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Annotation of embedaddon/bmon/src/element_cfg.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  * element_cfg.c               Element Configuration
        !             3:  *
        !             4:  * Copyright (c) 2001-2013 Thomas Graf <tgraf@suug.ch>
        !             5:  * Copyright (c) 2013 Red Hat, Inc.
        !             6:  *
        !             7:  * Permission is hereby granted, free of charge, to any person obtaining a
        !             8:  * copy of this software and associated documentation files (the "Software"),
        !             9:  * to deal in the Software without restriction, including without limitation
        !            10:  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
        !            11:  * and/or sell copies of the Software, and to permit persons to whom the
        !            12:  * Software is furnished to do so, subject to the following conditions:
        !            13:  *
        !            14:  * The above copyright notice and this permission notice shall be included
        !            15:  * in all copies or substantial portions of the Software.
        !            16:  *
        !            17:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
        !            18:  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
        !            19:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
        !            20:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
        !            21:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
        !            22:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
        !            23:  * DEALINGS IN THE SOFTWARE.
        !            24:  */
        !            25: 
        !            26: #include <bmon/bmon.h>
        !            27: #include <bmon/conf.h>
        !            28: #include <bmon/element.h>
        !            29: #include <bmon/element_cfg.h>
        !            30: #include <bmon/utils.h>
        !            31: 
        !            32: static LIST_HEAD(cfg_list);
        !            33: 
        !            34: struct element_cfg *element_cfg_alloc(const char *name)
        !            35: {
        !            36:        struct element_cfg *ec;
        !            37: 
        !            38:        if ((ec = element_cfg_lookup(name))) {
        !            39:                ec->ec_refcnt++;
        !            40:                return ec;
        !            41:        }
        !            42: 
        !            43:        ec = xcalloc(1, sizeof(*ec));
        !            44:        ec->ec_name = strdup(name);
        !            45:        ec->ec_refcnt = 1;
        !            46: 
        !            47:        list_add_tail(&ec->ec_list, &cfg_list);
        !            48: 
        !            49:        return ec;
        !            50: }
        !            51: 
        !            52: struct element_cfg *element_cfg_create(const char *name)
        !            53: {
        !            54:        struct element_cfg *cfg;
        !            55: 
        !            56:        if (!(cfg = element_cfg_lookup(name)))
        !            57:                cfg = element_cfg_alloc(name);
        !            58: 
        !            59:        return cfg;
        !            60: }
        !            61: 
        !            62: static void __element_cfg_free(struct element_cfg *ec)
        !            63: {
        !            64:        list_del(&ec->ec_list);
        !            65:        
        !            66:        xfree(ec->ec_name);
        !            67:        xfree(ec->ec_description);
        !            68:        xfree(ec);
        !            69: }
        !            70: 
        !            71: void element_cfg_free(struct element_cfg *ec)
        !            72: {
        !            73:        if (!ec || --ec->ec_refcnt)
        !            74:                return;
        !            75: 
        !            76:        __element_cfg_free(ec);
        !            77: }
        !            78: 
        !            79: struct element_cfg *element_cfg_lookup(const char *name)
        !            80: {
        !            81:        struct element_cfg *ec;
        !            82: 
        !            83:        list_for_each_entry(ec, &cfg_list, ec_list)
        !            84:                if (!strcmp(name, ec->ec_name))
        !            85:                        return ec;
        !            86:        
        !            87:        return NULL;
        !            88: }
        !            89: 
        !            90: static void __exit __element_cfg_exit(void)
        !            91: {
        !            92:        struct element_cfg *ec, *n;
        !            93: 
        !            94:        list_for_each_entry_safe(ec, n, &cfg_list, ec_list)
        !            95:                __element_cfg_free(ec);
        !            96: }