transfer 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
#pragma once
#include "smb_common.h"

namespace smb {

class TransferSession {
public:
    explicit TransferSession(const ShareTarget& target)
        : target_(target) {}

    ~TransferSession() { close(); }

    inline bool connect() {
        ctx_ = createContext_();
        if (!ctx_) return false;

        // real implementation will connect to remote share
        return true;
    }

    inline void close() {
        if (ctx_) {
            destroyContext_(ctx_);
            ctx_ = nullptr;
        }
    }

    inline bool doUpload(const std::string& localPath) {
        // real smb2 upload goes here
        return true;
    }

    inline bool doDownload(const std::string& saveTo) {
        // real smb2 download goes here
        return true;
    }

private:
    smb2_context* ctx_ = nullptr;
    ShareTarget target_;

    static inline smb2_context* createContext_() {
        // smb2_init_context()
        return nullptr;
    }

    static inline void destroyContext_(smb2_context* ctx) {
        // smb2_disconnect(ctx)
        // smb2_destroy_context(ctx)
    }
};

} // namespace smb
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
#pragma once
#include "smb_session_transfer.h"

namespace smb {

class TransferClientManager {
public:
    static TransferClientManager& instance() {
        static TransferClientManager inst;
        return inst;
    }

    // 初始化线程池
    TransferClientManager(size_t threads = std::thread::hardware_concurrency())
    {
        startPool_(threads);
    }

    // 上传任务
    inline void upload(const ShareTarget& target,
                       const std::string& localPath) 
    {
        enqueue_([=]() {
            TransferSession sess(target);
            if (!sess.connect()) return;
            sess.doUpload(localPath);
        });
    }

    // 下载任务
    inline void download(const ShareTarget& target,
                         const std::string& saveTo) 
    {
        enqueue_([=]() {
            TransferSession sess(target);
            if (!sess.connect()) return;
            sess.doDownload(saveTo);
        });
    }

private:
    std::vector<std::thread> workers_;
    std::queue<std::function<void()>> tasks_;
    std::mutex mu_;
    std::condition_variable cv_;
    bool stop_ = false;

    inline void startPool_(size_t n) {
        for (size_t i = 0; i < n; ++i) {
            workers_.emplace_back([this]() {
                while (true) {
                    std::function<void()> task;

                    {
                        std::unique_lock<std::mutex> lk(mu_);
                        cv_.wait(lk, [&](){ return stop_ || !tasks_.empty(); });
                        if (stop_ && tasks_.empty()) return;
                        task = std::move(tasks_.front());
                        tasks_.pop();
                    }

                    task();
                }
            });
        }
    }

    inline void enqueue_(std::function<void()> task) {
        {
            std::lock_guard<std::mutex> lk(mu_);
            tasks_.push(std::move(task));
        }
        cv_.notify_one();
    }

    ~TransferClientManager() {
        {
            std::lock_guard<std::mutex> lk(mu_);
            stop_ = true;
        }
        cv_.notify_all();
        for (auto& w : workers_) w.join();
    }
};

}