memcached_literal_param("UDP messages was attempted, but vector was not setup for it"));
}
- return MEMCACHED_NOT_SUPPORTED;
- }
+ struct msghdr msg;
+ memset(&msg, 0, sizeof(msg));
- ssize_t sent_length= memcached_io_writev(instance, vector, count, with_flush);
- size_t command_length= 0;
- for (uint32_t x= 0; x < count; ++x, vector++)
- {
- command_length+= vector->length;
+ increment_udp_message_id(instance);
+ vector[0].buffer= instance->write_buffer;
+ vector[0].length= UDP_DATAGRAM_HEADER_LENGTH;
+
+ msg.msg_iov= (struct iovec*)vector;
+ msg.msg_iovlen= count;
+
+ uint32_t retry= 5;
+ while (--retry)
+ {
+ ssize_t sendmsg_length= ::sendmsg(instance->fd, &msg, 0);
+ if (sendmsg_length > 0)
+ {
+ break;
+ }
+ else if (sendmsg_length < 0)
+ {
+ if (errno == EMSGSIZE)
+ {
+ return memcached_set_error(*instance, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+ }
+
+ return memcached_set_errno(*instance, errno, MEMCACHED_AT);
+ }
+ }
+
+ return MEMCACHED_SUCCESS;
}
- if (sent_length == -1 or size_t(sent_length) != command_length)
+ bool sent_success= memcached_io_writev(instance, vector, count, with_flush);
+ if (sent_success == false)
{
- rc= MEMCACHED_WRITE_FAILURE;
- WATCHPOINT_ERROR(rc);
- WATCHPOINT_ERRNO(errno);
+ if (memcached_last_error(instance->root) == MEMCACHED_SUCCESS)
+ {
+ return memcached_set_error(*instance, MEMCACHED_WRITE_FAILURE, MEMCACHED_AT);
+ }
+ else
+ {
+ rc= MEMCACHED_WRITE_FAILURE;
+ }
}
else if (memcached_is_replying(instance->root))
{