Hold only a const version of the ProcessList in Meters

Meter.c

@@ -31,7 +31,7 @@ const MeterClass Meter_class = {
    }
 };
 
-Meter* Meter_new(struct ProcessList_* pl, int param, const MeterClass* type) {
+Meter* Meter_new(const struct ProcessList_* pl, int param, const MeterClass* type) {
    Meter* this = xCalloc(1, sizeof(Meter));
    Object_setClass(this, type);
    this->h = 1;

Meter.h

@@ -74,7 +74,7 @@ struct Meter_ {
    int param;
    GraphData* drawData;
    int h;
-   ProcessList* pl;
+   const ProcessList* pl;
    char curItems;
    double* values;
    double total;
@@ -98,7 +98,7 @@ typedef enum {
 
 extern const MeterClass Meter_class;
 
-Meter* Meter_new(ProcessList* pl, int param, const MeterClass* type);
+Meter* Meter_new(const ProcessList* pl, int param, const MeterClass* type);
 
 int Meter_humanUnit(char* buffer, unsigned long int value, int size);
 

TasksMeter.c

@@ -24,7 +24,7 @@ static const int TasksMeter_attributes[] = {
 };
 
 static void TasksMeter_updateValues(Meter* this, char* buffer, int len) {
-   ProcessList* pl = this->pl;
+   const ProcessList* pl = this->pl;
    this->values[0] = pl->kernelThreads;
    this->values[1] = pl->userlandThreads;
    this->values[2] = pl->totalTasks - pl->kernelThreads - pl->userlandThreads;
@@ -32,7 +32,7 @@ static void TasksMeter_updateValues(Meter* this, char* buffer, int len) {
    if (pl->totalTasks > this->total) {
       this->total = pl->totalTasks;
    }
-   if (this->pl->settings->hideKernelThreads) {
+   if (pl->settings->hideKernelThreads) {
       this->values[0] = 0;
    }
    xSnprintf(buffer, len, "%d/%d", (int) this->values[3], (int) this->total);

darwin/Platform.c

@@ -176,8 +176,8 @@ ProcessPidColumn Process_pidColumns[] = {
 };
 
 static double Platform_setCPUAverageValues(Meter* mtr) {
-   DarwinProcessList *dpl = (DarwinProcessList *)mtr->pl;
-   int cpus = dpl->super.cpuCount;
+   const ProcessList *dpl = mtr->pl;
+   int cpus = dpl->cpuCount;
    double sumNice = 0.0;
    double sumNormal = 0.0;
    double sumKernel = 0.0;
@@ -200,9 +200,9 @@ double Platform_setCPUValues(Meter* mtr, int cpu) {
       return Platform_setCPUAverageValues(mtr);
    }
 
-   DarwinProcessList *dpl = (DarwinProcessList *)mtr->pl;
-   processor_cpu_load_info_t prev = &dpl->prev_load[cpu-1];
-   processor_cpu_load_info_t curr = &dpl->curr_load[cpu-1];
+   const DarwinProcessList *dpl = (const DarwinProcessList *)mtr->pl;
+   const processor_cpu_load_info_t prev = &dpl->prev_load[cpu-1];
+   const processor_cpu_load_info_t curr = &dpl->curr_load[cpu-1];
    double total = 0;
 
    /* Take the sums */
@@ -228,8 +228,8 @@ double Platform_setCPUValues(Meter* mtr, int cpu) {
 }
 
 void Platform_setMemoryValues(Meter* mtr) {
-   DarwinProcessList *dpl = (DarwinProcessList *)mtr->pl;
-   vm_statistics_t vm = &dpl->vm_stats;
+   const DarwinProcessList *dpl = (const DarwinProcessList *)mtr->pl;
+   const struct vm_statistics* vm = &dpl->vm_stats;
    double page_K = (double)vm_page_size / (double)1024;
 
    mtr->total = dpl->host_info.max_mem / 1024;
@@ -249,13 +249,13 @@ void Platform_setSwapValues(Meter* mtr) {
 }
 
 void Platform_setZfsArcValues(Meter* this) {
-   DarwinProcessList* dpl = (DarwinProcessList*) this->pl;
+   const DarwinProcessList* dpl = (const DarwinProcessList*) this->pl;
 
    ZfsArcMeter_readStats(this, &(dpl->zfs));
 }
 
 void Platform_setZfsCompressedArcValues(Meter* this) {
-   DarwinProcessList* dpl = (DarwinProcessList*) this->pl;
+   const DarwinProcessList* dpl = (const DarwinProcessList*) this->pl;
 
    ZfsCompressedArcMeter_readStats(this, &(dpl->zfs));
 }

dragonflybsd/Platform.c

@@ -149,9 +149,9 @@ int Platform_getMaxPid() {
 }
 
 double Platform_setCPUValues(Meter* this, int cpu) {
-   DragonFlyBSDProcessList* fpl = (DragonFlyBSDProcessList*) this->pl;
+   const DragonFlyBSDProcessList* fpl = (const DragonFlyBSDProcessList*) this->pl;
    int cpus = this->pl->cpuCount;
-   CPUData* cpuData;
+   const CPUData* cpuData;
 
    if (cpus == 1) {
      // single CPU box has everything in fpl->cpus[0]
@@ -186,7 +186,7 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 
 void Platform_setMemoryValues(Meter* this) {
    // TODO
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
 
    this->total = pl->totalMem;
    this->values[0] = pl->usedMem;
@@ -195,7 +195,7 @@ void Platform_setMemoryValues(Meter* this) {
 }
 
 void Platform_setSwapValues(Meter* this) {
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
    this->total = pl->totalSwap;
    this->values[0] = pl->usedSwap;
 }

freebsd/Platform.c

@@ -157,9 +157,9 @@ int Platform_getMaxPid() {
 }
 
 double Platform_setCPUValues(Meter* this, int cpu) {
-   FreeBSDProcessList* fpl = (FreeBSDProcessList*) this->pl;
+   const FreeBSDProcessList* fpl = (const FreeBSDProcessList*) this->pl;
    int cpus = this->pl->cpuCount;
-   CPUData* cpuData;
+   const CPUData* cpuData;
 
    if (cpus == 1) {
      // single CPU box has everything in fpl->cpus[0]
@@ -194,7 +194,7 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 
 void Platform_setMemoryValues(Meter* this) {
    // TODO
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
 
    this->total = pl->totalMem;
    this->values[0] = pl->usedMem;
@@ -203,19 +203,19 @@ void Platform_setMemoryValues(Meter* this) {
 }
 
 void Platform_setSwapValues(Meter* this) {
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
    this->total = pl->totalSwap;
    this->values[0] = pl->usedSwap;
 }
 
 void Platform_setZfsArcValues(Meter* this) {
-   FreeBSDProcessList* fpl = (FreeBSDProcessList*) this->pl;
+   const FreeBSDProcessList* fpl = (const FreeBSDProcessList*) this->pl;
 
    ZfsArcMeter_readStats(this, &(fpl->zfs));
 }
 
 void Platform_setZfsCompressedArcValues(Meter* this) {
-   FreeBSDProcessList* fpl = (FreeBSDProcessList*) this->pl;
+   const FreeBSDProcessList* fpl = (const FreeBSDProcessList*) this->pl;
 
    ZfsCompressedArcMeter_readStats(this, &(fpl->zfs));
 }

linux/Platform.c

@@ -189,8 +189,8 @@ int Platform_getMaxPid() {
 }
 
 double Platform_setCPUValues(Meter* this, int cpu) {
-   LinuxProcessList* pl = (LinuxProcessList*) this->pl;
-   CPUData* cpuData = &(pl->cpus[cpu]);
+   const LinuxProcessList* pl = (const LinuxProcessList*) this->pl;
+   const CPUData* cpuData = &(pl->cpus[cpu]);
    double total = (double) ( cpuData->totalPeriod == 0 ? 1 : cpuData->totalPeriod);
    double percent;
    double* v = this->values;
@@ -224,8 +224,8 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 }
 
 void Platform_setMemoryValues(Meter* this) {
-   ProcessList* pl = this->pl;
-   LinuxProcessList* lpl = (LinuxProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
+   const LinuxProcessList* lpl = (const LinuxProcessList*) pl;
 
    long int usedMem = pl->usedMem;
    long int buffersMem = pl->buffersMem;
@@ -243,19 +243,19 @@ void Platform_setMemoryValues(Meter* this) {
 }
 
 void Platform_setSwapValues(Meter* this) {
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
    this->total = pl->totalSwap;
    this->values[0] = pl->usedSwap;
 }
 
 void Platform_setZfsArcValues(Meter* this) {
-   LinuxProcessList* lpl = (LinuxProcessList*) this->pl;
+   const LinuxProcessList* lpl = (const LinuxProcessList*) this->pl;
 
    ZfsArcMeter_readStats(this, &(lpl->zfs));
 }
 
 void Platform_setZfsCompressedArcValues(Meter* this) {
-   LinuxProcessList* lpl = (LinuxProcessList*) this->pl;
+   const LinuxProcessList* lpl = (const LinuxProcessList*) this->pl;
 
    ZfsCompressedArcMeter_readStats(this, &(lpl->zfs));
 }

openbsd/Platform.c

@@ -189,7 +189,7 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 }
 
 void Platform_setMemoryValues(Meter* this) {
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
    long int usedMem = pl->usedMem;
    long int buffersMem = pl->buffersMem;
    long int cachedMem = pl->cachedMem;
@@ -207,7 +207,7 @@ void Platform_setMemoryValues(Meter* this) {
  * Taken almost directly from OpenBSD's top(1)
  */
 void Platform_setSwapValues(Meter* this) {
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
    struct swapent *swdev;
    unsigned long long int total, used;
    int nswap, rnswap, i;

solaris/Platform.c

@@ -167,9 +167,9 @@ int Platform_getMaxPid() {
 }
 
 double Platform_setCPUValues(Meter* this, int cpu) {
-   SolarisProcessList* spl = (SolarisProcessList*) this->pl;
+   const SolarisProcessList* spl = (const SolarisProcessList*) this->pl;
    int cpus = this->pl->cpuCount;
-   CPUData* cpuData = NULL;
+   const CPUData* cpuData = NULL;
 
    if (cpus == 1) {
      // single CPU box has everything in spl->cpus[0]
@@ -203,7 +203,7 @@ double Platform_setCPUValues(Meter* this, int cpu) {
 }
 
 void Platform_setMemoryValues(Meter* this) {
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
    this->total = pl->totalMem;
    this->values[0] = pl->usedMem;
    this->values[1] = pl->buffersMem;
@@ -211,19 +211,19 @@ void Platform_setMemoryValues(Meter* this) {
 }
 
 void Platform_setSwapValues(Meter* this) {
-   ProcessList* pl = (ProcessList*) this->pl;
+   const ProcessList* pl = this->pl;
    this->total = pl->totalSwap;
    this->values[0] = pl->usedSwap;
 }
 
 void Platform_setZfsArcValues(Meter* this) {
-   SolarisProcessList* spl = (SolarisProcessList*) this->pl;
+   const SolarisProcessList* spl = (const SolarisProcessList*) this->pl;
 
    ZfsArcMeter_readStats(this, &(spl->zfs));
 }
 
 void Platform_setZfsCompressedArcValues(Meter* this) {
-   SolarisProcessList* spl = (SolarisProcessList*) this->pl;
+   const SolarisProcessList* spl = (const SolarisProcessList*) this->pl;
 
    ZfsCompressedArcMeter_readStats(this, &(spl->zfs));
 }

zfs/ZfsArcMeter.c

@@ -18,7 +18,7 @@ static const int ZfsArcMeter_attributes[] = {
    ZFS_MFU, ZFS_MRU, ZFS_ANON, ZFS_HEADER, ZFS_OTHER
 };
 
-void ZfsArcMeter_readStats(Meter* this, ZfsArcStats* stats) {
+void ZfsArcMeter_readStats(Meter* this, const ZfsArcStats* stats) {
    this->total = stats->max;
    this->values[0] = stats->MFU;
    this->values[1] = stats->MRU;

zfs/ZfsArcMeter.h

@@ -11,7 +11,7 @@ in the source distribution for its full text.
 
 #include "Meter.h"
 
-void ZfsArcMeter_readStats(Meter* this, ZfsArcStats* stats);
+void ZfsArcMeter_readStats(Meter* this, const ZfsArcStats* stats);
 
 extern const MeterClass ZfsArcMeter_class;
 

zfs/ZfsCompressedArcMeter.c

@@ -21,7 +21,7 @@ static const int ZfsCompressedArcMeter_attributes[] = {
    ZFS_COMPRESSED
 };
 
-void ZfsCompressedArcMeter_readStats(Meter* this, ZfsArcStats* stats) {
+void ZfsCompressedArcMeter_readStats(Meter* this, const ZfsArcStats* stats) {
    if ( stats->isCompressed ) {
       this->total = stats->uncompressed;
       this->values[0] = stats->compressed;

zfs/ZfsCompressedArcMeter.h

@@ -11,7 +11,7 @@ in the source distribution for its full text.
 
 #include "Meter.h"
 
-void ZfsCompressedArcMeter_readStats(Meter* this, ZfsArcStats* stats);
+void ZfsCompressedArcMeter_readStats(Meter* this, const ZfsArcStats* stats);
 
 extern const MeterClass ZfsCompressedArcMeter_class;