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/* Procman process actions
* Copyright (C) 2001 Kevin Vandersloot
* Copyright (C) 2012-2021 MATE Developers
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <config.h>
#include <errno.h>
#include <glib/gi18n.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/resource.h>
#include "procactions.h"
#include "procman.h"
#include "proctable.h"
#include "procdialogs.h"
#include "callbacks.h"
static void
renice_single_process (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
const struct ReniceArgs * const args = static_cast<ReniceArgs*>(data);
ProcInfo *info = NULL;
gint error;
int saved_errno;
gchar *error_msg;
GtkWidget *dialog;
gtk_tree_model_get (model, iter, COL_POINTER, &info, -1);
if (!info)
return;
if (info->nice == args->nice_value)
return;
error = setpriority (PRIO_PROCESS, info->pid, args->nice_value);
/* success */
if(error != -1) return;
saved_errno = errno;
/* need to be root */
if(errno == EPERM || errno == EACCES) {
gboolean success;
success = procdialog_create_root_password_dialog (
PROCMAN_ACTION_RENICE, args->procdata, info->pid,
args->nice_value);
if(success) return;
if(errno) {
saved_errno = errno;
}
}
/* failed */
error_msg = g_strdup_printf (
_("Cannot change the priority of process with PID %d to %d.\n"
"%s"),
info->pid, args->nice_value, g_strerror(saved_errno));
dialog = gtk_message_dialog_new (
NULL,
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
"%s", error_msg);
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
g_free (error_msg);
}
void
renice (ProcData *procdata, int nice)
{
struct ReniceArgs args = { procdata, nice };
/* EEEK - ugly hack - make sure the table is not updated as a crash
** occurs if you first kill a process and the tree node is removed while
** still in the foreach function
*/
g_source_remove(procdata->timeout);
gtk_tree_selection_selected_foreach(procdata->selection, renice_single_process,
&args);
procdata->timeout = g_timeout_add(procdata->config.update_interval,
cb_timeout,
procdata);
proctable_update (procdata);
}
static void
kill_single_process (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
const struct KillArgs * const args = static_cast<KillArgs*>(data);
char *error_msg;
ProcInfo *info;
int error;
int saved_errno;
GtkWidget *dialog;
gtk_tree_model_get (model, iter, COL_POINTER, &info, -1);
if (!info)
return;
error = kill (info->pid, args->signal);
/* success */
if(error != -1) return;
saved_errno = errno;
/* need to be root */
if(errno == EPERM) {
gboolean success;
success = procdialog_create_root_password_dialog (
PROCMAN_ACTION_KILL, args->procdata, info->pid,
args->signal);
if(success) return;
if(errno) {
saved_errno = errno;
}
}
/* failed */
error_msg = g_strdup_printf (
_("Cannot kill process with PID %d with signal %d.\n"
"%s"),
info->pid, args->signal, g_strerror(saved_errno));
dialog = gtk_message_dialog_new (
NULL,
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
"%s", error_msg);
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
g_free (error_msg);
}
void
kill_process (ProcData *procdata, int sig)
{
struct KillArgs args = { procdata, sig };
/* EEEK - ugly hack - make sure the table is not updated as a crash
** occurs if you first kill a process and the tree node is removed while
** still in the foreach function
*/
g_source_remove (procdata->timeout);
gtk_tree_selection_selected_foreach (procdata->selection, kill_single_process,
&args);
procdata->timeout = g_timeout_add (procdata->config.update_interval,
cb_timeout,
procdata);
proctable_update (procdata);
}
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