--- a/misc/libphysfs/platform_windows.c Thu Oct 11 23:43:31 2018 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,926 +0,0 @@
-/*
- * Windows support routines for PhysicsFS.
- *
- * Please see the file LICENSE.txt in the source's root directory.
- *
- * This file written by Ryan C. Gordon, and made sane by Gregory S. Read.
- */
-
-#define __PHYSICSFS_INTERNAL__
-#include "physfs_platforms.h"
-
-#ifdef PHYSFS_PLATFORM_WINDOWS
-#ifndef PHYSFS_PLATFORM_WINRT
-
-/* Forcibly disable UNICODE macro, since we manage this ourselves. */
-#ifdef UNICODE
-#undef UNICODE
-#endif
-
-#define WIN32_LEAN_AND_MEAN 1
-#include <windows.h>
-#include <userenv.h>
-#include <shlobj.h>
-#include <dbt.h>
-#include <errno.h>
-#include <ctype.h>
-#include <time.h>
-
-#include "physfs_internal.h"
-
-#define LOWORDER_UINT64(pos) ((PHYSFS_uint32) (pos & 0xFFFFFFFF))
-#define HIGHORDER_UINT64(pos) ((PHYSFS_uint32) ((pos >> 32) & 0xFFFFFFFF))
-
-/*
- * Users without the platform SDK don't have this defined. The original docs
- * for SetFilePointer() just said to compare with 0xFFFFFFFF, so this should
- * work as desired.
- */
-#define PHYSFS_INVALID_SET_FILE_POINTER 0xFFFFFFFF
-
-/* just in case... */
-#define PHYSFS_INVALID_FILE_ATTRIBUTES 0xFFFFFFFF
-
-/* Not defined before the Vista SDK. */
-#define PHYSFS_IO_REPARSE_TAG_SYMLINK 0xA000000C
-
-
-#define UTF8_TO_UNICODE_STACK_MACRO(w_assignto, str) { \
- if (str == NULL) \
- w_assignto = NULL; \
- else { \
- const PHYSFS_uint64 len = (PHYSFS_uint64) ((strlen(str) + 1) * 2); \
- w_assignto = (WCHAR *) __PHYSFS_smallAlloc(len); \
- if (w_assignto != NULL) \
- PHYSFS_utf8ToUtf16(str, (PHYSFS_uint16 *) w_assignto, len); \
- } \
-} \
-
-/* Note this counts WCHARs, not codepoints! */
-static PHYSFS_uint64 wStrLen(const WCHAR *wstr)
-{
- PHYSFS_uint64 len = 0;
- while (*(wstr++))
- len++;
- return len;
-} /* wStrLen */
-
-static char *unicodeToUtf8Heap(const WCHAR *w_str)
-{
- char *retval = NULL;
- if (w_str != NULL)
- {
- void *ptr = NULL;
- const PHYSFS_uint64 len = (wStrLen(w_str) * 4) + 1;
- retval = allocator.Malloc(len);
- BAIL_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- PHYSFS_utf8FromUtf16((const PHYSFS_uint16 *) w_str, retval, len);
- ptr = allocator.Realloc(retval, strlen(retval) + 1); /* shrink. */
- if (ptr != NULL)
- retval = (char *) ptr;
- } /* if */
- return retval;
-} /* unicodeToUtf8Heap */
-
-/* !!! FIXME: do we really need readonly? If not, do we need this struct? */
-typedef struct
-{
- HANDLE handle;
- int readonly;
-} WinApiFile;
-
-static HANDLE detectCDThreadHandle = NULL;
-static HWND detectCDHwnd = 0;
-static volatile int initialDiscDetectionComplete = 0;
-static volatile DWORD drivesWithMediaBitmap = 0;
-
-
-static PHYSFS_ErrorCode errcodeFromWinApiError(const DWORD err)
-{
- /*
- * win32 error codes are sort of a tricky thing; Microsoft intentionally
- * doesn't list which ones a given API might trigger, there are several
- * with overlapping and unclear meanings...and there's 16 thousand of
- * them in Windows 7. It looks like the ones we care about are in the
- * first 500, but I can't say this list is perfect; we might miss
- * important values or misinterpret others.
- *
- * Don't treat this list as anything other than a work in progress.
- */
- switch (err)
- {
- case ERROR_SUCCESS: return PHYSFS_ERR_OK;
- case ERROR_ACCESS_DENIED: return PHYSFS_ERR_PERMISSION;
- case ERROR_NETWORK_ACCESS_DENIED: return PHYSFS_ERR_PERMISSION;
- case ERROR_NOT_READY: return PHYSFS_ERR_IO;
- case ERROR_CRC: return PHYSFS_ERR_IO;
- case ERROR_SEEK: return PHYSFS_ERR_IO;
- case ERROR_SECTOR_NOT_FOUND: return PHYSFS_ERR_IO;
- case ERROR_NOT_DOS_DISK: return PHYSFS_ERR_IO;
- case ERROR_WRITE_FAULT: return PHYSFS_ERR_IO;
- case ERROR_READ_FAULT: return PHYSFS_ERR_IO;
- case ERROR_DEV_NOT_EXIST: return PHYSFS_ERR_IO;
- /* !!! FIXME: ?? case ELOOP: return PHYSFS_ERR_SYMLINK_LOOP; */
- case ERROR_BUFFER_OVERFLOW: return PHYSFS_ERR_BAD_FILENAME;
- case ERROR_INVALID_NAME: return PHYSFS_ERR_BAD_FILENAME;
- case ERROR_BAD_PATHNAME: return PHYSFS_ERR_BAD_FILENAME;
- case ERROR_DIRECTORY: return PHYSFS_ERR_BAD_FILENAME;
- case ERROR_FILE_NOT_FOUND: return PHYSFS_ERR_NOT_FOUND;
- case ERROR_PATH_NOT_FOUND: return PHYSFS_ERR_NOT_FOUND;
- case ERROR_DELETE_PENDING: return PHYSFS_ERR_NOT_FOUND;
- case ERROR_INVALID_DRIVE: return PHYSFS_ERR_NOT_FOUND;
- case ERROR_HANDLE_DISK_FULL: return PHYSFS_ERR_NO_SPACE;
- case ERROR_DISK_FULL: return PHYSFS_ERR_NO_SPACE;
- /* !!! FIXME: ?? case ENOTDIR: return PHYSFS_ERR_NOT_FOUND; */
- /* !!! FIXME: ?? case EISDIR: return PHYSFS_ERR_NOT_A_FILE; */
- case ERROR_WRITE_PROTECT: return PHYSFS_ERR_READ_ONLY;
- case ERROR_LOCK_VIOLATION: return PHYSFS_ERR_BUSY;
- case ERROR_SHARING_VIOLATION: return PHYSFS_ERR_BUSY;
- case ERROR_CURRENT_DIRECTORY: return PHYSFS_ERR_BUSY;
- case ERROR_DRIVE_LOCKED: return PHYSFS_ERR_BUSY;
- case ERROR_PATH_BUSY: return PHYSFS_ERR_BUSY;
- case ERROR_BUSY: return PHYSFS_ERR_BUSY;
- case ERROR_NOT_ENOUGH_MEMORY: return PHYSFS_ERR_OUT_OF_MEMORY;
- case ERROR_OUTOFMEMORY: return PHYSFS_ERR_OUT_OF_MEMORY;
- case ERROR_DIR_NOT_EMPTY: return PHYSFS_ERR_DIR_NOT_EMPTY;
- default: return PHYSFS_ERR_OS_ERROR;
- } /* switch */
-} /* errcodeFromWinApiError */
-
-static inline PHYSFS_ErrorCode errcodeFromWinApi(void)
-{
- return errcodeFromWinApiError(GetLastError());
-} /* errcodeFromWinApi */
-
-
-typedef BOOL (WINAPI *fnSTEM)(DWORD, LPDWORD b);
-
-static DWORD pollDiscDrives(void)
-{
- /* Try to use SetThreadErrorMode(), which showed up in Windows 7. */
- HANDLE lib = LoadLibraryA("kernel32.dll");
- fnSTEM stem = NULL;
- char drive[4] = { 'x', ':', '\\', '\0' };
- DWORD oldErrorMode = 0;
- DWORD drives = 0;
- DWORD i;
-
- if (lib)
- stem = (fnSTEM) GetProcAddress(lib, "SetThreadErrorMode");
-
- if (stem)
- stem(SEM_FAILCRITICALERRORS, &oldErrorMode);
- else
- oldErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS);
-
- /* Do detection. This may block if a disc is spinning up. */
- for (i = 'A'; i <= 'Z'; i++)
- {
- DWORD tmp = 0;
- drive[0] = (char) i;
- if (GetDriveTypeA(drive) != DRIVE_CDROM)
- continue;
-
- /* If this function succeeds, there's media in the drive */
- if (GetVolumeInformationA(drive, NULL, 0, NULL, NULL, &tmp, NULL, 0))
- drives |= (1 << (i - 'A'));
- } /* for */
-
- if (stem)
- stem(oldErrorMode, NULL);
- else
- SetErrorMode(oldErrorMode);
-
- if (lib)
- FreeLibrary(lib);
-
- return drives;
-} /* pollDiscDrives */
-
-
-static LRESULT CALLBACK detectCDWndProc(HWND hwnd, UINT msg,
- WPARAM wp, LPARAM lparam)
-{
- PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR) lparam;
- PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME) lparam;
- const int removed = (wp == DBT_DEVICEREMOVECOMPLETE);
-
- if (msg == WM_DESTROY)
- return 0;
- else if ((msg != WM_DEVICECHANGE) ||
- ((wp != DBT_DEVICEARRIVAL) && (wp != DBT_DEVICEREMOVECOMPLETE)) ||
- (lpdb->dbch_devicetype != DBT_DEVTYP_VOLUME) ||
- ((lpdbv->dbcv_flags & DBTF_MEDIA) == 0))
- {
- return DefWindowProcW(hwnd, msg, wp, lparam);
- } /* else if */
-
- if (removed)
- drivesWithMediaBitmap &= ~lpdbv->dbcv_unitmask;
- else
- drivesWithMediaBitmap |= lpdbv->dbcv_unitmask;
-
- return TRUE;
-} /* detectCDWndProc */
-
-
-static DWORD WINAPI detectCDThread(LPVOID lpParameter)
-{
- const char *classname = "PhysicsFSDetectCDCatcher";
- const char *winname = "PhysicsFSDetectCDMsgWindow";
- HINSTANCE hInstance = GetModuleHandleW(NULL);
- ATOM class_atom = 0;
- WNDCLASSEXA wce;
- MSG msg;
-
- memset(&wce, '\0', sizeof (wce));
- wce.cbSize = sizeof (wce);
- wce.lpfnWndProc = detectCDWndProc;
- wce.lpszClassName = classname;
- wce.hInstance = hInstance;
- class_atom = RegisterClassExA(&wce);
- if (class_atom == 0)
- {
- initialDiscDetectionComplete = 1; /* let main thread go on. */
- return 0;
- } /* if */
-
- detectCDHwnd = CreateWindowExA(0, classname, winname, WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
- CW_USEDEFAULT, HWND_DESKTOP, NULL, hInstance, NULL);
-
- if (detectCDHwnd == NULL)
- {
- initialDiscDetectionComplete = 1; /* let main thread go on. */
- UnregisterClassA(classname, hInstance);
- return 0;
- } /* if */
-
- /* We'll get events when discs come and go from now on. */
-
- /* Do initial detection, possibly blocking awhile... */
- drivesWithMediaBitmap = pollDiscDrives();
- initialDiscDetectionComplete = 1; /* let main thread go on. */
-
- do
- {
- const BOOL rc = GetMessageW(&msg, detectCDHwnd, 0, 0);
- if ((rc == 0) || (rc == -1))
- break; /* don't care if WM_QUIT or error break this loop. */
- TranslateMessage(&msg);
- DispatchMessageW(&msg);
- } while (1);
-
- /* we've been asked to quit. */
- DestroyWindow(detectCDHwnd);
-
- do
- {
- const BOOL rc = GetMessage(&msg, detectCDHwnd, 0, 0);
- if ((rc == 0) || (rc == -1))
- break;
- TranslateMessage(&msg);
- DispatchMessageW(&msg);
- } while (1);
-
- UnregisterClassA(classname, hInstance);
-
- return 0;
-} /* detectCDThread */
-
-
-void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
-{
- char drive_str[4] = { 'x', ':', '\\', '\0' };
- DWORD drives = 0;
- DWORD i;
-
- /*
- * If you poll a drive while a user is inserting a disc, the OS will
- * block this thread until the drive has spun up. So we swallow the risk
- * once for initial detection, and spin a thread that will get device
- * events thereafter, for apps that use this interface to poll for
- * disc insertion.
- */
- if (!detectCDThreadHandle)
- {
- initialDiscDetectionComplete = 0;
- detectCDThreadHandle = CreateThread(NULL,0,detectCDThread,NULL,0,NULL);
- if (detectCDThreadHandle == NULL)
- return; /* oh well. */
-
- while (!initialDiscDetectionComplete)
- Sleep(50);
- } /* if */
-
- drives = drivesWithMediaBitmap; /* whatever the thread has seen, we take. */
- for (i = 'A'; i <= 'Z'; i++)
- {
- if (drives & (1 << (i - 'A')))
- {
- drive_str[0] = (char) i;
- cb(data, drive_str);
- } /* if */
- } /* for */
-} /* __PHYSFS_platformDetectAvailableCDs */
-
-
-char *__PHYSFS_platformCalcBaseDir(const char *argv0)
-{
- DWORD buflen = 64;
- LPWSTR modpath = NULL;
- char *retval = NULL;
-
- while (1)
- {
- DWORD rc;
- void *ptr;
-
- if ( (ptr = allocator.Realloc(modpath, buflen*sizeof(WCHAR))) == NULL )
- {
- allocator.Free(modpath);
- BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- } /* if */
- modpath = (LPWSTR) ptr;
-
- rc = GetModuleFileNameW(NULL, modpath, buflen);
- if (rc == 0)
- {
- allocator.Free(modpath);
- BAIL_MACRO(errcodeFromWinApi(), NULL);
- } /* if */
-
- if (rc < buflen)
- {
- buflen = rc;
- break;
- } /* if */
-
- buflen *= 2;
- } /* while */
-
- if (buflen > 0) /* just in case... */
- {
- WCHAR *ptr = (modpath + buflen) - 1;
- while (ptr != modpath)
- {
- if (*ptr == '\\')
- break;
- ptr--;
- } /* while */
-
- if ((ptr == modpath) && (*ptr != '\\'))
- PHYSFS_setErrorCode(PHYSFS_ERR_OTHER_ERROR); /* oh well. */
- else
- {
- *(ptr+1) = '\0'; /* chop off filename. */
- retval = unicodeToUtf8Heap(modpath);
- } /* else */
- } /* else */
- allocator.Free(modpath);
-
- return retval; /* w00t. */
-} /* __PHYSFS_platformCalcBaseDir */
-
-
-char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
-{
- /*
- * Vista and later has a new API for this, but SHGetFolderPath works there,
- * and apparently just wraps the new API. This is the new way to do it:
- *
- * SHGetKnownFolderPath(FOLDERID_RoamingAppData, KF_FLAG_CREATE,
- * NULL, &wszPath);
- */
-
- WCHAR path[MAX_PATH];
- char *utf8 = NULL;
- size_t len = 0;
- char *retval = NULL;
-
- if (!SUCCEEDED(SHGetFolderPathW(NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
- NULL, 0, path)))
- BAIL_MACRO(PHYSFS_ERR_OS_ERROR, NULL);
-
- utf8 = unicodeToUtf8Heap(path);
- BAIL_IF_MACRO(!utf8, ERRPASS, NULL);
- len = strlen(utf8) + strlen(org) + strlen(app) + 4;
- retval = allocator.Malloc(len);
- if (!retval)
- {
- allocator.Free(utf8);
- BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- } /* if */
-
- sprintf(retval, "%s\\%s\\%s\\", utf8, org, app);
- allocator.Free(utf8);
- return retval;
-} /* __PHYSFS_platformCalcPrefDir */
-
-
-char *__PHYSFS_platformCalcUserDir(void)
-{
- typedef BOOL (WINAPI *fnGetUserProfDirW)(HANDLE, LPWSTR, LPDWORD);
- fnGetUserProfDirW pGetDir = NULL;
- HANDLE lib = NULL;
- HANDLE accessToken = NULL; /* Security handle to process */
- char *retval = NULL;
-
- lib = LoadLibraryA("userenv.dll");
- BAIL_IF_MACRO(!lib, errcodeFromWinApi(), NULL);
- pGetDir=(fnGetUserProfDirW) GetProcAddress(lib,"GetUserProfileDirectoryW");
- GOTO_IF_MACRO(!pGetDir, errcodeFromWinApi(), done);
-
- if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &accessToken))
- GOTO_MACRO(errcodeFromWinApi(), done);
- else
- {
- DWORD psize = 1;
- WCHAR dummy = 0;
- LPWSTR wstr = NULL;
- BOOL rc = 0;
-
- /*
- * Should fail. Will write the size of the profile path in
- * psize. Also note that the second parameter can't be
- * NULL or the function fails.
- */
- rc = pGetDir(accessToken, &dummy, &psize);
- assert(!rc); /* !!! FIXME: handle this gracefully. */
- (void) rc;
-
- /* Allocate memory for the profile directory */
- wstr = (LPWSTR) __PHYSFS_smallAlloc((psize + 1) * sizeof (WCHAR));
- if (wstr != NULL)
- {
- if (pGetDir(accessToken, wstr, &psize))
- {
- /* Make sure it ends in a dirsep. We allocated +1 for this. */
- if (wstr[psize - 2] != '\\')
- {
- wstr[psize - 1] = '\\';
- wstr[psize - 0] = '\0';
- } /* if */
- retval = unicodeToUtf8Heap(wstr);
- } /* if */
- __PHYSFS_smallFree(wstr);
- } /* if */
-
- CloseHandle(accessToken);
- } /* if */
-
-done:
- FreeLibrary(lib);
- return retval; /* We made it: hit the showers. */
-} /* __PHYSFS_platformCalcUserDir */
-
-
-void *__PHYSFS_platformGetThreadID(void)
-{
- return ( (void *) ((size_t) GetCurrentThreadId()) );
-} /* __PHYSFS_platformGetThreadID */
-
-void __PHYSFS_platformEnumerateFiles(const char *dirname,
- PHYSFS_EnumFilesCallback callback,
- const char *origdir,
- void *callbackdata)
-{
- HANDLE dir = INVALID_HANDLE_VALUE;
- WIN32_FIND_DATAW entw;
- size_t len = strlen(dirname);
- char *searchPath = NULL;
- WCHAR *wSearchPath = NULL;
-
- /* Allocate a new string for path, maybe '\\', "*", and NULL terminator */
- searchPath = (char *) __PHYSFS_smallAlloc(len + 3);
- if (searchPath == NULL)
- return;
-
- /* Copy current dirname */
- strcpy(searchPath, dirname);
-
- /* if there's no '\\' at the end of the path, stick one in there. */
- if (searchPath[len - 1] != '\\')
- {
- searchPath[len++] = '\\';
- searchPath[len] = '\0';
- } /* if */
-
- /* Append the "*" to the end of the string */
- strcat(searchPath, "*");
-
- UTF8_TO_UNICODE_STACK_MACRO(wSearchPath, searchPath);
- if (!wSearchPath)
- return; /* oh well. */
-
- dir = FindFirstFileW(wSearchPath, &entw);
-
- __PHYSFS_smallFree(wSearchPath);
- __PHYSFS_smallFree(searchPath);
- if (dir == INVALID_HANDLE_VALUE)
- return;
-
- do
- {
- const WCHAR *fn = entw.cFileName;
- char *utf8;
-
- if ((fn[0] == '.') && (fn[1] == '\0'))
- continue;
- if ((fn[0] == '.') && (fn[1] == '.') && (fn[2] == '\0'))
- continue;
-
- utf8 = unicodeToUtf8Heap(fn);
- if (utf8 != NULL)
- {
- callback(callbackdata, origdir, utf8);
- allocator.Free(utf8);
- } /* if */
- } while (FindNextFileW(dir, &entw) != 0);
-
- FindClose(dir);
-} /* __PHYSFS_platformEnumerateFiles */
-
-
-int __PHYSFS_platformMkDir(const char *path)
-{
- WCHAR *wpath;
- DWORD rc;
- UTF8_TO_UNICODE_STACK_MACRO(wpath, path);
- rc = CreateDirectoryW(wpath, NULL);
- __PHYSFS_smallFree(wpath);
- BAIL_IF_MACRO(rc == 0, errcodeFromWinApi(), 0);
- return 1;
-} /* __PHYSFS_platformMkDir */
-
-
-int __PHYSFS_platformInit(void)
-{
- return 1; /* It's all good */
-} /* __PHYSFS_platformInit */
-
-
-int __PHYSFS_platformDeinit(void)
-{
- if (detectCDThreadHandle)
- {
- if (detectCDHwnd)
- PostMessageW(detectCDHwnd, WM_QUIT, 0, 0);
- CloseHandle(detectCDThreadHandle);
- detectCDThreadHandle = NULL;
- initialDiscDetectionComplete = 0;
- drivesWithMediaBitmap = 0;
- } /* if */
-
- return 1; /* It's all good */
-} /* __PHYSFS_platformDeinit */
-
-
-static void *doOpen(const char *fname, DWORD mode, DWORD creation, int rdonly)
-{
- HANDLE fileh;
- WinApiFile *retval;
- WCHAR *wfname;
-
- UTF8_TO_UNICODE_STACK_MACRO(wfname, fname);
- BAIL_IF_MACRO(!wfname, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- fileh = CreateFileW(wfname, mode, FILE_SHARE_READ | FILE_SHARE_WRITE,
- NULL, creation, FILE_ATTRIBUTE_NORMAL, NULL);
- __PHYSFS_smallFree(wfname);
-
- BAIL_IF_MACRO(fileh == INVALID_HANDLE_VALUE,errcodeFromWinApi(), NULL);
-
- retval = (WinApiFile *) allocator.Malloc(sizeof (WinApiFile));
- if (!retval)
- {
- CloseHandle(fileh);
- BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- } /* if */
-
- retval->readonly = rdonly;
- retval->handle = fileh;
- return retval;
-} /* doOpen */
-
-
-void *__PHYSFS_platformOpenRead(const char *filename)
-{
- return doOpen(filename, GENERIC_READ, OPEN_EXISTING, 1);
-} /* __PHYSFS_platformOpenRead */
-
-
-void *__PHYSFS_platformOpenWrite(const char *filename)
-{
- return doOpen(filename, GENERIC_WRITE, CREATE_ALWAYS, 0);
-} /* __PHYSFS_platformOpenWrite */
-
-
-void *__PHYSFS_platformOpenAppend(const char *filename)
-{
- void *retval = doOpen(filename, GENERIC_WRITE, OPEN_ALWAYS, 0);
- if (retval != NULL)
- {
- HANDLE h = ((WinApiFile *) retval)->handle;
- DWORD rc = SetFilePointer(h, 0, NULL, FILE_END);
- if (rc == PHYSFS_INVALID_SET_FILE_POINTER)
- {
- const PHYSFS_ErrorCode err = errcodeFromWinApi();
- CloseHandle(h);
- allocator.Free(retval);
- BAIL_MACRO(err, NULL);
- } /* if */
- } /* if */
-
- return retval;
-} /* __PHYSFS_platformOpenAppend */
-
-
-PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buf, PHYSFS_uint64 len)
-{
- HANDLE Handle = ((WinApiFile *) opaque)->handle;
- PHYSFS_sint64 totalRead = 0;
-
- if (!__PHYSFS_ui64FitsAddressSpace(len))
- BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
-
- while (len > 0)
- {
- const DWORD thislen = (len > 0xFFFFFFFF) ? 0xFFFFFFFF : (DWORD) len;
- DWORD numRead = 0;
- if (!ReadFile(Handle, buf, thislen, &numRead, NULL))
- BAIL_MACRO(errcodeFromWinApi(), -1);
- len -= (PHYSFS_uint64) numRead;
- totalRead += (PHYSFS_sint64) numRead;
- if (numRead != thislen)
- break;
- } /* while */
-
- return totalRead;
-} /* __PHYSFS_platformRead */
-
-
-PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
- PHYSFS_uint64 len)
-{
- HANDLE Handle = ((WinApiFile *) opaque)->handle;
- PHYSFS_sint64 totalWritten = 0;
-
- if (!__PHYSFS_ui64FitsAddressSpace(len))
- BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
-
- while (len > 0)
- {
- const DWORD thislen = (len > 0xFFFFFFFF) ? 0xFFFFFFFF : (DWORD) len;
- DWORD numWritten = 0;
- if (!WriteFile(Handle, buffer, thislen, &numWritten, NULL))
- BAIL_MACRO(errcodeFromWinApi(), -1);
- len -= (PHYSFS_uint64) numWritten;
- totalWritten += (PHYSFS_sint64) numWritten;
- if (numWritten != thislen)
- break;
- } /* while */
-
- return totalWritten;
-} /* __PHYSFS_platformWrite */
-
-
-int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
-{
- HANDLE Handle = ((WinApiFile *) opaque)->handle;
- LONG HighOrderPos;
- PLONG pHighOrderPos;
- DWORD rc;
-
- /* Get the high order 32-bits of the position */
- HighOrderPos = HIGHORDER_UINT64(pos);
-
- /*
- * MSDN: "If you do not need the high-order 32 bits, this
- * pointer must be set to NULL."
- */
- pHighOrderPos = (HighOrderPos) ? &HighOrderPos : NULL;
-
- /* Move pointer "pos" count from start of file */
- rc = SetFilePointer(Handle, LOWORDER_UINT64(pos),
- pHighOrderPos, FILE_BEGIN);
-
- if ( (rc == PHYSFS_INVALID_SET_FILE_POINTER) &&
- (GetLastError() != NO_ERROR) )
- {
- BAIL_MACRO(errcodeFromWinApi(), 0);
- } /* if */
-
- return 1; /* No error occured */
-} /* __PHYSFS_platformSeek */
-
-
-PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
-{
- HANDLE Handle = ((WinApiFile *) opaque)->handle;
- LONG HighPos = 0;
- DWORD LowPos;
- PHYSFS_sint64 retval;
-
- /* Get current position */
- LowPos = SetFilePointer(Handle, 0, &HighPos, FILE_CURRENT);
- if ( (LowPos == PHYSFS_INVALID_SET_FILE_POINTER) &&
- (GetLastError() != NO_ERROR) )
- {
- BAIL_MACRO(errcodeFromWinApi(), -1);
- } /* if */
- else
- {
- /* Combine the high/low order to create the 64-bit position value */
- retval = (((PHYSFS_uint64) HighPos) << 32) | LowPos;
- assert(retval >= 0);
- } /* else */
-
- return retval;
-} /* __PHYSFS_platformTell */
-
-
-PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
-{
- HANDLE Handle = ((WinApiFile *) opaque)->handle;
- DWORD SizeHigh;
- DWORD SizeLow;
- PHYSFS_sint64 retval;
-
- SizeLow = GetFileSize(Handle, &SizeHigh);
- if ( (SizeLow == PHYSFS_INVALID_SET_FILE_POINTER) &&
- (GetLastError() != NO_ERROR) )
- {
- BAIL_MACRO(errcodeFromWinApi(), -1);
- } /* if */
- else
- {
- /* Combine the high/low order to create the 64-bit position value */
- retval = (((PHYSFS_uint64) SizeHigh) << 32) | SizeLow;
- assert(retval >= 0);
- } /* else */
-
- return retval;
-} /* __PHYSFS_platformFileLength */
-
-
-int __PHYSFS_platformFlush(void *opaque)
-{
- WinApiFile *fh = ((WinApiFile *) opaque);
- if (!fh->readonly)
- BAIL_IF_MACRO(!FlushFileBuffers(fh->handle), errcodeFromWinApi(), 0);
-
- return 1;
-} /* __PHYSFS_platformFlush */
-
-
-void __PHYSFS_platformClose(void *opaque)
-{
- HANDLE Handle = ((WinApiFile *) opaque)->handle;
- (void) CloseHandle(Handle); /* ignore errors. You should have flushed! */
- allocator.Free(opaque);
-} /* __PHYSFS_platformClose */
-
-
-static int doPlatformDelete(LPWSTR wpath)
-{
- const int isdir = (GetFileAttributesW(wpath) & FILE_ATTRIBUTE_DIRECTORY);
- const BOOL rc = (isdir) ? RemoveDirectoryW(wpath) : DeleteFileW(wpath);
- BAIL_IF_MACRO(!rc, errcodeFromWinApi(), 0);
- return 1; /* if you made it here, it worked. */
-} /* doPlatformDelete */
-
-
-int __PHYSFS_platformDelete(const char *path)
-{
- int retval = 0;
- LPWSTR wpath = NULL;
- UTF8_TO_UNICODE_STACK_MACRO(wpath, path);
- BAIL_IF_MACRO(!wpath, PHYSFS_ERR_OUT_OF_MEMORY, 0);
- retval = doPlatformDelete(wpath);
- __PHYSFS_smallFree(wpath);
- return retval;
-} /* __PHYSFS_platformDelete */
-
-
-void *__PHYSFS_platformCreateMutex(void)
-{
- LPCRITICAL_SECTION lpcs;
- lpcs = (LPCRITICAL_SECTION) allocator.Malloc(sizeof (CRITICAL_SECTION));
- BAIL_IF_MACRO(!lpcs, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- InitializeCriticalSection(lpcs);
- return lpcs;
-} /* __PHYSFS_platformCreateMutex */
-
-
-void __PHYSFS_platformDestroyMutex(void *mutex)
-{
- DeleteCriticalSection((LPCRITICAL_SECTION) mutex);
- allocator.Free(mutex);
-} /* __PHYSFS_platformDestroyMutex */
-
-
-int __PHYSFS_platformGrabMutex(void *mutex)
-{
- EnterCriticalSection((LPCRITICAL_SECTION) mutex);
- return 1;
-} /* __PHYSFS_platformGrabMutex */
-
-
-void __PHYSFS_platformReleaseMutex(void *mutex)
-{
- LeaveCriticalSection((LPCRITICAL_SECTION) mutex);
-} /* __PHYSFS_platformReleaseMutex */
-
-
-static PHYSFS_sint64 FileTimeToPhysfsTime(const FILETIME *ft)
-{
- SYSTEMTIME st_utc;
- SYSTEMTIME st_localtz;
- TIME_ZONE_INFORMATION tzi;
- DWORD tzid;
- PHYSFS_sint64 retval;
- struct tm tm;
- BOOL rc;
-
- BAIL_IF_MACRO(!FileTimeToSystemTime(ft, &st_utc), errcodeFromWinApi(), -1);
- tzid = GetTimeZoneInformation(&tzi);
- BAIL_IF_MACRO(tzid == TIME_ZONE_ID_INVALID, errcodeFromWinApi(), -1);
- rc = SystemTimeToTzSpecificLocalTime(&tzi, &st_utc, &st_localtz);
- BAIL_IF_MACRO(!rc, errcodeFromWinApi(), -1);
-
- /* Convert to a format that mktime() can grok... */
- tm.tm_sec = st_localtz.wSecond;
- tm.tm_min = st_localtz.wMinute;
- tm.tm_hour = st_localtz.wHour;
- tm.tm_mday = st_localtz.wDay;
- tm.tm_mon = st_localtz.wMonth - 1;
- tm.tm_year = st_localtz.wYear - 1900;
- tm.tm_wday = -1 /*st_localtz.wDayOfWeek*/;
- tm.tm_yday = -1;
- tm.tm_isdst = -1;
-
- /* Convert to a format PhysicsFS can grok... */
- retval = (PHYSFS_sint64) mktime(&tm);
- BAIL_IF_MACRO(retval == -1, PHYSFS_ERR_OS_ERROR, -1);
- return retval;
-} /* FileTimeToPhysfsTime */
-
-
-int __PHYSFS_platformStat(const char *filename, PHYSFS_Stat *st)
-{
- WIN32_FILE_ATTRIBUTE_DATA winstat;
- WCHAR *wstr = NULL;
- DWORD err = 0;
- BOOL rc = 0;
-
- UTF8_TO_UNICODE_STACK_MACRO(wstr, filename);
- BAIL_IF_MACRO(!wstr, PHYSFS_ERR_OUT_OF_MEMORY, 0);
- rc = GetFileAttributesExW(wstr, GetFileExInfoStandard, &winstat);
- err = (!rc) ? GetLastError() : 0;
- __PHYSFS_smallFree(wstr);
- BAIL_IF_MACRO(!rc, errcodeFromWinApiError(err), 0);
-
- st->modtime = FileTimeToPhysfsTime(&winstat.ftLastWriteTime);
- st->accesstime = FileTimeToPhysfsTime(&winstat.ftLastAccessTime);
- st->createtime = FileTimeToPhysfsTime(&winstat.ftCreationTime);
-
- if(winstat.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
- {
- st->filetype = PHYSFS_FILETYPE_DIRECTORY;
- st->filesize = 0;
- } /* if */
-
- else if(winstat.dwFileAttributes & (FILE_ATTRIBUTE_OFFLINE | FILE_ATTRIBUTE_DEVICE))
- {
- /* !!! FIXME: what are reparse points? */
- st->filetype = PHYSFS_FILETYPE_OTHER;
- /* !!! FIXME: don't rely on this */
- st->filesize = 0;
- } /* else if */
-
- /* !!! FIXME: check for symlinks on Vista. */
-
- else
- {
- st->filetype = PHYSFS_FILETYPE_REGULAR;
- st->filesize = (((PHYSFS_uint64) winstat.nFileSizeHigh) << 32) | winstat.nFileSizeLow;
- } /* else */
-
- st->readonly = ((winstat.dwFileAttributes & FILE_ATTRIBUTE_READONLY) != 0);
-
- return 1;
-} /* __PHYSFS_platformStat */
-
-
-/* !!! FIXME: Don't use C runtime for allocators? */
-int __PHYSFS_platformSetDefaultAllocator(PHYSFS_Allocator *a)
-{
- return 0; /* just use malloc() and friends. */
-} /* __PHYSFS_platformSetDefaultAllocator */
-
-#endif /* PHYSFS_PLATFORM_WINDOWS */
-#endif /* PHYSFS_PLATFORM_WINRT */
-
-/* end of windows.c ... */
-
-