Re-Sort Cleanup of event io on shutdown

[citadel.git] / citadel / serv_extensions.c

diff --git a/citadel/serv_extensions.c b/citadel/serv_extensions.c
index 4f2ddfa1fb38b707b2764a6340fc6834727b0fb7..74eb0c5bda2ab3b117f6ecee6722da8950425195 100644 (file)
--- a/citadel/serv_extensions.c
+++ b/citadel/serv_extensions.c
@@ -47,6 +47,7 @@
 #endif
 
 struct CleanupFunctionHook *CleanupHookTable = NULL;
+struct CleanupFunctionHook *EVCleanupHookTable = NULL;
 struct SessionFunctionHook *SessionHookTable = NULL;
 struct UserFunctionHook *UserHookTable = NULL;
 struct XmsgFunctionHook *XmsgHookTable = NULL;
@@ -261,6 +262,7 @@ void CtdlUnregisterCleanupHook(void (*fcn_ptr) (void))
        }
 }
 
+
 void CtdlDestroyCleanupHooks(void)
 {
        struct CleanupFunctionHook *cur, *p;
@@ -276,6 +278,56 @@ void CtdlDestroyCleanupHooks(void)
        CleanupHookTable = NULL;
 }
 
+void CtdlRegisterEVCleanupHook(void (*fcn_ptr) (void))
+{
+
+       struct CleanupFunctionHook *newfcn;
+
+       newfcn = (struct CleanupFunctionHook *)
+           malloc(sizeof(struct CleanupFunctionHook));
+       newfcn->next = EVCleanupHookTable;
+       newfcn->h_function_pointer = fcn_ptr;
+       EVCleanupHookTable = newfcn;
+
+       syslog(LOG_INFO, "Registered a new cleanup function\n");
+}
+
+
+void CtdlUnregisterEVCleanupHook(void (*fcn_ptr) (void))
+{
+       struct CleanupFunctionHook *cur, *p;
+
+       for (cur = EVCleanupHookTable; cur != NULL; cur = cur->next) {
+               /* This will also remove duplicates if any */
+               while (cur != NULL &&
+                               fcn_ptr == cur->h_function_pointer) {
+                       syslog(LOG_INFO, "Unregistered cleanup function\n");
+                       p = cur->next;
+                       if (cur == EVCleanupHookTable) {
+                               EVCleanupHookTable = p;
+                       }
+                       free(cur);
+                       cur = p;
+               }
+       }
+}
+
+
+void CtdlDestroyEVCleanupHooks(void)
+{
+       struct CleanupFunctionHook *cur, *p;
+
+       cur = EVCleanupHookTable;
+       while (cur != NULL)
+       {
+               syslog(LOG_INFO, "Destroyed cleanup function\n");
+               p = cur->next;
+               free(cur);
+               cur = p;
+       }
+       EVCleanupHookTable = NULL;
+}
+
 
 void CtdlRegisterSessionHook(void (*fcn_ptr) (void), int EventType)
 {