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Unified Diff: fpdfsdk/src/jsapi/fxjs_v8.cpp

Issue 1354593004: Merge to master: contention over isolate data slots (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Remove stray whitespace-only change. Created 5 years, 3 months ago
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Index: fpdfsdk/src/jsapi/fxjs_v8.cpp
diff --git a/fpdfsdk/src/jsapi/fxjs_v8.cpp b/fpdfsdk/src/jsapi/fxjs_v8.cpp
index 69ea2cb48bbe96ae886220f4cde9f5249219d61a..c5697c70846eb9fad65ec1ddd3671481befe16d0 100644
--- a/fpdfsdk/src/jsapi/fxjs_v8.cpp
+++ b/fpdfsdk/src/jsapi/fxjs_v8.cpp
@@ -17,22 +17,32 @@ const wchar_t kFXJSValueNameFxobj[] = L"fxobj";
const wchar_t kFXJSValueNameNull[] = L"null";
const wchar_t kFXJSValueNameUndefined[] = L"undefined";
-static unsigned int g_embedderDataSlot = 0u;
+static unsigned int g_embedderDataSlot = 1u;
class CFXJS_PrivateData {
public:
- CFXJS_PrivateData() : ObjDefID(-1), pPrivate(NULL) {}
+ CFXJS_PrivateData(int nObjDefID) : ObjDefID(nObjDefID), pPrivate(NULL) {}
+
int ObjDefID;
void* pPrivate;
};
-class CFXJS_ObjDefintion {
+class CFXJS_ObjDefinition {
public:
- CFXJS_ObjDefintion(v8::Isolate* isolate,
- const wchar_t* sObjName,
- FXJSOBJTYPE eObjType,
- FXJS_CONSTRUCTOR pConstructor,
- FXJS_DESTRUCTOR pDestructor)
+ static int MaxID(v8::Isolate* pIsolate) {
+ return static_cast<int>(
+ FXJS_PerIsolateData::Get(pIsolate)->m_ObjectDefnArray.GetSize());
+ }
+ static CFXJS_ObjDefinition* ForID(v8::Isolate* pIsolate, int id) {
+ // Note: GetAt() halts if out-of-range even in release builds.
+ return static_cast<CFXJS_ObjDefinition*>(
+ FXJS_PerIsolateData::Get(pIsolate)->m_ObjectDefnArray.GetAt(id));
+ }
+ CFXJS_ObjDefinition(v8::Isolate* isolate,
+ const wchar_t* sObjName,
+ FXJSOBJTYPE eObjType,
+ FXJS_CONSTRUCTOR pConstructor,
+ FXJS_DESTRUCTOR pDestructor)
: objName(sObjName),
objType(eObjType),
m_pConstructor(pConstructor),
@@ -51,12 +61,11 @@ class CFXJS_ObjDefintion {
m_bSetAsGlobalObject = TRUE;
}
}
- ~CFXJS_ObjDefintion() {
+ ~CFXJS_ObjDefinition() {
m_objTemplate.Reset();
m_StaticObj.Reset();
}
- public:
const wchar_t* objName;
FXJSOBJTYPE objType;
FXJS_CONSTRUCTOR m_pConstructor;
@@ -79,9 +88,16 @@ void FXJS_ArrayBufferAllocator::Free(void* data, size_t length) {
free(data);
}
-void FXJS_PrepareIsolate(v8::Isolate* pIsolate) {
+// static
+void FXJS_PerIsolateData::SetUp(v8::Isolate* pIsolate) {
if (!pIsolate->GetData(g_embedderDataSlot))
- pIsolate->SetData(g_embedderDataSlot, new CFX_PtrArray());
+ pIsolate->SetData(g_embedderDataSlot, new FXJS_PerIsolateData());
+}
+
+// static
+FXJS_PerIsolateData* FXJS_PerIsolateData::Get(v8::Isolate* pIsolate) {
+ return static_cast<FXJS_PerIsolateData*>(
+ pIsolate->GetData(g_embedderDataSlot));
}
int FXJS_DefineObj(v8::Isolate* pIsolate,
@@ -92,12 +108,11 @@ int FXJS_DefineObj(v8::Isolate* pIsolate,
v8::Isolate::Scope isolate_scope(pIsolate);
v8::HandleScope handle_scope(pIsolate);
- FXJS_PrepareIsolate(pIsolate);
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- CFXJS_ObjDefintion* pObjDef = new CFXJS_ObjDefintion(
- pIsolate, sObjName, eObjType, pConstructor, pDestructor);
- pArray->Add(pObjDef);
- return pArray->GetSize() - 1;
+ FXJS_PerIsolateData::SetUp(pIsolate);
+ FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate);
+ pData->m_ObjectDefnArray.Add(new CFXJS_ObjDefinition(
+ pIsolate, sObjName, eObjType, pConstructor, pDestructor));
+ return pData->m_ObjectDefnArray.GetSize() - 1;
}
void FXJS_DefineObjMethod(v8::Isolate* pIsolate,
@@ -107,14 +122,12 @@ void FXJS_DefineObjMethod(v8::Isolate* pIsolate,
v8::Isolate::Scope isolate_scope(pIsolate);
v8::HandleScope handle_scope(pIsolate);
- CFX_WideString ws = CFX_WideString(sMethodName);
- CFX_ByteString bsMethodName = ws.UTF8Encode();
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
-
- // Note: GetAt() halts if out-of-range even in release builds.
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
+ CFX_ByteString bsMethodName = CFX_WideString(sMethodName).UTF8Encode();
+ CFXJS_ObjDefinition* pObjDef =
+ CFXJS_ObjDefinition::ForID(pIsolate, nObjDefnID);
v8::Local<v8::ObjectTemplate> objTemp =
v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
+
objTemp->Set(
v8::String::NewFromUtf8(pIsolate, bsMethodName.c_str(),
v8::NewStringType::kNormal).ToLocalChecked(),
@@ -130,12 +143,9 @@ void FXJS_DefineObjProperty(v8::Isolate* pIsolate,
v8::Isolate::Scope isolate_scope(pIsolate);
v8::HandleScope handle_scope(pIsolate);
- CFX_WideString ws = CFX_WideString(sPropName);
- CFX_ByteString bsPropertyName = ws.UTF8Encode();
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
-
- // Note: GetAt() halts if out-of-range even in release builds.
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
+ CFX_ByteString bsPropertyName = CFX_WideString(sPropName).UTF8Encode();
+ CFXJS_ObjDefinition* pObjDef =
+ CFXJS_ObjDefinition::ForID(pIsolate, nObjDefnID);
v8::Local<v8::ObjectTemplate> objTemp =
v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
objTemp->SetAccessor(
@@ -153,10 +163,9 @@ void FXJS_DefineObjAllProperties(v8::Isolate* pIsolate,
v8::NamedPropertyDeleterCallback pPropDel) {
v8::Isolate::Scope isolate_scope(pIsolate);
v8::HandleScope handle_scope(pIsolate);
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- // Note: GetAt() halts if out-of-range even in release builds.
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
+ CFXJS_ObjDefinition* pObjDef =
+ CFXJS_ObjDefinition::ForID(pIsolate, nObjDefnID);
v8::Local<v8::ObjectTemplate> objTemp =
v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
objTemp->SetNamedPropertyHandler(pPropGet, pPropPut, pPropQurey, pPropDel);
@@ -170,12 +179,9 @@ void FXJS_DefineObjConst(v8::Isolate* pIsolate,
v8::Isolate::Scope isolate_scope(pIsolate);
v8::HandleScope handle_scope(pIsolate);
- CFX_WideString ws = CFX_WideString(sConstName);
- CFX_ByteString bsConstName = ws.UTF8Encode();
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
-
- // Note: GetAt() halts if out-of-range even in release builds.
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
+ CFX_ByteString bsConstName = CFX_WideString(sConstName).UTF8Encode();
+ CFXJS_ObjDefinition* pObjDef =
+ CFXJS_ObjDefinition::ForID(pIsolate, nObjDefnID);
v8::Local<v8::ObjectTemplate> objTemp =
v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
objTemp->Set(pIsolate, bsConstName.c_str(), pDefault);
@@ -187,10 +193,9 @@ static v8::Global<v8::ObjectTemplate>& _getGlobalObjectTemplate(
v8::Isolate::Scope isolate_scope(pIsolate);
v8::HandleScope handle_scope(pIsolate);
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- ASSERT(pArray != NULL);
- for (int i = 0; i < pArray->GetSize(); i++) {
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(i);
+ int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
+ for (int i = 0; i < maxID; ++i) {
+ CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, i);
if (pObjDef->m_bSetAsGlobalObject)
return pObjDef->m_objTemplate;
}
@@ -204,9 +209,7 @@ void FXJS_DefineGlobalMethod(v8::Isolate* pIsolate,
v8::Isolate::Scope isolate_scope(pIsolate);
v8::HandleScope handle_scope(pIsolate);
- CFX_WideString ws = CFX_WideString(sMethodName);
- CFX_ByteString bsMethodName = ws.UTF8Encode();
-
+ CFX_ByteString bsMethodName = CFX_WideString(sMethodName).UTF8Encode();
v8::Local<v8::FunctionTemplate> funTempl =
v8::FunctionTemplate::New(pIsolate, pMethodCall);
v8::Local<v8::ObjectTemplate> objTemp;
@@ -264,15 +267,13 @@ void FXJS_InitializeRuntime(v8::Isolate* pIsolate,
v8::Local<v8::ObjectTemplate>::New(pIsolate, globalObjTemp));
v8::Context::Scope context_scope(v8Context);
- v8::Local<v8::External> ptr = v8::External::New(pIsolate, pFXRuntime);
- v8Context->SetEmbedderData(1, ptr);
+ FXJS_PerIsolateData::SetUp(pIsolate);
+ FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate);
+ pData->m_pFXJSRuntime = pFXRuntime;
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- if (!pArray)
- return;
-
- for (int i = 0; i < pArray->GetSize(); i++) {
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(i);
+ int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
+ for (int i = 0; i < maxID; ++i) {
+ CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, i);
CFX_WideString ws = CFX_WideString(pObjDef->objName);
CFX_ByteString bs = ws.UTF8Encode();
v8::Local<v8::String> objName =
@@ -283,14 +284,11 @@ void FXJS_InitializeRuntime(v8::Isolate* pIsolate,
if (pObjDef->objType == FXJS_DYNAMIC) {
// Document is set as global object, need to construct it first.
if (ws.Equal(L"Document")) {
- CFXJS_PrivateData* pPrivateData = new CFXJS_PrivateData;
- pPrivateData->ObjDefID = i;
-
v8Context->Global()
->GetPrototype()
->ToObject(v8Context)
.ToLocalChecked()
- ->SetAlignedPointerInInternalField(0, pPrivateData);
+ ->SetAlignedPointerInInternalField(0, new CFXJS_PrivateData(i));
if (pObjDef->m_pConstructor)
pObjDef->m_pConstructor(context, v8Context->Global()
@@ -319,12 +317,13 @@ void FXJS_ReleaseRuntime(v8::Isolate* pIsolate,
v8::Local<v8::Context>::New(pIsolate, v8PersistentContext);
v8::Context::Scope context_scope(context);
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- if (!pArray)
+ FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate);
+ if (!pData)
return;
- for (int i = 0; i < pArray->GetSize(); i++) {
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(i);
+ int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
+ for (int i = 0; i < maxID; ++i) {
+ CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, i);
if (!pObjDef->m_StaticObj.IsEmpty()) {
v8::Local<v8::Object> pObj =
v8::Local<v8::Object>::New(pIsolate, pObjDef->m_StaticObj);
@@ -334,8 +333,9 @@ void FXJS_ReleaseRuntime(v8::Isolate* pIsolate,
}
delete pObjDef;
}
- delete pArray;
- pIsolate->SetData(g_embedderDataSlot, NULL);
+
+ pIsolate->SetData(g_embedderDataSlot, nullptr);
+ delete pData;
}
void FXJS_Initialize(unsigned int embedderDataSlot) {
@@ -382,7 +382,7 @@ v8::Local<v8::Object> FXJS_NewFxDynamicObj(v8::Isolate* pIsolate,
int nObjDefnID) {
v8::Isolate::Scope isolate_scope(pIsolate);
v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
- if (-1 == nObjDefnID) {
+ if (nObjDefnID == -1) {
v8::Local<v8::ObjectTemplate> objTempl = v8::ObjectTemplate::New(pIsolate);
v8::Local<v8::Object> obj;
if (objTempl->NewInstance(context).ToLocal(&obj))
@@ -390,13 +390,15 @@ v8::Local<v8::Object> FXJS_NewFxDynamicObj(v8::Isolate* pIsolate,
return v8::Local<v8::Object>();
}
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- if (!pArray)
+ FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(pIsolate);
+ if (!pData)
return v8::Local<v8::Object>();
- if (nObjDefnID < 0 || nObjDefnID >= pArray->GetSize())
+ if (nObjDefnID < 0 || nObjDefnID >= CFXJS_ObjDefinition::MaxID(pIsolate))
return v8::Local<v8::Object>();
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(nObjDefnID);
+
+ CFXJS_ObjDefinition* pObjDef =
+ CFXJS_ObjDefinition::ForID(pIsolate, nObjDefnID);
v8::Local<v8::ObjectTemplate> objTemp =
v8::Local<v8::ObjectTemplate>::New(pIsolate, pObjDef->m_objTemplate);
@@ -404,10 +406,7 @@ v8::Local<v8::Object> FXJS_NewFxDynamicObj(v8::Isolate* pIsolate,
if (!objTemp->NewInstance(context).ToLocal(&obj))
return v8::Local<v8::Object>();
- CFXJS_PrivateData* pPrivateData = new CFXJS_PrivateData;
- pPrivateData->ObjDefID = nObjDefnID;
-
- obj->SetAlignedPointerInInternalField(0, pPrivateData);
+ obj->SetAlignedPointerInInternalField(0, new CFXJS_PrivateData(nObjDefnID));
if (pObjDef->m_pConstructor)
pObjDef->m_pConstructor(
pJSContext, obj,
@@ -417,12 +416,11 @@ v8::Local<v8::Object> FXJS_NewFxDynamicObj(v8::Isolate* pIsolate,
}
v8::Local<v8::Object> FXJS_GetThisObj(v8::Isolate* pIsolate) {
- // Return the global object.
v8::Isolate::Scope isolate_scope(pIsolate);
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- if (!pArray)
+ if (!FXJS_PerIsolateData::Get(pIsolate))
return v8::Local<v8::Object>();
+ // Return the global object.
v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
return context->Global()->GetPrototype()->ToObject(context).ToLocalChecked();
}
@@ -448,12 +446,12 @@ v8::Isolate* FXJS_GetRuntime(v8::Local<v8::Object> pObj) {
int FXJS_GetObjDefnID(v8::Isolate* pIsolate, const wchar_t* pObjName) {
v8::Isolate::Scope isolate_scope(pIsolate);
- CFX_PtrArray* pArray = (CFX_PtrArray*)pIsolate->GetData(g_embedderDataSlot);
- if (!pArray)
+ if (!FXJS_PerIsolateData::Get(pIsolate))
return -1;
- for (int i = 0; i < pArray->GetSize(); i++) {
- CFXJS_ObjDefintion* pObjDef = (CFXJS_ObjDefintion*)pArray->GetAt(i);
+ int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
+ for (int i = 0; i < maxID; ++i) {
+ CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, i);
if (FXSYS_wcscmp(pObjDef->objName, pObjName) == 0)
return i;
}
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