Make UptimeMeter cross-platform again.

Makefile.am

@@ -20,7 +20,7 @@ ClockMeter.c ColorsPanel.c ColumnsPanel.c CPUMeter.c CRT.c \
 DisplayOptionsPanel.c FunctionBar.c Hashtable.c Header.c htop.c ListItem.c \
 LoadAverageMeter.c MemoryMeter.c Meter.c MetersPanel.c Object.c Panel.c \
 BatteryMeter.c Process.c ProcessList.c RichString.c ScreenManager.c Settings.c \
-SignalsPanel.c String.c SwapMeter.c TasksMeter.c TraceScreen.c \
+SignalsPanel.c String.c SwapMeter.c TasksMeter.c UptimeMeter.c TraceScreen.c \
 UsersTable.c Vector.c AvailableColumnsPanel.c AffinityPanel.c \
 HostnameMeter.c OpenFilesScreen.c Affinity.c IncSet.c Action.c
 
@@ -30,17 +30,15 @@ CPUMeter.h CRT.h DisplayOptionsPanel.h FunctionBar.h \
 Hashtable.h Header.h htop.h ListItem.h LoadAverageMeter.h MemoryMeter.h \
 BatteryMeter.h Meter.h MetersPanel.h Object.h Panel.h ProcessList.h RichString.h \
 ScreenManager.h Settings.h SignalsPanel.h String.h SwapMeter.h TasksMeter.h \
-TraceScreen.h UsersTable.h Vector.h Process.h AffinityPanel.h \
+UptimeMeter.h TraceScreen.h UsersTable.h Vector.h Process.h AffinityPanel.h \
 HostnameMeter.h OpenFilesScreen.h Affinity.h IncSet.h Action.h
 
 if HTOP_LINUX
 myhtopplatsources = linux/Platform.c linux/IOPriorityPanel.c linux/IOPriority.c \
-linux/LinuxProcess.c linux/LinuxProcessList.c linux/LinuxCRT.c \
-linux/UptimeMeter.c
+linux/LinuxProcess.c linux/LinuxProcessList.c linux/LinuxCRT.c
 
 myhtopplatheaders = linux/Platform.h linux/IOPriorityPanel.h linux/IOPriority.h \
-linux/LinuxProcess.h linux/LinuxProcessList.h linux/LinuxCRT.h \
-linux/UptimeMeter.h
+linux/LinuxProcess.h linux/LinuxProcessList.h linux/LinuxCRT.h
 endif
 
 if HTOP_UNSUPPORTED

UptimeMeter.c

@@ -6,12 +6,9 @@ in the source distribution for its full text.
 */
 
 #include "UptimeMeter.h"
-
-#include "ProcessList.h"
+#include "Platform.h"
 #include "CRT.h"
 
-#include <math.h>
-
 /*{
 #include "Meter.h"
 }*/
@@ -21,13 +18,11 @@ int UptimeMeter_attributes[] = {
 };
 
 static void UptimeMeter_setValues(Meter* this, char* buffer, int len) {
-   double uptime = 0;
-   FILE* fd = fopen(PROCDIR "/uptime", "r");
-   if (fd) {
-      fscanf(fd, "%64lf", &uptime);
-      fclose(fd);
+   int totalseconds = Platform_getUptime();
+   if (totalseconds == -1) {
+      snprintf(buffer, len, "(unknown)");
+      return;
    }
-   int totalseconds = (int) ceil(uptime);
    int seconds = totalseconds % 60;
    int minutes = (totalseconds/60) % 60;
    int hours = (totalseconds/3600) % 24;

linux/Platform.c

@@ -20,6 +20,8 @@ in the source distribution for its full text.
 #include "ClockMeter.h"
 #include "HostnameMeter.h"
 
+#include <math.h>
+
 /*{
 #include "Action.h"
 }*/
@@ -67,3 +69,12 @@ MeterClass* Platform_meterTypes[] = {
    NULL
 };
 
+int Platform_getUptime() {
+   double uptime = 0;
+   FILE* fd = fopen(PROCDIR "/uptime", "r");
+   if (fd) {
+      fscanf(fd, "%64lf", &uptime);
+      fclose(fd);
+   }
+   int totalseconds = (int) floor(uptime);
+}

unsupported/Platform.c

@@ -14,6 +14,7 @@ in the source distribution for its full text.
 #include "BatteryMeter.h"
 #include "ClockMeter.h"
 #include "HostnameMeter.h"
+#include "UptimeMeter.h"
 
 /*{
 #include "Action.h"
@@ -33,6 +34,7 @@ MeterClass* Platform_meterTypes[] = {
    &TasksMeter_class,
    &BatteryMeter_class,
    &HostnameMeter_class,
+   &UptimeMeter_class,
    &AllCPUsMeter_class,
    &AllCPUs2Meter_class,
    &LeftCPUsMeter_class,
@@ -43,3 +45,6 @@ MeterClass* Platform_meterTypes[] = {
    NULL
 };
 
+int Platform_getUptime() {
+   return -1;
+}

unsupported/Platform.h

@@ -15,5 +15,6 @@ void Platform_setBindings(Htop_Action* keys);
 
 extern MeterClass* Platform_meterTypes[];
 
+int Platform_getUptime();
 
 #endif