[haiku-bugs] Re: [Haiku] #3353: resource.h broken (not implemented yet?)
- From: "Timothy_Gu" <trac@xxxxxxxxxxxx>
- Date: Sun, 11 Jan 2015 22:07:48 -0000
#3353: resource.h broken (not implemented yet?)
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Reporter: scottmc | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: - General | Version: R1/pre-alpha1
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by Timothy_Gu):
Apparently only part of POSIX spec for [gs]et_rlimit is implemented, and
when it encounters an unimplemented property it just returns EINVAL.
See
https://github.com/haiku/haiku/blob/449f7f5a7b9d381c1eeab3ddfbdba0db0ce05c22/src/system/kernel/thread.cpp#L1310-L1327
I'm not sure what the right thing to do is here. Should I make it return
ENOSYS instead? But that would break a lot of apps relying on POSIX. Or I
could make it return 0 as the values.
List of unimplemented properties:
* `RLIMIT_CPU`: maximum amount of CPU time, in seconds, used by a process
* `RLIMIT_DATA`: maximum size of a process' data segment, in bytes
* `RLIMIT_FSIZE`: maximum size of a file, in bytes, that may be created by
a process
* `RLIMIT_STACK` (implemented in `get_rlimit()` but not in `set`): maximum
size of the initial thread's stack, in bytes
* `RLIMIT_AS`: maximum size of a process' total available memory, in bytes
I will investigate the `getrusage()` failure soon.
--
Ticket URL: <https://dev.haiku-os.org/ticket/3353#comment:2>
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