Improve handling of no data in Disk and Network IO Meters

2 files changed, 10 insertions, 4 deletions

diff --git a/darwin/Platform.c b/darwin/Platform.c
index 26bcbad2..1a8b8002 100644
--- a/darwin/Platform.c
+++ b/darwin/Platform.c
@@ -311,12 +311,15 @@ char* Platform_getProcessEnv(pid_t pid) {
    return env;
 }
 
-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) {
    // TODO
    *bytesRead = *bytesWrite = *msTimeSpend = 0;
+   return false;
 }
 
-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) {
@@ -325,4 +328,5 @@ void Platform_getNetworkIO(unsigned long int *bytesReceived,
    *packetsReceived = 0;
    *bytesTransmitted = 0;
    *packetsTransmitted = 0;
+   return false;
 }
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);