int aeron_driver_receiver_init(
aeron_driver_receiver_t *receiver,
aeron_driver_context_t *context,
aeron_system_counters_t *system_counters,
aeron_distinct_error_log_t *error_log)
{
if (aeron_udp_transport_poller_init(&receiver->poller) < 0)
{
return -1;
}
for (size_t i = 0; i < AERON_DRIVER_RECEIVER_NUM_RECV_BUFFERS; i++)
{
size_t offset = 0;
if (aeron_alloc_aligned(
(void **)&receiver->recv_buffers.buffers[i],
&offset,
AERON_DRIVER_RECEIVER_MAX_UDP_PACKET_LENGTH,
AERON_CACHE_LINE_LENGTH * 2) < 0)
{
int errcode = errno;
aeron_set_err(errcode, "%s:%d: %s", __FILE__, __LINE__, strerror(errcode));
return -1;
}
receiver->recv_buffers.iov[i].iov_base = receiver->recv_buffers.buffers[i] + offset;
receiver->recv_buffers.iov[i].iov_len = AERON_DRIVER_RECEIVER_MAX_UDP_PACKET_LENGTH;
}
receiver->images.array = NULL;
receiver->images.length = 0;
receiver->images.capacity = 0;
receiver->pending_setups.array = NULL;
receiver->pending_setups.length = 0;
receiver->pending_setups.capacity = 0;
receiver->context = context;
receiver->error_log = error_log;
receiver->receiver_proxy.command_queue = &context->receiver_command_queue;
receiver->receiver_proxy.fail_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_RECEIVER_PROXY_FAILS);
receiver->receiver_proxy.threading_mode = context->threading_mode;
receiver->receiver_proxy.receiver = receiver;
receiver->errors_counter = aeron_system_counter_addr(system_counters, AERON_SYSTEM_COUNTER_ERRORS);
receiver->invalid_frames_counter = aeron_system_counter_addr(system_counters, AERON_SYSTEM_COUNTER_INVALID_PACKETS);
receiver->total_bytes_received_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_BYTES_RECEIVED);
return 0;
}
int aeron_publication_image_create(
aeron_publication_image_t **image,
aeron_receive_channel_endpoint_t *endpoint,
aeron_driver_context_t *context,
int64_t correlation_id,
int32_t session_id,
int32_t stream_id,
int32_t initial_term_id,
int32_t active_term_id,
int32_t initial_term_offset,
aeron_position_t *rcv_hwm_position,
aeron_position_t *rcv_pos_position,
aeron_congestion_control_strategy_t *congestion_control,
struct sockaddr_storage *control_address,
struct sockaddr_storage *source_address,
int32_t term_buffer_length,
int32_t sender_mtu_length,
aeron_loss_reporter_t *loss_reporter,
bool is_reliable,
bool is_sparse,
aeron_system_counters_t *system_counters)
{
char path[AERON_MAX_PATH];
int path_length = aeron_publication_image_location(
path,
sizeof(path),
context->aeron_dir,
endpoint->conductor_fields.udp_channel->canonical_form,
session_id,
stream_id,
correlation_id);
aeron_publication_image_t *_image = NULL;
const uint64_t usable_fs_space = context->usable_fs_space_func(context->aeron_dir);
const uint64_t log_length = aeron_logbuffer_compute_log_length((uint64_t)term_buffer_length,
context->file_page_size);
bool is_multicast = endpoint->conductor_fields.udp_channel->multicast;
int64_t now_ns = context->nano_clock();
*image = NULL;
if (usable_fs_space < log_length)
{
aeron_set_err(
ENOSPC,
"Insufficient usable storage for new log of length=%" PRId64 " in %s", log_length, context->aeron_dir);
return -1;
}
if (aeron_alloc((void **)&_image, sizeof(aeron_publication_image_t)) < 0)
{
aeron_set_err(ENOMEM, "%s", "Could not allocate publication image");
return -1;
}
_image->log_file_name = NULL;
if (aeron_alloc((void **)(&_image->log_file_name), (size_t)path_length + 1) < 0)
{
aeron_free(_image);
aeron_set_err(ENOMEM, "%s", "Could not allocate publication image log_file_name");
return -1;
}
if (aeron_loss_detector_init(
&_image->loss_detector,
is_multicast,
is_multicast ?
aeron_loss_detector_nak_multicast_delay_generator : aeron_loss_detector_nak_unicast_delay_generator,
aeron_publication_image_on_gap_detected, _image) < 0)
{
aeron_free(_image);
aeron_set_err(ENOMEM, "%s", "Could not init publication image loss detector");
return -1;
}
if (context->map_raw_log_func(
&_image->mapped_raw_log, path, is_sparse, (uint64_t)term_buffer_length, context->file_page_size) < 0)
{
aeron_free(_image->log_file_name);
aeron_free(_image);
aeron_set_err(aeron_errcode(), "error mapping network raw log %s: %s", path, aeron_errmsg());
return -1;
}
_image->map_raw_log_close_func = context->map_raw_log_close_func;
strncpy(_image->log_file_name, path, (size_t)path_length);
_image->log_file_name[path_length] = '\0';
_image->log_file_name_length = (size_t)path_length;
_image->log_meta_data = (aeron_logbuffer_metadata_t *)(_image->mapped_raw_log.log_meta_data.addr);
_image->log_meta_data->initial_term_id = initial_term_id;
_image->log_meta_data->mtu_length = sender_mtu_length;
_image->log_meta_data->term_length = term_buffer_length;
_image->log_meta_data->page_size = (int32_t)context->file_page_size;
_image->log_meta_data->correlation_id = correlation_id;
_image->log_meta_data->is_connected = 0;
_image->log_meta_data->end_of_stream_position = INT64_MAX;
aeron_logbuffer_fill_default_header(
_image->mapped_raw_log.log_meta_data.addr, session_id, stream_id, initial_term_id);
_image->endpoint = endpoint;
_image->congestion_control = congestion_control;
_image->loss_reporter = loss_reporter;
_image->loss_reporter_offset = -1;
_image->nano_clock = context->nano_clock;
_image->epoch_clock = context->epoch_clock;
_image->conductor_fields.subscribable.array = NULL;
_image->conductor_fields.subscribable.length = 0;
_image->conductor_fields.subscribable.capacity = 0;
_image->conductor_fields.subscribable.add_position_hook_func = aeron_driver_subscribable_null_hook;
_image->conductor_fields.subscribable.remove_position_hook_func = aeron_driver_subscribable_null_hook;
_image->conductor_fields.subscribable.clientd = NULL;
_image->conductor_fields.managed_resource.registration_id = correlation_id;
_image->conductor_fields.managed_resource.clientd = _image;
_image->conductor_fields.managed_resource.incref = NULL;
_image->conductor_fields.managed_resource.decref = NULL;
_image->conductor_fields.is_reliable = is_reliable;
_image->conductor_fields.status = AERON_PUBLICATION_IMAGE_STATUS_ACTIVE;
_image->conductor_fields.liveness_timeout_ns = context->image_liveness_timeout_ns;
_image->session_id = session_id;
_image->stream_id = stream_id;
_image->rcv_hwm_position.counter_id = rcv_hwm_position->counter_id;
_image->rcv_hwm_position.value_addr = rcv_hwm_position->value_addr;
_image->rcv_pos_position.counter_id = rcv_pos_position->counter_id;
_image->rcv_pos_position.value_addr = rcv_pos_position->value_addr;
_image->initial_term_id = initial_term_id;
_image->term_length_mask = (int32_t)term_buffer_length - 1;
_image->position_bits_to_shift = (size_t)aeron_number_of_trailing_zeroes((int32_t)term_buffer_length);
_image->mtu_length = sender_mtu_length;
_image->last_sm_change_number = -1;
_image->last_loss_change_number = -1;
_image->is_end_of_stream = false;
memcpy(&_image->control_address, control_address, sizeof(_image->control_address));
memcpy(&_image->source_address, source_address, sizeof(_image->source_address));
_image->heartbeats_received_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_HEARTBEATS_RECEIVED);
_image->flow_control_under_runs_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_FLOW_CONTROL_UNDER_RUNS);
_image->flow_control_over_runs_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_FLOW_CONTROL_OVER_RUNS);
_image->status_messages_sent_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_STATUS_MESSAGES_SENT);
_image->nak_messages_sent_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_NAK_MESSAGES_SENT);
_image->loss_gap_fills_counter = aeron_system_counter_addr(
system_counters, AERON_SYSTEM_COUNTER_LOSS_GAP_FILLS);
const int64_t initial_position = aeron_logbuffer_compute_position(
active_term_id, initial_term_offset, _image->position_bits_to_shift, initial_term_id);
_image->begin_loss_change = -1;
_image->end_loss_change = -1;
_image->loss_term_id = active_term_id;
_image->loss_term_offset = initial_term_offset;
_image->loss_length = 0;
_image->begin_sm_change = -1;
_image->end_sm_change = -1;
_image->next_sm_position = initial_position;
_image->next_sm_receiver_window_length = _image->congestion_control->initial_window_length(
_image->congestion_control->state);
_image->last_sm_position = initial_position;
_image->last_sm_position_window_limit = initial_position + _image->next_sm_receiver_window_length;
_image->last_packet_timestamp_ns = now_ns;
_image->last_status_message_timestamp = 0;
_image->conductor_fields.clean_position = initial_position;
_image->conductor_fields.time_of_last_status_change_ns = now_ns;
aeron_counter_set_ordered(_image->rcv_hwm_position.value_addr, initial_position);
aeron_counter_set_ordered(_image->rcv_pos_position.value_addr, initial_position);
*image = _image;
return 0;
}