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Annotation of embedaddon/bmon/src/input.c, revision 1.1.1.2

1.1       misho       1: /*
                      2:  * input.c            Input API
                      3:  *
1.1.1.2 ! misho       4:  * Copyright (c) 2001-2013 Thomas Graf <tgraf@suug.ch>
        !             5:  * Copyright (c) 2013 Red Hat, Inc.
1.1       misho       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/input.h>
1.1.1.2 ! misho      28: #include <bmon/module.h>
1.1       misho      29: #include <bmon/utils.h>
                     30: 
1.1.1.2 ! misho      31: static struct bmon_subsys input_subsys;
1.1       misho      32: 
1.1.1.2 ! misho      33: void input_register(struct bmon_module *m)
1.1       misho      34: {
1.1.1.2 ! misho      35:        module_register(&input_subsys, m);
1.1       misho      36: }
                     37: 
1.1.1.2 ! misho      38: static void activate_default(void)
1.1       misho      39: {
1.1.1.2 ! misho      40:        /*
        !            41:         * Try to activate a default input module if the user did not make
        !            42:         * a selection
        !            43:         */
        !            44:        if (!input_subsys.s_nmod) {
        !            45:                struct bmon_module *m;
1.1       misho      46: 
1.1.1.2 ! misho      47: #ifdef SYS_LINUX
        !            48:                if (!input_set("netlink"))
        !            49:                        return;
1.1       misho      50: 
1.1.1.2 ! misho      51:                if (!input_set("proc"))
        !            52:                        return;
        !            53: #endif
1.1       misho      54: 
1.1.1.2 ! misho      55: #ifdef SYS_BSD
        !            56:                if (!input_set("sysctl"))
        !            57:                        return;
1.1       misho      58: #endif
                     59: 
1.1.1.2 ! misho      60:                /* Fall back to anything that could act as default */
        !            61:                list_for_each_entry(m, &input_subsys.s_mod_list, m_list) {
        !            62:                        if (m->m_flags & BMON_MODULE_DEFAULT)
        !            63:                                if (!input_set(m->m_name))
        !            64:                                        return;
1.1       misho      65:                }
                     66: 
1.1.1.2 ! misho      67:                quit("No input module found\n");
1.1       misho      68:        }
                     69: }
                     70: 
1.1.1.2 ! misho      71: void input_read(void)
1.1       misho      72: {
1.1.1.2 ! misho      73:        module_foreach_run_enabled(&input_subsys);
1.1       misho      74: }
                     75: 
1.1.1.2 ! misho      76: int input_set(const char *name)
1.1       misho      77: {
1.1.1.2 ! misho      78:        return module_set(&input_subsys, name);
1.1       misho      79: }
                     80: 
1.1.1.2 ! misho      81: static struct bmon_subsys input_subsys = {
        !            82:        .s_name                 = "input",
        !            83:        .s_activate_default     = &activate_default,
        !            84:        .s_mod_list             = LIST_SELF(input_subsys.s_mod_list),
        !            85: };
1.1       misho      86: 
1.1.1.2 ! misho      87: static void __init __input_init(void)
1.1       misho      88: {
1.1.1.2 ! misho      89:        module_register_subsys(&input_subsys);
1.1       misho      90: }