Update for latest nightly 2018-06-09 (#70)

* Update for latest nightly 2018-06-09
* We now have a proper horizon os and sys modules in libstd

1 files changed, 1254 insertions, 0 deletions

diff --git a/ctr-std/src/sys/windows/c.rs b/ctr-std/src/sys/windows/c.rs
new file mode 100644
index 0000000..6d929f2
--- /dev/null
+++ b/ctr-std/src/sys/windows/c.rs
@@ -0,0 +1,1254 @@
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! C definitions used by libnative that don't belong in liblibc
+
+#![allow(bad_style)]
+#![cfg_attr(test, allow(dead_code))]
+#![unstable(issue = "0", feature = "windows_c")]
+
+use os::raw::{c_int, c_uint, c_ulong, c_long, c_longlong, c_ushort, c_char};
+#[cfg(target_arch = "x86_64")]
+use os::raw::c_ulonglong;
+use libc::{wchar_t, size_t, c_void};
+use ptr;
+
+pub use self::FILE_INFO_BY_HANDLE_CLASS::*;
+pub use self::EXCEPTION_DISPOSITION::*;
+
+pub type DWORD = c_ulong;
+pub type HANDLE = LPVOID;
+pub type HINSTANCE = HANDLE;
+pub type HMODULE = HINSTANCE;
+pub type HRESULT = LONG;
+pub type BOOL = c_int;
+pub type BYTE = u8;
+pub type BOOLEAN = BYTE;
+pub type GROUP = c_uint;
+pub type LARGE_INTEGER = c_longlong;
+pub type LONG = c_long;
+pub type UINT = c_uint;
+pub type WCHAR = u16;
+pub type USHORT = c_ushort;
+pub type SIZE_T = usize;
+pub type WORD = u16;
+pub type CHAR = c_char;
+pub type ULONG_PTR = usize;
+pub type ULONG = c_ulong;
+#[cfg(target_arch = "x86_64")]
+pub type ULONGLONG = u64;
+#[cfg(target_arch = "x86_64")]
+pub type DWORDLONG = ULONGLONG;
+
+pub type LPBOOL = *mut BOOL;
+pub type LPBYTE = *mut BYTE;
+pub type LPBY_HANDLE_FILE_INFORMATION = *mut BY_HANDLE_FILE_INFORMATION;
+pub type LPCSTR = *const CHAR;
+pub type LPCVOID = *const c_void;
+pub type LPCWSTR = *const WCHAR;
+pub type LPDWORD = *mut DWORD;
+pub type LPHANDLE = *mut HANDLE;
+pub type LPOVERLAPPED = *mut OVERLAPPED;
+pub type LPPROCESS_INFORMATION = *mut PROCESS_INFORMATION;
+pub type LPSECURITY_ATTRIBUTES = *mut SECURITY_ATTRIBUTES;
+pub type LPSTARTUPINFO = *mut STARTUPINFO;
+pub type LPVOID = *mut c_void;
+pub type LPWCH = *mut WCHAR;
+pub type LPWIN32_FIND_DATAW = *mut WIN32_FIND_DATAW;
+pub type LPWSADATA = *mut WSADATA;
+pub type LPWSAPROTOCOL_INFO = *mut WSAPROTOCOL_INFO;
+pub type LPSTR = *mut CHAR;
+pub type LPWSTR = *mut WCHAR;
+pub type LPFILETIME = *mut FILETIME;
+
+pub type PCONDITION_VARIABLE = *mut CONDITION_VARIABLE;
+pub type PLARGE_INTEGER = *mut c_longlong;
+pub type PSRWLOCK = *mut SRWLOCK;
+
+pub type SOCKET = ::os::windows::raw::SOCKET;
+pub type socklen_t = c_int;
+pub type ADDRESS_FAMILY = USHORT;
+
+pub const TRUE: BOOL = 1;
+pub const FALSE: BOOL = 0;
+
+pub const FILE_ATTRIBUTE_READONLY: DWORD = 0x1;
+pub const FILE_ATTRIBUTE_DIRECTORY: DWORD = 0x10;
+pub const FILE_ATTRIBUTE_REPARSE_POINT: DWORD = 0x400;
+
+pub const FILE_SHARE_DELETE: DWORD = 0x4;
+pub const FILE_SHARE_READ: DWORD = 0x1;
+pub const FILE_SHARE_WRITE: DWORD = 0x2;
+
+pub const CREATE_ALWAYS: DWORD = 2;
+pub const CREATE_NEW: DWORD = 1;
+pub const OPEN_ALWAYS: DWORD = 4;
+pub const OPEN_EXISTING: DWORD = 3;
+pub const TRUNCATE_EXISTING: DWORD = 5;
+
+pub const FILE_WRITE_DATA: DWORD = 0x00000002;
+pub const FILE_APPEND_DATA: DWORD = 0x00000004;
+pub const FILE_WRITE_EA: DWORD = 0x00000010;
+pub const FILE_WRITE_ATTRIBUTES: DWORD = 0x00000100;
+pub const READ_CONTROL: DWORD = 0x00020000;
+pub const SYNCHRONIZE: DWORD = 0x00100000;
+pub const GENERIC_READ: DWORD = 0x80000000;
+pub const GENERIC_WRITE: DWORD = 0x40000000;
+pub const STANDARD_RIGHTS_WRITE: DWORD = READ_CONTROL;
+pub const FILE_GENERIC_WRITE: DWORD = STANDARD_RIGHTS_WRITE | FILE_WRITE_DATA |
+                                      FILE_WRITE_ATTRIBUTES |
+                                      FILE_WRITE_EA |
+                                      FILE_APPEND_DATA |
+                                      SYNCHRONIZE;
+
+pub const FILE_FLAG_OPEN_REPARSE_POINT: DWORD = 0x00200000;
+pub const FILE_FLAG_BACKUP_SEMANTICS: DWORD = 0x02000000;
+pub const SECURITY_SQOS_PRESENT: DWORD = 0x00100000;
+
+pub const FIONBIO: c_ulong = 0x8004667e;
+
+#[repr(C)]
+#[derive(Copy)]
+pub struct WIN32_FIND_DATAW {
+    pub dwFileAttributes: DWORD,
+    pub ftCreationTime: FILETIME,
+    pub ftLastAccessTime: FILETIME,
+    pub ftLastWriteTime: FILETIME,
+    pub nFileSizeHigh: DWORD,
+    pub nFileSizeLow: DWORD,
+    pub dwReserved0: DWORD,
+    pub dwReserved1: DWORD,
+    pub cFileName: [wchar_t; 260], // #define MAX_PATH 260
+    pub cAlternateFileName: [wchar_t; 14],
+}
+impl Clone for WIN32_FIND_DATAW {
+    fn clone(&self) -> Self { *self }
+}
+
+pub const WSA_FLAG_OVERLAPPED: DWORD = 0x01;
+
+pub const WSADESCRIPTION_LEN: usize = 256;
+pub const WSASYS_STATUS_LEN: usize = 128;
+pub const WSAPROTOCOL_LEN: DWORD = 255;
+pub const INVALID_SOCKET: SOCKET = !0;
+
+pub const WSAEACCES: c_int = 10013;
+pub const WSAEINVAL: c_int = 10022;
+pub const WSAEWOULDBLOCK: c_int = 10035;
+pub const WSAEADDRINUSE: c_int = 10048;
+pub const WSAEADDRNOTAVAIL: c_int = 10049;
+pub const WSAECONNABORTED: c_int = 10053;
+pub const WSAECONNRESET: c_int = 10054;
+pub const WSAENOTCONN: c_int = 10057;
+pub const WSAESHUTDOWN: c_int = 10058;
+pub const WSAETIMEDOUT: c_int = 10060;
+pub const WSAECONNREFUSED: c_int = 10061;
+
+pub const MAX_PROTOCOL_CHAIN: DWORD = 7;
+
+pub const TOKEN_READ: DWORD = 0x20008;
+pub const MAXIMUM_REPARSE_DATA_BUFFER_SIZE: usize = 16 * 1024;
+pub const FSCTL_GET_REPARSE_POINT: DWORD = 0x900a8;
+pub const IO_REPARSE_TAG_SYMLINK: DWORD = 0xa000000c;
+pub const IO_REPARSE_TAG_MOUNT_POINT: DWORD = 0xa0000003;
+pub const SYMLINK_FLAG_RELATIVE: DWORD = 0x00000001;
+pub const FSCTL_SET_REPARSE_POINT: DWORD = 0x900a4;
+
+pub const SYMBOLIC_LINK_FLAG_DIRECTORY: DWORD = 0x1;
+pub const SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE: DWORD = 0x2;
+
+// Note that these are not actually HANDLEs, just values to pass to GetStdHandle
+pub const STD_INPUT_HANDLE: DWORD = -10i32 as DWORD;
+pub const STD_OUTPUT_HANDLE: DWORD = -11i32 as DWORD;
+pub const STD_ERROR_HANDLE: DWORD = -12i32 as DWORD;
+
+pub const HANDLE_FLAG_INHERIT: DWORD = 0x00000001;
+
+pub const PROGRESS_CONTINUE: DWORD = 0;
+
+pub const ERROR_FILE_NOT_FOUND: DWORD = 2;
+pub const ERROR_PATH_NOT_FOUND: DWORD = 3;
+pub const ERROR_ACCESS_DENIED: DWORD = 5;
+pub const ERROR_INVALID_HANDLE: DWORD = 6;
+pub const ERROR_NO_MORE_FILES: DWORD = 18;
+pub const ERROR_HANDLE_EOF: DWORD = 38;
+pub const ERROR_FILE_EXISTS: DWORD = 80;
+pub const ERROR_INVALID_PARAMETER: DWORD = 87;
+pub const ERROR_BROKEN_PIPE: DWORD = 109;
+pub const ERROR_CALL_NOT_IMPLEMENTED: DWORD = 120;
+pub const ERROR_INSUFFICIENT_BUFFER: DWORD = 122;
+pub const ERROR_ALREADY_EXISTS: DWORD = 183;
+pub const ERROR_NO_DATA: DWORD = 232;
+pub const ERROR_ENVVAR_NOT_FOUND: DWORD = 203;
+pub const ERROR_OPERATION_ABORTED: DWORD = 995;
+pub const ERROR_IO_PENDING: DWORD = 997;
+pub const ERROR_TIMEOUT: DWORD = 0x5B4;
+
+pub const E_NOTIMPL: HRESULT = 0x80004001u32 as HRESULT;
+
+pub const INVALID_HANDLE_VALUE: HANDLE = !0 as HANDLE;
+
+pub const FACILITY_NT_BIT: DWORD = 0x1000_0000;
+
+pub const FORMAT_MESSAGE_FROM_SYSTEM: DWORD = 0x00001000;
+pub const FORMAT_MESSAGE_FROM_HMODULE: DWORD = 0x00000800;
+pub const FORMAT_MESSAGE_IGNORE_INSERTS: DWORD = 0x00000200;
+
+pub const TLS_OUT_OF_INDEXES: DWORD = 0xFFFFFFFF;
+
+pub const DLL_THREAD_DETACH: DWORD = 3;
+pub const DLL_PROCESS_DETACH: DWORD = 0;
+
+pub const INFINITE: DWORD = !0;
+
+pub const DUPLICATE_SAME_ACCESS: DWORD = 0x00000002;
+
+pub const CONDITION_VARIABLE_INIT: CONDITION_VARIABLE = CONDITION_VARIABLE {
+    ptr: ptr::null_mut(),
+};
+pub const SRWLOCK_INIT: SRWLOCK = SRWLOCK { ptr: ptr::null_mut() };
+
+pub const DETACHED_PROCESS: DWORD = 0x00000008;
+pub const CREATE_NEW_PROCESS_GROUP: DWORD = 0x00000200;
+pub const CREATE_UNICODE_ENVIRONMENT: DWORD = 0x00000400;
+pub const STARTF_USESTDHANDLES: DWORD = 0x00000100;
+
+pub const AF_INET: c_int = 2;
+pub const AF_INET6: c_int = 23;
+pub const SD_BOTH: c_int = 2;
+pub const SD_RECEIVE: c_int = 0;
+pub const SD_SEND: c_int = 1;
+pub const SOCK_DGRAM: c_int = 2;
+pub const SOCK_STREAM: c_int = 1;
+pub const SOL_SOCKET: c_int = 0xffff;
+pub const SO_RCVTIMEO: c_int = 0x1006;
+pub const SO_SNDTIMEO: c_int = 0x1005;
+pub const SO_REUSEADDR: c_int = 0x0004;
+pub const IPPROTO_IP: c_int = 0;
+pub const IPPROTO_TCP: c_int = 6;
+pub const IPPROTO_IPV6: c_int = 41;
+pub const TCP_NODELAY: c_int = 0x0001;
+pub const IP_TTL: c_int = 4;
+pub const IPV6_V6ONLY: c_int = 27;
+pub const SO_ERROR: c_int = 0x1007;
+pub const SO_BROADCAST: c_int = 0x0020;
+pub const IP_MULTICAST_LOOP: c_int = 11;
+pub const IPV6_MULTICAST_LOOP: c_int = 11;
+pub const IP_MULTICAST_TTL: c_int = 10;
+pub const IP_ADD_MEMBERSHIP: c_int = 12;
+pub const IP_DROP_MEMBERSHIP: c_int = 13;
+pub const IPV6_ADD_MEMBERSHIP: c_int = 12;
+pub const IPV6_DROP_MEMBERSHIP: c_int = 13;
+pub const MSG_PEEK: c_int = 0x2;
+
+#[repr(C)]
+pub struct ip_mreq {
+    pub imr_multiaddr: in_addr,
+    pub imr_interface: in_addr,
+}
+
+#[repr(C)]
+pub struct ipv6_mreq {
+    pub ipv6mr_multiaddr: in6_addr,
+    pub ipv6mr_interface: c_uint,
+}
+
+pub const VOLUME_NAME_DOS: DWORD = 0x0;
+pub const MOVEFILE_REPLACE_EXISTING: DWORD = 1;
+
+pub const FILE_BEGIN: DWORD = 0;
+pub const FILE_CURRENT: DWORD = 1;
+pub const FILE_END: DWORD = 2;
+
+pub const WAIT_OBJECT_0: DWORD = 0x00000000;
+pub const WAIT_TIMEOUT: DWORD = 258;
+pub const WAIT_FAILED: DWORD = 0xFFFFFFFF;
+
+#[cfg(target_env = "msvc")]
+#[cfg(feature = "backtrace")]
+pub const MAX_SYM_NAME: usize = 2000;
+#[cfg(target_arch = "x86")]
+#[cfg(feature = "backtrace")]
+pub const IMAGE_FILE_MACHINE_I386: DWORD = 0x014c;
+#[cfg(target_arch = "x86_64")]
+#[cfg(feature = "backtrace")]
+pub const IMAGE_FILE_MACHINE_AMD64: DWORD = 0x8664;
+
+pub const EXCEPTION_CONTINUE_SEARCH: LONG = 0;
+pub const EXCEPTION_STACK_OVERFLOW: DWORD = 0xc00000fd;
+pub const EXCEPTION_MAXIMUM_PARAMETERS: usize = 15;
+
+pub const PIPE_ACCESS_INBOUND: DWORD = 0x00000001;
+pub const PIPE_ACCESS_OUTBOUND: DWORD = 0x00000002;
+pub const FILE_FLAG_FIRST_PIPE_INSTANCE: DWORD = 0x00080000;
+pub const FILE_FLAG_OVERLAPPED: DWORD = 0x40000000;
+pub const PIPE_WAIT: DWORD = 0x00000000;
+pub const PIPE_TYPE_BYTE: DWORD = 0x00000000;
+pub const PIPE_REJECT_REMOTE_CLIENTS: DWORD = 0x00000008;
+pub const PIPE_READMODE_BYTE: DWORD = 0x00000000;
+
+pub const FD_SETSIZE: usize = 64;
+
+#[repr(C)]
+#[cfg(not(target_pointer_width = "64"))]
+pub struct WSADATA {
+    pub wVersion: WORD,
+    pub wHighVersion: WORD,
+    pub szDescription: [u8; WSADESCRIPTION_LEN + 1],
+    pub szSystemStatus: [u8; WSASYS_STATUS_LEN + 1],
+    pub iMaxSockets: u16,
+    pub iMaxUdpDg: u16,
+    pub lpVendorInfo: *mut u8,
+}
+#[repr(C)]
+#[cfg(target_pointer_width = "64")]
+pub struct WSADATA {
+    pub wVersion: WORD,
+    pub wHighVersion: WORD,
+    pub iMaxSockets: u16,
+    pub iMaxUdpDg: u16,
+    pub lpVendorInfo: *mut u8,
+    pub szDescription: [u8; WSADESCRIPTION_LEN + 1],
+    pub szSystemStatus: [u8; WSASYS_STATUS_LEN + 1],
+}
+
+#[repr(C)]
+pub struct WSAPROTOCOL_INFO {
+    pub dwServiceFlags1: DWORD,
+    pub dwServiceFlags2: DWORD,
+    pub dwServiceFlags3: DWORD,
+    pub dwServiceFlags4: DWORD,
+    pub dwProviderFlags: DWORD,
+    pub ProviderId: GUID,
+    pub dwCatalogEntryId: DWORD,
+    pub ProtocolChain: WSAPROTOCOLCHAIN,
+    pub iVersion: c_int,
+    pub iAddressFamily: c_int,
+    pub iMaxSockAddr: c_int,
+    pub iMinSockAddr: c_int,
+    pub iSocketType: c_int,
+    pub iProtocol: c_int,
+    pub iProtocolMaxOffset: c_int,
+    pub iNetworkByteOrder: c_int,
+    pub iSecurityScheme: c_int,
+    pub dwMessageSize: DWORD,
+    pub dwProviderReserved: DWORD,
+    pub szProtocol: [u16; (WSAPROTOCOL_LEN as usize) + 1],
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct WIN32_FILE_ATTRIBUTE_DATA {
+    pub dwFileAttributes: DWORD,
+    pub ftCreationTime: FILETIME,
+    pub ftLastAccessTime: FILETIME,
+    pub ftLastWriteTime: FILETIME,
+    pub nFileSizeHigh: DWORD,
+    pub nFileSizeLow: DWORD,
+}
+
+#[repr(C)]
+pub struct BY_HANDLE_FILE_INFORMATION {
+    pub dwFileAttributes: DWORD,
+    pub ftCreationTime: FILETIME,
+    pub ftLastAccessTime: FILETIME,
+    pub ftLastWriteTime: FILETIME,
+    pub dwVolumeSerialNumber: DWORD,
+    pub nFileSizeHigh: DWORD,
+    pub nFileSizeLow: DWORD,
+    pub nNumberOfLinks: DWORD,
+    pub nFileIndexHigh: DWORD,
+    pub nFileIndexLow: DWORD,
+}
+
+#[repr(C)]
+#[allow(dead_code)] // we only use some variants
+pub enum FILE_INFO_BY_HANDLE_CLASS {
+    FileBasicInfo                   = 0,
+    FileStandardInfo                = 1,
+    FileNameInfo                    = 2,
+    FileRenameInfo                  = 3,
+    FileDispositionInfo             = 4,
+    FileAllocationInfo              = 5,
+    FileEndOfFileInfo               = 6,
+    FileStreamInfo                  = 7,
+    FileCompressionInfo             = 8,
+    FileAttributeTagInfo            = 9,
+    FileIdBothDirectoryInfo         = 10, // 0xA
+    FileIdBothDirectoryRestartInfo  = 11, // 0xB
+    FileIoPriorityHintInfo          = 12, // 0xC
+    FileRemoteProtocolInfo          = 13, // 0xD
+    FileFullDirectoryInfo           = 14, // 0xE
+    FileFullDirectoryRestartInfo    = 15, // 0xF
+    FileStorageInfo                 = 16, // 0x10
+    FileAlignmentInfo               = 17, // 0x11
+    FileIdInfo                      = 18, // 0x12
+    FileIdExtdDirectoryInfo         = 19, // 0x13
+    FileIdExtdDirectoryRestartInfo  = 20, // 0x14
+    MaximumFileInfoByHandlesClass
+}
+
+#[repr(C)]
+pub struct FILE_BASIC_INFO {
+    pub CreationTime: LARGE_INTEGER,
+    pub LastAccessTime: LARGE_INTEGER,
+    pub LastWriteTime: LARGE_INTEGER,
+    pub ChangeTime: LARGE_INTEGER,
+    pub FileAttributes: DWORD,
+}
+
+#[repr(C)]
+pub struct FILE_END_OF_FILE_INFO {
+    pub EndOfFile: LARGE_INTEGER,
+}
+
+#[repr(C)]
+pub struct REPARSE_DATA_BUFFER {
+    pub ReparseTag: c_uint,
+    pub ReparseDataLength: c_ushort,
+    pub Reserved: c_ushort,
+    pub rest: (),
+}
+
+#[repr(C)]
+pub struct SYMBOLIC_LINK_REPARSE_BUFFER {
+    pub SubstituteNameOffset: c_ushort,
+    pub SubstituteNameLength: c_ushort,
+    pub PrintNameOffset: c_ushort,
+    pub PrintNameLength: c_ushort,
+    pub Flags: c_ulong,
+    pub PathBuffer: WCHAR,
+}
+
+#[repr(C)]
+pub struct MOUNT_POINT_REPARSE_BUFFER {
+    pub SubstituteNameOffset: c_ushort,
+    pub SubstituteNameLength: c_ushort,
+    pub PrintNameOffset: c_ushort,
+    pub PrintNameLength: c_ushort,
+    pub PathBuffer: WCHAR,
+}
+
+pub type LPPROGRESS_ROUTINE = ::option::Option<unsafe extern "system" fn(
+    TotalFileSize: LARGE_INTEGER,
+    TotalBytesTransferred: LARGE_INTEGER,
+    StreamSize: LARGE_INTEGER,
+    StreamBytesTransferred: LARGE_INTEGER,
+    dwStreamNumber: DWORD,
+    dwCallbackReason: DWORD,
+    hSourceFile: HANDLE,
+    hDestinationFile: HANDLE,
+    lpData: LPVOID,
+) -> DWORD>;
+
+#[repr(C)]
+pub struct CONDITION_VARIABLE { pub ptr: LPVOID }
+#[repr(C)]
+pub struct SRWLOCK { pub ptr: LPVOID }
+#[repr(C)]
+pub struct CRITICAL_SECTION {
+    CriticalSectionDebug: LPVOID,
+    LockCount: LONG,
+    RecursionCount: LONG,
+    OwningThread: HANDLE,
+    LockSemaphore: HANDLE,
+    SpinCount: ULONG_PTR
+}
+
+#[repr(C)]
+pub struct REPARSE_MOUNTPOINT_DATA_BUFFER {
+    pub ReparseTag: DWORD,
+    pub ReparseDataLength: DWORD,
+    pub Reserved: WORD,
+    pub ReparseTargetLength: WORD,
+    pub ReparseTargetMaximumLength: WORD,
+    pub Reserved1: WORD,
+    pub ReparseTarget: WCHAR,
+}
+
+#[repr(C)]
+pub struct EXCEPTION_RECORD {
+    pub ExceptionCode: DWORD,
+    pub ExceptionFlags: DWORD,
+    pub ExceptionRecord: *mut EXCEPTION_RECORD,
+    pub ExceptionAddress: LPVOID,
+    pub NumberParameters: DWORD,
+    pub ExceptionInformation: [LPVOID; EXCEPTION_MAXIMUM_PARAMETERS]
+}
+
+#[repr(C)]
+pub struct EXCEPTION_POINTERS {
+    pub ExceptionRecord: *mut EXCEPTION_RECORD,
+    pub ContextRecord: *mut CONTEXT,
+}
+
+pub type PVECTORED_EXCEPTION_HANDLER = extern "system"
+        fn(ExceptionInfo: *mut EXCEPTION_POINTERS) -> LONG;
+
+#[repr(C)]
+pub struct GUID {
+    pub Data1: DWORD,
+    pub Data2: WORD,
+    pub Data3: WORD,
+    pub Data4: [BYTE; 8],
+}
+
+#[repr(C)]
+pub struct WSAPROTOCOLCHAIN {
+    pub ChainLen: c_int,
+    pub ChainEntries: [DWORD; MAX_PROTOCOL_CHAIN as usize],
+}
+
+#[repr(C)]
+pub struct SECURITY_ATTRIBUTES {
+    pub nLength: DWORD,
+    pub lpSecurityDescriptor: LPVOID,
+    pub bInheritHandle: BOOL,
+}
+
+#[repr(C)]
+pub struct PROCESS_INFORMATION {
+    pub hProcess: HANDLE,
+    pub hThread: HANDLE,
+    pub dwProcessId: DWORD,
+    pub dwThreadId: DWORD,
+}
+
+#[repr(C)]
+pub struct STARTUPINFO {
+    pub cb: DWORD,
+    pub lpReserved: LPWSTR,
+    pub lpDesktop: LPWSTR,
+    pub lpTitle: LPWSTR,
+    pub dwX: DWORD,
+    pub dwY: DWORD,
+    pub dwXSize: DWORD,
+    pub dwYSize: DWORD,
+    pub dwXCountChars: DWORD,
+    pub dwYCountCharts: DWORD,
+    pub dwFillAttribute: DWORD,
+    pub dwFlags: DWORD,
+    pub wShowWindow: WORD,
+    pub cbReserved2: WORD,
+    pub lpReserved2: LPBYTE,
+    pub hStdInput: HANDLE,
+    pub hStdOutput: HANDLE,
+    pub hStdError: HANDLE,
+}
+
+#[repr(C)]
+pub struct SOCKADDR {
+    pub sa_family: ADDRESS_FAMILY,
+    pub sa_data: [CHAR; 14],
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct FILETIME {
+    pub dwLowDateTime: DWORD,
+    pub dwHighDateTime: DWORD,
+}
+
+#[repr(C)]
+pub struct OVERLAPPED {
+    pub Internal: *mut c_ulong,
+    pub InternalHigh: *mut c_ulong,
+    pub Offset: DWORD,
+    pub OffsetHigh: DWORD,
+    pub hEvent: HANDLE,
+}
+
+#[repr(C)]
+#[cfg(target_env = "msvc")]
+#[cfg(feature = "backtrace")]
+pub struct SYMBOL_INFO {
+    pub SizeOfStruct: c_ulong,
+    pub TypeIndex: c_ulong,
+    pub Reserved: [u64; 2],
+    pub Index: c_ulong,
+    pub Size: c_ulong,
+    pub ModBase: u64,
+    pub Flags: c_ulong,
+    pub Value: u64,
+    pub Address: u64,
+    pub Register: c_ulong,
+    pub Scope: c_ulong,
+    pub Tag: c_ulong,
+    pub NameLen: c_ulong,
+    pub MaxNameLen: c_ulong,
+    // note that windows has this as 1, but it basically just means that
+    // the name is inline at the end of the struct. For us, we just bump
+    // the struct size up to MAX_SYM_NAME.
+    pub Name: [c_char; MAX_SYM_NAME],
+}
+
+#[repr(C)]
+#[cfg(target_env = "msvc")]
+#[cfg(feature = "backtrace")]
+pub struct IMAGEHLP_LINE64 {
+    pub SizeOfStruct: u32,
+    pub Key: *const c_void,
+    pub LineNumber: u32,
+    pub Filename: *const c_char,
+    pub Address: u64,
+}
+
+#[repr(C)]
+#[allow(dead_code)] // we only use some variants
+pub enum ADDRESS_MODE {
+    AddrMode1616,
+    AddrMode1632,
+    AddrModeReal,
+    AddrModeFlat,
+}
+
+#[repr(C)]
+#[cfg(feature = "backtrace")]
+pub struct ADDRESS64 {
+    pub Offset: u64,
+    pub Segment: u16,
+    pub Mode: ADDRESS_MODE,
+}
+
+#[repr(C)]
+#[cfg(feature = "backtrace")]
+pub struct STACKFRAME_EX {
+    pub AddrPC: ADDRESS64,
+    pub AddrReturn: ADDRESS64,
+    pub AddrFrame: ADDRESS64,
+    pub AddrStack: ADDRESS64,
+    pub AddrBStore: ADDRESS64,
+    pub FuncTableEntry: *mut c_void,
+    pub Params: [u64; 4],
+    pub Far: BOOL,
+    pub Virtual: BOOL,
+    pub Reserved: [u64; 3],
+    pub KdHelp: KDHELP64,
+    pub StackFrameSize: DWORD,
+    pub InlineFrameContext: DWORD,
+}
+
+#[repr(C)]
+#[cfg(feature = "backtrace")]
+pub struct KDHELP64 {
+    pub Thread: u64,
+    pub ThCallbackStack: DWORD,
+    pub ThCallbackBStore: DWORD,
+    pub NextCallback: DWORD,
+    pub FramePointer: DWORD,
+    pub KiCallUserMode: u64,
+    pub KeUserCallbackDispatcher: u64,
+    pub SystemRangeStart: u64,
+    pub KiUserExceptionDispatcher: u64,
+    pub StackBase: u64,
+    pub StackLimit: u64,
+    pub Reserved: [u64; 5],
+}
+
+#[cfg(target_arch = "x86")]
+#[repr(C)]
+pub struct CONTEXT {
+    pub ContextFlags: DWORD,
+    pub Dr0: DWORD,
+    pub Dr1: DWORD,
+    pub Dr2: DWORD,
+    pub Dr3: DWORD,
+    pub Dr6: DWORD,
+    pub Dr7: DWORD,
+    pub FloatSave: FLOATING_SAVE_AREA,
+    pub SegGs: DWORD,
+    pub SegFs: DWORD,
+    pub SegEs: DWORD,
+    pub SegDs: DWORD,
+    pub Edi: DWORD,
+    pub Esi: DWORD,
+    pub Ebx: DWORD,
+    pub Edx: DWORD,
+    pub Ecx: DWORD,
+    pub Eax: DWORD,
+    pub Ebp: DWORD,
+    pub Eip: DWORD,
+    pub SegCs: DWORD,
+    pub EFlags: DWORD,
+    pub Esp: DWORD,
+    pub SegSs: DWORD,
+    pub ExtendedRegisters: [u8; 512],
+}
+
+#[cfg(target_arch = "x86")]
+#[repr(C)]
+pub struct FLOATING_SAVE_AREA {
+    pub ControlWord: DWORD,
+    pub StatusWord: DWORD,
+    pub TagWord: DWORD,
+    pub ErrorOffset: DWORD,
+    pub ErrorSelector: DWORD,
+    pub DataOffset: DWORD,
+    pub DataSelector: DWORD,
+    pub RegisterArea: [u8; 80],
+    pub Cr0NpxState: DWORD,
+}
+
+#[cfg(target_arch = "x86_64")]
+#[repr(C, align(16))]
+pub struct CONTEXT {
+    pub P1Home: DWORDLONG,
+    pub P2Home: DWORDLONG,
+    pub P3Home: DWORDLONG,
+    pub P4Home: DWORDLONG,
+    pub P5Home: DWORDLONG,
+    pub P6Home: DWORDLONG,
+
+    pub ContextFlags: DWORD,
+    pub MxCsr: DWORD,
+
+    pub SegCs: WORD,
+    pub SegDs: WORD,
+    pub SegEs: WORD,
+    pub SegFs: WORD,
+    pub SegGs: WORD,
+    pub SegSs: WORD,
+    pub EFlags: DWORD,
+
+    pub Dr0: DWORDLONG,
+    pub Dr1: DWORDLONG,
+    pub Dr2: DWORDLONG,
+    pub Dr3: DWORDLONG,
+    pub Dr6: DWORDLONG,
+    pub Dr7: DWORDLONG,
+
+    pub Rax: DWORDLONG,
+    pub Rcx: DWORDLONG,
+    pub Rdx: DWORDLONG,
+    pub Rbx: DWORDLONG,
+    pub Rsp: DWORDLONG,
+    pub Rbp: DWORDLONG,
+    pub Rsi: DWORDLONG,
+    pub Rdi: DWORDLONG,
+    pub R8:  DWORDLONG,
+    pub R9:  DWORDLONG,
+    pub R10: DWORDLONG,
+    pub R11: DWORDLONG,
+    pub R12: DWORDLONG,
+    pub R13: DWORDLONG,
+    pub R14: DWORDLONG,
+    pub R15: DWORDLONG,
+
+    pub Rip: DWORDLONG,
+
+    pub FltSave: FLOATING_SAVE_AREA,
+
+    pub VectorRegister: [M128A; 26],
+    pub VectorControl: DWORDLONG,
+
+    pub DebugControl: DWORDLONG,
+    pub LastBranchToRip: DWORDLONG,
+    pub LastBranchFromRip: DWORDLONG,
+    pub LastExceptionToRip: DWORDLONG,
+    pub LastExceptionFromRip: DWORDLONG,
+}
+
+#[cfg(target_arch = "x86_64")]
+#[repr(C, align(16))]
+pub struct M128A {
+    pub Low:  c_ulonglong,
+    pub High: c_longlong
+}
+
+#[cfg(target_arch = "x86_64")]
+#[repr(C, align(16))]
+pub struct FLOATING_SAVE_AREA {
+    _Dummy: [u8; 512] // FIXME: Fill this out
+}
+
+// FIXME(#43348): This structure is used for backtrace only, and a fake
+// definition is provided here only to allow rustdoc to pass type-check. This
+// will not appear in the final documentation. This should be also defined for
+// other architectures supported by Windows such as ARM, and for historical
+// interest, maybe MIPS and PowerPC as well.
+#[cfg(all(dox, not(any(target_arch = "x86_64", target_arch = "x86"))))]
+pub enum CONTEXT {}
+
+#[repr(C)]
+pub struct SOCKADDR_STORAGE_LH {
+    pub ss_family: ADDRESS_FAMILY,
+    pub __ss_pad1: [CHAR; 6],
+    pub __ss_align: i64,
+    pub __ss_pad2: [CHAR; 112],
+}
+
+#[repr(C)]
+pub struct ADDRINFOA {
+    pub ai_flags: c_int,
+    pub ai_family: c_int,
+    pub ai_socktype: c_int,
+    pub ai_protocol: c_int,
+    pub ai_addrlen: size_t,
+    pub ai_canonname: *mut c_char,
+    pub ai_addr: *mut SOCKADDR,
+    pub ai_next: *mut ADDRINFOA,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct sockaddr_in {
+    pub sin_family: ADDRESS_FAMILY,
+    pub sin_port: USHORT,
+    pub sin_addr: in_addr,
+    pub sin_zero: [CHAR; 8],
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct sockaddr_in6 {
+    pub sin6_family: ADDRESS_FAMILY,
+    pub sin6_port: USHORT,
+    pub sin6_flowinfo: c_ulong,
+    pub sin6_addr: in6_addr,
+    pub sin6_scope_id: c_ulong,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct in_addr {
+    pub s_addr: u32,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct in6_addr {
+    pub s6_addr: [u8; 16],
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+#[allow(dead_code)] // we only use some variants
+pub enum EXCEPTION_DISPOSITION {
+    ExceptionContinueExecution,
+    ExceptionContinueSearch,
+    ExceptionNestedException,
+    ExceptionCollidedUnwind
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct CONSOLE_READCONSOLE_CONTROL {
+    pub nLength: ULONG,
+    pub nInitialChars: ULONG,
+    pub dwCtrlWakeupMask: ULONG,
+    pub dwControlKeyState: ULONG,
+}
+pub type PCONSOLE_READCONSOLE_CONTROL = *mut CONSOLE_READCONSOLE_CONTROL;
+
+#[repr(C)]
+#[derive(Copy)]
+pub struct fd_set {
+    pub fd_count: c_uint,
+    pub fd_array: [SOCKET; FD_SETSIZE],
+}
+
+impl Clone for fd_set {
+    fn clone(&self) -> fd_set {
+        *self
+    }
+}
+
+#[repr(C)]
+#[derive(Copy, Clone)]
+pub struct timeval {
+    pub tv_sec: c_long,
+    pub tv_usec: c_long,
+}
+
+extern "system" {
+    pub fn WSAStartup(wVersionRequested: WORD,
+                      lpWSAData: LPWSADATA) -> c_int;
+    pub fn WSACleanup() -> c_int;
+    pub fn WSAGetLastError() -> c_int;
+    pub fn WSADuplicateSocketW(s: SOCKET,
+                               dwProcessId: DWORD,
+                               lpProtocolInfo: LPWSAPROTOCOL_INFO)
+                               -> c_int;
+    pub fn GetCurrentProcessId() -> DWORD;
+    pub fn WSASocketW(af: c_int,
+                      kind: c_int,
+                      protocol: c_int,
+                      lpProtocolInfo: LPWSAPROTOCOL_INFO,
+                      g: GROUP,
+                      dwFlags: DWORD) -> SOCKET;
+    pub fn ioctlsocket(s: SOCKET, cmd: c_long, argp: *mut c_ulong) -> c_int;
+    pub fn InitializeCriticalSection(CriticalSection: *mut CRITICAL_SECTION);
+    pub fn EnterCriticalSection(CriticalSection: *mut CRITICAL_SECTION);
+    pub fn TryEnterCriticalSection(CriticalSection: *mut CRITICAL_SECTION) -> BOOLEAN;
+    pub fn LeaveCriticalSection(CriticalSection: *mut CRITICAL_SECTION);
+    pub fn DeleteCriticalSection(CriticalSection: *mut CRITICAL_SECTION);
+
+    pub fn ReadConsoleW(hConsoleInput: HANDLE,
+                        lpBuffer: LPVOID,
+                        nNumberOfCharsToRead: DWORD,
+                        lpNumberOfCharsRead: LPDWORD,
+                        pInputControl: PCONSOLE_READCONSOLE_CONTROL) -> BOOL;
+
+    pub fn WriteConsoleW(hConsoleOutput: HANDLE,
+                         lpBuffer: LPCVOID,
+                         nNumberOfCharsToWrite: DWORD,
+                         lpNumberOfCharsWritten: LPDWORD,
+                         lpReserved: LPVOID) -> BOOL;
+
+    pub fn GetConsoleMode(hConsoleHandle: HANDLE,
+                          lpMode: LPDWORD) -> BOOL;
+    pub fn RemoveDirectoryW(lpPathName: LPCWSTR) -> BOOL;
+    pub fn SetFileAttributesW(lpFileName: LPCWSTR,
+                              dwFileAttributes: DWORD) -> BOOL;
+    pub fn GetFileInformationByHandle(hFile: HANDLE,
+                            lpFileInformation: LPBY_HANDLE_FILE_INFORMATION)
+                            -> BOOL;
+
+    pub fn SetLastError(dwErrCode: DWORD);
+    pub fn GetCommandLineW() -> *mut LPCWSTR;
+    pub fn LocalFree(ptr: *mut c_void);
+    pub fn CommandLineToArgvW(lpCmdLine: *mut LPCWSTR,
+                              pNumArgs: *mut c_int) -> *mut *mut u16;
+    pub fn GetTempPathW(nBufferLength: DWORD,
+                        lpBuffer: LPCWSTR) -> DWORD;
+    pub fn OpenProcessToken(ProcessHandle: HANDLE,
+                            DesiredAccess: DWORD,
+                            TokenHandle: *mut HANDLE) -> BOOL;
+    pub fn GetCurrentProcess() -> HANDLE;
+    pub fn GetCurrentThread() -> HANDLE;
+    pub fn GetStdHandle(which: DWORD) -> HANDLE;
+    pub fn ExitProcess(uExitCode: c_uint) -> !;
+    pub fn DeviceIoControl(hDevice: HANDLE,
+                           dwIoControlCode: DWORD,
+                           lpInBuffer: LPVOID,
+                           nInBufferSize: DWORD,
+                           lpOutBuffer: LPVOID,
+                           nOutBufferSize: DWORD,
+                           lpBytesReturned: LPDWORD,
+                           lpOverlapped: LPOVERLAPPED) -> BOOL;
+    pub fn CreateThread(lpThreadAttributes: LPSECURITY_ATTRIBUTES,
+                        dwStackSize: SIZE_T,
+                        lpStartAddress: extern "system" fn(*mut c_void)
+                                                           -> DWORD,
+                        lpParameter: LPVOID,
+                        dwCreationFlags: DWORD,
+                        lpThreadId: LPDWORD) -> HANDLE;
+    pub fn WaitForSingleObject(hHandle: HANDLE,
+                               dwMilliseconds: DWORD) -> DWORD;
+    pub fn SwitchToThread() -> BOOL;
+    pub fn Sleep(dwMilliseconds: DWORD);
+    pub fn GetProcessId(handle: HANDLE) -> DWORD;
+    pub fn GetUserProfileDirectoryW(hToken: HANDLE,
+                                    lpProfileDir: LPWSTR,
+                                    lpcchSize: *mut DWORD) -> BOOL;
+    pub fn SetHandleInformation(hObject: HANDLE,
+                                dwMask: DWORD,
+                                dwFlags: DWORD) -> BOOL;
+    pub fn CopyFileExW(lpExistingFileName: LPCWSTR,
+                       lpNewFileName: LPCWSTR,
+                       lpProgressRoutine: LPPROGRESS_ROUTINE,
+                       lpData: LPVOID,
+                       pbCancel: LPBOOL,
+                       dwCopyFlags: DWORD) -> BOOL;
+    pub fn AddVectoredExceptionHandler(FirstHandler: ULONG,
+                                       VectoredHandler: PVECTORED_EXCEPTION_HANDLER)
+                                       -> LPVOID;
+    pub fn FormatMessageW(flags: DWORD,
+                          lpSrc: LPVOID,
+                          msgId: DWORD,
+                          langId: DWORD,
+                          buf: LPWSTR,
+                          nsize: DWORD,
+                          args: *const c_void)
+                          -> DWORD;
+    pub fn TlsAlloc() -> DWORD;
+    pub fn TlsGetValue(dwTlsIndex: DWORD) -> LPVOID;
+    pub fn TlsSetValue(dwTlsIndex: DWORD, lpTlsvalue: LPVOID) -> BOOL;
+    pub fn GetLastError() -> DWORD;
+    pub fn QueryPerformanceFrequency(lpFrequency: *mut LARGE_INTEGER) -> BOOL;
+    pub fn QueryPerformanceCounter(lpPerformanceCount: *mut LARGE_INTEGER)
+                                   -> BOOL;
+    pub fn GetExitCodeProcess(hProcess: HANDLE, lpExitCode: LPDWORD) -> BOOL;
+    pub fn TerminateProcess(hProcess: HANDLE, uExitCode: UINT) -> BOOL;
+    pub fn CreateProcessW(lpApplicationName: LPCWSTR,
+                          lpCommandLine: LPWSTR,
+                          lpProcessAttributes: LPSECURITY_ATTRIBUTES,
+                          lpThreadAttributes: LPSECURITY_ATTRIBUTES,
+                          bInheritHandles: BOOL,
+                          dwCreationFlags: DWORD,
+                          lpEnvironment: LPVOID,
+                          lpCurrentDirectory: LPCWSTR,
+                          lpStartupInfo: LPSTARTUPINFO,
+                          lpProcessInformation: LPPROCESS_INFORMATION)
+                          -> BOOL;
+    pub fn GetEnvironmentVariableW(n: LPCWSTR, v: LPWSTR, nsize: DWORD) -> DWORD;
+    pub fn SetEnvironmentVariableW(n: LPCWSTR, v: LPCWSTR) -> BOOL;
+    pub fn GetEnvironmentStringsW() -> LPWCH;
+    pub fn FreeEnvironmentStringsW(env_ptr: LPWCH) -> BOOL;
+    pub fn GetModuleFileNameW(hModule: HMODULE,
+                              lpFilename: LPWSTR,
+                              nSize: DWORD)
+                              -> DWORD;
+    pub fn CreateDirectoryW(lpPathName: LPCWSTR,
+                            lpSecurityAttributes: LPSECURITY_ATTRIBUTES)
+                            -> BOOL;
+    pub fn DeleteFileW(lpPathName: LPCWSTR) -> BOOL;
+    pub fn GetCurrentDirectoryW(nBufferLength: DWORD, lpBuffer: LPWSTR) -> DWORD;
+    pub fn SetCurrentDirectoryW(lpPathName: LPCWSTR) -> BOOL;
+    pub fn WideCharToMultiByte(CodePage: UINT,
+                               dwFlags: DWORD,
+                               lpWideCharStr: LPCWSTR,
+                               cchWideChar: c_int,
+                               lpMultiByteStr: LPSTR,
+                               cbMultiByte: c_int,
+                               lpDefaultChar: LPCSTR,
+                               lpUsedDefaultChar: LPBOOL) -> c_int;
+
+    pub fn closesocket(socket: SOCKET) -> c_int;
+    pub fn recv(socket: SOCKET, buf: *mut c_void, len: c_int,
+                flags: c_int) -> c_int;
+    pub fn send(socket: SOCKET, buf: *const c_void, len: c_int,
+                flags: c_int) -> c_int;
+    pub fn recvfrom(socket: SOCKET,
+                    buf: *mut c_void,
+                    len: c_int,
+                    flags: c_int,
+                    addr: *mut SOCKADDR,
+                    addrlen: *mut c_int)
+                    -> c_int;
+    pub fn sendto(socket: SOCKET,
+                  buf: *const c_void,
+                  len: c_int,
+                  flags: c_int,
+                  addr: *const SOCKADDR,
+                  addrlen: c_int)
+                  -> c_int;
+    pub fn shutdown(socket: SOCKET, how: c_int) -> c_int;
+    pub fn accept(socket: SOCKET,
+                  address: *mut SOCKADDR,
+                  address_len: *mut c_int)
+                  -> SOCKET;
+    pub fn DuplicateHandle(hSourceProcessHandle: HANDLE,
+                           hSourceHandle: HANDLE,
+                           hTargetProcessHandle: HANDLE,
+                           lpTargetHandle: LPHANDLE,
+                           dwDesiredAccess: DWORD,
+                           bInheritHandle: BOOL,
+                           dwOptions: DWORD)
+                           -> BOOL;
+    pub fn ReadFile(hFile: HANDLE,
+                    lpBuffer: LPVOID,
+                    nNumberOfBytesToRead: DWORD,
+                    lpNumberOfBytesRead: LPDWORD,
+                    lpOverlapped: LPOVERLAPPED)
+                    -> BOOL;
+    pub fn WriteFile(hFile: HANDLE,
+                     lpBuffer: LPVOID,
+                     nNumberOfBytesToWrite: DWORD,
+                     lpNumberOfBytesWritten: LPDWORD,
+                     lpOverlapped: LPOVERLAPPED)
+                     -> BOOL;
+    pub fn CloseHandle(hObject: HANDLE) -> BOOL;
+    pub fn CreateHardLinkW(lpSymlinkFileName: LPCWSTR,
+                           lpTargetFileName: LPCWSTR,
+                           lpSecurityAttributes: LPSECURITY_ATTRIBUTES)
+                           -> BOOL;
+    pub fn MoveFileExW(lpExistingFileName: LPCWSTR,
+                       lpNewFileName: LPCWSTR,
+                       dwFlags: DWORD)
+                       -> BOOL;
+    pub fn SetFilePointerEx(hFile: HANDLE,
+                            liDistanceToMove: LARGE_INTEGER,
+                            lpNewFilePointer: PLARGE_INTEGER,
+                            dwMoveMethod: DWORD)
+                            -> BOOL;
+    pub fn FlushFileBuffers(hFile: HANDLE) -> BOOL;
+    pub fn CreateFileW(lpFileName: LPCWSTR,
+                       dwDesiredAccess: DWORD,
+                       dwShareMode: DWORD,
+                       lpSecurityAttributes: LPSECURITY_ATTRIBUTES,
+                       dwCreationDisposition: DWORD,
+                       dwFlagsAndAttributes: DWORD,
+                       hTemplateFile: HANDLE)
+                       -> HANDLE;
+
+    pub fn FindFirstFileW(fileName: LPCWSTR,
+                          findFileData: LPWIN32_FIND_DATAW)
+                          -> HANDLE;
+    pub fn FindNextFileW(findFile: HANDLE, findFileData: LPWIN32_FIND_DATAW)
+                         -> BOOL;
+    pub fn FindClose(findFile: HANDLE) -> BOOL;
+    #[cfg(feature = "backtrace")]
+    pub fn RtlCaptureContext(ctx: *mut CONTEXT);
+    pub fn getsockopt(s: SOCKET,
+                      level: c_int,
+                      optname: c_int,
+                      optval: *mut c_char,
+                      optlen: *mut c_int)
+                      -> c_int;
+    pub fn setsockopt(s: SOCKET,
+                      level: c_int,
+                      optname: c_int,
+                      optval: *const c_void,
+                      optlen: c_int)
+                      -> c_int;
+    pub fn getsockname(socket: SOCKET,
+                       address: *mut SOCKADDR,
+                       address_len: *mut c_int)
+                       -> c_int;
+    pub fn getpeername(socket: SOCKET,
+                       address: *mut SOCKADDR,
+                       address_len: *mut c_int)
+                       -> c_int;
+    pub fn bind(socket: SOCKET, address: *const SOCKADDR,
+                address_len: socklen_t) -> c_int;
+    pub fn listen(socket: SOCKET, backlog: c_int) -> c_int;
+    pub fn connect(socket: SOCKET, address: *const SOCKADDR, len: c_int)
+                   -> c_int;
+    pub fn getaddrinfo(node: *const c_char, service: *const c_char,
+                       hints: *const ADDRINFOA,
+                       res: *mut *mut ADDRINFOA) -> c_int;
+    pub fn freeaddrinfo(res: *mut ADDRINFOA);
+
+    #[cfg(feature = "backtrace")]
+    pub fn LoadLibraryW(name: LPCWSTR) -> HMODULE;
+    #[cfg(feature = "backtrace")]
+    pub fn FreeLibrary(handle: HMODULE) -> BOOL;
+    pub fn GetProcAddress(handle: HMODULE,
+                          name: LPCSTR) -> *mut c_void;
+    pub fn GetModuleHandleW(lpModuleName: LPCWSTR) -> HMODULE;
+
+    pub fn GetSystemTimeAsFileTime(lpSystemTimeAsFileTime: LPFILETIME);
+
+    pub fn CreateEventW(lpEventAttributes: LPSECURITY_ATTRIBUTES,
+                        bManualReset: BOOL,
+                        bInitialState: BOOL,
+                        lpName: LPCWSTR) -> HANDLE;
+    pub fn WaitForMultipleObjects(nCount: DWORD,
+                                  lpHandles: *const HANDLE,
+                                  bWaitAll: BOOL,
+                                  dwMilliseconds: DWORD) -> DWORD;
+    pub fn CreateNamedPipeW(lpName: LPCWSTR,
+                            dwOpenMode: DWORD,
+                            dwPipeMode: DWORD,
+                            nMaxInstances: DWORD,
+                            nOutBufferSize: DWORD,
+                            nInBufferSize: DWORD,
+                            nDefaultTimeOut: DWORD,
+                            lpSecurityAttributes: LPSECURITY_ATTRIBUTES)
+                            -> HANDLE;
+    pub fn CancelIo(handle: HANDLE) -> BOOL;
+    pub fn GetOverlappedResult(hFile: HANDLE,
+                               lpOverlapped: LPOVERLAPPED,
+                               lpNumberOfBytesTransferred: LPDWORD,
+                               bWait: BOOL) -> BOOL;
+    pub fn select(nfds: c_int,
+                  readfds: *mut fd_set,
+                  writefds: *mut fd_set,
+                  exceptfds: *mut fd_set,
+                  timeout: *const timeval) -> c_int;
+
+    #[link_name = "SystemFunction036"]
+    pub fn RtlGenRandom(RandomBuffer: *mut u8, RandomBufferLength: ULONG) -> BOOLEAN;
+}
+
+// Functions that aren't available on every version of Windows that we support,
+// but we still use them and just provide some form of a fallback implementation.
+compat_fn! {
+    kernel32:
+
+    pub fn CreateSymbolicLinkW(_lpSymlinkFileName: LPCWSTR,
+                               _lpTargetFileName: LPCWSTR,
+                               _dwFlags: DWORD) -> BOOLEAN {
+        SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0
+    }
+    pub fn GetFinalPathNameByHandleW(_hFile: HANDLE,
+                                     _lpszFilePath: LPCWSTR,
+                                     _cchFilePath: DWORD,
+                                     _dwFlags: DWORD) -> DWORD {
+        SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0
+    }
+    pub fn SetThreadStackGuarantee(_size: *mut c_ulong) -> BOOL {
+        SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0
+    }
+    pub fn SetThreadDescription(hThread: HANDLE,
+                                lpThreadDescription: LPCWSTR) -> HRESULT {
+        SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); E_NOTIMPL
+    }
+    pub fn SetFileInformationByHandle(_hFile: HANDLE,
+                    _FileInformationClass: FILE_INFO_BY_HANDLE_CLASS,
+                    _lpFileInformation: LPVOID,
+                    _dwBufferSize: DWORD) -> BOOL {
+        SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0
+    }
+    pub fn SleepConditionVariableSRW(ConditionVariable: PCONDITION_VARIABLE,
+                                     SRWLock: PSRWLOCK,
+                                     dwMilliseconds: DWORD,
+                                     Flags: ULONG) -> BOOL {
+        panic!("condition variables not available")
+    }
+    pub fn WakeConditionVariable(ConditionVariable: PCONDITION_VARIABLE)
+                                 -> () {
+        panic!("condition variables not available")
+    }
+    pub fn WakeAllConditionVariable(ConditionVariable: PCONDITION_VARIABLE)
+                                    -> () {
+        panic!("condition variables not available")
+    }
+    pub fn AcquireSRWLockExclusive(SRWLock: PSRWLOCK) -> () {
+        panic!("rwlocks not available")
+    }
+    pub fn AcquireSRWLockShared(SRWLock: PSRWLOCK) -> () {
+        panic!("rwlocks not available")
+    }
+    pub fn ReleaseSRWLockExclusive(SRWLock: PSRWLOCK) -> () {
+        panic!("rwlocks not available")
+    }
+    pub fn ReleaseSRWLockShared(SRWLock: PSRWLOCK) -> () {
+        panic!("rwlocks not available")
+    }
+    pub fn TryAcquireSRWLockExclusive(SRWLock: PSRWLOCK) -> BOOLEAN {
+        panic!("rwlocks not available")
+    }
+    pub fn TryAcquireSRWLockShared(SRWLock: PSRWLOCK) -> BOOLEAN {
+        panic!("rwlocks not available")
+    }
+}
+
+#[cfg(all(target_env = "gnu", feature = "backtrace"))]
+mod gnu {
+    use super::*;
+
+    pub const PROCESS_QUERY_INFORMATION: DWORD = 0x0400;
+
+    pub const CP_ACP: UINT = 0;
+
+    pub const WC_NO_BEST_FIT_CHARS: DWORD = 0x00000400;
+
+    extern "system" {
+        pub fn OpenProcess(dwDesiredAccess: DWORD,
+                           bInheritHandle: BOOL,
+                           dwProcessId: DWORD) -> HANDLE;
+    }
+
+    compat_fn! {
+        kernel32:
+
+        pub fn QueryFullProcessImageNameW(_hProcess: HANDLE,
+                                          _dwFlags: DWORD,
+                                          _lpExeName: LPWSTR,
+                                          _lpdwSize: LPDWORD) -> BOOL {
+            SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0
+        }
+    }
+}
+
+#[cfg(all(target_env = "gnu", feature = "backtrace"))]
+pub use self::gnu::*;