Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_RWLock - A mutex that allows read-only threads to run in parallel.
SYNOPSIS
#include <SDL3/SDL_mutex.h>
typedef struct SDL_RWLock SDL_RWLock;
DESCRIPTION
A rwlock is roughly the same concept as SDL_Mutex, but allows threads that request read-only access to
all hold the lock at the same time. If a thread requests write access, it will block until all read-only
threads have released the lock, and no one else can hold the thread (for reading or writing) at the same
time as the writing thread.
This can be more efficient in cases where several threads need to access data frequently, but changes to
that data are rare.
There are other rules that apply to rwlocks that don't apply to mutexes, about how threads are scheduled
and when they can be recursively locked. These are documented in the other rwlock functions.
AVAILABILITY
This struct is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_RWLock(3type)