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WIN32 file notification api #1392

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6330b68
Add win32 apis
A2va Mar 26, 2025
7be91e3
Add file notification enum
A2va Nov 6, 2025
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16 changes: 16 additions & 0 deletions libc/isystem/windowsesque.h
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Expand Up @@ -381,6 +381,9 @@
#define _FILE_STREAM_INFORMATION NtFileStreamInformation
#define FILE_STREAM_INFORMATION struct NtFileStreamInformation
#define PFILE_STREAM_INFORMATION struct NtFileStreamInformation*
#define _FILE_NOTIFY_INFORMATION NtFileNotifyInformation
#define FILE_NOTIFY_INFORMATION struct NtFileNotifyInformation
#define PFILE_NOTIFY_INFORMATION struct NtFileNotifyInformation*
#define _KERNEL_USER_TIMES NtKernelUserTimes
#define KERNEL_USER_TIMES struct NtKernelUserTimes
#define PKERNEL_USER_TIMES struct NtKernelUserTimes*
Expand Down Expand Up @@ -662,6 +665,16 @@
#define FILE_SHARE_WRITE kNtFileShareWrite
#define FILE_SHARE_DELETE kNtFileShareDelete

#include "libc/nt/enum/filenotify.h"
#define FILE_NOTIFY_CHANGE_FILE_NAME kNtFileNotifyChangeFileName
#define FILE_NOTIFY_CHANGE_DIR_NAME kNtFileNotifyChangeDirName
#define FILE_NOTIFY_CHANGE_ATTRIBUTES kNtFileNotifyChangeAttributes
#define FILE_NOTIFY_CHANGE_SIZE kNtFileNotifyChangeSize
#define FILE_NOTIFY_CHANGE_LAST_WRITE kNtFileNotifyChangeLastWrite
#define FILE_NOTIFY_CHANGE_LAST_ACCESS kNtFileNotifyChangeLastAccess
#define FILE_NOTIFY_CHANGE_CREATION kNtFileNotifyChangeCreation
#define FILE_NOTIFY_CHANGE_SECURITY kNtFileNotifyChangeSecurity

#include "libc/nt/runtime.h"
#define INVALID_HANDLE_VALUE kNtInvalidHandleValue
#define STD_INPUT_HANDLE kNtStdInputHandle
Expand Down Expand Up @@ -1361,6 +1374,9 @@

#define WSAEVENT HANDLE
#define GROUP uint32_t
#define _OVERLAPPED NtOverlapped
#define OVERLAPPED struct NtOverlapped
#define LOVERLAPPED struct NtOverlapped*
#define WSAOVERLAPPED OVERLAPPED
#define INVALID_SOCKET -1ULL
#define SOCKET_ERROR -1
Expand Down
39 changes: 39 additions & 0 deletions libc/nt/base.h
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@@ -0,0 +1,39 @@
#ifndef COSMOPOLITAN_LIBC_NT_BASE_H_
#define COSMOPOLITAN_LIBC_NT_BASE_H_
#include "struct/overlapped.h"
/* ░░░░
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╔────────────────────────────────────────────────────────────────▀▀▀─────────│─╗
│ cosmopolitan § new technology » string ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
COSMOPOLITAN_C_START_

typedef void (*NtOverlappedCompletionRoutine)(
uint32_t dwErrorCode, uint32_t dwNumberOfBytesTransfered,
struct NtOverlapped *lpOverlapped);


uint32_t FormatMessageW(uint32_t dwFlags, const void* lpSource, uint32_t dwMessageId, uint32_t dwLanguageId, char16_t *lpBuffer, uint32_t nSize, va_list *Arguments);
bool32 ReadDirectoryChangesW(int64_t hDirectory, void *lpBuffer, uint32_t nBufferLength, bool32 bWatchSubtree, uint32_t dwNotifyFilter, uint32_t *lpBytesReturned, struct NtOverlapped *lpOverlapped, NtOverlappedCompletionRoutine lpCompletionRoutine);

COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_NT_BASE_H_ */
13 changes: 13 additions & 0 deletions libc/nt/enum/filenotify.h
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@@ -0,0 +1,13 @@
#ifndef COSMOPOLITAN_LIBC_NT_ENUM_FILENOTIFY_H_
#define COSMOPOLITAN_LIBC_NT_ENUM_FILENOTIFY_H_

#define kNtFileNotifyChangeFileName 0x00000001
#define kNtFileNotifyChangeDirName 0x00000002
#define kNtFileNotifyChangeAttributes 0x00000004
#define kNtFileNotifyChangeSize 0x00000008
#define kNtFileNotifyChangeLastWrite 0x00000010
#define kNtFileNotifyChangeLastAccess 0x00000020
#define kNtFileNotifyChangeCreation 0x00000040
#define kNtFileNotifyChangeSecurity 0x00000100

#endif /* COSMOPOLITAN_LIBC_NT_ENUM_FILENOTIFY_H_ */
1 change: 1 addition & 0 deletions libc/nt/files.h
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Expand Up @@ -49,6 +49,7 @@ COSMOPOLITAN_C_START_
intptr_t LoadResource(int64_t hModule, int64_t hResInfo);
uint32_t SetHandleCount(uint32_t uNumber);
uint32_t GetLogicalDrives(void);
unsigned int GetDriveTypeA(const char *lpRootPathName);
uint32_t GetLogicalDriveStringsA(uint32_t nBufferLength, char *lpBuffer);
bool32 FlushFileBuffers(int64_t hFile);

Expand Down
20 changes: 20 additions & 0 deletions libc/nt/kernel32/GetDriveTypeA.S
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@@ -0,0 +1,20 @@
#include "libc/nt/codegen.h"
.imp kernel32,__imp_GetDriveTypeA,GetDriveTypeA

.text.windows
.ftrace1
GetDriveTypeA:
.ftrace2
#ifdef __x86_64__
push %rbp
mov %rsp,%rbp
mov %rdi,%rcx
sub $32,%rsp
call *__imp_GetDriveTypeA(%rip)
leave
#elif defined(__aarch64__)
mov x0,#0
#endif
ret
.endfn GetDriveTypeA,globl
.previous
18 changes: 18 additions & 0 deletions libc/nt/kernel32/ReadDirectoryChangesW.S
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@@ -0,0 +1,18 @@
#include "libc/nt/codegen.h"
.imp kernel32,__imp_ReadDirectoryChangesW,ReadDirectoryChangesW

.text.windows
.ftrace1
ReadDirectoryChanges:
.ftrace2
#ifdef __x86_64__
push %rbp
mov %rsp,%rbp
mov __imp_ReadDirectoryChangesW(%rip),%rax
jmp __sysv2nt8
#elif defined(__aarch64__)
mov x0,#0
ret
#endif
.endfn ReadDirectoryChanges,globl
.previous
2 changes: 2 additions & 0 deletions libc/nt/master.sh
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Expand Up @@ -117,6 +117,7 @@ imp 'GetCurrentProcessorNumberEx' GetCurrentProcessorNumberEx kernel32 1
imp 'GetCurrentThread' GetCurrentThread kernel32 0
imp 'GetCurrentThreadId' GetCurrentThreadId kernel32 0
imp 'GetDynamicTimeZoneInformation' GetDynamicTimeZoneInformation kernel32 1
imp 'GetDriveTypeA' GetDriveTypeA kernel32 1
imp 'GetEnvironmentStrings' GetEnvironmentStringsW kernel32 1
imp 'GetEnvironmentVariable' GetEnvironmentVariableW kernel32 3
imp 'GetExitCodeThread' GetExitCodeThread kernel32 2
Expand Down Expand Up @@ -239,6 +240,7 @@ imp 'ReadConsoleOutputCharacter' ReadConsoleOutputCharacterW kernel32 5
imp 'ReadFile' ReadFile kernel32 5
imp 'ReadFileEx' ReadFileEx kernel32 5
imp 'ReadFileScatter' ReadFileScatter kernel32 5
imp 'ReadDirectoryChanges' ReadDirectoryChangesW kernel32 8
imp 'RegisterWaitForSingleObject' RegisterWaitForSingleObject kernel32 6
imp 'ReleaseMutex' ReleaseMutex kernel32 1
imp 'ReleaseSRWLockExclusive' ReleaseSRWLockExclusive kernel32 1
Expand Down
1 change: 1 addition & 0 deletions libc/nt/windows.h
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Expand Up @@ -94,6 +94,7 @@ int WideCharToMultiByte(unsigned int CodePage, uint32_t dwFlags,
uint16_t *lpWideCharStr, int cchWideChar,
char *lpMultiByteStr, int cbMultiByte,
uint16_t *lpDefaultChar, int *lpUsedDefaultChar);
int MultiByteToWideChar(unsigned int CodePage, uint32_t dwFlags, const char *lpMultiByteStr, int cbMultiByte, uint16_t *lpWideCharStr, int cchWideChar);

COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_NT_WINDOWS_H_ */