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Your IP : 18.216.156.226
/* 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.
*/
#ifndef _WIN32_WINNT
# define _WIN32_WINNT 0x0600
#endif
#if !defined(_SSIZE_T_) && !defined(_SSIZE_T_DEFINED)
typedef intptr_t ssize_t;
# define SSIZE_MAX INTPTR_MAX
# define _SSIZE_T_
# define _SSIZE_T_DEFINED
#endif
#include <winsock2.h>
#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
typedef struct pollfd {
SOCKET fd;
short events;
short revents;
} WSAPOLLFD, *PWSAPOLLFD, *LPWSAPOLLFD;
#endif
#ifndef LOCALE_INVARIANT
# define LOCALE_INVARIANT 0x007f
#endif
#include <mswsock.h>
/* Disable the typedef in mstcpip.h of MinGW. */
#define _TCP_INITIAL_RTO_PARAMETERS _TCP_INITIAL_RTO_PARAMETERS__AVOID
#define TCP_INITIAL_RTO_PARAMETERS TCP_INITIAL_RTO_PARAMETERS__AVOID
#define PTCP_INITIAL_RTO_PARAMETERS PTCP_INITIAL_RTO_PARAMETERS__AVOID
#include <ws2tcpip.h>
#undef _TCP_INITIAL_RTO_PARAMETERS
#undef TCP_INITIAL_RTO_PARAMETERS
#undef PTCP_INITIAL_RTO_PARAMETERS
#include <windows.h>
#include <process.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <stdint.h>
#include "uv/tree.h"
#include "uv/threadpool.h"
#define MAX_PIPENAME_LEN 256
#ifndef S_IFLNK
# define S_IFLNK 0xA000
#endif
/* Define missing in Windows Kit Include\{VERSION}\ucrt\sys\stat.h */
#if defined(_CRT_INTERNAL_NONSTDC_NAMES) && _CRT_INTERNAL_NONSTDC_NAMES && !defined(S_IFIFO)
# define S_IFIFO _S_IFIFO
#endif
/* Additional signals supported by uv_signal and or uv_kill. The CRT defines
* the following signals already:
*
* #define SIGINT 2
* #define SIGILL 4
* #define SIGABRT_COMPAT 6
* #define SIGFPE 8
* #define SIGSEGV 11
* #define SIGTERM 15
* #define SIGBREAK 21
* #define SIGABRT 22
*
* The additional signals have values that are common on other Unix
* variants (Linux and Darwin)
*/
#define SIGHUP 1
#define SIGQUIT 3
#define SIGKILL 9
#define SIGWINCH 28
/* Redefine NSIG to take SIGWINCH into consideration */
#if defined(NSIG) && NSIG <= SIGWINCH
# undef NSIG
#endif
#ifndef NSIG
# define NSIG SIGWINCH + 1
#endif
/* The CRT defines SIGABRT_COMPAT as 6, which equals SIGABRT on many unix-like
* platforms. However MinGW doesn't define it, so we do. */
#ifndef SIGABRT_COMPAT
# define SIGABRT_COMPAT 6
#endif
/*
* Guids and typedefs for winsock extension functions
* Mingw32 doesn't have these :-(
*/
#ifndef WSAID_ACCEPTEX
# define WSAID_ACCEPTEX \
{0xb5367df1, 0xcbac, 0x11cf, \
{0x95, 0xca, 0x00, 0x80, 0x5f, 0x48, 0xa1, 0x92}}
# define WSAID_CONNECTEX \
{0x25a207b9, 0xddf3, 0x4660, \
{0x8e, 0xe9, 0x76, 0xe5, 0x8c, 0x74, 0x06, 0x3e}}
# define WSAID_GETACCEPTEXSOCKADDRS \
{0xb5367df2, 0xcbac, 0x11cf, \
{0x95, 0xca, 0x00, 0x80, 0x5f, 0x48, 0xa1, 0x92}}
# define WSAID_DISCONNECTEX \
{0x7fda2e11, 0x8630, 0x436f, \
{0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
# define WSAID_TRANSMITFILE \
{0xb5367df0, 0xcbac, 0x11cf, \
{0x95, 0xca, 0x00, 0x80, 0x5f, 0x48, 0xa1, 0x92}}
typedef BOOL (PASCAL *LPFN_ACCEPTEX)
(SOCKET sListenSocket,
SOCKET sAcceptSocket,
PVOID lpOutputBuffer,
DWORD dwReceiveDataLength,
DWORD dwLocalAddressLength,
DWORD dwRemoteAddressLength,
LPDWORD lpdwBytesReceived,
LPOVERLAPPED lpOverlapped);
typedef BOOL (PASCAL *LPFN_CONNECTEX)
(SOCKET s,
const struct sockaddr* name,
int namelen,
PVOID lpSendBuffer,
DWORD dwSendDataLength,
LPDWORD lpdwBytesSent,
LPOVERLAPPED lpOverlapped);
typedef void (PASCAL *LPFN_GETACCEPTEXSOCKADDRS)
(PVOID lpOutputBuffer,
DWORD dwReceiveDataLength,
DWORD dwLocalAddressLength,
DWORD dwRemoteAddressLength,
LPSOCKADDR* LocalSockaddr,
LPINT LocalSockaddrLength,
LPSOCKADDR* RemoteSockaddr,
LPINT RemoteSockaddrLength);
typedef BOOL (PASCAL *LPFN_DISCONNECTEX)
(SOCKET hSocket,
LPOVERLAPPED lpOverlapped,
DWORD dwFlags,
DWORD reserved);
typedef BOOL (PASCAL *LPFN_TRANSMITFILE)
(SOCKET hSocket,
HANDLE hFile,
DWORD nNumberOfBytesToWrite,
DWORD nNumberOfBytesPerSend,
LPOVERLAPPED lpOverlapped,
LPTRANSMIT_FILE_BUFFERS lpTransmitBuffers,
DWORD dwFlags);
typedef PVOID RTL_SRWLOCK;
typedef RTL_SRWLOCK SRWLOCK, *PSRWLOCK;
#endif
typedef int (WSAAPI* LPFN_WSARECV)
(SOCKET socket,
LPWSABUF buffers,
DWORD buffer_count,
LPDWORD bytes,
LPDWORD flags,
LPWSAOVERLAPPED overlapped,
LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine);
typedef int (WSAAPI* LPFN_WSARECVFROM)
(SOCKET socket,
LPWSABUF buffers,
DWORD buffer_count,
LPDWORD bytes,
LPDWORD flags,
struct sockaddr* addr,
LPINT addr_len,
LPWSAOVERLAPPED overlapped,
LPWSAOVERLAPPED_COMPLETION_ROUTINE completion_routine);
#ifndef _NTDEF_
typedef LONG NTSTATUS;
typedef NTSTATUS *PNTSTATUS;
#endif
#ifndef RTL_CONDITION_VARIABLE_INIT
typedef PVOID CONDITION_VARIABLE, *PCONDITION_VARIABLE;
#endif
typedef struct _AFD_POLL_HANDLE_INFO {
HANDLE Handle;
ULONG Events;
NTSTATUS Status;
} AFD_POLL_HANDLE_INFO, *PAFD_POLL_HANDLE_INFO;
typedef struct _AFD_POLL_INFO {
LARGE_INTEGER Timeout;
ULONG NumberOfHandles;
ULONG Exclusive;
AFD_POLL_HANDLE_INFO Handles[1];
} AFD_POLL_INFO, *PAFD_POLL_INFO;
#define UV_MSAFD_PROVIDER_COUNT 4
/**
* It should be possible to cast uv_buf_t[] to WSABUF[]
* see http://msdn.microsoft.com/en-us/library/ms741542(v=vs.85).aspx
*/
typedef struct uv_buf_t {
ULONG len;
char* base;
} uv_buf_t;
typedef int uv_file;
typedef SOCKET uv_os_sock_t;
typedef HANDLE uv_os_fd_t;
typedef int uv_pid_t;
typedef HANDLE uv_thread_t;
typedef HANDLE uv_sem_t;
typedef CRITICAL_SECTION uv_mutex_t;
/* This condition variable implementation is based on the SetEvent solution
* (section 3.2) at http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
* We could not use the SignalObjectAndWait solution (section 3.4) because
* it want the 2nd argument (type uv_mutex_t) of uv_cond_wait() and
* uv_cond_timedwait() to be HANDLEs, but we use CRITICAL_SECTIONs.
*/
typedef union {
CONDITION_VARIABLE cond_var;
struct {
unsigned int waiters_count;
CRITICAL_SECTION waiters_count_lock;
HANDLE signal_event;
HANDLE broadcast_event;
} unused_; /* TODO: retained for ABI compatibility; remove me in v2.x. */
} uv_cond_t;
typedef struct {
SRWLOCK read_write_lock_;
/* TODO: retained for ABI compatibility; remove me in v2.x */
#ifdef _WIN64
unsigned char padding_[72];
#else
unsigned char padding_[44];
#endif
} uv_rwlock_t;
typedef struct {
unsigned threshold;
unsigned in;
uv_mutex_t mutex;
/* TODO: in v2 make this a uv_cond_t, without unused_ */
CONDITION_VARIABLE cond;
unsigned out;
} uv_barrier_t;
typedef struct {
DWORD tls_index;
} uv_key_t;
#define UV_ONCE_INIT { 0, NULL }
typedef struct uv_once_s {
unsigned char ran;
HANDLE event;
} uv_once_t;
/* Platform-specific definitions for uv_spawn support. */
typedef unsigned char uv_uid_t;
typedef unsigned char uv_gid_t;
typedef struct uv__dirent_s {
int d_type;
char d_name[1];
} uv__dirent_t;
#define UV_DIR_PRIVATE_FIELDS \
HANDLE dir_handle; \
WIN32_FIND_DATAW find_data; \
BOOL need_find_call;
#define HAVE_DIRENT_TYPES
#define UV__DT_DIR UV_DIRENT_DIR
#define UV__DT_FILE UV_DIRENT_FILE
#define UV__DT_LINK UV_DIRENT_LINK
#define UV__DT_FIFO UV_DIRENT_FIFO
#define UV__DT_SOCKET UV_DIRENT_SOCKET
#define UV__DT_CHAR UV_DIRENT_CHAR
#define UV__DT_BLOCK UV_DIRENT_BLOCK
/* Platform-specific definitions for uv_dlopen support. */
#define UV_DYNAMIC FAR WINAPI
typedef struct {
HMODULE handle;
char* errmsg;
} uv_lib_t;
#define UV_LOOP_PRIVATE_FIELDS \
/* The loop's I/O completion port */ \
HANDLE iocp; \
/* The current time according to the event loop. in msecs. */ \
uint64_t time; \
/* Tail of a single-linked circular queue of pending reqs. If the queue */ \
/* is empty, tail_ is NULL. If there is only one item, */ \
/* tail_->next_req == tail_ */ \
uv_req_t* pending_reqs_tail; \
/* Head of a single-linked list of closed handles */ \
uv_handle_t* endgame_handles; \
/* TODO(bnoordhuis) Stop heap-allocating |timer_heap| in libuv v2.x. */ \
void* timer_heap; \
/* Lists of active loop (prepare / check / idle) watchers */ \
uv_prepare_t* prepare_handles; \
uv_check_t* check_handles; \
uv_idle_t* idle_handles; \
/* This pointer will refer to the prepare/check/idle handle whose */ \
/* callback is scheduled to be called next. This is needed to allow */ \
/* safe removal from one of the lists above while that list being */ \
/* iterated over. */ \
uv_prepare_t* next_prepare_handle; \
uv_check_t* next_check_handle; \
uv_idle_t* next_idle_handle; \
/* This handle holds the peer sockets for the fast variant of uv_poll_t */ \
SOCKET poll_peer_sockets[UV_MSAFD_PROVIDER_COUNT]; \
/* No longer used. */ \
unsigned int active_tcp_streams; \
/* No longer used. */ \
unsigned int active_udp_streams; \
/* Counter to started timer */ \
uint64_t timer_counter; \
/* Threadpool */ \
struct uv__queue wq; \
uv_mutex_t wq_mutex; \
uv_async_t wq_async;
#define UV_REQ_TYPE_PRIVATE \
/* TODO: remove the req suffix */ \
UV_ACCEPT, \
UV_FS_EVENT_REQ, \
UV_POLL_REQ, \
UV_PROCESS_EXIT, \
UV_READ, \
UV_UDP_RECV, \
UV_WAKEUP, \
UV_SIGNAL_REQ,
#define UV_REQ_PRIVATE_FIELDS \
union { \
/* Used by I/O operations */ \
struct { \
OVERLAPPED overlapped; \
size_t queued_bytes; \
} io; \
/* in v2, we can move these to the UV_CONNECT_PRIVATE_FIELDS */ \
struct { \
ULONG_PTR result; /* overlapped.Internal is reused to hold the result */\
HANDLE pipeHandle; \
DWORD duplex_flags; \
WCHAR* name; \
} connect; \
} u; \
struct uv_req_s* next_req;
#define UV_WRITE_PRIVATE_FIELDS \
int coalesced; \
uv_buf_t write_buffer; \
HANDLE event_handle; \
HANDLE wait_handle;
#define UV_CONNECT_PRIVATE_FIELDS \
/* empty */
#define UV_SHUTDOWN_PRIVATE_FIELDS \
/* empty */
#define UV_UDP_SEND_PRIVATE_FIELDS \
/* empty */
#define UV_PRIVATE_REQ_TYPES \
typedef struct uv_pipe_accept_s { \
UV_REQ_FIELDS \
HANDLE pipeHandle; \
struct uv_pipe_accept_s* next_pending; \
} uv_pipe_accept_t; \
\
typedef struct uv_tcp_accept_s { \
UV_REQ_FIELDS \
SOCKET accept_socket; \
char accept_buffer[sizeof(struct sockaddr_storage) * 2 + 32]; \
HANDLE event_handle; \
HANDLE wait_handle; \
struct uv_tcp_accept_s* next_pending; \
} uv_tcp_accept_t; \
\
typedef struct uv_read_s { \
UV_REQ_FIELDS \
HANDLE event_handle; \
HANDLE wait_handle; \
} uv_read_t;
#define uv_stream_connection_fields \
unsigned int write_reqs_pending; \
uv_shutdown_t* shutdown_req;
#define uv_stream_server_fields \
uv_connection_cb connection_cb;
#define UV_STREAM_PRIVATE_FIELDS \
unsigned int reqs_pending; \
int activecnt; \
uv_read_t read_req; \
union { \
struct { uv_stream_connection_fields } conn; \
struct { uv_stream_server_fields } serv; \
} stream;
#define uv_tcp_server_fields \
uv_tcp_accept_t* accept_reqs; \
unsigned int processed_accepts; \
uv_tcp_accept_t* pending_accepts; \
LPFN_ACCEPTEX func_acceptex;
#define uv_tcp_connection_fields \
uv_buf_t read_buffer; \
LPFN_CONNECTEX func_connectex;
#define UV_TCP_PRIVATE_FIELDS \
SOCKET socket; \
int delayed_error; \
union { \
struct { uv_tcp_server_fields } serv; \
struct { uv_tcp_connection_fields } conn; \
} tcp;
#define UV_UDP_PRIVATE_FIELDS \
SOCKET socket; \
unsigned int reqs_pending; \
int activecnt; \
uv_req_t recv_req; \
uv_buf_t recv_buffer; \
struct sockaddr_storage recv_from; \
int recv_from_len; \
uv_udp_recv_cb recv_cb; \
uv_alloc_cb alloc_cb; \
LPFN_WSARECV func_wsarecv; \
LPFN_WSARECVFROM func_wsarecvfrom;
#define uv_pipe_server_fields \
int pending_instances; \
uv_pipe_accept_t* accept_reqs; \
uv_pipe_accept_t* pending_accepts;
#define uv_pipe_connection_fields \
uv_timer_t* eof_timer; \
uv_write_t dummy; /* TODO: retained for ABI compat; remove this in v2.x. */ \
DWORD ipc_remote_pid; \
union { \
uint32_t payload_remaining; \
uint64_t dummy; /* TODO: retained for ABI compat; remove this in v2.x. */ \
} ipc_data_frame; \
struct uv__queue ipc_xfer_queue; \
int ipc_xfer_queue_length; \
uv_write_t* non_overlapped_writes_tail; \
CRITICAL_SECTION readfile_thread_lock; \
volatile HANDLE readfile_thread_handle;
#define UV_PIPE_PRIVATE_FIELDS \
HANDLE handle; \
WCHAR* name; \
union { \
struct { uv_pipe_server_fields } serv; \
struct { uv_pipe_connection_fields } conn; \
} pipe;
/* TODO: put the parser states in a union - TTY handles are always half-duplex
* so read-state can safely overlap write-state. */
#define UV_TTY_PRIVATE_FIELDS \
HANDLE handle; \
union { \
struct { \
/* Used for readable TTY handles */ \
/* TODO: remove me in v2.x. */ \
HANDLE unused_; \
uv_buf_t read_line_buffer; \
HANDLE read_raw_wait; \
/* Fields used for translating win keystrokes into vt100 characters */ \
char last_key[8]; \
unsigned char last_key_offset; \
unsigned char last_key_len; \
WCHAR last_utf16_high_surrogate; \
INPUT_RECORD last_input_record; \
} rd; \
struct { \
/* Used for writable TTY handles */ \
/* utf8-to-utf16 conversion state */ \
unsigned int utf8_codepoint; \
unsigned char utf8_bytes_left; \
/* eol conversion state */ \
unsigned char previous_eol; \
/* ansi parser state */ \
unsigned short ansi_parser_state; \
unsigned char ansi_csi_argc; \
unsigned short ansi_csi_argv[4]; \
COORD saved_position; \
WORD saved_attributes; \
} wr; \
} tty;
#define UV_POLL_PRIVATE_FIELDS \
SOCKET socket; \
/* Used in fast mode */ \
SOCKET peer_socket; \
AFD_POLL_INFO afd_poll_info_1; \
AFD_POLL_INFO afd_poll_info_2; \
/* Used in fast and slow mode. */ \
uv_req_t poll_req_1; \
uv_req_t poll_req_2; \
unsigned char submitted_events_1; \
unsigned char submitted_events_2; \
unsigned char mask_events_1; \
unsigned char mask_events_2; \
unsigned char events;
#define UV_TIMER_PRIVATE_FIELDS \
union { \
void* heap[3]; \
struct uv__queue queue; \
} node; \
int unused; \
uint64_t timeout; \
uint64_t repeat; \
uint64_t start_id; \
uv_timer_cb timer_cb;
#define UV_ASYNC_PRIVATE_FIELDS \
struct uv_req_s async_req; \
uv_async_cb async_cb; \
/* char to avoid alignment issues */ \
char volatile async_sent;
#define UV_PREPARE_PRIVATE_FIELDS \
uv_prepare_t* prepare_prev; \
uv_prepare_t* prepare_next; \
uv_prepare_cb prepare_cb;
#define UV_CHECK_PRIVATE_FIELDS \
uv_check_t* check_prev; \
uv_check_t* check_next; \
uv_check_cb check_cb;
#define UV_IDLE_PRIVATE_FIELDS \
uv_idle_t* idle_prev; \
uv_idle_t* idle_next; \
uv_idle_cb idle_cb;
#define UV_HANDLE_PRIVATE_FIELDS \
uv_handle_t* endgame_next; \
unsigned int flags;
#define UV_GETADDRINFO_PRIVATE_FIELDS \
struct uv__work work_req; \
uv_getaddrinfo_cb getaddrinfo_cb; \
void* alloc; \
WCHAR* node; \
WCHAR* service; \
/* The addrinfoW field is used to store a pointer to the hints, and */ \
/* later on to store the result of GetAddrInfoW. The final result will */ \
/* be converted to struct addrinfo* and stored in the addrinfo field. */ \
struct addrinfoW* addrinfow; \
struct addrinfo* addrinfo; \
int retcode;
#define UV_GETNAMEINFO_PRIVATE_FIELDS \
struct uv__work work_req; \
uv_getnameinfo_cb getnameinfo_cb; \
struct sockaddr_storage storage; \
int flags; \
char host[NI_MAXHOST]; \
char service[NI_MAXSERV]; \
int retcode;
#define UV_PROCESS_PRIVATE_FIELDS \
struct uv_process_exit_s { \
UV_REQ_FIELDS \
} exit_req; \
void* unused; /* TODO: retained for ABI compat; remove this in v2.x. */ \
int exit_signal; \
HANDLE wait_handle; \
HANDLE process_handle; \
volatile char exit_cb_pending;
#define UV_FS_PRIVATE_FIELDS \
struct uv__work work_req; \
int flags; \
DWORD sys_errno_; \
union { \
/* TODO: remove me in 0.9. */ \
WCHAR* pathw; \
int fd; \
} file; \
union { \
struct { \
int mode; \
WCHAR* new_pathw; \
int file_flags; \
int fd_out; \
unsigned int nbufs; \
uv_buf_t* bufs; \
int64_t offset; \
uv_buf_t bufsml[4]; \
} info; \
struct { \
double atime; \
double mtime; \
} time; \
} fs;
#define UV_WORK_PRIVATE_FIELDS \
struct uv__work work_req;
#define UV_FS_EVENT_PRIVATE_FIELDS \
struct uv_fs_event_req_s { \
UV_REQ_FIELDS \
} req; \
HANDLE dir_handle; \
int req_pending; \
uv_fs_event_cb cb; \
WCHAR* filew; \
WCHAR* short_filew; \
WCHAR* dirw; \
char* buffer;
#define UV_SIGNAL_PRIVATE_FIELDS \
RB_ENTRY(uv_signal_s) tree_entry; \
struct uv_req_s signal_req; \
unsigned long pending_signum;
#ifndef F_OK
#define F_OK 0
#endif
#ifndef R_OK
#define R_OK 4
#endif
#ifndef W_OK
#define W_OK 2
#endif
#ifndef X_OK
#define X_OK 1
#endif
/* fs open() flags supported on this platform: */
#define UV_FS_O_APPEND _O_APPEND
#define UV_FS_O_CREAT _O_CREAT
#define UV_FS_O_EXCL _O_EXCL
#define UV_FS_O_FILEMAP 0x20000000
#define UV_FS_O_RANDOM _O_RANDOM
#define UV_FS_O_RDONLY _O_RDONLY
#define UV_FS_O_RDWR _O_RDWR
#define UV_FS_O_SEQUENTIAL _O_SEQUENTIAL
#define UV_FS_O_SHORT_LIVED _O_SHORT_LIVED
#define UV_FS_O_TEMPORARY _O_TEMPORARY
#define UV_FS_O_TRUNC _O_TRUNC
#define UV_FS_O_WRONLY _O_WRONLY
/* fs open() flags supported on other platforms (or mapped on this platform): */
#define UV_FS_O_DIRECT 0x02000000 /* FILE_FLAG_NO_BUFFERING */
#define UV_FS_O_DIRECTORY 0
#define UV_FS_O_DSYNC 0x04000000 /* FILE_FLAG_WRITE_THROUGH */
#define UV_FS_O_EXLOCK 0x10000000 /* EXCLUSIVE SHARING MODE */
#define UV_FS_O_NOATIME 0
#define UV_FS_O_NOCTTY 0
#define UV_FS_O_NOFOLLOW 0
#define UV_FS_O_NONBLOCK 0
#define UV_FS_O_SYMLINK 0
#define UV_FS_O_SYNC 0x08000000 /* FILE_FLAG_WRITE_THROUGH */