Hold only a const version of Settings in ProcessList

ProcessList.c

@@ -67,7 +67,7 @@ void ProcessList_setPanel(ProcessList* this, Panel* panel) {
 
 void ProcessList_printHeader(ProcessList* this, RichString* header) {
    RichString_prune(header);
-   ProcessField* fields = this->settings->fields;
+   const ProcessField* fields = this->settings->fields;
    for (int i = 0; fields[i]; i++) {
       const char* field = Process_fields[fields[i]].title;
       if (!field) field = "- ";
@@ -142,20 +142,21 @@ static void ProcessList_buildTree(ProcessList* this, pid_t pid, int level, int i
    Vector_delete(children);
 }
 
+static long ProcessList_treeProcessCompare(const void* v1, const void* v2) {
+   const Process *p1 = (const Process*)v1;
+   const Process *p2 = (const Process*)v2;
+
+   return p1->pid - p2->pid;
+}
+
 void ProcessList_sort(ProcessList* this) {
    if (!this->settings->treeView) {
       Vector_insertionSort(this->processes);
    } else {
       // Save settings
       int direction = this->settings->direction;
-      int sortKey = this->settings->sortKey;
       // Sort by PID
-      this->settings->sortKey = PID;
-      this->settings->direction = 1;
-      Vector_quickSort(this->processes);
-      // Restore settings
-      this->settings->sortKey = sortKey;
-      this->settings->direction = direction;
+      Vector_quickSortCustomCompare(this->processes, ProcessList_treeProcessCompare);
       int vsize = Vector_size(this->processes);
       // Find all processes whose parent is not visible
       int size;
@@ -214,7 +215,7 @@ void ProcessList_sort(ProcessList* this) {
 
 ProcessField ProcessList_keyAt(ProcessList* this, int at) {
    int x = 0;
-   ProcessField* fields = this->settings->fields;
+   const ProcessField* fields = this->settings->fields;
    ProcessField field;
    for (int i = 0; (field = fields[i]); i++) {
       const char* title = Process_fields[field].title;

ProcessList.h

@@ -35,7 +35,7 @@ in the source distribution for its full text.
 #endif
 
 typedef struct ProcessList_ {
-   Settings* settings;
+   const Settings* settings;
 
    Vector* processes;
    Vector* processes2;

Vector.c

@@ -161,10 +161,10 @@ static void insertionSort(Object** array, int left, int right, Object_Compare co
    }
 }
 
-void Vector_quickSort(Vector* this) {
-   assert(this->type->compare);
+void Vector_quickSortCustomCompare(Vector* this, Object_Compare compare) {
+   assert(compare);
    assert(Vector_isConsistent(this));
-   quickSort(this->array, 0, this->items - 1, this->type->compare);
+   quickSort(this->array, 0, this->items - 1, compare);
    assert(Vector_isConsistent(this));
 }
 

Vector.h

@@ -31,7 +31,10 @@ void Vector_delete(Vector* this);
 
 void Vector_prune(Vector* this);
 
-void Vector_quickSort(Vector* this);
+void Vector_quickSortCustomCompare(Vector* this, Object_Compare compare);
+static inline void Vector_quickSort(Vector* this) {
+   Vector_quickSortCustomCompare(this, this->type->compare);
+}
 
 void Vector_insertionSort(Vector* this);
 

dragonflybsd/DragonFlyBSDProcessList.c

@@ -362,7 +362,7 @@ char* DragonFlyBSDProcessList_readJailName(DragonFlyBSDProcessList* dfpl, int ja
 
 void ProcessList_goThroughEntries(ProcessList* this, bool pauseProcessUpdate) {
    DragonFlyBSDProcessList* dfpl = (DragonFlyBSDProcessList*) this;
-   Settings* settings = this->settings;
+   const Settings* settings = this->settings;
    bool hideKernelThreads = settings->hideKernelThreads;
    bool hideUserlandThreads = settings->hideUserlandThreads;
 

freebsd/FreeBSDProcessList.c

@@ -382,7 +382,7 @@ IGNORE_WCASTQUAL_END
 
 void ProcessList_goThroughEntries(ProcessList* this, bool pauseProcessUpdate) {
    FreeBSDProcessList* fpl = (FreeBSDProcessList*) this;
-   Settings* settings = this->settings;
+   const Settings* settings = this->settings;
    bool hideKernelThreads = settings->hideKernelThreads;
    bool hideUserlandThreads = settings->hideUserlandThreads;
 

linux/LinuxProcessList.c

@@ -936,7 +936,7 @@ static bool LinuxProcessList_recurseProcTree(LinuxProcessList* this, const char*
    ProcessList* pl = (ProcessList*) this;
    DIR* dir;
    struct dirent* entry;
-   Settings* settings = pl->settings;
+   const Settings* settings = pl->settings;
 
    #ifdef HAVE_TASKSTATS
    unsigned long long now = tv.tv_sec*1000LL+tv.tv_usec/1000LL;

openbsd/OpenBSDProcessList.c

@@ -185,7 +185,7 @@ static double getpcpu(const struct kinfo_proc *kp) {
 }
 
 static inline void OpenBSDProcessList_scanProcs(OpenBSDProcessList* this) {
-   Settings* settings = this->super.settings;
+   const Settings* settings = this->super.settings;
    bool hideKernelThreads = settings->hideKernelThreads;
    bool hideUserlandThreads = settings->hideUserlandThreads;
    struct kinfo_proc* kproc;