mono/io-layer/error.c

   1 /*
   2  * error.c:  Error reporting
   3  *
   4  * Author:
   5  *      Dick Porter (dick@ximian.com)
   6  *
   7  * (C) 2002 Ximian, Inc.
   8  */
   9
  10 #include <config.h>
  11 #include <glib.h>
  12 #include <pthread.h>
  13 #include <string.h>
  14 #include <errno.h>
  15
  16 #include "mono/io-layer/wapi.h"
  17
  18 static pthread_key_t error_key;
  19 static mono_once_t error_key_once=MONO_ONCE_INIT;
  20
  21 static void error_init(void)
  22 {
  23         int ret;
  24
  25         ret = pthread_key_create(&error_key, NULL);
  26         g_assert (ret == 0);
  27 }
  28
  29 void _wapi_error_cleanup (void)
  30 {
  31         int ret;
  32
  33         ret = pthread_key_delete (error_key);
  34         g_assert (ret == 0);
  35 }
  36
  37 /**
  38  * GetLastError:
  39  *
  40  * Retrieves the last error that occurred in the calling thread.
  41  *
  42  * Return value: The error code for the last error that happened on
  43  * the calling thread.
  44  */
  45 guint32 GetLastError(void)
  46 {
  47         guint32 err;
  48         void *errptr;
  49
  50         mono_once(&error_key_once, error_init);
  51         errptr=pthread_getspecific(error_key);
  52         err=GPOINTER_TO_UINT(errptr);
  53
  54         return(err);
  55 }
  56
  57 /**
  58  * SetLastError:
  59  * @code: The error code.
  60  *
  61  * Sets the error code in the calling thread.
  62  */
  63 void SetLastError(guint32 code)
  64 {
  65         int ret;
  66
  67         /* Set the thread-local error code */
  68         mono_once(&error_key_once, error_init);
  69         ret = pthread_setspecific(error_key, GUINT_TO_POINTER(code));
  70         g_assert (ret == 0);
  71 }
  72
  73 guint32
  74 errno_to_WSA (guint32 code, const gchar *function_name)
  75 {
  76         gint result = -1;
  77         char *sys_error;
  78         gchar *msg;
  79
  80         switch (code) {
  81         case 0: result = ERROR_SUCCESS; break;
  82         case EACCES: result = WSAEACCES; break;
  83         case EADDRINUSE: result = WSAEADDRINUSE; break;
  84         case EAFNOSUPPORT: result = WSAEAFNOSUPPORT; break;
  85 #if EAGAIN != EWOULDBLOCK
  86         case EAGAIN: result = WSAEWOULDBLOCK; break;
  87 #endif
  88         case EALREADY: result = WSAEALREADY; break;
  89         case EBADF: result = WSAENOTSOCK; break;
  90         case ECONNABORTED: result = WSAENETDOWN; break;
  91         case ECONNREFUSED: result = WSAECONNREFUSED; break;
  92         case ECONNRESET: result = WSAECONNRESET; break;
  93         case EFAULT: result = WSAEFAULT; break;
  94         case EHOSTUNREACH: result = WSAEHOSTUNREACH; break;
  95         case EINPROGRESS: result = WSAEINPROGRESS; break;
  96         case EINTR: result = WSAEINTR; break;
  97         case EINVAL: result = WSAEINVAL; break;
  98         /*FIXME: case EIO: result = WSAE????; break; */
  99         case EISCONN: result = WSAEISCONN; break;
 100         /* FIXME: case ELOOP: result = WSA????; break; */
 101         case EMFILE: result = WSAEMFILE; break;
 102         case EMSGSIZE: result = WSAEMSGSIZE; break;
 103         /* FIXME: case ENAMETOOLONG: result = WSAEACCES; break; */
 104         case ENETUNREACH: result = WSAENETUNREACH; break;
 105         case ENOBUFS: result = WSAENOBUFS; break; /* not documented */
 106         /* case ENOENT: result = WSAE????; break; */
 107         case ENOMEM: result = WSAENOBUFS; break;
 108         case ENOPROTOOPT: result = WSAENOPROTOOPT; break;
 109 #ifdef ENOSR
 110         case ENOSR: result = WSAENETDOWN; break;
 111 #endif
 112         case ENOTCONN: result = WSAENOTCONN; break;
 113         /*FIXME: case ENOTDIR: result = WSAE????; break; */
 114         case ENOTSOCK: result = WSAENOTSOCK; break;
 115         case ENOTTY: result = WSAENOTSOCK; break;
 116         case EOPNOTSUPP: result = WSAEOPNOTSUPP; break;
 117         case EPERM: result = WSAEACCES; break;
 118         case EPIPE: result = WSAESHUTDOWN; break;
 119         case EPROTONOSUPPORT: result = WSAEPROTONOSUPPORT; break;
 120 #if ERESTARTSYS
 121         case ERESTARTSYS: result = WSAENETDOWN; break;
 122 #endif
 123         /*FIXME: case EROFS: result = WSAE????; break; */
 124         case ESOCKTNOSUPPORT: result = WSAESOCKTNOSUPPORT; break;
 125         case ETIMEDOUT: result = WSAETIMEDOUT; break;
 126         case EWOULDBLOCK: result = WSAEWOULDBLOCK; break;
 127         case EADDRNOTAVAIL: result = WSAEADDRNOTAVAIL; break;
 128         /* This might happen with unix sockets */
 129         case ENOENT: result = WSAECONNREFUSED; break;
 130         case EDESTADDRREQ: result = WSAEDESTADDRREQ; break;
 131         default:
 132                 sys_error = strerror (code);
 133                 msg = g_locale_to_utf8 (sys_error, strlen (sys_error), NULL, NULL, NULL);
 134                 if (function_name == NULL)
 135                         function_name = __func__;
 136
 137                 g_warning ("%s: Need to translate %d [%s] into winsock error",
 138                            function_name, code, msg);
 139
 140                 g_free (msg);
 141                 result = WSASYSCALLFAILURE;
 142         }
 143
 144         return result;
 145 }
 146
 147 gint
 148 _wapi_get_win32_file_error (gint err)
 149 {
 150         gint ret;
 151         /* mapping ideas borrowed from wine. they may need some work */
 152
 153         switch (err) {
 154         case EACCES: case EPERM: case EROFS:
 155                 ret = ERROR_ACCESS_DENIED;
 156                 break;
 157
 158         case EAGAIN:
 159                 ret = ERROR_SHARING_VIOLATION;
 160                 break;
 161
 162         case EBUSY:
 163                 ret = ERROR_LOCK_VIOLATION;
 164                 break;
 165
 166         case EEXIST:
 167                 ret = ERROR_FILE_EXISTS;
 168                 break;
 169
 170         case EINVAL: case ESPIPE:
 171                 ret = ERROR_SEEK;
 172                 break;
 173
 174         case EISDIR:
 175                 ret = ERROR_CANNOT_MAKE;
 176                 break;
 177
 178         case ENFILE: case EMFILE:
 179                 ret = ERROR_TOO_MANY_OPEN_FILES;
 180                 break;
 181
 182         case ENOENT: case ENOTDIR:
 183                 ret = ERROR_FILE_NOT_FOUND;
 184                 break;
 185
 186         case ENOSPC:
 187                 ret = ERROR_HANDLE_DISK_FULL;
 188                 break;
 189
 190         case ENOTEMPTY:
 191                 ret = ERROR_DIR_NOT_EMPTY;
 192                 break;
 193
 194         case ENOEXEC:
 195                 ret = ERROR_BAD_FORMAT;
 196                 break;
 197
 198         case ENAMETOOLONG:
 199                 ret = ERROR_FILENAME_EXCED_RANGE;
 200                 break;
 201
 202         case EINPROGRESS:
 203                 ret = ERROR_IO_PENDING;
 204                 break;
 205
 206         case ENOSYS:
 207                 ret = ERROR_NOT_SUPPORTED;
 208                 break;
 209
 210         case EBADF:
 211                 ret = ERROR_INVALID_HANDLE;
 212                 break;
 213
 214         case EIO:
 215                 ret = ERROR_INVALID_HANDLE;
 216                 break;
 217
 218         case EINTR:
 219                 ret = ERROR_IO_PENDING;         /* best match I could find */
 220                 break;
 221
 222         case EPIPE:
 223                 ret = ERROR_WRITE_FAULT;
 224                 break;
 225
 226         default:
 227                 g_message ("Unknown errno: %s\n", g_strerror (err));
 228                 ret = ERROR_GEN_FAILURE;
 229                 break;
 230         }
 231
 232         return ret;
 233 }
 234