1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
* Copyright (C) 2021+ WarheadCore <https://github.com/WarheadCore>
*/
#include "ProcessPriority.h"
#include "Log.h"
#ifdef _WIN32 // Windows
#include <Windows.h>
#elif defined(__linux__)
#include <sched.h>
#include <sys/resource.h>
#define PROCESS_HIGH_PRIORITY -15 // [-20, 19], default is 0
#endif
void SetProcessPriority(std::string const& logChannel, uint32 affinity, bool highPriority)
{
///- Handle affinity for multiple processors and process priority
#ifdef _WIN32 // Windows
HANDLE hProcess = GetCurrentProcess();
if (affinity > 0)
{
ULONG_PTR appAff;
ULONG_PTR sysAff;
if (GetProcessAffinityMask(hProcess, &appAff, &sysAff))
{
// remove non accessible processors
ULONG_PTR currentAffinity = affinity & appAff;
if (!currentAffinity)
{
LOG_ERROR(logChannel, "Processors marked in UseProcessors bitmask (hex) %x are not accessible. Accessible processors bitmask (hex): %x", affinity, appAff);
}
else if (SetProcessAffinityMask(hProcess, currentAffinity))
{
LOG_INFO(logChannel, "Using processors (bitmask, hex): %x", currentAffinity);
}
else
{
LOG_ERROR(logChannel, "Can't set used processors (hex): %x", currentAffinity);
}
}
}
if (highPriority)
{
if (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS))
{
LOG_INFO(logChannel, "Process priority class set to HIGH");
}
else
{
LOG_ERROR(logChannel, "Can't set process priority class.");
}
}
#elif defined(__linux__) // Linux
if (affinity > 0)
{
cpu_set_t mask;
CPU_ZERO(&mask);
for (unsigned int i = 0; i < sizeof(affinity) * 8; ++i)
if (affinity & (1 << i))
{
CPU_SET(i, &mask);
}
if (sched_setaffinity(0, sizeof(mask), &mask))
{
LOG_ERROR(logChannel, "Can't set used processors (hex): %x, error: %s", affinity, strerror(errno));
}
else
{
CPU_ZERO(&mask);
sched_getaffinity(0, sizeof(mask), &mask);
LOG_INFO(logChannel, "Using processors (bitmask, hex): %lx", *(__cpu_mask*)(&mask));
}
}
if (highPriority)
{
if (setpriority(PRIO_PROCESS, 0, PROCESS_HIGH_PRIORITY))
{
LOG_ERROR(logChannel, "Can't set process priority class, error: %s", strerror(errno));
}
else
{
LOG_INFO(logChannel, "Process priority class set to %i", getpriority(PRIO_PROCESS, 0));
}
}
#else
// Suppresses unused argument warning for all other platforms
(void)logChannel;
(void)affinity;
(void)highPriority;
#endif
}
|
