suplib/src/DevT.i3


 Copyright 1999-2003 John D. Polstra.
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The DevT interface abstracts out some operations involving the Unix dev_t type. This is intended to solve some portability problems.

INTERFACE DevT;

IMPORT
  OSError, TokScan, Utypes, Word;

TYPE
  T = Utypes.dev_t;

PROCEDURE Decode(t: TEXT): T RAISES {TokScan.Error};
Encode a dev_t into a text string.

PROCEDURE Encode(READONLY dev: T): TEXT;
Decode a text string into a dev_t.

PROCEDURE Equal(READONLY a, b: T): BOOLEAN;
Test whether two dev_t values are equal.

PROCEDURE Hash(READONLY dev: T): Word.T;
Compute a hash value from a dev_t.

PROCEDURE Mknod(path: TEXT;
                mode: Utypes.mode_t;
		READONLY dev: T) RAISES {OSError.E};
Execute a Unix mknod call with the given arguments.

END DevT.

interface Utypes is in: