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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2018 Soeren Apel <soeren@apelpie.net> | |
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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "logging.hpp" | |
21 | #include "globalsettings.hpp" | |
22 | ||
23 | #ifdef ENABLE_DECODE | |
24 | #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */ | |
25 | #endif | |
26 | ||
27 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
28 | ||
29 | #include <QApplication> | |
30 | ||
31 | namespace pv { | |
32 | ||
33 | Logging logging; | |
34 | ||
35 | const int Logging::MAX_BUFFER_SIZE = 50000; | |
36 | ||
37 | Logging::~Logging() | |
38 | { | |
39 | qInstallMessageHandler(0); | |
40 | sr_log_callback_set_default(); | |
41 | #ifdef ENABLE_DECODE | |
42 | srd_log_callback_set_default(); | |
43 | #endif | |
44 | ||
45 | GlobalSettings::remove_change_handler(this); | |
46 | } | |
47 | ||
48 | void Logging::init() | |
49 | { | |
50 | GlobalSettings settings; | |
51 | ||
52 | buffer_size_ = | |
53 | settings.value(GlobalSettings::Key_Log_BufferSize).toInt(); | |
54 | ||
55 | buffer_.reserve(buffer_size_); | |
56 | ||
57 | qInstallMessageHandler(log_pv); | |
58 | sr_log_callback_set(log_libsigrok, nullptr); | |
59 | #ifdef ENABLE_DECODE | |
60 | srd_log_callback_set(log_libsrd, nullptr); | |
61 | #endif | |
62 | ||
63 | GlobalSettings::add_change_handler(this); | |
64 | } | |
65 | ||
66 | int Logging::get_log_level() const | |
67 | { | |
68 | // We assume that libsigrok and libsrd always have the same log level | |
69 | return sr_log_loglevel_get(); | |
70 | } | |
71 | ||
72 | void Logging::set_log_level(int level) | |
73 | { | |
74 | sr_log_loglevel_set(level); | |
75 | srd_log_loglevel_set(level); | |
76 | } | |
77 | ||
78 | QString Logging::get_log() const | |
79 | { | |
80 | return buffer_.join("<br />\n"); | |
81 | } | |
82 | ||
83 | void Logging::log(const QString &text, int source) | |
84 | { | |
85 | if (buffer_.size() >= buffer_size_) | |
86 | buffer_.removeFirst(); | |
87 | ||
88 | QString s; | |
89 | ||
90 | if (text.contains("warning", Qt::CaseInsensitive)) { | |
91 | s = QString("<font color=\"darkorange\">%1</font>").arg(text); | |
92 | goto out; | |
93 | } | |
94 | ||
95 | if (text.contains("error", Qt::CaseInsensitive)) { | |
96 | s = QString("<font color=\"darkred\">%1</font>").arg(text); | |
97 | goto out; | |
98 | } | |
99 | ||
100 | switch (source) { | |
101 | case LogSource_pv: | |
102 | s = QString("pv: ") + text; // black is default color | |
103 | break; | |
104 | case LogSource_sr: | |
105 | s = QString("<font color=\"blue\">sr: %1</font>").arg(text); | |
106 | break; | |
107 | case LogSource_srd: | |
108 | s = QString("<font color=\"brown\">srd: %1</font>").arg(text); | |
109 | break; | |
110 | default: | |
111 | s = text; | |
112 | break; | |
113 | } | |
114 | ||
115 | out: | |
116 | buffer_.append(s); | |
117 | ||
118 | // If we're tearing down the program, sending out notifications to UI | |
119 | // elements that can no longer function properly is a bad idea | |
120 | if (!QApplication::closingDown()) | |
121 | logged_text(s); | |
122 | } | |
123 | ||
124 | void Logging::log_pv(QtMsgType type, const QMessageLogContext &context, const QString &msg) | |
125 | { | |
126 | (void)type; | |
127 | (void)context; | |
128 | ||
129 | logging.log(msg, LogSource_pv); | |
130 | } | |
131 | ||
132 | int Logging::log_libsigrok(void *cb_data, int loglevel, const char *format, va_list args) | |
133 | { | |
134 | (void)cb_data; | |
135 | (void)loglevel; | |
136 | ||
137 | char *text = g_strdup_vprintf(format, args); | |
138 | logging.log(QString::fromUtf8(text), LogSource_sr); | |
139 | g_free(text); | |
140 | ||
141 | return SR_OK; | |
142 | } | |
143 | ||
144 | #ifdef ENABLE_DECODE | |
145 | int Logging::log_libsrd(void *cb_data, int loglevel, const char *format, va_list args) | |
146 | { | |
147 | (void)cb_data; | |
148 | (void)loglevel; | |
149 | ||
150 | char *text = g_strdup_vprintf(format, args); | |
151 | logging.log(QString::fromUtf8(text), LogSource_srd); | |
152 | g_free(text); | |
153 | ||
154 | return SR_OK; | |
155 | } | |
156 | #endif | |
157 | ||
158 | void Logging::on_setting_changed(const QString &key, const QVariant &value) | |
159 | { | |
160 | if (key == GlobalSettings::Key_Log_BufferSize) { | |
161 | // Truncate buffer if needed | |
162 | const int delta = buffer_.size() - value.toInt(); | |
163 | if (delta > 0) | |
164 | buffer_.erase(buffer_.begin(), buffer_.begin() + delta); | |
165 | ||
166 | buffer_size_ = value.toInt(); | |
167 | buffer_.reserve(buffer_size_); | |
168 | } | |
169 | } | |
170 | ||
171 | } // namespace pv |