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author | Daichi Hirono <hirono@google.com> | 2017-03-06 15:21:00 +0900 |
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committer | Daichi Hirono <hirono@google.com> | 2017-03-15 15:58:06 +0900 |
commit | 2a14b71f141fcb7924693cab41d62a8c1bb0f324 (patch) | |
tree | 09972c9f7572d5392fa719f23bf66537f846d731 /libappfuse/include | |
parent | e9af468cde8936ee4640092e0027ab76cecfda0a (diff) | |
download | system_core-2a14b71f141fcb7924693cab41d62a8c1bb0f324.tar.gz system_core-2a14b71f141fcb7924693cab41d62a8c1bb0f324.tar.bz2 system_core-2a14b71f141fcb7924693cab41d62a8c1bb0f324.zip |
Add new EpollController class.
The class is a thin wrapper for C epoll functions.
Bug: 34903085
Test: Build EpollController.cc and libappfuse_test after applying
future changes locally.
Change-Id: Iedce7f35e4397f80cde1054d53261ad94f9e58a8
Diffstat (limited to 'libappfuse/include')
-rw-r--r-- | libappfuse/include/libappfuse/EpollController.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/libappfuse/include/libappfuse/EpollController.h b/libappfuse/include/libappfuse/EpollController.h new file mode 100644 index 000000000..3863abae7 --- /dev/null +++ b/libappfuse/include/libappfuse/EpollController.h @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2017 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specic language governing permissions and + * limitations under the License. + */ + +#ifndef ANDROID_LIBAPPFUSE_EPOLLCONTROLLER_H_ +#define ANDROID_LIBAPPFUSE_EPOLLCONTROLLER_H_ + +#include <sys/epoll.h> + +#include <vector> + +#include <android-base/macros.h> +#include <android-base/unique_fd.h> + +namespace android { +namespace fuse { + +class EpollController { + public: + explicit EpollController(base::unique_fd&& poll_fd); + bool Wait(size_t event_count); + bool AddFd(int fd, int events, void* data); + bool UpdateFd(int fd, int events, void* data); + bool RemoveFd(int fd); + + const std::vector<epoll_event>& events() const; + + private: + bool InvokeControl(int op, int fd, int events, void* data) const; + base::unique_fd poll_fd_; + std::vector<epoll_event> events_; + + DISALLOW_COPY_AND_ASSIGN(EpollController); +}; +} +} + +#endif // ANDROID_LIBAPPFUSE_EPOLLCONTROLLER_H_ |