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/*-
* Copyright (c) 2014-2020 MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#include "wt_internal.h"
/*
* __wt_getlasterror --
* Return GetLastError, or a relatively generic Windows error if the system error code isn't
* set.
*/
DWORD
__wt_getlasterror(void)
{
DWORD windows_error;
/*
* Check for ERROR_SUCCESS: It's easy to introduce a problem by calling the wrong error
* function, for example, this function when the MSVC function set the C runtime error value.
* Handle gracefully and always return an error.
*/
windows_error = GetLastError();
return (windows_error == ERROR_SUCCESS ? ERROR_INVALID_PARAMETER : windows_error);
}
/*
* __wt_map_windows_error --
* Map Windows errors to POSIX/ANSI errors.
*/
int
__wt_map_windows_error(DWORD windows_error)
{
static const struct {
int windows_error;
int posix_error;
} list[] = {
{ERROR_ACCESS_DENIED, EACCES}, {ERROR_ALREADY_EXISTS, EEXIST}, {ERROR_ARENA_TRASHED, EFAULT},
{ERROR_BAD_COMMAND, EFAULT}, {ERROR_BAD_ENVIRONMENT, EFAULT}, {ERROR_BAD_FORMAT, EFAULT},
{ERROR_BAD_NETPATH, ENOENT}, {ERROR_BAD_NET_NAME, ENOENT}, {ERROR_BAD_PATHNAME, ENOENT},
{ERROR_BROKEN_PIPE, EPIPE}, {ERROR_CANNOT_MAKE, EACCES}, {ERROR_CHILD_NOT_COMPLETE, ECHILD},
{ERROR_CURRENT_DIRECTORY, EACCES}, {ERROR_DIRECT_ACCESS_HANDLE, EBADF},
{ERROR_DIR_NOT_EMPTY, ENOTEMPTY}, {ERROR_DISK_FULL, ENOSPC}, {ERROR_DRIVE_LOCKED, EACCES},
{ERROR_FAIL_I24, EACCES}, {ERROR_FILENAME_EXCED_RANGE, ENOENT}, {ERROR_FILE_EXISTS, EEXIST},
{ERROR_FILE_NOT_FOUND, ENOENT}, {ERROR_GEN_FAILURE, EFAULT}, {ERROR_INVALID_ACCESS, EACCES},
{ERROR_INVALID_BLOCK, EFAULT}, {ERROR_INVALID_DATA, EFAULT}, {ERROR_INVALID_DRIVE, ENOENT},
{ERROR_INVALID_FUNCTION, EINVAL}, {ERROR_INVALID_HANDLE, EBADF},
{ERROR_INVALID_PARAMETER, EINVAL}, {ERROR_INVALID_TARGET_HANDLE, EBADF},
{ERROR_LOCK_FAILED, EBUSY}, {ERROR_LOCK_VIOLATION, EBUSY}, {ERROR_MAX_THRDS_REACHED, EAGAIN},
{ERROR_NEGATIVE_SEEK, EINVAL}, {ERROR_NESTING_NOT_ALLOWED, EAGAIN},
{ERROR_NETWORK_ACCESS_DENIED, EACCES}, {ERROR_NOT_ENOUGH_MEMORY, ENOMEM},
{ERROR_NOT_ENOUGH_QUOTA, ENOMEM}, {ERROR_NOT_LOCKED, EACCES}, {ERROR_NOT_READY, EBUSY},
{ERROR_NOT_SAME_DEVICE, EXDEV}, {ERROR_NO_DATA, EPIPE}, {ERROR_NO_MORE_FILES, EMFILE},
{ERROR_NO_PROC_SLOTS, EAGAIN}, {ERROR_PATH_NOT_FOUND, ENOENT}, {ERROR_READ_FAULT, EFAULT},
{ERROR_RETRY, EINTR}, {ERROR_SEEK_ON_DEVICE, EACCES}, {ERROR_SHARING_VIOLATION, EBUSY},
{ERROR_TOO_MANY_OPEN_FILES, EMFILE}, {ERROR_WAIT_NO_CHILDREN, ECHILD},
{ERROR_WRITE_FAULT, EFAULT}, {ERROR_WRITE_PROTECT, EACCES},
};
int i;
for (i = 0; i < WT_ELEMENTS(list); ++i)
if (windows_error == list[i].windows_error)
return (list[i].posix_error);
/* Untranslatable error, go generic. */
return (WT_ERROR);
}
/*
* __wt_formatmessage --
* Windows error formatting.
*/
const char *
__wt_formatmessage(WT_SESSION_IMPL *session, DWORD windows_error)
{
/*
* !!!
* This function MUST handle a NULL session handle.
*
* Grow the session error buffer as necessary.
*/
if (session != NULL && __wt_buf_initsize(session, &session->err, 512) == 0 &&
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
windows_error, 0, /* Let system choose the correct LANGID. */
session->err.mem, (DWORD)512, NULL) != 0)
return (session->err.data);
return ("Unable to format Windows error string");
}
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