Changeset 4087 in webkit for trunk/JavaScriptCore/kjs/internal.cpp

Timestamp:

Apr 13, 2003, 12:31:44 AM (22 years ago)

Author:

mjs

Message:

Reviewed by Don.

• JavaScriptCore part of fix for 3158769 - JavaScript triggers not as async as they used to be

Added a way to get the current interpreter lock count, so Sherlock
can unlock the interpreter inside JS method implementations that
spend a long time waiting for I/O, allowing more efficient
multi-threaded operation.

• kjs/internal.cpp: (lockInterpreter): (unlockInterpreter): (InterpreterImp::lock): (InterpreterImp::lockCount):
• kjs/internal.h:
• kjs/interpreter.cpp: (Interpreter::lockCount):
• kjs/interpreter.h:

File:

• trunk/JavaScriptCore/kjs/internal.cpp (modified) (3 diffs)

trunk/JavaScriptCore/kjs/internal.cpp

@@ -73 +73 @@
 static pthread_once_t interpreterLockOnce = PTHREAD_ONCE_INIT;
 static pthread_mutex_t interpreterLock;
+static int interpreterLockCount = 0;
 
 static void initializeInterpreterLock()
@@ -88 +89 @@
   pthread_once(&interpreterLockOnce, initializeInterpreterLock);
   pthread_mutex_lock(&interpreterLock);
+  interpreterLockCount++;
 }
 
 static inline void unlockInterpreter()
 {
+  interpreterLockCount--;
   pthread_mutex_unlock(&interpreterLock);
 }
@@ -531 +534 @@
 {
   lockInterpreter();
+}
+
+int InterpreterImp::lockCount()
+{
+  return interpreterLockCount;
 }