1 files changed, 62 insertions, 0 deletions
diff --git a/libsmartcols/src/init.c b/libsmartcols/src/init.c
new file mode 100644
index 0000000..dfd7510
--- /dev/null
+++ b/libsmartcols/src/init.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2014 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+/**
+ * SECTION: init
+ * @title: Library initialization
+ * @short_description: initialize debugging
+ *
+ * The library debug stuff.
+ */
+
+#include <stdarg.h>
+
+#include "smartcolsP.h"
+
+UL_DEBUG_DEFINE_MASK(libsmartcols);
+UL_DEBUG_DEFINE_MASKNAMES(libsmartcols) =
+{
+	{ "all", SCOLS_DEBUG_ALL,	"info about all subsystems" },
+	{ "buff", SCOLS_DEBUG_BUFF,	"output buffer utils" },
+	{ "cell", SCOLS_DEBUG_CELL,	"table cell utils" },
+	{ "col", SCOLS_DEBUG_COL,	"cols utils" },
+	{ "help", SCOLS_DEBUG_HELP,	"this help" },
+	{ "group", SCOLS_DEBUG_GROUP,	"lines grouping utils" },
+	{ "line", SCOLS_DEBUG_LINE,	"table line utils" },
+	{ "tab", SCOLS_DEBUG_TAB,	"table utils" },
+	{ NULL, 0, NULL }
+};
+
+/**
+ * scols_init_debug:
+ * @mask: debug mask (0xffff to enable full debugging)
+ *
+ * If the @mask is not specified, then this function reads
+ * the LIBSMARTCOLS_DEBUG environment variable to get the mask.
+ *
+ * Already initialized debugging stuff cannot be changed. Calling
+ * this function twice has no effect.
+ */
+void scols_init_debug(int mask)
+{
+	if (libsmartcols_debug_mask)
+		return;
+
+	__UL_INIT_DEBUG_FROM_ENV(libsmartcols, SCOLS_DEBUG_, mask, LIBSMARTCOLS_DEBUG);
+
+	if (libsmartcols_debug_mask != SCOLS_DEBUG_INIT
+	    && libsmartcols_debug_mask != (SCOLS_DEBUG_HELP|SCOLS_DEBUG_INIT)) {
+		const char *ver = NULL;
+
+		scols_get_library_version(&ver);
+
+		DBG(INIT, ul_debug("library debug mask: 0x%04x", libsmartcols_debug_mask));
+		DBG(INIT, ul_debug("library version: %s", ver));
+	}
+	ON_DBG(HELP, ul_debug_print_masks("LIBSMARTCOLS_DEBUG",
+				UL_DEBUG_MASKNAMES(libsmartcols)));
+}