the responder simply publishes bunch of messages periodically. DSLink at the responder adds timestamp to the message. the requester subscribes the messages and recoreds the timestamp with the time at receiving. the requester finishes to subscribe until the message counter reaches the specified number, or the number of messages specified are received.

before you build this tool, you have to make the DSLink SDK C. See README.md for detail.

Briefly, you just clone the SDK, and type ./tools/build.sh.

% git clone http://github.com/IOT-DSA/sdk-dslink-c.git
% cd sdk-dslink-c
% ./tools/build.sh

To get the source code of this tool, you just clone it like below.

% git clone http://github.com/tanupoo/dsa-bench-c.git
% cd dsa-bench-c

You have to clone the smelt library to the current directory. If you don't want to do so, you have to modify Makefile.

% git clone http://github.com/tanupoo/smelt.git

You also have to set the full path to the DSLink SDK directory into DSLINK_SDK_DIR.

e.g.
% export DSLINK_SDK_DIR=/opt/dsa/sdk-dslink-c

Then, make it.

% make

don't forget to set LD_LIBRARY_PATH like below.

e.g.
% export LD_LIBRARY_PATH=$DSLINK_SDK_DIR/build:./smelt

• responder

  % ./pub -h Usage: pub [OPTIONS] -B,--broker=url set the broker URL. (required) e.g. http://dsa-broker.example.com/conn -D,--dslink=string set the dslink name of this. (default:pub) -l,--log=level set the log level. (info,none,..., default:info) -s,--size=size set the size in bytes of the value. (default:40) -i,--interval=num set the interval in msec to update. (default:1000) -m,--max-count=num set the max value of the counter. (default:10) i.e. how many messages to be sent. -n,--node=string set the dslink name of this. (default:test_node) -d,--debug increase verbosity. -h,--help show this help menu.

  e.g. % ./pub -B http://1.1.3.142/conn -d

• requester

  % ./sub -h Usage: sub [OPTIONS] -B,--broker=url set the broker URL. (required) e.g. http://dsa-broker.example.com/conn -D,--dslink=string set the dslink name of this. (default:sub) -l,--log=level set the log level. (info,none,..., default:info) -m,--max-count=num set the max value of the counter. (default:10) see -p option also. -p,--policy=num set the policy to decide whether to finish the measurement. (default:1) 0: counter in the message reaches. 1: the number of received messages. -n,--node=string set the node name to be subscribed. (default:/downstream/pub/test_node) -q,--qos=num set the level of the QoS. (default:1) -d,--debug increase verbosity. -h,--help show this help menu.

  e.g. % ./sub -B http://1.1.3.142/conn -d