Fix returning -1 to an unsigned int return value in getLastRead/Write…

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techrockedge · Oct 29, 2024 · fd9d014 · fd9d014
1 parent 9f536cc
commit fd9d014
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/src/zm_monitor.cpp b/src/zm_monitor.cpp
@@ -1378,11 +1378,11 @@ SystemTimePoint Monitor::GetTimestamp(int index) const {
   return {};
 }
 
-unsigned int Monitor::GetLastReadIndex() const {
+int Monitor::GetLastReadIndex() const {
   return ( shared_data->last_read_index != image_buffer_count ? shared_data->last_read_index : -1 );
 }
 
-unsigned int Monitor::GetLastWriteIndex() const {
+int Monitor::GetLastWriteIndex() const {
   return ( shared_data->last_write_index != image_buffer_count ? shared_data->last_write_index : -1 );
 }
 

diff --git a/src/zm_monitor.h b/src/zm_monitor.h
@@ -840,8 +840,8 @@ class Monitor : public std::enable_shared_from_this<Monitor> {
   unsigned int GetCaptureMaxFPS() const { return capture_max_fps; }
   Microseconds GetCaptureDelay() const { return capture_delay; }
   Microseconds GetAlarmCaptureDelay() const { return alarm_capture_delay; }
-  unsigned int GetLastReadIndex() const;
-  unsigned int GetLastWriteIndex() const;
+  int GetLastReadIndex() const;
+  int GetLastWriteIndex() const;
   uint64_t GetLastEventId() const;
   double GetFPS() const;
   void UpdateFPS();