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// Copyright (c) 2011 The Chromium 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 "ppapi/cpp/dev/var_array_buffer_dev.h"
#include "ppapi/c/dev/ppb_var_array_buffer_dev.h"
#include "ppapi/cpp/logging.h"
#include "ppapi/cpp/module_impl.h"
namespace pp {
namespace {
template <> const char* interface_name<PPB_VarArrayBuffer_Dev>() {
return PPB_VAR_ARRAY_BUFFER_DEV_INTERFACE;
}
} // namespace
VarArrayBuffer_Dev::VarArrayBuffer_Dev(const Var& var)
: Var(var), buffer_(NULL) {
if (var.is_array_buffer()) {
buffer_ = Map();
} else {
PP_NOTREACHED();
var_ = PP_MakeNull();
}
}
VarArrayBuffer_Dev::VarArrayBuffer_Dev(uint32_t size_in_bytes)
: buffer_(NULL) {
if (has_interface<PPB_VarArrayBuffer_Dev>()) {
var_ = get_interface<PPB_VarArrayBuffer_Dev>()->Create(size_in_bytes);
buffer_ = Map();
} else {
PP_NOTREACHED();
var_ = PP_MakeNull();
}
}
uint32_t VarArrayBuffer_Dev::ByteLength() const {
if (has_interface<PPB_VarArrayBuffer_Dev>()) {
return get_interface<PPB_VarArrayBuffer_Dev>()->ByteLength(var_);
}
PP_NOTREACHED();
return 0;
}
const void* VarArrayBuffer_Dev::Map() const {
return const_cast<VarArrayBuffer_Dev*>(this)->Map();
}
void* VarArrayBuffer_Dev::Map() {
// TODO(dmichael): This is not thread-safe.
if (buffer_)
return buffer_;
if (has_interface<PPB_VarArrayBuffer_Dev>()) {
buffer_ = get_interface<PPB_VarArrayBuffer_Dev>()->Map(var_);
return buffer_;
}
PP_NOTREACHED();
return 0;
}
} // namespace pp
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