ProcessList.c - htop - Rivoreo Source Code Repositories

 /*
 htop - ProcessList.c
 (C) 2004,2005 Hisham H. Muhammad
 Released under the GNU GPL, see the COPYING file
 in the source distribution for its full text.
 */

 #include "ProcessList.h"
 #include "Platform.h"

 #include "CRT.h"
 #include "String.h"

 #include <stdlib.h>
 #include <string.h>

 /*{
 #include "Vector.h"
 #include "Hashtable.h"
 #include "UsersTable.h"
 #include "Panel.h"
 #include "Process.h"
 #include "Settings.h"

 #ifndef MAX_NAME
 #define MAX_NAME 128
 #endif

 #ifndef MAX_READ
 #define MAX_READ 2048
 #endif

 typedef struct ProcessList_ {
    Settings* settings;

    Vector* processes;
    Vector* processes2;
    Hashtable* processTable;
    UsersTable* usersTable;

    Panel* panel;
    int following;
    uid_t userId;
    const char* incFilter;
    Hashtable* pidWhiteList;

    #ifdef HAVE_LIBHWLOC
    hwloc_topology_t topology;
    bool topologyOk;
    #endif

    int totalTasks;
    int runningTasks;
    int userlandThreads;
    int kernelThreads;

    unsigned long long int totalMem;
    unsigned long long int usedMem;
    unsigned long long int freeMem;
    unsigned long long int sharedMem;
    unsigned long long int buffersMem;
    unsigned long long int cachedMem;
    unsigned long long int totalSwap;
    unsigned long long int usedSwap;
    unsigned long long int freeSwap;

    int cpuCount;

 } ProcessList;

 ProcessList* ProcessList_new(UsersTable* ut, Hashtable* pidWhiteList, uid_t userId);
 void ProcessList_delete(ProcessList* pl);
 void ProcessList_goThroughEntries(ProcessList* pl);

 }*/

 ProcessList* ProcessList_init(ProcessList* this, UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
    this->processes = Vector_new(Class(Process), true, DEFAULT_SIZE);
    this->processTable = Hashtable_new(140, false);
    this->usersTable = usersTable;
    this->pidWhiteList = pidWhiteList;
    this->userId = userId;

    // tree-view auxiliary buffers
    this->processes2 = Vector_new(Class(Process), true, DEFAULT_SIZE);

    // set later by platform-specific code
    this->cpuCount = 0;

 #ifdef HAVE_LIBHWLOC
    this->topologyOk = false;
    int topoErr = hwloc_topology_init(&this->topology);
    if (topoErr == 0) {
       topoErr = hwloc_topology_load(this->topology);
    }
    if (topoErr == 0) {
       this->topologyOk = true;
    }
 #endif

    this->following = -1;

    return this;
 }

 void ProcessList_done(ProcessList* this) {
    Hashtable_delete(this->processTable);
    Vector_delete(this->processes);
    Vector_delete(this->processes2);
 }

 void ProcessList_setPanel(ProcessList* this, Panel* panel) {
    this->panel = panel;
 }

 void ProcessList_printHeader(ProcessList* this, RichString* header) {
    RichString_prune(header);
    ProcessField* fields = this->settings->fields;
    for (int i = 0; fields[i]; i++) {
       const char* field = Process_fields[fields[i]].title;
       if (!field) field = "- ";
       if (!this->settings->treeView && this->settings->sortKey == fields[i])
          RichString_append(header, CRT_colors[PANEL_HIGHLIGHT_FOCUS], field);
       else
          RichString_append(header, CRT_colors[PANEL_HEADER_FOCUS], field);
    }
 }

 void ProcessList_add(ProcessList* this, Process* p) {
    assert(Vector_indexOf(this->processes, p, Process_pidCompare) == -1);
    assert(Hashtable_get(this->processTable, p->pid) == NULL);

    Vector_add(this->processes, p);
    Hashtable_put(this->processTable, p->pid, p);

    assert(Vector_indexOf(this->processes, p, Process_pidCompare) != -1);
    assert(Hashtable_get(this->processTable, p->pid) != NULL);
    assert(Hashtable_count(this->processTable) == Vector_count(this->processes));
 }

 void ProcessList_remove(ProcessList* this, Process* p) {
    assert(Vector_indexOf(this->processes, p, Process_pidCompare) != -1);
    assert(Hashtable_get(this->processTable, p->pid) != NULL);
    Process* pp = Hashtable_remove(this->processTable, p->pid);
    assert(pp == p); (void)pp;
    unsigned int pid = p->pid;
    int idx = Vector_indexOf(this->processes, p, Process_pidCompare);
    assert(idx != -1);
    if (idx >= 0) Vector_remove(this->processes, idx);
    assert(Hashtable_get(this->processTable, pid) == NULL); (void)pid;
    assert(Hashtable_count(this->processTable) == Vector_count(this->processes));
 }

 Process* ProcessList_get(ProcessList* this, int idx) {
    return (Process*) (Vector_get(this->processes, idx));
 }

 int ProcessList_size(ProcessList* this) {
    return (Vector_size(this->processes));
 }

 static void ProcessList_buildTree(ProcessList* this, pid_t pid, int level, int indent, int direction, bool show) {
    Vector* children = Vector_new(Class(Process), false, DEFAULT_SIZE);

    for (int i = Vector_size(this->processes) - 1; i >= 0; i--) {
       Process* process = (Process*) (Vector_get(this->processes, i));
       if (process->tgid == pid || (process->tgid == process->pid && process->ppid == pid)) {
          process = (Process*) (Vector_take(this->processes, i));
          Vector_add(children, process);
       }
    }
    int size = Vector_size(children);
    for (int i = 0; i < size; i++) {
       Process* process = (Process*) (Vector_get(children, i));
       if (!show)
          process->show = false;
       int s = this->processes2->items;
       if (direction == 1)
          Vector_add(this->processes2, process);
       else
          Vector_insert(this->processes2, 0, process);
       assert(this->processes2->items == s+1); (void)s;
       int nextIndent = indent | (1 << level);
       ProcessList_buildTree(this, process->pid, level+1, (i < size - 1) ? nextIndent : indent, direction, show ? process->showChildren : false);
       if (i == size - 1)
          process->indent = -nextIndent;
       else
          process->indent = nextIndent;
    }
    Vector_delete(children);
 }

 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;
       // Take PID 1 as root and add to the new listing
       int vsize = Vector_size(this->processes);
       Process* init = (Process*) (Vector_take(this->processes, 0));
       if (!init) return;
       // This assertion crashes on hardened kernels.
       // I wonder how well tree view works on those systems.
       // assert(init->pid == 1);
       init->indent = 0;
       Vector_add(this->processes2, init);
       // Recursively empty list
       ProcessList_buildTree(this, init->pid, 0, 0, direction, true);
       // Add leftovers
       while (Vector_size(this->processes)) {
          Process* p = (Process*) (Vector_take(this->processes, 0));
          p->indent = 0;
          Vector_add(this->processes2, p);
          ProcessList_buildTree(this, p->pid, 0, 0, direction, p->showChildren);
       }
       assert(Vector_size(this->processes2) == vsize); (void)vsize;
       assert(Vector_size(this->processes) == 0);
       // Swap listings around
       Vector* t = this->processes;
       this->processes = this->processes2;
       this->processes2 = t;
    }
 }


 ProcessField ProcessList_keyAt(ProcessList* this, int at) {
    int x = 0;
    ProcessField* fields = this->settings->fields;
    ProcessField field;
    for (int i = 0; (field = fields[i]); i++) {
       const char* title = Process_fields[field].title;
       if (!title) title = "- ";
       int len = strlen(title);
       if (at >= x && at <= x + len) {
          return field;
       }
       x += len;
    }
    return COMM;
 }

 void ProcessList_expandTree(ProcessList* this) {
    int size = Vector_size(this->processes);
    for (int i = 0; i < size; i++) {
       Process* process = (Process*) Vector_get(this->processes, i);
       process->showChildren = true;
    }
 }

 void ProcessList_rebuildPanel(ProcessList* this) {
    const char* incFilter = this->incFilter;

    int currPos = Panel_getSelectedIndex(this->panel);
    pid_t currPid = this->following != -1 ? this->following : 0;
    int currScrollV = this->panel->scrollV;

    Panel_prune(this->panel);
    int size = ProcessList_size(this);
    int idx = 0;
    for (int i = 0; i < size; i++) {
       bool hidden = false;
       Process* p = ProcessList_get(this, i);

       if ( (!p->show)
          || (this->userId != (uid_t) -1 && (p->st_uid != this->userId))
          || (incFilter && !(String_contains_i(p->comm, incFilter)))
          || (this->pidWhiteList && !Hashtable_get(this->pidWhiteList, p->pid)) )
          hidden = true;

       if (!hidden) {
          Panel_set(this->panel, idx, (Object*)p);
          if ((this->following == -1 && idx == currPos) || (this->following != -1 && p->pid == currPid)) {
             Panel_setSelected(this->panel, idx);
             this->panel->scrollV = currScrollV;
          }
          idx++;
       }
    }
 }

 Process* ProcessList_getProcess(ProcessList* this, pid_t pid, bool* preExisting, Process_new_fn constructor) {
    Process* proc = (Process*) Hashtable_get(this->processTable, pid);
    *preExisting = proc;
    if (proc) {
       assert(Vector_indexOf(this->processes, proc, Process_pidCompare) != -1);
       assert(proc->pid == pid);
    } else {
       proc = constructor(this->settings);
       assert(proc->comm == NULL);
       proc->pid = pid;
    }
    return proc;
 }

 void ProcessList_scan(ProcessList* this) {

    // mark all process as "dirty"
    for (int i = 0; i < Vector_size(this->processes); i++) {
       Process* p = (Process*) Vector_get(this->processes, i);
       p->updated = false;
    }

    this->totalTasks = 0;
    this->userlandThreads = 0;
    this->kernelThreads = 0;
    this->runningTasks = 0;

    ProcessList_goThroughEntries(this);

    for (int i = Vector_size(this->processes) - 1; i >= 0; i--) {
       Process* p = (Process*) Vector_get(this->processes, i);
       if (p->updated == false)
          ProcessList_remove(this, p);
       else
          p->updated = false;
    }
 }
	/*
	htop - ProcessList.c
	(C) 2004,2005 Hisham H. Muhammad
	Released under the GNU GPL, see the COPYING file
	in the source distribution for its full text.
	*/

	#include "ProcessList.h"
	#include "Platform.h"

	#include "CRT.h"
	#include "String.h"

	#include <stdlib.h>
	#include <string.h>

	/*{
	#include "Vector.h"
	#include "Hashtable.h"
	#include "UsersTable.h"
	#include "Panel.h"
	#include "Process.h"
	#include "Settings.h"

	#ifndef MAX_NAME
	#define MAX_NAME 128
	#endif

	#ifndef MAX_READ
	#define MAX_READ 2048
	#endif

	typedef struct ProcessList_ {
	Settings* settings;

	Vector* processes;
	Vector* processes2;
	Hashtable* processTable;
	UsersTable* usersTable;

	Panel* panel;
	int following;
	uid_t userId;
	const char* incFilter;
	Hashtable* pidWhiteList;

	#ifdef HAVE_LIBHWLOC
	hwloc_topology_t topology;
	bool topologyOk;
	#endif

	int totalTasks;
	int runningTasks;
	int userlandThreads;
	int kernelThreads;

	unsigned long long int totalMem;
	unsigned long long int usedMem;
	unsigned long long int freeMem;
	unsigned long long int sharedMem;
	unsigned long long int buffersMem;
	unsigned long long int cachedMem;
	unsigned long long int totalSwap;
	unsigned long long int usedSwap;
	unsigned long long int freeSwap;

	int cpuCount;

	} ProcessList;

	ProcessList* ProcessList_new(UsersTable* ut, Hashtable* pidWhiteList, uid_t userId);
	void ProcessList_delete(ProcessList* pl);
	void ProcessList_goThroughEntries(ProcessList* pl);

	}*/

	ProcessList* ProcessList_init(ProcessList* this, UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
	this->processes = Vector_new(Class(Process), true, DEFAULT_SIZE);
	this->processTable = Hashtable_new(140, false);
	this->usersTable = usersTable;
	this->pidWhiteList = pidWhiteList;
	this->userId = userId;

	// tree-view auxiliary buffers
	this->processes2 = Vector_new(Class(Process), true, DEFAULT_SIZE);

	// set later by platform-specific code
	this->cpuCount = 0;

	#ifdef HAVE_LIBHWLOC
	this->topologyOk = false;
	int topoErr = hwloc_topology_init(&this->topology);
	if (topoErr == 0) {
	topoErr = hwloc_topology_load(this->topology);
	}
	if (topoErr == 0) {
	this->topologyOk = true;
	}
	#endif

	this->following = -1;

	return this;
	}

	void ProcessList_done(ProcessList* this) {
	Hashtable_delete(this->processTable);
	Vector_delete(this->processes);
	Vector_delete(this->processes2);
	}

	void ProcessList_setPanel(ProcessList* this, Panel* panel) {
	this->panel = panel;
	}

	void ProcessList_printHeader(ProcessList* this, RichString* header) {
	RichString_prune(header);
	ProcessField* fields = this->settings->fields;
	for (int i = 0; fields[i]; i++) {
	const char* field = Process_fields[fields[i]].title;
	if (!field) field = "- ";
	if (!this->settings->treeView && this->settings->sortKey == fields[i])
	RichString_append(header, CRT_colors[PANEL_HIGHLIGHT_FOCUS], field);
	else
	RichString_append(header, CRT_colors[PANEL_HEADER_FOCUS], field);
	}
	}

	void ProcessList_add(ProcessList* this, Process* p) {
	assert(Vector_indexOf(this->processes, p, Process_pidCompare) == -1);
	assert(Hashtable_get(this->processTable, p->pid) == NULL);

	Vector_add(this->processes, p);
	Hashtable_put(this->processTable, p->pid, p);

	assert(Vector_indexOf(this->processes, p, Process_pidCompare) != -1);
	assert(Hashtable_get(this->processTable, p->pid) != NULL);
	assert(Hashtable_count(this->processTable) == Vector_count(this->processes));
	}

	void ProcessList_remove(ProcessList* this, Process* p) {
	assert(Vector_indexOf(this->processes, p, Process_pidCompare) != -1);
	assert(Hashtable_get(this->processTable, p->pid) != NULL);
	Process* pp = Hashtable_remove(this->processTable, p->pid);
	assert(pp == p); (void)pp;
	unsigned int pid = p->pid;
	int idx = Vector_indexOf(this->processes, p, Process_pidCompare);
	assert(idx != -1);
	if (idx >= 0) Vector_remove(this->processes, idx);
	assert(Hashtable_get(this->processTable, pid) == NULL); (void)pid;
	assert(Hashtable_count(this->processTable) == Vector_count(this->processes));
	}

	Process* ProcessList_get(ProcessList* this, int idx) {
	return (Process*) (Vector_get(this->processes, idx));
	}

	int ProcessList_size(ProcessList* this) {
	return (Vector_size(this->processes));
	}

	static void ProcessList_buildTree(ProcessList* this, pid_t pid, int level, int indent, int direction, bool show) {
	Vector* children = Vector_new(Class(Process), false, DEFAULT_SIZE);

	for (int i = Vector_size(this->processes) - 1; i >= 0; i--) {
	Process* process = (Process*) (Vector_get(this->processes, i));
	if (process->tgid == pid \|\| (process->tgid == process->pid && process->ppid == pid)) {
	process = (Process*) (Vector_take(this->processes, i));
	Vector_add(children, process);
	}
	}
	int size = Vector_size(children);
	for (int i = 0; i < size; i++) {
	Process* process = (Process*) (Vector_get(children, i));
	if (!show)
	process->show = false;
	int s = this->processes2->items;
	if (direction == 1)
	Vector_add(this->processes2, process);
	else
	Vector_insert(this->processes2, 0, process);
	assert(this->processes2->items == s+1); (void)s;
	int nextIndent = indent \| (1 << level);
	ProcessList_buildTree(this, process->pid, level+1, (i < size - 1) ? nextIndent : indent, direction, show ? process->showChildren : false);
	if (i == size - 1)
	process->indent = -nextIndent;
	else
	process->indent = nextIndent;
	}
	Vector_delete(children);
	}

	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;
	// Take PID 1 as root and add to the new listing
	int vsize = Vector_size(this->processes);
	Process* init = (Process*) (Vector_take(this->processes, 0));
	if (!init) return;
	// This assertion crashes on hardened kernels.
	// I wonder how well tree view works on those systems.
	// assert(init->pid == 1);
	init->indent = 0;
	Vector_add(this->processes2, init);
	// Recursively empty list
	ProcessList_buildTree(this, init->pid, 0, 0, direction, true);
	// Add leftovers
	while (Vector_size(this->processes)) {
	Process* p = (Process*) (Vector_take(this->processes, 0));
	p->indent = 0;
	Vector_add(this->processes2, p);
	ProcessList_buildTree(this, p->pid, 0, 0, direction, p->showChildren);
	}
	assert(Vector_size(this->processes2) == vsize); (void)vsize;
	assert(Vector_size(this->processes) == 0);
	// Swap listings around
	Vector* t = this->processes;
	this->processes = this->processes2;
	this->processes2 = t;
	}
	}


	ProcessField ProcessList_keyAt(ProcessList* this, int at) {
	int x = 0;
	ProcessField* fields = this->settings->fields;
	ProcessField field;
	for (int i = 0; (field = fields[i]); i++) {
	const char* title = Process_fields[field].title;
	if (!title) title = "- ";
	int len = strlen(title);
	if (at >= x && at <= x + len) {
	return field;
	}
	x += len;
	}
	return COMM;
	}

	void ProcessList_expandTree(ProcessList* this) {
	int size = Vector_size(this->processes);
	for (int i = 0; i < size; i++) {
	Process* process = (Process*) Vector_get(this->processes, i);
	process->showChildren = true;
	}
	}

	void ProcessList_rebuildPanel(ProcessList* this) {
	const char* incFilter = this->incFilter;

	int currPos = Panel_getSelectedIndex(this->panel);
	pid_t currPid = this->following != -1 ? this->following : 0;
	int currScrollV = this->panel->scrollV;

	Panel_prune(this->panel);
	int size = ProcessList_size(this);
	int idx = 0;
	for (int i = 0; i < size; i++) {
	bool hidden = false;
	Process* p = ProcessList_get(this, i);

	if ( (!p->show)
	\|\| (this->userId != (uid_t) -1 && (p->st_uid != this->userId))
	\|\| (incFilter && !(String_contains_i(p->comm, incFilter)))
	\|\| (this->pidWhiteList && !Hashtable_get(this->pidWhiteList, p->pid)) )
	hidden = true;

	if (!hidden) {
	Panel_set(this->panel, idx, (Object*)p);
	if ((this->following == -1 && idx == currPos) \|\| (this->following != -1 && p->pid == currPid)) {
	Panel_setSelected(this->panel, idx);
	this->panel->scrollV = currScrollV;
	}
	idx++;
	}
	}
	}

	Process* ProcessList_getProcess(ProcessList* this, pid_t pid, bool* preExisting, Process_new_fn constructor) {
	Process* proc = (Process*) Hashtable_get(this->processTable, pid);
	*preExisting = proc;
	if (proc) {
	assert(Vector_indexOf(this->processes, proc, Process_pidCompare) != -1);
	assert(proc->pid == pid);
	} else {
	proc = constructor(this->settings);
	assert(proc->comm == NULL);
	proc->pid = pid;
	}
	return proc;
	}

	void ProcessList_scan(ProcessList* this) {

	// mark all process as "dirty"
	for (int i = 0; i < Vector_size(this->processes); i++) {
	Process* p = (Process*) Vector_get(this->processes, i);
	p->updated = false;
	}

	this->totalTasks = 0;
	this->userlandThreads = 0;
	this->kernelThreads = 0;
	this->runningTasks = 0;

	ProcessList_goThroughEntries(this);

	for (int i = Vector_size(this->processes) - 1; i >= 0; i--) {
	Process* p = (Process*) Vector_get(this->processes, i);
	if (p->updated == false)
	ProcessList_remove(this, p);
	else
	p->updated = false;
	}
	}