| // Copyright 2013 The Flutter 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 "flutter/fml/native_library.h" |
| |
| #include <dlfcn.h> |
| #include <fcntl.h> |
| |
| namespace fml { |
| |
| NativeLibrary::NativeLibrary(const char* path) { |
| ::dlerror(); |
| handle_ = ::dlopen(path, RTLD_NOW); |
| if (handle_ == nullptr) { |
| FML_DLOG(ERROR) << "Could not open library '" << path << "' due to error '" |
| << ::dlerror() << "'."; |
| } |
| } |
| |
| NativeLibrary::NativeLibrary(Handle handle, bool close_handle) |
| : handle_(handle), close_handle_(close_handle) {} |
| |
| NativeLibrary::~NativeLibrary() { |
| if (handle_ == nullptr) { |
| return; |
| } |
| |
| if (close_handle_) { |
| ::dlerror(); |
| if (::dlclose(handle_) != 0) { |
| handle_ = nullptr; |
| FML_LOG(ERROR) << "Could not close library due to error '" << ::dlerror() |
| << "'."; |
| } |
| } |
| } |
| |
| NativeLibrary::Handle NativeLibrary::GetHandle() const { |
| return handle_; |
| } |
| |
| fml::RefPtr<NativeLibrary> NativeLibrary::Create(const char* path) { |
| auto library = fml::AdoptRef(new NativeLibrary(path)); |
| return library->GetHandle() != nullptr ? library : nullptr; |
| } |
| |
| fml::RefPtr<NativeLibrary> NativeLibrary::CreateWithHandle( |
| Handle handle, |
| bool close_handle_when_done) { |
| auto library = |
| fml::AdoptRef(new NativeLibrary(handle, close_handle_when_done)); |
| return library->GetHandle() != nullptr ? library : nullptr; |
| } |
| |
| fml::RefPtr<NativeLibrary> NativeLibrary::CreateForCurrentProcess() { |
| return fml::AdoptRef(new NativeLibrary(RTLD_DEFAULT, false)); |
| } |
| |
| NativeLibrary::SymbolHandle NativeLibrary::Resolve(const char* symbol) const { |
| return ::dlsym(handle_, symbol); |
| } |
| |
| } // namespace fml |