Add my logging library in existing form. Abbreviate copyright notices in the

sources but put the full notices & license terms in COPYING.

1 files changed, 131 insertions, 0 deletions

diff --git a/src/hlog.h b/src/hlog.h
new file mode 100644
index 0000000..fcf6e80
--- /dev/null
+++ b/src/hlog.h
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2004, 2005, 2006, 2007 David Young.  All rights reserved.
+ *
+ * See COPYING at the top of the HDF5 distribution for license terms.
+ */
+/*
+ * Copyright (c) 2004 Urbana-Champaign Independent Media Center.
+ * All rights reserved.
+ *
+ * See COPYING at the top of the HDF5 distribution for license terms.
+ */
+#ifndef	_LOGLIB_H
+#define	_LOGLIB_H
+
+#include <stdarg.h>
+#include <syslog.h>
+#include <sys/cdefs.h>
+#include <sys/queue.h>
+
+#include "misc/misc.h"
+
+enum loglib_mode {LOGLIB_M_SYSLOG = 0, LOGLIB_M_STDERR};
+
+enum loglib_sink_state	{
+	  LOGLIB_SINK_S_PASS = 0
+	, LOGLIB_SINK_S_OFF = 1
+	, LOGLIB_SINK_S_ON = 2
+};
+
+struct loglib_sink {
+	const char			*ls_name;
+	char				*ls_name0;
+	struct loglib_sink		*ls_parent;
+	enum loglib_sink_state		ls_state;	
+	int				ls_priority;
+	int				ls_rendezvous;
+	TAILQ_ENTRY(loglib_sink)	ls_next;
+};
+
+#define	LOGLIB_CONSTRUCTOR(__sym)					\
+void loglib_constructor_##__sym(void) __attribute__((constructor));	\
+void									\
+loglib_constructor_##__sym(void)					\
+{									\
+	loglib_sink_register(&__sym);					\
+}									\
+void loglib_constructor_##__sym(void) __attribute__((constructor))
+
+#define	LOGLIB_SINK_FOREACH(__le, __le0)				\
+	for ((__le) = (__le0); (__le) != NULL; (__le) = (__le)->ls_parent)
+
+#define	LOGLIB_SINK_DECL1(__sym)	extern struct loglib_sink __sym
+
+#define	LOGLIB_SINK_DECL(__name)	LOGLIB_SINK_DECL1(log_##__name)
+
+#define	LOGLIB_SINK_DEFN(__sym, __name, __parent, __state, __priority)	\
+	struct loglib_sink __sym = {					\
+		  .ls_name = __name					\
+		, .ls_parent = (__parent)				\
+		, .ls_state = (__state)					\
+		, .ls_priority = (__priority)				\
+	};								\
+	LOGLIB_CONSTRUCTOR(__sym)
+
+#define	LOGLIB_SINK_MEDIUM_DEFN(__name, __parent, __priority)		\
+    LOGLIB_SINK_DEFN(log_##__name, #__name, &log_##__parent,		\
+        LOGLIB_SINK_S_PASS, (__priority))
+
+#define	LOGLIB_SINK_SHORT_DEFN(__name, __parent)			\
+    LOGLIB_SINK_MEDIUM_DEFN(__name, __parent, LOG_INFO)
+
+#define	LOGLIB_SINK_TOP_DEFN(__name)					\
+    LOGLIB_SINK_DEFN(log_##__name, #__name, NULL, LOGLIB_SINK_S_ON,	\
+        LOG_INFO)
+
+#define	LOGLIB_F_ALL	(0xffffffff)
+
+LOGLIB_SINK_DECL(all);
+LOGLIB_SINK_DECL(arithmetic);
+LOGLIB_SINK_DECL(mem);
+LOGLIB_SINK_DECL(sys);
+LOGLIB_SINK_DECL(notice);
+LOGLIB_SINK_DECL(err);
+LOGLIB_SINK_DECL(warn);
+
+#define	LOGLIB_LOG	loglib_log
+
+#define	LOGLIB_LAZY(__ls0, ...)						\
+	do {								\
+		struct loglib_sink *__ls;				\
+		if ((__ls = loglib_sink_find_active((__ls0))) != NULL)	\
+			loglib_always_log((__ls), __VA_ARGS__);		\
+	} while (/*CONSTCOND*/0)
+
+struct loglib_sink *loglib_sink_find_active(struct loglib_sink *);
+extern void loglib_sink_register(struct loglib_sink *);
+extern struct loglib_sink *loglib_sink_lookup(const char *);
+extern int loglib_set_state(const char *, enum loglib_sink_state, int);
+extern int loglib_start(enum loglib_mode, int);
+
+void loglib_vlog(int, const char *, va_list)
+    __attribute__((__format__(__printf__,2,0)));
+
+void loglib_vwarn(const char *, va_list)
+    __attribute__((__format__(__printf__,1,0)));
+void loglib_vwarnx(const char *, va_list)
+    __attribute__((__format__(__printf__,1,0)));
+void loglib_verr(int, const char *, va_list)
+    __attribute__((__format__(__printf__,2,0))) __attribute__((__noreturn__));
+void loglib_verrx(int, const char *, va_list)
+    __attribute__((__format__(__printf__,2,0))) __attribute__((__noreturn__));
+
+void loglib_warnx(const char *, ...)
+    __attribute__((__format__(__printf__,1,2)));
+void loglib_warn(const char *, ...)
+    __attribute__((__format__(__printf__,1,2)));
+
+void loglib_err(int, const char *, ...)
+    __attribute__((__format__(__printf__,2,3))) __attribute__((__noreturn__));
+void loglib_errx(int, const char *, ...)
+    __attribute__((__format__(__printf__,2,3))) __attribute__((__noreturn__));
+
+void loglib_always_log(struct loglib_sink *, const char *, ...)
+    __attribute__((__format__(__printf__,2,3)));
+
+void loglib_log(struct loglib_sink *, const char *, ...)
+    __attribute__((__format__(__printf__,2,3)));
+
+int log_printer(void *, const char *, ...);
+
+#endif	/* _LOGLIB_H */