Introduce Machine class for host-specific info (split from ProcessList)

First stage in sanitizing the process list structure so that htop
can support other types of lists too (cgroups, filesystems, ...),
in the not-too-distant future.

This introduces struct Machine for system-wide information while
keeping process-list information in ProcessList (now much less).
Next step is to propogate this separation into each platform, to
match these core changes.

1 files changed, 13 insertions, 11 deletions

diff --git a/Header.c b/Header.c
index b2fc56cc..3fafc70a 100644
--- a/Header.c
+++ b/Header.c
@@ -25,12 +25,11 @@ in the source distribution for its full text.
 #include "XUtils.h"
 
 
-Header* Header_new(ProcessList* pl, Settings* settings, HeaderLayout hLayout) {
+Header* Header_new(Machine* host, HeaderLayout hLayout) {
    Header* this = xCalloc(1, sizeof(Header));
    this->columns = xMallocArray(HeaderLayout_getColumns(hLayout), sizeof(Vector*));
-   this->settings = settings;
-   this->pl = pl;
    this->headerLayout = hLayout;
+   this->host = host;
 
    Header_forEachColumn(this, i) {
       this->columns[i] = Vector_new(Class(Meter), true, DEFAULT_SIZE);
@@ -92,7 +91,8 @@ static void Header_addMeterByName(Header* this, const char* name, MeterModeId mo
             if ((end = strrchr(dynamic, ')')) == NULL)
                return;    // htoprc parse failure
             *end = '\0';
-            if (!DynamicMeter_search(this->settings->dynamicMeters, dynamic, &param))
+            const Settings* settings = this->host->settings;
+            if (!DynamicMeter_search(settings->dynamicMeters, dynamic, &param))
                return;    // name lookup failure
          } else {
             param = 0;
@@ -105,7 +105,7 @@ static void Header_addMeterByName(Header* this, const char* name, MeterModeId mo
 
    for (const MeterClass* const* type = Platform_meterTypes; *type; type++) {
       if (0 == strncmp(name, (*type)->name, nameLen) && (*type)->name[nameLen] == '\0') {
-         Meter* meter = Meter_new(this->pl, param, *type);
+         Meter* meter = Meter_new(this->host, param, *type);
          if (mode != 0) {
             Meter_setMode(meter, mode);
          }
@@ -116,10 +116,11 @@ static void Header_addMeterByName(Header* this, const char* name, MeterModeId mo
 }
 
 void Header_populateFromSettings(Header* this) {
-   Header_setLayout(this, this->settings->hLayout);
+   const Settings* settings = this->host->settings;
+   Header_setLayout(this, settings->hLayout);
 
    Header_forEachColumn(this, col) {
-      const MeterColumnSetting* colSettings = &this->settings->hColumns[col];
+      const MeterColumnSetting* colSettings = &settings->hColumns[col];
       Vector_prune(this->columns[col]);
       for (size_t i = 0; i < colSettings->len; i++) {
          Header_addMeterByName(this, colSettings->names[i], colSettings->modes[i], col);
@@ -130,7 +131,7 @@ void Header_populateFromSettings(Header* this) {
 }
 
 void Header_writeBackToSettings(const Header* this) {
-   Settings* settings = this->settings;
+   Settings* settings = this->host->settings;
    Settings_setHeaderLayout(settings, this->headerLayout);
 
    Header_forEachColumn(this, col) {
@@ -172,7 +173,7 @@ Meter* Header_addMeterByClass(Header* this, const MeterClass* type, unsigned int
 
    Vector* meters = this->columns[column];
 
-   Meter* meter = Meter_new(this->pl, param, type);
+   Meter* meter = Meter_new(this->host, param, type);
    Vector_add(meters, meter);
    return meter;
 }
@@ -274,7 +275,8 @@ static int calcColumnWidthCount(const Header* this, const Meter* curMeter, const
 }
 
 int Header_calculateHeight(Header* this) {
-   const int pad = this->settings->headerMargin ? 2 : 0;
+   const Settings* settings = this->host->settings;
+   const int pad = settings->headerMargin ? 2 : 0;
    int maxHeight = pad;
 
    Header_forEachColumn(this, col) {
@@ -295,7 +297,7 @@ int Header_calculateHeight(Header* this) {
       this->pad = pad;
    }
 
-   if (this->settings->screenTabs) {
+   if (settings->screenTabs) {
       maxHeight++;
    }