mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-23 23:02:23 +00:00
95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
#include "RabbitMQ.hpp"
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#include <amqp.h>
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#include <amqp_tcp_socket.h>
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#include <stdexcept>
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#include <cstring>
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namespace ZeroTier
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{
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RabbitMQ::RabbitMQ(MQConfig *cfg, const char *queueName)
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: _mqc(cfg)
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, _qName(queueName)
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, _socket(NULL)
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, _status(0)
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{
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}
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RabbitMQ::~RabbitMQ()
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{
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amqp_channel_close(_conn, _channel, AMQP_REPLY_SUCCESS);
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amqp_connection_close(_conn, AMQP_REPLY_SUCCESS);
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amqp_destroy_connection(_conn);
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}
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void RabbitMQ::init()
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{
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struct timeval tval;
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memset(&tval, 0, sizeof(struct timeval));
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tval.tv_sec = 5;
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fprintf(stderr, "Initializing RabbitMQ %s\n", _qName);
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_conn = amqp_new_connection();
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_socket = amqp_tcp_socket_new(_conn);
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if (!_socket) {
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throw std::runtime_error("Can't create socket for RabbitMQ");
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}
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_status = amqp_socket_open_noblock(_socket, _mqc->host, _mqc->port, &tval);
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if (_status) {
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throw std::runtime_error("Can't connect to RabbitMQ");
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}
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amqp_rpc_reply_t r = amqp_login(_conn, "/", 0, 131072, 0, AMQP_SASL_METHOD_PLAIN,
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_mqc->username, _mqc->password);
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if (r.reply_type != AMQP_RESPONSE_NORMAL) {
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throw std::runtime_error("RabbitMQ Login Error");
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}
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static int chan = 0;
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{
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Mutex::Lock l(_chan_m);
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_channel = ++chan;
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}
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amqp_channel_open(_conn, _channel);
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r = amqp_get_rpc_reply(_conn);
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if(r.reply_type != AMQP_RESPONSE_NORMAL) {
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throw std::runtime_error("Error opening communication channel");
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}
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_q = amqp_queue_declare(_conn, _channel, amqp_cstring_bytes(_qName), 0, 0, 0, 0, amqp_empty_table);
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r = amqp_get_rpc_reply(_conn);
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if (r.reply_type != AMQP_RESPONSE_NORMAL) {
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throw std::runtime_error("Error declaring queue " + std::string(_qName));
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}
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amqp_basic_consume(_conn, _channel, amqp_cstring_bytes(_qName), amqp_empty_bytes, 0, 1, 0, amqp_empty_table);
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r = amqp_get_rpc_reply(_conn);
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if (r.reply_type != AMQP_RESPONSE_NORMAL) {
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throw std::runtime_error("Error consuming queue " + std::string(_qName));
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}
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fprintf(stderr, "RabbitMQ Init OK %s\n", _qName);
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}
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std::string RabbitMQ::consume()
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{
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amqp_rpc_reply_t res;
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amqp_envelope_t envelope;
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amqp_maybe_release_buffers(_conn);
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res = amqp_consume_message(_conn, &envelope, NULL, 0);
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if (res.reply_type != AMQP_RESPONSE_NORMAL) {
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throw std::runtime_error("Error getting message");
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}
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std::string msg(
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(const char*)envelope.message.body.bytes,
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envelope.message.body.len
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);
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amqp_destroy_envelope(&envelope);
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return msg;
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}
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}
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