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-rw-r--r--addons/ot/include/debug.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/addons/ot/include/debug.h b/addons/ot/include/debug.h
new file mode 100644
index 0000000..6274961
--- /dev/null
+++ b/addons/ot/include/debug.h
@@ -0,0 +1,104 @@
+/***
+ * Copyright 2020 HAProxy Technologies
+ *
+ * This file is part of the HAProxy OpenTracing filter.
+ *
+ * This program 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 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#ifndef _OPENTRACING_DEBUG_H_
+#define _OPENTRACING_DEBUG_H_
+
+#ifdef DEBUG_FULL
+# define DEBUG_OT
+#endif
+
+#ifdef DEBUG_OT
+# ifdef DEBUG_OT_SYSTIME
+# define FLT_OT_DBG_FMT(f) "[% 2d] %ld.%06ld [" FLT_OT_SCOPE "]: " f, tid, now.tv_sec, now.tv_usec
+# else
+# define FLT_OT_DBG_FMT(f) "[% 2d] %11.6f [" FLT_OT_SCOPE "]: " f, tid, FLT_OT_TV_UDIFF(&(flt_ot_debug.start), &now) / 1e6
+# endif
+# define FLT_OT_DBG_INDENT " "
+# define FLT_OT_DBG(l,f, ...) \
+ do { \
+ if (!(l) || (flt_ot_debug.level & (1 << (l)))) \
+ (void)fprintf(stderr, FLT_OT_DBG_FMT("%.*s" f "\n"), \
+ dbg_indent_level, FLT_OT_DBG_INDENT, ##__VA_ARGS__); \
+ } while (0)
+# define FLT_OT_FUNC(f, ...) do { FLT_OT_DBG(1, "%s(" f ") {", __func__, ##__VA_ARGS__); dbg_indent_level += 3; } while (0)
+# define FLT_OT_RETURN(a) do { dbg_indent_level -= 3; FLT_OT_DBG(1, "}"); return a; } while (0)
+# define FLT_OT_RETURN_EX(a,t,f) do { dbg_indent_level -= 3; { t _r = (a); FLT_OT_DBG(1, "} = " f, _r); return _r; } } while (0)
+# define FLT_OT_RETURN_INT(a) FLT_OT_RETURN_EX((a), int, "%d")
+# define FLT_OT_RETURN_PTR(a) FLT_OT_RETURN_EX((a), void *, "%p")
+# define FLT_OT_DBG_IFDEF(a,b) a
+# define FLT_OT_DBG_ARGS(a, ...) a, ##__VA_ARGS__
+# define FLT_OT_DBG_BUF(a,b) do { FLT_OT_DBG((a), "%p:{ %zu %p %zu %zu }", (b), (b)->size, (b)->area, (b)->data, (b)->head); } while (0)
+
+struct flt_ot_debug {
+#ifndef DEBUG_OT_SYSTIME
+ struct timeval start;
+#endif
+ uint8_t level;
+};
+
+
+extern THREAD_LOCAL int dbg_indent_level;
+extern struct flt_ot_debug flt_ot_debug;
+
+#else
+
+# define FLT_OT_DBG(...) while (0)
+# define FLT_OT_FUNC(...) while (0)
+# define FLT_OT_RETURN(a) return a
+# define FLT_OT_RETURN_EX(a,t,f) return a
+# define FLT_OT_RETURN_INT(a) return a
+# define FLT_OT_RETURN_PTR(a) return a
+# define FLT_OT_DBG_IFDEF(a,b) b
+# define FLT_OT_DBG_ARGS(...)
+# define FLT_OT_DBG_BUF(a,b) while (0)
+#endif /* DEBUG_OT */
+
+/*
+ * ON | NOLOGNORM |
+ * -----+-----------+-------------
+ * 0 | 0 | no log
+ * 0 | 1 | no log
+ * 1 | 0 | log all
+ * 1 | 1 | log errors
+ * -----+-----------+-------------
+ */
+#define FLT_OT_LOG(l,f, ...) \
+ do { \
+ if (!(conf->tracer->logging & FLT_OT_LOGGING_ON)) \
+ FLT_OT_DBG(3, "NOLOG[%d]: [" FLT_OT_SCOPE "]: [%s] " f, (l), conf->id, ##__VA_ARGS__); \
+ else if ((conf->tracer->logging & FLT_OT_LOGGING_NOLOGNORM) && ((l) > LOG_ERR)) \
+ FLT_OT_DBG(2, "NOLOG[%d]: [" FLT_OT_SCOPE "]: [%s] " f, (l), conf->id, ##__VA_ARGS__); \
+ else { \
+ send_log(&(conf->tracer->proxy_log), (l), "[" FLT_OT_SCOPE "]: [%s] " f "\n", conf->id, ##__VA_ARGS__); \
+ \
+ FLT_OT_DBG(1, "LOG[%d]: %s", (l), logline); \
+ } \
+ } while (0)
+
+#endif /* _OPENTRACING_DEBUG_H_ */
+
+/*
+ * Local variables:
+ * c-indent-level: 8
+ * c-basic-offset: 8
+ * End:
+ *
+ * vi: noexpandtab shiftwidth=8 tabstop=8
+ */