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Added Windows asyncfile implementation.

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This commit is contained in:
Dominik Picheta
2014-09-05 17:36:16 +01:00
parent 5fb12144b3
commit 0f3025e320
3 changed files with 38 additions and 17 deletions
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24
lib/windows/winlean.nim
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@@ -104,11 +104,11 @@ proc closeHandle*(hObject: THandle): WINBOOL {.stdcall, dynlib: "kernel32",
importc: "CloseHandle".}
proc readFile*(hFile: THandle, Buffer: pointer, nNumberOfBytesToRead: int32,
lpNumberOfBytesRead: var int32, lpOverlapped: pointer): WINBOOL{.
lpNumberOfBytesRead: ptr int32, lpOverlapped: pointer): WINBOOL{.
stdcall, dynlib: "kernel32", importc: "ReadFile".}
proc writeFile*(hFile: THandle, Buffer: pointer, nNumberOfBytesToWrite: int32,
lpNumberOfBytesWritten: var int32,
lpNumberOfBytesWritten: ptr int32,
lpOverlapped: pointer): WINBOOL{.
stdcall, dynlib: "kernel32", importc: "WriteFile".}
@@ -573,12 +573,14 @@ proc waitForMultipleObjects*(nCount: DWORD, lpHandles: PWOHandleArray,
const
GENERIC_READ* = 0x80000000'i32
GENERIC_WRITE* = 0x40000000'i32
GENERIC_ALL* = 0x10000000'i32
FILE_SHARE_READ* = 1'i32
FILE_SHARE_DELETE* = 4'i32
FILE_SHARE_WRITE* = 2'i32
CREATE_ALWAYS* = 2'i32
CREATE_NEW* = 1'i32
OPEN_EXISTING* = 3'i32
FILE_BEGIN* = 0'i32
INVALID_SET_FILE_POINTER* = -1'i32
@@ -595,6 +597,7 @@ const
# Error Constants
const
ERROR_ACCESS_DENIED* = 5
ERROR_HANDLE_EOF* = 38
when useWinUnicode:
proc createFileW*(lpFileName: WideCString, dwDesiredAccess, dwShareMode: DWORD,
@@ -649,10 +652,10 @@ proc unmapViewOfFile*(lpBaseAddress: pointer): WINBOOL {.stdcall,
type
TOVERLAPPED* {.pure, inheritable.} = object
Internal*: PULONG
InternalHigh*: PULONG
Offset*: DWORD
OffsetHigh*: DWORD
internal*: PULONG
internalHigh*: PULONG
offset*: DWORD
offsetHigh*: DWORD
hEvent*: THandle
POVERLAPPED* = ptr TOVERLAPPED
@@ -668,6 +671,7 @@ type
const
ERROR_IO_PENDING* = 997 # a.k.a WSA_IO_PENDING
FILE_FLAG_OVERLAPPED* = 1073741824
WSAECONNABORTED* = 10053
WSAECONNRESET* = 10054
WSAEDISCON* = 10101
@@ -675,17 +679,21 @@ const
WSAETIMEDOUT* = 10060
ERROR_NETNAME_DELETED* = 64
proc CreateIoCompletionPort*(FileHandle: THandle, ExistingCompletionPort: THandle,
proc createIoCompletionPort*(FileHandle: THandle, ExistingCompletionPort: THandle,
CompletionKey: DWORD,
NumberOfConcurrentThreads: DWORD): THandle{.stdcall,
dynlib: "kernel32", importc: "CreateIoCompletionPort".}
proc GetQueuedCompletionStatus*(CompletionPort: THandle,
proc getQueuedCompletionStatus*(CompletionPort: THandle,
lpNumberOfBytesTransferred: PDWORD, lpCompletionKey: PULONG,
lpOverlapped: ptr POVERLAPPED,
dwMilliseconds: DWORD): WINBOOL{.stdcall,
dynlib: "kernel32", importc: "GetQueuedCompletionStatus".}
proc getOverlappedResult*(hFile: THandle, lpOverlapped: TOverlapped,
lpNumberOfBytesTransferred: var DWORD, bWait: WINBOOL): WINBOOL{.
stdcall, dynlib: "kernel32", importc: "GetOverlappedResult".}
const
IOC_OUT* = 0x40000000
IOC_IN* = 0x80000000