diff options
Diffstat (limited to 'third-party/libuv/src/win/fs.c')
| -rw-r--r-- | third-party/libuv/src/win/fs.c | 2043 |
1 files changed, 2043 insertions, 0 deletions
diff --git a/third-party/libuv/src/win/fs.c b/third-party/libuv/src/win/fs.c new file mode 100644 index 0000000000..c4182758c7 --- /dev/null +++ b/third-party/libuv/src/win/fs.c @@ -0,0 +1,2043 @@ +/* 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 <malloc.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" + + +#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 { \ + if (!QueueUserWorkItem(&uv_fs_thread_proc, \ + req, \ + WT_EXECUTEDEFAULT)) { \ + return uv_translate_sys_error(GetLastError()); \ + } \ + uv__req_register(loop, req); \ + } 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*) (filetime_ptr) = ((int64_t) (time) * 10000000LL) + \ + 116444736000000000ULL; \ + } 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; + + +void uv_fs_init() { + _fmode = _O_BINARY; +} + + +INLINE static int fs__capture_path(uv_loop_t* loop, 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, new_pathw_len; + + /* 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->pathw = NULL; + req->new_pathw = NULL; + req->path = NULL; + return 0; + } + + buf = (char*) 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 == pathw_len); + req->pathw = (WCHAR*) pos; + pos += r * sizeof(WCHAR); + } else { + req->pathw = NULL; + } + + if (new_path != NULL) { + DWORD r = MultiByteToWideChar(CP_UTF8, + 0, + new_path, + -1, + (WCHAR*) pos, + new_pathw_len); + assert(r == new_pathw_len); + req->new_pathw = (WCHAR*) pos; + pos += r * sizeof(WCHAR); + } else { + req->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; + + if (cb != NULL) { + req->cb = cb; + memset(&req->overlapped, 0, sizeof(req->overlapped)); + } +} + + +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; + char* target; + int 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; + } + + /* If needed, compute the length of the target. */ + if (target_ptr != NULL || target_len_ptr != NULL) { + /* Compute the length of the target. */ + target_len = WideCharToMultiByte(CP_UTF8, + 0, + w_target, + w_target_len, + NULL, + 0, + NULL, + NULL); + if (target_len == 0) { + return -1; + } + } + + /* If requested, allocate memory and convert to UTF8. */ + if (target_ptr != NULL) { + int r; + target = (char*) malloc(target_len + 1); + if (target == NULL) { + SetLastError(ERROR_OUTOFMEMORY); + return -1; + } + + r = WideCharToMultiByte(CP_UTF8, + 0, + w_target, + w_target_len, + target, + target_len, + NULL, + NULL); + assert(r == target_len); + target[target_len] = '\0'; + + *target_ptr = target; + } + + if (target_len_ptr != NULL) { + *target_len_ptr = target_len; + } + + return 0; +} + + +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->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->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->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); + 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->fd; + int result; + + VERIFY_FD(fd, req); + + result = _close(fd); + SET_REQ_RESULT(req, result); +} + + +void fs__read(uv_fs_t* req) { + int fd = req->fd; + size_t length = req->length; + int64_t offset = req->offset; + HANDLE handle; + OVERLAPPED overlapped, *overlapped_ptr; + LARGE_INTEGER offset_; + DWORD bytes; + DWORD error; + + VERIFY_FD(fd, req); + + handle = uv__get_osfhandle(fd); + + if (handle == INVALID_HANDLE_VALUE) { + SET_REQ_WIN32_ERROR(req, ERROR_INVALID_HANDLE); + return; + } + + if (length > INT_MAX) { + SET_REQ_WIN32_ERROR(req, ERROR_INSUFFICIENT_BUFFER); + return; + } + + if (offset != -1) { + memset(&overlapped, 0, sizeof overlapped); + + offset_.QuadPart = offset; + overlapped.Offset = offset_.LowPart; + overlapped.OffsetHigh = offset_.HighPart; + + overlapped_ptr = &overlapped; + } else { + overlapped_ptr = NULL; + } + + if (ReadFile(handle, req->buf, req->length, &bytes, overlapped_ptr)) { + 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->fd; + size_t length = req->length; + int64_t offset = req->offset; + HANDLE handle; + OVERLAPPED overlapped, *overlapped_ptr; + LARGE_INTEGER offset_; + DWORD bytes; + + VERIFY_FD(fd, req); + + handle = uv__get_osfhandle(fd); + if (handle == INVALID_HANDLE_VALUE) { + SET_REQ_WIN32_ERROR(req, ERROR_INVALID_HANDLE); + return; + } + + if (length > INT_MAX) { + SET_REQ_WIN32_ERROR(req, ERROR_INSUFFICIENT_BUFFER); + return; + } + + if (offset != -1) { + memset(&overlapped, 0, sizeof overlapped); + + offset_.QuadPart = offset; + overlapped.Offset = offset_.LowPart; + overlapped.OffsetHigh = offset_.HighPart; + + overlapped_ptr = &overlapped; + } else { + overlapped_ptr = NULL; + } + + if (WriteFile(handle, req->buf, length, &bytes, overlapped_ptr)) { + SET_REQ_RESULT(req, bytes); + } else { + SET_REQ_WIN32_ERROR(req, GetLastError()); + } +} + + +void fs__rmdir(uv_fs_t* req) { + int result = _wrmdir(req->pathw); + SET_REQ_RESULT(req, result); +} + + +void fs__unlink(uv_fs_t* req) { + const WCHAR* pathw = req->pathw; + HANDLE handle; + BY_HANDLE_FILE_INFORMATION info; + FILE_DISPOSITION_INFORMATION disposition; + IO_STATUS_BLOCK iosb; + NTSTATUS status; + + handle = CreateFileW(pathw, + FILE_READ_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; + } + } + + /* 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->pathw); + SET_REQ_RESULT(req, result); +} + + +void fs__readdir(uv_fs_t* req) { + WCHAR* pathw = req->pathw; + size_t len = wcslen(pathw); + int result, size; + WCHAR* buf = NULL, *ptr, *name; + HANDLE dir; + WIN32_FIND_DATAW ent = { 0 }; + size_t buf_char_len = 4096; + WCHAR* path2; + const WCHAR* fmt; + + if (len == 0) { + fmt = L"./*"; + } else if (pathw[len - 1] == L'/' || pathw[len - 1] == L'\\') { + fmt = L"%s*"; + } else { + fmt = L"%s\\*"; + } + + /* Figure out whether path is a file or a directory. */ + if (!(GetFileAttributesW(pathw) & FILE_ATTRIBUTE_DIRECTORY)) { + req->result = UV_ENOTDIR; + req->sys_errno_ = ERROR_SUCCESS; + return; + } + + path2 = (WCHAR*)malloc(sizeof(WCHAR) * (len + 4)); + if (!path2) { + uv_fatal_error(ERROR_OUTOFMEMORY, "malloc"); + } + + _snwprintf(path2, len + 3, fmt, pathw); + dir = FindFirstFileW(path2, &ent); + free(path2); + + if(dir == INVALID_HANDLE_VALUE) { + SET_REQ_WIN32_ERROR(req, GetLastError()); + return; + } + + result = 0; + + do { + name = ent.cFileName; + + if (name[0] != L'.' || (name[1] && (name[1] != L'.' || name[2]))) { + len = wcslen(name); + + if (!buf) { + buf = (WCHAR*)malloc(buf_char_len * sizeof(WCHAR)); + if (!buf) { + uv_fatal_error(ERROR_OUTOFMEMORY, "malloc"); + } + + ptr = buf; + } + + while ((ptr - buf) + len + 1 > buf_char_len) { + buf_char_len *= 2; + path2 = buf; + buf = (WCHAR*)realloc(buf, buf_char_len * sizeof(WCHAR)); + if (!buf) { + uv_fatal_error(ERROR_OUTOFMEMORY, "realloc"); + } + + ptr = buf + (ptr - path2); + } + + wcscpy(ptr, name); + ptr += len + 1; + result++; + } + } while(FindNextFileW(dir, &ent)); + + FindClose(dir); + + if (buf) { + /* Convert result to UTF8. */ + size = uv_utf16_to_utf8(buf, buf_char_len, NULL, 0); + if (!size) { + SET_REQ_WIN32_ERROR(req, GetLastError()); + return; + } + + req->ptr = (char*)malloc(size + 1); + if (!req->ptr) { + uv_fatal_error(ERROR_OUTOFMEMORY, "malloc"); + } + + size = uv_utf16_to_utf8(buf, buf_char_len, (char*)req->ptr, size); + if (!size) { + free(buf); + free(req->ptr); + req->ptr = NULL; + SET_REQ_WIN32_ERROR(req, GetLastError()); + return; + } + free(buf); + + ((char*)req->ptr)[size] = '\0'; + req->flags |= UV_FS_FREE_PTR; + } else { + req->ptr = NULL; + } + + SET_REQ_RESULT(req, result); +} + + +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 (NT_ERROR(nt_status)) { + SetLastError(pRtlNtStatusToDosError(nt_status)); + return -1; + } + + /* 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 deleteion, 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 slighty 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; + + statbuf->st_dev = volume_info.VolumeSerialNumber; + + /* 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->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->pathw); + fs__stat_impl(req, 0); +} + + +static void fs__lstat(uv_fs_t* req) { + fs__stat_prepare_path(req->pathw); + fs__stat_impl(req, 1); +} + + +static void fs__fstat(uv_fs_t* req) { + int fd = req->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->pathw, req->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->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->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->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->fd, fd_out = req->fd_out; + size_t length = req->length; + int64_t offset = req->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*) malloc(buf_size); + if (!buf) { + uv_fatal_error(ERROR_OUTOFMEMORY, "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; + } + } + + free(buf); + + SET_REQ_RESULT(req, result); +} + + +static void fs__chmod(uv_fs_t* req) { + int result = _wchmod(req->pathw, req->mode); + SET_REQ_RESULT(req, result); +} + + +static void fs__fchmod(uv_fs_t* req) { + int fd = req->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->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->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->atime, req->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->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->atime, req->mtime) != 0) { + SET_REQ_WIN32_ERROR(req, GetLastError()); + return; + } + + req->result = 0; +} + + +static void fs__link(uv_fs_t* req) { + DWORD r = CreateHardLinkW(req->new_pathw, req->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*)malloc(needed_buf_size); + if (!buffer) { + uv_fatal_error(ERROR_OUTOFMEMORY, "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_ALL, + 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); + free(buffer); + + SET_REQ_RESULT(req, 0); + return; + +error: + 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->pathw; + WCHAR* new_pathw = req->new_pathw; + int flags = req->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->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 void fs__chown(uv_fs_t* req) { + req->result = 0; +} + + +static void fs__fchown(uv_fs_t* req) { + req->result = 0; +} + + +static DWORD WINAPI uv_fs_thread_proc(void* parameter) { + uv_fs_t* req = (uv_fs_t*) parameter; + uv_loop_t* loop = req->loop; + + assert(req != NULL); + 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(CHMOD, chmod) + XX(FCHMOD, fchmod) + XX(FSYNC, fsync) + XX(FDATASYNC, fdatasync) + XX(UNLINK, unlink) + XX(RMDIR, rmdir) + XX(MKDIR, mkdir) + XX(RENAME, rename) + XX(READDIR, readdir) + XX(LINK, link) + XX(SYMLINK, symlink) + XX(READLINK, readlink) + XX(CHOWN, chown) + XX(FCHOWN, fchown); + default: + assert(!"bad uv_fs_type"); + } + + POST_COMPLETION_FOR_REQ(loop, req); + return 0; +} + + +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(loop, req, path, NULL, cb != NULL); + if (err) { + return uv_translate_sys_error(err); + } + + req->file_flags = flags; + req->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->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, void* buf, + size_t length, int64_t offset, uv_fs_cb cb) { + uv_fs_req_init(loop, req, UV_FS_READ, cb); + + req->fd = fd; + req->buf = buf; + req->length = length; + req->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 void* buf, + size_t length, int64_t offset, uv_fs_cb cb) { + uv_fs_req_init(loop, req, UV_FS_WRITE, cb); + + req->fd = fd; + req->buf = (void*) buf; + req->length = length; + req->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(loop, 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(loop, req, path, NULL, cb != NULL); + if (err) { + return uv_translate_sys_error(err); + } + + req->mode = mode; + + if (cb) { + QUEUE_FS_TP_JOB(loop, req); + return 0; + } else { + fs__mkdir(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(loop, 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_readdir(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_READDIR, cb); + + err = fs__capture_path(loop, req, path, NULL, cb != NULL); + if (err) { + return uv_translate_sys_error(err); + } + + req->file_flags = flags; + + if (cb) { + QUEUE_FS_TP_JOB(loop, req); + return 0; + } else { + fs__readdir(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(loop, 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(loop, req, path, new_path, cb != NULL); + if (err) { + return uv_translate_sys_error(err); + } + + req->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(loop, 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_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(loop, 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(loop, 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(loop, 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->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(loop, 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->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->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->fd = fd; + req->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->fd = fd_in; + req->fd_out = fd_out; + req->offset = in_offset; + req->length = length; + + if (cb) { + QUEUE_FS_TP_JOB(loop, req); + return 0; + } else { + fs__sendfile(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(loop, req, path, NULL, cb != NULL); + if (err) { + return uv_translate_sys_error(err); + } + + req->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->fd = fd; + req->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(loop, req, path, NULL, cb != NULL); + if (err) { + return uv_translate_sys_error(err); + } + + req->atime = atime; + req->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->fd = fd; + req->atime = atime; + req->mtime = mtime; + + if (cb) { + QUEUE_FS_TP_JOB(loop, req); + return 0; + } else { + fs__futime(req); + return req->result; + } +} + + +void uv_process_fs_req(uv_loop_t* loop, uv_fs_t* req) { + assert(req->cb); + uv__req_unregister(loop, req); + 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) + free(req->pathw); + + if (req->flags & UV_FS_FREE_PTR) + free(req->ptr); + + req->path = NULL; + req->pathw = NULL; + req->new_pathw = NULL; + req->ptr = NULL; + + req->flags |= UV_FS_CLEANEDUP; +} + |