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newlispfanclub.alh.net • View topic - I/O multiplexing on pipes
Page 1 of 1

I/O multiplexing on pipes

PostPosted: Sat May 24, 2014 3:09 pm
by jef

Re: I/O multiplexing on pipes

PostPosted: Sun May 25, 2014 2:22 am
by Lutz
What OS and newLISP are you using? Is your newLISP 32bit or 64bit and does it say "ffilib" in the banner? If it does not say "ffilib" in the banner, it is only compiled for the simple FFI which ignores type specs in the import statement. Only with "ffilib" in the banner it is compiled for the extended FFI described in the reference manual.

There are testcases for int sign extension in newlisp-x.x.x/util/ffitest.c and newlisp-x.x.x/qa-specific-tests/qa-libffi which do work on 32bit and 64bit Unix and 32bit Windows.

For non-blocking pipes try to create named pipes using open with the "non-block" option (only on Unix), then use peek, which will return nil on closed pipe handles.

Re: I/O multiplexing on pipes

PostPosted: Sun May 25, 2014 7:00 pm
by jef

Re: I/O multiplexing on pipes

PostPosted: Sun May 25, 2014 7:30 pm
by Lutz

Re: I/O multiplexing on pipes

PostPosted: Sat May 31, 2014 9:58 am
by jef

Re: I/O multiplexing on pipes

PostPosted: Mon Jun 02, 2014 12:05 pm
by Astrobe
int returnneg(void) is a valid prototype.It's actually "more correct" than int returnneg(): the former tells that the function takes no arguments, while the latter can take any number of arguments.

source: http://www.drdobbs.com/c-and-c-case-stu ... /184401562

Re: I/O multiplexing on pipes

PostPosted: Sun Jun 15, 2014 2:30 am
by ralph.ronnquist

Re: I/O multiplexing on pipes

PostPosted: Sun Jun 15, 2014 5:52 pm
by jef