en:docs:fapi:doserrclass

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en:docs:fapi:doserrclass [2021/08/20 04:41] – created prokusheven:docs:fapi:doserrclass [2021/11/04 13:55] (current) prokushev
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 +
 +====== DosErrClass ======
 + 
  
 This call helps OS/2 applications respond to error codes (return codes) received from OS/2. This call helps OS/2 applications respond to error codes (return codes) received from OS/2.
  
-==Syntax== +===== Syntax ===== 
- DosErrClass (Code, Class, Action, Locus)+<code c> 
 +DosErrClass (Code, Class, Action, Locus) 
 +</code>
  
-==Parameters== +===== Parameters =====
-;Code (USHORT) - input : Error code returned by an OS/2 function. +
-;Class (PUSHORT) - output : Address of the classification of an error. +
-;Action (PUSHORT) - output : Address of the action for an error. +
-;Locus (PUSHORT) - output : Address of the origin of an error.+
  
-==Return Code== +  * Code ([[USHORT]]) - input : Error code returned by an OS/2 function. 
-;rc (USHORT) - return:Return code descriptions are: +  * Class ([[PUSHORT]]) - output : Address of the classification of an error. 
-* 0 NO_ERROR+  * Action ([[PUSHORT]]) - output : Address of the action for an error. 
 +  * Locus ([[PUSHORT]]) - output : Address of the origin of an error. 
 + 
 +===== Return Code ===== 
 + 
 +rc ([[USHORT]]) - return:Return code descriptions are: 
 + 
 +  * 0 NO_ERROR 
 + 
 +===== Remarks =====
  
-==Remarks== 
 The input is a return code returned from another function call, and the output is a classification of the return and recommended action. Depending on the application, the recommended action could be followed, or a more specific application recovery could be performed. The input is a return code returned from another function call, and the output is a classification of the return and recommended action. Depending on the application, the recommended action could be followed, or a more specific application recovery could be performed.
  
 The following values are returned in Class, Action, and Locus: The following values are returned in Class, Action, and Locus:
-{|class="wikitable" 
-|+Class Definitions 
-!VALUE||MNEMONIC||DESCRIPTION 
-|- 
-|1||OUTRES||Out of resources 
-|- 
-|2||TEMPSIT||Temporary situation 
-|- 
-|3||AUTH||Authorization failed 
-|- 
-|4||INTRN||Internal error 
-|- 
-|5||HRDFAIL||Device hardware failure 
-|- 
-|6||SYSFAIL||System failure 
-|- 
-|7||APPERR||Probable application error 
-|- 
-|8||NOTFND||Item not located 
-|- 
-|9||BADFMT||Bad format for call/data 
-|- 
-|10||LOCKED||Resource/data locked 
-|- 
-|11||MEDIA||Incorrect media, CRC error 
-|- 
-|12||ALREADY||Resource/action already taken/done/exists 
-|- 
-|13||UNK||Unclassified 
-|- 
-|14||CANT||Can't perform requested action 
-|- 
-|15||TIME||Timeout 
-|} 
-{|class="wikitable" 
-|+Action Definitions 
-!VALUE||MNEMONIC||DESCRIPTION 
-|- 
-|1||RETRY||Retry immediately 
-|- 
-|2||DLYRET||Delay and retry 
-|- 
-|3||USER||Bad user input - get new values 
-|- 
-|4||ABORT||Terminate in an orderly manner 
-|- 
-|5||PANIC||Terminate immediately 
-|- 
-|6||IGNORE||Ignore error 
-|- 
-|7||INTRET||Retry after user intervention 
-|} 
-{|class="wikitable" 
-|+Locus Definitions 
-!VALUE||MNEMONIC||DESCRIPTION 
-|- 
-|1||UNK||Unknown 
-|- 
-|2||DISK||Random access device such as a disk 
-|- 
-|3||NET||Network 
-|- 
-|4||SERDEV||Serial device 
-|- 
-|5||MEM||Memory 
-|} 
  
-===Family API Considerations===+^ VALUE ^ MNEMONIC ^ DESCRIPTION ^ 
 +|1|OUTRES|Out of resources| 
 +|2|TEMPSIT|Temporary situation| 
 +|3|AUTH|Authorization failed| 
 +|4|INTRN|Internal error| 
 +|5|HRDFAIL|Device hardware failure| 
 +|6|SYSFAIL|System failure| 
 +|7|APPERR|Probable application error| 
 +|8|NOTFND|Item not located| 
 +|9|BADFMT|Bad format for call/data| 
 +|10|LOCKED|Resource/data locked| 
 +|11|MEDIA|Incorrect media, CRC error| 
 +|12|ALREADY|Resource/action already taken/done/exists| 
 +|13|UNK|Unclassified| 
 +|14|CANT|Can't perform requested action| 
 +|15|TIME|Timeout| 
 + 
 +^ VALUE ^ MNEMONIC ^ DESCRIPTION ^ 
 +|1|RETRY|Retry immediately| 
 +|2|DLYRET|Delay and retry| 
 +|3|USER|Bad user input - get new values| 
 +|4|ABORT|Terminate in an orderly manner| 
 +|5|PANIC|Terminate immediately| 
 +|6|IGNORE|Ignore error| 
 +|7|INTRET|Retry after user intervention| 
 + 
 +^VALUE^MNEMONIC^DESCRIPTION^ 
 +|1|UNK|Unknown| 
 +|2|DISK|Random access device such as a disk| 
 +|3|NET|Network| 
 +|4|SERDEV|Serial device| 
 +|5|MEM|Memory| 
 + 
 +==== Family API Considerations ===
 Some options operate differently in the DOS mode than in the OS/2 mode. Therefore, the following considerations apply to DosErrClass when coding for the DOS mode: Some options operate differently in the DOS mode than in the OS/2 mode. Therefore, the following considerations apply to DosErrClass when coding for the DOS mode:
  
 When DosErrClass is called by a family application, it returns a valid error classification for returns that have occurred. The classifications of a given return code may not be the same for the Family API and the OS/2 mode applications.  When DosErrClass is called by a family application, it returns a valid error classification for returns that have occurred. The classifications of a given return code may not be the same for the Family API and the OS/2 mode applications. 
  
-==Bindings== +===== Bindings ===== 
-===C=== + 
-<PRE>+==== C ===
 + 
 +<code c>
 #define INCL_DOSMISC #define INCL_DOSMISC
  
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 USHORT  rc;            /* return code */ USHORT  rc;            /* return code */
-</PRE>+</code>
  
-===MASM=== +==== MASM ===
-<PRE>+ 
 +<code asm>
 EXTRN  DosErrClass:FAR EXTRN  DosErrClass:FAR
 INCL_DOSMISC      EQU 1 INCL_DOSMISC      EQU 1
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 PUSH@  WORD    Locus     ;Error locus (returned) PUSH@  WORD    Locus     ;Error locus (returned)
 CALL   DosErrClass CALL   DosErrClass
 +
 +</code>
  
 Returns WORD Returns WORD
-</PRE> 
  
-==Example Code==+ 
 +===== Example Code ===== 
 This example attempts to delete a non-existent file. The error returned is then plugged into DosErrClass for more information about the error and what actions should be taken. This example attempts to delete a non-existent file. The error returned is then plugged into DosErrClass for more information about the error and what actions should be taken.
-<PRE>+<code c>
 #define INCL_DOSQUEUES #define INCL_DOSQUEUES
  
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                     &Action,       /* Recommended action */                     &Action,       /* Recommended action */
                     &Locus);       /* Error locus */                     &Locus);       /* Error locus */
-</PRE>+</code>
  
  
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