X-Git-Url: http://git.vrable.net/?p=cumulus.git;a=blobdiff_plain;f=util.h;h=b55320e90128b432a3121c562a3723b271058baf;hp=c6c6f9e392cd888ffaf53c3868a2fdd7bfc8c183;hb=HEAD;hpb=64bff41cb3ccdd60e767a5bb9ed8525d2dda1966

diff --git a/util.h b/util.h
index c6c6f9e..b55320e 100644
--- a/util.h
+++ b/util.h
@@ -27,6 +27,9 @@
 #include <map>
 #include <string>
 
+std::string string_printf(const char *fmt, ...)
+    __attribute__((format(printf, 1, 2)));
+
 std::string uri_encode(const std::string &in);
 std::string uri_decode(const std::string &in);
 std::string encode_int(long long n, int base=10);
@@ -36,4 +39,25 @@ void cloexec(int fd);
 
 void fatal(std::string msg) __attribute__((noreturn));
 
+/* Date/time string formatting and parsing utility functions.  All data and
+ * methods are static, so this class should not be instantiated. */
+class TimeFormat {
+public:
+    // Abbreviated time format encoded in snapshot file names.
+    static const char FORMAT_FILENAME[];
+    // A timestamp, in UTC, written out in an ISO 8601 format (compatible with
+    // the SQLite datetime function).
+    static const char FORMAT_ISO8601[];
+    // Similar to the above, but including a timezone offset.
+    static const char FORMAT_LOCALTIME[];
+
+    static std::string format(time_t timestamp, const char *format, bool utc);
+
+    static std::string isoformat(time_t timestamp)
+        { return format(timestamp, FORMAT_ISO8601, true); }
+
+private:
+    TimeFormat() { }
+};
+
 #endif // _LBS_TARSTORE_H