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-rw-r--r--libsmartcols/src/init.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/libsmartcols/src/init.c b/libsmartcols/src/init.c
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+++ b/libsmartcols/src/init.c
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+/*
+ * 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)));
+}