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ulimit: add new limits from FreeBSD/NetBSD

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Short option names are taken from sh for those platforms where possible.
This commit is contained in:
David Adam
2022-03-23 21:49:09 +08:00
parent 2c2b87af07
commit 8c4c526698
4 changed files with 73 additions and 3 deletions
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17
doc_src/cmds/ulimit.rst
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@@ -18,6 +18,9 @@ Description
Use one of the following switches to specify which resource limit to set or report:
**-b** or **--socket-buffers**
The maximum size of socket buffers.
**-c** or **--core-size**
The maximum size of core files created. By setting this limit to zero, core dumps can be disabled.
@@ -57,13 +60,25 @@ Use one of the following switches to specify which resource limit to set or repo
**-u** or **--process-count**
The maximum number of processes available to the current user.
**-w** or **--swap-size**
The maximum swap space available to the current user.
**-v** or **--virtual-memory-size**
The maximum amount of virtual memory available to the shell.
**-y** or **--realtime-maxtime**
The maximum contiguous realtime CPU time in microseconds.
Note that not all these limits are available in all operating systems.
**-K** or **--kernel-queues**
The maximum number of kqueues (kernel queues) for the current user.
**-P** or **--ptys**
The maximum number of pseudo-terminals for the current user.
**-T** or **--threads**
The maximum number of simultaneous threads for the current user.
Note that not all these limits are available in all operating systems; consult the documentation for ``setrlimit`` in your operating system.
The value of limit can be a number in the unit specified for the resource or one of the special values ``hard``, ``soft``, or ``unlimited``, which stand for the current hard limit, the current soft limit, and no limit, respectively.