Improve handling of no data in Disk and Network IO Meters

1 files changed, 4 insertions, 2 deletions

diff --git a/darwin/Platform.h b/darwin/Platform.h
index d953b51c..bdfe226d 100644
--- a/darwin/Platform.h
+++ b/darwin/Platform.h
@@ -48,9 +48,11 @@ void Platform_setZfsCompressedArcValues(Meter* this);
 
 char* Platform_getProcessEnv(pid_t pid);
 
-void Platform_getDiskIO(unsigned long int *bytesRead, unsigned long int *bytesWrite, unsigned long int *msTimeSpend);
+bool Platform_getDiskIO(unsigned long int *bytesRead,
+                        unsigned long int *bytesWrite,
+                        unsigned long int *msTimeSpend);
 
-void Platform_getNetworkIO(unsigned long int *bytesReceived,
+bool Platform_getNetworkIO(unsigned long int *bytesReceived,
                            unsigned long int *packetsReceived,
                            unsigned long int *bytesTransmitted,
                            unsigned long int *packetsTransmitted);