diff options
Diffstat (limited to 'src/backend/utils/init/postinit.c')
| -rw-r--r-- | src/backend/utils/init/postinit.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c index 2b65ef3deb0..4a207a73917 100644 --- a/src/backend/utils/init/postinit.c +++ b/src/backend/utils/init/postinit.c @@ -58,7 +58,7 @@ #include "utils/acl.h" #include "utils/builtins.h" #include "utils/fmgroids.h" -#include "utils/guc.h" +#include "utils/guc_hooks.h" #include "utils/memutils.h" #include "utils/pg_locale.h" #include "utils/portal.h" @@ -564,6 +564,54 @@ InitializeMaxBackends(void) } /* + * GUC check_hook for max_connections + */ +bool +check_max_connections(int *newval, void **extra, GucSource source) +{ + if (*newval + autovacuum_max_workers + 1 + + max_worker_processes + max_wal_senders > MAX_BACKENDS) + return false; + return true; +} + +/* + * GUC check_hook for autovacuum_max_workers + */ +bool +check_autovacuum_max_workers(int *newval, void **extra, GucSource source) +{ + if (MaxConnections + *newval + 1 + + max_worker_processes + max_wal_senders > MAX_BACKENDS) + return false; + return true; +} + +/* + * GUC check_hook for max_worker_processes + */ +bool +check_max_worker_processes(int *newval, void **extra, GucSource source) +{ + if (MaxConnections + autovacuum_max_workers + 1 + + *newval + max_wal_senders > MAX_BACKENDS) + return false; + return true; +} + +/* + * GUC check_hook for max_wal_senders + */ +bool +check_max_wal_senders(int *newval, void **extra, GucSource source) +{ + if (MaxConnections + autovacuum_max_workers + 1 + + max_worker_processes + *newval > MAX_BACKENDS) + return false; + return true; +} + +/* * Early initialization of a backend (either standalone or under postmaster). * This happens even before InitPostgres. * |