#ifndef _bus_nng_wrap_h_
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#define _bus_nng_wrap_h_
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#include <string>
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namespace nng_wrap {
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void copy_memory(void** dest, int *dest_len, const void* src, const int src_len);
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void get_last_error(int* ec, void** emsg, int* emsg_len);
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void free_nng(void* data, const int data_len);
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int simple_request(const std::string& url,
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const void* in, const int in_len,
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void** out, int *out_len, const int to_ms);
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int request2(const std::string &ipc, const void* r, const int r_len,
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void** reply, int* reply_len, const int to_ms);
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int start_reply(const std::string& url, const int port);
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int read_request(void** src, std::string* msg, const int to_ms);
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int send_reply(const void* src, const void* msg, const int msg_len);
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int publish(const std::string& topic, const void* data, const int data_len);
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int subscribe_center(const std::string& url);
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int subscribe_topic(const std::string& topic);
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int unsubscribe_topic(const std::string& topic);
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int subscribe_read(std::string* topic, std::string* msg, const int to_ms);
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int respond_survey(const std::string& url, std::string&& fixed_msg);
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}
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#endif
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