- fixes for pvqa_pcap project - lazy creation of codecs + compare timespec structures

src/engine/helper/HL_Time.cpp

@@ -15,3 +15,39 @@ double now_ms(void)
     return 1000.0 * res.tv_sec + (double) res.tv_nsec / 1e6;
 #endif
 }
+
+int compare_timespec(const timespec& lhs, const timespec& rhs)
+{
+    if (lhs.tv_sec < rhs.tv_sec)
+        return -1;
+    if (lhs.tv_sec > rhs.tv_sec)
+        return 1;
+
+    if (lhs.tv_nsec < rhs.tv_nsec)
+        return -1;
+    if (lhs.tv_nsec > rhs.tv_nsec)
+        return 1;
+
+    return 0;
+}
+
+bool operator < (const timespec& lhs, const timespec& rhs)
+{
+    return compare_timespec(lhs, rhs) < 0;
+}
+
+bool operator == (const timespec& lhs, const timespec& rhs)
+{
+    return compare_timespec(lhs, rhs) == 0;
+}
+
+bool operator > (const timespec& lhs, const timespec& rhs)
+{
+    return compare_timespec(lhs, rhs) > 0;
+}
+
+bool is_zero(const timespec& ts)
+{
+    return !ts.tv_sec && !ts.tv_nsec;
+}
+

src/engine/helper/HL_Time.h

@@ -1,6 +1,17 @@
 #ifndef __HELPER_TIME_H
 #define __HELPER_TIME_H
 
+#include <time.h>
+
+// Return current monotonic number of milliseconds starting from some point
 extern double now_ms();
 
+// Compare the timespec.
+// Returns -1 if lhs < rhs, 1 if lhs > rhs, 0 if equal
+extern int compare_timespec(const timespec& lhs, const timespec& rhs);
+extern bool operator < (const timespec& lhs, const timespec& rhs);
+extern bool operator == (const timespec& lhs, const timespec& rhs);
+extern bool operator > (const timespec& lhs, const timespec& rhs);
+extern bool is_zero(const timespec& ts);
+
 #endif