[Isolates] Merge from bleeding_edge to isolates, revisions 6100-6300.

src/platform.h

Index: src/platform.h
===================================================================
--- src/platform.h	(revision 6941)
+++ src/platform.h	(working copy)
@@ -387,6 +387,7 @@
 
   // Create new thread (with a value for storing in the TLS isolate field).
   explicit Thread(Isolate* isolate);
+  Thread(Isolate* isolate, const char* name);
   virtual ~Thread();
 
   // Start new thread by calling the Run() method in the new thread.
@@ -395,6 +396,10 @@
   // Wait until thread terminates.
   void Join();
 
+  inline const char* name() const {
+    return name_;
+  }
+
   // Abstract method for run handler.
   virtual void Run() = 0;
 
@@ -418,10 +423,17 @@
 
   Isolate* isolate() const { return isolate_; }
 
+  // The thread name length is limited to 16 based on Linux's implementation of
+  // prctl().
+  static const int kMaxThreadNameLength = 16;
  private:
+  void set_name(const char *name);
+
   class PlatformData;
   PlatformData* data_;
   Isolate* isolate_;
+  char name_[kMaxThreadNameLength];
+
   DISALLOW_COPY_AND_ASSIGN(Thread);
 };