Am 12.11.2021 um 16:24 schrieb Grant Edwards:
Are the various sys_arch.c functions allowed to return error codes
other than those specifically listed in the documentation?
For many of them, only 0 and one other value (e.g. SYS_ARCH_TIMEOUT or
ERR_MEM) are documented as return values. The underlying OS operations
usually have far more that two possible outcomes. Is it appropriate
to return ERR_* values other than those documented?
Is sys_mbox_trypost() allowed to return errors other than ERR_MEM?
For example, can I return ERR_ARG from sys_arch_mbox_trypost() if one
of the arguments is illegal?
Is sys_arch_mbox_fetch() allowed to return error codes other than
SYS_ARCH_TIMEOUT?
Were I to _guess_, I would assume that functions returning err_t can
return any error codes they want, but functions returning millisecond
counts can't?
You're right with your guess. Although I would have thought the
documentation is clear here, so there would be no need to guess...
Feel free to provide a patch updating the documentation if you think it
needs improvement!
Regards,
Simon
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