sys7.1-doc-wip/Interfaces/CIncludes/ErrMgr.h
2019-07-27 22:37:48 +08:00

133 lines
5.0 KiB
C

/************************************************************
Created: Thursday, September 7, 1989 at 9:13 PM
ErrMgr.h
C Interface to the Macintosh Libraries
<<< Error File Manager Routines Interface File >>>
Copyright Apple Computer, Inc. 1987-1991
All rights reserved
This file is used in these builds: ROM System
Change History (most recent first):
<3> 8/8/91 JL Update copyright
This file contains:
InitErrMgr(toolname, sysename, Nbrs) - ErrMgr initialization
CloseErrMgr() - Close ErrMgr message files
GetSysErrText(Nbr, Msg) - Get a system error message for a number
GetToolErrText(Nbr, Insert, Msg) - Get a tool error message for a number
AddErrInsert(insert, msgString) - Add an insert to a message
addInserts(msgString, insert,...) - Add a number of inserts to a message
************************************************************/
#ifndef __ERRMGR__
#define __ERRMGR__
#ifndef __TYPES__
#include <Types.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
extern void InitErrMgr(char *toolErrFilename,char *sysErrFilename,Boolean showToolErrNbrs);
/*
ErrMgr initialization.This must be done before using any other ErrMgr
routine. Set showToolErrNbrs to true if you want all tool messages to contain
the error number following the message text enclosed in parentheses (e.g.,
"<msg txt> ([OS] Error <n>)"; system error messages always contain the error
number). The toolErrFileName parameter is used to specify the name of a
tool-specific error file, and should be the NULL or a null string if not used
(or if the tool's data fork is to be used as the error file, see
GetToolErrText for futher details). The sysErrFileName parameter is used to
specify the name of a system error file, and should normally be the NULL or a
null string, which causes the ErrMgr to look in the MPW Shell directory for
"SysErrs.Err" (see GetSysErrText).
If InitErrMgr is NOT called prior to calling GetSysErrText or GetToolErrText,
then those routines, the first time they are called, will call InitErrMgr as
InitErrMgr(NULL, NULL, true).
The following global may be set to true to allow a C caller to process all
strings as Pascal strings:*/
extern Boolean pascalStrings; /* set to true for Pascal strings*//*
This should be set PRIOR to calling InitErrMgr. Once set, ALL strings, both
those passed to the ErrMgr as filenames and error message inserts, as well as
the messages returned by the ErrMgr will be Pascal strings. There is NO
guarantee a '\0' byte is at the end of the string. Results are unpredictable
if pascalStringsis set false after it has been set true!
*/
extern void CloseErrMgr(void);
/*
Ideally a CloseErrMgr should be done at the end of execution to make sure all
files opened by the ErrMgr are closed. You can let normal program termination
do the closing. But if you are a purist...
*/
extern char *GetSysErrText(short msgNbr,char *errMsg);
/*
Get the error message text corresponding to system error number errNbr from
the system error message file (whose name was specified in the InitErrMgr
call). The text of the message is returned in errMsg and the function returns
a pointer to errMsg. The maximum length of the message is limited to 254
characters.
Note, if a system message filename was not specified to InitErrMgr, then the
ErrMgr assumes the message file contained in the file "SysErrs.Err". This
file is first accessed as "{ShellDirectory}SysErrs.Err" on the assumption that
SysErrs.Err is kept in the same directory as the MPW Shell. If the file
cannot be opened, then an open is attempted on "SysErrs.Err" in the System
Folder.
*/
extern char *GetToolErrText(short msgNbr,char *errInsert,char *errMsg);
/*
Get the error message text corresponding to tool error number errNbr from
the tool error message file (whose name was specified in the InitErrMgr
call). The text of the message is returned in errMsg and the function returns
a pointer to errMsg. The maximum length of the message is limited to 254
characters. If the message is to have an insert, then ErrInsert should be a
pointer to it. Otherwise it should be either be a null string or a NULL
pointer.
Inserts are indicated in error messages by specifying a '^' to indicate where
the insert is to be placed.
Note, if a tool message filename was not specified to InitErrMgr, then the
ErrMgr assumes the message file contained in the data fork of the tool calling
the ErrMgr. This name is contained in the Shell variable {Command} and the
value of that variable is used to open the error message file.
*/
extern void AddErrInsert(unsigned char *insert,unsigned char *msgString);
/*
Add another insert to an error message string.This call is used when more
than one insert is to be added to a message (because it contains more than
one '^' character).
*/
extern unsigned char *addInserts(unsigned char *msgString,unsigned char *insert,
... );
/*
Add a set of inserts to an error message string. AddErrInsert is called for
each insert parameter specified.
*/
#ifdef __cplusplus
}
#endif
#endif