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.

4 files changed, 28 insertions, 14 deletions

diff --git a/unsupported/UnsupportedProcess.c b/unsupported/UnsupportedProcess.c
index 2aca0488..4d8cb080 100644
--- a/unsupported/UnsupportedProcess.c
+++ b/unsupported/UnsupportedProcess.c
@@ -44,10 +44,10 @@ const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
    [TGID] = { .name = "TGID", .title = "TGID", .description = "Thread group ID (i.e. process ID)", .flags = 0, .pidColumn = true, },
 };
 
-Process* UnsupportedProcess_new(const Settings* settings) {
+Process* UnsupportedProcess_new(const Machine* host) {
    Process* this = xCalloc(1, sizeof(UnsupportedProcess));
    Object_setClass(this, Class(UnsupportedProcess));
-   Process_init(this, settings);
+   Process_init(this, host);
    return this;
 }
 
@@ -60,7 +60,7 @@ void Process_delete(Object* cast) {
 
 static void UnsupportedProcess_writeField(const Process* this, RichString* str, ProcessField field) {
    const UnsupportedProcess* up = (const UnsupportedProcess*) this;
-   bool coloring = this->settings->highlightMegabytes;
+   bool coloring = this->host->settings->highlightMegabytes;
    char buffer[256]; buffer[255] = '\0';
    int attr = CRT_colors[DEFAULT_COLOR];
    size_t n = sizeof(buffer) - 1;
diff --git a/unsupported/UnsupportedProcess.h b/unsupported/UnsupportedProcess.h
index e30169c5..21956ddd 100644
--- a/unsupported/UnsupportedProcess.h
+++ b/unsupported/UnsupportedProcess.h
@@ -7,7 +7,7 @@ Released under the GNU GPLv2+, see the COPYING file
 in the source distribution for its full text.
 */
 
-#include "Settings.h"
+#include "Machine.h"
 
 
 typedef struct UnsupportedProcess_ {
@@ -19,7 +19,7 @@ typedef struct UnsupportedProcess_ {
 
 extern const ProcessFieldData Process_fields[LAST_PROCESSFIELD];
 
-Process* UnsupportedProcess_new(const Settings* settings);
+Process* UnsupportedProcess_new(const Machine* host);
 
 void Process_delete(Object* cast);
 
diff --git a/unsupported/UnsupportedProcessList.c b/unsupported/UnsupportedProcessList.c
index fc226f76..e5b7af6d 100644
--- a/unsupported/UnsupportedProcessList.c
+++ b/unsupported/UnsupportedProcessList.c
@@ -14,12 +14,12 @@ in the source distribution for its full text.
 #include "UnsupportedProcess.h"
 
 
-ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId) {
+ProcessList* ProcessList_new(Machine* host, Hashtable* pidMatchList) {
    ProcessList* this = xCalloc(1, sizeof(ProcessList));
-   ProcessList_init(this, Class(Process), usersTable, pidMatchList, userId);
+   ProcessList_init(this, Class(Process), host, pidMatchList);
 
-   this->existingCPUs = 1;
-   this->activeCPUs = 1;
+   host->existingCPUs = 1;
+   host->activeCPUs = 1;
 
    return this;
 }
@@ -91,10 +91,20 @@ void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) {
       ProcessList_add(super, proc);
 }
 
-bool ProcessList_isCPUonline(const ProcessList* super, unsigned int id) {
-   assert(id < super->existingCPUs);
+Machine* Machine_new(UsersTable* usersTable, uid_t userId) {
+   Machine* this = xCalloc(1, sizeof(Machine));
+   Machine_init(this, usersTable, userId);
+   return this;
+}
+
+void Machine_delete(Machine* host) {
+   free(host);
+}
+
+bool Machine_isCPUonline(const Machine* host, unsigned int id) {
+   assert(id < host->existingCPUs);
 
-   (void) super; (void) id;
+   (void) host; (void) id;
 
    return true;
 }
diff --git a/unsupported/UnsupportedProcessList.h b/unsupported/UnsupportedProcessList.h
index 9f4d23aa..cdb0b601 100644
--- a/unsupported/UnsupportedProcessList.h
+++ b/unsupported/UnsupportedProcessList.h
@@ -10,12 +10,16 @@ in the source distribution for its full text.
 #include "ProcessList.h"
 
 
-ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId);
+ProcessList* ProcessList_new(Machine* host, Hashtable* pidMatchList);
 
 void ProcessList_delete(ProcessList* this);
 
 void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate);
 
-bool ProcessList_isCPUonline(const ProcessList* super, unsigned int id);
+Machine* Machine_new(UsersTable* usersTable, uid_t userId);
+
+bool Machine_isCPUonline(const Machine* host, unsigned int id);
+
+void Machine_delete(Machine* host);
 
 #endif