Module posix.sys.resource
Control Maximum System Resource Consumption.
    
    
    - 
    
    getrlimit (resource)
    
- 
    Get resource limits for this process.
    Parameters:
        - resource
            int
         one of RLIMIT_CORE,RLIMIT_CPU,RLIMIT_DATA,RLIMIT_FSIZE,RLIMIT_NOFILE,RLIMIT_STACKorRLIMIT_AS
 Returns:
        - 
           int
        softlimit
- 
           int
        hardlimit, if successful
 Or
        - 
        nil
- 
           string
        error message
- 
           int
        errnum
 See also:Usage:local sysres = require "posix.sys.resource"
sysres.getrlimit(sysres.RLIMIT_NOFILE) 
- 
    
    setrlimit (resource[, softlimit[, hardlimit]])
    
- 
    Set a resource limit for subsequent child processes.
    Parameters:
        - resource
            int
         one of RLIMIT_CORE,RLIMIT_CPU,RLIMIT_DATA,RLIMIT_FSIZE,RLIMIT_NOFILE,RLIMIT_STACKorRLIMIT_AS
- softlimit
         process may receive a signal when reached
         (optional)
        
- hardlimit
         process may be terminated when reached
         (optional)
        
 Returns:
           int
        0, if successful
 Or
        - 
        nil
- 
           string
        error message
- 
           int
        errnum
 See also:Usage:local sysres = require "posix.sys.resource"
local lim = sysres.getlimit(sysres.RLIMIT_NOFILE)
lim.rlim_cur = lim.rlim_cur / 2
sysres.setrlimit(sysres.RLIMIT_NOFILE, lim) 
    - 
    
    PosixRlimit
    
- 
    Resource limit record.
    Fields:
        - rlim_cur
            int
         current soft limit
        
- rlim_max
            int
         hard limit
        
 
    - 
    
    posix.sys.resource
    
- 
    Rlimit constants.
    Fields:
        - RLIM_INFINITY
            int
         unlimited resource usage
        
- RLIM_SAVED_CUR
            int
         saved current resource soft limit
        
- RLIM_SAVED_MAX
            int
         saved resource hard limit
        
- RLIMIT_CORE
            int
         maximum bytes allowed for a core file
        
- RLIMIT_CPU
            int
         maximum cputime secconds allowed per process
        
- RLIMIT_DATA
            int
         maximum data segment bytes per process
        
- RLIMIT_FSIZE
            int
         maximum bytes in any file
        
- RLIMIT_NOFILE
            int
         maximum number of open files per process
        
- RLIMIT_STACK
            int
         maximum stack segment bytes per process
        
- RLIMIT_AS
            int
         maximum bytes total address space per process
        
 Usage:for name, value in pairs (require "posix.sys.resource") do
  if type (value) == "number" then
    print (name, value)
   end
end