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-rw-r--r--utils.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/utils.h b/utils.h
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--- /dev/null
+++ b/utils.h
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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AVIRT - ALSA Virtual Soundcard
+ *
+ * Copyright (c) 2010-2018 Fiberdyne Systems Pty Ltd
+ *
+ * utils.h - Some useful macros/utils for AVIRT
+ */
+
+#ifndef __SOUND_AVIRT_UTILS_H
+#define __SOUND_AVIRT_UTILS_H
+
+#define CHK_ERR(errno) \
+ do { \
+ if ((errno) < 0) \
+ return (errno); \
+ } while (0)
+
+#define CHK_ERR_V(errno, fmt, args...) \
+ do { \
+ if ((errno) < 0) { \
+ DERROR(D_LOGNAME, (fmt), ##args) \
+ return (errno); \
+ } \
+ } while (0)
+
+#define CHK_NULL(x) \
+ do { \
+ if (!(x)) \
+ return -EFAULT; \
+ } while (0)
+
+#define CHK_NULL_V(x, fmt, args...) \
+ do { \
+ if (!(x)) { \
+ DERROR(D_LOGNAME, "[ERRNO: %d] " fmt, -EFAULT, \
+ ##args); \
+ return -EFAULT; \
+ } \
+ } while (0)
+
+#endif /* __SOUND_AVIRT_UTILS_H */