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43c0a640 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 | ||
43c0a640 UH |
21 | #include "sigrokdecode.h" |
22 | #include "sigrokdecode-internal.h" | |
bc5f5a43 BV |
23 | #include <stdarg.h> |
24 | #include <stdio.h> | |
43c0a640 UH |
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). | |
a62186e4 | 37 | * @return SRD_OK upon success, SRD_ERR_ARG upon invalid loglevel. |
43c0a640 UH |
38 | */ |
39 | int srd_set_loglevel(int loglevel) | |
40 | { | |
41 | if (loglevel < SRD_LOG_NONE || loglevel > SRD_LOG_SPEW) { | |
d906d3f9 | 42 | srd_err("Invalid loglevel %d.", loglevel); |
a62186e4 | 43 | return SRD_ERR_ARG; |
43c0a640 UH |
44 | } |
45 | ||
46 | srd_loglevel = loglevel; | |
47 | ||
d906d3f9 | 48 | srd_dbg("srd: loglevel set to %d", loglevel); |
43c0a640 UH |
49 | |
50 | return SRD_OK; | |
51 | } | |
52 | ||
53 | /** | |
54 | * Get the libsigrokdecode loglevel. | |
55 | * | |
56 | * @return The currently configured libsigrokdecode loglevel. | |
57 | */ | |
58 | int srd_get_loglevel(void) | |
59 | { | |
60 | return srd_loglevel; | |
61 | } | |
62 | ||
63 | static int srd_logv(int loglevel, const char *format, va_list args) | |
64 | { | |
65 | int ret; | |
66 | ||
67 | /* Only output messages of at least the selected loglevel(s). */ | |
68 | if (loglevel > srd_loglevel) | |
69 | return SRD_OK; /* TODO? */ | |
70 | ||
71 | ret = vfprintf(stderr, format, args); | |
72 | fprintf(stderr, "\n"); | |
73 | ||
74 | return ret; | |
75 | } | |
76 | ||
77 | int srd_log(int loglevel, const char *format, ...) | |
78 | { | |
79 | int ret; | |
80 | va_list args; | |
81 | ||
82 | va_start(args, format); | |
83 | ret = srd_logv(loglevel, format, args); | |
84 | va_end(args); | |
85 | ||
86 | return ret; | |
87 | } | |
88 | ||
89 | int srd_spew(const char *format, ...) | |
90 | { | |
91 | int ret; | |
92 | va_list args; | |
93 | ||
94 | va_start(args, format); | |
95 | ret = srd_logv(SRD_LOG_SPEW, format, args); | |
96 | va_end(args); | |
97 | ||
98 | return ret; | |
99 | } | |
100 | ||
101 | int srd_dbg(const char *format, ...) | |
102 | { | |
103 | int ret; | |
104 | va_list args; | |
105 | ||
106 | va_start(args, format); | |
107 | ret = srd_logv(SRD_LOG_DBG, format, args); | |
108 | va_end(args); | |
109 | ||
110 | return ret; | |
111 | } | |
112 | ||
113 | int srd_info(const char *format, ...) | |
114 | { | |
115 | int ret; | |
116 | va_list args; | |
117 | ||
118 | va_start(args, format); | |
119 | ret = srd_logv(SRD_LOG_INFO, format, args); | |
120 | va_end(args); | |
121 | ||
122 | return ret; | |
123 | } | |
124 | ||
125 | int srd_warn(const char *format, ...) | |
126 | { | |
127 | int ret; | |
128 | va_list args; | |
129 | ||
130 | va_start(args, format); | |
131 | ret = srd_logv(SRD_LOG_WARN, format, args); | |
132 | va_end(args); | |
133 | ||
134 | return ret; | |
135 | } | |
136 | ||
137 | int srd_err(const char *format, ...) | |
138 | { | |
139 | int ret; | |
140 | va_list args; | |
141 | ||
142 | va_start(args, format); | |
143 | ret = srd_logv(SRD_LOG_ERR, format, args); | |
144 | va_end(args); | |
145 | ||
146 | return ret; | |
147 | } |