postmaster: Introduce variadic btmask_all_except()

Upcoming patches would otherwise need btmask_all_except3().

Reviewed-by: Heikki Linnakangas <[email protected]>
Discussion: https://postgr.es/m/w3z6w3g4aovivs735nk4pzjhmegntecesm3kktpebchegm5o53@aonnq2kn27xi

diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index c65288f5c15f34864e59d70668adcdfa9150cd6c..6da4cfe6082bee2b08556cff7cccd411c9b6c20f 100644 (file)
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -164,23 +164,20 @@ btmask_del(BackendTypeMask mask, BackendType t)
 }
 
 static inline BackendTypeMask
-btmask_all_except(BackendType t)
+btmask_all_except_n(int nargs, BackendType *t)
 {
    BackendTypeMask mask = BTYPE_MASK_ALL;
 
-   mask = btmask_del(mask, t);
+   for (int i = 0; i < nargs; i++)
+       mask = btmask_del(mask, t[i]);
    return mask;
 }
 
-static inline BackendTypeMask
-btmask_all_except2(BackendType t1, BackendType t2)
-{
-   BackendTypeMask mask = BTYPE_MASK_ALL;
-
-   mask = btmask_del(mask, t1);
-   mask = btmask_del(mask, t2);
-   return mask;
-}
+#define btmask_all_except(...) \
+   btmask_all_except_n( \
+       lengthof(((BackendType[]){__VA_ARGS__})), \
+       (BackendType[]){__VA_ARGS__} \
+   )
 
 static inline bool
 btmask_contains(BackendTypeMask mask, BackendType t)
@@ -2979,7 +2976,7 @@ PostmasterStateMachine(void)
         * left by now anyway; what we're really waiting for is walsenders and
         * archiver.
         */
-       if (CountChildren(btmask_all_except2(B_LOGGER, B_DEAD_END_BACKEND)) == 0)
+       if (CountChildren(btmask_all_except(B_LOGGER, B_DEAD_END_BACKEND)) == 0)
        {
            UpdatePMState(PM_WAIT_DEAD_END);
            ConfigurePostmasterWaitSet(false);