Commit | Line | Data |
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460b9539 | 1 | /* |
2 | * This file is part of DisOrder | |
5aff007d | 3 | * Copyright (C) 2005, 2007, 2008 Richard Kettlewell |
460b9539 | 4 | * |
e7eb3a27 | 5 | * This program is free software: you can redistribute it and/or modify |
460b9539 | 6 | * it under the terms of the GNU General Public License as published by |
e7eb3a27 | 7 | * the Free Software Foundation, either version 3 of the License, or |
460b9539 | 8 | * (at your option) any later version. |
e7eb3a27 RK |
9 | * |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
460b9539 | 15 | * You should have received a copy of the GNU General Public License |
e7eb3a27 | 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
460b9539 | 17 | */ |
132a5a4a RK |
18 | /** @file lib/eventlog.c |
19 | * @brief Event logging | |
20 | */ | |
05b75f8d | 21 | #include "common.h" |
460b9539 | 22 | |
23 | #include <stdarg.h> | |
460b9539 | 24 | |
25 | #include "mem.h" | |
26 | #include "vector.h" | |
27 | #include "printf.h" | |
28 | #include "eventlog.h" | |
29 | #include "split.h" | |
30 | ||
598b07b7 | 31 | /** @brief Linked list of event logs */ |
460b9539 | 32 | static struct eventlog_output *outputs; |
33 | ||
34 | void eventlog_add(struct eventlog_output *lo) { | |
35 | lo->next = outputs; | |
36 | outputs = lo; | |
37 | } | |
38 | ||
39 | void eventlog_remove(struct eventlog_output *lo) { | |
40 | struct eventlog_output *p, **pp; | |
41 | ||
42 | for(pp = &outputs; (p = *pp) && p != lo; pp = &p->next) | |
43 | ; | |
44 | if(p == lo) | |
45 | *pp = lo->next; | |
46 | } | |
47 | ||
598b07b7 RK |
48 | /** @brief Write to the event log |
49 | * @param keyword Distinguishing keyword for event | |
50 | * @param raw Unformatted data | |
51 | * @param ap Extra data, terminated by (char *)0 | |
52 | */ | |
460b9539 | 53 | static void veventlog(const char *keyword, const char *raw, va_list ap) { |
f6033c46 | 54 | struct eventlog_output *p, *pnext; |
460b9539 | 55 | struct dynstr d; |
56 | const char *param; | |
57 | ||
58 | dynstr_init(&d); | |
59 | dynstr_append_string(&d, keyword); | |
60 | while((param = va_arg(ap, const char *))) { | |
61 | dynstr_append(&d, ' '); | |
62 | dynstr_append_string(&d, quoteutf8(param)); | |
63 | } | |
64 | if(raw) { | |
65 | dynstr_append(&d, ' '); | |
66 | dynstr_append_string(&d, raw); | |
67 | } | |
68 | dynstr_terminate(&d); | |
f6033c46 RK |
69 | for(p = outputs; p; p = pnext) { |
70 | /* We must be able to cope with eventlog_remove() being called from inside | |
71 | * the callback */ | |
cb9a695c | 72 | pnext = p->next; |
460b9539 | 73 | p->fn(d.vec, p->user); |
f6033c46 | 74 | } |
460b9539 | 75 | } |
76 | ||
77 | void eventlog_raw(const char *keyword, const char *raw, ...) { | |
78 | va_list ap; | |
79 | ||
80 | va_start(ap, raw); | |
81 | veventlog(keyword, raw, ap); | |
82 | va_end(ap); | |
83 | } | |
84 | ||
85 | void eventlog(const char *keyword, ...) { | |
86 | va_list ap; | |
87 | ||
88 | va_start(ap, keyword); | |
89 | veventlog(keyword, 0, ap); | |
90 | va_end(ap); | |
91 | } | |
92 | ||
93 | /* | |
94 | Local Variables: | |
95 | c-basic-offset:2 | |
96 | comment-column:40 | |
97 | fill-column:79 | |
98 | End: | |
99 | */ |