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Error (asio): epoll: Function not implemented

Added by An GA over 10 years ago

I'm new on Wt, and I need to create an executable in order to run in an embedded device. As the device has limited resources, I decided to build the boost and wt libraries statically, and after that build the wt executable.

I followed the instructions that appears on the wiki for embedded solutions, and only build the required boost libraries (loost_system boost_thread boost_signals boost_random boost_regex boost_date_time boost_program_options boost_filesystem). I built boost and wt libraries without errors, and after struggling with the cross compiler I achieved to create the executable for the embedded device.

However, when I pretend to run it with the following command in the device, I get this error:

  1. ./hellowt ---docroot=. ---http-address=0.0.0.0 ---http-port=8080
    [2000-Jan-01 21:57:35.657603] 589 - [info] "WServer/wthttp: initializing built-in wthttpd"
    [2000-Jan-01 21:57:35.667132] 589 - [info] "WServer/wthttp: fatal: Error (asio): epoll: Function not implemented"

I hope that somebody could help me, because I'm really lost.

Thanks in advance.

Ane


Replies (3)

RE: Error (asio): epoll: Function not implemented - Added by Koen Deforche over 10 years ago

Hey,

Just curious, what OS/version is your device running?

http://en.wikipedia.org/wiki/Epoll

http://www.boost.org/doc/libs/1_51_0/doc/html/boost_asio/using.html

You can configure boost::asio to select a particular low-level primitive for its asynchronous multiplexing, e.g. to fall back to POSIX select() for example.

Regards,

koen

RE: Error (asio): epoll: Function not implemented - Added by An GA over 10 years ago

Thank you for your answer! It helps me a lot, as now I'm able to run the hello world example on the device!

If someone has the same problem, I've solved it by defining the BOOST_ASIO_DISABLE_EPOLL macro on the ../boost/asio/detail/config.hpp file and rebuilding boost and wt libraries again.

The device is running Linux with 2.6v kernel on a powerpc, but I've just realized that it has some functions disabled such as the epoll.

Regards,

Ane

RE: Error (asio): epoll: Function not implemented - Added by Steven Descheemaeker about 10 years ago

Hello,

I'm just curious, how did you cross-compile wt for your device?

You did this with cmake and a toolchain file ? If so can you tell me how you ?

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