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egl: Factor out the eglTerminate write-lock pattern

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Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18713>
This commit is contained in:
Adam Jackson
2022-09-20 14:14:51 -04:00
committed by Marge Bot
parent b2ee2de1fb
commit eb39198fe2
1 changed files with 15 additions and 4 deletions
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src/egl/main/eglapi.c
+15 -4
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@@ -307,6 +307,20 @@ _eglLockDisplay(EGLDisplay dpy)
return disp;
}
/**
* Lookup and write-lock a display. Should only be called from
* eglTerminate.
*/
static _EGLDisplay *
_eglWriteLockDisplay(EGLDisplay dpy)
{
_EGLDisplay *disp = _eglLookupDisplay(dpy);
if (disp) {
u_rwlock_wrlock(&disp->TerminateLock);
simple_mtx_lock(&disp->Mutex);
}
return disp;
}
/**
* Unlock a display.
@@ -757,16 +771,13 @@ eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
EGLBoolean EGLAPIENTRY
eglTerminate(EGLDisplay dpy)
{
_EGLDisplay *disp = _eglLookupDisplay(dpy);
_EGLDisplay *disp = _eglWriteLockDisplay(dpy);
_EGL_FUNC_START(disp, EGL_OBJECT_DISPLAY_KHR, NULL);
if (!disp)
RETURN_EGL_ERROR(NULL, EGL_BAD_DISPLAY, EGL_FALSE);
u_rwlock_wrlock(&disp->TerminateLock);
simple_mtx_lock(&disp->Mutex);
if (disp->Initialized) {
disp->Driver->Terminate(disp);
/* do not reset disp->Driver */