nsprpub/pr/src/misc/prerror.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "primpl.h"
   7
   8 #include <string.h>
   9 #include <stdlib.h>
  10
  11 PR_IMPLEMENT(PRErrorCode) PR_GetError(void) {
  12   PRThread* thread = PR_GetCurrentThread();
  13   return thread->errorCode;
  14 }
  15
  16 PR_IMPLEMENT(PRInt32) PR_GetOSError(void) {
  17   PRThread* thread = PR_GetCurrentThread();
  18   return thread->osErrorCode;
  19 }
  20
  21 PR_IMPLEMENT(void) PR_SetError(PRErrorCode code, PRInt32 osErr) {
  22   PRThread* thread = PR_GetCurrentThread();
  23   thread->errorCode = code;
  24   thread->osErrorCode = osErr;
  25   thread->errorStringLength = 0;
  26 }
  27
  28 PR_IMPLEMENT(void) PR_SetErrorText(PRIntn textLength, const char* text) {
  29   PRThread* thread = PR_GetCurrentThread();
  30
  31   if (0 == textLength) {
  32     if (NULL != thread->errorString) {
  33       PR_DELETE(thread->errorString);
  34     }
  35     thread->errorStringSize = 0;
  36   } else {
  37     PRIntn size =
  38         textLength + 31; /* actual length to allocate. Plus a little extra */
  39     if (thread->errorStringSize < textLength + 1) /* do we have room? */
  40     {
  41       if (NULL != thread->errorString) {
  42         PR_DELETE(thread->errorString);
  43       }
  44       thread->errorString = (char*)PR_MALLOC(size);
  45       if (NULL == thread->errorString) {
  46         thread->errorStringSize = 0;
  47         thread->errorStringLength = 0;
  48         return;
  49       }
  50       thread->errorStringSize = size;
  51     }
  52     memcpy(thread->errorString, text, textLength + 1);
  53   }
  54   thread->errorStringLength = textLength;
  55 }
  56
  57 PR_IMPLEMENT(PRInt32) PR_GetErrorTextLength(void) {
  58   PRThread* thread = PR_GetCurrentThread();
  59   return thread->errorStringLength;
  60 } /* PR_GetErrorTextLength */
  61
  62 PR_IMPLEMENT(PRInt32) PR_GetErrorText(char* text) {
  63   PRThread* thread = PR_GetCurrentThread();
  64   if (0 != thread->errorStringLength) {
  65     memcpy(text, thread->errorString, thread->errorStringLength + 1);
  66   }
  67   return thread->errorStringLength;
  68 } /* PR_GetErrorText */