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// Copyright 2007 - 2021, Alan Antonuk and the rabbitmq-c contributors.
// SPDX-License-Identifier: mit
#include "amqp_time.h"
#include <rabbitmq-c/amqp.h>
#include <rabbitmq-c/tcp_socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <WinSock2.h>
#else
#include <sys/time.h>
#endif
#ifdef NDEBUG
#undef NDEBUG
#endif
#include <assert.h>
static const int fixed_channel_id = 1;
static const char test_queue_name[] = "test_queue";
amqp_connection_state_t setup_connection_and_channel(void) {
amqp_connection_state_t connection_state_ = amqp_new_connection();
amqp_socket_t *socket = amqp_tcp_socket_new(connection_state_);
assert(socket);
int rc = amqp_socket_open(socket, "localhost", AMQP_PROTOCOL_PORT);
assert(rc == AMQP_STATUS_OK);
amqp_rpc_reply_t rpc_reply = amqp_login(
connection_state_, "/", 1, AMQP_DEFAULT_FRAME_SIZE,
AMQP_DEFAULT_HEARTBEAT, AMQP_SASL_METHOD_PLAIN, "guest", "guest");
assert(rpc_reply.reply_type == AMQP_RESPONSE_NORMAL);
amqp_channel_open_ok_t *res =
amqp_channel_open(connection_state_, fixed_channel_id);
assert(res != NULL);
return connection_state_;
}
void close_and_destroy_connection(amqp_connection_state_t connection_state_) {
amqp_rpc_reply_t rpc_reply =
amqp_connection_close(connection_state_, AMQP_REPLY_SUCCESS);
assert(rpc_reply.reply_type == AMQP_RESPONSE_NORMAL);
int rc = amqp_destroy_connection(connection_state_);
assert(rc == AMQP_STATUS_OK);
}
void basic_publish(amqp_connection_state_t connectionState_,
const char *message_) {
amqp_bytes_t message_bytes = amqp_cstring_bytes(message_);
amqp_basic_properties_t properties;
properties._flags = 0;
properties._flags |= AMQP_BASIC_DELIVERY_MODE_FLAG;
properties.delivery_mode = AMQP_DELIVERY_NONPERSISTENT;
int retval = amqp_basic_publish(
connectionState_, fixed_channel_id, amqp_cstring_bytes(""),
amqp_cstring_bytes(test_queue_name),
/* mandatory=*/1,
/* immediate=*/0, /* RabbitMQ 3.x does not support the "immediate" flag
according to
https://www.rabbitmq.com/specification.html */
&properties, message_bytes);
assert(retval == 0);
}
void queue_declare(amqp_connection_state_t connection_state_,
const char *queue_name_) {
amqp_queue_declare_ok_t *res = amqp_queue_declare(
connection_state_, fixed_channel_id, amqp_cstring_bytes(queue_name_),
/*passive*/ 0,
/*durable*/ 0,
/*exclusive*/ 0,
/*auto_delete*/ 1, amqp_empty_table);
assert(res != NULL);
}
char *basic_get(amqp_connection_state_t connection_state_,
const char *queue_name_, uint64_t *out_body_size_) {
amqp_rpc_reply_t rpc_reply;
amqp_time_t deadline;
struct timeval timeout = {5, 0};
int time_rc = amqp_time_from_now(&deadline, &timeout);
assert(time_rc == AMQP_STATUS_OK);
do {
rpc_reply = amqp_basic_get(connection_state_, fixed_channel_id,
amqp_cstring_bytes(queue_name_), /*no_ack*/ 1);
} while (rpc_reply.reply_type == AMQP_RESPONSE_NORMAL &&
rpc_reply.reply.id == AMQP_BASIC_GET_EMPTY_METHOD &&
amqp_time_has_past(deadline) == AMQP_STATUS_OK);
assert(rpc_reply.reply_type == AMQP_RESPONSE_NORMAL);
assert(rpc_reply.reply.id == AMQP_BASIC_GET_OK_METHOD);
amqp_message_t message;
rpc_reply =
amqp_read_message(connection_state_, fixed_channel_id, &message, 0);
assert(rpc_reply.reply_type == AMQP_RESPONSE_NORMAL);
char *body = malloc(message.body.len);
memcpy(body, message.body.bytes, message.body.len);
*out_body_size_ = message.body.len;
amqp_destroy_message(&message);
return body;
}
void publish_and_basic_get_message(const char *msg_to_publish) {
amqp_connection_state_t connection_state = setup_connection_and_channel();
queue_declare(connection_state, test_queue_name);
basic_publish(connection_state, msg_to_publish);
uint64_t body_size;
char *msg = basic_get(connection_state, test_queue_name, &body_size);
assert(body_size == strlen(msg_to_publish));
assert(strncmp(msg_to_publish, msg, body_size) == 0);
free(msg);
close_and_destroy_connection(connection_state);
}
char *consume_message(amqp_connection_state_t connection_state_,
const char *queue_name_, uint64_t *out_body_size_) {
amqp_basic_consume_ok_t *result =
amqp_basic_consume(connection_state_, fixed_channel_id,
amqp_cstring_bytes(queue_name_), amqp_empty_bytes,
/*no_local*/ 0,
/*no_ack*/ 1,
/*exclusive*/ 0, amqp_empty_table);
assert(result != NULL);
amqp_envelope_t envelope;
struct timeval timeout = {5, 0};
amqp_rpc_reply_t rpc_reply =
amqp_consume_message(connection_state_, &envelope, &timeout, 0);
assert(rpc_reply.reply_type == AMQP_RESPONSE_NORMAL);
*out_body_size_ = envelope.message.body.len;
char *body = malloc(*out_body_size_);
if (*out_body_size_) {
memcpy(body, envelope.message.body.bytes, *out_body_size_);
}
amqp_destroy_envelope(&envelope);
return body;
}
void publish_and_consume_message(const char *msg_to_publish) {
amqp_connection_state_t connection_state = setup_connection_and_channel();
queue_declare(connection_state, test_queue_name);
basic_publish(connection_state, msg_to_publish);
uint64_t body_size;
char *msg = consume_message(connection_state, test_queue_name, &body_size);
assert(body_size == strlen(msg_to_publish));
assert(strncmp(msg_to_publish, msg, body_size) == 0);
free(msg);
close_and_destroy_connection(connection_state);
}
int main(void) {
publish_and_basic_get_message("");
publish_and_basic_get_message("TEST");
publish_and_consume_message("");
publish_and_consume_message("TEST");
return 0;
}
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