有c++的吗-Go服务器开发

当然可以，以下是使用C++和Zookeeper实现分布式锁的示例代码。这个示例使用了Zookeeper的C API。

1. 安装 Zookeeper C API

确保你的环境中安装了Zookeeper的C客户端库。如果还未安装，可以从Apache Zookeeper官网下载并按照说明进行安装。

2. C++ 实现分布式锁

下面是一个简单的C++实现示例：

#include <zookeeper.h>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <unistd.h>

class DistributedLock {
public:
    DistributedLock(const std::string &host) {
        zk = zookeeper_init(host.c_str(), nullptr, 30000, 0, nullptr, 0);
        if (zk == nullptr) {
            throw std::runtime_error("Unable to connect to Zookeeper");
        }
        // Create the locks root node if it doesn't exist
        if (zoo_exists(zk, "/locks", 0) == ZNONODE) {
            zoo_create(zk, "/locks", nullptr, -1, &ZOO_OPEN_ACL_UNSAFE,
                       ZOO_PERSISTENT, nullptr, 0);
        }
    }

    ~DistributedLock() {
        if (zk != nullptr) {
            zookeeper_close(zk);
        }
    }

    void acquireLock() {
        char lockPath[256];
        snprintf(lockPath, sizeof(lockPath), "/locks/lock-");

        // Create an ephemeral sequential node for the lock
        char buffer[256];
        int buffer_len = sizeof(buffer);
        std::string myNode = lockPath;
        
        int ret = zoo_create(zk, myNode.c_str(), nullptr, -1,
                             &ZOO_OPEN_ACL_UNSAFE,
                             ZOO_EPHEMERAL_SEQUENTIAL,
                             buffer,
                             buffer_len);

        if (ret != ZOK) {
            throw std::runtime_error("Failed to create lock node");
        }

        myNode += buffer;

        while (true) {
            // List all nodes in /locks
            String_vector children;
            zoo_get_children(zk, "/locks", 0, &children);
            
            std::vector<std::string> nodes(children.data, children.data + children.count);
            std::sort(nodes.begin(), nodes.end());

            // Check if this is the lowest node
            if (myNode.substr(myNode.rfind('/') + 1) == nodes.front()) {
                std::cout << "Acquired lock: " << myNode << std::endl;
                return; // Lock acquired successfully
            } else {
                // Wait for the previous node to be deleted
                int index = std::distance(nodes.begin(),
                    std::find(nodes.begin(), nodes.end(),
                               myNode.substr(myNode.rfind('/') + 1)));

                if (index > 0 && index <= nodes.size()) {
                    const std::string &prevNode = nodes[index - 1];
                    char prevNodePath[256];
                    snprintf(prevNodePath,sizeof(prevNodePath),"/locks/%s", prevNode.c_str());
                    
                    struct Stat stat;
                    zoo_wexists(zk, prevNodePath, [](int type,int state,const char *path){
                        if(type == ZEVENT_DELETED)
                            std::cout << "Previous lock released" <<std::endl;
                     },nullptr);

                    usleep(100000); // Sleep before checking again.
                }
            }
            
            delete_string_vector(&children); // Free memory allocated by get_children.
         }
     }

     void releaseLock(const std::string &lockName) {
         zoo_delete(zk, lockName.c_str(), -1);
         std::cout << "Released lock: " << lockName << std::endl;
     }

private:
     zhandle_t *zk;
};

int main() {
    try {
         DistributedLock dl("/localhost:2181"); // Replace with your ZooKeeper connection string

         dl.acquireLock();
         sleep(5); // Simulate work holding the lock

         dl.releaseLock("/locks/lock-xxxxx"); // Specify actual lock name created previously.

     } catch (const std::exception &e) {
         std::cerr << "Error: " << e.what() << std::endl;
     }

     return 0;
}