drumstick  2.9.0
C++ MIDI libraries using Qt objects, idioms, and style.
errorcheck.h
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1 /*
2  MIDI Sequencer C++ library
3  Copyright (C) 2006-2023, Pedro Lopez-Cabanillas <plcl@users.sf.net>
4 
5  This library is free software; you can redistribute it and/or modify
6  it under the terms of the GNU General Public License as published by
7  the Free Software Foundation; either version 3 of the License, or
8  (at your option) any later version.
9 
10  This library 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 
15  You should have received a copy of the GNU General Public License
16  along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 
19 #ifndef ERRORCHECK_H
20 #define ERRORCHECK_H
21 
22 extern "C" {
23 #include <alsa/asoundlib.h>
24 }
25 
26 #include <QString>
27 #include <QDebug>
29 
35 namespace drumstick { namespace ALSA {
36 
50 inline int checkErrorAndThrow(int rc, const char *where)
51 {
52  if (rc < 0) {
53  qDebug() << "Error code:" << rc << "(" << snd_strerror(rc) << ")";
54  qDebug() << "Location:" << where;
55  throw SequencerError(QString(where), rc);
56  }
57  return rc;
58 }
59 
67 inline int checkWarning(int rc, const char *where)
68 {
69  if (rc < 0) {
70  qWarning() << "Exception code:" << rc << "(" << snd_strerror(rc) << ")";
71  qWarning() << "Location:" << where;
72  }
73  return rc;
74 }
75 
80 #define DRUMSTICK_ALSA_CHECK_ERROR(x) (checkErrorAndThrow((x),__PRETTY_FUNCTION__))
81 
86 #define DRUMSTICK_ALSA_CHECK_WARNING(x) (checkWarning((x),__PRETTY_FUNCTION__))
87 
90 }} // namespace drumstick::ALSA
91 
92 #endif // ERRORCHECK_H
Exception class for ALSA Sequencer errors.
int checkWarning(int rc, const char *where)
Check the error code for warning errors.
Definition: errorcheck.h:67
int checkErrorAndThrow(int rc, const char *where)
Checks the error code for severe errors.
Definition: errorcheck.h:50
Drumstick common.
Definition: alsaclient.cpp:68
SequencerError Exception class.