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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <amqp.h>
#include <amqp_framing.h>
#include <unistd.h>
static void die_on_error(int x, char const *context) {
if (x < 0) {
fprintf(stderr, "%s: %s\n", context, strerror(-x));
exit(1);
}
}
static void die_on_amqp_error(amqp_rpc_reply_t x, char const *context) {
switch (x.reply_type) {
case AMQP_RESPONSE_NORMAL:
return;
case AMQP_RESPONSE_NONE:
fprintf(stderr, "%s: missing RPC reply type!", context);
break;
case AMQP_RESPONSE_LIBRARY_EXCEPTION:
fprintf(stderr, "%s: %s\n", context, strerror(x.library_errno));
break;
case AMQP_RESPONSE_SERVER_EXCEPTION:
switch (x.reply.id) {
case AMQP_CONNECTION_CLOSE_METHOD: {
amqp_connection_close_t *m = (amqp_connection_close_t *) x.reply.decoded;
fprintf(stderr, "%s: server connection error %d, message: %*s",
context,
m->reply_code,
(int) m->reply_text.len,
(char *) m->reply_text.bytes);
break;
}
case AMQP_CHANNEL_CLOSE_METHOD: {
amqp_channel_close_t *m = (amqp_channel_close_t *) x.reply.decoded;
fprintf(stderr, "%s: server channel error %d, message: %*s",
context,
m->reply_code,
(int) m->reply_text.len,
(char *) m->reply_text.bytes);
break;
}
default:
fprintf(stderr, "%s: unknown server error, method id 0x%08X", context, x.reply.id);
break;
}
break;
}
exit(1);
}
int main(int argc, char const * const *argv) {
char const *hostname;
int port;
char const *exchange;
char const *routingkey;
char const *messagebody;
int sockfd;
amqp_connection_state_t conn;
if (argc < 6) {
fprintf(stderr, "Usage: amqp_sendstring host port exchange routingkey messagebody\n");
return 1;
}
hostname = argv[1];
port = atoi(argv[2]);
exchange = argv[3];
routingkey = argv[4];
messagebody = argv[5];
conn = amqp_new_connection();
die_on_error(sockfd = amqp_open_socket(hostname, port), "Opening socket");
amqp_set_sockfd(conn, sockfd);
die_on_amqp_error(amqp_login(conn, "/", 131072, AMQP_SASL_METHOD_PLAIN, "guest", "guest"),
"Logging in");
{
amqp_basic_properties_t props;
props._flags = AMQP_BASIC_CONTENT_TYPE_FLAG;
props.content_type = amqp_cstring_bytes("text/plain");
die_on_error(amqp_basic_publish(conn,
amqp_cstring_bytes(exchange),
amqp_cstring_bytes(routingkey),
0,
0,
&props,
amqp_cstring_bytes(messagebody)),
"Publishing");
}
printf("Waiting for frames...\n");
while (1) {
amqp_frame_t frame;
int result = amqp_simple_wait_frame(conn, &frame);
printf("Result %d\n", result);
printf("Frame type %d, channel %d\n", frame.frame_type, frame.channel);
if (result == 0) break;
amqp_maybe_release_buffers(conn);
}
amqp_destroy_connection(conn);
die_on_error(close(sockfd), "Closing socket");
return 0;
}
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