Module: FileUtils::IOCTL

Defined in:
lib/pocolog/cp_cow.rb

Constant Summary

IOC_NRBITS = 
8
IOC_TYPEBITS = 
8
IOC_SIZEBITS = 
14
IOC_DIRBITS = 
2
IOC_NRSHIFT = 
0
IOC_TYPESHIFT = 
IOC_NRSHIFT + IOC_NRBITS
IOC_SIZESHIFT = 
IOC_TYPESHIFT + IOC_TYPEBITS
IOC_DIRSHIFT = 
IOC_SIZESHIFT + IOC_SIZEBITS
IOC_NONE = 
0
IOC_WRITE = 
1
IOC_READ = 
2

Class Method Summary collapse

Class Method Details

.IOC(dir, type, nr, size) ⇒ Object 



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# File 'lib/pocolog/cp_cow.rb', line 17

def self.IOC(dir, type, nr, size)
    (dir << IOC_DIRSHIFT) +
        (type << IOC_TYPESHIFT) +
        (nr   << IOC_NRSHIFT) +
        (size << IOC_SIZESHIFT)
end

.IOR(type, nr, size) ⇒ Object 



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# File 'lib/pocolog/cp_cow.rb', line 28

def self.IOR(type, nr, size)
    IOC(IOC_READ, type, nr, size)
end

.IOW(type, nr, size) ⇒ Object 



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# File 'lib/pocolog/cp_cow.rb', line 24

def self.IOW(type, nr, size)
    IOC(IOC_WRITE, type, nr, size)
end