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-rw-r--r--misc-utils/lsfd-counter.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/misc-utils/lsfd-counter.c b/misc-utils/lsfd-counter.c
new file mode 100644
index 0000000..55f0fde
--- /dev/null
+++ b/misc-utils/lsfd-counter.c
@@ -0,0 +1,56 @@
+/*
+ * lsfd-counter.c - counter implementation used in --summary option
+ *
+ * Copyright (C) 2021 Red Hat, Inc.
+ * Copyright (C) 2021 Masatake YAMATO <yamato@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+#include "lsfd-counter.h"
+
+#include "xalloc.h"
+
+struct lsfd_counter {
+ char *name;
+ size_t value;
+ struct lsfd_filter *filter;
+};
+
+struct lsfd_counter *lsfd_counter_new(const char *const name, struct lsfd_filter *filter)
+{
+ struct lsfd_counter *counter = xmalloc(sizeof(struct lsfd_counter));
+
+ counter->name = xstrdup(name);
+ counter->value = 0;
+ counter->filter = filter;
+
+ return counter;
+}
+
+void lsfd_counter_free(struct lsfd_counter *counter)
+{
+ lsfd_filter_free(counter->filter);
+ free(counter->name);
+ free(counter);
+}
+
+bool lsfd_counter_accumulate(struct lsfd_counter *counter, struct libscols_line *ln)
+{
+ if (lsfd_filter_apply(counter->filter, ln)) {
+ counter->value++;
+ return true;
+ }
+ return false;
+}
+
+const char *lsfd_counter_name(struct lsfd_counter *counter)
+{
+ return counter->name;
+}
+
+size_t lsfd_counter_value(struct lsfd_counter *counter)
+{
+ return counter->value;
+}