Process.h

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// Copyright 2024 libsese
//
// 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 "sese/Util.h"
#include "sese/util/Result.h"
 
namespace sese::system {
 
class Process {
public:
    using Ptr = std::unique_ptr<Process>;
 
    static Process::Ptr create(const char *command) noexcept;
 
 
    static Result<Process::Ptr> createEx(const char *command) noexcept;
 
    [[nodiscard]] static pid_t getCurrentProcessId() noexcept;
 
    [[nodiscard]] int wait() const noexcept;
 
    [[nodiscard]] bool kill() const noexcept;
 
    [[nodiscard]] pid_t getProcessId() const noexcept;
 
private:
    Process() = default;
 
#ifdef _WIN32
public:
    virtual ~Process() noexcept;
 
private:
    void *startup_info = nullptr;
    void *process_info = nullptr;
#else
public:
    virtual ~Process() noexcept = default;
 
private:
    // Unix-like 执行新进程实现
    static void exec(char *p_command) noexcept;
    // 计算字符串中参数的个数
    static size_t count(const char *p_command) noexcept;
    // 将下一个空格设置为 '\0'，并返回空格下一个字符的指针
    static char *spilt(char *p_command) noexcept;
 
    pid_t id = -1;
#endif
};
} // namespace sese::system