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Add read-only option

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Add command line option to disable all system and process changing
features.
This commit is contained in:
Christian Göttsche
2021-01-21 20:27:37 +01:00
committed by cgzones
parent 812cfcb94d
commit 36880cd61c
12 changed files with 108 additions and 42 deletions
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98
Action.c
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@ -254,11 +254,17 @@ static Htop_Reaction actionIncSearch(State* st) {
}
static Htop_Reaction actionHigherPriority(State* st) {
if (Settings_isReadonly())
return HTOP_OK;
bool changed = changePriority(st->mainPanel, -1);
return changed ? HTOP_REFRESH : HTOP_OK;
}
static Htop_Reaction actionLowerPriority(State* st) {
if (Settings_isReadonly())
return HTOP_OK;
bool changed = changePriority(st->mainPanel, 1);
return changed ? HTOP_REFRESH : HTOP_OK;
}
@ -292,6 +298,9 @@ static Htop_Reaction actionQuit(ATTR_UNUSED State* st) {
}
static Htop_Reaction actionSetAffinity(State* st) {
if (Settings_isReadonly())
return HTOP_OK;
if (st->pl->cpuCount == 1)
return HTOP_OK;
@ -323,6 +332,9 @@ static Htop_Reaction actionSetAffinity(State* st) {
}
static Htop_Reaction actionKill(State* st) {
if (Settings_isReadonly())
return HTOP_OK;
Panel* signalsPanel = SignalsPanel_new();
const ListItem* sgn = (ListItem*) Action_pickFromVector(st, signalsPanel, 15, true);
if (sgn && sgn->key != 0) {
@ -370,6 +382,9 @@ static Htop_Reaction actionSetup(State* st) {
}
static Htop_Reaction actionLsof(State* st) {
if (Settings_isReadonly())
return HTOP_OK;
const Process* p = (Process*) Panel_getSelected((Panel*)st->mainPanel);
if (!p)
return HTOP_OK;
@ -394,6 +409,9 @@ static Htop_Reaction actionShowLocks(State* st) {
}
static Htop_Reaction actionStrace(State* st) {
if (Settings_isReadonly())
return HTOP_OK;
const Process* p = (Process*) Panel_getSelected((Panel*)st->mainPanel);
if (!p)
return HTOP_OK;
@ -431,49 +449,51 @@ static Htop_Reaction actionTogglePauseProcessUpdate(State* st) {
static const struct {
const char* key;
bool roInactive;
const char* info;
} helpLeft[] = {
{ .key = " Arrows: ", .info = "scroll process list" },
{ .key = " Digits: ", .info = "incremental PID search" },
{ .key = " F3 /: ", .info = "incremental name search" },
{ .key = " F4 \\: ",.info = "incremental name filtering" },
{ .key = " F5 t: ", .info = "tree view" },
{ .key = " p: ", .info = "toggle program path" },
{ .key = " m: ", .info = "toggle merged command" },
{ .key = " Z: ", .info = "pause/resume process updates" },
{ .key = " u: ", .info = "show processes of a single user" },
{ .key = " H: ", .info = "hide/show user process threads" },
{ .key = " K: ", .info = "hide/show kernel threads" },
{ .key = " F: ", .info = "cursor follows process" },
{ .key = " + - *: ", .info = "expand/collapse tree/toggle all" },
{ .key = "N P M T: ", .info = "sort by PID, CPU%, MEM% or TIME" },
{ .key = " I: ", .info = "invert sort order" },
{ .key = " F6 > .: ", .info = "select sort column" },
{ .key = " Arrows: ", .roInactive = false, .info = "scroll process list" },
{ .key = " Digits: ", .roInactive = false, .info = "incremental PID search" },
{ .key = " F3 /: ", .roInactive = false, .info = "incremental name search" },
{ .key = " F4 \\: ", .roInactive = false, .info = "incremental name filtering" },
{ .key = " F5 t: ", .roInactive = false, .info = "tree view" },
{ .key = " p: ", .roInactive = false, .info = "toggle program path" },
{ .key = " m: ", .roInactive = false, .info = "toggle merged command" },
{ .key = " Z: ", .roInactive = false, .info = "pause/resume process updates" },
{ .key = " u: ", .roInactive = false, .info = "show processes of a single user" },
{ .key = " H: ", .roInactive = false, .info = "hide/show user process threads" },
{ .key = " K: ", .roInactive = false, .info = "hide/show kernel threads" },
{ .key = " F: ", .roInactive = false, .info = "cursor follows process" },
{ .key = " + - *: ", .roInactive = false, .info = "expand/collapse tree/toggle all" },
{ .key = "N P M T: ", .roInactive = false, .info = "sort by PID, CPU%, MEM% or TIME" },
{ .key = " I: ", .roInactive = false, .info = "invert sort order" },
{ .key = " F6 > .: ", .roInactive = false, .info = "select sort column" },
{ .key = NULL, .info = NULL }
};
static const struct {
const char* key;
bool roInactive;
const char* info;
} helpRight[] = {
{ .key = " Space: ", .info = "tag process" },
{ .key = " c: ", .info = "tag process and its children" },
{ .key = " U: ", .info = "untag all processes" },
{ .key = " F9 k: ", .info = "kill process/tagged processes" },
{ .key = " F7 ]: ", .info = "higher priority (root only)" },
{ .key = " F8 [: ", .info = "lower priority (+ nice)" },
{ .key = " Space: ", .roInactive = false, .info = "tag process" },
{ .key = " c: ", .roInactive = false, .info = "tag process and its children" },
{ .key = " U: ", .roInactive = false, .info = "untag all processes" },
{ .key = " F9 k: ", .roInactive = true, .info = "kill process/tagged processes" },
{ .key = " F7 ]: ", .roInactive = true, .info = "higher priority (root only)" },
{ .key = " F8 [: ", .roInactive = false, .info = "lower priority (+ nice)" },
#if (defined(HAVE_LIBHWLOC) || defined(HAVE_LINUX_AFFINITY))
{ .key = " a: ", .info = "set CPU affinity" },
{ .key = " a: ", .roInactive = true, .info = "set CPU affinity" },
#endif
{ .key = " e: ", .info = "show process environment" },
{ .key = " i: ", .info = "set IO priority" },
{ .key = " l: ", .info = "list open files with lsof" },
{ .key = " x: ", .info = "list file locks of process" },
{ .key = " s: ", .info = "trace syscalls with strace" },
{ .key = " w: ", .info = "wrap process command in multiple lines" },
{ .key = " F2 C S: ", .info = "setup" },
{ .key = " F1 h: ", .info = "show this help screen" },
{ .key = " F10 q: ", .info = "quit" },
{ .key = " e: ", .roInactive = false, .info = "show process environment" },
{ .key = " i: ", .roInactive = true, .info = "set IO priority" },
{ .key = " l: ", .roInactive = true, .info = "list open files with lsof" },
{ .key = " x: ", .roInactive = false, .info = "list file locks of process" },
{ .key = " s: ", .roInactive = true, .info = "trace syscalls with strace" },
{ .key = " w: ", .roInactive = false, .info = "wrap process command in multiple lines" },
{ .key = " F2 C S: ", .roInactive = false, .info = "setup" },
{ .key = " F1 h: ", .roInactive = false, .info = "show this help screen" },
{ .key = " F10 q: ", .roInactive = false, .info = "quit" },
{ .key = NULL, .info = NULL }
};
@ -549,26 +569,28 @@ static Htop_Reaction actionHelp(State* st) {
line++;
const bool readonly = Settings_isReadonly();
int item;
for (item = 0; helpLeft[item].key; item++) {
attrset(CRT_colors[DEFAULT_COLOR]);
attrset((helpLeft[item].roInactive && readonly) ? CRT_colors[HELP_SHADOW] : CRT_colors[DEFAULT_COLOR]);
mvaddstr(line + item, 10, helpLeft[item].info);
attrset(CRT_colors[HELP_BOLD]);
attrset((helpLeft[item].roInactive && readonly) ? CRT_colors[HELP_SHADOW] : CRT_colors[HELP_BOLD]);
mvaddstr(line + item, 1, helpLeft[item].key);
if (String_eq(helpLeft[item].key, " H: ")) {
attrset(CRT_colors[PROCESS_THREAD]);
attrset((helpLeft[item].roInactive && readonly) ? CRT_colors[HELP_SHADOW] : CRT_colors[PROCESS_THREAD]);
mvaddstr(line + item, 33, "threads");
} else if (String_eq(helpLeft[item].key, " K: ")) {
attrset(CRT_colors[PROCESS_THREAD]);
attrset((helpLeft[item].roInactive && readonly) ? CRT_colors[HELP_SHADOW] : CRT_colors[PROCESS_THREAD]);
mvaddstr(line + item, 27, "threads");
}
}
int leftHelpItems = item;
for (item = 0; helpRight[item].key; item++) {
attrset(CRT_colors[HELP_BOLD]);
attrset((helpRight[item].roInactive && readonly) ? CRT_colors[HELP_SHADOW] : CRT_colors[HELP_BOLD]);
mvaddstr(line + item, 41, helpRight[item].key);
attrset(CRT_colors[DEFAULT_COLOR]);
attrset((helpRight[item].roInactive && readonly) ? CRT_colors[HELP_SHADOW] : CRT_colors[DEFAULT_COLOR]);
mvaddstr(line + item, 50, helpRight[item].info);
}
line += MAXIMUM(leftHelpItems, item);