Delphi Rewrite Io Error 32
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Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Delphi multi-threading delphi i/o error 103 file write: I/O error 32 up vote 0 down vote favorite I created a class for writing thread-safe log in a text file using CriticalSection. I am not an expert of CriticalSection and multi-threading programming (...and Delphi), I'm definitely doing something wrong... unit ErrorLog; interface uses Winapi.Windows, System.SysUtils; type TErrorLog = class private FTextFile : TextFile; FLock : TRTLCriticalSection; public constructor Create(const aLogFilename:string); destructor Destroy; override; procedure Write(const ErrorText: string); end; implementation constructor TErrorLog.Create(const aLogFilename:string); begin inherited Create; InitializeCriticalSection(FLock); AssignFile(FTextFile, aLogFilename); if FileExists(aLogFilename) then Append(FTextFile) else Rewrite(FTextFile); end; destructor TErrorLog.Destroy; const fmTextOpenWrite = 55218; begin EnterCriticalSection(FLock); try if TTextRec(FTextFile).Mode <> fmTextOpenWrite then CloseFile(FTextFile); inherited Destroy; finally LeaveCriticalSection(FLock); DeleteCriticalSection(FLock); end; end; procedure TErrorLog.Write(const ErrorText: string); begin EnterCriticalSection(FLock); try WriteLn(FTextFile, ErrorText); finally LeaveCriticalSection(FLock); end; end; end. to test t
Rewrite(MyOutFile); Now it gives me an "I/O error 32" (with the file existing or not). What is error 32? Where does Delphi hide its error code deciphering? What could be wrong? exception einouterror in module file access denied Thanks Danny Schoemann Dan...@dorotree.com Team Delphi Developer Fri, 19 Apr 2002 03:00:00 GMT Re:What
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is I/O error 32? In message <7vkfh5$4...@forums.borland.com>, Danny Schoemann stated: Quote> Now it gives me an "I/O error 32" (with the file existing or not). > What is error 32? 32 is a standard Windows error code indicating a sharing violation. You'll find the Windows error codes declared in Windows.Pas in the form ERROR_... -- Regards Ralph (TeamB) -- Danny http://stackoverflow.com/questions/27202975/delphi-multi-threading-file-write-i-o-error-32 Schoeman Delphi Developer Sun, 21 Apr 2002 03:00:00 GMT Re:What is I/O error 32? Thanks Ralph. Your pointers helped us fix the problem. For the record, here's the story: After digging around the Windows.pas files and all other .pas files containing the word "sharing" I discovered that error code 32 is a generic code for any "undefined" I/O error. ( To quote commdlg.pas: "Note: Undefined return values map to OFN_SHAREWARN, but are reserved for future use.") http://www.delphigroups.info/2/a7/334575.html By stepping and guessing we traced it to a line in a previous function "RmDir(MyDirName)" that failed. Since we were not trapping IO errors with IOResult then all subsequent IO failed (as per help file - - "If an I/O error occurs and I/O-checking is off, all subsequent I/O operations are ignored until a call is made to IOResult. Calling IOResult clears the internal error flag".) Only RmDir causes this and not RemoveDir. So we are now using RemoveDir. Most of the time (all the time?) RemoveDir (and RmDir) fail. Not serious but peculiar. Thanks again - Danny Schoemann http://www.dorotree.com QuoteRalph Friedman (TeamB) wrote in message ... >In message <7vkfh5$4...@forums.borland.com>, Danny Schoemann stated: >> Now it gives me an "I/O error 32" (with the file existing or not). >> What is error 32? >32 is a standard Windows error code indicating a sharing violation. >You'll find the Windows error codes declared in Windows.Pas in the form >ERROR_... >-- >Regards >Ralph (TeamB) >-- Other Threads 1. 32 bit Pascal version & special O.S. 2. 32-bit Library with BP7 - Am I dreaming? 3. 16 bit vs 32 bit and rewrite and win32 api and I/O error 32 4. What OS am I in? 5. Error $2B, OS Error with TUtility.DLL (rebuilding) 6. Unknown internal error of OS (network error) 7. Delphi 32 - H
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