You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.6 KiB
61 lines
1.6 KiB
/*
|
|
* Copyright (C) 2019 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 specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <dirent.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <iterator>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
namespace android {
|
|
namespace base {
|
|
|
|
class AllPids {
|
|
class PidIterator {
|
|
public:
|
|
PidIterator(DIR* dir) : dir_(dir, closedir) { Increment(); }
|
|
PidIterator& operator++() {
|
|
Increment();
|
|
return *this;
|
|
}
|
|
bool operator==(const PidIterator& other) const { return pid_ == other.pid_; }
|
|
bool operator!=(const PidIterator& other) const { return !(*this == other); }
|
|
long operator*() const { return pid_; }
|
|
// iterator traits
|
|
using difference_type = pid_t;
|
|
using value_type = pid_t;
|
|
using pointer = const pid_t*;
|
|
using reference = const pid_t&;
|
|
using iterator_category = std::input_iterator_tag;
|
|
|
|
private:
|
|
void Increment();
|
|
|
|
pid_t pid_ = -1;
|
|
std::unique_ptr<DIR, decltype(&closedir)> dir_;
|
|
};
|
|
|
|
public:
|
|
PidIterator begin() { return opendir("/proc"); }
|
|
PidIterator end() { return nullptr; }
|
|
};
|
|
|
|
} // namespace base
|
|
} // namespace android
|