Expose zip archive reading support (issue #30).

Move ClientReadHandler to CefByteReadHandler in cef_wrapper.h.
Add support for the time_t data type to cef_parser.py.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@125 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef_dll/wrapper/cef_byte_read_handler.cc

@@ -0,0 +1,67 @@
+// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+
+#include "include/cef_wrapper.h"
+#include "base/logging.h"
+
+CefByteReadHandler::CefByteReadHandler(const unsigned char* bytes, size_t size,
+                                       CefRefPtr<CefBase> source)
+  : bytes_(bytes), size_(size), offset_(0), source_(source)
+{
+}
+
+size_t CefByteReadHandler::Read(void* ptr, size_t size, size_t n)
+{
+  Lock();
+  size_t s = (size_ - offset_) / size;
+  size_t ret = min(n, s);
+  memcpy(ptr, bytes_ + offset_, ret * size);
+  offset_ += ret * size;
+  Unlock();
+  return ret;
+}
+
+int CefByteReadHandler::Seek(long offset, int whence)
+{
+  int rv = -1L;
+  Lock();
+  switch(whence) {
+  case SEEK_CUR:
+    if(offset_ + offset > size_)
+      break;
+    offset_ += offset;
+    rv = offset_;
+    break;
+  case SEEK_END:
+    if(offset > static_cast<long>(size_))
+      break;
+    offset_ = size_ - offset;
+    rv = offset_;
+  case SEEK_SET:
+    if(offset > static_cast<long>(size_))
+      break;
+    offset_ = offset;
+    rv = offset_;
+    break;
+  }
+  Unlock();
+
+  return rv;
+}
+
+long CefByteReadHandler::Tell()
+{
+  Lock();
+  long rv = offset_;
+  Unlock();
+  return rv;
+}
+
+int CefByteReadHandler::Eof()
+{
+  Lock();
+  int rv = (offset_ >= size_);
+  Unlock();
+  return rv;
+}