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1133591eeb
The GetMapping calls removed in this patch had the same code and had to be repeated across different test harnesses as well as in dart_snapshot.cc. Just make this a factory method so the code is less verbose.
124 lines
3.2 KiB
C++
124 lines
3.2 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/fml/mapping.h"
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#include <sstream>
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namespace fml {
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// FileMapping
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uint8_t* FileMapping::GetMutableMapping() {
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return mutable_mapping_;
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}
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std::unique_ptr<FileMapping> FileMapping::CreateReadOnly(
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const std::string& path) {
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return CreateReadOnly(OpenFile(path.c_str(), false, FilePermission::kRead),
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"");
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}
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std::unique_ptr<FileMapping> FileMapping::CreateReadOnly(
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const fml::UniqueFD& base_fd,
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const std::string& sub_path) {
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if (sub_path.size() != 0) {
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return CreateReadOnly(
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OpenFile(base_fd, sub_path.c_str(), false, FilePermission::kRead), "");
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}
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auto mapping = std::make_unique<FileMapping>(
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base_fd, std::initializer_list<Protection>{Protection::kRead});
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if (mapping->GetSize() == 0 || mapping->GetMapping() == nullptr) {
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return nullptr;
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}
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return mapping;
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}
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std::unique_ptr<FileMapping> FileMapping::CreateReadExecute(
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const std::string& path) {
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return CreateReadExecute(
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OpenFile(path.c_str(), false, FilePermission::kRead));
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}
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std::unique_ptr<FileMapping> FileMapping::CreateReadExecute(
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const fml::UniqueFD& base_fd,
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const std::string& sub_path) {
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if (sub_path.size() != 0) {
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return CreateReadExecute(
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OpenFile(base_fd, sub_path.c_str(), false, FilePermission::kRead), "");
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}
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auto mapping = std::make_unique<FileMapping>(
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base_fd, std::initializer_list<Protection>{Protection::kRead,
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Protection::kExecute});
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if (mapping->GetSize() == 0 || mapping->GetMapping() == nullptr) {
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return nullptr;
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}
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return mapping;
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}
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// Data Mapping
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DataMapping::DataMapping(std::vector<uint8_t> data) : data_(std::move(data)) {}
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DataMapping::~DataMapping() = default;
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size_t DataMapping::GetSize() const {
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return data_.size();
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}
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const uint8_t* DataMapping::GetMapping() const {
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return data_.data();
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}
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// NonOwnedMapping
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size_t NonOwnedMapping::GetSize() const {
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return size_;
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}
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const uint8_t* NonOwnedMapping::GetMapping() const {
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return data_;
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}
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// Symbol Mapping
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SymbolMapping::SymbolMapping(fml::RefPtr<fml::NativeLibrary> native_library,
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const char* symbol_name)
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: native_library_(std::move(native_library)) {
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if (native_library_ && symbol_name != nullptr) {
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mapping_ = native_library_->ResolveSymbol(symbol_name);
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if (mapping_ == nullptr) {
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// Apparently, dart_bootstrap seems to account for the Mac behavior of
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// requiring the underscore prefixed symbol name on non-Mac platforms as
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// well. As a fallback, check the underscore prefixed variant of the
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// symbol name and allow callers to not have handle this on a per platform
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// toolchain quirk basis.
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std::stringstream underscore_symbol_name;
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underscore_symbol_name << "_" << symbol_name;
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mapping_ =
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native_library_->ResolveSymbol(underscore_symbol_name.str().c_str());
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}
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}
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}
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SymbolMapping::~SymbolMapping() = default;
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size_t SymbolMapping::GetSize() const {
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return 0;
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}
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const uint8_t* SymbolMapping::GetMapping() const {
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return mapping_;
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}
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} // namespace fml
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