nsprpub/pr/src/misc/prerror.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
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  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is the Netscape Portable Runtime (NSPR).
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998-2000
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
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  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #include "primpl.h"
  39
  40 #include <string.h>
  41 #include <stdlib.h>
  42
  43 PR_IMPLEMENT(PRErrorCode) PR_GetError(void)
  44 {
  45     PRThread *thread = PR_GetCurrentThread();
  46     return thread->errorCode;
  47 }
  48
  49 PR_IMPLEMENT(PRInt32) PR_GetOSError(void)
  50 {
  51     PRThread *thread = PR_GetCurrentThread();
  52     return thread->osErrorCode;
  53 }
  54
  55 PR_IMPLEMENT(void) PR_SetError(PRErrorCode code, PRInt32 osErr)
  56 {
  57     PRThread *thread = PR_GetCurrentThread();
  58     thread->errorCode = code;
  59     thread->osErrorCode = osErr;
  60     thread->errorStringLength = 0;
  61 }
  62
  63 PR_IMPLEMENT(void) PR_SetErrorText(PRIntn textLength, const char *text)
  64 {
  65     PRThread *thread = PR_GetCurrentThread();
  66
  67     if (0 == textLength)
  68     {
  69             if (NULL != thread->errorString)
  70                 PR_DELETE(thread->errorString);
  71             thread->errorStringSize = 0;
  72     }
  73     else
  74     {
  75             PRIntn size = textLength + 31;  /* actual length to allocate. Plus a little extra */
  76         if (thread->errorStringSize < textLength+1)  /* do we have room? */
  77         {
  78                 if (NULL != thread->errorString)
  79                     PR_DELETE(thread->errorString);
  80                     thread->errorString = (char*)PR_MALLOC(size);
  81             if ( NULL == thread->errorString ) {
  82                 thread->errorStringSize = 0;
  83                 thread->errorStringLength = 0;
  84                 return;
  85             }
  86             thread->errorStringSize = size;
  87             }
  88         memcpy(thread->errorString, text, textLength+1 );
  89     }
  90     thread->errorStringLength = textLength;
  91 }
  92
  93 PR_IMPLEMENT(PRInt32) PR_GetErrorTextLength(void)
  94 {
  95     PRThread *thread = PR_GetCurrentThread();
  96     return thread->errorStringLength;
  97 }  /* PR_GetErrorTextLength */
  98
  99 PR_IMPLEMENT(PRInt32) PR_GetErrorText(char *text)
 100 {
 101     PRThread *thread = PR_GetCurrentThread();
 102     if (0 != thread->errorStringLength)
 103         memcpy(text, thread->errorString, thread->errorStringLength+1);
 104     return thread->errorStringLength;
 105 }  /* PR_GetErrorText */
 106
 107