Initial import of streamer source code

1 files changed, 37 insertions, 0 deletions

diff --git a/util.h b/util.h
new file mode 100644
index 0000000..18e8c5e
--- /dev/null
+++ b/util.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 Mikhail Burakov. This file is part of streamer.
+ *
+ * streamer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * streamer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with streamer.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef STREAMER_UTIL_H_
+#define STREAMER_UTIL_H_
+
+#define STR_IMPL(x) #x
+#define STR(x) STR_IMPL(x)
+#define LOG(fmt, ...) \
+  fprintf(stderr, __FILE__ ":" STR(__LINE__) " " fmt "\n", ##__VA_ARGS__)
+#define AUTO(x) x __attribute__((__cleanup__(x##Destroy)))
+#define RELEASE(x) Release((void**)&x)
+#define LENGTH(x) (sizeof(x) / sizeof *(x))
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+
+static inline void* Release(void** x) {
+  void* result = *x;
+  *x = 0;
+  return result;
+}
+
+#endif  // STREAMER_UTIL_H_