DIRECTORYBasics USING [ BITAND ],Commander USING [ Handle ],IO USING [ STREAM ],Rope USING [ ROPE ],SpyLog USING [ Here ];Log: CEDAR DEFINITIONS IMPORTS Basics, SpyLog = {PD: TYPE = RECORD [attended: BOOLEAN_FALSE,sysIn: IO.STREAM,sysOut: IO.STREAM, -- IOs for error and system status reporting ch: Commander.Handle_NIL];pd: REF PD;ROPE: TYPE=Rope.ROPE;LogProc: TYPE = PROC[group: CARDINAL_1, info: LogInfo_[]];LogInfo: TYPE = RECORD[logCode: LogCode_none,logD1: LONG CARDINAL_0,logD2: LONG CARDINAL_0];LogCode: TYPE = {none, data, before, after, during, dataSmarts, dataParty, dataConv, lc1, lc2, lc3, lc4, lc5, lc6 };loggingGroups: CARDINAL;WriteData: PROC[info: LogInfo];LOG: LogProc = TRUSTED INLINE {IF Basics.BITAND[group, loggingGroups]#0 THEN {WriteData[info]; SpyLog.Here[]; }; };SLOG: PROC[group: CARDINAL_1] = TRUSTED INLINE {IF Basics.BITAND[group, Log.loggingGroups]#0 THEN {Noop[]; SpyLog.Here[]; }; };Noop: PROC;DoLog: PROC[groups: CARDINAL_177777B];WhereToReport: TYPE=ATOM;ThHandle: TYPE = LONG CARDINAL -- Thrush.ThHandle --;nullHandle: ThHandle = 0;WhereProc: TYPE = PROC[fixedWhereData: REF, whereData: REF] RETURNS[s: IO.STREAM_NIL];DNFProc: TYPE = PROC[fixedWhereData: REF, whereData: REF] RETURNS[default: BOOL];RegisterWhereToReport: PROC[proc: WhereProc_NIL, where: WhereToReport, fixedWhereData: REF_NIL, defaultIfNotFound: DNFProc_NIL];FindWhere: PROC[where: WhereToReport, whereData: REF] RETURNS [s: IO.STREAM_NIL];Report: PROC[remark: ROPE, where: WhereToReport_NIL, whereData: REF _NIL];Problem: PROC[remark: ROPE_NIL, where: WhereToReport_NIL, whereData: REF _NIL];ProblemBool: PROC[remark: ROPE_NIL, where: WhereToReport_NIL, bool: BOOL_FALSE, whereData: REF_NIL]RETURNS[sameBool: BOOL];ProblemHandle: PROC[remark: ROPE_NIL, where: WhereToReport_NIL,handle: ThHandle _ nullHandle, whereData: REF_NIL]RETURNS[sameHandle: ThHandle];CLog: TYPE = REF CLogBody;CLogBody: TYPE = RECORD [logStream: IO.STREAM,logReadPos: INT_0,CommandProc: PROC[CLog]];MakeCLog: PROC[fileName: ROPE, CommandProc: PROC[CLog]]RETURNS[cLog: CLog];WriteCLog: PROC[cLog: CLog, entry: ROPE];DoCLog: PROC[cLog: CLog, entry: ROPE];RedoCLog: PROC[cLog: CLog];}.     Log.mesaLast modified by D. Swinehart, December 16, 1983 1:14 pmLogging of errors and status reports; Spying for performance measurementVariablesTypesError, Information, Performance LoggingError reporting and managementReport finds an appropriate stream and prints a time-stamped version of remark.  Clients can register procedures to interpret the WhereToReport atoms and obtain the appropriate stream for a given call, aided by the lead supplied in the Report call.Problem is intended for reporting unexpected errors and conditions.  It will raise the indicated signal, or an internal one by default, if the system is currently attended (there's an executive command.)  In any case, it will report the remark argument.  It will return automatically or if the operator proceeds from the signal, so the caller needs to do what is necessary to recover after calling Problem.The other Problem... functions are for convenience in returning innocuous values from procedures.The defaultIfNotFound parameter to the registration procedure indicates whether the message should be ignored (FALSE) or printed (TRUE) when the corresponding stream-finding procedure returns NIL.IF defaultIfNotFound=NIL, answer assumed TRUECommand Logging, indirect execution.Originally developed as part of ThMessageDBImplCommandProc should consume any command in the log, such that if it's the lastcommand, we're at end of fileWrite it at end, then read it and do it, using CommandProcTypical thing to do after a MakeCLog, to replay an old one.Э╩к  Ш JЪЬЩJЪЬ8Щ8JШ JЪЬHЩHJШ Ъ╧k	Ш	JЪЬЭЬЭЬШJЪЬ
ЭЬШJЪЭЬЭЬЭЬШJЪЬЭЬЭЬШJЪЬЭЬ	ШJШJШ ЧJЪЬЭЬЭЬШ1JШ Ъ╧c	Щ	JШ ЪЭЬЭЬЭЬШJЪЬ
ЭЬЭЬШJЪЬЭЬЭЬШJЪЬЭЬЭЬЮ-Ш@JЪЬЭШJШЧJЪЬЭЬЭЬШJШ ЧЩJШ JЪЭЬЭЬЭЬШJШ ЧЩ'JШ JЪ╧nЬЭЬЭЬЭЬШ:ЪЬ	ЭЬЭЬШJШJЪЬЭЬЭЬШJЪЬЭЬЭЬШЧШJШcЧJЪЬЭЬШJЪЯ	ЬЭЬШЪЭЬЭЬЭЬШЪЭЬЭЬЭЬШ/JЪЬ%Ш%ЧЧЪ
ЭЬЭЬЭЬЭЬЭЬШ0ЪЭЬЭЬЭЬШ3JЪЬШЧЧJЪЯЬЭЬШJЪЯЬЭЬ	ЭЬ
Ш&JШ ЩJЪ
ЯЬBЯЬ4ЯЬHЯЬЯЬЩ°JЪЯЬцЯЬЫЯЬЩЦJЪЬ
Я
ЬMЩaJЪЬ╧bЬYЭЬЭЬ:ЭЩ─ЧJШ JЪЬЭЬЭЬШJЪ	Ь
ЭЬЭЬЭЬЮЬШ5JШJЪЯ	ЬЭЬЭЬЭЬЭЬЭЬЭЬЭЬЭЬШVJЪЯЬЭЬЭЬЭЬЭЬЭЬ
ЭЬШQЪЯЬЭЬШJЪ	ЬЭЬ(ЭЬЭЬЭЬШdJЪЭЬЭЬЭЩ-ЧJЪЯ	ЬЭЬ"ЭЬЭЬЭЬЭЬЭЬШQJШ JЪЯЬЭЬ	ЭЬЭЬЭЬЭЬШJJШ ЪЯЬЭЬШJЪЬЭЬЭЬЭЬЭЬЭЬШAЧЪ
ЯЬЭЬ	ЭЬЭЬЭЬШ>JЪ	ЬЭЬЭЬЭЬЭЬШ%JЪЭЬЭЬШЧЪ
ЯЬЭЬ	ЭЬЭЬЭЬШ?JЪЬ*ЭЬЭЬШ2JЪЭЬШЧJШ ЧJЩ$Щ/JЩ JЪЬЭЬЭЬ
ШЪЬ
ЭЬЭЬШJЪЬЭЬЭЬШJЪЬЭЬШЪЯЬЭЬШJЩMJЩЧJШЧJШ ЪЯЬЭЬЭЬЭЬШ7JЪЬШЧJШ JЪЯ	ЬЭЬЭЬШ)JШ ЪЯЬЭЬЭЬШ&JЩ:ЧJШ ЪЯЬЭЬШJЩ;ЧЧJШJШ Ч ЕЧ    ─  t  