diff -r 21274e5950af -r a1f4cb076d2f src/server/daemon/resourcepool.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/server/daemon/resourcepool.h	Sat Sep 24 16:26:10 2022 +0200
@@ -0,0 +1,125 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2021 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef WS_RESOURCEPOOL_H
+#define WS_RESOURCEPOOL_H
+
+#include "../public/nsapi.h"
+
+#include "config.h"
+
+#include <pthread.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ResourceDataPrivate ResourceDataPrivate;
+
+struct ResourceDataPrivate {
+    ResourceData data;
+    
+    /*
+     * the void* pointer returned by respool->type->createresource
+     * 
+     * ResourceData.data contains the pointer returned by
+     * respool->type->getresourcedata(resdata))
+     */
+    void *resdata;
+};
+
+struct ResourcePool {
+    /*
+     * Memory pool
+     */
+    pool_handle_t *pool;
+    
+    /*
+     * Type information of this resource pool
+     * The type object is stored in the registered types map and should not
+     * be freed, when the resource pool is destroyed
+     */
+    ResourceType *type;
+    
+    /*
+     * Data returned by the ResourceType init function
+     * When the pool is destroyed, the data should be passed to
+     * ResourceType.destroy
+     */
+    void *data;
+    
+    pthread_mutex_t lock;
+    pthread_cond_t available;
+    
+    /*
+     * Array of available resources
+     * each entry is created with ResourceType.createresource
+     */
+    ResourceDataPrivate **resources;
+    
+    /*
+     * Allocated size of the resources array
+     */
+    size_t resalloc;
+    
+    /*
+     * Number of currently available resources in the array
+     */
+    size_t numresources;
+    
+    
+    /*
+     * Number of created resources (in use + available)
+     */
+    size_t numcreated;
+    
+    /*
+     * resource pool min parameter
+     */
+    int min;
+    
+    /*
+     * resource pool max parameter
+     */
+    int max;
+};
+
+int init_resource_pools(void);
+
+int resourcepool_new(ServerConfiguration *cfg, scstr_t type, scstr_t name, ConfigNode *node);
+
+void resourcepool_destroy_resource(ResourceDataPrivate *res);
+
+void resourcepool_destroy(ResourcePool *respool);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* WS_RESOURCEPOOL_H */
+