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Add MemMapFileStream. Fixes in memFiles. (#7944)

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* Add MemMapFileStream

* Added tests

* Fixed bug in memfiles (zero index for string)

* Added flush to changelog

* Attempt to fix Win's nuances

* Fix attempt to fix

* Continue...

* And again...

* Reworked tests (all for win on Win)

* Fixes in flush (Win)

* Replace fn vars to consts

* Added the attempts parameter to the flush

* Replace while to for

* Move to memfiles

* Use Natural instead of uint

* Better error messages for append mode. Handle specific cases.
This commit is contained in:
Dmitry Atamanov 2018-06-14 19:34:26 +03:00 • committed by Dominik Picheta
commit bf5d619a52
5 changed files with 195 additions and 23 deletions
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42
lib/windows/winlean.nim
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@ -129,7 +129,6 @@ const
PIPE_ACCESS_OUTBOUND* = 2'i32
PIPE_NOWAIT* = 0x00000001'i32
SYNCHRONIZE* = 0x00100000'i32
FILE_FLAG_WRITE_THROUGH* = 0x80000000'i32
CREATE_NO_WINDOW* = 0x08000000'i32
@ -281,15 +280,31 @@ else:
importc:"CreateHardLinkA", dynlib: "kernel32", stdcall.}
const
FILE_ATTRIBUTE_ARCHIVE* = 32'i32
FILE_ATTRIBUTE_COMPRESSED* = 2048'i32
FILE_ATTRIBUTE_NORMAL* = 128'i32
FILE_ATTRIBUTE_DIRECTORY* = 16'i32
FILE_ATTRIBUTE_HIDDEN* = 2'i32
FILE_ATTRIBUTE_READONLY* = 1'i32
FILE_ATTRIBUTE_REPARSE_POINT* = 1024'i32
FILE_ATTRIBUTE_SYSTEM* = 4'i32
FILE_ATTRIBUTE_TEMPORARY* = 256'i32
FILE_ATTRIBUTE_READONLY* = 0x00000001'i32
FILE_ATTRIBUTE_HIDDEN* = 0x00000002'i32
FILE_ATTRIBUTE_SYSTEM* = 0x00000004'i32
FILE_ATTRIBUTE_DIRECTORY* = 0x00000010'i32
FILE_ATTRIBUTE_ARCHIVE* = 0x00000020'i32
FILE_ATTRIBUTE_DEVICE* = 0x00000040'i32
FILE_ATTRIBUTE_NORMAL* = 0x00000080'i32
FILE_ATTRIBUTE_TEMPORARY* = 0x00000100'i32
FILE_ATTRIBUTE_SPARSE_FILE* = 0x00000200'i32
FILE_ATTRIBUTE_REPARSE_POINT* = 0x00000400'i32
FILE_ATTRIBUTE_COMPRESSED* = 0x00000800'i32
FILE_ATTRIBUTE_OFFLINE* = 0x00001000'i32
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED* = 0x00002000'i32
FILE_FLAG_FIRST_PIPE_INSTANCE* = 0x00080000'i32
FILE_FLAG_OPEN_NO_RECALL* = 0x00100000'i32
FILE_FLAG_OPEN_REPARSE_POINT* = 0x00200000'i32
FILE_FLAG_POSIX_SEMANTICS* = 0x01000000'i32
FILE_FLAG_BACKUP_SEMANTICS* = 0x02000000'i32
FILE_FLAG_DELETE_ON_CLOSE* = 0x04000000'i32
FILE_FLAG_SEQUENTIAL_SCAN* = 0x08000000'i32
FILE_FLAG_RANDOM_ACCESS* = 0x10000000'i32
FILE_FLAG_NO_BUFFERING* = 0x20000000'i32
FILE_FLAG_OVERLAPPED* = 0x40000000'i32
FILE_FLAG_WRITE_THROUGH* = 0x80000000'i32
MAX_PATH* = 260
@ -683,8 +698,6 @@ const
FILE_MAP_WRITE* = 2'i32
INVALID_FILE_SIZE* = -1'i32
FILE_FLAG_BACKUP_SEMANTICS* = 33554432'i32
FILE_FLAG_OPEN_REPARSE_POINT* = 0x00200000'i32
DUPLICATE_SAME_ACCESS* = 2
FILE_READ_DATA* = 0x00000001 # file & pipe
FILE_WRITE_DATA* = 0x00000002 # file & pipe
@ -695,6 +708,7 @@ const
ERROR_PATH_NOT_FOUND* = 3
ERROR_ACCESS_DENIED* = 5
ERROR_NO_MORE_FILES* = 18
ERROR_LOCK_VIOLATION* = 33
ERROR_HANDLE_EOF* = 38
ERROR_BAD_ARGUMENTS* = 165
@ -763,6 +777,9 @@ when not useWinUnicode:
proc unmapViewOfFile*(lpBaseAddress: pointer): WINBOOL {.stdcall,
dynlib: "kernel32", importc: "UnmapViewOfFile".}
proc flushViewOfFile*(lpBaseAddress: pointer, dwNumberOfBytesToFlush: DWORD): WINBOOL {.
stdcall, dynlib: "kernel32", importc: "FlushViewOfFile".}
type
OVERLAPPED* {.pure, inheritable.} = object
internal*: PULONG
@ -785,7 +802,6 @@ type
const
ERROR_IO_PENDING* = 997 # a.k.a WSA_IO_PENDING
FILE_FLAG_OVERLAPPED* = 1073741824
WSAECONNABORTED* = 10053
WSAEADDRINUSE* = 10048
WSAECONNRESET* = 10054