// IfsScavenger.decl // Copyright Xerox Corporation 1979, 1982 // Last modified July 29, 1982 3:09 PM by Boggs get "IfsFiles.decl" manifest [ // page types recorded in a PLME ptGood = 1 ptBad = 2 ptFree = 3 ptIncorr = 4 // lpte flags lfRewrite = 1 lfDIF = 2 lfDamaged = 4 // unused = 8 // error codes ecScratchFile = 500 ecCreateDiskStream = 504 ecScavengeeFile = 506 ] //---------------------------------------------------------------------------- structure PLME: // Page Link Map Entry //---------------------------------------------------------------------------- [ fileId word = [ sn1 word sn2 word vn word ] pn word nextP word // vda backP word // vda numChars word // 0...TFSwordsPerPage*2 -1 type byte // good, bad, free, incorrigable rewrite bit accessible bit blank bit 6 ] manifest lenPLME = 8 // must be 8 //---------------------------------------------------------------------------- structure String [ length byte; char^1,255 byte ] //----------------------------------------------------------------------------