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mavlink FTP: Speed up transfers by longer bursts

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Lorenz Meier
2015-05-15 21:14:40 +02:00
parent 5c53d38652
commit 97b8e7a20e
2 changed files with 10 additions and 3 deletions
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src/modules/mavlink/mavlink_ftp.cpp
+8 -2
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@@ -491,6 +491,7 @@ MavlinkFTP::_workBurst(PayloadHeader* payload, uint8_t target_system_id)
// Setup for streaming sends
_session_info.stream_download = true;
_session_info.stream_offset = payload->offset;
_session_info.stream_chunk_transmitted = 0;
_session_info.stream_seq_number = payload->seq_number + 1;
_session_info.stream_target_system_id = target_system_id;
@@ -872,6 +873,7 @@ void MavlinkFTP::send(const hrt_abstime t)
} else {
payload->size = bytes_read;
_session_info.stream_offset += bytes_read;
_session_info.stream_chunk_transmitted += bytes_read;
}
}
@@ -890,8 +892,12 @@ void MavlinkFTP::send(const hrt_abstime t)
#ifndef MAVLINK_FTP_UNIT_TEST
if (max_bytes_to_send < (get_size()*2)) {
more_data = false;
payload->burst_complete = true;
_session_info.stream_download = false;
/* perform transfers in 35K chunks - this is determined empirical */
if (_session_info.stream_chunk_transmitted > 35000) {
payload->burst_complete = true;
_session_info.stream_download = false;
_session_info.stream_chunk_transmitted = 0;
}
} else {
#endif
more_data = true;