| // Copyright 2011 the V8 project authors. All rights reserved. |
| // |
| // Tests for heap profiler |
| |
| #include "v8.h" |
| |
| #include "cctest.h" |
| #include "heap-profiler.h" |
| #include "snapshot.h" |
| #include "utils-inl.h" |
| #include "../include/v8-profiler.h" |
| |
| namespace { |
| |
| class NamedEntriesDetector { |
| public: |
| NamedEntriesDetector() |
| : has_A2(false), has_B2(false), has_C2(false) { |
| } |
| |
| void Apply(i::HeapEntry** entry_ptr) { |
| if (IsReachableNodeWithName(*entry_ptr, "A2")) has_A2 = true; |
| if (IsReachableNodeWithName(*entry_ptr, "B2")) has_B2 = true; |
| if (IsReachableNodeWithName(*entry_ptr, "C2")) has_C2 = true; |
| } |
| |
| static bool IsReachableNodeWithName(i::HeapEntry* entry, const char* name) { |
| return strcmp(name, entry->name()) == 0 && entry->painted_reachable(); |
| } |
| |
| bool has_A2; |
| bool has_B2; |
| bool has_C2; |
| }; |
| |
| } // namespace |
| |
| |
| static const v8::HeapGraphNode* GetGlobalObject( |
| const v8::HeapSnapshot* snapshot) { |
| CHECK_EQ(2, snapshot->GetRoot()->GetChildrenCount()); |
| const v8::HeapGraphNode* global_obj = |
| snapshot->GetRoot()->GetChild(0)->GetToNode(); |
| CHECK_EQ(0, strncmp("Object", const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global_obj))->name(), 6)); |
| return global_obj; |
| } |
| |
| |
| static const v8::HeapGraphNode* GetProperty(const v8::HeapGraphNode* node, |
| v8::HeapGraphEdge::Type type, |
| const char* name) { |
| for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = node->GetChild(i); |
| v8::String::AsciiValue prop_name(prop->GetName()); |
| if (prop->GetType() == type && strcmp(name, *prop_name) == 0) |
| return prop->GetToNode(); |
| } |
| return NULL; |
| } |
| |
| |
| static bool HasString(const v8::HeapGraphNode* node, const char* contents) { |
| for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = node->GetChild(i); |
| const v8::HeapGraphNode* node = prop->GetToNode(); |
| if (node->GetType() == v8::HeapGraphNode::kString) { |
| v8::String::AsciiValue node_name(node->GetName()); |
| if (strcmp(contents, *node_name) == 0) return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| TEST(HeapSnapshot) { |
| v8::HandleScope scope; |
| LocalContext env2; |
| |
| CompileRun( |
| "function A2() {}\n" |
| "function B2(x) { return function() { return typeof x; }; }\n" |
| "function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n" |
| "var a2 = new A2();\n" |
| "var b2_1 = new B2(a2), b2_2 = new B2(a2);\n" |
| "var c2 = new C2(a2);"); |
| const v8::HeapSnapshot* snapshot_env2 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("env2")); |
| i::HeapSnapshot* i_snapshot_env2 = |
| const_cast<i::HeapSnapshot*>( |
| reinterpret_cast<const i::HeapSnapshot*>(snapshot_env2)); |
| const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2); |
| // Paint all nodes reachable from global object. |
| i_snapshot_env2->ClearPaint(); |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global_env2))->PaintAllReachable(); |
| |
| // Verify, that JS global object of env2 has '..2' properties. |
| const v8::HeapGraphNode* a2_node = |
| GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "a2"); |
| CHECK_NE(NULL, a2_node); |
| CHECK_NE( |
| NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "b2_1")); |
| CHECK_NE( |
| NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "b2_2")); |
| CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "c2")); |
| |
| NamedEntriesDetector det; |
| i_snapshot_env2->IterateEntries(&det); |
| CHECK(det.has_A2); |
| CHECK(det.has_B2); |
| CHECK(det.has_C2); |
| } |
| |
| |
| TEST(HeapSnapshotObjectSizes) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| // -a-> X1 --a |
| // x -b-> X2 <-| |
| CompileRun( |
| "function X(a, b) { this.a = a; this.b = b; }\n" |
| "x = new X(new X(), new X());\n" |
| "(function() { x.a.a = x.b; })();"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("sizes")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* x = |
| GetProperty(global, v8::HeapGraphEdge::kShortcut, "x"); |
| CHECK_NE(NULL, x); |
| const v8::HeapGraphNode* x1 = |
| GetProperty(x, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, x1); |
| const v8::HeapGraphNode* x2 = |
| GetProperty(x, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, x2); |
| |
| // Test approximate sizes. |
| CHECK_EQ(x->GetSelfSize() * 3, x->GetRetainedSize(false)); |
| CHECK_EQ(x1->GetSelfSize(), x1->GetRetainedSize(false)); |
| CHECK_EQ(x2->GetSelfSize(), x2->GetRetainedSize(false)); |
| // Test exact sizes. |
| CHECK_EQ(x->GetSelfSize() * 3, x->GetRetainedSize(true)); |
| CHECK_EQ(x1->GetSelfSize(), x1->GetRetainedSize(true)); |
| CHECK_EQ(x2->GetSelfSize(), x2->GetRetainedSize(true)); |
| } |
| |
| |
| TEST(HeapSnapshotEntryChildren) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function A() { }\n" |
| "a = new A;"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("children")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = global->GetChild(i); |
| CHECK_EQ(global, prop->GetFromNode()); |
| } |
| const v8::HeapGraphNode* a = |
| GetProperty(global, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a); |
| for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = a->GetChild(i); |
| CHECK_EQ(a, prop->GetFromNode()); |
| } |
| } |
| |
| |
| TEST(HeapSnapshotCodeObjects) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function lazy(x) { return x - 1; }\n" |
| "function compiled(x) { return x + 1; }\n" |
| "var anonymous = (function() { return function() { return 0; } })();\n" |
| "compiled(1)"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("code")); |
| |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* compiled = |
| GetProperty(global, v8::HeapGraphEdge::kShortcut, "compiled"); |
| CHECK_NE(NULL, compiled); |
| CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType()); |
| const v8::HeapGraphNode* lazy = |
| GetProperty(global, v8::HeapGraphEdge::kShortcut, "lazy"); |
| CHECK_NE(NULL, lazy); |
| CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType()); |
| const v8::HeapGraphNode* anonymous = |
| GetProperty(global, v8::HeapGraphEdge::kShortcut, "anonymous"); |
| CHECK_NE(NULL, anonymous); |
| CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType()); |
| v8::String::AsciiValue anonymous_name(anonymous->GetName()); |
| CHECK_EQ("", *anonymous_name); |
| |
| // Find references to code. |
| const v8::HeapGraphNode* compiled_code = |
| GetProperty(compiled, v8::HeapGraphEdge::kInternal, "shared"); |
| CHECK_NE(NULL, compiled_code); |
| const v8::HeapGraphNode* lazy_code = |
| GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared"); |
| CHECK_NE(NULL, lazy_code); |
| |
| // Verify that non-compiled code doesn't contain references to "x" |
| // literal, while compiled code does. The scope info is stored in FixedArray |
| // objects attached to the SharedFunctionInfo. |
| bool compiled_references_x = false, lazy_references_x = false; |
| for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = compiled_code->GetChild(i); |
| const v8::HeapGraphNode* node = prop->GetToNode(); |
| if (node->GetType() == v8::HeapGraphNode::kArray) { |
| if (HasString(node, "x")) { |
| compiled_references_x = true; |
| break; |
| } |
| } |
| } |
| for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = lazy_code->GetChild(i); |
| const v8::HeapGraphNode* node = prop->GetToNode(); |
| if (node->GetType() == v8::HeapGraphNode::kArray) { |
| if (HasString(node, "x")) { |
| lazy_references_x = true; |
| break; |
| } |
| } |
| } |
| CHECK(compiled_references_x); |
| CHECK(!lazy_references_x); |
| } |
| |
| |
| TEST(HeapSnapshotHeapNumbers) { |
| v8::HandleScope scope; |
| LocalContext env; |
| CompileRun( |
| "a = 1; // a is Smi\n" |
| "b = 2.5; // b is HeapNumber"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("numbers")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_EQ(NULL, GetProperty(global, v8::HeapGraphEdge::kShortcut, "a")); |
| const v8::HeapGraphNode* b = |
| GetProperty(global, v8::HeapGraphEdge::kShortcut, "b"); |
| CHECK_NE(NULL, b); |
| CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType()); |
| } |
| |
| |
| TEST(HeapSnapshotInternalReferences) { |
| v8::HandleScope scope; |
| v8::Local<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New(); |
| global_template->SetInternalFieldCount(2); |
| LocalContext env(NULL, global_template); |
| v8::Handle<v8::Object> global_proxy = env->Global(); |
| v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>(); |
| CHECK_EQ(2, global->InternalFieldCount()); |
| v8::Local<v8::Object> obj = v8::Object::New(); |
| global->SetInternalField(0, v8_num(17)); |
| global->SetInternalField(1, obj); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("internals")); |
| const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot); |
| // The first reference will not present, because it's a Smi. |
| CHECK_EQ(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0")); |
| // The second reference is to an object. |
| CHECK_NE(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "1")); |
| } |
| |
| |
| // Trying to introduce a check helper for uint64_t causes many |
| // overloading ambiguities, so it seems easier just to cast |
| // them to a signed type. |
| #define CHECK_EQ_UINT64_T(a, b) \ |
| CHECK_EQ(static_cast<int64_t>(a), static_cast<int64_t>(b)) |
| #define CHECK_NE_UINT64_T(a, b) \ |
| CHECK((a) != (b)) // NOLINT |
| |
| TEST(HeapEntryIdsAndGC) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function A() {}\n" |
| "function B(x) { this.x = x; }\n" |
| "var a = new A();\n" |
| "var b = new B(a);"); |
| const v8::HeapSnapshot* snapshot1 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("s1")); |
| |
| HEAP->CollectAllGarbage(true); // Enforce compaction. |
| |
| const v8::HeapSnapshot* snapshot2 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("s2")); |
| |
| const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1); |
| const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2); |
| CHECK_NE_UINT64_T(0, global1->GetId()); |
| CHECK_EQ_UINT64_T(global1->GetId(), global2->GetId()); |
| const v8::HeapGraphNode* A1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "A"); |
| CHECK_NE(NULL, A1); |
| const v8::HeapGraphNode* A2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "A"); |
| CHECK_NE(NULL, A2); |
| CHECK_NE_UINT64_T(0, A1->GetId()); |
| CHECK_EQ_UINT64_T(A1->GetId(), A2->GetId()); |
| const v8::HeapGraphNode* B1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "B"); |
| CHECK_NE(NULL, B1); |
| const v8::HeapGraphNode* B2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "B"); |
| CHECK_NE(NULL, B2); |
| CHECK_NE_UINT64_T(0, B1->GetId()); |
| CHECK_EQ_UINT64_T(B1->GetId(), B2->GetId()); |
| const v8::HeapGraphNode* a1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a1); |
| const v8::HeapGraphNode* a2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, a2); |
| CHECK_NE_UINT64_T(0, a1->GetId()); |
| CHECK_EQ_UINT64_T(a1->GetId(), a2->GetId()); |
| const v8::HeapGraphNode* b1 = |
| GetProperty(global1, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, b1); |
| const v8::HeapGraphNode* b2 = |
| GetProperty(global2, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, b2); |
| CHECK_NE_UINT64_T(0, b1->GetId()); |
| CHECK_EQ_UINT64_T(b1->GetId(), b2->GetId()); |
| } |
| |
| |
| TEST(HeapSnapshotRootPreservedAfterSorting) { |
| v8::HandleScope scope; |
| LocalContext env; |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("s")); |
| const v8::HeapGraphNode* root1 = snapshot->GetRoot(); |
| const_cast<i::HeapSnapshot*>(reinterpret_cast<const i::HeapSnapshot*>( |
| snapshot))->GetSortedEntriesList(); |
| const v8::HeapGraphNode* root2 = snapshot->GetRoot(); |
| CHECK_EQ(root1, root2); |
| } |
| |
| |
| TEST(HeapEntryDominator) { |
| // The graph looks like this: |
| // |
| // -> node1 |
| // a |^ |
| // -> node5 ba |
| // a v| |
| // node6 -> node2 |
| // b a |^ |
| // -> node4 ba |
| // b v| |
| // -> node3 |
| // |
| // The dominator for all nodes is node6. |
| |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function X(a, b) { this.a = a; this.b = b; }\n" |
| "node6 = new X(new X(new X()), new X(new X(),new X()));\n" |
| "(function(){\n" |
| "node6.a.a.b = node6.b.a; // node1 -> node2\n" |
| "node6.b.a.a = node6.a.a; // node2 -> node1\n" |
| "node6.b.a.b = node6.b.b; // node2 -> node3\n" |
| "node6.b.b.a = node6.b.a; // node3 -> node2\n" |
| "})();"); |
| |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("dominators")); |
| |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| const v8::HeapGraphNode* node6 = |
| GetProperty(global, v8::HeapGraphEdge::kShortcut, "node6"); |
| CHECK_NE(NULL, node6); |
| const v8::HeapGraphNode* node5 = |
| GetProperty(node6, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, node5); |
| const v8::HeapGraphNode* node4 = |
| GetProperty(node6, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, node4); |
| const v8::HeapGraphNode* node3 = |
| GetProperty(node4, v8::HeapGraphEdge::kProperty, "b"); |
| CHECK_NE(NULL, node3); |
| const v8::HeapGraphNode* node2 = |
| GetProperty(node4, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, node2); |
| const v8::HeapGraphNode* node1 = |
| GetProperty(node5, v8::HeapGraphEdge::kProperty, "a"); |
| CHECK_NE(NULL, node1); |
| |
| CHECK_EQ(node6, node1->GetDominatorNode()); |
| CHECK_EQ(node6, node2->GetDominatorNode()); |
| CHECK_EQ(node6, node3->GetDominatorNode()); |
| CHECK_EQ(node6, node4->GetDominatorNode()); |
| CHECK_EQ(node6, node5->GetDominatorNode()); |
| } |
| |
| |
| namespace { |
| |
| class TestJSONStream : public v8::OutputStream { |
| public: |
| TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {} |
| explicit TestJSONStream(int abort_countdown) |
| : eos_signaled_(0), abort_countdown_(abort_countdown) {} |
| virtual ~TestJSONStream() {} |
| virtual void EndOfStream() { ++eos_signaled_; } |
| virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) { |
| if (abort_countdown_ > 0) --abort_countdown_; |
| if (abort_countdown_ == 0) return kAbort; |
| CHECK_GT(chars_written, 0); |
| i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0'); |
| memcpy(chunk.start(), buffer, chars_written); |
| return kContinue; |
| } |
| void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); } |
| int eos_signaled() { return eos_signaled_; } |
| int size() { return buffer_.size(); } |
| private: |
| i::Collector<char> buffer_; |
| int eos_signaled_; |
| int abort_countdown_; |
| }; |
| |
| class AsciiResource: public v8::String::ExternalAsciiStringResource { |
| public: |
| explicit AsciiResource(i::Vector<char> string): data_(string.start()) { |
| length_ = string.length(); |
| } |
| virtual const char* data() const { return data_; } |
| virtual size_t length() const { return length_; } |
| private: |
| const char* data_; |
| size_t length_; |
| }; |
| |
| } // namespace |
| |
| TEST(HeapSnapshotJSONSerialization) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| #define STRING_LITERAL_FOR_TEST \ |
| "\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\"" |
| CompileRun( |
| "function A(s) { this.s = s; }\n" |
| "function B(x) { this.x = x; }\n" |
| "var a = new A(" STRING_LITERAL_FOR_TEST ");\n" |
| "var b = new B(a);"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("json")); |
| TestJSONStream stream; |
| snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON); |
| CHECK_GT(stream.size(), 0); |
| CHECK_EQ(1, stream.eos_signaled()); |
| i::ScopedVector<char> json(stream.size()); |
| stream.WriteTo(json); |
| |
| // Verify that snapshot string is valid JSON. |
| AsciiResource json_res(json); |
| v8::Local<v8::String> json_string = v8::String::NewExternal(&json_res); |
| env->Global()->Set(v8_str("json_snapshot"), json_string); |
| v8::Local<v8::Value> snapshot_parse_result = CompileRun( |
| "var parsed = JSON.parse(json_snapshot); true;"); |
| CHECK(!snapshot_parse_result.IsEmpty()); |
| |
| // Verify that snapshot object has required fields. |
| v8::Local<v8::Object> parsed_snapshot = |
| env->Global()->Get(v8_str("parsed"))->ToObject(); |
| CHECK(parsed_snapshot->Has(v8_str("snapshot"))); |
| CHECK(parsed_snapshot->Has(v8_str("nodes"))); |
| CHECK(parsed_snapshot->Has(v8_str("strings"))); |
| |
| // Get node and edge "member" offsets. |
| v8::Local<v8::Value> meta_analysis_result = CompileRun( |
| "var parsed_meta = parsed.nodes[0];\n" |
| "var children_count_offset =" |
| " parsed_meta.fields.indexOf('children_count');\n" |
| "var children_offset =" |
| " parsed_meta.fields.indexOf('children');\n" |
| "var children_meta =" |
| " parsed_meta.types[children_offset];\n" |
| "var child_fields_count = children_meta.fields.length;\n" |
| "var child_type_offset =" |
| " children_meta.fields.indexOf('type');\n" |
| "var child_name_offset =" |
| " children_meta.fields.indexOf('name_or_index');\n" |
| "var child_to_node_offset =" |
| " children_meta.fields.indexOf('to_node');\n" |
| "var property_type =" |
| " children_meta.types[child_type_offset].indexOf('property');\n" |
| "var shortcut_type =" |
| " children_meta.types[child_type_offset].indexOf('shortcut');"); |
| CHECK(!meta_analysis_result.IsEmpty()); |
| |
| // A helper function for processing encoded nodes. |
| CompileRun( |
| "function GetChildPosByProperty(pos, prop_name, prop_type) {\n" |
| " var nodes = parsed.nodes;\n" |
| " var strings = parsed.strings;\n" |
| " for (var i = 0,\n" |
| " count = nodes[pos + children_count_offset] * child_fields_count;\n" |
| " i < count; i += child_fields_count) {\n" |
| " var child_pos = pos + children_offset + i;\n" |
| " if (nodes[child_pos + child_type_offset] === prop_type\n" |
| " && strings[nodes[child_pos + child_name_offset]] === prop_name)\n" |
| " return nodes[child_pos + child_to_node_offset];\n" |
| " }\n" |
| " return null;\n" |
| "}\n"); |
| // Get the string index using the path: <root> -> <global>.b.x.s |
| v8::Local<v8::Value> string_obj_pos_val = CompileRun( |
| "GetChildPosByProperty(\n" |
| " GetChildPosByProperty(\n" |
| " GetChildPosByProperty(" |
| " parsed.nodes[1 + children_offset + child_to_node_offset]," |
| " \"b\",shortcut_type),\n" |
| " \"x\", property_type)," |
| " \"s\", property_type)"); |
| CHECK(!string_obj_pos_val.IsEmpty()); |
| int string_obj_pos = |
| static_cast<int>(string_obj_pos_val->ToNumber()->Value()); |
| v8::Local<v8::Object> nodes_array = |
| parsed_snapshot->Get(v8_str("nodes"))->ToObject(); |
| int string_index = static_cast<int>( |
| nodes_array->Get(string_obj_pos + 1)->ToNumber()->Value()); |
| CHECK_GT(string_index, 0); |
| v8::Local<v8::Object> strings_array = |
| parsed_snapshot->Get(v8_str("strings"))->ToObject(); |
| v8::Local<v8::String> string = strings_array->Get(string_index)->ToString(); |
| v8::Local<v8::String> ref_string = |
| CompileRun(STRING_LITERAL_FOR_TEST)->ToString(); |
| #undef STRING_LITERAL_FOR_TEST |
| CHECK_EQ(*v8::String::Utf8Value(ref_string), |
| *v8::String::Utf8Value(string)); |
| } |
| |
| |
| TEST(HeapSnapshotJSONSerializationAborting) { |
| v8::HandleScope scope; |
| LocalContext env; |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("abort")); |
| TestJSONStream stream(5); |
| snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON); |
| CHECK_GT(stream.size(), 0); |
| CHECK_EQ(0, stream.eos_signaled()); |
| } |
| |
| |
| TEST(HeapSnapshotGetNodeById) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("id")); |
| const v8::HeapGraphNode* root = snapshot->GetRoot(); |
| CHECK_EQ(root, snapshot->GetNodeById(root->GetId())); |
| for (int i = 0, count = root->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphEdge* prop = root->GetChild(i); |
| CHECK_EQ( |
| prop->GetToNode(), snapshot->GetNodeById(prop->GetToNode()->GetId())); |
| } |
| // Check a big id, which should not exist yet. |
| CHECK_EQ(NULL, snapshot->GetNodeById(0x1000000UL)); |
| } |
| |
| |
| namespace { |
| |
| class TestActivityControl : public v8::ActivityControl { |
| public: |
| explicit TestActivityControl(int abort_count) |
| : done_(0), total_(0), abort_count_(abort_count) {} |
| ControlOption ReportProgressValue(int done, int total) { |
| done_ = done; |
| total_ = total; |
| return --abort_count_ != 0 ? kContinue : kAbort; |
| } |
| int done() { return done_; } |
| int total() { return total_; } |
| |
| private: |
| int done_; |
| int total_; |
| int abort_count_; |
| }; |
| } |
| |
| TEST(TakeHeapSnapshotAborting) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| const int snapshots_count = v8::HeapProfiler::GetSnapshotsCount(); |
| TestActivityControl aborting_control(3); |
| const v8::HeapSnapshot* no_snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("abort"), |
| v8::HeapSnapshot::kFull, |
| &aborting_control); |
| CHECK_EQ(NULL, no_snapshot); |
| CHECK_EQ(snapshots_count, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_GT(aborting_control.total(), aborting_control.done()); |
| |
| TestActivityControl control(-1); // Don't abort. |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("full"), |
| v8::HeapSnapshot::kFull, |
| &control); |
| CHECK_NE(NULL, snapshot); |
| CHECK_EQ(snapshots_count + 1, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(control.total(), control.done()); |
| CHECK_GT(control.total(), 0); |
| } |
| |
| |
| namespace { |
| |
| class TestRetainedObjectInfo : public v8::RetainedObjectInfo { |
| public: |
| TestRetainedObjectInfo(int hash, |
| const char* label, |
| intptr_t element_count = -1, |
| intptr_t size = -1) |
| : disposed_(false), |
| hash_(hash), |
| label_(label), |
| element_count_(element_count), |
| size_(size) { |
| instances.Add(this); |
| } |
| virtual ~TestRetainedObjectInfo() {} |
| virtual void Dispose() { |
| CHECK(!disposed_); |
| disposed_ = true; |
| } |
| virtual bool IsEquivalent(RetainedObjectInfo* other) { |
| return GetHash() == other->GetHash(); |
| } |
| virtual intptr_t GetHash() { return hash_; } |
| virtual const char* GetLabel() { return label_; } |
| virtual intptr_t GetElementCount() { return element_count_; } |
| virtual intptr_t GetSizeInBytes() { return size_; } |
| bool disposed() { return disposed_; } |
| |
| static v8::RetainedObjectInfo* WrapperInfoCallback( |
| uint16_t class_id, v8::Handle<v8::Value> wrapper) { |
| if (class_id == 1) { |
| if (wrapper->IsString()) { |
| v8::String::AsciiValue ascii(wrapper); |
| if (strcmp(*ascii, "AAA") == 0) |
| return new TestRetainedObjectInfo(1, "aaa", 100); |
| else if (strcmp(*ascii, "BBB") == 0) |
| return new TestRetainedObjectInfo(1, "aaa", 100); |
| } |
| } else if (class_id == 2) { |
| if (wrapper->IsString()) { |
| v8::String::AsciiValue ascii(wrapper); |
| if (strcmp(*ascii, "CCC") == 0) |
| return new TestRetainedObjectInfo(2, "ccc"); |
| } |
| } |
| CHECK(false); |
| return NULL; |
| } |
| |
| static i::List<TestRetainedObjectInfo*> instances; |
| |
| private: |
| bool disposed_; |
| int category_; |
| int hash_; |
| const char* label_; |
| intptr_t element_count_; |
| intptr_t size_; |
| }; |
| |
| |
| i::List<TestRetainedObjectInfo*> TestRetainedObjectInfo::instances; |
| } |
| |
| |
| static const v8::HeapGraphNode* GetNode(const v8::HeapGraphNode* parent, |
| v8::HeapGraphNode::Type type, |
| const char* name) { |
| for (int i = 0, count = parent->GetChildrenCount(); i < count; ++i) { |
| const v8::HeapGraphNode* node = parent->GetChild(i)->GetToNode(); |
| if (node->GetType() == type && strcmp(name, |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(node))->name()) == 0) { |
| return node; |
| } |
| } |
| return NULL; |
| } |
| |
| |
| TEST(HeapSnapshotRetainedObjectInfo) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| v8::HeapProfiler::DefineWrapperClass( |
| 1, TestRetainedObjectInfo::WrapperInfoCallback); |
| v8::HeapProfiler::DefineWrapperClass( |
| 2, TestRetainedObjectInfo::WrapperInfoCallback); |
| v8::Persistent<v8::String> p_AAA = |
| v8::Persistent<v8::String>::New(v8_str("AAA")); |
| p_AAA.SetWrapperClassId(1); |
| v8::Persistent<v8::String> p_BBB = |
| v8::Persistent<v8::String>::New(v8_str("BBB")); |
| p_BBB.SetWrapperClassId(1); |
| v8::Persistent<v8::String> p_CCC = |
| v8::Persistent<v8::String>::New(v8_str("CCC")); |
| p_CCC.SetWrapperClassId(2); |
| CHECK_EQ(0, TestRetainedObjectInfo::instances.length()); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("retained")); |
| |
| CHECK_EQ(3, TestRetainedObjectInfo::instances.length()); |
| for (int i = 0; i < TestRetainedObjectInfo::instances.length(); ++i) { |
| CHECK(TestRetainedObjectInfo::instances[i]->disposed()); |
| delete TestRetainedObjectInfo::instances[i]; |
| } |
| |
| const v8::HeapGraphNode* natives = GetNode( |
| snapshot->GetRoot(), v8::HeapGraphNode::kObject, "(Native objects)"); |
| CHECK_NE(NULL, natives); |
| CHECK_EQ(2, natives->GetChildrenCount()); |
| const v8::HeapGraphNode* aaa = GetNode( |
| natives, v8::HeapGraphNode::kNative, "aaa / 100 entries"); |
| CHECK_NE(NULL, aaa); |
| const v8::HeapGraphNode* ccc = GetNode( |
| natives, v8::HeapGraphNode::kNative, "ccc"); |
| CHECK_NE(NULL, ccc); |
| |
| CHECK_EQ(2, aaa->GetChildrenCount()); |
| const v8::HeapGraphNode* n_AAA = GetNode( |
| aaa, v8::HeapGraphNode::kString, "AAA"); |
| CHECK_NE(NULL, n_AAA); |
| const v8::HeapGraphNode* n_BBB = GetNode( |
| aaa, v8::HeapGraphNode::kString, "BBB"); |
| CHECK_NE(NULL, n_BBB); |
| CHECK_EQ(1, ccc->GetChildrenCount()); |
| const v8::HeapGraphNode* n_CCC = GetNode( |
| ccc, v8::HeapGraphNode::kString, "CCC"); |
| CHECK_NE(NULL, n_CCC); |
| |
| CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "native")); |
| CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "native")); |
| CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "native")); |
| } |
| |
| |
| TEST(DeleteAllHeapSnapshots) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| v8::HeapProfiler::DeleteAllSnapshots(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("1"))); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| v8::HeapProfiler::DeleteAllSnapshots(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("1"))); |
| CHECK_NE(NULL, v8::HeapProfiler::TakeSnapshot(v8_str("2"))); |
| CHECK_EQ(2, v8::HeapProfiler::GetSnapshotsCount()); |
| v8::HeapProfiler::DeleteAllSnapshots(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| } |
| |
| |
| TEST(DeleteHeapSnapshot) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| const v8::HeapSnapshot* s1 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("1")); |
| CHECK_NE(NULL, s1); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| unsigned uid1 = s1->GetUid(); |
| CHECK_EQ(s1, v8::HeapProfiler::FindSnapshot(uid1)); |
| const_cast<v8::HeapSnapshot*>(s1)->Delete(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid1)); |
| |
| const v8::HeapSnapshot* s2 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("2")); |
| CHECK_NE(NULL, s2); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| unsigned uid2 = s2->GetUid(); |
| CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2)); |
| CHECK_EQ(s2, v8::HeapProfiler::FindSnapshot(uid2)); |
| const v8::HeapSnapshot* s3 = |
| v8::HeapProfiler::TakeSnapshot(v8_str("3")); |
| CHECK_NE(NULL, s3); |
| CHECK_EQ(2, v8::HeapProfiler::GetSnapshotsCount()); |
| unsigned uid3 = s3->GetUid(); |
| CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3)); |
| CHECK_EQ(s3, v8::HeapProfiler::FindSnapshot(uid3)); |
| const_cast<v8::HeapSnapshot*>(s2)->Delete(); |
| CHECK_EQ(1, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid2)); |
| CHECK_EQ(s3, v8::HeapProfiler::FindSnapshot(uid3)); |
| const_cast<v8::HeapSnapshot*>(s3)->Delete(); |
| CHECK_EQ(0, v8::HeapProfiler::GetSnapshotsCount()); |
| CHECK_EQ(NULL, v8::HeapProfiler::FindSnapshot(uid3)); |
| } |
| |
| |
| TEST(DocumentURL) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("document = { URL:\"abcdefgh\" };"); |
| |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("document")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| CHECK_EQ("Object / abcdefgh", |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global))->name()); |
| } |
| |
| |
| TEST(DocumentWithException) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "this.__defineGetter__(\"document\", function() { throw new Error(); })"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("document")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| CHECK_EQ("Object", |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global))->name()); |
| } |
| |
| |
| TEST(DocumentURLWithException) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function URLWithException() {}\n" |
| "URLWithException.prototype = { get URL() { throw new Error(); } };\n" |
| "document = { URL: new URLWithException() };"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("document")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| CHECK_EQ("Object", |
| const_cast<i::HeapEntry*>( |
| reinterpret_cast<const i::HeapEntry*>(global))->name()); |
| } |
| |
| |
| TEST(NodesIteration) { |
| v8::HandleScope scope; |
| LocalContext env; |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("iteration")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK_NE(NULL, global); |
| // Verify that we can find this object by iteration. |
| const int nodes_count = snapshot->GetNodesCount(); |
| int count = 0; |
| for (int i = 0; i < nodes_count; ++i) { |
| if (snapshot->GetNode(i) == global) |
| ++count; |
| } |
| CHECK_EQ(1, count); |
| } |
| |
| |
| TEST(GetHeapValue) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun("a = { s_prop: \'value\', n_prop: 0.1 };"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("value")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| CHECK(global->GetHeapValue()->IsObject()); |
| v8::Local<v8::Object> js_global = |
| env->Global()->GetPrototype().As<v8::Object>(); |
| CHECK(js_global == global->GetHeapValue()); |
| const v8::HeapGraphNode* obj = GetProperty( |
| global, v8::HeapGraphEdge::kShortcut, "a"); |
| CHECK(obj->GetHeapValue()->IsObject()); |
| v8::Local<v8::Object> js_obj = js_global->Get(v8_str("a")).As<v8::Object>(); |
| CHECK(js_obj == obj->GetHeapValue()); |
| const v8::HeapGraphNode* s_prop = |
| GetProperty(obj, v8::HeapGraphEdge::kProperty, "s_prop"); |
| v8::Local<v8::String> js_s_prop = |
| js_obj->Get(v8_str("s_prop")).As<v8::String>(); |
| CHECK(js_s_prop == s_prop->GetHeapValue()); |
| const v8::HeapGraphNode* n_prop = |
| GetProperty(obj, v8::HeapGraphEdge::kProperty, "n_prop"); |
| v8::Local<v8::Number> js_n_prop = |
| js_obj->Get(v8_str("n_prop")).As<v8::Number>(); |
| CHECK(js_n_prop == n_prop->GetHeapValue()); |
| } |
| |
| |
| TEST(GetHeapValueForDeletedObject) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| // It is impossible to delete a global property, so we are about to delete a |
| // property of the "a" object. Also, the "p" object can't be an empty one |
| // because the empty object is static and isn't actually deleted. |
| CompileRun("a = { p: { r: {} } };"); |
| const v8::HeapSnapshot* snapshot = |
| v8::HeapProfiler::TakeSnapshot(v8_str("snapshot")); |
| const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| const v8::HeapGraphNode* obj = GetProperty( |
| global, v8::HeapGraphEdge::kShortcut, "a"); |
| const v8::HeapGraphNode* prop = GetProperty( |
| obj, v8::HeapGraphEdge::kProperty, "p"); |
| { |
| // Perform the check inside a nested local scope to avoid creating a |
| // reference to the object we are deleting. |
| v8::HandleScope scope; |
| CHECK(prop->GetHeapValue()->IsObject()); |
| } |
| CompileRun("delete a.p;"); |
| CHECK(prop->GetHeapValue()->IsUndefined()); |
| } |
| |
| |
| static int StringCmp(const char* ref, i::String* act) { |
| i::SmartPointer<char> s_act = act->ToCString(); |
| int result = strcmp(ref, *s_act); |
| if (result != 0) |
| fprintf(stderr, "Expected: \"%s\", Actual: \"%s\"\n", ref, *s_act); |
| return result; |
| } |
| |
| |
| TEST(GetConstructorName) { |
| v8::HandleScope scope; |
| LocalContext env; |
| |
| CompileRun( |
| "function Constructor1() {};\n" |
| "var obj1 = new Constructor1();\n" |
| "var Constructor2 = function() {};\n" |
| "var obj2 = new Constructor2();\n" |
| "var obj3 = {};\n" |
| "obj3.constructor = function Constructor3() {};\n" |
| "var obj4 = {};\n" |
| "// Slow properties\n" |
| "for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n" |
| "obj4.constructor = function Constructor4() {};\n" |
| "var obj5 = {};\n" |
| "var obj6 = {};\n" |
| "obj6.constructor = 6;"); |
| v8::Local<v8::Object> js_global = |
| env->Global()->GetPrototype().As<v8::Object>(); |
| v8::Local<v8::Object> obj1 = js_global->Get(v8_str("obj1")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj1 = v8::Utils::OpenHandle(*obj1); |
| CHECK_EQ(0, StringCmp( |
| "Constructor1", i::V8HeapExplorer::GetConstructorName(*js_obj1))); |
| v8::Local<v8::Object> obj2 = js_global->Get(v8_str("obj2")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj2 = v8::Utils::OpenHandle(*obj2); |
| CHECK_EQ(0, StringCmp( |
| "Constructor2", i::V8HeapExplorer::GetConstructorName(*js_obj2))); |
| v8::Local<v8::Object> obj3 = js_global->Get(v8_str("obj3")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj3 = v8::Utils::OpenHandle(*obj3); |
| CHECK_EQ(0, StringCmp( |
| "Constructor3", i::V8HeapExplorer::GetConstructorName(*js_obj3))); |
| v8::Local<v8::Object> obj4 = js_global->Get(v8_str("obj4")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj4 = v8::Utils::OpenHandle(*obj4); |
| CHECK_EQ(0, StringCmp( |
| "Constructor4", i::V8HeapExplorer::GetConstructorName(*js_obj4))); |
| v8::Local<v8::Object> obj5 = js_global->Get(v8_str("obj5")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj5 = v8::Utils::OpenHandle(*obj5); |
| CHECK_EQ(0, StringCmp( |
| "Object", i::V8HeapExplorer::GetConstructorName(*js_obj5))); |
| v8::Local<v8::Object> obj6 = js_global->Get(v8_str("obj6")).As<v8::Object>(); |
| i::Handle<i::JSObject> js_obj6 = v8::Utils::OpenHandle(*obj6); |
| CHECK_EQ(0, StringCmp( |
| "Object", i::V8HeapExplorer::GetConstructorName(*js_obj6))); |
| } |