Publisher confirm in rabbitmq-c?

Question

How to implement publisher confirms in rabbitmq-c? In an example written by alanxz this is the approach:

amqp_frame_t frame;
amqp_simple_wait_frame(conn, &frame);
if (frame.method == AMQP_BASIC_ACK)
{
  // Message successfully delivered
}

https://lists.rabbitmq.com/pipermail/rabbitmq-discuss/2012-July/021338.html

However it appears that amqp_frame_t structure has no member method anymore. This is the error that I am getting:

error: ‘amqp_frame_t’ {aka ‘struct amqp_frame_t_’} has no member named ‘method’

I looked up the documentation for amqp_frame_t, this is how the data structure is:

typedef struct amqp_frame_t_ {
  uint8_t frame_type; /* 0 means no event */
  amqp_channel_t channel;
  union {
    amqp_method_t method;
    struct {
      uint16_t class_id;
      uint64_t body_size;
      void *decoded;
    } properties;
    amqp_bytes_t body_fragment;
    struct {
      uint8_t transport_high;
      uint8_t transport_low;
      uint8_t protocol_version_major;
      uint8_t protocol_version_minor;
    } protocol_header;
  } payload;
} amqp_frame_t;

I am trying to write a function:

void publisher_confirm(amqp_connection_state_t conn){
    amqp_frame_t frame;
    frame.frame_type == AMQP_FRAME_METHOD;
    amqp_simple_wait_frame(conn, &frame);
    //if (frame.payload.method == AMQP_BASIC_ACK) 
    //Suppose we could compare some member of the method structure with some value 
    {
      printf("Message successfully delivered to queue.\n");
    }
}

However I don't know how to perform the comparison for frame.payload.method. frame.payload.method is of the type amqp_method_t which is documented here: http://alanxz.github.io/rabbitmq-c/docs/0.2/structamqp__method__t.html#a83e7496e9cc6d407d5798345a0c07504

Publisher confirm in rabbitmq-c?

0 Answers0