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Vita: fix thread priority Add support for thread name and stack size

This commit is contained in:
Ivan Epifanov 2021-09-20 14:08:01 +03:00 committed by Sam Lantinga
parent 21c1082786
commit ddcd847c8e
1 changed files with 49 additions and 16 deletions
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65
src/thread/vita/SDL_systhread.c
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@ -34,6 +34,15 @@
#include <psp2/types.h> #include <psp2/types.h>
#include <psp2/kernel/threadmgr.h> #include <psp2/kernel/threadmgr.h>
#define VITA_THREAD_STACK_SIZE_MIN 0x1000 // 4KiB
#define VITA_THREAD_STACK_SIZE_MAX 0x2000000 // 32MiB
#define VITA_THREAD_STACK_SIZE_DEFAULT 0x10000 // 64KiB
#define VITA_THREAD_NAME_MAX 32
#define VITA_THREAD_PRIORITY_LOW 191
#define VITA_THREAD_PRIORITY_NORMAL 160
#define VITA_THREAD_PRIORITY_HIGH 112
#define VITA_THREAD_PRIORITY_TIME_CRITICAL 64
static int ThreadEntry(SceSize args, void *argp) static int ThreadEntry(SceSize args, void *argp)
{ {
@ -43,17 +52,34 @@ static int ThreadEntry(SceSize args, void *argp)
int SDL_SYS_CreateThread(SDL_Thread *thread) int SDL_SYS_CreateThread(SDL_Thread *thread)
{ {
SceKernelThreadInfo info; char thread_name[VITA_THREAD_NAME_MAX];
int priority = 32; size_t stack_size = VITA_THREAD_STACK_SIZE_DEFAULT;
/* Set priority of new thread to the same as the current thread */ SDL_strlcpy(thread_name, "SDL thread", VITA_THREAD_NAME_MAX);
info.size = sizeof(SceKernelThreadInfo); if (thread->name) {
if (sceKernelGetThreadInfo(sceKernelGetThreadId(), &info) == 0) { SDL_strlcpy(thread_name, thread->name, VITA_THREAD_NAME_MAX);
priority = info.currentPriority;
} }
thread->handle = sceKernelCreateThread("SDL thread", ThreadEntry, if (thread->stacksize) {
priority, 0x10000, 0, 0, NULL); if (thread->stacksize < VITA_THREAD_STACK_SIZE_MIN) {
thread->stacksize = VITA_THREAD_STACK_SIZE_MIN;
}
if (thread->stacksize > VITA_THREAD_STACK_SIZE_MAX) {
thread->stacksize = VITA_THREAD_STACK_SIZE_MAX;
}
stack_size = thread->stacksize;
}
/* Create new thread with the same priority as the current thread */
thread->handle = sceKernelCreateThread(
thread_name, // name
ThreadEntry, // function to run
0, // priority. 0 means priority of calling thread
stack_size, // stack size
0, // attibutes. always 0
0, // cpu affinity mask. 0 = all CPUs
NULL // opt. always NULL
);
if (thread->handle < 0) { if (thread->handle < 0) {
return SDL_SetError("sceKernelCreateThread() failed"); return SDL_SetError("sceKernelCreateThread() failed");
@ -92,17 +118,24 @@ void SDL_SYS_KillThread(SDL_Thread *thread)
int SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority) int SDL_SYS_SetThreadPriority(SDL_ThreadPriority priority)
{ {
int value; int value = VITA_THREAD_PRIORITY_NORMAL;
if (priority == SDL_THREAD_PRIORITY_LOW) { switch(priority) {
value = 19; case SDL_THREAD_PRIORITY_LOW:
} else if (priority == SDL_THREAD_PRIORITY_HIGH) { value = VITA_THREAD_PRIORITY_LOW;
value = -20; break;
} else { case SDL_THREAD_PRIORITY_NORMAL:
value = 0; value = VITA_THREAD_PRIORITY_NORMAL;
break;
case SDL_THREAD_PRIORITY_HIGH:
value = VITA_THREAD_PRIORITY_HIGH;
break;
case SDL_THREAD_PRIORITY_TIME_CRITICAL:
value = VITA_THREAD_PRIORITY_TIME_CRITICAL;
break;
} }
return sceKernelChangeThreadPriority(sceKernelGetThreadId(),value); return sceKernelChangeThreadPriority(0, value);
} }