add debug, bits, and pool

2021-12-20 15:16:16 +01:00
parent 963354421d
commit f63692e10e
5 changed files with 654 additions and 0 deletions
--- a/c/debug.c
+++ b/c/debug.c
@@ -0,0 +1,111 @@
+/* debug.c - 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>
+ *
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <time.h>
+
+#ifndef DEBUG_DEBUG
+#define DEBUG_DEBUG
+#endif
+
+#include "debug.h"
+
+#define NANOSEC  1000000000                       /* nano sec in sec */
+#define MILLISEC 1000000                          /* milli sec in sec */
+
+static s64 timer_start;                           /* in nanosecond */
+static u32 debug_level=0;
+
+void debug_level_set(u32 level)
+{
+    debug_level = level;
+
+    log(1, "debug level set to %u\n", level);
+}
+
+void debug_init(u32 level)
+{
+    struct timespec timer;
+
+    debug_level_set(level);
+    if (!clock_gettime(CLOCK_MONOTONIC, &timer)) {
+        timer_start = timer.tv_sec * NANOSEC + timer.tv_nsec;
+    }
+    else {
+        timer_start = 0;
+    }
+    log(0, "timer started.\n");
+}
+
+inline static s64 timer_elapsed()
+{
+    struct timespec timer;
+
+    clock_gettime(CLOCK_MONOTONIC, &timer);
+    return (timer.tv_sec * NANOSEC + timer.tv_nsec) - timer_start;
+}
+
+
+/* void debug - log function
+ * @timestamp : boolean
+ * @indent    : indent level (2 spaces each)
+ * @src       : source file/func name (or NULL)
+ * @line      : line number
+ */
+void debug(u32 level, bool timestamp, u32 indent, const char *src,
+           u32 line, const char *fmt, ...)
+{
+    if (level > debug_level)
+        return;
+
+    va_list ap;
+
+    if (indent)
+        printf("%*s", 2*(indent-1), "");
+
+    if (timestamp) {
+        s64 diff = timer_elapsed();
+        printf("%ld.%03ld ", diff/NANOSEC, (diff/1000000)%1000);
+        printf("%010ld ", diff);
+    }
+
+    if (src) {
+        if (line)
+            printf("[%s:%u] ", src, line);
+        else
+            printf("[%s] ", src);
+    }
+    va_start(ap, fmt);
+    vprintf(fmt, ap);
+    va_end(ap);
+}
+
+#ifdef BIN_debug
+#include <unistd.h>
+
+int main()
+{
+    int foo=1;
+    debug_init(5);
+
+    log(0, "log0=%d\n", foo++);
+    log(1, "log1=%d\n", foo++);
+    log(2, "log2=%d\n", foo++);
+    log_i(2, "log_i 2=%d\n", foo++);
+    log_i(5, "log_i 5=%d\n", foo++);
+    log_i(6, "log_i 6=%d\n", foo++);
+    log_it(4, "log_it 4=%d\n", foo++);
+    log_f(1, "log_f 5=%d\n", foo++);
+}
+#endif