SDL Wiki
(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


Sets the priority (not nice level) and scheduling policy for a thread.


int SDL_LinuxSetThreadPriorityAndPolicy(Sint64 threadID, int sdlPriority, int schedPolicy);

Function Parameters

threadID The Unix thread ID to change priority of.
sdlPriority The new SDL_ThreadPriority value.
schedPolicy The new scheduling policy (SCHED_FIFO, SCHED_RR, SCHED_OTHER, etc...)

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.


This uses setpriority() if possible, and RealtimeKit if available.


This function is available since SDL 3.0.0.

CategoryAPI, CategoryLinux

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