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-rw-r--r--src/lib/unlink-old-files.h9
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diff --git a/src/lib/unlink-old-files.h b/src/lib/unlink-old-files.h
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+++ b/src/lib/unlink-old-files.h
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+#ifndef UNLINK_OLD_FILES_H
+#define UNLINK_OLD_FILES_H
+
+/* Unlink all files from directory beginning with given prefix and having
+ ctime older than min_time. Makes sure that the directory's atime is updated.
+ Returns -1 if there were some errors. */
+int unlink_old_files(const char *dir, const char *prefix, time_t min_time);
+
+#endif