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b08024a8 UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2011 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <stdarg.h> | |
22 | #include <stdio.h> | |
23 | #include <sigrok.h> | |
24 | #include <sigrok-internal.h> | |
25 | ||
1352eedd UH |
26 | static int sr_loglevel = SR_LOG_WARN; /* Show errors+warnings per default. */ |
27 | ||
28 | /** | |
29 | * Set the libsigrok loglevel. | |
30 | * | |
31 | * This influences the amount of log messages (debug messages, error messages, | |
32 | * and so on) libsigrok will output. Using SR_LOG_NONE disables all messages. | |
33 | * | |
34 | * @param loglevel The loglevel to set (SR_LOG_NONE, SR_LOG_ERR, SR_LOG_WARN, | |
35 | * SR_LOG_INFO, or SR_LOG_DBG). | |
36 | * @return SR_OK upon success, SR_ERR_ARG upon invalid loglevel. | |
37 | */ | |
38 | int sr_set_loglevel(int loglevel) | |
39 | { | |
40 | if (loglevel < SR_LOG_NONE || loglevel > SR_LOG_DBG) { | |
41 | sr_err("log: %s: invalid loglevel %d", __func__, loglevel); | |
42 | return SR_ERR_ARG; | |
43 | } | |
44 | ||
45 | sr_loglevel = loglevel; | |
46 | ||
47 | sr_dbg("log: %s: libsigrok loglevel set to %d", __func__, loglevel); | |
48 | ||
49 | return SR_OK; | |
50 | } | |
51 | ||
52 | /** | |
53 | * Get the libsigrok loglevel. | |
54 | * | |
55 | * @return The currently configured libsigrok loglevel. | |
56 | */ | |
57 | int sr_get_loglevel(void) | |
58 | { | |
59 | return sr_loglevel; | |
60 | } | |
61 | ||
b08024a8 UH |
62 | static int sr_logv(int loglevel, const char *format, va_list args) |
63 | { | |
64 | int ret; | |
65 | ||
1352eedd UH |
66 | /* Only output messages of at least the selected loglevel(s). */ |
67 | if (loglevel > sr_loglevel) | |
68 | return SR_OK; /* TODO? */ | |
b08024a8 UH |
69 | |
70 | ret = vfprintf(stderr, format, args); | |
71 | fprintf(stderr, "\n"); | |
72 | ||
73 | return ret; | |
74 | } | |
75 | ||
76 | int sr_log(int loglevel, const char *format, ...) | |
77 | { | |
78 | int ret; | |
79 | va_list args; | |
80 | ||
81 | va_start(args, format); | |
82 | ret = sr_logv(loglevel, format, args); | |
83 | va_end(args); | |
84 | ||
85 | return ret; | |
86 | } | |
87 | ||
88 | int sr_dbg(const char *format, ...) | |
89 | { | |
90 | int ret; | |
91 | va_list args; | |
92 | ||
93 | va_start(args, format); | |
94 | ret = sr_logv(SR_LOG_DBG, format, args); | |
95 | va_end(args); | |
96 | ||
97 | return ret; | |
98 | } | |
99 | ||
100 | int sr_info(const char *format, ...) | |
101 | { | |
102 | int ret; | |
103 | va_list args; | |
104 | ||
105 | va_start(args, format); | |
106 | ret = sr_logv(SR_LOG_INFO, format, args); | |
107 | va_end(args); | |
108 | ||
109 | return ret; | |
110 | } | |
111 | ||
112 | int sr_warn(const char *format, ...) | |
113 | { | |
114 | int ret; | |
115 | va_list args; | |
116 | ||
117 | va_start(args, format); | |
118 | ret = sr_logv(SR_LOG_WARN, format, args); | |
119 | va_end(args); | |
120 | ||
121 | return ret; | |
122 | } | |
123 | ||
124 | int sr_err(const char *format, ...) | |
125 | { | |
126 | int ret; | |
127 | va_list args; | |
128 | ||
129 | va_start(args, format); | |
130 | ret = sr_logv(SR_LOG_ERR, format, args); | |
131 | va_end(args); | |
132 | ||
133 | return ret; | |
134 | } |