php-src/win32/nice.c
Peter Kokot 92ac598aab Remove local variables
This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.

A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.

This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.

With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.

Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files.  All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.
2019-02-03 21:03:00 +01:00

84 lines
3.3 KiB
C

/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Kalle Sommer Nielsen <kalle@php.net> |
+----------------------------------------------------------------------+
*/
#include <php.h>
#include "nice.h"
/*
* Basic Windows implementation for the nice() function.
*
* This implementation uses SetPriorityClass() as a backend for defining
* a process priority.
*
* The following values of inc, defines the value sent to SetPriorityClass():
*
* +-----------------------+-----------------------------+
* | Expression | Priority type |
* +-----------------------+-----------------------------+
* | priority < -9 | HIGH_PRIORITY_CLASS |
* +-----------------------+-----------------------------+
* | priority < -4 | ABOVE_NORMAL_PRIORITY_CLASS |
* +-----------------------+-----------------------------+
* | priority > 4 | BELOW_NORMAL_PRIORITY_CLASS |
* +-----------------------+-----------------------------+
* | priority > 9 | IDLE_PRIORITY_CLASS |
* +-----------------------+-----------------------------+
*
* If a value is between -4 and 4 (inclusive), then the priority will be set
* to NORMAL_PRIORITY_CLASS.
*
* These values tries to mimic that of the UNIX version of nice().
*
* This is applied to the main process, not per thread, although this could
* be implemented using SetThreadPriority() at one point.
*
* Note, the following priority classes are left out with intention:
*
* . REALTIME_PRIORITY_CLASS
* Realtime priority class requires special system permissions to set, and
* can be dangerous in certain cases.
*
* . PROCESS_MODE_BACKGROUND_BEGIN
* . PROCESS_MODE_BACKGROUND_END
* Process mode is not covered because it can easily forgotten to be changed
* back and can cause unforseen side effects that is hard to debug. Besides
* that, these do generally not really fit into making a Windows somewhat
* compatible nice() function.
*/
PHPAPI int nice(zend_long p)
{
DWORD dwFlag = NORMAL_PRIORITY_CLASS;
if (p < -9) {
dwFlag = HIGH_PRIORITY_CLASS;
} else if (p < -4) {
dwFlag = ABOVE_NORMAL_PRIORITY_CLASS;
} else if (p > 9) {
dwFlag = IDLE_PRIORITY_CLASS;
} else if (p > 4) {
dwFlag = BELOW_NORMAL_PRIORITY_CLASS;
}
if (!SetPriorityClass(GetCurrentProcess(), dwFlag)) {
return -1;
}
return 0;
}