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/* miscfuncs.h: main Cygwin header file.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _MISCFUNCS_H
#define _MISCFUNCS_H
#include <dinput.h>
#define likely(X) __builtin_expect (!!(X), 1)
#define unlikely(X) __builtin_expect (!!(X), 0)
/* Check for Alt+Numpad keys in a console input record. These are used to
enter codepoints not available in the current keyboard layout For details
see http://www.fileformat.info/tip/microsoft/enter_unicode.htm */
static inline bool
is_alt_numpad_key (PINPUT_RECORD pirec)
{
/* Remove lock key state from ControlKeyState. Do not remove enhanced key
state since it helps to distinguish between cursor (EK) and numpad keys
(non-EK). */
DWORD ctrl_state = pirec->Event.KeyEvent.dwControlKeyState
& ~(CAPSLOCK_ON | NUMLOCK_ON | SCROLLLOCK_ON);
return pirec->Event.KeyEvent.uChar.UnicodeChar == 0
&& ctrl_state == LEFT_ALT_PRESSED
&& pirec->Event.KeyEvent.wVirtualScanCode >= DIK_NUMPAD7
&& pirec->Event.KeyEvent.wVirtualScanCode <= DIK_NUMPAD0
&& pirec->Event.KeyEvent.wVirtualScanCode != DIK_SUBTRACT;
}
/* Event for left Alt, with a non-zero character, comes from Alt+Numpad
key sequence. e.g. <left-alt> 233 => é This is typically handled
as the key up event after releasing the Alt key. */
static inline bool
is_alt_numpad_event (PINPUT_RECORD pirec)
{
return pirec->Event.KeyEvent.uChar.UnicodeChar != 0
&& pirec->Event.KeyEvent.wVirtualKeyCode == VK_MENU
&& pirec->Event.KeyEvent.wVirtualScanCode == 0x38;
}
int winprio_to_nice (DWORD);
DWORD nice_to_winprio (int &);
bool create_pipe (PHANDLE, PHANDLE, LPSECURITY_ATTRIBUTES, DWORD);
BOOL CreatePipeOverlapped (PHANDLE read_handle, PHANDLE write_handle,
LPSECURITY_ATTRIBUTES sa);
BOOL ReadPipeOverlapped (HANDLE h, PVOID buf, DWORD len,
LPDWORD ret_len, DWORD timeout);
BOOL WritePipeOverlapped (HANDLE h, LPCVOID buf, DWORD len,
LPDWORD ret_len, DWORD timeout);
/* class for per-line reading using native functions. The caller provides
the file as an POBJECT_ATTRIBUTES, and the buffer space. */
class NT_readline
{
HANDLE fh;
PCHAR buf;
PCHAR got;
PCHAR end;
ULONG buflen;
ULONG len;
ULONG line;
public:
NT_readline () : fh (NULL) {}
bool init (POBJECT_ATTRIBUTES attr, char *buf, ULONG buflen);
PCHAR gets ();
void close () { if (fh) NtClose (fh); fh = NULL; }
~NT_readline () { close (); }
};
extern "C" void yield ();
#define import_address(x) __import_address ((void *)(x))
void * __import_address (void *);
#define caller_return_address() \
__caller_return_address (__builtin_return_address (0))
void * __caller_return_address (void *);
void backslashify (const char *, char *, bool);
void slashify (const char *, char *, bool);
#define isslash(c) ((c) == '/')
extern void transform_chars (PWCHAR, PWCHAR);
extern inline void
transform_chars (PUNICODE_STRING upath, USHORT start_idx)
{
transform_chars (upath->Buffer + start_idx,
upath->Buffer + upath->Length / sizeof (WCHAR) - 1);
}
PWCHAR transform_chars_af_unix (PWCHAR, const char *, __socklen_t);
/* Get handle count of an object. */
ULONG get_obj_handle_count (HANDLE h);
/* Memory checking */
int check_invalid_virtual_addr (const void *s, unsigned sz);
ssize_t check_iovec (const struct iovec *, int, bool);
#define check_iovec_for_read(a, b) check_iovec ((a), (b), false)
#define check_iovec_for_write(a, b) check_iovec ((a), (b), true)
extern PVOID create_new_main_thread_stack (PVOID &allocationbase);
extern "C" DWORD pthread_wrapper (PVOID arg);
extern "C" HANDLE CygwinCreateThread (LPTHREAD_START_ROUTINE thread_func,
PVOID thread_arg, PVOID stackaddr,
ULONG stacksize, ULONG guardsize,
DWORD creation_flags, LPDWORD thread_id);
void SetThreadName (DWORD dwThreadID, const char* threadName);
WORD __get_cpus_per_group (void);
WORD __get_group_count (void);
#endif /*_MISCFUNCS_H*/
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