Basic implementation of a recorder

1 files changed, 46 insertions, 0 deletions

diff --git a/p2pvr/ice/commonHelpers.cpp b/p2pvr/ice/commonHelpers.cpp
new file mode 100644
index 0000000..64a1c61
--- /dev/null
+++ b/p2pvr/ice/commonHelpers.cpp
@@ -0,0 +1,46 @@
+#include "commonHelpers.h"
+#include <misc.h>
+#include <boost/format.hpp>
+
+namespace Common {
+	std::string operator-(const Common::DateTime & a, const Common::DateTime & b)
+	{
+		struct tm tma {
+			0, a.Minute, a.Hour,
+				a.Day, a.Month - 1, a.Year - 1900,
+				0, 0, 0, 0, 0};
+		struct tm tmb {
+			0, b.Minute, b.Hour,
+				b.Day, b.Month - 1, b.Year - 1900,
+				0, 0, 0, 0, 0};
+		auto secs = mktime(&tma) - mktime(&tmb);
+		return stringbf("%02d:%02d:%02d", secs / 3600, (secs / 60) % 60, secs % 60);
+	}
+
+	time_t operator-(const Common::DateTime & cdt, const std::string & interval)
+	{
+		struct tm dt {
+			0, cdt.Minute, cdt.Hour,
+				cdt.Day, cdt.Month - 1, cdt.Year - 1900,
+				0, 0, 0, 0, 0};
+		unsigned short hours, minutes, seconds;
+		if (sscanf(interval.c_str(), "%hu:%hu:%hu", &hours, &minutes, &seconds) < 3) {
+			throw std::runtime_error("Couldn't parse interval");
+		}
+		return mktime(&dt) - (seconds + (60 * (minutes + (60 * hours))));
+	}
+
+	time_t operator+(const Common::DateTime & cdt, const std::string & interval)
+	{
+		struct tm dt {
+			0, cdt.Minute, cdt.Hour,
+				cdt.Day, cdt.Month - 1, cdt.Year - 1900,
+				0, 0, 0, 0, 0};
+		unsigned short hours, minutes, seconds;
+		if (sscanf(interval.c_str(), "%hu:%hu:%hu", &hours, &minutes, &seconds) < 3) {
+			throw std::runtime_error("Couldn't parse interval");
+		}
+		return mktime(&dt) + (seconds + (60 * (minutes + (60 * hours))));
+	}
+}
+