haiku/src/apps/processcontroller/ThreadBarMenu.cpp

142 lines
2.9 KiB
C++

/*
* Copyright 2000, Georges-Edouard Berenger. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include "ThreadBarMenu.h"
#include "PriorityMenu.h"
#include "ProcessController.h"
#include "ThreadBarMenuItem.h"
#include <stdlib.h>
#include <stdio.h>
#define EXTRA 20
ThreadBarMenu::ThreadBarMenu(const char *title, team_id team, int32 threadCount)
: BMenu(title),
fThreadsRecCount(threadCount + EXTRA),
fTeam(team)
{
SetFont(be_plain_font);
fThreadsRec = (ThreadRec*) malloc(sizeof(ThreadRec) * fThreadsRecCount);
Init();
fRound = 0; // for syslog
AddNew();
}
ThreadBarMenu::~ThreadBarMenu()
{
free(fThreadsRec);
if (gCurrentThreadBarMenu == this)
gCurrentThreadBarMenu = NULL;
}
void
ThreadBarMenu::Init()
{
int k = 0;
while (k < fThreadsRecCount)
fThreadsRec[k++].thread = -1;
fRound = 1;
}
void
ThreadBarMenu::Reset(team_id team)
{
fTeam = team;
RemoveItems(0, CountItems(), true);
Init();
}
void
ThreadBarMenu::AttachedToWindow()
{
BMenu::AttachedToWindow();
}
void
ThreadBarMenu::Draw(BRect r)
{
gCurrentThreadBarMenu = this;
BMenu::Draw(r);
}
void
ThreadBarMenu::AddNew()
{
thread_info info;
int32 cookie = 0;
int32 k = 0;
while (get_next_thread_info(fTeam, &cookie, &info) == B_OK) {
int lastk = k;
while (k < fThreadsRecCount && fThreadsRec[k].thread != info.thread)
k++;
if (k == fThreadsRecCount) {
k = 0;
while (k < lastk && fThreadsRec[k].thread != info.thread)
k++;
if (k == lastk)
k = fThreadsRecCount; // flag that the search didn't work.
}
if (k == fThreadsRecCount) {
// printf("*** Thread %d %s/%s, user %Ld, kernel %Ld\n", info.thread, info.name, info.user_time, info.kernel_time);
// this is a new thread...
k = 0;
while (k < fThreadsRecCount && !(fThreadsRec[k].thread == -1 || fThreadsRec[k].last_round+1 < fRound))
k++;
if (k == fThreadsRecCount) {
fThreadsRecCount += EXTRA;
fThreadsRec = (ThreadRec*) realloc(fThreadsRec, sizeof(ThreadRec)*fThreadsRecCount);
lastk = k;
while (lastk < fThreadsRecCount)
fThreadsRec[lastk++].thread = -1;
}
fThreadsRec[k].thread = info.thread;
BMessage* kill_thread = new BMessage('KlTh');
kill_thread->AddInt32("thread", info.thread);
PriorityMenu* prio = new PriorityMenu(info.thread, info.priority);
prio->SetFont(be_plain_font);
ThreadBarMenuItem* threadbarmenuitem = new ThreadBarMenuItem(info.name, info.thread, prio, kill_thread);
threadbarmenuitem->SetTarget(gPCView);
AddItem(threadbarmenuitem);
}
fThreadsRec[k].last_round = fRound;
}
fRound++;
}
void
ThreadBarMenu::Update()
{
AddNew();
int32 k, del;
del = -1;
ThreadBarMenuItem *item;
for (k = 0; (item = (ThreadBarMenuItem*) ItemAt(k)) != NULL; k++) {
item->BarUpdate();
item->DrawBar(false);
if (item->fKernel < 0) {
if (del < 0)
del = k;
} else if (del >= 0) {
RemoveItems(del, k-del, true);
k = del;
del = -1;
}
}
if (del >= 0)
RemoveItems(del, k-del, true);
}