On 12/09/2011 17:01, Mark Morgan Lloyd wrote:
Mark Morgan Lloyd wrote:
Martin wrote:
Ok, the below code, emualtes the pseudoterminal handling => the read is supposed to bne none blocking.

maybe some of the constants are indeed wrong for your system (endianess)?

Thanks, I'll work on that as soon as I have time. If it were a simple endianness issue I'd expect PPC (PowerPC, in an old Mac) to fail.

>>   O_NONBLOCK = &04000;

For some reason that reminded me of a discussion of serial access on OSX in the fpc-pascal ML a few days ago. Nobody actually said in that thread that that varied by architecture, but a bit of Googling got me http://comments.gmane.org/gmane.linux.kernel/1093174 hence on one of my systems

$ find . -name fcntl.h -exec grep O_NONBLOCK \{\} \; -print

#define O_NONBLOCK      0x4000
./include/asm-sparc64/fcntl.h

etc. Also fpc/.../linux/ostypes.inc specifically has a different value for SPARC... GOK who's originally responsible for that inconsistency.


I added a ifdef, as found in the fpc source.

Most curious that it depends on CPUsparc , instead of OSsomething.

Since I have no means of testing, could I asked you, please?


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