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Annotation of embedaddon/bmon/src/out_xml_event.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * out_xml_event.c     Event based XML output
                      3:  *
                      4:  * Copyright (c) 2001-2005 Thomas Graf <tgraf@suug.ch>
                      5:  *
                      6:  * Permission is hereby granted, free of charge, to any person obtaining a
                      7:  * copy of this software and associated documentation files (the "Software"),
                      8:  * to deal in the Software without restriction, including without limitation
                      9:  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
                     10:  * and/or sell copies of the Software, and to permit persons to whom the
                     11:  * Software is furnished to do so, subject to the following conditions:
                     12:  *
                     13:  * The above copyright notice and this permission notice shall be included
                     14:  * in all copies or substantial portions of the Software.
                     15:  *
                     16:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
                     17:  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
                     19:  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
                     20:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
                     21:  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
                     22:  * DEALINGS IN THE SOFTWARE.
                     23:  */
                     24: 
                     25: #include <bmon/bmon.h>
                     26: #include <bmon/node.h>
                     27: #include <bmon/output.h>
                     28: #include <bmon/graph.h>
                     29: #include <bmon/input.h>
                     30: #include <bmon/utils.h>
                     31: 
                     32: static const char *c_file;
                     33: static FILE *outfd;
                     34: 
                     35: static void write_attr(stat_attr_t *a, void *arg)
                     36: {
                     37:        fprintf(outfd,
                     38:            "<attr name=\"%s\" rx=\"%" PRIu64 "\" tx=\"%" PRIu64 "\" />\n",
                     39:            type2name(a->a_type), attr_get_rx(a), attr_get_tx(a));
                     40: }
                     41: 
                     42: static void write_per_item(item_t *it, void *arg)
                     43: {
                     44:        fprintf(outfd, "<item index=\"%d\" name=\"%s\" handle=\"%d\" " \
                     45:                       "level=\"%d\" ischild=\"%d\" parent=\"%d\" >\n",
                     46:                       it->i_index, it->i_name, it->i_handle, it->i_level,
                     47:                       !!(it->i_flags & ITEM_FLAG_IS_CHILD), it->i_parent);
                     48:        foreach_attr(it, &write_attr, NULL);
                     49:        fprintf(outfd, "</item>\n");
                     50: }
                     51: 
                     52: static void write_per_node(node_t *node, void *arg)
                     53: {
                     54:        fprintf(outfd, "<node index=\"%d\" name=\"%s\" from=\"%s\">\n",
                     55:                        node->n_index, node->n_name, node->n_from ? : "local");
                     56:        foreach_item(node, write_per_item, (void *) node);
                     57:        fprintf(outfd, "</node>\n");
                     58: }
                     59: 
                     60: void xml_event_draw(void)
                     61: {
                     62:        if (outfd == NULL) {
                     63:                if (c_file) {
                     64:                        umask(0133);
                     65:                        outfd = fopen(c_file, "w");
                     66:                        if (outfd == NULL)
                     67:                                quit("fopen(%s) failed: %s\n",
                     68:                                    c_file, strerror(errno));
                     69:                } else
                     70:                        outfd = stdout;
                     71:                
                     72:                fprintf(outfd,
                     73:                    "<?xml version=\"1.0\"?>\n" \
                     74:                    "<eventfile start=\"%llu\">\n",
                     75:                    (unsigned long long) time(0));
                     76:        }
                     77: 
                     78:        fprintf(outfd,
                     79:            "<update ts_sec=\"%" PRId64 "\" ts_usec=\"%" PRId64 "\">\n",
                     80:            rtiming.rt_last_read.tv_sec, rtiming.rt_last_read.tv_usec);
                     81:        foreach_node(write_per_node, NULL);
                     82:        fprintf(outfd, "</update>\n");
                     83: }
                     84: 
                     85: static void print_module_help(void)
                     86: {
                     87:        printf(
                     88:        "xml_event - Event Based XML Output\n" \
                     89:        "\n" \
                     90:        "  XML based event output, outputs counter as-is in a flow\n" \
                     91:        "  of XML objects.\n" \
                     92:        "  Author: Thomas Graf <tgraf@suug.ch>\n" \
                     93:        "\n" \
                     94:        "  Options:\n" \
                     95:        "    path=FILE        Output file (default: stdout)\n");
                     96: }
                     97: 
                     98: static void xml_event_set_opts(tv_t *attrs)
                     99: {
                    100:        while (attrs) {
                    101:                if (!strcasecmp(attrs->type, "path") && attrs->value)
                    102:                        c_file = attrs->value;
                    103:                else if (!strcasecmp(attrs->type, "help")) {
                    104:                        print_module_help();
                    105:                        exit(0);
                    106:                }
                    107:                
                    108:                attrs = attrs->next;
                    109:        }
                    110: }
                    111: 
                    112: static void xml_event_shutdown(void)
                    113: {
                    114:        if (outfd) {
                    115:                fprintf(outfd, "</eventfile>");
                    116:                fclose(outfd);
                    117:        }
                    118: }
                    119: 
                    120: static int xml_event_probe(void)
                    121: {
                    122:        return 1;
                    123: }
                    124: 
                    125: static struct output_module xml_event_ops = {
                    126:        .om_name = "xml_event",
                    127:        .om_draw = xml_event_draw,
                    128:        .om_set_opts = xml_event_set_opts,
                    129:        .om_probe = xml_event_probe,
                    130:        .om_shutdown = xml_event_shutdown,
                    131: };
                    132: 
                    133: static void __init xml_event_init(void)
                    134: {
                    135:        register_secondary_output_module(&xml_event_ops);
                    136: }