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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 "sigrokdecode.h" | |
22 | #include "sigrokdecode-internal.h" | |
23 | #include <stdarg.h> | |
24 | #include <stdio.h> | |
25 | ||
26 | static int srd_loglevel = SRD_LOG_WARN; /* Show errors+warnings per default. */ | |
27 | ||
28 | /** | |
29 | * Set the libsigrokdecode loglevel. | |
30 | * | |
31 | * This influences the amount of log messages (debug messages, error messages, | |
32 | * and so on) libsigrokdecode will output. Using SRD_LOG_NONE disables all | |
33 | * messages. | |
34 | * | |
35 | * @param loglevel The loglevel to set (SRD_LOG_NONE, SRD_LOG_ERR, | |
36 | * SRD_LOG_WARN, SRD_LOG_INFO, SRD_LOG_DBG, or SRD_LOG_SPEW). | |
37 | * @return SRD_OK upon success, SRD_ERR_ARG upon invalid loglevel. | |
38 | */ | |
39 | int srd_set_loglevel(int loglevel) | |
40 | { | |
41 | if (loglevel < SRD_LOG_NONE || loglevel > SRD_LOG_SPEW) { | |
42 | srd_err("log: %s: invalid loglevel %d", __func__, loglevel); | |
43 | return SRD_ERR_ARG; | |
44 | } | |
45 | ||
46 | srd_loglevel = loglevel; | |
47 | ||
48 | srd_dbg("log: %s: libsigrokdecode loglevel set to %d", | |
49 | __func__, loglevel); | |
50 | ||
51 | return SRD_OK; | |
52 | } | |
53 | ||
54 | /** | |
55 | * Get the libsigrokdecode loglevel. | |
56 | * | |
57 | * @return The currently configured libsigrokdecode loglevel. | |
58 | */ | |
59 | int srd_get_loglevel(void) | |
60 | { | |
61 | return srd_loglevel; | |
62 | } | |
63 | ||
64 | static int srd_logv(int loglevel, const char *format, va_list args) | |
65 | { | |
66 | int ret; | |
67 | ||
68 | /* Only output messages of at least the selected loglevel(s). */ | |
69 | if (loglevel > srd_loglevel) | |
70 | return SRD_OK; /* TODO? */ | |
71 | ||
72 | ret = vfprintf(stderr, format, args); | |
73 | fprintf(stderr, "\n"); | |
74 | ||
75 | return ret; | |
76 | } | |
77 | ||
78 | int srd_log(int loglevel, const char *format, ...) | |
79 | { | |
80 | int ret; | |
81 | va_list args; | |
82 | ||
83 | va_start(args, format); | |
84 | ret = srd_logv(loglevel, format, args); | |
85 | va_end(args); | |
86 | ||
87 | return ret; | |
88 | } | |
89 | ||
90 | int srd_spew(const char *format, ...) | |
91 | { | |
92 | int ret; | |
93 | va_list args; | |
94 | ||
95 | va_start(args, format); | |
96 | ret = srd_logv(SRD_LOG_SPEW, format, args); | |
97 | va_end(args); | |
98 | ||
99 | return ret; | |
100 | } | |
101 | ||
102 | int srd_dbg(const char *format, ...) | |
103 | { | |
104 | int ret; | |
105 | va_list args; | |
106 | ||
107 | va_start(args, format); | |
108 | ret = srd_logv(SRD_LOG_DBG, format, args); | |
109 | va_end(args); | |
110 | ||
111 | return ret; | |
112 | } | |
113 | ||
114 | int srd_info(const char *format, ...) | |
115 | { | |
116 | int ret; | |
117 | va_list args; | |
118 | ||
119 | va_start(args, format); | |
120 | ret = srd_logv(SRD_LOG_INFO, format, args); | |
121 | va_end(args); | |
122 | ||
123 | return ret; | |
124 | } | |
125 | ||
126 | int srd_warn(const char *format, ...) | |
127 | { | |
128 | int ret; | |
129 | va_list args; | |
130 | ||
131 | va_start(args, format); | |
132 | ret = srd_logv(SRD_LOG_WARN, format, args); | |
133 | va_end(args); | |
134 | ||
135 | return ret; | |
136 | } | |
137 | ||
138 | int srd_err(const char *format, ...) | |
139 | { | |
140 | int ret; | |
141 | va_list args; | |
142 | ||
143 | va_start(args, format); | |
144 | ret = srd_logv(SRD_LOG_ERR, format, args); | |
145 | va_end(args); | |
146 | ||
147 | return ret; | |
148 | } |