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efa5401ea9
If a realtime policy is selected, set the '(18) priority' field to the negated sched_priority minus one. If SCHED_IDLE is selected, set it to the lowest priority 39. Also set '(19) nice' to the originally requested nice value. Ensure consistence with the current Windows priority in all cases. Move the sched_priority from/to Windows priority mapping from sched_get/setparam() to new functions in miscfuncs.cc. Signed-off-by: Christian Franke <christian.franke@t-online.de>
110 lines
3.5 KiB
C++
110 lines
3.5 KiB
C++
/* miscfuncs.h: Internal functions not having a better home
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef _MISCFUNCS_H
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#define _MISCFUNCS_H
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#include <dinput.h>
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#define likely(X) __builtin_expect (!!(X), 1)
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#define unlikely(X) __builtin_expect (!!(X), 0)
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/* Check for Alt+Numpad keys in a console input record. These are used to
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enter codepoints not available in the current keyboard layout For details
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see http://www.fileformat.info/tip/microsoft/enter_unicode.htm */
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static inline bool
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is_alt_numpad_key (PINPUT_RECORD pirec)
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{
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/* Remove lock key state from ControlKeyState. Do not remove enhanced key
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state since it helps to distinguish between cursor (EK) and numpad keys
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(non-EK). */
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DWORD ctrl_state = pirec->Event.KeyEvent.dwControlKeyState
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& ~(CAPSLOCK_ON | NUMLOCK_ON | SCROLLLOCK_ON);
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return pirec->Event.KeyEvent.uChar.UnicodeChar == 0
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&& ctrl_state == LEFT_ALT_PRESSED
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&& pirec->Event.KeyEvent.wVirtualScanCode >= DIK_NUMPAD7
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&& pirec->Event.KeyEvent.wVirtualScanCode <= DIK_NUMPAD0
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&& pirec->Event.KeyEvent.wVirtualScanCode != DIK_SUBTRACT;
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}
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/* Event for left Alt, with a non-zero character, comes from Alt+Numpad
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key sequence. e.g. <left-alt> 233 => é This is typically handled
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as the key up event after releasing the Alt key. */
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static inline bool
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is_alt_numpad_event (PINPUT_RECORD pirec)
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{
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return pirec->Event.KeyEvent.uChar.UnicodeChar != 0
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&& pirec->Event.KeyEvent.wVirtualKeyCode == VK_MENU
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&& pirec->Event.KeyEvent.wVirtualScanCode == 0x38;
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}
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int winprio_to_nice (DWORD prio, bool batch = false);
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DWORD nice_to_winprio (int &nice, bool batch = false);
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int winprio_to_schedprio (DWORD prio);
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DWORD schedprio_to_winprio (int schedprio);
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bool set_and_check_winprio (HANDLE proc, DWORD prio, bool set = true);
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bool create_pipe (PHANDLE, PHANDLE, LPSECURITY_ATTRIBUTES, DWORD);
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BOOL CreatePipeOverlapped (PHANDLE read_handle, PHANDLE write_handle,
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LPSECURITY_ATTRIBUTES sa);
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BOOL ReadPipeOverlapped (HANDLE h, PVOID buf, DWORD len,
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LPDWORD ret_len, DWORD timeout);
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BOOL WritePipeOverlapped (HANDLE h, LPCVOID buf, DWORD len,
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LPDWORD ret_len, DWORD timeout);
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/* class for per-line reading using native functions. The caller provides
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the file as an POBJECT_ATTRIBUTES, and the buffer space. */
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class NT_readline
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{
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HANDLE fh;
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PCHAR buf;
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PCHAR got;
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PCHAR end;
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ULONG buflen;
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ULONG len;
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ULONG line;
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public:
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NT_readline () : fh (NULL) {}
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bool init (POBJECT_ATTRIBUTES attr, char *buf, ULONG buflen);
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PCHAR gets ();
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void close () { if (fh) NtClose (fh); fh = NULL; }
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~NT_readline () { close (); }
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};
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extern "C" void yield ();
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void backslashify (const char *, char *, bool);
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void slashify (const char *, char *, bool);
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#define isslash(c) ((c) == '/')
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extern void transform_chars (PWCHAR, PWCHAR);
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extern inline void
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transform_chars (PUNICODE_STRING upath, USHORT start_idx)
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{
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transform_chars (upath->Buffer + start_idx,
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upath->Buffer + upath->Length / sizeof (WCHAR) - 1);
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}
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PWCHAR transform_chars_af_unix (PWCHAR, const char *, __socklen_t);
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/* Get handle count of an object. */
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ULONG get_obj_handle_count (HANDLE h);
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ssize_t check_iovec (const struct iovec *, int, bool);
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#define check_iovec_for_read(a, b) check_iovec ((a), (b), false)
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#define check_iovec_for_write(a, b) check_iovec ((a), (b), true)
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void SetThreadName (DWORD dwThreadID, const char* threadName);
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WORD __get_cpus_per_group (void);
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WORD __get_group_count (void);
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#endif /*_MISCFUNCS_H*/
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