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Diffstat (limited to '3rdparty/libuv/src/win/fs.c')
-rw-r--r--3rdparty/libuv/src/win/fs.c2471
1 files changed, 0 insertions, 2471 deletions
diff --git a/3rdparty/libuv/src/win/fs.c b/3rdparty/libuv/src/win/fs.c
deleted file mode 100644
index 16e3ae7cf1b..00000000000
--- a/3rdparty/libuv/src/win/fs.c
+++ /dev/null
@@ -1,2471 +0,0 @@
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include <assert.h>
-#include <stdlib.h>
-#include <direct.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <io.h>
-#include <limits.h>
-#include <sys/stat.h>
-#include <sys/utime.h>
-#include <stdio.h>
-
-#include "uv.h"
-#include "internal.h"
-#include "req-inl.h"
-#include "handle-inl.h"
-
-#include <wincrypt.h>
-
-
-#define UV_FS_FREE_PATHS 0x0002
-#define UV_FS_FREE_PTR 0x0008
-#define UV_FS_CLEANEDUP 0x0010
-
-
-#define QUEUE_FS_TP_JOB(loop, req) \
- do { \
- uv__req_register(loop, req); \
- uv__work_submit((loop), &(req)->work_req, uv__fs_work, uv__fs_done); \
- } while (0)
-
-#define SET_REQ_RESULT(req, result_value) \
- do { \
- req->result = (result_value); \
- if (req->result == -1) { \
- req->sys_errno_ = _doserrno; \
- req->result = uv_translate_sys_error(req->sys_errno_); \
- } \
- } while (0)
-
-#define SET_REQ_WIN32_ERROR(req, sys_errno) \
- do { \
- req->sys_errno_ = (sys_errno); \
- req->result = uv_translate_sys_error(req->sys_errno_); \
- } while (0)
-
-#define SET_REQ_UV_ERROR(req, uv_errno, sys_errno) \
- do { \
- req->result = (uv_errno); \
- req->sys_errno_ = (sys_errno); \
- } while (0)
-
-#define VERIFY_FD(fd, req) \
- if (fd == -1) { \
- req->result = UV_EBADF; \
- req->sys_errno_ = ERROR_INVALID_HANDLE; \
- return; \
- }
-
-#define FILETIME_TO_UINT(filetime) \
- (*((uint64_t*) &(filetime)) - 116444736000000000ULL)
-
-#define FILETIME_TO_TIME_T(filetime) \
- (FILETIME_TO_UINT(filetime) / 10000000ULL)
-
-#define FILETIME_TO_TIME_NS(filetime, secs) \
- ((FILETIME_TO_UINT(filetime) - (secs * 10000000ULL)) * 100)
-
-#define FILETIME_TO_TIMESPEC(ts, filetime) \
- do { \
- (ts).tv_sec = (long) FILETIME_TO_TIME_T(filetime); \
- (ts).tv_nsec = (long) FILETIME_TO_TIME_NS(filetime, (ts).tv_sec); \
- } while(0)
-
-#define TIME_T_TO_FILETIME(time, filetime_ptr) \
- do { \
- uint64_t bigtime = ((int64_t) (time) * 10000000LL) + \
- 116444736000000000ULL; \
- (filetime_ptr)->dwLowDateTime = bigtime & 0xFFFFFFFF; \
- (filetime_ptr)->dwHighDateTime = bigtime >> 32; \
- } while(0)
-
-#define IS_SLASH(c) ((c) == L'\\' || (c) == L'/')
-#define IS_LETTER(c) (((c) >= L'a' && (c) <= L'z') || \
- ((c) >= L'A' && (c) <= L'Z'))
-
-const WCHAR JUNCTION_PREFIX[] = L"\\??\\";
-const WCHAR JUNCTION_PREFIX_LEN = 4;
-
-const WCHAR LONG_PATH_PREFIX[] = L"\\\\?\\";
-const WCHAR LONG_PATH_PREFIX_LEN = 4;
-
-const WCHAR UNC_PATH_PREFIX[] = L"\\\\?\\UNC\\";
-const WCHAR UNC_PATH_PREFIX_LEN = 8;
-
-
-void uv_fs_init() {
- _fmode = _O_BINARY;
-}
-
-
-INLINE static int fs__capture_path(uv_fs_t* req, const char* path,
- const char* new_path, const int copy_path) {
- char* buf;
- char* pos;
- ssize_t buf_sz = 0, path_len, pathw_len = 0, new_pathw_len = 0;
-
- /* new_path can only be set if path is also set. */
- assert(new_path == NULL || path != NULL);
-
- if (path != NULL) {
- pathw_len = MultiByteToWideChar(CP_UTF8,
- 0,
- path,
- -1,
- NULL,
- 0);
- if (pathw_len == 0) {
- return GetLastError();
- }
-
- buf_sz += pathw_len * sizeof(WCHAR);
- }
-
- if (path != NULL && copy_path) {
- path_len = 1 + strlen(path);
- buf_sz += path_len;
- }
-
- if (new_path != NULL) {
- new_pathw_len = MultiByteToWideChar(CP_UTF8,
- 0,
- new_path,
- -1,
- NULL,
- 0);
- if (new_pathw_len == 0) {
- return GetLastError();
- }
-
- buf_sz += new_pathw_len * sizeof(WCHAR);
- }
-
-
- if (buf_sz == 0) {
- req->file.pathw = NULL;
- req->fs.info.new_pathw = NULL;
- req->path = NULL;
- return 0;
- }
-
- buf = (char*) uv__malloc(buf_sz);
- if (buf == NULL) {
- return ERROR_OUTOFMEMORY;
- }
-
- pos = buf;
-
- if (path != NULL) {
- DWORD r = MultiByteToWideChar(CP_UTF8,
- 0,
- path,
- -1,
- (WCHAR*) pos,
- pathw_len);
- assert(r == (DWORD) pathw_len);
- req->file.pathw = (WCHAR*) pos;
- pos += r * sizeof(WCHAR);
- } else {
- req->file.pathw = NULL;
- }
-
- if (new_path != NULL) {
- DWORD r = MultiByteToWideChar(CP_UTF8,
- 0,
- new_path,
- -1,
- (WCHAR*) pos,
- new_pathw_len);
- assert(r == (DWORD) new_pathw_len);
- req->fs.info.new_pathw = (WCHAR*) pos;
- pos += r * sizeof(WCHAR);
- } else {
- req->fs.info.new_pathw = NULL;
- }
-
- if (!copy_path) {
- req->path = path;
- } else if (path) {
- memcpy(pos, path, path_len);
- assert(path_len == buf_sz - (pos - buf));
- req->path = pos;
- } else {
- req->path = NULL;
- }
-
- req->flags |= UV_FS_FREE_PATHS;
-
- return 0;
-}
-
-
-
-INLINE static void uv_fs_req_init(uv_loop_t* loop, uv_fs_t* req,
- uv_fs_type fs_type, const uv_fs_cb cb) {
- uv_req_init(loop, (uv_req_t*) req);
-
- req->type = UV_FS;
- req->loop = loop;
- req->flags = 0;
- req->fs_type = fs_type;
- req->result = 0;
- req->ptr = NULL;
- req->path = NULL;
- req->cb = cb;
-}
-
-
-static int fs__wide_to_utf8(WCHAR* w_source_ptr,
- DWORD w_source_len,
- char** target_ptr,
- uint64_t* target_len_ptr) {
- int r;
- int target_len;
- char* target;
- target_len = WideCharToMultiByte(CP_UTF8,
- 0,
- w_source_ptr,
- w_source_len,
- NULL,
- 0,
- NULL,
- NULL);
-
- if (target_len == 0) {
- return -1;
- }
-
- if (target_len_ptr != NULL) {
- *target_len_ptr = target_len;
- }
-
- if (target_ptr == NULL) {
- return 0;
- }
-
- target = uv__malloc(target_len + 1);
- if (target == NULL) {
- SetLastError(ERROR_OUTOFMEMORY);
- return -1;
- }
-
- r = WideCharToMultiByte(CP_UTF8,
- 0,
- w_source_ptr,
- w_source_len,
- target,
- target_len,
- NULL,
- NULL);
- assert(r == target_len);
- target[target_len] = '\0';
- *target_ptr = target;
- return 0;
-}
-
-
-INLINE static int fs__readlink_handle(HANDLE handle, char** target_ptr,
- uint64_t* target_len_ptr) {
- char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
- REPARSE_DATA_BUFFER* reparse_data = (REPARSE_DATA_BUFFER*) buffer;
- WCHAR* w_target;
- DWORD w_target_len;
- DWORD bytes;
-
- if (!DeviceIoControl(handle,
- FSCTL_GET_REPARSE_POINT,
- NULL,
- 0,
- buffer,
- sizeof buffer,
- &bytes,
- NULL)) {
- return -1;
- }
-
- if (reparse_data->ReparseTag == IO_REPARSE_TAG_SYMLINK) {
- /* Real symlink */
- w_target = reparse_data->SymbolicLinkReparseBuffer.PathBuffer +
- (reparse_data->SymbolicLinkReparseBuffer.SubstituteNameOffset /
- sizeof(WCHAR));
- w_target_len =
- reparse_data->SymbolicLinkReparseBuffer.SubstituteNameLength /
- sizeof(WCHAR);
-
- /* Real symlinks can contain pretty much everything, but the only thing */
- /* we really care about is undoing the implicit conversion to an NT */
- /* namespaced path that CreateSymbolicLink will perform on absolute */
- /* paths. If the path is win32-namespaced then the user must have */
- /* explicitly made it so, and we better just return the unmodified */
- /* reparse data. */
- if (w_target_len >= 4 &&
- w_target[0] == L'\\' &&
- w_target[1] == L'?' &&
- w_target[2] == L'?' &&
- w_target[3] == L'\\') {
- /* Starts with \??\ */
- if (w_target_len >= 6 &&
- ((w_target[4] >= L'A' && w_target[4] <= L'Z') ||
- (w_target[4] >= L'a' && w_target[4] <= L'z')) &&
- w_target[5] == L':' &&
- (w_target_len == 6 || w_target[6] == L'\\')) {
- /* \??\<drive>:\ */
- w_target += 4;
- w_target_len -= 4;
-
- } else if (w_target_len >= 8 &&
- (w_target[4] == L'U' || w_target[4] == L'u') &&
- (w_target[5] == L'N' || w_target[5] == L'n') &&
- (w_target[6] == L'C' || w_target[6] == L'c') &&
- w_target[7] == L'\\') {
- /* \??\UNC\<server>\<share>\ - make sure the final path looks like */
- /* \\<server>\<share>\ */
- w_target += 6;
- w_target[0] = L'\\';
- w_target_len -= 6;
- }
- }
-
- } else if (reparse_data->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) {
- /* Junction. */
- w_target = reparse_data->MountPointReparseBuffer.PathBuffer +
- (reparse_data->MountPointReparseBuffer.SubstituteNameOffset /
- sizeof(WCHAR));
- w_target_len = reparse_data->MountPointReparseBuffer.SubstituteNameLength /
- sizeof(WCHAR);
-
- /* Only treat junctions that look like \??\<drive>:\ as symlink. */
- /* Junctions can also be used as mount points, like \??\Volume{<guid>}, */
- /* but that's confusing for programs since they wouldn't be able to */
- /* actually understand such a path when returned by uv_readlink(). */
- /* UNC paths are never valid for junctions so we don't care about them. */
- if (!(w_target_len >= 6 &&
- w_target[0] == L'\\' &&
- w_target[1] == L'?' &&
- w_target[2] == L'?' &&
- w_target[3] == L'\\' &&
- ((w_target[4] >= L'A' && w_target[4] <= L'Z') ||
- (w_target[4] >= L'a' && w_target[4] <= L'z')) &&
- w_target[5] == L':' &&
- (w_target_len == 6 || w_target[6] == L'\\'))) {
- SetLastError(ERROR_SYMLINK_NOT_SUPPORTED);
- return -1;
- }
-
- /* Remove leading \??\ */
- w_target += 4;
- w_target_len -= 4;
-
- } else {
- /* Reparse tag does not indicate a symlink. */
- SetLastError(ERROR_SYMLINK_NOT_SUPPORTED);
- return -1;
- }
-
- return fs__wide_to_utf8(w_target, w_target_len, target_ptr, target_len_ptr);
-}
-
-
-void fs__open(uv_fs_t* req) {
- DWORD access;
- DWORD share;
- DWORD disposition;
- DWORD attributes = 0;
- HANDLE file;
- int fd, current_umask;
- int flags = req->fs.info.file_flags;
-
- /* Obtain the active umask. umask() never fails and returns the previous */
- /* umask. */
- current_umask = umask(0);
- umask(current_umask);
-
- /* convert flags and mode to CreateFile parameters */
- switch (flags & (_O_RDONLY | _O_WRONLY | _O_RDWR)) {
- case _O_RDONLY:
- access = FILE_GENERIC_READ;
- attributes |= FILE_FLAG_BACKUP_SEMANTICS;
- break;
- case _O_WRONLY:
- access = FILE_GENERIC_WRITE;
- break;
- case _O_RDWR:
- access = FILE_GENERIC_READ | FILE_GENERIC_WRITE;
- break;
- default:
- goto einval;
- }
-
- if (flags & _O_APPEND) {
- access &= ~FILE_WRITE_DATA;
- access |= FILE_APPEND_DATA;
- attributes &= ~FILE_FLAG_BACKUP_SEMANTICS;
- }
-
- /*
- * Here is where we deviate significantly from what CRT's _open()
- * does. We indiscriminately use all the sharing modes, to match
- * UNIX semantics. In particular, this ensures that the file can
- * be deleted even whilst it's open, fixing issue #1449.
- */
- share = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
-
- switch (flags & (_O_CREAT | _O_EXCL | _O_TRUNC)) {
- case 0:
- case _O_EXCL:
- disposition = OPEN_EXISTING;
- break;
- case _O_CREAT:
- disposition = OPEN_ALWAYS;
- break;
- case _O_CREAT | _O_EXCL:
- case _O_CREAT | _O_TRUNC | _O_EXCL:
- disposition = CREATE_NEW;
- break;
- case _O_TRUNC:
- case _O_TRUNC | _O_EXCL:
- disposition = TRUNCATE_EXISTING;
- break;
- case _O_CREAT | _O_TRUNC:
- disposition = CREATE_ALWAYS;
- break;
- default:
- goto einval;
- }
-
- attributes |= FILE_ATTRIBUTE_NORMAL;
- if (flags & _O_CREAT) {
- if (!((req->fs.info.mode & ~current_umask) & _S_IWRITE)) {
- attributes |= FILE_ATTRIBUTE_READONLY;
- }
- }
-
- if (flags & _O_TEMPORARY ) {
- attributes |= FILE_FLAG_DELETE_ON_CLOSE | FILE_ATTRIBUTE_TEMPORARY;
- access |= DELETE;
- }
-
- if (flags & _O_SHORT_LIVED) {
- attributes |= FILE_ATTRIBUTE_TEMPORARY;
- }
-
- switch (flags & (_O_SEQUENTIAL | _O_RANDOM)) {
- case 0:
- break;
- case _O_SEQUENTIAL:
- attributes |= FILE_FLAG_SEQUENTIAL_SCAN;
- break;
- case _O_RANDOM:
- attributes |= FILE_FLAG_RANDOM_ACCESS;
- break;
- default:
- goto einval;
- }
-
- /* Setting this flag makes it possible to open a directory. */
- attributes |= FILE_FLAG_BACKUP_SEMANTICS;
-
- file = CreateFileW(req->file.pathw,
- access,
- share,
- NULL,
- disposition,
- attributes,
- NULL);
- if (file == INVALID_HANDLE_VALUE) {
- DWORD error = GetLastError();
- if (error == ERROR_FILE_EXISTS && (flags & _O_CREAT) &&
- !(flags & _O_EXCL)) {
- /* Special case: when ERROR_FILE_EXISTS happens and O_CREAT was */
- /* specified, it means the path referred to a directory. */
- SET_REQ_UV_ERROR(req, UV_EISDIR, error);
- } else {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- }
- return;
- }
-
- fd = _open_osfhandle((intptr_t) file, flags);
- if (fd < 0) {
- /* The only known failure mode for _open_osfhandle() is EMFILE, in which
- * case GetLastError() will return zero. However we'll try to handle other
- * errors as well, should they ever occur.
- */
- if (errno == EMFILE)
- SET_REQ_UV_ERROR(req, UV_EMFILE, ERROR_TOO_MANY_OPEN_FILES);
- else if (GetLastError() != ERROR_SUCCESS)
- SET_REQ_WIN32_ERROR(req, GetLastError());
- else
- SET_REQ_WIN32_ERROR(req, UV_UNKNOWN);
- CloseHandle(file);
- return;
- }
-
- SET_REQ_RESULT(req, fd);
- return;
-
- einval:
- SET_REQ_UV_ERROR(req, UV_EINVAL, ERROR_INVALID_PARAMETER);
-}
-
-void fs__close(uv_fs_t* req) {
- int fd = req->file.fd;
- int result;
-
- VERIFY_FD(fd, req);
-
- if (fd > 2)
- result = _close(fd);
- else
- result = 0;
-
- /* _close doesn't set _doserrno on failure, but it does always set errno
- * to EBADF on failure.
- */
- if (result == -1) {
- assert(errno == EBADF);
- SET_REQ_UV_ERROR(req, UV_EBADF, ERROR_INVALID_HANDLE);
- } else {
- req->result = 0;
- }
-}
-
-
-void fs__read(uv_fs_t* req) {
- int fd = req->file.fd;
- int64_t offset = req->fs.info.offset;
- HANDLE handle;
- OVERLAPPED overlapped, *overlapped_ptr;
- LARGE_INTEGER offset_;
- DWORD bytes;
- DWORD error;
- int result;
- unsigned int index;
-
- VERIFY_FD(fd, req);
-
- handle = uv__get_osfhandle(fd);
-
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, ERROR_INVALID_HANDLE);
- return;
- }
-
- if (offset != -1) {
- memset(&overlapped, 0, sizeof overlapped);
- overlapped_ptr = &overlapped;
- } else {
- overlapped_ptr = NULL;
- }
-
- index = 0;
- bytes = 0;
- do {
- DWORD incremental_bytes;
-
- if (offset != -1) {
- offset_.QuadPart = offset + bytes;
- overlapped.Offset = offset_.LowPart;
- overlapped.OffsetHigh = offset_.HighPart;
- }
-
- result = ReadFile(handle,
- req->fs.info.bufs[index].base,
- req->fs.info.bufs[index].len,
- &incremental_bytes,
- overlapped_ptr);
- bytes += incremental_bytes;
- ++index;
- } while (result && index < req->fs.info.nbufs);
-
- if (result || bytes > 0) {
- SET_REQ_RESULT(req, bytes);
- } else {
- error = GetLastError();
- if (error == ERROR_HANDLE_EOF) {
- SET_REQ_RESULT(req, bytes);
- } else {
- SET_REQ_WIN32_ERROR(req, error);
- }
- }
-}
-
-
-void fs__write(uv_fs_t* req) {
- int fd = req->file.fd;
- int64_t offset = req->fs.info.offset;
- HANDLE handle;
- OVERLAPPED overlapped, *overlapped_ptr;
- LARGE_INTEGER offset_;
- DWORD bytes;
- int result;
- unsigned int index;
-
- VERIFY_FD(fd, req);
-
- handle = uv__get_osfhandle(fd);
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, ERROR_INVALID_HANDLE);
- return;
- }
-
- if (offset != -1) {
- memset(&overlapped, 0, sizeof overlapped);
- overlapped_ptr = &overlapped;
- } else {
- overlapped_ptr = NULL;
- }
-
- index = 0;
- bytes = 0;
- do {
- DWORD incremental_bytes;
-
- if (offset != -1) {
- offset_.QuadPart = offset + bytes;
- overlapped.Offset = offset_.LowPart;
- overlapped.OffsetHigh = offset_.HighPart;
- }
-
- result = WriteFile(handle,
- req->fs.info.bufs[index].base,
- req->fs.info.bufs[index].len,
- &incremental_bytes,
- overlapped_ptr);
- bytes += incremental_bytes;
- ++index;
- } while (result && index < req->fs.info.nbufs);
-
- if (result || bytes > 0) {
- SET_REQ_RESULT(req, bytes);
- } else {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- }
-}
-
-
-void fs__rmdir(uv_fs_t* req) {
- int result = _wrmdir(req->file.pathw);
- SET_REQ_RESULT(req, result);
-}
-
-
-void fs__unlink(uv_fs_t* req) {
- const WCHAR* pathw = req->file.pathw;
- HANDLE handle;
- BY_HANDLE_FILE_INFORMATION info;
- FILE_DISPOSITION_INFORMATION disposition;
- IO_STATUS_BLOCK iosb;
- NTSTATUS status;
-
- handle = CreateFileW(pathw,
- FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES | DELETE,
- FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
- NULL,
- OPEN_EXISTING,
- FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS,
- NULL);
-
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- if (!GetFileInformationByHandle(handle, &info)) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- CloseHandle(handle);
- return;
- }
-
- if (info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
- /* Do not allow deletion of directories, unless it is a symlink. When */
- /* the path refers to a non-symlink directory, report EPERM as mandated */
- /* by POSIX.1. */
-
- /* Check if it is a reparse point. If it's not, it's a normal directory. */
- if (!(info.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
- SET_REQ_WIN32_ERROR(req, ERROR_ACCESS_DENIED);
- CloseHandle(handle);
- return;
- }
-
- /* Read the reparse point and check if it is a valid symlink. */
- /* If not, don't unlink. */
- if (fs__readlink_handle(handle, NULL, NULL) < 0) {
- DWORD error = GetLastError();
- if (error == ERROR_SYMLINK_NOT_SUPPORTED)
- error = ERROR_ACCESS_DENIED;
- SET_REQ_WIN32_ERROR(req, error);
- CloseHandle(handle);
- return;
- }
- }
-
- if (info.dwFileAttributes & FILE_ATTRIBUTE_READONLY) {
- /* Remove read-only attribute */
- FILE_BASIC_INFORMATION basic = { 0 };
-
- basic.FileAttributes = info.dwFileAttributes & ~(FILE_ATTRIBUTE_READONLY);
-
- status = pNtSetInformationFile(handle,
- &iosb,
- &basic,
- sizeof basic,
- FileBasicInformation);
- if (!NT_SUCCESS(status)) {
- SET_REQ_WIN32_ERROR(req, pRtlNtStatusToDosError(status));
- CloseHandle(handle);
- return;
- }
- }
-
- /* Try to set the delete flag. */
- disposition.DeleteFile = TRUE;
- status = pNtSetInformationFile(handle,
- &iosb,
- &disposition,
- sizeof disposition,
- FileDispositionInformation);
- if (NT_SUCCESS(status)) {
- SET_REQ_SUCCESS(req);
- } else {
- SET_REQ_WIN32_ERROR(req, pRtlNtStatusToDosError(status));
- }
-
- CloseHandle(handle);
-}
-
-
-void fs__mkdir(uv_fs_t* req) {
- /* TODO: use req->mode. */
- int result = _wmkdir(req->file.pathw);
- SET_REQ_RESULT(req, result);
-}
-
-
-/* OpenBSD original: lib/libc/stdio/mktemp.c */
-void fs__mkdtemp(uv_fs_t* req) {
- static const WCHAR *tempchars =
- L"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
- static const size_t num_chars = 62;
- static const size_t num_x = 6;
- WCHAR *cp, *ep;
- unsigned int tries, i;
- size_t len;
- HCRYPTPROV h_crypt_prov;
- uint64_t v;
- BOOL released;
-
- len = wcslen(req->file.pathw);
- ep = req->file.pathw + len;
- if (len < num_x || wcsncmp(ep - num_x, L"XXXXXX", num_x)) {
- SET_REQ_UV_ERROR(req, UV_EINVAL, ERROR_INVALID_PARAMETER);
- return;
- }
-
- if (!CryptAcquireContext(&h_crypt_prov, NULL, NULL, PROV_RSA_FULL,
- CRYPT_VERIFYCONTEXT)) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- tries = TMP_MAX;
- do {
- if (!CryptGenRandom(h_crypt_prov, sizeof(v), (BYTE*) &v)) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- break;
- }
-
- cp = ep - num_x;
- for (i = 0; i < num_x; i++) {
- *cp++ = tempchars[v % num_chars];
- v /= num_chars;
- }
-
- if (_wmkdir(req->file.pathw) == 0) {
- len = strlen(req->path);
- wcstombs((char*) req->path + len - num_x, ep - num_x, num_x);
- SET_REQ_RESULT(req, 0);
- break;
- } else if (errno != EEXIST) {
- SET_REQ_RESULT(req, -1);
- break;
- }
- } while (--tries);
-
- released = CryptReleaseContext(h_crypt_prov, 0);
- assert(released);
- if (tries == 0) {
- SET_REQ_RESULT(req, -1);
- }
-}
-
-
-void fs__scandir(uv_fs_t* req) {
- static const size_t dirents_initial_size = 32;
-
- HANDLE dir_handle = INVALID_HANDLE_VALUE;
-
- uv__dirent_t** dirents = NULL;
- size_t dirents_size = 0;
- size_t dirents_used = 0;
-
- IO_STATUS_BLOCK iosb;
- NTSTATUS status;
-
- /* Buffer to hold directory entries returned by NtQueryDirectoryFile.
- * It's important that this buffer can hold at least one entry, regardless
- * of the length of the file names present in the enumerated directory.
- * A file name is at most 256 WCHARs long.
- * According to MSDN, the buffer must be aligned at an 8-byte boundary.
- */
-#if _MSC_VER
- __declspec(align(8)) char buffer[8192];
-#else
- __attribute__ ((aligned (8))) char buffer[8192];
-#endif
-
- STATIC_ASSERT(sizeof buffer >=
- sizeof(FILE_DIRECTORY_INFORMATION) + 256 * sizeof(WCHAR));
-
- /* Open the directory. */
- dir_handle =
- CreateFileW(req->file.pathw,
- FILE_LIST_DIRECTORY | SYNCHRONIZE,
- FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
- NULL,
- OPEN_EXISTING,
- FILE_FLAG_BACKUP_SEMANTICS,
- NULL);
- if (dir_handle == INVALID_HANDLE_VALUE)
- goto win32_error;
-
- /* Read the first chunk. */
- status = pNtQueryDirectoryFile(dir_handle,
- NULL,
- NULL,
- NULL,
- &iosb,
- &buffer,
- sizeof buffer,
- FileDirectoryInformation,
- FALSE,
- NULL,
- TRUE);
-
- /* If the handle is not a directory, we'll get STATUS_INVALID_PARAMETER.
- * This should be reported back as UV_ENOTDIR.
- */
- if (status == STATUS_INVALID_PARAMETER)
- goto not_a_directory_error;
-
- while (NT_SUCCESS(status)) {
- char* position = buffer;
- size_t next_entry_offset = 0;
-
- do {
- FILE_DIRECTORY_INFORMATION* info;
- uv__dirent_t* dirent;
-
- size_t wchar_len;
- size_t utf8_len;
-
- /* Obtain a pointer to the current directory entry. */
- position += next_entry_offset;
- info = (FILE_DIRECTORY_INFORMATION*) position;
-
- /* Fetch the offset to the next directory entry. */
- next_entry_offset = info->NextEntryOffset;
-
- /* Compute the length of the filename in WCHARs. */
- wchar_len = info->FileNameLength / sizeof info->FileName[0];
-
- /* Skip over '.' and '..' entries. */
- if (wchar_len == 1 && info->FileName[0] == L'.')
- continue;
- if (wchar_len == 2 && info->FileName[0] == L'.' &&
- info->FileName[1] == L'.')
- continue;
-
- /* Compute the space required to store the filename as UTF-8. */
- utf8_len = WideCharToMultiByte(
- CP_UTF8, 0, &info->FileName[0], wchar_len, NULL, 0, NULL, NULL);
- if (utf8_len == 0)
- goto win32_error;
-
- /* Resize the dirent array if needed. */
- if (dirents_used >= dirents_size) {
- size_t new_dirents_size =
- dirents_size == 0 ? dirents_initial_size : dirents_size << 1;
- uv__dirent_t** new_dirents =
- uv__realloc(dirents, new_dirents_size * sizeof *dirents);
-
- if (new_dirents == NULL)
- goto out_of_memory_error;
-
- dirents_size = new_dirents_size;
- dirents = new_dirents;
- }
-
- /* Allocate space for the uv dirent structure. The dirent structure
- * includes room for the first character of the filename, but `utf8_len`
- * doesn't count the NULL terminator at this point.
- */
- dirent = uv__malloc(sizeof *dirent + utf8_len);
- if (dirent == NULL)
- goto out_of_memory_error;
-
- dirents[dirents_used++] = dirent;
-
- /* Convert file name to UTF-8. */
- if (WideCharToMultiByte(CP_UTF8,
- 0,
- &info->FileName[0],
- wchar_len,
- &dirent->d_name[0],
- utf8_len,
- NULL,
- NULL) == 0)
- goto win32_error;
-
- /* Add a null terminator to the filename. */
- dirent->d_name[utf8_len] = '\0';
-
- /* Fill out the type field. */
- if (info->FileAttributes & FILE_ATTRIBUTE_DEVICE)
- dirent->d_type = UV__DT_CHAR;
- else if (info->FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
- dirent->d_type = UV__DT_LINK;
- else if (info->FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
- dirent->d_type = UV__DT_DIR;
- else
- dirent->d_type = UV__DT_FILE;
- } while (next_entry_offset != 0);
-
- /* Read the next chunk. */
- status = pNtQueryDirectoryFile(dir_handle,
- NULL,
- NULL,
- NULL,
- &iosb,
- &buffer,
- sizeof buffer,
- FileDirectoryInformation,
- FALSE,
- NULL,
- FALSE);
-
- /* After the first pNtQueryDirectoryFile call, the function may return
- * STATUS_SUCCESS even if the buffer was too small to hold at least one
- * directory entry.
- */
- if (status == STATUS_SUCCESS && iosb.Information == 0)
- status = STATUS_BUFFER_OVERFLOW;
- }
-
- if (status != STATUS_NO_MORE_FILES)
- goto nt_error;
-
- CloseHandle(dir_handle);
-
- /* Store the result in the request object. */
- req->ptr = dirents;
- if (dirents != NULL)
- req->flags |= UV_FS_FREE_PTR;
-
- SET_REQ_RESULT(req, dirents_used);
-
- /* `nbufs` will be used as index by uv_fs_scandir_next. */
- req->fs.info.nbufs = 0;
-
- return;
-
-nt_error:
- SET_REQ_WIN32_ERROR(req, pRtlNtStatusToDosError(status));
- goto cleanup;
-
-win32_error:
- SET_REQ_WIN32_ERROR(req, GetLastError());
- goto cleanup;
-
-not_a_directory_error:
- SET_REQ_UV_ERROR(req, UV_ENOTDIR, ERROR_DIRECTORY);
- goto cleanup;
-
-out_of_memory_error:
- SET_REQ_UV_ERROR(req, UV_ENOMEM, ERROR_OUTOFMEMORY);
- goto cleanup;
-
-cleanup:
- if (dir_handle != INVALID_HANDLE_VALUE)
- CloseHandle(dir_handle);
- while (dirents_used > 0)
- uv__free(dirents[--dirents_used]);
- if (dirents != NULL)
- uv__free(dirents);
-}
-
-
-INLINE static int fs__stat_handle(HANDLE handle, uv_stat_t* statbuf) {
- FILE_ALL_INFORMATION file_info;
- FILE_FS_VOLUME_INFORMATION volume_info;
- NTSTATUS nt_status;
- IO_STATUS_BLOCK io_status;
-
- nt_status = pNtQueryInformationFile(handle,
- &io_status,
- &file_info,
- sizeof file_info,
- FileAllInformation);
-
- /* Buffer overflow (a warning status code) is expected here. */
- if (NT_ERROR(nt_status)) {
- SetLastError(pRtlNtStatusToDosError(nt_status));
- return -1;
- }
-
- nt_status = pNtQueryVolumeInformationFile(handle,
- &io_status,
- &volume_info,
- sizeof volume_info,
- FileFsVolumeInformation);
-
- /* Buffer overflow (a warning status code) is expected here. */
- if (io_status.Status == STATUS_NOT_IMPLEMENTED) {
- statbuf->st_dev = 0;
- } else if (NT_ERROR(nt_status)) {
- SetLastError(pRtlNtStatusToDosError(nt_status));
- return -1;
- } else {
- statbuf->st_dev = volume_info.VolumeSerialNumber;
- }
-
- /* Todo: st_mode should probably always be 0666 for everyone. We might also
- * want to report 0777 if the file is a .exe or a directory.
- *
- * Currently it's based on whether the 'readonly' attribute is set, which
- * makes little sense because the semantics are so different: the 'read-only'
- * flag is just a way for a user to protect against accidental deletion, and
- * serves no security purpose. Windows uses ACLs for that.
- *
- * Also people now use uv_fs_chmod() to take away the writable bit for good
- * reasons. Windows however just makes the file read-only, which makes it
- * impossible to delete the file afterwards, since read-only files can't be
- * deleted.
- *
- * IOW it's all just a clusterfuck and we should think of something that
- * makes slightly more sense.
- *
- * And uv_fs_chmod should probably just fail on windows or be a total no-op.
- * There's nothing sensible it can do anyway.
- */
- statbuf->st_mode = 0;
-
- if (file_info.BasicInformation.FileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {
- statbuf->st_mode |= S_IFLNK;
- if (fs__readlink_handle(handle, NULL, &statbuf->st_size) != 0)
- return -1;
-
- } else if (file_info.BasicInformation.FileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
- statbuf->st_mode |= _S_IFDIR;
- statbuf->st_size = 0;
-
- } else {
- statbuf->st_mode |= _S_IFREG;
- statbuf->st_size = file_info.StandardInformation.EndOfFile.QuadPart;
- }
-
- if (file_info.BasicInformation.FileAttributes & FILE_ATTRIBUTE_READONLY)
- statbuf->st_mode |= _S_IREAD | (_S_IREAD >> 3) | (_S_IREAD >> 6);
- else
- statbuf->st_mode |= (_S_IREAD | _S_IWRITE) | ((_S_IREAD | _S_IWRITE) >> 3) |
- ((_S_IREAD | _S_IWRITE) >> 6);
-
- FILETIME_TO_TIMESPEC(statbuf->st_atim, file_info.BasicInformation.LastAccessTime);
- FILETIME_TO_TIMESPEC(statbuf->st_ctim, file_info.BasicInformation.ChangeTime);
- FILETIME_TO_TIMESPEC(statbuf->st_mtim, file_info.BasicInformation.LastWriteTime);
- FILETIME_TO_TIMESPEC(statbuf->st_birthtim, file_info.BasicInformation.CreationTime);
-
- statbuf->st_ino = file_info.InternalInformation.IndexNumber.QuadPart;
-
- /* st_blocks contains the on-disk allocation size in 512-byte units. */
- statbuf->st_blocks =
- file_info.StandardInformation.AllocationSize.QuadPart >> 9ULL;
-
- statbuf->st_nlink = file_info.StandardInformation.NumberOfLinks;
-
- /* The st_blksize is supposed to be the 'optimal' number of bytes for reading
- * and writing to the disk. That is, for any definition of 'optimal' - it's
- * supposed to at least avoid read-update-write behavior when writing to the
- * disk.
- *
- * However nobody knows this and even fewer people actually use this value,
- * and in order to fill it out we'd have to make another syscall to query the
- * volume for FILE_FS_SECTOR_SIZE_INFORMATION.
- *
- * Therefore we'll just report a sensible value that's quite commonly okay
- * on modern hardware.
- */
- statbuf->st_blksize = 2048;
-
- /* Todo: set st_flags to something meaningful. Also provide a wrapper for
- * chattr(2).
- */
- statbuf->st_flags = 0;
-
- /* Windows has nothing sensible to say about these values, so they'll just
- * remain empty.
- */
- statbuf->st_gid = 0;
- statbuf->st_uid = 0;
- statbuf->st_rdev = 0;
- statbuf->st_gen = 0;
-
- return 0;
-}
-
-
-INLINE static void fs__stat_prepare_path(WCHAR* pathw) {
- size_t len = wcslen(pathw);
-
- /* TODO: ignore namespaced paths. */
- if (len > 1 && pathw[len - 2] != L':' &&
- (pathw[len - 1] == L'\\' || pathw[len - 1] == L'/')) {
- pathw[len - 1] = '\0';
- }
-}
-
-
-INLINE static void fs__stat_impl(uv_fs_t* req, int do_lstat) {
- HANDLE handle;
- DWORD flags;
-
- flags = FILE_FLAG_BACKUP_SEMANTICS;
- if (do_lstat) {
- flags |= FILE_FLAG_OPEN_REPARSE_POINT;
- }
-
- handle = CreateFileW(req->file.pathw,
- FILE_READ_ATTRIBUTES,
- FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
- NULL,
- OPEN_EXISTING,
- flags,
- NULL);
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- if (fs__stat_handle(handle, &req->statbuf) != 0) {
- DWORD error = GetLastError();
- if (do_lstat && error == ERROR_SYMLINK_NOT_SUPPORTED) {
- /* We opened a reparse point but it was not a symlink. Try again. */
- fs__stat_impl(req, 0);
-
- } else {
- /* Stat failed. */
- SET_REQ_WIN32_ERROR(req, GetLastError());
- }
-
- CloseHandle(handle);
- return;
- }
-
- req->ptr = &req->statbuf;
- req->result = 0;
- CloseHandle(handle);
-}
-
-
-static void fs__stat(uv_fs_t* req) {
- fs__stat_prepare_path(req->file.pathw);
- fs__stat_impl(req, 0);
-}
-
-
-static void fs__lstat(uv_fs_t* req) {
- fs__stat_prepare_path(req->file.pathw);
- fs__stat_impl(req, 1);
-}
-
-
-static void fs__fstat(uv_fs_t* req) {
- int fd = req->file.fd;
- HANDLE handle;
-
- VERIFY_FD(fd, req);
-
- handle = uv__get_osfhandle(fd);
-
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, ERROR_INVALID_HANDLE);
- return;
- }
-
- if (fs__stat_handle(handle, &req->statbuf) != 0) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- req->ptr = &req->statbuf;
- req->result = 0;
-}
-
-
-static void fs__rename(uv_fs_t* req) {
- if (!MoveFileExW(req->file.pathw, req->fs.info.new_pathw, MOVEFILE_REPLACE_EXISTING)) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- SET_REQ_RESULT(req, 0);
-}
-
-
-INLINE static void fs__sync_impl(uv_fs_t* req) {
- int fd = req->file.fd;
- int result;
-
- VERIFY_FD(fd, req);
-
- result = FlushFileBuffers(uv__get_osfhandle(fd)) ? 0 : -1;
- if (result == -1) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- } else {
- SET_REQ_RESULT(req, result);
- }
-}
-
-
-static void fs__fsync(uv_fs_t* req) {
- fs__sync_impl(req);
-}
-
-
-static void fs__fdatasync(uv_fs_t* req) {
- fs__sync_impl(req);
-}
-
-
-static void fs__ftruncate(uv_fs_t* req) {
- int fd = req->file.fd;
- HANDLE handle;
- NTSTATUS status;
- IO_STATUS_BLOCK io_status;
- FILE_END_OF_FILE_INFORMATION eof_info;
-
- VERIFY_FD(fd, req);
-
- handle = uv__get_osfhandle(fd);
-
- eof_info.EndOfFile.QuadPart = req->fs.info.offset;
-
- status = pNtSetInformationFile(handle,
- &io_status,
- &eof_info,
- sizeof eof_info,
- FileEndOfFileInformation);
-
- if (NT_SUCCESS(status)) {
- SET_REQ_RESULT(req, 0);
- } else {
- SET_REQ_WIN32_ERROR(req, pRtlNtStatusToDosError(status));
- }
-}
-
-
-static void fs__sendfile(uv_fs_t* req) {
- int fd_in = req->file.fd, fd_out = req->fs.info.fd_out;
- size_t length = req->fs.info.bufsml[0].len;
- int64_t offset = req->fs.info.offset;
- const size_t max_buf_size = 65536;
- size_t buf_size = length < max_buf_size ? length : max_buf_size;
- int n, result = 0;
- int64_t result_offset = 0;
- char* buf = (char*) uv__malloc(buf_size);
- if (!buf) {
- uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
- }
-
- if (offset != -1) {
- result_offset = _lseeki64(fd_in, offset, SEEK_SET);
- }
-
- if (result_offset == -1) {
- result = -1;
- } else {
- while (length > 0) {
- n = _read(fd_in, buf, length < buf_size ? length : buf_size);
- if (n == 0) {
- break;
- } else if (n == -1) {
- result = -1;
- break;
- }
-
- length -= n;
-
- n = _write(fd_out, buf, n);
- if (n == -1) {
- result = -1;
- break;
- }
-
- result += n;
- }
- }
-
- uv__free(buf);
-
- SET_REQ_RESULT(req, result);
-}
-
-
-static void fs__access(uv_fs_t* req) {
- DWORD attr = GetFileAttributesW(req->file.pathw);
-
- if (attr == INVALID_FILE_ATTRIBUTES) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- /*
- * Access is possible if
- * - write access wasn't requested,
- * - or the file isn't read-only,
- * - or it's a directory.
- * (Directories cannot be read-only on Windows.)
- */
- if (!(req->flags & W_OK) ||
- !(attr & FILE_ATTRIBUTE_READONLY) ||
- (attr & FILE_ATTRIBUTE_DIRECTORY)) {
- SET_REQ_RESULT(req, 0);
- } else {
- SET_REQ_WIN32_ERROR(req, UV_EPERM);
- }
-
-}
-
-
-static void fs__chmod(uv_fs_t* req) {
- int result = _wchmod(req->file.pathw, req->fs.info.mode);
- SET_REQ_RESULT(req, result);
-}
-
-
-static void fs__fchmod(uv_fs_t* req) {
- int fd = req->file.fd;
- HANDLE handle;
- NTSTATUS nt_status;
- IO_STATUS_BLOCK io_status;
- FILE_BASIC_INFORMATION file_info;
-
- VERIFY_FD(fd, req);
-
- handle = uv__get_osfhandle(fd);
-
- nt_status = pNtQueryInformationFile(handle,
- &io_status,
- &file_info,
- sizeof file_info,
- FileBasicInformation);
-
- if (!NT_SUCCESS(nt_status)) {
- SET_REQ_WIN32_ERROR(req, pRtlNtStatusToDosError(nt_status));
- return;
- }
-
- if (req->fs.info.mode & _S_IWRITE) {
- file_info.FileAttributes &= ~FILE_ATTRIBUTE_READONLY;
- } else {
- file_info.FileAttributes |= FILE_ATTRIBUTE_READONLY;
- }
-
- nt_status = pNtSetInformationFile(handle,
- &io_status,
- &file_info,
- sizeof file_info,
- FileBasicInformation);
-
- if (!NT_SUCCESS(nt_status)) {
- SET_REQ_WIN32_ERROR(req, pRtlNtStatusToDosError(nt_status));
- return;
- }
-
- SET_REQ_SUCCESS(req);
-}
-
-
-INLINE static int fs__utime_handle(HANDLE handle, double atime, double mtime) {
- FILETIME filetime_a, filetime_m;
-
- TIME_T_TO_FILETIME((time_t) atime, &filetime_a);
- TIME_T_TO_FILETIME((time_t) mtime, &filetime_m);
-
- if (!SetFileTime(handle, NULL, &filetime_a, &filetime_m)) {
- return -1;
- }
-
- return 0;
-}
-
-
-static void fs__utime(uv_fs_t* req) {
- HANDLE handle;
-
- handle = CreateFileW(req->file.pathw,
- FILE_WRITE_ATTRIBUTES,
- FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
- NULL,
- OPEN_EXISTING,
- FILE_FLAG_BACKUP_SEMANTICS,
- NULL);
-
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- if (fs__utime_handle(handle, req->fs.time.atime, req->fs.time.mtime) != 0) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- CloseHandle(handle);
- return;
- }
-
- CloseHandle(handle);
-
- req->result = 0;
-}
-
-
-static void fs__futime(uv_fs_t* req) {
- int fd = req->file.fd;
- HANDLE handle;
- VERIFY_FD(fd, req);
-
- handle = uv__get_osfhandle(fd);
-
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, ERROR_INVALID_HANDLE);
- return;
- }
-
- if (fs__utime_handle(handle, req->fs.time.atime, req->fs.time.mtime) != 0) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- req->result = 0;
-}
-
-
-static void fs__link(uv_fs_t* req) {
- DWORD r = CreateHardLinkW(req->fs.info.new_pathw, req->file.pathw, NULL);
- if (r == 0) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- } else {
- req->result = 0;
- }
-}
-
-
-static void fs__create_junction(uv_fs_t* req, const WCHAR* path,
- const WCHAR* new_path) {
- HANDLE handle = INVALID_HANDLE_VALUE;
- REPARSE_DATA_BUFFER *buffer = NULL;
- int created = 0;
- int target_len;
- int is_absolute, is_long_path;
- int needed_buf_size, used_buf_size, used_data_size, path_buf_len;
- int start, len, i;
- int add_slash;
- DWORD bytes;
- WCHAR* path_buf;
-
- target_len = wcslen(path);
- is_long_path = wcsncmp(path, LONG_PATH_PREFIX, LONG_PATH_PREFIX_LEN) == 0;
-
- if (is_long_path) {
- is_absolute = 1;
- } else {
- is_absolute = target_len >= 3 && IS_LETTER(path[0]) &&
- path[1] == L':' && IS_SLASH(path[2]);
- }
-
- if (!is_absolute) {
- /* Not supporting relative paths */
- SET_REQ_UV_ERROR(req, UV_EINVAL, ERROR_NOT_SUPPORTED);
- return;
- }
-
- /* Do a pessimistic calculation of the required buffer size */
- needed_buf_size =
- FIELD_OFFSET(REPARSE_DATA_BUFFER, MountPointReparseBuffer.PathBuffer) +
- JUNCTION_PREFIX_LEN * sizeof(WCHAR) +
- 2 * (target_len + 2) * sizeof(WCHAR);
-
- /* Allocate the buffer */
- buffer = (REPARSE_DATA_BUFFER*)uv__malloc(needed_buf_size);
- if (!buffer) {
- uv_fatal_error(ERROR_OUTOFMEMORY, "uv__malloc");
- }
-
- /* Grab a pointer to the part of the buffer where filenames go */
- path_buf = (WCHAR*)&(buffer->MountPointReparseBuffer.PathBuffer);
- path_buf_len = 0;
-
- /* Copy the substitute (internal) target path */
- start = path_buf_len;
-
- wcsncpy((WCHAR*)&path_buf[path_buf_len], JUNCTION_PREFIX,
- JUNCTION_PREFIX_LEN);
- path_buf_len += JUNCTION_PREFIX_LEN;
-
- add_slash = 0;
- for (i = is_long_path ? LONG_PATH_PREFIX_LEN : 0; path[i] != L'\0'; i++) {
- if (IS_SLASH(path[i])) {
- add_slash = 1;
- continue;
- }
-
- if (add_slash) {
- path_buf[path_buf_len++] = L'\\';
- add_slash = 0;
- }
-
- path_buf[path_buf_len++] = path[i];
- }
- path_buf[path_buf_len++] = L'\\';
- len = path_buf_len - start;
-
- /* Set the info about the substitute name */
- buffer->MountPointReparseBuffer.SubstituteNameOffset = start * sizeof(WCHAR);
- buffer->MountPointReparseBuffer.SubstituteNameLength = len * sizeof(WCHAR);
-
- /* Insert null terminator */
- path_buf[path_buf_len++] = L'\0';
-
- /* Copy the print name of the target path */
- start = path_buf_len;
- add_slash = 0;
- for (i = is_long_path ? LONG_PATH_PREFIX_LEN : 0; path[i] != L'\0'; i++) {
- if (IS_SLASH(path[i])) {
- add_slash = 1;
- continue;
- }
-
- if (add_slash) {
- path_buf[path_buf_len++] = L'\\';
- add_slash = 0;
- }
-
- path_buf[path_buf_len++] = path[i];
- }
- len = path_buf_len - start;
- if (len == 2) {
- path_buf[path_buf_len++] = L'\\';
- len++;
- }
-
- /* Set the info about the print name */
- buffer->MountPointReparseBuffer.PrintNameOffset = start * sizeof(WCHAR);
- buffer->MountPointReparseBuffer.PrintNameLength = len * sizeof(WCHAR);
-
- /* Insert another null terminator */
- path_buf[path_buf_len++] = L'\0';
-
- /* Calculate how much buffer space was actually used */
- used_buf_size = FIELD_OFFSET(REPARSE_DATA_BUFFER, MountPointReparseBuffer.PathBuffer) +
- path_buf_len * sizeof(WCHAR);
- used_data_size = used_buf_size -
- FIELD_OFFSET(REPARSE_DATA_BUFFER, MountPointReparseBuffer);
-
- /* Put general info in the data buffer */
- buffer->ReparseTag = IO_REPARSE_TAG_MOUNT_POINT;
- buffer->ReparseDataLength = used_data_size;
- buffer->Reserved = 0;
-
- /* Create a new directory */
- if (!CreateDirectoryW(new_path, NULL)) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- goto error;
- }
- created = 1;
-
- /* Open the directory */
- handle = CreateFileW(new_path,
- GENERIC_WRITE,
- 0,
- NULL,
- OPEN_EXISTING,
- FILE_FLAG_BACKUP_SEMANTICS |
- FILE_FLAG_OPEN_REPARSE_POINT,
- NULL);
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- goto error;
- }
-
- /* Create the actual reparse point */
- if (!DeviceIoControl(handle,
- FSCTL_SET_REPARSE_POINT,
- buffer,
- used_buf_size,
- NULL,
- 0,
- &bytes,
- NULL)) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- goto error;
- }
-
- /* Clean up */
- CloseHandle(handle);
- uv__free(buffer);
-
- SET_REQ_RESULT(req, 0);
- return;
-
-error:
- uv__free(buffer);
-
- if (handle != INVALID_HANDLE_VALUE) {
- CloseHandle(handle);
- }
-
- if (created) {
- RemoveDirectoryW(new_path);
- }
-}
-
-
-static void fs__symlink(uv_fs_t* req) {
- WCHAR* pathw = req->file.pathw;
- WCHAR* new_pathw = req->fs.info.new_pathw;
- int flags = req->fs.info.file_flags;
- int result;
-
-
- if (flags & UV_FS_SYMLINK_JUNCTION) {
- fs__create_junction(req, pathw, new_pathw);
- } else if (pCreateSymbolicLinkW) {
- result = pCreateSymbolicLinkW(new_pathw,
- pathw,
- flags & UV_FS_SYMLINK_DIR ? SYMBOLIC_LINK_FLAG_DIRECTORY : 0) ? 0 : -1;
- if (result == -1) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- } else {
- SET_REQ_RESULT(req, result);
- }
- } else {
- SET_REQ_UV_ERROR(req, UV_ENOSYS, ERROR_NOT_SUPPORTED);
- }
-}
-
-
-static void fs__readlink(uv_fs_t* req) {
- HANDLE handle;
-
- handle = CreateFileW(req->file.pathw,
- 0,
- 0,
- NULL,
- OPEN_EXISTING,
- FILE_FLAG_OPEN_REPARSE_POINT | FILE_FLAG_BACKUP_SEMANTICS,
- NULL);
-
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- if (fs__readlink_handle(handle, (char**) &req->ptr, NULL) != 0) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- CloseHandle(handle);
- return;
- }
-
- req->flags |= UV_FS_FREE_PTR;
- SET_REQ_RESULT(req, 0);
-
- CloseHandle(handle);
-}
-
-
-static size_t fs__realpath_handle(HANDLE handle, char** realpath_ptr) {
- int r;
- DWORD w_realpath_len;
- WCHAR* w_realpath_ptr = NULL;
- WCHAR* w_realpath_buf;
-
- w_realpath_len = pGetFinalPathNameByHandleW(handle, NULL, 0, VOLUME_NAME_DOS);
- if (w_realpath_len == 0) {
- return -1;
- }
-
- w_realpath_buf = uv__malloc((w_realpath_len + 1) * sizeof(WCHAR));
- if (w_realpath_buf == NULL) {
- SetLastError(ERROR_OUTOFMEMORY);
- return -1;
- }
- w_realpath_ptr = w_realpath_buf;
-
- if (pGetFinalPathNameByHandleW(handle,
- w_realpath_ptr,
- w_realpath_len,
- VOLUME_NAME_DOS) == 0) {
- uv__free(w_realpath_buf);
- SetLastError(ERROR_INVALID_HANDLE);
- return -1;
- }
-
- /* convert UNC path to long path */
- if (wcsncmp(w_realpath_ptr,
- UNC_PATH_PREFIX,
- UNC_PATH_PREFIX_LEN) == 0) {
- w_realpath_ptr += 6;
- *w_realpath_ptr = L'\\';
- w_realpath_len -= 6;
- } else if (wcsncmp(w_realpath_ptr,
- LONG_PATH_PREFIX,
- LONG_PATH_PREFIX_LEN) == 0) {
- w_realpath_ptr += 4;
- w_realpath_len -= 4;
- } else {
- uv__free(w_realpath_buf);
- SetLastError(ERROR_INVALID_HANDLE);
- return -1;
- }
-
- r = fs__wide_to_utf8(w_realpath_ptr, w_realpath_len, realpath_ptr, NULL);
- uv__free(w_realpath_buf);
- return r;
-}
-
-static void fs__realpath(uv_fs_t* req) {
- HANDLE handle;
-
- if (!pGetFinalPathNameByHandleW) {
- SET_REQ_UV_ERROR(req, UV_ENOSYS, ERROR_NOT_SUPPORTED);
- return;
- }
-
- handle = CreateFileW(req->file.pathw,
- 0,
- 0,
- NULL,
- OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS,
- NULL);
- if (handle == INVALID_HANDLE_VALUE) {
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- if (fs__realpath_handle(handle, (char**) &req->ptr) == -1) {
- CloseHandle(handle);
- SET_REQ_WIN32_ERROR(req, GetLastError());
- return;
- }
-
- CloseHandle(handle);
- req->flags |= UV_FS_FREE_PTR;
- SET_REQ_RESULT(req, 0);
-}
-
-
-static void fs__chown(uv_fs_t* req) {
- req->result = 0;
-}
-
-
-static void fs__fchown(uv_fs_t* req) {
- req->result = 0;
-}
-
-
-static void uv__fs_work(struct uv__work* w) {
- uv_fs_t* req;
-
- req = container_of(w, uv_fs_t, work_req);
- assert(req->type == UV_FS);
-
-#define XX(uc, lc) case UV_FS_##uc: fs__##lc(req); break;
- switch (req->fs_type) {
- XX(OPEN, open)
- XX(CLOSE, close)
- XX(READ, read)
- XX(WRITE, write)
- XX(SENDFILE, sendfile)
- XX(STAT, stat)
- XX(LSTAT, lstat)
- XX(FSTAT, fstat)
- XX(FTRUNCATE, ftruncate)
- XX(UTIME, utime)
- XX(FUTIME, futime)
- XX(ACCESS, access)
- XX(CHMOD, chmod)
- XX(FCHMOD, fchmod)
- XX(FSYNC, fsync)
- XX(FDATASYNC, fdatasync)
- XX(UNLINK, unlink)
- XX(RMDIR, rmdir)
- XX(MKDIR, mkdir)
- XX(MKDTEMP, mkdtemp)
- XX(RENAME, rename)
- XX(SCANDIR, scandir)
- XX(LINK, link)
- XX(SYMLINK, symlink)
- XX(READLINK, readlink)
- XX(REALPATH, realpath)
- XX(CHOWN, chown)
- XX(FCHOWN, fchown);
- default:
- assert(!"bad uv_fs_type");
- }
-}
-
-
-static void uv__fs_done(struct uv__work* w, int status) {
- uv_fs_t* req;
-
- req = container_of(w, uv_fs_t, work_req);
- uv__req_unregister(req->loop, req);
-
- if (status == UV_ECANCELED) {
- assert(req->result == 0);
- req->result = UV_ECANCELED;
- }
-
- req->cb(req);
-}
-
-
-void uv_fs_req_cleanup(uv_fs_t* req) {
- if (req->flags & UV_FS_CLEANEDUP)
- return;
-
- if (req->flags & UV_FS_FREE_PATHS)
- uv__free(req->file.pathw);
-
- if (req->flags & UV_FS_FREE_PTR)
- uv__free(req->ptr);
-
- req->path = NULL;
- req->file.pathw = NULL;
- req->fs.info.new_pathw = NULL;
- req->ptr = NULL;
-
- req->flags |= UV_FS_CLEANEDUP;
-}
-
-
-int uv_fs_open(uv_loop_t* loop, uv_fs_t* req, const char* path, int flags,
- int mode, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_OPEN, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- req->fs.info.file_flags = flags;
- req->fs.info.mode = mode;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__open(req);
- return req->result;
- }
-}
-
-
-int uv_fs_close(uv_loop_t* loop, uv_fs_t* req, uv_file fd, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_CLOSE, cb);
- req->file.fd = fd;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__close(req);
- return req->result;
- }
-}
-
-
-int uv_fs_read(uv_loop_t* loop,
- uv_fs_t* req,
- uv_file fd,
- const uv_buf_t bufs[],
- unsigned int nbufs,
- int64_t offset,
- uv_fs_cb cb) {
- if (bufs == NULL || nbufs == 0)
- return UV_EINVAL;
-
- uv_fs_req_init(loop, req, UV_FS_READ, cb);
-
- req->file.fd = fd;
-
- req->fs.info.nbufs = nbufs;
- req->fs.info.bufs = req->fs.info.bufsml;
- if (nbufs > ARRAY_SIZE(req->fs.info.bufsml))
- req->fs.info.bufs = uv__malloc(nbufs * sizeof(*bufs));
-
- if (req->fs.info.bufs == NULL)
- return UV_ENOMEM;
-
- memcpy(req->fs.info.bufs, bufs, nbufs * sizeof(*bufs));
-
- req->fs.info.offset = offset;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__read(req);
- return req->result;
- }
-}
-
-
-int uv_fs_write(uv_loop_t* loop,
- uv_fs_t* req,
- uv_file fd,
- const uv_buf_t bufs[],
- unsigned int nbufs,
- int64_t offset,
- uv_fs_cb cb) {
- if (bufs == NULL || nbufs == 0)
- return UV_EINVAL;
-
- uv_fs_req_init(loop, req, UV_FS_WRITE, cb);
-
- req->file.fd = fd;
-
- req->fs.info.nbufs = nbufs;
- req->fs.info.bufs = req->fs.info.bufsml;
- if (nbufs > ARRAY_SIZE(req->fs.info.bufsml))
- req->fs.info.bufs = uv__malloc(nbufs * sizeof(*bufs));
-
- if (req->fs.info.bufs == NULL)
- return UV_ENOMEM;
-
- memcpy(req->fs.info.bufs, bufs, nbufs * sizeof(*bufs));
-
- req->fs.info.offset = offset;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__write(req);
- return req->result;
- }
-}
-
-
-int uv_fs_unlink(uv_loop_t* loop, uv_fs_t* req, const char* path,
- uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_UNLINK, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__unlink(req);
- return req->result;
- }
-}
-
-
-int uv_fs_mkdir(uv_loop_t* loop, uv_fs_t* req, const char* path, int mode,
- uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_MKDIR, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- req->fs.info.mode = mode;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__mkdir(req);
- return req->result;
- }
-}
-
-
-int uv_fs_mkdtemp(uv_loop_t* loop, uv_fs_t* req, const char* tpl,
- uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_MKDTEMP, cb);
-
- err = fs__capture_path(req, tpl, NULL, TRUE);
- if (err)
- return uv_translate_sys_error(err);
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__mkdtemp(req);
- return req->result;
- }
-}
-
-
-int uv_fs_rmdir(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_RMDIR, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__rmdir(req);
- return req->result;
- }
-}
-
-
-int uv_fs_scandir(uv_loop_t* loop, uv_fs_t* req, const char* path, int flags,
- uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_SCANDIR, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- req->fs.info.file_flags = flags;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__scandir(req);
- return req->result;
- }
-}
-
-
-int uv_fs_link(uv_loop_t* loop, uv_fs_t* req, const char* path,
- const char* new_path, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_LINK, cb);
-
- err = fs__capture_path(req, path, new_path, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__link(req);
- return req->result;
- }
-}
-
-
-int uv_fs_symlink(uv_loop_t* loop, uv_fs_t* req, const char* path,
- const char* new_path, int flags, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_SYMLINK, cb);
-
- err = fs__capture_path(req, path, new_path, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- req->fs.info.file_flags = flags;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__symlink(req);
- return req->result;
- }
-}
-
-
-int uv_fs_readlink(uv_loop_t* loop, uv_fs_t* req, const char* path,
- uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_READLINK, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__readlink(req);
- return req->result;
- }
-}
-
-
-int uv_fs_realpath(uv_loop_t* loop, uv_fs_t* req, const char* path,
- uv_fs_cb cb) {
- int err;
-
- if (!req || !path) {
- return UV_EINVAL;
- }
-
- uv_fs_req_init(loop, req, UV_FS_REALPATH, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__realpath(req);
- return req->result;
- }
-}
-
-
-int uv_fs_chown(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_uid_t uid,
- uv_gid_t gid, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_CHOWN, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__chown(req);
- return req->result;
- }
-}
-
-
-int uv_fs_fchown(uv_loop_t* loop, uv_fs_t* req, uv_file fd, uv_uid_t uid,
- uv_gid_t gid, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_FCHOWN, cb);
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__fchown(req);
- return req->result;
- }
-}
-
-
-int uv_fs_stat(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_STAT, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__stat(req);
- return req->result;
- }
-}
-
-
-int uv_fs_lstat(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_LSTAT, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__lstat(req);
- return req->result;
- }
-}
-
-
-int uv_fs_fstat(uv_loop_t* loop, uv_fs_t* req, uv_file fd, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_FSTAT, cb);
- req->file.fd = fd;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__fstat(req);
- return req->result;
- }
-}
-
-
-int uv_fs_rename(uv_loop_t* loop, uv_fs_t* req, const char* path,
- const char* new_path, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_RENAME, cb);
-
- err = fs__capture_path(req, path, new_path, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__rename(req);
- return req->result;
- }
-}
-
-
-int uv_fs_fsync(uv_loop_t* loop, uv_fs_t* req, uv_file fd, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_FSYNC, cb);
- req->file.fd = fd;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__fsync(req);
- return req->result;
- }
-}
-
-
-int uv_fs_fdatasync(uv_loop_t* loop, uv_fs_t* req, uv_file fd, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_FDATASYNC, cb);
- req->file.fd = fd;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__fdatasync(req);
- return req->result;
- }
-}
-
-
-int uv_fs_ftruncate(uv_loop_t* loop, uv_fs_t* req, uv_file fd,
- int64_t offset, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_FTRUNCATE, cb);
-
- req->file.fd = fd;
- req->fs.info.offset = offset;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__ftruncate(req);
- return req->result;
- }
-}
-
-
-
-int uv_fs_sendfile(uv_loop_t* loop, uv_fs_t* req, uv_file fd_out,
- uv_file fd_in, int64_t in_offset, size_t length, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_SENDFILE, cb);
-
- req->file.fd = fd_in;
- req->fs.info.fd_out = fd_out;
- req->fs.info.offset = in_offset;
- req->fs.info.bufsml[0].len = length;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__sendfile(req);
- return req->result;
- }
-}
-
-
-int uv_fs_access(uv_loop_t* loop,
- uv_fs_t* req,
- const char* path,
- int flags,
- uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_ACCESS, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err)
- return uv_translate_sys_error(err);
-
- req->flags = flags;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- }
-
- fs__access(req);
- return req->result;
-}
-
-
-int uv_fs_chmod(uv_loop_t* loop, uv_fs_t* req, const char* path, int mode,
- uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_CHMOD, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- req->fs.info.mode = mode;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__chmod(req);
- return req->result;
- }
-}
-
-
-int uv_fs_fchmod(uv_loop_t* loop, uv_fs_t* req, uv_file fd, int mode,
- uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_FCHMOD, cb);
-
- req->file.fd = fd;
- req->fs.info.mode = mode;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__fchmod(req);
- return req->result;
- }
-}
-
-
-int uv_fs_utime(uv_loop_t* loop, uv_fs_t* req, const char* path, double atime,
- double mtime, uv_fs_cb cb) {
- int err;
-
- uv_fs_req_init(loop, req, UV_FS_UTIME, cb);
-
- err = fs__capture_path(req, path, NULL, cb != NULL);
- if (err) {
- return uv_translate_sys_error(err);
- }
-
- req->fs.time.atime = atime;
- req->fs.time.mtime = mtime;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__utime(req);
- return req->result;
- }
-}
-
-
-int uv_fs_futime(uv_loop_t* loop, uv_fs_t* req, uv_file fd, double atime,
- double mtime, uv_fs_cb cb) {
- uv_fs_req_init(loop, req, UV_FS_FUTIME, cb);
-
- req->file.fd = fd;
- req->fs.time.atime = atime;
- req->fs.time.mtime = mtime;
-
- if (cb) {
- QUEUE_FS_TP_JOB(loop, req);
- return 0;
- } else {
- fs__futime(req);
- return req->result;
- }
-}