modules/cldc-compact/src/main/java/cc/squirreljme/jvm/SystemCallError.java

   1 // -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
   2 // ---------------------------------------------------------------------------
   3 // SquirrelJME
   4 //     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
   5 // ---------------------------------------------------------------------------
   6 // SquirrelJME is under the Mozilla Public License Version 2.0.
   7 // See license.mkd for licensing and copyright information.
   8 // ---------------------------------------------------------------------------
   9
  10 package cc.squirreljme.jvm;
  11
  12 /**
  13  * This interface contains the various error codes for all of the system calls.
  14  *
  15  * @since 2019/05/23
  16  */
  17 public final class SystemCallError
  18 {
  19         /** No error, or success. */
  20         public static final byte NO_ERROR =
  21                 0;
  22
  23         /** The system call is not supported. */
  24         public static final byte UNSUPPORTED_SYSTEM_CALL =
  25                 -1;
  26
  27         /** The pipe descriptor is not valid. */
  28         public static final byte PIPE_DESCRIPTOR_INVALID =
  29                 -2;
  30
  31         /** Write error when writing to the pipe. */
  32         public static final byte PIPE_DESCRIPTOR_BAD_WRITE =
  33                 -3;
  34
  35         /** Value out of range. */
  36         public static final byte VALUE_OUT_OF_RANGE =
  37                 -4;
  38
  39         /** No frame buffer exists. */
  40         public static final byte NO_FRAMEBUFFER =
  41                 -5;
  42
  43         /** Permission denied. */
  44         public static final byte PERMISSION_DENIED =
  45                 -6;
  46
  47         /** Interrupted. */
  48         public static final byte INTERRUPTED =
  49                 -7;
  50
  51         /** Unknown error. */
  52         public static final byte UNKNOWN =
  53                 -8;
  54
  55         /** End of file reached. */
  56         public static final byte END_OF_FILE =
  57                 -9;
  58
  59         /** Error with IPC Call. */
  60         public static final byte IPC_ERROR =
  61                 -10;
  62
  63         /** Unknown class. */
  64         public static final byte NO_SUCH_CLASS =
  65                 -11;
  66
  67         /** No such thread exists. */
  68         public static final byte NO_SUCH_THREAD =
  69                 -12;
  70
  71         /** Thread already has a context. */
  72         public static final byte THREAD_HAS_CONTEXT =
  73                 -13;
  74
  75         /** No such configuration key. */
  76         public static final byte NO_SUCH_CONFIG_KEY =
  77                 -14;
  78
  79         /** Invalid memory handle kind. */
  80         public static final byte INVALID_MEMHANDLE_KIND =
  81                 -15;
  82
  83         /** Could not flush the pipe. */
  84         public static final byte PIPE_DESCRIPTOR_BAD_FLUSH =
  85                 -16;
  86
  87         /**
  88          * Not used.
  89          *
  90          * @since 2019/05/23
  91          */
  92         private SystemCallError()
  93         {
  94         }
  95
  96         /**
  97          * Converts the error to a string.
  98          *
  99          * @param __err The input error.
 100          * @return The resulting string.
 101          * @since 2020/01/12
 102          */
 103         public static String toString(int __err)
 104         {
 105                 switch (__err)
 106                 {
 107                         case SystemCallError.NO_ERROR:
 108                                 return "NoError";
 109
 110                         case SystemCallError.UNSUPPORTED_SYSTEM_CALL:
 111                                 return "UnsupportedSystemCall";
 112
 113                         case SystemCallError.PIPE_DESCRIPTOR_INVALID:
 114                                 return "PDInvalid";
 115
 116                         case SystemCallError.PIPE_DESCRIPTOR_BAD_WRITE:
 117                                 return "PDBadWrite";
 118
 119                         case SystemCallError.VALUE_OUT_OF_RANGE:
 120                                 return "ValueOutOfRange";
 121
 122                         case SystemCallError.NO_FRAMEBUFFER:
 123                                 return "NoFramebuffer";
 124
 125                         case SystemCallError.PERMISSION_DENIED:
 126                                 return "PermissionDenied";
 127
 128                         case SystemCallError.INTERRUPTED:
 129                                 return "Interrupted";
 130
 131                         case SystemCallError.UNKNOWN:
 132                                 return "Unknown";
 133
 134                         case SystemCallError.END_OF_FILE:
 135                                 return "EndOfFile";
 136
 137                         case SystemCallError.IPC_ERROR:
 138                                 return "IPCError";
 139
 140                         case SystemCallError.NO_SUCH_CLASS:
 141                                 return "NoSuchClass";
 142
 143                         case SystemCallError.NO_SUCH_THREAD:
 144                                 return "NoSuchThread";
 145
 146                         case SystemCallError.THREAD_HAS_CONTEXT:
 147                                 return "ThreadHasContext";
 148
 149                         case SystemCallError.NO_SUCH_CONFIG_KEY:
 150                                 return "NoSuchConfigKey";
 151
 152                                 // Some Other ID?
 153                         default:
 154                                 return "ERROR" + __err;
 155                 }
 156         }
 157 }