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htop/CRT.c

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/*
htop - CRT.c
(C) 2004-2011 Hisham H. Muhammad
Released under the GNU GPLv2, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
#include "CRT.h"
#include <errno.h>
#include <langinfo.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ProvideCurses.h"
#include "XUtils.h"
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#endif
#define ColorIndex(i,j) ((7-(i))*8+(j))
#define ColorPair(i,j) COLOR_PAIR(ColorIndex(i,j))
#define Black COLOR_BLACK
#define Red COLOR_RED
#define Green COLOR_GREEN
#define Yellow COLOR_YELLOW
#define Blue COLOR_BLUE
#define Magenta COLOR_MAGENTA
#define Cyan COLOR_CYAN
#define White COLOR_WHITE
#define ColorPairGrayBlack ColorPair(Magenta,Magenta)
#define ColorIndexGrayBlack ColorIndex(Magenta,Magenta)
static const char* const CRT_treeStrAscii[TREE_STR_COUNT] = {
"-", // TREE_STR_HORZ
"|", // TREE_STR_VERT
"`", // TREE_STR_RTEE
"`", // TREE_STR_BEND
",", // TREE_STR_TEND
"+", // TREE_STR_OPEN
"-", // TREE_STR_SHUT
};
#ifdef HAVE_LIBNCURSESW
static const char* const CRT_treeStrUtf8[TREE_STR_COUNT] = {
"\xe2\x94\x80", // TREE_STR_HORZ ─
"\xe2\x94\x82", // TREE_STR_VERT │
"\xe2\x94\x9c", // TREE_STR_RTEE ├
"\xe2\x94\x94", // TREE_STR_BEND └
"\xe2\x94\x8c", // TREE_STR_TEND ┌
"+", // TREE_STR_OPEN +, TODO use 🮯 'BOX DRAWINGS LIGHT HORIZONTAL
// WITH VERTICAL STROKE' (U+1FBAF, "\xf0\x9f\xae\xaf") when
// Unicode 13 is common
"\xe2\x94\x80", // TREE_STR_SHUT ─
};
bool CRT_utf8 = false;
#endif
const char* const* CRT_treeStr = CRT_treeStrAscii;
static const int* CRT_delay;
const char* CRT_degreeSign;
static const char* initDegreeSign(void) {
#ifdef HAVE_LIBNCURSESW
if (CRT_utf8)
return "\xc2\xb0";
static char buffer[4];
// this might fail if the current locale does not support wide characters
int r = snprintf(buffer, sizeof(buffer), "%lc", 176);
if (r > 0)
return buffer;
#endif
return "";
}
const int* CRT_colors;
int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[COLORSCHEME_DEFAULT] = {
[RESET_COLOR] = ColorPair(White, Black),
[DEFAULT_COLOR] = ColorPair(White, Black),
[FUNCTION_BAR] = ColorPair(Black, Cyan),
[FUNCTION_KEY] = ColorPair(White, Black),
[PANEL_HEADER_FOCUS] = ColorPair(Black, Green),
[PANEL_HEADER_UNFOCUS] = ColorPair(Black, Green),
[PANEL_SELECTION_FOCUS] = ColorPair(Black, Cyan),
[PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
[PANEL_SELECTION_UNFOCUS] = ColorPair(Black, White),
[FAILED_SEARCH] = ColorPair(Red, Cyan),
[FAILED_READ] = A_BOLD | ColorPair(Red, Black),
[PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
[UPTIME] = A_BOLD | ColorPair(Cyan, Black),
[BATTERY] = A_BOLD | ColorPair(Cyan, Black),
[LARGE_NUMBER] = A_BOLD | ColorPair(Red, Black),
[METER_TEXT] = ColorPair(Cyan, Black),
[METER_VALUE] = A_BOLD | ColorPair(Cyan, Black),
[METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Black),
[METER_VALUE_IOREAD] = ColorPair(Green, Black),
[METER_VALUE_IOWRITE] = ColorPair(Blue, Black),
[METER_VALUE_NOTICE] = A_BOLD | ColorPair(White, Black),
[METER_VALUE_OK] = ColorPair(Green, Black),
[LED_COLOR] = ColorPair(Green, Black),
[TASKS_RUNNING] = A_BOLD | ColorPair(Green, Black),
[PROCESS] = A_NORMAL,
[PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
[PROCESS_TAG] = A_BOLD | ColorPair(Yellow, Black),
[PROCESS_MEGABYTES] = ColorPair(Cyan, Black),
[PROCESS_GIGABYTES] = ColorPair(Green, Black),
[PROCESS_BASENAME] = A_BOLD | ColorPair(Cyan, Black),
[PROCESS_TREE] = ColorPair(Cyan, Black),
[PROCESS_R_STATE] = ColorPair(Green, Black),
[PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Black),
[PROCESS_HIGH_PRIORITY] = ColorPair(Red, Black),
[PROCESS_LOW_PRIORITY] = ColorPair(Green, Black),
[PROCESS_NEW] = ColorPair(Black, Green),
[PROCESS_TOMB] = ColorPair(Black, Red),
[PROCESS_THREAD] = ColorPair(Green, Black),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Green, Black),
[PROCESS_COMM] = ColorPair(Magenta, Black),
[PROCESS_THREAD_COMM] = ColorPair(Blue, Black),
[BAR_BORDER] = A_BOLD,
[BAR_SHADOW] = A_BOLD | ColorPairGrayBlack,
[SWAP] = ColorPair(Red, Black),
[GRAPH_1] = A_BOLD | ColorPair(Cyan, Black),
[GRAPH_2] = ColorPair(Cyan, Black),
[MEMORY_USED] = ColorPair(Green, Black),
[MEMORY_BUFFERS] = ColorPair(Blue, Black),
[MEMORY_BUFFERS_TEXT] = A_BOLD | ColorPair(Blue, Black),
[MEMORY_CACHE] = ColorPair(Yellow, Black),
[LOAD_AVERAGE_FIFTEEN] = ColorPair(Cyan, Black),
[LOAD_AVERAGE_FIVE] = A_BOLD | ColorPair(Cyan, Black),
[LOAD_AVERAGE_ONE] = A_BOLD | ColorPair(White, Black),
[LOAD] = A_BOLD,
[HELP_BOLD] = A_BOLD | ColorPair(Cyan, Black),
[CLOCK] = A_BOLD,
[DATE] = A_BOLD,
[DATETIME] = A_BOLD,
[CHECK_BOX] = ColorPair(Cyan, Black),
[CHECK_MARK] = A_BOLD,
[CHECK_TEXT] = A_NORMAL,
[HOSTNAME] = A_BOLD,
[CPU_NICE] = ColorPair(Blue, Black),
[CPU_NICE_TEXT] = A_BOLD | ColorPair(Blue, Black),
[CPU_NORMAL] = ColorPair(Green, Black),
[CPU_SYSTEM] = ColorPair(Red, Black),
[CPU_IOWAIT] = A_BOLD | ColorPairGrayBlack,
[CPU_IRQ] = ColorPair(Yellow, Black),
[CPU_SOFTIRQ] = ColorPair(Magenta, Black),
[CPU_STEAL] = ColorPair(Cyan, Black),
[CPU_GUEST] = ColorPair(Cyan, Black),
[PRESSURE_STALL_THREEHUNDRED] = ColorPair(Cyan, Black),
[PRESSURE_STALL_SIXTY] = A_BOLD | ColorPair(Cyan, Black),
[PRESSURE_STALL_TEN] = A_BOLD | ColorPair(White, Black),
[ZFS_MFU] = ColorPair(Blue, Black),
[ZFS_MRU] = ColorPair(Yellow, Black),
[ZFS_ANON] = ColorPair(Magenta, Black),
[ZFS_HEADER] = ColorPair(Cyan, Black),
[ZFS_OTHER] = ColorPair(Magenta, Black),
[ZFS_COMPRESSED] = ColorPair(Blue, Black),
[ZFS_RATIO] = ColorPair(Magenta, Black),
[ZRAM] = ColorPair(Yellow, Black),
},
[COLORSCHEME_MONOCHROME] = {
[RESET_COLOR] = A_NORMAL,
[DEFAULT_COLOR] = A_NORMAL,
[FUNCTION_BAR] = A_REVERSE,
[FUNCTION_KEY] = A_NORMAL,
[PANEL_HEADER_FOCUS] = A_REVERSE,
[PANEL_HEADER_UNFOCUS] = A_REVERSE,
[PANEL_SELECTION_FOCUS] = A_REVERSE,
[PANEL_SELECTION_FOLLOW] = A_REVERSE,
[PANEL_SELECTION_UNFOCUS] = A_BOLD,
[FAILED_SEARCH] = A_REVERSE | A_BOLD,
[FAILED_READ] = A_BOLD,
[PAUSED] = A_BOLD | A_REVERSE,
[UPTIME] = A_BOLD,
[BATTERY] = A_BOLD,
[LARGE_NUMBER] = A_BOLD,
[METER_TEXT] = A_NORMAL,
[METER_VALUE] = A_BOLD,
[METER_VALUE_ERROR] = A_BOLD,
[METER_VALUE_IOREAD] = A_NORMAL,
[METER_VALUE_IOWRITE] = A_NORMAL,
[METER_VALUE_NOTICE] = A_BOLD,
[METER_VALUE_OK] = A_NORMAL,
[LED_COLOR] = A_NORMAL,
[TASKS_RUNNING] = A_BOLD,
[PROCESS] = A_NORMAL,
[PROCESS_SHADOW] = A_DIM,
[PROCESS_TAG] = A_BOLD,
[PROCESS_MEGABYTES] = A_BOLD,
[PROCESS_GIGABYTES] = A_BOLD,
[PROCESS_BASENAME] = A_BOLD,
[PROCESS_TREE] = A_BOLD,
[PROCESS_R_STATE] = A_BOLD,
[PROCESS_D_STATE] = A_BOLD,
[PROCESS_HIGH_PRIORITY] = A_BOLD,
[PROCESS_LOW_PRIORITY] = A_DIM,
[PROCESS_NEW] = A_BOLD,
[PROCESS_TOMB] = A_DIM,
[PROCESS_THREAD] = A_BOLD,
[PROCESS_THREAD_BASENAME] = A_REVERSE,
[PROCESS_COMM] = A_BOLD,
[PROCESS_THREAD_COMM] = A_REVERSE,
[BAR_BORDER] = A_BOLD,
[BAR_SHADOW] = A_DIM,
[SWAP] = A_BOLD,
[GRAPH_1] = A_BOLD,
[GRAPH_2] = A_NORMAL,
[MEMORY_USED] = A_BOLD,
[MEMORY_BUFFERS] = A_NORMAL,
[MEMORY_BUFFERS_TEXT] = A_NORMAL,
[MEMORY_CACHE] = A_NORMAL,
[LOAD_AVERAGE_FIFTEEN] = A_DIM,
[LOAD_AVERAGE_FIVE] = A_NORMAL,
[LOAD_AVERAGE_ONE] = A_BOLD,
[LOAD] = A_BOLD,
[HELP_BOLD] = A_BOLD,
[CLOCK] = A_BOLD,
[DATE] = A_BOLD,
[DATETIME] = A_BOLD,
[CHECK_BOX] = A_BOLD,
[CHECK_MARK] = A_NORMAL,
[CHECK_TEXT] = A_NORMAL,
[HOSTNAME] = A_BOLD,
[CPU_NICE] = A_NORMAL,
[CPU_NICE_TEXT] = A_NORMAL,
[CPU_NORMAL] = A_BOLD,
[CPU_SYSTEM] = A_BOLD,
[CPU_IOWAIT] = A_NORMAL,
[CPU_IRQ] = A_BOLD,
[CPU_SOFTIRQ] = A_BOLD,
[CPU_STEAL] = A_DIM,
[CPU_GUEST] = A_DIM,
[PRESSURE_STALL_THREEHUNDRED] = A_DIM,
[PRESSURE_STALL_SIXTY] = A_NORMAL,
[PRESSURE_STALL_TEN] = A_BOLD,
[ZFS_MFU] = A_NORMAL,
[ZFS_MRU] = A_NORMAL,
[ZFS_ANON] = A_DIM,
[ZFS_HEADER] = A_BOLD,
[ZFS_OTHER] = A_DIM,
[ZFS_COMPRESSED] = A_BOLD,
[ZFS_RATIO] = A_BOLD,
[ZRAM] = A_NORMAL,
},
[COLORSCHEME_BLACKONWHITE] = {
[RESET_COLOR] = ColorPair(Black, White),
[DEFAULT_COLOR] = ColorPair(Black, White),
[FUNCTION_BAR] = ColorPair(Black, Cyan),
[FUNCTION_KEY] = ColorPair(Black, White),
[PANEL_HEADER_FOCUS] = ColorPair(Black, Green),
[PANEL_HEADER_UNFOCUS] = ColorPair(Black, Green),
[PANEL_SELECTION_FOCUS] = ColorPair(Black, Cyan),
[PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
[PANEL_SELECTION_UNFOCUS] = ColorPair(Blue, White),
[FAILED_SEARCH] = ColorPair(Red, Cyan),
[FAILED_READ] = ColorPair(Red, White),
[PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
[UPTIME] = ColorPair(Yellow, White),
[BATTERY] = ColorPair(Yellow, White),
[LARGE_NUMBER] = ColorPair(Red, White),
[METER_TEXT] = ColorPair(Blue, White),
[METER_VALUE] = ColorPair(Black, White),
[METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, White),
[METER_VALUE_IOREAD] = ColorPair(Green, White),
[METER_VALUE_IOWRITE] = ColorPair(Yellow, White),
[METER_VALUE_NOTICE] = A_BOLD | ColorPair(Yellow, White),
[METER_VALUE_OK] = ColorPair(Green, White),
[LED_COLOR] = ColorPair(Green, White),
[TASKS_RUNNING] = ColorPair(Green, White),
[PROCESS] = ColorPair(Black, White),
[PROCESS_SHADOW] = A_BOLD | ColorPair(Black, White),
[PROCESS_TAG] = ColorPair(White, Blue),
[PROCESS_MEGABYTES] = ColorPair(Blue, White),
[PROCESS_GIGABYTES] = ColorPair(Green, White),
[PROCESS_BASENAME] = ColorPair(Blue, White),
[PROCESS_TREE] = ColorPair(Green, White),
[PROCESS_R_STATE] = ColorPair(Green, White),
[PROCESS_D_STATE] = A_BOLD | ColorPair(Red, White),
[PROCESS_HIGH_PRIORITY] = ColorPair(Red, White),
[PROCESS_LOW_PRIORITY] = ColorPair(Green, White),
[PROCESS_NEW] = ColorPair(White, Green),
[PROCESS_TOMB] = ColorPair(White, Red),
[PROCESS_THREAD] = ColorPair(Blue, White),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, White),
[PROCESS_COMM] = ColorPair(Magenta, White),
[PROCESS_THREAD_COMM] = ColorPair(Green, White),
[BAR_BORDER] = ColorPair(Blue, White),
[BAR_SHADOW] = ColorPair(Black, White),
[SWAP] = ColorPair(Red, White),
[GRAPH_1] = A_BOLD | ColorPair(Blue, White),
[GRAPH_2] = ColorPair(Blue, White),
[MEMORY_USED] = ColorPair(Green, White),
[MEMORY_BUFFERS] = ColorPair(Cyan, White),
[MEMORY_BUFFERS_TEXT] = ColorPair(Cyan, White),
[MEMORY_CACHE] = ColorPair(Yellow, White),
[LOAD_AVERAGE_FIFTEEN] = ColorPair(Black, White),
[LOAD_AVERAGE_FIVE] = ColorPair(Black, White),
[LOAD_AVERAGE_ONE] = ColorPair(Black, White),
[LOAD] = ColorPair(Black, White),
[HELP_BOLD] = ColorPair(Blue, White),
[CLOCK] = ColorPair(Black, White),
[DATE] = ColorPair(Black, White),
[DATETIME] = ColorPair(Black, White),
[CHECK_BOX] = ColorPair(Blue, White),
[CHECK_MARK] = ColorPair(Black, White),
[CHECK_TEXT] = ColorPair(Black, White),
[HOSTNAME] = ColorPair(Black, White),
[CPU_NICE] = ColorPair(Cyan, White),
[CPU_NICE_TEXT] = ColorPair(Cyan, White),
[CPU_NORMAL] = ColorPair(Green, White),
[CPU_SYSTEM] = ColorPair(Red, White),
[CPU_IOWAIT] = A_BOLD | ColorPair(Black, White),
[CPU_IRQ] = ColorPair(Blue, White),
[CPU_SOFTIRQ] = ColorPair(Blue, White),
[CPU_STEAL] = ColorPair(Cyan, White),
[CPU_GUEST] = ColorPair(Cyan, White),
[PRESSURE_STALL_THREEHUNDRED] = ColorPair(Black, White),
[PRESSURE_STALL_SIXTY] = ColorPair(Black, White),
[PRESSURE_STALL_TEN] = ColorPair(Black, White),
[ZFS_MFU] = ColorPair(Cyan, White),
[ZFS_MRU] = ColorPair(Yellow, White),
[ZFS_ANON] = ColorPair(Magenta, White),
[ZFS_HEADER] = ColorPair(Yellow, White),
[ZFS_OTHER] = ColorPair(Magenta, White),
[ZFS_COMPRESSED] = ColorPair(Cyan, White),
[ZFS_RATIO] = ColorPair(Magenta, White),
[ZRAM] = ColorPair(Yellow, White)
},
[COLORSCHEME_LIGHTTERMINAL] = {
[RESET_COLOR] = ColorPair(Blue, Black),
[DEFAULT_COLOR] = ColorPair(Blue, Black),
[FUNCTION_BAR] = ColorPair(Black, Cyan),
[FUNCTION_KEY] = ColorPair(Blue, Black),
[PANEL_HEADER_FOCUS] = ColorPair(Black, Green),
[PANEL_HEADER_UNFOCUS] = ColorPair(Black, Green),
[PANEL_SELECTION_FOCUS] = ColorPair(Black, Cyan),
[PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
[PANEL_SELECTION_UNFOCUS] = ColorPair(Blue, Black),
[FAILED_SEARCH] = ColorPair(Red, Cyan),
[FAILED_READ] = ColorPair(Red, Black),
[PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
[UPTIME] = ColorPair(Yellow, Black),
[BATTERY] = ColorPair(Yellow, Black),
[LARGE_NUMBER] = ColorPair(Red, Black),
[METER_TEXT] = ColorPair(Blue, Black),
[METER_VALUE] = ColorPair(Blue, Black),
[METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Black),
[METER_VALUE_IOREAD] = ColorPair(Green, Black),
[METER_VALUE_IOWRITE] = ColorPair(Yellow, Black),
[METER_VALUE_NOTICE] = A_BOLD | ColorPair(Yellow, Black),
[METER_VALUE_OK] = ColorPair(Green, Black),
[LED_COLOR] = ColorPair(Green, Black),
[TASKS_RUNNING] = ColorPair(Green, Black),
[PROCESS] = ColorPair(Blue, Black),
[PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
[PROCESS_TAG] = ColorPair(Yellow, Blue),
[PROCESS_MEGABYTES] = ColorPair(Blue, Black),
[PROCESS_GIGABYTES] = ColorPair(Green, Black),
[PROCESS_BASENAME] = ColorPair(Green, Black),
[PROCESS_TREE] = ColorPair(Blue, Black),
[PROCESS_R_STATE] = ColorPair(Green, Black),
[PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Black),
[PROCESS_HIGH_PRIORITY] = ColorPair(Red, Black),
[PROCESS_LOW_PRIORITY] = ColorPair(Green, Black),
[PROCESS_NEW] = ColorPair(Black, Green),
[PROCESS_TOMB] = ColorPair(Black, Red),
[PROCESS_THREAD] = ColorPair(Blue, Black),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, Black),
[PROCESS_COMM] = ColorPair(Magenta, Black),
[PROCESS_THREAD_COMM] = ColorPair(Yellow, Black),
[BAR_BORDER] = ColorPair(Blue, Black),
[BAR_SHADOW] = ColorPairGrayBlack,
[SWAP] = ColorPair(Red, Black),
[GRAPH_1] = A_BOLD | ColorPair(Cyan, Black),
[GRAPH_2] = ColorPair(Cyan, Black),
[MEMORY_USED] = ColorPair(Green, Black),
[MEMORY_BUFFERS] = ColorPair(Cyan, Black),
[MEMORY_BUFFERS_TEXT] = ColorPair(Cyan, Black),
[MEMORY_CACHE] = ColorPair(Yellow, Black),
[LOAD_AVERAGE_FIFTEEN] = ColorPair(Blue, Black),
[LOAD_AVERAGE_FIVE] = ColorPair(Blue, Black),
[LOAD_AVERAGE_ONE] = ColorPair(Yellow, Black),
[LOAD] = ColorPair(Yellow, Black),
[HELP_BOLD] = ColorPair(Blue, Black),
[CLOCK] = ColorPair(Yellow, Black),
[DATE] = ColorPair(White, Black),
[DATETIME] = ColorPair(White, Black),
[CHECK_BOX] = ColorPair(Blue, Black),
[CHECK_MARK] = ColorPair(Blue, Black),
[CHECK_TEXT] = ColorPair(Blue, Black),
[HOSTNAME] = ColorPair(Yellow, Black),
[CPU_NICE] = ColorPair(Cyan, Black),
[CPU_NICE_TEXT] = ColorPair(Cyan, Black),
[CPU_NORMAL] = ColorPair(Green, Black),
[CPU_SYSTEM] = ColorPair(Red, Black),
[CPU_IOWAIT] = A_BOLD | ColorPair(Blue, Black),
[CPU_IRQ] = A_BOLD | ColorPair(Blue, Black),
[CPU_SOFTIRQ] = ColorPair(Blue, Black),
[CPU_STEAL] = ColorPair(Blue, Black),
[CPU_GUEST] = ColorPair(Blue, Black),
[PRESSURE_STALL_THREEHUNDRED] = ColorPair(Blue, Black),
[PRESSURE_STALL_SIXTY] = ColorPair(Blue, Black),
[PRESSURE_STALL_TEN] = ColorPair(Blue, Black),
[ZFS_MFU] = ColorPair(Cyan, Black),
[ZFS_MRU] = ColorPair(Yellow, Black),
[ZFS_ANON] = A_BOLD | ColorPair(Magenta, Black),
[ZFS_HEADER] = ColorPair(Blue, Black),
[ZFS_OTHER] = A_BOLD | ColorPair(Magenta, Black),
[ZFS_COMPRESSED] = ColorPair(Cyan, Black),
[ZFS_RATIO] = A_BOLD | ColorPair(Magenta, Black),
[ZRAM] = ColorPair(Yellow, Black),
},
[COLORSCHEME_MIDNIGHT] = {
[RESET_COLOR] = ColorPair(White, Blue),
[DEFAULT_COLOR] = ColorPair(White, Blue),
[FUNCTION_BAR] = ColorPair(Black, Cyan),
[FUNCTION_KEY] = A_NORMAL,
[PANEL_HEADER_FOCUS] = ColorPair(Black, Cyan),
[PANEL_HEADER_UNFOCUS] = ColorPair(Black, Cyan),
[PANEL_SELECTION_FOCUS] = ColorPair(Black, White),
[PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
[PANEL_SELECTION_UNFOCUS] = A_BOLD | ColorPair(Yellow, Blue),
[FAILED_SEARCH] = ColorPair(Red, Cyan),
[FAILED_READ] = A_BOLD | ColorPair(Red, Blue),
[PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
[UPTIME] = A_BOLD | ColorPair(Yellow, Blue),
[BATTERY] = A_BOLD | ColorPair(Yellow, Blue),
[LARGE_NUMBER] = A_BOLD | ColorPair(Red, Blue),
[METER_TEXT] = ColorPair(Cyan, Blue),
[METER_VALUE] = A_BOLD | ColorPair(Cyan, Blue),
[METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Blue),
[METER_VALUE_IOREAD] = ColorPair(Green, Blue),
[METER_VALUE_IOWRITE] = ColorPair(Black, Blue),
[METER_VALUE_NOTICE] = A_BOLD | ColorPair(White, Blue),
[METER_VALUE_OK] = ColorPair(Green, Blue),
[LED_COLOR] = ColorPair(Green, Blue),
[TASKS_RUNNING] = A_BOLD | ColorPair(Green, Blue),
[PROCESS] = ColorPair(White, Blue),
[PROCESS_SHADOW] = A_BOLD | ColorPair(Black, Blue),
[PROCESS_TAG] = A_BOLD | ColorPair(Yellow, Blue),
[PROCESS_MEGABYTES] = ColorPair(Cyan, Blue),
[PROCESS_GIGABYTES] = ColorPair(Green, Blue),
[PROCESS_BASENAME] = A_BOLD | ColorPair(Cyan, Blue),
[PROCESS_TREE] = ColorPair(Cyan, Blue),
[PROCESS_R_STATE] = ColorPair(Green, Blue),
[PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Blue),
[PROCESS_HIGH_PRIORITY] = ColorPair(Red, Blue),
[PROCESS_LOW_PRIORITY] = ColorPair(Green, Blue),
[PROCESS_NEW] = ColorPair(Blue, Green),
[PROCESS_TOMB] = ColorPair(Blue, Red),
[PROCESS_THREAD] = ColorPair(Green, Blue),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Green, Blue),
[PROCESS_COMM] = ColorPair(Magenta, Blue),
[PROCESS_THREAD_COMM] = ColorPair(Black, Blue),
[BAR_BORDER] = A_BOLD | ColorPair(Yellow, Blue),
[BAR_SHADOW] = ColorPair(Cyan, Blue),
[SWAP] = ColorPair(Red, Blue),
[GRAPH_1] = A_BOLD | ColorPair(Cyan, Blue),
[GRAPH_2] = ColorPair(Cyan, Blue),
[MEMORY_USED] = A_BOLD | ColorPair(Green, Blue),
[MEMORY_BUFFERS] = A_BOLD | ColorPair(Cyan, Blue),
[MEMORY_BUFFERS_TEXT] = A_BOLD | ColorPair(Cyan, Blue),
[MEMORY_CACHE] = A_BOLD | ColorPair(Yellow, Blue),
[LOAD_AVERAGE_FIFTEEN] = A_BOLD | ColorPair(Black, Blue),
[LOAD_AVERAGE_FIVE] = A_NORMAL | ColorPair(White, Blue),
[LOAD_AVERAGE_ONE] = A_BOLD | ColorPair(White, Blue),
[LOAD] = A_BOLD | ColorPair(White, Blue),
[HELP_BOLD] = A_BOLD | ColorPair(Cyan, Blue),
[CLOCK] = ColorPair(White, Blue),
[DATE] = ColorPair(White, Blue),
[DATETIME] = ColorPair(White, Blue),
[CHECK_BOX] = ColorPair(Cyan, Blue),
[CHECK_MARK] = A_BOLD | ColorPair(White, Blue),
[CHECK_TEXT] = A_NORMAL | ColorPair(White, Blue),
[HOSTNAME] = ColorPair(White, Blue),
[CPU_NICE] = A_BOLD | ColorPair(Cyan, Blue),
[CPU_NICE_TEXT] = A_BOLD | ColorPair(Cyan, Blue),
[CPU_NORMAL] = A_BOLD | ColorPair(Green, Blue),
[CPU_SYSTEM] = A_BOLD | ColorPair(Red, Blue),
[CPU_IOWAIT] = A_BOLD | ColorPair(Black, Blue),
[CPU_IRQ] = A_BOLD | ColorPair(Black, Blue),
[CPU_SOFTIRQ] = ColorPair(Black, Blue),
[CPU_STEAL] = ColorPair(White, Blue),
[CPU_GUEST] = ColorPair(White, Blue),
[PRESSURE_STALL_THREEHUNDRED] = A_BOLD | ColorPair(Black, Blue),
[PRESSURE_STALL_SIXTY] = A_NORMAL | ColorPair(White, Blue),
[PRESSURE_STALL_TEN] = A_BOLD | ColorPair(White, Blue),
[ZFS_MFU] = A_BOLD | ColorPair(White, Blue),
[ZFS_MRU] = A_BOLD | ColorPair(Yellow, Blue),
[ZFS_ANON] = A_BOLD | ColorPair(Magenta, Blue),
[ZFS_HEADER] = A_BOLD | ColorPair(Yellow, Blue),
[ZFS_OTHER] = A_BOLD | ColorPair(Magenta, Blue),
[ZFS_COMPRESSED] = A_BOLD | ColorPair(White, Blue),
[ZFS_RATIO] = A_BOLD | ColorPair(Magenta, Blue),
[ZRAM] = A_BOLD | ColorPair(Yellow, Blue),
},
[COLORSCHEME_BLACKNIGHT] = {
[RESET_COLOR] = ColorPair(Cyan, Black),
[DEFAULT_COLOR] = ColorPair(Cyan, Black),
[FUNCTION_BAR] = ColorPair(Black, Green),
[FUNCTION_KEY] = ColorPair(Cyan, Black),
[PANEL_HEADER_FOCUS] = ColorPair(Black, Green),
[PANEL_HEADER_UNFOCUS] = ColorPair(Black, Green),
[PANEL_SELECTION_FOCUS] = ColorPair(Black, Cyan),
[PANEL_SELECTION_FOLLOW] = ColorPair(Black, Yellow),
[PANEL_SELECTION_UNFOCUS] = ColorPair(Black, White),
[FAILED_SEARCH] = ColorPair(Red, Green),
[FAILED_READ] = A_BOLD | ColorPair(Red, Black),
[PAUSED] = A_BOLD | ColorPair(Yellow, Green),
[UPTIME] = ColorPair(Green, Black),
[BATTERY] = ColorPair(Green, Black),
[LARGE_NUMBER] = A_BOLD | ColorPair(Red, Black),
[METER_TEXT] = ColorPair(Cyan, Black),
[METER_VALUE] = ColorPair(Green, Black),
[METER_VALUE_ERROR] = A_BOLD | ColorPair(Red, Black),
[METER_VALUE_IOREAD] = ColorPair(Green, Black),
[METER_VALUE_IOWRITE] = ColorPair(Blue, Black),
[METER_VALUE_NOTICE] = A_BOLD | ColorPair(Yellow, Black),
[METER_VALUE_OK] = ColorPair(Green, Black),
[LED_COLOR] = ColorPair(Green, Black),
[TASKS_RUNNING] = A_BOLD | ColorPair(Green, Black),
[PROCESS] = ColorPair(Cyan, Black),
[PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
[PROCESS_TAG] = A_BOLD | ColorPair(Yellow, Black),
[PROCESS_MEGABYTES] = A_BOLD | ColorPair(Green, Black),
[PROCESS_GIGABYTES] = A_BOLD | ColorPair(Yellow, Black),
[PROCESS_BASENAME] = A_BOLD | ColorPair(Green, Black),
[PROCESS_TREE] = ColorPair(Cyan, Black),
[PROCESS_THREAD] = ColorPair(Green, Black),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, Black),
[PROCESS_COMM] = ColorPair(Magenta, Black),
[PROCESS_THREAD_COMM] = ColorPair(Yellow, Black),
[PROCESS_R_STATE] = ColorPair(Green, Black),
[PROCESS_D_STATE] = A_BOLD | ColorPair(Red, Black),
[PROCESS_HIGH_PRIORITY] = ColorPair(Red, Black),
[PROCESS_LOW_PRIORITY] = ColorPair(Green, Black),
[PROCESS_NEW] = ColorPair(Black, Green),
[PROCESS_TOMB] = ColorPair(Black, Red),
[BAR_BORDER] = A_BOLD | ColorPair(Green, Black),
[BAR_SHADOW] = ColorPair(Cyan, Black),
[SWAP] = ColorPair(Red, Black),
[GRAPH_1] = A_BOLD | ColorPair(Green, Black),
[GRAPH_2] = ColorPair(Green, Black),
[MEMORY_USED] = ColorPair(Green, Black),
[MEMORY_BUFFERS] = ColorPair(Blue, Black),
[MEMORY_BUFFERS_TEXT] = A_BOLD | ColorPair(Blue, Black),
[MEMORY_CACHE] = ColorPair(Yellow, Black),
[LOAD_AVERAGE_FIFTEEN] = ColorPair(Green, Black),
[LOAD_AVERAGE_FIVE] = ColorPair(Green, Black),
[LOAD_AVERAGE_ONE] = A_BOLD | ColorPair(Green, Black),
[LOAD] = A_BOLD,
[HELP_BOLD] = A_BOLD | ColorPair(Cyan, Black),
[CLOCK] = ColorPair(Green, Black),
[CHECK_BOX] = ColorPair(Green, Black),
[CHECK_MARK] = A_BOLD | ColorPair(Green, Black),
[CHECK_TEXT] = ColorPair(Cyan, Black),
[HOSTNAME] = ColorPair(Green, Black),
[CPU_NICE] = ColorPair(Blue, Black),
[CPU_NICE_TEXT] = A_BOLD | ColorPair(Blue, Black),
[CPU_NORMAL] = ColorPair(Green, Black),
[CPU_SYSTEM] = ColorPair(Red, Black),
[CPU_IOWAIT] = ColorPair(Yellow, Black),
[CPU_IRQ] = A_BOLD | ColorPair(Blue, Black),
[CPU_SOFTIRQ] = ColorPair(Blue, Black),
[CPU_STEAL] = ColorPair(Cyan, Black),
[CPU_GUEST] = ColorPair(Cyan, Black),
[PRESSURE_STALL_THREEHUNDRED] = ColorPair(Green, Black),
[PRESSURE_STALL_SIXTY] = ColorPair(Green, Black),
[PRESSURE_STALL_TEN] = A_BOLD | ColorPair(Green, Black),
[ZFS_MFU] = ColorPair(Blue, Black),
[ZFS_MRU] = ColorPair(Yellow, Black),
[ZFS_ANON] = ColorPair(Magenta, Black),
[ZFS_HEADER] = ColorPair(Yellow, Black),
[ZFS_OTHER] = ColorPair(Magenta, Black),
[ZFS_COMPRESSED] = ColorPair(Blue, Black),
[ZFS_RATIO] = ColorPair(Magenta, Black),
[ZRAM] = ColorPair(Yellow, Black),
},
[COLORSCHEME_BROKENGRAY] = { 0 } // dynamically generated.
};
int CRT_cursorX = 0;
int CRT_scrollHAmount = 5;
int CRT_scrollWheelVAmount = 10;
const char* CRT_termType;
int CRT_colorScheme = 0;
ATTR_NORETURN
static void CRT_handleSIGTERM(int sgn) {
(void) sgn;
CRT_done();
exit(0);
}
#ifdef HAVE_SETUID_ENABLED
static int CRT_euid = -1;
static int CRT_egid = -1;
void CRT_dropPrivileges() {
CRT_egid = getegid();
CRT_euid = geteuid();
if (setegid(getgid()) == -1) {
CRT_fatalError("Fatal error: failed dropping group privileges");
}
if (seteuid(getuid()) == -1) {
CRT_fatalError("Fatal error: failed dropping user privileges");
}
}
void CRT_restorePrivileges() {
if (CRT_egid == -1 || CRT_euid == -1) {
CRT_fatalError("Fatal error: internal inconsistency");
}
if (setegid(CRT_egid) == -1) {
CRT_fatalError("Fatal error: failed restoring group privileges");
}
if (seteuid(CRT_euid) == -1) {
CRT_fatalError("Fatal error: failed restoring user privileges");
}
}
#endif /* HAVE_SETUID_ENABLED */
static struct sigaction old_sig_handler[32];
// TODO: pass an instance of Settings instead.
void CRT_init(const int* delay, int colorScheme, bool allowUnicode) {
initscr();
noecho();
CRT_delay = delay;
CRT_colors = CRT_colorSchemes[colorScheme];
CRT_colorScheme = colorScheme;
for (int i = 0; i < LAST_COLORELEMENT; i++) {
unsigned int color = CRT_colorSchemes[COLORSCHEME_DEFAULT][i];
CRT_colorSchemes[COLORSCHEME_BROKENGRAY][i] = color == (A_BOLD | ColorPairGrayBlack) ? ColorPair(White, Black) : color;
}
halfdelay(*CRT_delay);
nonl();
intrflush(stdscr, false);
keypad(stdscr, true);
mouseinterval(0);
curs_set(0);
if (has_colors()) {
start_color();
}
CRT_termType = getenv("TERM");
if (String_eq(CRT_termType, "linux")) {
CRT_scrollHAmount = 20;
} else {
CRT_scrollHAmount = 5;
}
if (String_startsWith(CRT_termType, "xterm") || String_eq(CRT_termType, "vt220")) {
define_key("\033[H", KEY_HOME);
define_key("\033[F", KEY_END);
define_key("\033[7~", KEY_HOME);
define_key("\033[8~", KEY_END);
define_key("\033OP", KEY_F(1));
define_key("\033OQ", KEY_F(2));
define_key("\033OR", KEY_F(3));
define_key("\033OS", KEY_F(4));
define_key("\033[11~", KEY_F(1));
define_key("\033[12~", KEY_F(2));
define_key("\033[13~", KEY_F(3));
define_key("\033[14~", KEY_F(4));
define_key("\033[17;2~", KEY_F(18));
char sequence[3] = "\033a";
for (char c = 'a'; c <= 'z'; c++) {
sequence[1] = c;
define_key(sequence, KEY_ALT('A' + (c - 'a')));
}
}
struct sigaction act;
sigemptyset (&act.sa_mask);
act.sa_flags = (int)SA_RESETHAND | SA_NODEFER;
act.sa_handler = CRT_handleSIGSEGV;
sigaction (SIGSEGV, &act, &old_sig_handler[SIGSEGV]);
sigaction (SIGFPE, &act, &old_sig_handler[SIGFPE]);
sigaction (SIGILL, &act, &old_sig_handler[SIGILL]);
sigaction (SIGBUS, &act, &old_sig_handler[SIGBUS]);
sigaction (SIGPIPE, &act, &old_sig_handler[SIGPIPE]);
sigaction (SIGSYS, &act, &old_sig_handler[SIGSYS]);
sigaction (SIGABRT, &act, &old_sig_handler[SIGABRT]);
signal(SIGTERM, CRT_handleSIGTERM);
signal(SIGQUIT, CRT_handleSIGTERM);
use_default_colors();
if (!has_colors())
CRT_colorScheme = COLORSCHEME_MONOCHROME;
CRT_setColors(CRT_colorScheme);
#ifdef HAVE_LIBNCURSESW
if (allowUnicode && String_eq(nl_langinfo(CODESET), "UTF-8")) {
CRT_utf8 = true;
} else {
CRT_utf8 = false;
}
#else
(void) allowUnicode;
#endif
CRT_treeStr =
#ifdef HAVE_LIBNCURSESW
CRT_utf8 ? CRT_treeStrUtf8 :
#endif
CRT_treeStrAscii;
#if NCURSES_MOUSE_VERSION > 1
mousemask(BUTTON1_RELEASED | BUTTON4_PRESSED | BUTTON5_PRESSED, NULL);
#else
mousemask(BUTTON1_RELEASED, NULL);
#endif
CRT_degreeSign = initDegreeSign();
}
void CRT_done() {
curs_set(1);
endwin();
}
void CRT_fatalError(const char* note) {
char* sysMsg = strerror(errno);
CRT_done();
fprintf(stderr, "%s: %s\n", note, sysMsg);
exit(2);
}
int CRT_readKey() {
nocbreak();
cbreak();
nodelay(stdscr, FALSE);
int ret = getch();
halfdelay(*CRT_delay);
return ret;
}
void CRT_disableDelay() {
nocbreak();
cbreak();
nodelay(stdscr, TRUE);
}
void CRT_enableDelay() {
halfdelay(*CRT_delay);
}
void CRT_setColors(int colorScheme) {
CRT_colorScheme = colorScheme;
for (short int i = 0; i < 8; i++) {
for (short int j = 0; j < 8; j++) {
if (ColorIndex(i, j) != ColorIndexGrayBlack) {
short int bg = (colorScheme != COLORSCHEME_BLACKNIGHT)
? (j == 0 ? -1 : j)
: j;
init_pair(ColorIndex(i, j), i, bg);
}
}
}
short int grayBlackFg = COLORS > 8 ? 8 : 0;
short int grayBlackBg = (colorScheme != COLORSCHEME_BLACKNIGHT) ? -1 : 0;
init_pair(ColorIndexGrayBlack, grayBlackFg, grayBlackBg);
CRT_colors = CRT_colorSchemes[colorScheme];
}
void CRT_handleSIGSEGV(int signal) {
CRT_done();
fprintf(stderr, "\n\n"
"FATAL PROGRAM ERROR DETECTED\n"
"============================\n"
"Please check at https://htop.dev/issues whether this issue has already been reported.\n"
"If no similar issue has been reported before, please create a new issue with the following information:\n"
"\n"
"- Your htop version (htop --version)\n"
"- Your OS and kernel version (uname -a)\n"
"- Your distribution and release (lsb_release -a)\n"
"- Likely steps to reproduce (How did it happened?)\n"
#ifdef HAVE_EXECINFO_H
"- Backtrace of the issue (see below)\n"
#endif
"\n"
);
const char* signal_str = strsignal(signal);
if (!signal_str) {
signal_str = "unknown reason";
}
fprintf(stderr,
"Error information:\n"
"------------------\n"
"A signal %d (%s) was received.\n"
"\n",
signal, signal_str
);
#ifdef HAVE_EXECINFO_H
fprintf(stderr,
"Backtrace information:\n"
"----------------------\n"
"The following function calls were active when the issue was detected:\n"
"---\n"
);
void *backtraceArray[256];
size_t size = backtrace(backtraceArray, ARRAYSIZE(backtraceArray));
backtrace_symbols_fd(backtraceArray, size, 2);
fprintf(stderr,
"---\n"
"\n"
"To make the above information more practical to work with,\n"
"you should provide a disassembly of your binary.\n"
"This can usually be done by running the following command:\n"
"\n"
#ifdef HTOP_DARWIN
" otool -tvV `which htop` > ~/htop.otool\n"
#else
" objdump -d -S -w `which htop` > ~/htop.objdump\n"
#endif
"\n"
"Please include the generated file in your report.\n"
"\n"
);
#endif
fprintf(stderr,
"Running this program with debug symbols or inside a debugger may provide further insights.\n"
"\n"
"Thank you for helping to improve htop!\n"
"\n"
"htop " VERSION " aborting.\n"
"\n"
);
/* Call old sigsegv handler; may be default exit or third party one (e.g. ASAN) */
if (sigaction (signal, &old_sig_handler[signal], NULL) < 0) {
/* This avoids an infinite loop in case the handler could not be reset. */
fprintf(stderr,
"!!! Chained handler could not be restored. Forcing exit.\n"
);
_exit(1);
}
/* Trigger the previous signal handler. */
raise(signal);
// Always terminate, even if installed handler returns
fprintf(stderr,
"!!! Chained handler did not exit. Forcing exit.\n"
);
_exit(1);
}
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