pub enum RLimit {
Show 20 variants
SocketBufferSize,
CoreSize,
DataSize,
Nice,
FileSize,
SigPending,
KQueues,
MemLock,
RSS,
MaxFiles,
MessageQueueByte,
RealTimePriority,
StackSize,
CpuTime,
MaxProcs,
MaxMemory,
MaxFileLocks,
MaxPtty,
MaxRealTime,
MaxThreads,
}
Expand description
Abstraction over the various rlimits.
Variants§
SocketBufferSize
-b: The maximum socket buffer size. RLIMIT_SBSIZE (freebsd, dragonfly)
CoreSize
-c; The maximum size of core files created. RLIMIT_CORE The maximum size core file that this process can create. If the process terminates and would dump a core file larger than this, then no core file is created. So setting this limit to zero prevents core files from ever being created.
DataSize
-d: The maximum size of a process’s data segment. RLIMIT_DATA The maximum size of data memory for the process. If the process tries to allocate data memory beyond this amount, the allocation function fails.
Nice
-e: The maximum scheduling priority (“nice”). RLIMIT_NICE Specifies a ceiling to which the process’s nice value can be raised using setpriority(2) or nice(2). The actual ceiling for the nice value is calculated as 20 - rlim_cur. (This strangeness occurs because negative numbers cannot be specified as resource limit values, since they typically have special meanings. For example, RLIM_INFINITY typically is the same as -1.)
FileSize
-f: The maximum size of files written by the shell and its children. RLIMIT_FSIZE The maximum size of file the process can create. Trying to write a larger file causes a signal: SIGXFSZ.
SigPending
-i: The maximum number of pending signals.RLIMIT_SIGPENDING Specifies the limit on the number of signals that may be queued for the real user ID of the calling process. Both standard and real-time signals are counted for the purpose of checking this limit. However, the limit is only enforced for sigqueue(3); it is always possible to use kill(2) to queue one instance of any of the signals that are not already queued to the process.
KQueues
-k: The maximum number of kqueues that may be allocated. RLIMIT_KQUEUES (freebsd)
MemLock
-l: The maximum size that may be locked into memory. RLIMIT_MEMLOCK, The maximum size (in bytes) which a process may lock into memory using the mlock(2) system call.
RSS
-m: The maximum resident set size (many systems do not honor this limit). RLIMIT_RSS When there is memory pressure and swap is available, prioritize eviction of a process’ resident pages beyond this amount (in bytes).
MaxFiles
-n: The maximum number of open file descriptors (most systems do not allow this value to be set). RLIMIT_NOFILE
MessageQueueByte
-q: The maximum number of bytes in POSIX message queues. RLIMIT_MSGQUEUE A limit on the number of bytes that can be allocated for POSIX message queues for the real user ID of the calling process.
RealTimePriority
-r: The maximum real-time scheduling priority. RLIMIT_RTPRIO
StackSize
-s: The maximum stack size. RLIMIT_STACK
CpuTime
-t: The maximum amount of cpu time in seconds. RLIMIT_CPU
MaxProcs
-u: The maximum number of processes available to a single user. RLIMIT_NPROC
MaxMemory
-v: The maximum amount of virtual memory available to the shell, and, on some systems, to its children. RLIMIT_AS
MaxFileLocks
-x: The maximum number of file locks. RLIMIT_LOCKS
MaxPtty
-P: The maximum number of pseudoterminals. RLIMIT_NPTS
MaxRealTime
-R: The maximum time a real-time process can run before blocking, in microseconds. RLIMIT_RTTIME
MaxThreads
-T: The maximum number of threads. RLIMIT_NPROC (Same as MaxProcs- Linux)