I need to use mqtt broker in a project of mine. But i felt there is a huge lack of documentation. Some of the available example codes i found didn't really work for me. Followed this example, but got compilation error
[subho@localhost] taboo $ g++ mqtt.cpp -o a
/tmp/ccg9xcFV.o: In function `myMosq::myMosq(char const*, char const*, char const*, int)':
mqtt.cpp:(.text+0x31): undefined reference to `mosqpp::mosquittopp::mosquittopp(char const*, bool)'
mqtt.cpp:(.text+0x41): undefined reference to `mosqpp::lib_init()'
mqtt.cpp:(.text+0x9c): undefined reference to `mosqpp::mosquittopp::connect_async(char const*, int, int)'
mqtt.cpp:(.text+0xa8): undefined reference to `mosqpp::mosquittopp::loop_start()'
mqtt.cpp:(.text+0xb9): undefined reference to `mosqpp::mosquittopp::~mosquittopp()'
/tmp/ccg9xcFV.o: In function `myMosq::~myMosq()':
mqtt.cpp:(.text+0xf5): undefined reference to `mosqpp::mosquittopp::loop_stop(bool)'
mqtt.cpp:(.text+0xfa): undefined reference to `mosqpp::lib_cleanup()'
mqtt.cpp:(.text+0x106): undefined reference to `mosqpp::mosquittopp::~mosquittopp()'
mqtt.cpp:(.text+0x12c): undefined reference to `mosqpp::mosquittopp::~mosquittopp()'
/tmp/ccg9xcFV.o: In function `myMosq::send_message(char const*)':
mqtt.cpp:(.text+0x1b0): undefined reference to `mosqpp::mosquittopp::publish(int*, char const*, int, void const*, int, bool)'
/tmp/ccg9xcFV.o:(.rodata._ZTI6myMosq[_ZTI6myMosq]+0x10): undefined reference to `typeinfo for mosqpp::mosquittopp'
collect2: error: ld returned 1 exit status
Also tried to look into the sample codes given in the mqtt archive but make command failed to compile them. So tried to compile the sample files separately which succeeded but while running it gives buffer overflow and mosquito terminal output is
[subho@localhost] Web_App $ (master) mosquitto
1426996368: mosquitto version 1.3.5 (build date 2014-10-16 10:32:53+0000) starting
1426996368: Using default config.
1426996368: Opening ipv4 listen socket on port 1883.
1426996368: Opening ipv6 listen socket on port 1883.
1426996369: New connection from 127.0.0.1 on port 1883.
1426996369: New client connected from 127.0.0.1 as tempconv (c1, k60).
1426996369: Socket error on client tempconv, disconnecting.
1426997037: New connection from 127.0.0.1 on port 1883.
1426997037: New client connected from 127.0.0.1 as tempconv (c1, k60).
1426997037: Socket error on client tempconv, disconnecting.
1426997314: New connection from 127.0.0.1 on port 1883.
1426997314: New client connected from 127.0.0.1 as tempconv (c1, k60).
1426997314: Socket error on client tempconv, disconnecting.
It would be great if somebody has worked with mqtt before and can share a basic code. Thanks. I have pushed all the files i tried in github, you can have a look here.
