8 +1979,8 @@ nsXPConnect::ReleaseJSContext(JSContext * aJSContext, PRBool noGC)
if(tls)
{
XPCCallContext* ccx = nsnull;
for(XPCCallContext* cur = tls->GetCallContext();
cur;
for(XPCCallContext* cur = tls->GetCallContext();
cur;
cur = cur->GetPrevCallContext())
{
if(cur->GetJSContext() == aJSContext)
@ -1989,11 +1989,11 @@ nsXPConnect::ReleaseJSContext(JSContext * aJSContext, PRBool noGC)
// Keep looping to find the deepest matching call context.
}
}
if(ccx)
{
#ifdef DEBUG_xpc_hacker
printf("!xpc - deferring destruction of JSContext @ %p\n",
printf("!xpc - deferring destruction of JSContext @ %p\n",
(void *)aJSContext);
#endif
ccx->SetDestroyJSContextInDestructor(JS_TRUE);
@ -2002,12 +2002,12 @@ nsXPConnect::ReleaseJSContext(JSContext * aJSContext, PRBool noGC)
}
// else continue on and synchronously destroy the JSContext ...
NS_ASSERTION(!tls->GetJSContextStack() ||
NS_ASSERTION(!tls->GetJSContextStack() ||
!tls->GetJSContextStack()->
DEBUG_StackHasJSContext(aJSContext),
"JSContext still in threadjscontextstack!");
}
if(noGC)
JS_DestroyContextNoGC(aJSContext);
else
@ -2128,7 +2128,7 @@ nsXPConnect::DebugDumpEvalInJSStackFrame(PRUint32 aFrameNumber, const char *aSou
}
/* JSVal variantToJS (in JSContextPtr ctx, in JSObjectPtr scope, in nsIVariant value); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPConnect::VariantToJS(JSContext* ctx, JSObject* scope, nsIVariant* value, jsval* _retval)
{
NS_PRECONDITION(ctx, "bad param");
@ -2143,7 +2143,7 @@ nsXPConnect::VariantToJS(JSContext* ctx, JSObject* scope, nsIVariant* value, jsv
nsresult rv = NS_OK;
if(!XPCVariant::VariantDataToJS(ccx, value, scope, &rv, _retval))
{
if(NS_FAILED(rv))
if(NS_FAILED(rv))
return rv;
return NS_ERROR_FAILURE;
@ -2153,7 +2153,7 @@ nsXPConnect::VariantToJS(JSContext* ctx, JSObject* scope, nsIVariant* value, jsv
}
/* nsIVariant JSToVariant (in JSContextPtr ctx, in JSVal value); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPConnect::JSToVariant(JSContext* ctx, jsval value, nsIVariant** _retval)
{
NS_PRECONDITION(ctx, "bad param");
@ -2165,7 +2165,7 @@ nsXPConnect::JSToVariant(JSContext* ctx, jsval value, nsIVariant** _retval)
return NS_ERROR_FAILURE;
*_retval = XPCVariant::newVariant(ccx, value);
if(!(*_retval))
if(!(*_retval))
return NS_ERROR_FAILURE;
return NS_OK;
@ -2173,7 +2173,7 @@ nsXPConnect::JSToVariant(JSContext* ctx, jsval value, nsIVariant** _retval)
/* void flagSystemFilenamePrefix (in string filenamePrefix,
* in PRBool aWantNativeWrappers); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPConnect::FlagSystemFilenamePrefix(const char *aFilenamePrefix,
PRBool aWantNativeWrappers)
{
@ -2376,6 +2376,18 @@ nsXPConnect::SetSafeJSContext(JSContext * aSafeJSContext)
return data->GetJSContextStack()->SetSafeJSContext(aSafeJSContext);
}
NS_IMETHODIMP_(PRBool)
nsXPConnect::SetWatchdogLimit(JSContext *cx, PRIntervalTime limit)
{
return GetRuntime()->SetWatchdogLimit(cx, limit);
}
NS_IMETHODIMP_(PRIntervalTime)
nsXPConnect::GetWatchdogLimit(JSContext *cx)
{
return GetRuntime()->GetWatchdogLimit(cx);
}
/* These are here to be callable from a debugger */
JS_BEGIN_EXTERN_C
JS_EXPORT_API(void) DumpJSStack()

182
js/src/xpconnect/src/xpccomponents.cpp
View File

@ -765,7 +765,7 @@ nsXPCComponents_InterfacesByID::CanSetProperty(const nsIID * iid, const PRUnicha
class nsXPCComponents_Classes :
class nsXPCComponents_Classes :
public nsIXPCComponents_Classes,
public nsIXPCScriptable,
public nsIClassInfo
@ -783,9 +783,9 @@ public:
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Classes::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -818,8 +818,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Classes::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCComponents_Classes::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -827,7 +827,7 @@ nsXPCComponents_Classes::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Classes::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -835,7 +835,7 @@ nsXPCComponents_Classes::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Classes::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Classes";
@ -844,7 +844,7 @@ nsXPCComponents_Classes::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Classes::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -852,7 +852,7 @@ nsXPCComponents_Classes::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Classes::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -861,7 +861,7 @@ nsXPCComponents_Classes::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Classes::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -869,7 +869,7 @@ nsXPCComponents_Classes::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Classes::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
@ -1038,9 +1038,9 @@ public:
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -1073,8 +1073,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -1082,7 +1082,7 @@ nsXPCComponents_ClassesByID::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -1090,7 +1090,7 @@ nsXPCComponents_ClassesByID::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Interfaces";
@ -1099,7 +1099,7 @@ nsXPCComponents_ClassesByID::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -1107,7 +1107,7 @@ nsXPCComponents_ClassesByID::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -1116,7 +1116,7 @@ nsXPCComponents_ClassesByID::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -1124,7 +1124,7 @@ nsXPCComponents_ClassesByID::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ClassesByID::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
@ -1312,9 +1312,9 @@ public:
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Results::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -1347,8 +1347,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Results::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCComponents_Results::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -1356,7 +1356,7 @@ nsXPCComponents_Results::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Results::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -1364,7 +1364,7 @@ nsXPCComponents_Results::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Results::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Interfaces";
@ -1373,7 +1373,7 @@ nsXPCComponents_Results::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Results::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -1381,7 +1381,7 @@ nsXPCComponents_Results::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Results::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -1390,7 +1390,7 @@ nsXPCComponents_Results::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Results::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -1398,7 +1398,7 @@ nsXPCComponents_Results::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Results::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
@ -1544,9 +1544,9 @@ private:
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ID::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -1579,8 +1579,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_ID::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCComponents_ID::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -1588,7 +1588,7 @@ nsXPCComponents_ID::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ID::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -1596,7 +1596,7 @@ nsXPCComponents_ID::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ID::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Interfaces";
@ -1605,7 +1605,7 @@ nsXPCComponents_ID::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ID::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -1613,7 +1613,7 @@ nsXPCComponents_ID::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ID::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -1622,7 +1622,7 @@ nsXPCComponents_ID::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ID::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -1630,7 +1630,7 @@ nsXPCComponents_ID::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_ID::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
@ -1771,9 +1771,9 @@ private:
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Exception::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -1806,8 +1806,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Exception::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCComponents_Exception::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -1815,7 +1815,7 @@ nsXPCComponents_Exception::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Exception::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -1823,7 +1823,7 @@ nsXPCComponents_Exception::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Exception::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Interfaces";
@ -1832,7 +1832,7 @@ nsXPCComponents_Exception::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Exception::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -1840,7 +1840,7 @@ nsXPCComponents_Exception::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Exception::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -1849,7 +1849,7 @@ nsXPCComponents_Exception::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Exception::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -1857,7 +1857,7 @@ nsXPCComponents_Exception::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Exception::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
@ -2064,9 +2064,9 @@ private:
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCConstructor::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -2099,8 +2099,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCConstructor::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCConstructor::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -2108,7 +2108,7 @@ nsXPCConstructor::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCConstructor::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -2116,7 +2116,7 @@ nsXPCConstructor::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCConstructor::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Interfaces";
@ -2125,7 +2125,7 @@ nsXPCConstructor::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCConstructor::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -2133,7 +2133,7 @@ nsXPCConstructor::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCConstructor::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -2142,7 +2142,7 @@ nsXPCConstructor::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCConstructor::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -2150,7 +2150,7 @@ nsXPCConstructor::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCConstructor::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
@ -2329,9 +2329,9 @@ private:
};
/***************************************************************************/
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Constructor::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -2364,8 +2364,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents_Constructor::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCComponents_Constructor::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -2373,7 +2373,7 @@ nsXPCComponents_Constructor::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Constructor::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -2381,7 +2381,7 @@ nsXPCComponents_Constructor::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Constructor::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents_Interfaces";
@ -2390,7 +2390,7 @@ nsXPCComponents_Constructor::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Constructor::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -2398,7 +2398,7 @@ nsXPCComponents_Constructor::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Constructor::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -2407,7 +2407,7 @@ nsXPCComponents_Constructor::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Constructor::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -2415,7 +2415,7 @@ nsXPCComponents_Constructor::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents_Constructor::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
@ -3220,7 +3220,7 @@ xpc_CreateSandboxObject(JSContext * cx, jsval * vp, nsISupports *prinOrSop)
if (!principal || NS_FAILED(rv)) {
if (NS_SUCCEEDED(rv))
rv = NS_ERROR_FAILURE;
return rv;
}
}
@ -3386,7 +3386,7 @@ public:
private:
static JSBool ContextHolderOperationCallback(JSContext *cx);
XPCAutoJSContext mJSContext;
JSContext* mOrigCx;
};
@ -3405,11 +3405,17 @@ ContextHolder::ContextHolder(JSContext *aOuterCx, JSObject *aSandbox)
JS_SetGlobalObject(mJSContext, aSandbox);
JS_SetContextPrivate(mJSContext, this);
if(JS_GetOperationCallback(aOuterCx))
PRIntervalTime watchdogLimit =
nsXPConnect::GetXPConnect()->GetWatchdogLimit(aOuterCx);
if(watchdogLimit)
{
JS_SetOperationCallback(mJSContext, ContextHolderOperationCallback,
JS_GetOperationLimit(aOuterCx));
JS_SetOperationCallback(mJSContext,
ContextHolderOperationCallback);
nsXPConnect::GetXPConnect()->SetWatchdogLimit(mJSContext,
watchdogLimit);
}
}
}
@ -3431,7 +3437,9 @@ ContextHolder::ContextHolderOperationCallback(JSContext *cx)
{
// If the callback is still set in the original context, reflect
// a possibly updated operation limit into cx.
JS_SetOperationLimit(cx, JS_GetOperationLimit(origCx));
PRIntervalTime limit =
nsXPConnect::GetXPConnect()->GetWatchdogLimit(origCx);
ok = nsXPConnect::GetXPConnect()->SetWatchdogLimit(cx, limit);
return ok;
}
}
@ -3736,9 +3744,9 @@ NS_INTERFACE_MAP_END_THREADSAFE
NS_IMPL_THREADSAFE_ADDREF(nsXPCComponents)
NS_IMPL_THREADSAFE_RELEASE(nsXPCComponents)
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
/* void getInterfaces (out PRUint32 count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents::GetInterfaces(PRUint32 *aCount, nsIID * **aArray)
{
PRUint32 count = 2;
@ -3777,8 +3785,8 @@ oom:
}
/* nsISupports getHelperForLanguage (in PRUint32 language); */
NS_IMETHODIMP
nsXPCComponents::GetHelperForLanguage(PRUint32 language,
NS_IMETHODIMP
nsXPCComponents::GetHelperForLanguage(PRUint32 language,
nsISupports **retval)
{
*retval = nsnull;
@ -3786,7 +3794,7 @@ nsXPCComponents::GetHelperForLanguage(PRUint32 language,
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents::GetContractID(char * *aContractID)
{
*aContractID = nsnull;
@ -3794,7 +3802,7 @@ nsXPCComponents::GetContractID(char * *aContractID)
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "XPCComponents";
@ -3803,7 +3811,7 @@ nsXPCComponents::GetClassDescription(char * *aClassDescription)
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents::GetClassID(nsCID * *aClassID)
{
*aClassID = nsnull;
@ -3811,7 +3819,7 @@ nsXPCComponents::GetClassID(nsCID * *aClassID)
}
/* readonly attribute PRUint32 implementationLanguage; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents::GetImplementationLanguage(
PRUint32 *aImplementationLanguage)
{
@ -3820,7 +3828,7 @@ nsXPCComponents::GetImplementationLanguage(
}
/* readonly attribute PRUint32 flags; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents::GetFlags(PRUint32 *aFlags)
{
*aFlags = nsIClassInfo::THREADSAFE;
@ -3828,7 +3836,7 @@ nsXPCComponents::GetFlags(PRUint32 *aFlags)
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
NS_IMETHODIMP
nsXPCComponents::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;

1
js/src/xpconnect/src/xpccontext.cpp
View File

@ -52,6 +52,7 @@ XPCContext::XPCContext(XPCJSRuntime* aRuntime,
mPendingResult(NS_OK),
mSecurityManager(nsnull),
mException(nsnull),
mWatchdogLimit(0),
mCallingLangType(LANG_UNKNOWN),
mSecurityManagerFlags(0)
{

161
js/src/xpconnect/src/xpcjsruntime.cpp
View File

@ -216,7 +216,7 @@ static JSDHashOperator
DetachedWrappedNativeProtoMarker(JSDHashTable *table, JSDHashEntryHdr *hdr,
uint32 number, void *arg)
{
XPCWrappedNativeProto* proto =
XPCWrappedNativeProto* proto =
(XPCWrappedNativeProto*)((JSDHashEntryStub*)hdr)->key;
proto->Mark();
@ -239,6 +239,14 @@ ContextCallback(JSContext *cx, uintN operation)
{
delete XPCContext::GetXPCContext(cx);
}
else if(operation == JSCONTEXT_REQUEST_START)
{
// If we're called during context creation, we will assert if we
// try to call XPCContext::GetXPCContext.
if(!cx->data2)
return JS_TRUE;
self->WakeupWatchdog(cx);
}
}
return JS_TRUE;
}
@ -309,7 +317,7 @@ void XPCJSRuntime::TraceJS(JSTracer* trc, void* data)
// them here.
for(XPCRootSetElem *e = self->mObjectHolderRoots; e ; e = e->GetNextRoot())
static_cast<XPCJSObjectHolder*>(e)->TraceJS(trc);
if(self->GetXPConnect()->ShouldTraceRoots())
{
// Only trace these if we're not cycle-collecting, the cycle collector
@ -527,7 +535,7 @@ JSBool XPCJSRuntime::GCCallback(JSContext *cx, JSGCStatus status)
case JSGC_MARK_END:
{
NS_ASSERTION(!self->mDoingFinalization, "bad state");
// mThreadRunningGC indicates that GC is running
{ // scoped lock
XPCAutoLock lock(self->GetMapLock());
@ -550,8 +558,8 @@ JSBool XPCJSRuntime::GCCallback(JSContext *cx, JSGCStatus status)
Enumerate(WrappedJSDyingJSObjectFinder, &data);
}
// Do cleanup in NativeInterfaces. This part just finds
// member cloned function objects that are about to be
// Do cleanup in NativeInterfaces. This part just finds
// member cloned function objects that are about to be
// collected. It does not deal with collection of interfaces or
// sets at this point.
CX_AND_XPCRT_Data data = {cx, self};
@ -716,7 +724,7 @@ JSBool XPCJSRuntime::GCCallback(JSContext *cx, JSGCStatus status)
if(threadLock)
{
// Do the marking...
{ // scoped lock
nsAutoLock lock(threadLock);
@ -735,7 +743,7 @@ JSBool XPCJSRuntime::GCCallback(JSContext *cx, JSGCStatus status)
// possibly be valid.
if(ccxp->CanGetTearOff())
{
XPCWrappedNativeTearOff* to =
XPCWrappedNativeTearOff* to =
ccxp->GetTearOff();
if(to)
to->Mark();
@ -744,7 +752,7 @@ JSBool XPCJSRuntime::GCCallback(JSContext *cx, JSGCStatus status)
}
}
}
// Do the sweeping...
XPCWrappedNativeScope::SweepAllWrappedNativeTearOffs();
}
@ -820,6 +828,126 @@ JSBool XPCJSRuntime::GCCallback(JSContext *cx, JSGCStatus status)
return JS_TRUE;
}
/* static */
void
XPCJSRuntime::WatchdogMain(void *arg)
{
XPCJSRuntime *xpcrt = (XPCJSRuntime *) arg;
JSRuntime *rt = xpcrt->GetJSRuntime();
PRStatus status;
PRBool isRunning;
do
{
JSContext *iter = NULL;
JSContext *acx;
PRIntervalTime newInterval = (PRIntervalTime) 0;
XPCContext *ccx;
PRIntervalTime ct = PR_IntervalNow();
PR_Lock(xpcrt->mWatchdogLock);
JS_LOCK_GC(rt);
while((acx = js_ContextIterator(rt, JS_FALSE, &iter)))
{
if(acx->requestDepth)
{
ccx = XPCContext::GetXPCContext(acx);
if(ccx->mWatchdogLimit &&
ct - acx->startTime > ccx->mWatchdogLimit)
{
JS_TriggerOperationCallback(acx);
}
if(newInterval > ccx->mWatchdogLimit || !newInterval)
newInterval = ccx->mWatchdogLimit;
}
}
JS_UNLOCK_GC(rt);
xpcrt->mCurrentInterval = newInterval ? newInterval
: PR_INTERVAL_NO_TIMEOUT;
if (xpcrt->mWatchdogRunning)
status = PR_WaitCondVar(xpcrt->mWatchdogWakeup,
xpcrt->mCurrentInterval);
isRunning = xpcrt->mWatchdogRunning;
PR_Unlock(xpcrt->mWatchdogLock);
} while (isRunning && status == PR_SUCCESS);
}
PRBool
XPCJSRuntime::SetWatchdogLimit(JSContext *cx, PRIntervalTime newWatchdogLimit)
{
PRBool isRunning;
PRIntervalTime oldWatchdogLimit;
XPCContext *ccx = XPCContext::GetXPCContext(cx);
if(newWatchdogLimit == ccx->mWatchdogLimit)
return PR_TRUE;
oldWatchdogLimit = ccx->mWatchdogLimit;
ccx->mWatchdogLimit = newWatchdogLimit;
/*
* Start a new watchdog thread if it has not been started. If it has been
* started wake up the thread and cause the watchdog rescheduling.
*/
PR_Lock(mWatchdogLock);
isRunning = !!mWatchdogThread;
if(!isRunning)
{
mWatchdogRunning = PR_TRUE;
mWatchdogThread =
PR_CreateThread(PRThreadType(PR_USER_THREAD),
WatchdogMain,
this,
PRThreadPriority(PR_PRIORITY_NORMAL),
PRThreadScope(PR_LOCAL_THREAD),
PRThreadState(PR_JOINABLE_THREAD),
0);
}
PR_Unlock(mWatchdogLock);
if(!mWatchdogThread)
return PR_FALSE;
if(isRunning &&
(oldWatchdogLimit > ccx->mWatchdogLimit ||
mCurrentInterval == PR_INTERVAL_NO_TIMEOUT))
WakeupWatchdog(cx);
return PR_TRUE;
}
void
XPCJSRuntime::WakeupWatchdog(JSContext *cx)
{
XPCContext *ccx = XPCContext::GetXPCContext(cx);
PR_Lock(mWatchdogLock);
if(mCurrentInterval == PR_INTERVAL_NO_TIMEOUT ||
(ccx && mCurrentInterval > ccx->mWatchdogLimit))
PR_NotifyCondVar(mWatchdogWakeup);
PR_Unlock(mWatchdogLock);
}
PRBool
XPCJSRuntime::ShutdownWatchdog()
{
PR_Lock(mWatchdogLock);
mWatchdogRunning = PR_FALSE;
PRThread *t = mWatchdogThread;
mWatchdogThread = NULL;
PR_NotifyCondVar(mWatchdogWakeup);
PR_Unlock(mWatchdogLock);
if(t)
PR_JoinThread(t);
return PR_TRUE;
}
PRIntervalTime
XPCJSRuntime::GetWatchdogLimit(JSContext *cx)
{
return XPCContext::GetXPCContext(cx)->mWatchdogLimit;
}
/***************************************************************************/
#ifdef XPC_CHECK_WRAPPERS_AT_SHUTDOWN
@ -850,7 +978,7 @@ static JSDHashOperator
DetachedWrappedNativeProtoShutdownMarker(JSDHashTable *table, JSDHashEntryHdr *hdr,
uint32 number, void *arg)
{
XPCWrappedNativeProto* proto =
XPCWrappedNativeProto* proto =
(XPCWrappedNativeProto*)((JSDHashEntryStub*)hdr)->key;
proto->SystemIsBeingShutDown((JSContext*)arg);
@ -1011,6 +1139,12 @@ XPCJSRuntime::~XPCJSRuntime()
mClearedGlobalObjects.ops = nsnull;
}
ShutdownWatchdog();
if(mWatchdogWakeup)
JS_DESTROY_CONDVAR(mWatchdogWakeup);
if(mWatchdogLock)
JS_DESTROY_LOCK(mWatchdogLock);
if(mJSRuntime)
{
JS_DestroyRuntime(mJSRuntime);
@ -1098,6 +1232,11 @@ XPCJSRuntime::XPCJSRuntime(nsXPConnect* aXPConnect)
if(mJSRuntime && !JS_GetGlobalDebugHooks(mJSRuntime)->debuggerHandler)
xpc_InstallJSDebuggerKeywordHandler(mJSRuntime);
#endif
mWatchdogLock = JS_NEW_LOCK();
mWatchdogWakeup = JS_NEW_CONDVAR(mWatchdogLock);
mWatchdogThread = NULL;
}
// static
@ -1147,7 +1286,7 @@ XPCJSRuntime::OnJSContextNew(JSContext *cx)
mStrJSVals[i] = STRING_TO_JSVAL(str);
}
}
if (!ok)
if(!ok)
return JS_FALSE;
XPCPerThreadData* tls = XPCPerThreadData::GetData(cx);
@ -1155,7 +1294,7 @@ XPCJSRuntime::OnJSContextNew(JSContext *cx)
return JS_FALSE;
XPCContext* xpc = new XPCContext(this, cx);
if (!xpc)
if(!xpc)
return JS_FALSE;
JS_SetThreadStackLimit(cx, tls->GetStackLimit());

102
js/src/xpconnect/src/xpcprivate.h
View File

@ -275,22 +275,22 @@ extern const char XPC_XPCONNECT_CONTRACTID[];
typedef PRMonitor XPCLock;
static inline void xpc_Wait(XPCLock* lock)
static inline void xpc_Wait(XPCLock* lock)
{
NS_ASSERTION(lock, "xpc_Wait called with null lock!");
#ifdef DEBUG
PRStatus result =
PRStatus result =
#endif
PR_Wait(lock, PR_INTERVAL_NO_TIMEOUT);
NS_ASSERTION(PR_SUCCESS == result, "bad result from PR_Wait!");
}
static inline void xpc_NotifyAll(XPCLock* lock)
static inline void xpc_NotifyAll(XPCLock* lock)
{
NS_ASSERTION(lock, "xpc_NotifyAll called with null lock!");
#ifdef DEBUG
PRStatus result =
#endif
PRStatus result =
#endif
PR_NotifyAll(lock);
NS_ASSERTION(PR_SUCCESS == result, "bad result from PR_NotifyAll!");
}
@ -510,7 +510,7 @@ public:
NS_IMETHOD Unroot(void *p);
NS_IMETHOD Traverse(void *p,
nsCycleCollectionTraversalCallback &cb);
// nsCycleCollectionLanguageRuntime
virtual nsresult BeginCycleCollection(nsCycleCollectionTraversalCallback &cb);
virtual nsresult FinishCycleCollection();
@ -738,6 +738,10 @@ public:
~XPCJSRuntime();
PRIntervalTime GetWatchdogLimit(JSContext *cx);
PRBool SetWatchdogLimit(JSContext *cx, PRIntervalTime limit);
void WakeupWatchdog(JSContext *cx);
#ifdef XPC_CHECK_WRAPPERS_AT_SHUTDOWN
void DEBUG_AddWrappedNative(nsIXPConnectWrappedNative* wrapper)
{XPCAutoLock lock(GetMapLock());
@ -759,6 +763,9 @@ private:
XPCJSRuntime(); // no implementation
XPCJSRuntime(nsXPConnect* aXPConnect);
PRBool ShutdownWatchdog();
static void WatchdogMain(void *args);
private:
static const char* mStrings[IDX_TOTAL_COUNT];
jsid mStrIDs[IDX_TOTAL_COUNT];
@ -786,6 +793,15 @@ private:
XPCRootSetElem *mObjectHolderRoots;
JSDHashTable mJSHolders;
JSDHashTable mClearedGlobalObjects;
/*
* Variables to support watchdog thread.
*/
PRLock *mWatchdogLock;
PRCondVar *mWatchdogWakeup;
PRBool mWatchdogRunning;
PRThread *mWatchdogThread;
PRIntervalTime mCurrentInterval;
};
/***************************************************************************/
@ -808,26 +824,26 @@ public:
JSContext* GetJSContext() const {return mJSContext;}
enum LangType {LANG_UNKNOWN, LANG_JS, LANG_NATIVE};
LangType GetCallingLangType() const
{
return mCallingLangType;
}
LangType SetCallingLangType(LangType lt)
{
LangType tmp = mCallingLangType;
mCallingLangType = lt;
LangType tmp = mCallingLangType;
mCallingLangType = lt;
return tmp;
}
JSBool CallerTypeIsJavaScript() const
JSBool CallerTypeIsJavaScript() const
{
return LANG_JS == mCallingLangType;
}
JSBool CallerTypeIsNative() const
JSBool CallerTypeIsNative() const
{
return LANG_NATIVE == mCallingLangType;
}
JSBool CallerTypeIsKnown() const
JSBool CallerTypeIsKnown() const
{
return LANG_UNKNOWN != mCallingLangType;
}
@ -901,6 +917,7 @@ private:
nsresult mPendingResult;
nsIXPCSecurityManager* mSecurityManager;
nsIException* mException;
PRIntervalTime mWatchdogLimit;
LangType mCallingLangType;
PRUint16 mSecurityManagerFlags;
@ -1244,7 +1261,7 @@ public:
{return mScriptObjectPrincipal ?
mScriptObjectPrincipal->GetPrincipal() : nsnull;}
#endif
JSObject*
GetPrototypeJSFunction() const {return mPrototypeJSFunction;}
@ -1977,7 +1994,7 @@ public:
// Yes, we *do* need to mark the mScriptableInfo in both cases.
void Mark() const
{mSet->Mark();
{mSet->Mark();
if(mScriptableInfo) mScriptableInfo->Mark();}
#ifdef DEBUG
@ -2499,9 +2516,9 @@ public:
JSObject* aJSObj,
nsISimpleEnumerator** aEnumerate);
static nsresult GetNamedPropertyAsVariant(XPCCallContext& ccx,
static nsresult GetNamedPropertyAsVariant(XPCCallContext& ccx,
JSObject* aJSObj,
jsval aName,
jsval aName,
nsIVariant** aResult);
virtual ~nsXPCWrappedJSClass();
@ -2737,7 +2754,7 @@ public:
* @param scope the default scope to put on the new JSObject's __parent__
* chain
* @param pErr [out] relevant error code, if any.
*/
*/
static JSBool NativeData2JS(XPCCallContext& ccx, jsval* d, const void* s,
const nsXPTType& type, const nsID* iid,
JSObject* scope, nsresult* pErr);
@ -2771,7 +2788,7 @@ public:
static JSBool GetNativeInterfaceFromJSObject(XPCCallContext& ccx,
void** dest, JSObject* src,
const nsID* iid,
const nsID* iid,
nsresult* pErr);
static JSBool JSObject2NativeInterface(XPCCallContext& ccx,
void** dest, JSObject* src,
@ -2792,7 +2809,7 @@ public:
* @param scope the default scope to put on the new JSObjects' __parent__
* chain
* @param pErr [out] relevant error code, if any.
*/
*/
static JSBool NativeArray2JS(XPCCallContext& ccx,
jsval* d, const void** s,
const nsXPTType& type, const nsID* iid,
@ -2842,7 +2859,6 @@ public:
private:
XPCConvert(); // not implemented
};
/***************************************************************************/
@ -2880,7 +2896,7 @@ public:
static void ThrowBadResult(nsresult rv, nsresult result, XPCCallContext& ccx);
static void ThrowBadParam(nsresult rv, uintN paramNum, XPCCallContext& ccx);
#ifdef XPC_IDISPATCH_SUPPORT
static void ThrowCOMError(JSContext* cx, unsigned long COMErrorCode,
static void ThrowCOMError(JSContext* cx, unsigned long COMErrorCode,
nsresult rv = NS_ERROR_XPC_COM_ERROR,
const EXCEPINFO * exception = nsnull);
#endif
@ -3287,7 +3303,7 @@ private:
static XPCPerThreadData* gThreads;
static PRUintn gTLSIndex;
// Cached value of cx->thread on the main thread.
// Cached value of cx->thread on the main thread.
static void *sMainJSThread;
// Cached per thread data for the main thread. Only safe to access
@ -3595,7 +3611,7 @@ private:
JSContext *mCX;
jsrefcount mDepth;
};
/*****************************************/
@ -3691,7 +3707,7 @@ public:
~AutoResolveName()
{
#ifdef DEBUG
jsval old =
jsval old =
#endif
mTLS->SetResolveName(mOld);
NS_ASSERTION(old == mCheck, "Bad Nesting!");
@ -3717,17 +3733,17 @@ public:
}
void AutoTrace(JSTracer* trc) {}
private:
XPCMarkableJSVal(); // not implemented
XPCMarkableJSVal(); // not implemented
jsval mVal;
jsval* mValPtr;
};
};
/***************************************************************************/
// AutoMarkingPtr is the base class for the various AutoMarking pointer types
// below. This system allows us to temporarily protect instances of our garbage
// collected types after they are constructed but before they are safely
// AutoMarkingPtr is the base class for the various AutoMarking pointer types
// below. This system allows us to temporarily protect instances of our garbage
// collected types after they are constructed but before they are safely
// attached to other rooted objects.
// This base class has pure virtual support for marking.
// This base class has pure virtual support for marking.
class AutoMarkingPtr
{
@ -3736,15 +3752,15 @@ public:
: mNext(nsnull), mTLS(ccx.GetThreadData()) {Link();}
virtual ~AutoMarkingPtr() {Unlink();}
void Link()
void Link()
{if(!mTLS) return;
AutoMarkingPtr** list = mTLS->GetAutoRootsAdr();
AutoMarkingPtr** list = mTLS->GetAutoRootsAdr();
mNext = *list; *list = this;}
void Unlink()
void Unlink()
{if(!mTLS) return;
AutoMarkingPtr** cur = mTLS->GetAutoRootsAdr();
AutoMarkingPtr** cur = mTLS->GetAutoRootsAdr();
while(*cur != this) {
NS_ASSERTION(*cur, "This object not in list!");
cur = &(*cur)->mNext;
@ -3754,7 +3770,7 @@ public:
}
AutoMarkingPtr* GetNext() {return mNext;}
virtual void TraceJS(JSTracer* trc) = 0;
virtual void MarkAfterJSFinalize() = 0;
@ -3803,7 +3819,7 @@ DEFINE_AUTO_MARKING_PTR_TYPE(AutoMarkingWrappedNativePtr, XPCWrappedNative)
DEFINE_AUTO_MARKING_PTR_TYPE(AutoMarkingWrappedNativeTearOffPtr, XPCWrappedNativeTearOff)
DEFINE_AUTO_MARKING_PTR_TYPE(AutoMarkingWrappedNativeProtoPtr, XPCWrappedNativeProto)
DEFINE_AUTO_MARKING_PTR_TYPE(AutoMarkingJSVal, XPCMarkableJSVal)
#define DEFINE_AUTO_MARKING_ARRAY_PTR_TYPE(class_, type_) \
class class_ : public AutoMarkingPtr \
{ \
@ -3858,9 +3874,9 @@ protected: \
DEFINE_AUTO_MARKING_ARRAY_PTR_TYPE(AutoMarkingNativeInterfacePtrArrayPtr,
XPCNativeInterface)
// Note: It looked like I would need one of these AutoMarkingPtr types for
// XPCNativeScriptableInfo in order to manage marking its
// XPCNativeScriptableInfo in order to manage marking its
// XPCNativeScriptableShared member during construction. But AFAICT we build
// these and bind them to rooted things so immediately that this just is not
// needed.
@ -3903,8 +3919,8 @@ public:
// the case when mJSVal is JSVAL_STRING, since we don't own the data in
// that case.
// We #define and iid so that out module local code can use QI to detect
// if a given nsIVariant is in fact an XPCVariant.
// We #define and iid so that out module local code can use QI to detect
// if a given nsIVariant is in fact an XPCVariant.
NS_DECLARE_STATIC_IID_ACCESSOR(XPCVARIANT_IID)
static XPCVariant* newVariant(XPCCallContext& ccx, jsval aJSVal);
@ -3922,8 +3938,8 @@ public:
* chain
* @param pErr [out] relevant error code, if any.
* @param pJSVal [out] the resulting jsval.
*/
static JSBool VariantDataToJS(XPCCallContext& ccx,
*/
static JSBool VariantDataToJS(XPCCallContext& ccx,
nsIVariant* variant,
JSObject* scope, nsresult* pErr,
jsval* pJSVal);