Backed out changeset ad9a4a3a5409, bug 506812. CLOSED TREE

xpcom/io/nsLocalFileOSX.h

@@ -43,6 +43,8 @@
 #include "nsString.h"
 #include "nsIHashable.h"
 
+class nsDirEnumerator;
+
 // Mac OS X 10.4 does not have stat64/lstat64
 #if defined(HAVE_STAT64) && defined(HAVE_LSTAT64) && (MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_4)
 #define STAT stat64
@@ -69,6 +71,8 @@
 class NS_COM nsLocalFile : public nsILocalFileMac,
                            public nsIHashable
 {
+  friend class nsDirEnumerator;
+    
 public:
   NS_DEFINE_STATIC_CID_ACCESSOR(NS_LOCAL_FILE_CID)
 

xpcom/io/nsLocalFileOSX.mm

@@ -67,7 +67,6 @@
 #include <sys/statvfs.h>
 #include <stdlib.h>
 #include <utime.h>
-#include <dirent.h>
 
 #define CHECK_INIT()                            \
     PR_BEGIN_MACRO                              \
@@ -79,7 +78,17 @@ static nsresult MacErrorMapper(OSErr inErr);
 static void CopyUTF8toUTF16NFC(const nsACString& aSrc, nsAString& aResult);
 static nsresult CFStringReftoUTF8(CFStringRef aInStrRef, nsACString& aOutStr);
 
-const char kPathSepChar = '/';
+#pragma mark -
+#pragma mark [FSRef operator==]
+
+bool operator==(const FSRef& lhs, const FSRef& rhs)
+{
+  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
+
+  return (::FSCompareFSRefs(&lhs, &rhs) == noErr);
+
+  NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
+}
 
 #pragma mark -
 #pragma mark [StFollowLinksState]
@@ -113,136 +122,167 @@ class StFollowLinksState
 #pragma mark -
 #pragma mark [nsDirEnumerator]
 
-class NS_COM
-nsDirEnumerator : public nsISimpleEnumerator,
-                  public nsIDirectoryEnumerator
+class nsDirEnumerator : public nsISimpleEnumerator,
+                        public nsIDirectoryEnumerator
 {
-public:
-  nsDirEnumerator();
+    public:
 
-  // nsISupports interface
-  NS_DECL_ISUPPORTS
+        NS_DECL_ISUPPORTS
 
-  // nsISimpleEnumerator interface
-  NS_DECL_NSISIMPLEENUMERATOR
+        nsDirEnumerator() :
+          mIterator(nsnull),
+          mFSRefsArray(nsnull),
+          mArrayCnt(0), mArrayIndex(0)
+        {
+        }
 
-  // nsIDirectoryEnumerator interface
-  NS_DECL_NSIDIRECTORYENUMERATOR
+        nsresult Init(nsILocalFileMac* parent) 
+        {
+          NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
 
-  NS_IMETHOD Init(nsLocalFile *parent);
+          NS_ENSURE_ARG(parent);
           
-private:
-  ~nsDirEnumerator();
+          OSErr err;
+          nsresult rv;
+          FSRef parentRef;
           
-protected:
-  NS_IMETHOD GetNextEntry();
+          rv = parent->GetFSRef(&parentRef);
+          if (NS_FAILED(rv))
+            return rv;
           
-  DIR           *mDir;
-  struct dirent *mEntry;
-  nsCString      mParentPath;
+          mFSRefsArray = (FSRef *)nsMemory::Alloc(sizeof(FSRef)
+                                                  * kRequestCountPerIteration);
+          if (!mFSRefsArray)
+            return NS_ERROR_OUT_OF_MEMORY;
+          
+          err = ::FSOpenIterator(&parentRef, kFSIterateFlat, &mIterator);
+          if (err != noErr)
+            return MacErrorMapper(err);
+                              
+          return NS_OK;
+
+          NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+        }
+
+        NS_IMETHOD HasMoreElements(PRBool *result) 
+        {
+          NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+          if (!mIterator || !mFSRefsArray) {
+            *result = PR_FALSE;
+            return NS_OK;
+          }
+
+          if (mNext == nsnull) {
+            if (mArrayIndex >= mArrayCnt) {
+              ItemCount actualCnt;
+              OSErr err = ::FSGetCatalogInfoBulk(mIterator,
+                                           kRequestCountPerIteration,
+                                           &actualCnt,
+                                           nsnull,
+                                           kFSCatInfoNone,
+                                           nsnull,
+                                           mFSRefsArray,
+                                           nsnull,
+                                           nsnull);
+            
+              if (err == noErr || err == errFSNoMoreItems) {
+                mArrayCnt = actualCnt;
+                mArrayIndex = 0;
+              }
+            }
+
+            if (mArrayIndex < mArrayCnt) {
+              nsRefPtr<nsLocalFile> newFile = new nsLocalFile;
+              if (!newFile)
+                return NS_ERROR_OUT_OF_MEMORY;
+              FSRef fsRef = mFSRefsArray[mArrayIndex];
+              if (NS_FAILED(newFile->InitWithFSRef(&fsRef)))
+                return NS_ERROR_FAILURE;
+              mArrayIndex++;
+              mNext = newFile;
+            } 
+          }
+
+          *result = mNext != nsnull;
+          if (!*result)
+            Close();
+
+          return NS_OK;
+
+          NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+        }
+
+        NS_IMETHOD GetNext(nsISupports **result) 
+        {
+            NS_ENSURE_ARG_POINTER(result);
+            *result = nsnull;
+
+            nsresult rv;
+            PRBool hasMore;
+            rv = HasMoreElements(&hasMore);
+            if (NS_FAILED(rv)) return rv;
+
+            *result = mNext; // might return nsnull
+            NS_IF_ADDREF(*result);
+
+            mNext = nsnull;
+            return NS_OK;
+        }
+
+        NS_IMETHOD GetNextFile(nsIFile **result)
+        {
+            *result = nsnull;
+            PRBool hasMore = PR_FALSE;
+            nsresult rv = HasMoreElements(&hasMore);
+            if (NS_FAILED(rv) || !hasMore)
+                return rv;
+            *result = mNext;
+            NS_IF_ADDREF(*result);
+            mNext = nsnull;
+            return NS_OK;
+        }
+
+        NS_IMETHOD Close()
+        {
+          NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+          if (mIterator) {
+            ::FSCloseIterator(mIterator);
+            mIterator = nsnull;
+          }
+          if (mFSRefsArray) {
+            nsMemory::Free(mFSRefsArray);
+            mFSRefsArray = nsnull;
+          }
+          return NS_OK;
+
+          NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+        }
+
+    private:
+        ~nsDirEnumerator() 
+        {
+          Close();
+        }
+
+    protected:
+        // According to Apple doc, request the number of objects
+        // per call that will fit in 4 VM pages.
+        enum {
+          kRequestCountPerIteration = ((4096 * 4) / sizeof(FSRef))
+        };
+        
+        nsCOMPtr<nsILocalFileMac>   mNext;
+        
+        FSIterator              mIterator;
+        FSRef                   *mFSRefsArray;
+        PRInt32                 mArrayCnt, mArrayIndex;
 };
 
-nsDirEnumerator::nsDirEnumerator() :
-mDir(nsnull), 
-mEntry(nsnull)
-{
-}
-
-nsDirEnumerator::~nsDirEnumerator()
-{
-  Close();
-}
-
 NS_IMPL_ISUPPORTS2(nsDirEnumerator, nsISimpleEnumerator, nsIDirectoryEnumerator)
 
-NS_IMETHODIMP
-nsDirEnumerator::Init(nsLocalFile *parent)
-{
-  nsCAutoString dirPath;
-  if (NS_FAILED(parent->GetNativePath(dirPath)) ||
-      dirPath.IsEmpty()) {
-    return NS_ERROR_FILE_INVALID_PATH;
-  }
-
-  if (NS_FAILED(parent->GetNativePath(mParentPath)))
-    return NS_ERROR_FAILURE;
-
-  mDir = opendir(dirPath.get());
-  if (!mDir)
-    return NSRESULT_FOR_ERRNO();
-  return GetNextEntry();
-}
-
-NS_IMETHODIMP
-nsDirEnumerator::HasMoreElements(PRBool *result)
-{
-  *result = mDir && mEntry;
-  if (!*result)
-    Close();
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-nsDirEnumerator::GetNext(nsISupports **_retval)
-{
-  nsCOMPtr<nsIFile> file;
-  nsresult rv = GetNextFile(getter_AddRefs(file));
-  if (NS_FAILED(rv))
-    return rv;
-  NS_IF_ADDREF(*_retval = file);
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-nsDirEnumerator::GetNextEntry()
-{
-  do {
-    errno = 0;
-    mEntry = readdir(mDir);
-
-    // end of dir or error
-    if (!mEntry)
-      return NSRESULT_FOR_ERRNO();
-
-    // keep going past "." and ".."
-  } while (mEntry->d_name[0] == '.'     &&
-           (mEntry->d_name[1] == '\0'    ||   // .\0
-            (mEntry->d_name[1] == '.'     &&
-             mEntry->d_name[2] == '\0')));      // ..\0
-  return NS_OK;
-}
-
-NS_IMETHODIMP
-nsDirEnumerator::GetNextFile(nsIFile **_retval)
-{
-  nsresult rv;
-  if (!mDir || !mEntry) {
-    *_retval = nsnull;
-    return NS_OK;
-  }
-
-  nsCOMPtr<nsILocalFile> file = new nsLocalFile();
-  if (!file)
-    return NS_ERROR_OUT_OF_MEMORY;
-
-  if (NS_FAILED(rv = file->InitWithNativePath(mParentPath)) ||
-      NS_FAILED(rv = file->AppendNative(nsDependentCString(mEntry->d_name))))
-    return rv;
-
-  *_retval = file;
-  NS_ADDREF(*_retval);
-  return GetNextEntry();
-}
-
-NS_IMETHODIMP 
-nsDirEnumerator::Close()
-{
-  if (mDir) {
-    closedir(mDir);
-    mDir = nsnull;
-  }
-  return NS_OK;
-}
+const char kPathSepChar = '/';
 
 #pragma mark -
 #pragma mark [CTORs/DTOR]