custom_provider.c

/*****************************************************************************
 *                                                                           *
 * Copyright (c) 2006-2016 Unified Automation GmbH. All rights reserved.     *
 *                                                                           *
 * Software License Agreement ("SLA") Version 2.6                            *
 *                                                                           *
 * Unless explicitly acquired and licensed from Licensor under another       *
 * license, the contents of this file are subject to the Software License    *
 * Agreement ("SLA") Version 2.6, or subsequent versions as allowed by the   *
 * SLA, and You may not copy or use this file in either source code or       *
 * executable form, except in compliance with the terms and conditions of    *
 * the SLA.                                                                  *
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 * IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED,       *
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#include <uaserver/addressspace/addressspace.h>
#include <memory/memory.h>
#include <uaserver/provider/provider.h>
#include <uaserver/valuestore/valuestore.h>
#include <trace/trace.h>

#include <uaserver/server_config.h>
#ifdef UA_AUTHORIZATION_SUPPORT
# include <uaserver/session/authorization/authorization.h>
#endif

#ifdef ENABLE_SERVICE_READ
# include "custom_provider_read.h"
#endif
#ifdef ENABLE_SERVICE_WRITE
# include "custom_provider_write.h"
#endif
#ifdef ENABLE_SERVICE_SUBSCRIPTION
# include "custom_provider_subscription.h"
#endif

#include "custom_provider_nodes.h"
#include "custom_provider.h"

uint16_t g_custom_provider_nsidx;
static struct ua_variant g_memorystore_values[3];
struct ua_memorystore g_memorystore;
uint32_t g_custom_provider_values[3];


/* cleanup resources allocated by the custom provider */
static void custom_provider_cleanup(struct uaprovider *ctx)
{
    UA_UNUSED(ctx);

    ua_memorystore_clear(&g_memorystore);

    return;
}
int custom_provider_init(struct uaprovider *ctx)
{
    struct ua_addressspace_config config;
    int ret;

    ua_memset(&config, 0, sizeof(config));
    config.nsidx          = UA_NSIDX_INVALID; /* assign auto index */
    config.max_variables  = 10;
    config.max_references = 20;
    config.max_strings    = 10;

    /* register new namespace */
    ret = ua_addressspace_register(
        "http://www.unifiedautomation.com/CustomServer/",
        &config,
        UA_INDEX_HASHTABLE);

    if (ret < 0) return ret;
    g_custom_provider_nsidx = (uint16_t) ret;
    ret = uaprovider_register_nsindex(ctx, g_custom_provider_nsidx);
    if (ret != 0) return ret;
    /* initialize memorystore context */
    ret = ua_memorystore_init(&g_memorystore, 0, g_memorystore_values, countof(g_memorystore_values));
    if (ret != 0) return ret;
    ret = custom_provider_create_nodes();
    if (ret != 0) return ret;
#ifdef ENABLE_SERVICE_READ
    ctx->read            = custom_provider_read;
#endif
#ifdef ENABLE_SERVICE_WRITE
    ctx->write           = custom_provider_write;
#endif
#ifdef ENABLE_SERVICE_SUBSCRIPTION
    ctx->add_item        = custom_provider_add_item;
    ctx->remove_item     = custom_provider_remove_item;
    ctx->modify_item     = custom_provider_modify_item;
    ctx->subscribe       = custom_provider_subscribe;
#endif

#ifdef ENABLE_SERVICE_READ
    ctx->read            = custom_provider_read;
#endif
#ifdef ENABLE_SERVICE_WRITE
    ctx->write           = custom_provider_write;
#endif
#ifdef ENABLE_SERVICE_SUBSCRIPTION
    ctx->add_item        = custom_provider_add_item;
    ctx->remove_item     = custom_provider_remove_item;
    ctx->modify_item     = custom_provider_modify_item;
    ctx->subscribe       = custom_provider_subscribe;
#endif
    ctx->cleanup         = custom_provider_cleanup;
    return ret;
}