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// Copyright (c) 2012 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/shared_impl/scoped_pp_var.h"
#include "ppapi/c/dev/ppb_memory_dev.h"
#include "ppapi/shared_impl/ppapi_globals.h"
#include "ppapi/shared_impl/var_tracker.h"
#include "ppapi/thunk/thunk.h"
namespace ppapi {
namespace {
void CallAddRef(const PP_Var& v) {
PpapiGlobals::Get()->GetVarTracker()->AddRefVar(v);
}
void CallRelease(const PP_Var& v) {
PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(v);
}
} // namespace
ScopedPPVar::ScopedPPVar() : var_(PP_MakeUndefined()) {}
ScopedPPVar::ScopedPPVar(const PP_Var& v) : var_(v) { CallAddRef(var_); }
ScopedPPVar::ScopedPPVar(const PassRef&, const PP_Var& v) : var_(v) {}
ScopedPPVar::ScopedPPVar(const ScopedPPVar& other) : var_(other.var_) {
CallAddRef(var_);
}
ScopedPPVar::~ScopedPPVar() { CallRelease(var_); }
ScopedPPVar& ScopedPPVar::operator=(const PP_Var& v) {
CallAddRef(v);
CallRelease(var_);
var_ = v;
return *this;
}
PP_Var ScopedPPVar::Release() {
PP_Var result = var_;
var_ = PP_MakeUndefined();
return result;
}
ScopedPPVarArray::ScopedPPVarArray(const PassPPBMemoryAllocatedArray&,
PP_Var* array,
size_t size)
: array_(array),
size_(size) {}
ScopedPPVarArray::ScopedPPVarArray(size_t size)
: size_(size) {
if (size > 0) {
array_ = static_cast<PP_Var*>(
thunk::GetPPB_Memory_Dev_0_1_Thunk()->MemAlloc(
static_cast<uint32_t>(sizeof(PP_Var) * size)));
}
for (size_t i = 0; i < size_; ++i)
array_[i] = PP_MakeUndefined();
}
ScopedPPVarArray::~ScopedPPVarArray() {
for (size_t i = 0; i < size_; ++i)
CallRelease(array_[i]);
if (size_ > 0)
thunk::GetPPB_Memory_Dev_0_1_Thunk()->MemFree(array_);
}
PP_Var* ScopedPPVarArray::Release(const PassPPBMemoryAllocatedArray&) {
PP_Var* result = array_;
array_ = NULL;
size_ = 0;
return result;
}
void ScopedPPVarArray::Set(size_t index, const ScopedPPVar& var) {
DCHECK(index < size_);
CallAddRef(var.get());
CallRelease(array_[index]);
array_[index] = var.get();
}
} // namespace ppapi
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