Version 3.20.15

include/v8-profiler.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 12 matching lines @@
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef V8_V8_PROFILER_H_
 #define V8_V8_PROFILER_H_
 
 #include "v8.h"
 
+#ifdef _WIN32
+// Setup for Windows DLL export/import. See v8.h in this directory for
+// information on how to build/use V8 as a DLL.
+#if defined(BUILDING_V8_SHARED) && defined(USING_V8_SHARED)
+#error both BUILDING_V8_SHARED and USING_V8_SHARED are set - please check the\
+  build configuration to ensure that at most one of these is set
+#endif
+
+#ifdef BUILDING_V8_SHARED
+#define V8EXPORT __declspec(dllexport)
+#elif USING_V8_SHARED
+#define V8EXPORT __declspec(dllimport)
+#else
+#define V8EXPORT
+#endif
+
+#else  // _WIN32
+
+// Setup for Linux shared library export. See v8.h in this directory for
+// information on how to build/use V8 as shared library.
+#if defined(__GNUC__) && ((__GNUC__ >= 4) || \
+    (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)) && defined(V8_SHARED)
+#define V8EXPORT __attribute__ ((visibility("default")))
+#else
+#define V8EXPORT
+#endif
+
+#endif  // _WIN32
+
+
 /**
  * Profiler support for the V8 JavaScript engine.
  */
 namespace v8 {
 
 typedef uint32_t SnapshotObjectId;
 
 /**
  * CpuProfileNode represents a node in a call graph.
  */
-class V8_EXPORT CpuProfileNode {
+class V8EXPORT CpuProfileNode {
  public:
   /** Returns function name (empty string for anonymous functions.) */
   Handle<String> GetFunctionName() const;
 
   /** Returns id of the script where function is located. */
   int GetScriptId() const;
 
   /** Returns resource name for script from where the function originates. */
   Handle<String> GetScriptResourceName() const;
 
@@ skipping 34 matching lines @@
   const CpuProfileNode* GetChild(int index) const;
 
   static const int kNoLineNumberInfo = Message::kNoLineNumberInfo;
 };
 
 
 /**
  * CpuProfile contains a CPU profile in a form of top-down call tree
  * (from main() down to functions that do all the work).
  */
-class V8_EXPORT CpuProfile {
+class V8EXPORT CpuProfile {
  public:
   /** Returns CPU profile UID (assigned by the profiler.) */
   unsigned GetUid() const;
 
   /** Returns CPU profile title. */
   Handle<String> GetTitle() const;
 
   /** Returns the root node of the top down call tree. */
   const CpuProfileNode* GetTopDownRoot() const;
 
   /**
     * Returns number of samples recorded. The samples are not recorded unless
     * |record_samples| parameter of CpuProfiler::StartCpuProfiling is true.
     */
   int GetSamplesCount() const;
 
   /**
     * Returns profile node corresponding to the top frame the sample at
     * the given index.
     */
   const CpuProfileNode* GetSample(int index) const;
 
   /**
-    * Returns time when the profile recording started (in microseconds
-    * since the Epoch).
-    */
-  int64_t GetStartTime() const;
-
-  /**
-    * Returns time when the profile recording was stopped (in microseconds
-    * since the Epoch).
-    */
-  int64_t GetEndTime() const;
-
-  /**
    * Deletes the profile and removes it from CpuProfiler's list.
    * All pointers to nodes previously returned become invalid.
    * Profiles with the same uid but obtained using different
    * security token are not deleted, but become inaccessible
    * using FindProfile method. It is embedder's responsibility
    * to call Delete on these profiles.
    */
   void Delete();
 };
 
 
 /**
  * Interface for controlling CPU profiling. Instance of the
  * profiler can be retrieved using v8::Isolate::GetCpuProfiler.
  */
-class V8_EXPORT CpuProfiler {
+class V8EXPORT CpuProfiler {
  public:
   /**
    * A note on security tokens usage. As scripts from different
    * origins can run inside a single V8 instance, it is possible to
    * have functions from different security contexts intermixed in a
    * single CPU profile. To avoid exposing function names belonging to
    * other contexts, filtering by security token is performed while
    * obtaining profiling results.
    */
 
@@ skipping 40 matching lines @@
 };
 
 
 class HeapGraphNode;
 
 
 /**
  * HeapSnapshotEdge represents a directed connection between heap
  * graph nodes: from retainers to retained nodes.
  */
-class V8_EXPORT HeapGraphEdge {
+class V8EXPORT HeapGraphEdge {
  public:
   enum Type {
     kContextVariable = 0,  // A variable from a function context.
     kElement = 1,          // An element of an array.
     kProperty = 2,         // A named object property.
     kInternal = 3,         // A link that can't be accessed from JS,
                            // thus, its name isn't a real property name
                            // (e.g. parts of a ConsString).
     kHidden = 4,           // A link that is needed for proper sizes
                            // calculation, but may be hidden from user.
@@ skipping 15 matching lines @@
   const HeapGraphNode* GetFromNode() const;
 
   /** Returns destination node. */
   const HeapGraphNode* GetToNode() const;
 };
 
 
 /**
  * HeapGraphNode represents a node in a heap graph.
  */
-class V8_EXPORT HeapGraphNode {
+class V8EXPORT HeapGraphNode {
  public:
   enum Type {
     kHidden = 0,      // Hidden node, may be filtered when shown to user.
     kArray = 1,       // An array of elements.
     kString = 2,      // A string.
     kObject = 3,      // A JS object (except for arrays and strings).
     kCode = 4,        // Compiled code.
     kClosure = 5,     // Function closure.
     kRegExp = 6,      // RegExp.
     kHeapNumber = 7,  // Number stored in the heap.
@@ skipping 31 matching lines @@
    * Finds and returns a value from the heap corresponding to this node,
    * if the value is still reachable.
    */
   Handle<Value> GetHeapValue() const;
 };
 
 
 /**
  * HeapSnapshots record the state of the JS heap at some moment.
  */
-class V8_EXPORT HeapSnapshot {
+class V8EXPORT HeapSnapshot {
  public:
   enum SerializationFormat {
     kJSON = 0  // See format description near 'Serialize' method.
   };
 
   /** Returns heap snapshot UID (assigned by the profiler.) */
   unsigned GetUid() const;
 
   /** Returns heap snapshot title. */
   Handle<String> GetTitle() const;
@@ skipping 49 matching lines @@
   void Serialize(OutputStream* stream, SerializationFormat format) const;
 };
 
 
 class RetainedObjectInfo;
 
 /**
  * Interface for controlling heap profiling. Instance of the
  * profiler can be retrieved using v8::Isolate::GetHeapProfiler.
  */
-class V8_EXPORT HeapProfiler {
+class V8EXPORT HeapProfiler {
  public:
   /**
    * Callback function invoked for obtaining RetainedObjectInfo for
    * the given JavaScript wrapper object. It is prohibited to enter V8
    * while the callback is running: only getters on the handle and
    * GetPointerFromInternalField on the objects are allowed.
    */
   typedef RetainedObjectInfo* (*WrapperInfoCallback)
       (uint16_t class_id, Handle<Value> wrapper);
 
@@ skipping 117 matching lines @@
  * objects for heap snapshots, he can do it in a GC prologue
  * handler, and / or by assigning wrapper class ids in the following way:
  *
  *  1. Bind a callback to class id by calling SetWrapperClassInfoProvider.
  *  2. Call SetWrapperClassId on certain persistent handles.
  *
  * V8 takes ownership of RetainedObjectInfo instances passed to it and
  * keeps them alive only during snapshot collection. Afterwards, they
  * are freed by calling the Dispose class function.
  */
-class V8_EXPORT RetainedObjectInfo {  // NOLINT
+class V8EXPORT RetainedObjectInfo {  // NOLINT
  public:
   /** Called by V8 when it no longer needs an instance. */
   virtual void Dispose() = 0;
 
   /** Returns whether two instances are equivalent. */
   virtual bool IsEquivalent(RetainedObjectInfo* other) = 0;
 
   /**
    * Returns hash value for the instance. Equivalent instances
    * must have the same hash value.
@@ skipping 45 matching lines @@
     : index(index), count(count), size(size) { }
   uint32_t index;  // Index of the time interval that was changed.
   uint32_t count;  // New value of count field for the interval with this index.
   uint32_t size;  // New value of size field for the interval with this index.
 };
 
 
 }  // namespace v8
 
 
+#undef V8EXPORT
+
+
 #endif  // V8_V8_PROFILER_H_