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Linux: fix thread priority #14252

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Linux: fix thread priority #14252

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8163aaf
Linux: fix thread priority
hoholee12 Jul 23, 2023
e5c1fea
oops
hoholee12 Jul 23, 2023
cf785e2
oops
hoholee12 Jul 23, 2023
3d1f527
FIx Cirrus Linux build not compiling
hoholee12 Jul 24, 2023
45023d2
Merge branch 'master' into master
elad335 Jul 24, 2023
db4c960
Root user gets proper privilege
hoholee12 Jul 25, 2023
445bae1
Root user gets proper privilege
hoholee12 Jul 25, 2023
b9257cf
remove spaces
hoholee12 Jul 25, 2023
3795753
Merge branch 'master' into master
elad335 Jul 25, 2023
4300857
remove nonroot
hoholee12 Jul 25, 2023
ca381b0
Merge branch 'master' of https://github.com/hoholee12/rpcs3
hoholee12 Jul 25, 2023
0ce786c
fix
hoholee12 Jul 25, 2023
328d73c
Merge branch 'master' into master
hoholee12 Jul 28, 2023
4695e9c
Merge branch 'master' into master
hoholee12 Sep 4, 2023
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20 changes: 20 additions & 0 deletions Utilities/Thread.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,8 @@ DYNAMIC_IMPORT_RENAME("Kernel32.dll", SetThreadDescriptionImport, "SetThreadDesc
#ifdef __linux__
#include <sys/timerfd.h>
#include <unistd.h>
#include <sys/syscall.h>
#define gettid() syscall(SYS_gettid)
#endif

#if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
Expand Down Expand Up @@ -2926,6 +2928,24 @@ void thread_ctrl::set_native_priority(int priority)
{
sig_log.error("SetThreadPriority() failed: %s", fmt::win_error{GetLastError(), nullptr});
}
#elif defined(__linux__)
// available niceness for root: -20~19
id_t threadpid = gettid();
uid_t euid = geteuid();

if (euid == 0)
{
int linuxprio = 0;
if (priority > 0)
linuxprio = -6;
else if (priority < 0)
linuxprio = 6;

if (int err = setpriority(PRIO_PROCESS, threadpid, linuxprio))
{
sig_log.error("setpriority(%d, %d) failed: %d", threadpid, linuxprio, err);
}
}
#else
int policy;
struct sched_param param;
Expand Down