add debug, bits, and pool

c/debug.h

@@ -0,0 +1,83 @@
+/* move.h - debug/log management.
+ *
+ * Copyright (C) 2021 Bruno Raoult ("br")
+ * Licensed under the GNU General Public License v3.0 or later.
+ * Some rights reserved. See COPYING.
+ *
+ * You should have received a copy of the GNU General Public License along with this
+ * program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
+ *
+ */
+
+#ifndef DEBUG_H
+#define DEBUG_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "bits.h"
+
+#ifdef DEBUG_DEBUG
+void debug_init(u32 level);
+void debug_level_set(u32 level);
+void debug_devel_set(u32 level);
+void debug(u32 level, bool timestamp, u32 indent,
+           const char *src, u32 line, const char *, ...);
+#else  /* DEBUG_DEBUG */
+#define _unused __attribute__((__unused__))
+static inline void debug_init(_unused u32 level) {}
+static inline void debug_level_set(_unused u32 level) {}
+static inline void debug_devel_set(_unused u32 level) {}
+static inline void debug(_unused u32 level, _unused bool timestamp,
+                         _unused u32 indent, _unused const char *src,
+                         _unused u32 line, const char *, ...) {}
+#undef _unused
+#endif  /* DEBUG_DEBUG */
+
+/* format: only printf
+ */
+#define log(level, fmt, args...) \
+    debug((level), false, 0, NULL, 0, fmt, ##args)
+
+/* format : indent, no func name, no timestamp
+ * >>>>val=2
+ */
+#define log_i(level, fmt, args...) \
+    debug((level), false, (level), NULL, 0, fmt, ##args)
+
+/* format : func name, no indent, no timestamp
+ * [foo] val=2
+ */
+#define log_f(level, fmt, args...) \
+    debug((level), false, 0, __func__, 0, fmt, ##args)
+
+/* format : func name, no indent, no timestamp
+ * >>>> [foo:15] val=2
+ */
+#define log_if(level, fmt, args...) \
+    debug((level), false, (level), __func__, __LINE__, fmt, ##args)
+
+/* format : func name, indent, timestamp
+ * >>>>foo:15 val=2
+ */
+#define log_it(level, fmt, args...) \
+    debug((level), true, (level), __func__, __LINE__, fmt, ##args)
+
+/* format: file name, no indent, no timestamp
+ * foo:15 val=2
+ *
+ * #define log_f(level, fmt, args...)                            \
+ *   debug((level), false, 0, __FILE__, __LINE__, fmt, args)
+ */
+
+#else
+#define log(level, fmt, args...)
+#define log_i(...)
+#define log_f(...)
+#define log_if(...)
+#define log_it(...)
+#define log_f(...)
+
+#endif  /* DEBUG_H */