htop/CRT.c

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2006-03-04 18:16:49 +00:00
/*
htop - CRT.c
2011-05-26 16:35:07 +00:00
(C) 2004-2011 Hisham H. Muhammad
Released under the GNU GPLv2, see the COPYING file
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in the source distribution for its full text.
*/
#include "config.h" // IWYU pragma: keep
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#include "CRT.h"
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#include <errno.h>
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#include <fcntl.h>
#include <langinfo.h>
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#include <signal.h>
#include <stdio.h>
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#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ProvideCurses.h"
#include "XUtils.h"
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#endif
#if !defined(NDEBUG) && defined(HAVE_MEMFD_CREATE)
#include <sys/mman.h>
#endif
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#define ColorIndex(i,j) ((7-(i))*8+(j))
#define ColorPair(i,j) COLOR_PAIR(ColorIndex(i,j))
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#define Black COLOR_BLACK
#define Red COLOR_RED
#define Green COLOR_GREEN
#define Yellow COLOR_YELLOW
#define Blue COLOR_BLUE
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#define Magenta COLOR_MAGENTA
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#define Cyan COLOR_CYAN
#define White COLOR_WHITE
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#define ColorPairGrayBlack ColorPair(Magenta,Magenta)
#define ColorIndexGrayBlack ColorIndex(Magenta,Magenta)
#define ColorPairWhiteDefault ColorPair(Red, Red)
#define ColorIndexWhiteDefault ColorIndex(Red, Red)
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static const char* const CRT_treeStrAscii[LAST_TREE_STR] = {
[TREE_STR_VERT] = "|",
[TREE_STR_RTEE] = "`",
[TREE_STR_BEND] = "`",
[TREE_STR_TEND] = ",",
[TREE_STR_OPEN] = "+",
[TREE_STR_SHUT] = "-",
[TREE_STR_ASC] = "+",
[TREE_STR_DESC] = "-",
};
#ifdef HAVE_LIBNCURSESW
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static const char* const CRT_treeStrUtf8[LAST_TREE_STR] = {
[TREE_STR_VERT] = "\xe2\x94\x82", // │
[TREE_STR_RTEE] = "\xe2\x94\x9c", // ├
[TREE_STR_BEND] = "\xe2\x94\x94", // └
[TREE_STR_TEND] = "\xe2\x94\x8c", // ┌
[TREE_STR_OPEN] = "+", // +, TODO use 🮯 'BOX DRAWINGS LIGHT HORIZONTAL
// WITH VERTICAL STROKE' (U+1FBAF, "\xf0\x9f\xae\xaf") when
// Unicode 13 is common
[TREE_STR_SHUT] = "\xe2\x94\x80", // ─
[TREE_STR_ASC] = "\xe2\x96\xb3", // △
[TREE_STR_DESC] = "\xe2\x96\xbd", // ▽
};
bool CRT_utf8 = false;
#endif
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const char* const* CRT_treeStr = CRT_treeStrAscii;
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static const Settings* CRT_crashSettings;
static const int* CRT_delay;
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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 "";
}
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const int* CRT_colors;
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static int CRT_colorSchemes[LAST_COLORSCHEME][LAST_COLORELEMENT] = {
[COLORSCHEME_DEFAULT] = {
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[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),
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[FAILED_READ] = A_BOLD | ColorPair(Red, Black),
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[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_SHADOW] = A_BOLD | ColorPairGrayBlack,
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[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),
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[METER_VALUE_NOTICE] = A_BOLD | ColorPair(White, Black),
[METER_VALUE_OK] = ColorPair(Green, Black),
[METER_VALUE_WARN] = A_BOLD | ColorPair(Yellow, Black),
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[LED_COLOR] = ColorPair(Green, Black),
[TASKS_RUNNING] = A_BOLD | ColorPair(Green, Black),
[PROCESS] = A_NORMAL,
[PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
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[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),
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[PROCESS_THREAD] = ColorPair(Green, Black),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Green, Black),
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[PROCESS_COMM] = ColorPair(Magenta, Black),
[PROCESS_THREAD_COMM] = ColorPair(Blue, Black),
[BAR_BORDER] = A_BOLD,
[BAR_SHADOW] = A_BOLD | ColorPairGrayBlack,
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[SWAP] = ColorPair(Red, Black),
[SWAP_CACHE] = ColorPair(Yellow, Black),
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[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),
[MEMORY_SHARED] = ColorPair(Magenta, Black),
[HUGEPAGE_1] = ColorPair(Green, Black),
[HUGEPAGE_2] = ColorPair(Yellow, Black),
[HUGEPAGE_3] = ColorPair(Red, Black),
[HUGEPAGE_4] = ColorPair(Blue, Black),
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[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,
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[HELP_BOLD] = A_BOLD | ColorPair(Cyan, Black),
[HELP_SHADOW] = A_BOLD | ColorPairGrayBlack,
[CLOCK] = A_BOLD,
[DATE] = A_BOLD,
[DATETIME] = A_BOLD,
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[CHECK_BOX] = ColorPair(Cyan, Black),
[CHECK_MARK] = A_BOLD,
[CHECK_TEXT] = A_NORMAL,
[HOSTNAME] = A_BOLD,
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[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,
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[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),
Add a new DynamicMeter class for runtime Meter extension This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
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[DYNAMIC_GRAY] = ColorPairGrayBlack,
[DYNAMIC_DARKGRAY] = A_BOLD | ColorPairGrayBlack,
[DYNAMIC_RED] = ColorPair(Red, Black),
[DYNAMIC_GREEN] = ColorPair(Green, Black),
[DYNAMIC_BLUE] = ColorPair(Blue, Black),
[DYNAMIC_CYAN] = ColorPair(Cyan, Black),
[DYNAMIC_MAGENTA] = ColorPair(Magenta, Black),
[DYNAMIC_YELLOW] = ColorPair(Yellow, Black),
[DYNAMIC_WHITE] = ColorPair(White, 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,
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[FAILED_READ] = A_BOLD,
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[PAUSED] = A_BOLD | A_REVERSE,
[UPTIME] = A_BOLD,
[BATTERY] = A_BOLD,
[LARGE_NUMBER] = A_BOLD,
[METER_SHADOW] = A_DIM,
[METER_TEXT] = A_NORMAL,
[METER_VALUE] = A_BOLD,
[METER_VALUE_ERROR] = A_BOLD,
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[METER_VALUE_IOREAD] = A_NORMAL,
[METER_VALUE_IOWRITE] = A_NORMAL,
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[METER_VALUE_NOTICE] = A_BOLD,
[METER_VALUE_OK] = A_NORMAL,
[METER_VALUE_WARN] = A_BOLD,
[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,
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[PROCESS_NEW] = A_BOLD,
[PROCESS_TOMB] = A_DIM,
[PROCESS_THREAD] = A_BOLD,
[PROCESS_THREAD_BASENAME] = A_REVERSE,
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[PROCESS_COMM] = A_BOLD,
[PROCESS_THREAD_COMM] = A_REVERSE,
[BAR_BORDER] = A_BOLD,
[BAR_SHADOW] = A_DIM,
[SWAP] = A_BOLD,
[SWAP_CACHE] = A_NORMAL,
[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,
[MEMORY_SHARED] = A_NORMAL,
[HUGEPAGE_1] = A_BOLD,
[HUGEPAGE_2] = A_NORMAL,
[HUGEPAGE_3] = A_REVERSE | A_BOLD,
[HUGEPAGE_4] = A_REVERSE,
[LOAD_AVERAGE_FIFTEEN] = A_DIM,
[LOAD_AVERAGE_FIVE] = A_NORMAL,
[LOAD_AVERAGE_ONE] = A_BOLD,
[LOAD] = A_BOLD,
[HELP_BOLD] = A_BOLD,
[HELP_SHADOW] = A_DIM,
[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,
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[CPU_SYSTEM] = A_BOLD,
[CPU_IOWAIT] = A_NORMAL,
[CPU_IRQ] = A_BOLD,
[CPU_SOFTIRQ] = A_BOLD,
[CPU_STEAL] = A_DIM,
[CPU_GUEST] = A_DIM,
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[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,
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[ZRAM] = A_NORMAL,
Add a new DynamicMeter class for runtime Meter extension This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
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[DYNAMIC_GRAY] = A_DIM,
[DYNAMIC_DARKGRAY] = A_DIM,
[DYNAMIC_RED] = A_BOLD,
[DYNAMIC_GREEN] = A_NORMAL,
[DYNAMIC_BLUE] = A_NORMAL,
[DYNAMIC_CYAN] = A_BOLD,
[DYNAMIC_MAGENTA] = A_NORMAL,
[DYNAMIC_YELLOW] = A_NORMAL,
[DYNAMIC_WHITE] = A_BOLD,
},
[COLORSCHEME_BLACKONWHITE] = {
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[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),
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[FAILED_READ] = ColorPair(Red, White),
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[PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
[UPTIME] = ColorPair(Yellow, White),
[BATTERY] = ColorPair(Yellow, White),
[LARGE_NUMBER] = ColorPair(Red, White),
[METER_SHADOW] = ColorPair(Blue, White),
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[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),
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[METER_VALUE_NOTICE] = A_BOLD | ColorPair(Yellow, White),
[METER_VALUE_OK] = ColorPair(Green, White),
[METER_VALUE_WARN] = A_BOLD | ColorPair(Yellow, White),
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[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),
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[PROCESS_THREAD] = ColorPair(Blue, White),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, White),
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[PROCESS_COMM] = ColorPair(Magenta, White),
[PROCESS_THREAD_COMM] = ColorPair(Green, White),
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[BAR_BORDER] = ColorPair(Blue, White),
[BAR_SHADOW] = ColorPair(Black, White),
[SWAP] = ColorPair(Red, White),
[SWAP_CACHE] = ColorPair(Yellow, White),
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[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),
[MEMORY_SHARED] = ColorPair(Magenta, White),
[HUGEPAGE_1] = ColorPair(Green, White),
[HUGEPAGE_2] = ColorPair(Yellow, White),
[HUGEPAGE_3] = ColorPair(Red, White),
[HUGEPAGE_4] = ColorPair(Blue, White),
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[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),
[HELP_SHADOW] = A_BOLD | ColorPair(Black, White),
2020-10-31 22:28:02 +00:00
[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),
Add a new DynamicMeter class for runtime Meter extension This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
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[ZRAM] = ColorPair(Yellow, White),
[DYNAMIC_GRAY] = ColorPair(Black, White),
[DYNAMIC_DARKGRAY] = A_BOLD | ColorPair(Black, White),
[DYNAMIC_RED] = ColorPair(Red, White),
[DYNAMIC_GREEN] = ColorPair(Green, White),
[DYNAMIC_BLUE] = ColorPair(Blue, White),
[DYNAMIC_CYAN] = ColorPair(Yellow, White),
[DYNAMIC_MAGENTA] = ColorPair(Magenta, White),
[DYNAMIC_YELLOW] = ColorPair(Yellow, White),
[DYNAMIC_WHITE] = A_BOLD | ColorPair(Black, White),
},
[COLORSCHEME_LIGHTTERMINAL] = {
[RESET_COLOR] = ColorPair(Black, Black),
[DEFAULT_COLOR] = ColorPair(Black, Black),
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[FUNCTION_BAR] = ColorPair(Black, Cyan),
[FUNCTION_KEY] = ColorPair(Black, Black),
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[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),
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[FAILED_READ] = ColorPair(Red, Black),
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[PAUSED] = A_BOLD | ColorPair(Yellow, Cyan),
[UPTIME] = ColorPair(Yellow, Black),
[BATTERY] = ColorPair(Yellow, Black),
[LARGE_NUMBER] = ColorPair(Red, Black),
[METER_SHADOW] = A_BOLD | ColorPairGrayBlack,
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[METER_TEXT] = ColorPair(Blue, Black),
[METER_VALUE] = ColorPair(Black, Black),
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[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 | ColorPairWhiteDefault,
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[METER_VALUE_OK] = ColorPair(Green, Black),
[METER_VALUE_WARN] = A_BOLD | ColorPair(Yellow, Black),
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[LED_COLOR] = ColorPair(Green, Black),
[TASKS_RUNNING] = ColorPair(Green, Black),
[PROCESS] = ColorPair(Black, Black),
[PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
[PROCESS_TAG] = ColorPair(White, Blue),
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[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),
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[PROCESS_THREAD] = ColorPair(Blue, Black),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Blue, Black),
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[PROCESS_COMM] = ColorPair(Magenta, Black),
[PROCESS_THREAD_COMM] = ColorPair(Yellow, Black),
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[BAR_BORDER] = ColorPair(Blue, Black),
[BAR_SHADOW] = ColorPairGrayBlack,
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[SWAP] = ColorPair(Red, Black),
[SWAP_CACHE] = ColorPair(Yellow, Black),
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[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),
[MEMORY_SHARED] = ColorPair(Magenta, Black),
[HUGEPAGE_1] = ColorPair(Green, Black),
[HUGEPAGE_2] = ColorPair(Yellow, Black),
[HUGEPAGE_3] = ColorPair(Red, Black),
[HUGEPAGE_4] = ColorPair(Blue, Black),
[LOAD_AVERAGE_FIFTEEN] = ColorPair(Black, Black),
[LOAD_AVERAGE_FIVE] = ColorPair(Black, Black),
[LOAD_AVERAGE_ONE] = ColorPair(Black, Black),
[LOAD] = ColorPairWhiteDefault,
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[HELP_BOLD] = ColorPair(Blue, Black),
[HELP_SHADOW] = A_BOLD | ColorPairGrayBlack,
[CLOCK] = ColorPairWhiteDefault,
[DATE] = ColorPairWhiteDefault,
[DATETIME] = ColorPairWhiteDefault,
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[CHECK_BOX] = ColorPair(Blue, Black),
[CHECK_MARK] = ColorPair(Black, Black),
[CHECK_TEXT] = ColorPair(Black, Black),
[HOSTNAME] = ColorPairWhiteDefault,
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[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(Black, Black),
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[CPU_IRQ] = A_BOLD | ColorPair(Blue, Black),
[CPU_SOFTIRQ] = ColorPair(Blue, Black),
[CPU_STEAL] = ColorPair(Black, Black),
[CPU_GUEST] = ColorPair(Black, Black),
[PRESSURE_STALL_THREEHUNDRED] = ColorPair(Black, Black),
[PRESSURE_STALL_SIXTY] = ColorPair(Black, Black),
[PRESSURE_STALL_TEN] = ColorPair(Black, Black),
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[ZFS_MFU] = ColorPair(Cyan, Black),
[ZFS_MRU] = ColorPair(Yellow, Black),
[ZFS_ANON] = A_BOLD | ColorPair(Magenta, Black),
[ZFS_HEADER] = ColorPair(Black, Black),
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[ZFS_OTHER] = A_BOLD | ColorPair(Magenta, Black),
[ZFS_COMPRESSED] = ColorPair(Cyan, Black),
[ZFS_RATIO] = A_BOLD | ColorPair(Magenta, Black),
[ZRAM] = ColorPair(Yellow, Black),
Add a new DynamicMeter class for runtime Meter extension This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
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[DYNAMIC_GRAY] = ColorPairGrayBlack,
[DYNAMIC_DARKGRAY] = A_BOLD | ColorPairGrayBlack,
[DYNAMIC_RED] = ColorPair(Red, Black),
[DYNAMIC_GREEN] = ColorPair(Green, Black),
[DYNAMIC_BLUE] = ColorPair(Blue, Black),
[DYNAMIC_CYAN] = ColorPair(Cyan, Black),
[DYNAMIC_MAGENTA] = ColorPair(Magenta, Black),
[DYNAMIC_YELLOW] = ColorPair(Yellow, Black),
[DYNAMIC_WHITE] = ColorPairWhiteDefault,
},
[COLORSCHEME_MIDNIGHT] = {
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[RESET_COLOR] = ColorPair(White, Blue),
[DEFAULT_COLOR] = ColorPair(White, Blue),
[FUNCTION_BAR] = ColorPair(Black, Cyan),
[FUNCTION_KEY] = A_NORMAL,
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[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),
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[FAILED_READ] = A_BOLD | ColorPair(Red, Blue),
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[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_SHADOW] = ColorPair(Cyan, Blue),
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[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),
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[METER_VALUE_NOTICE] = A_BOLD | ColorPair(White, Blue),
[METER_VALUE_OK] = ColorPair(Green, Blue),
[METER_VALUE_WARN] = A_BOLD | ColorPair(Yellow, Black),
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[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),
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[PROCESS_THREAD] = ColorPair(Green, Blue),
[PROCESS_THREAD_BASENAME] = A_BOLD | ColorPair(Green, Blue),
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[PROCESS_COMM] = ColorPair(Magenta, Blue),
[PROCESS_THREAD_COMM] = ColorPair(Black, Blue),
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[BAR_BORDER] = A_BOLD | ColorPair(Yellow, Blue),
[BAR_SHADOW] = ColorPair(Cyan, Blue),
[SWAP] = ColorPair(Red, Blue),
[SWAP_CACHE] = A_BOLD | ColorPair(Yellow, Blue),
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[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),
[MEMORY_SHARED] = A_BOLD | ColorPair(Magenta, Blue),
[HUGEPAGE_1] = A_BOLD | ColorPair(Green, Blue),
[HUGEPAGE_2] = A_BOLD | ColorPair(Yellow, Blue),
[HUGEPAGE_3] = A_BOLD | ColorPair(Red, Blue),
[HUGEPAGE_4] = A_BOLD | ColorPair(White, Blue),
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[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),
[HELP_SHADOW] = A_BOLD | ColorPair(Black, Blue),
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[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),
Add a new DynamicMeter class for runtime Meter extension This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
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[DYNAMIC_GRAY] = ColorPairGrayBlack,
[DYNAMIC_DARKGRAY] = A_BOLD | ColorPairGrayBlack,
[DYNAMIC_RED] = ColorPair(Red, Blue),
[DYNAMIC_GREEN] = ColorPair(Green, Blue),
[DYNAMIC_BLUE] = ColorPair(Black, Blue),
[DYNAMIC_CYAN] = ColorPair(Cyan, Blue),
[DYNAMIC_MAGENTA] = ColorPair(Magenta, Blue),
[DYNAMIC_YELLOW] = ColorPair(Yellow, Blue),
[DYNAMIC_WHITE] = ColorPair(White, Blue),
},
[COLORSCHEME_BLACKNIGHT] = {
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[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),
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[FAILED_READ] = A_BOLD | ColorPair(Red, Black),
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[PAUSED] = A_BOLD | ColorPair(Yellow, Green),
[UPTIME] = ColorPair(Green, Black),
[BATTERY] = ColorPair(Green, Black),
[LARGE_NUMBER] = A_BOLD | ColorPair(Red, Black),
[METER_SHADOW] = A_BOLD | ColorPairGrayBlack,
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[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(White, Black),
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[METER_VALUE_OK] = ColorPair(Green, Black),
[METER_VALUE_WARN] = A_BOLD | ColorPair(Yellow, Black),
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[LED_COLOR] = ColorPair(Green, Black),
[TASKS_RUNNING] = A_BOLD | ColorPair(Green, Black),
[PROCESS] = ColorPair(Cyan, Black),
[PROCESS_SHADOW] = A_BOLD | ColorPairGrayBlack,
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[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),
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[PROCESS_COMM] = ColorPair(Magenta, Black),
[PROCESS_THREAD_COMM] = ColorPair(Yellow, Black),
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[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),
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[BAR_BORDER] = A_BOLD | ColorPair(Green, Black),
[BAR_SHADOW] = ColorPair(Cyan, Black),
[SWAP] = ColorPair(Red, Black),
[SWAP_CACHE] = ColorPair(Yellow, Black),
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[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),
[MEMORY_SHARED] = ColorPair(Magenta, Black),
[HUGEPAGE_1] = ColorPair(Green, Black),
[HUGEPAGE_2] = ColorPair(Yellow, Black),
[HUGEPAGE_3] = ColorPair(Red, Black),
[HUGEPAGE_4] = ColorPair(Blue, Black),
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[LOAD_AVERAGE_FIFTEEN] = ColorPair(Green, Black),
[LOAD_AVERAGE_FIVE] = ColorPair(Green, Black),
[LOAD_AVERAGE_ONE] = A_BOLD | ColorPair(Green, Black),
[LOAD] = A_BOLD,
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[HELP_BOLD] = A_BOLD | ColorPair(Cyan, Black),
[HELP_SHADOW] = A_BOLD | ColorPairGrayBlack,
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[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),
Add a new DynamicMeter class for runtime Meter extension This commit is based on exploratory work by Sohaib Mohamed. The end goal is two-fold - to support addition of Meters we build via configuration files for both the PCP platform and for scripts ( https://github.com/htop-dev/htop/issues/526 ) Here, we focus on generic code and the PCP support. A new class DynamicMeter is introduced - it uses the special case 'param' field handling that previously was used only by the CPUMeter, such that every runtime-configured Meter is given a unique identifier. Unlike with the CPUMeter this is used internally only. When reading/writing to htoprc instead of CPU(N) - where N is an integer param (CPU number) - we use the string name for each meter. For example, if we have a configuration for a DynamicMeter for some Redis metrics, we might read and write "Dynamic(redis)". This identifier is subsequently matched (back) up to the configuration file so we're able to re-create arbitrary user configurations. The PCP platform configuration file format is fairly simple. We expand configs from several directories, including the users homedir alongside htoprc (below htop/meters/) and also /etc/pcp/htop/meters. The format will be described via a new pcp-htop(5) man page, but its basically ini-style and each Meter has one or more metric expressions associated, as well as specifications for labels, color and so on via a dot separated notation for individual metrics within the Meter. A few initial sample configuration files are provided below ./pcp/meters that give the general idea. The PCP "derived" metric specification - see pmRegisterDerived(3) - is used as the syntax for specifying metrics in PCP DynamicMeters.
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[DYNAMIC_GRAY] = ColorPairGrayBlack,
[DYNAMIC_DARKGRAY] = A_BOLD | ColorPairGrayBlack,
[DYNAMIC_RED] = ColorPair(Red, Black),
[DYNAMIC_GREEN] = ColorPair(Green, Black),
[DYNAMIC_BLUE] = ColorPair(Blue, Black),
[DYNAMIC_CYAN] = ColorPair(Cyan, Black),
[DYNAMIC_MAGENTA] = ColorPair(Magenta, Black),
[DYNAMIC_YELLOW] = ColorPair(Yellow, Black),
[DYNAMIC_WHITE] = ColorPair(White, Black),
},
[COLORSCHEME_BROKENGRAY] = { 0 } // dynamically generated.
};
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int CRT_cursorX = 0;
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int CRT_scrollHAmount = 5;
int CRT_scrollWheelVAmount = 10;
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ColorScheme CRT_colorScheme = COLORSCHEME_DEFAULT;
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ATTR_NORETURN
static void CRT_handleSIGTERM(ATTR_UNUSED int sgn) {
CRT_done();
_exit(0);
}
#ifndef NDEBUG
static int stderrRedirectNewFd = -1;
static int stderrRedirectBackupFd = -1;
static int createStderrCacheFile(void) {
#if defined(HAVE_MEMFD_CREATE)
return memfd_create("htop.stderr-redirect", 0);
#elif defined(O_TMPFILE)
return open("/tmp", O_TMPFILE | O_CREAT | O_EXCL | O_RDWR, S_IRUSR | S_IWUSR);
#else
char tmpName[] = "htop.stderr-redirectXXXXXX";
mode_t curUmask = umask(S_IXUSR | S_IRWXG | S_IRWXO);
int r = mkstemp(tmpName);
umask(curUmask);
if (r < 0)
return r;
(void) unlink(tmpName);
return r;
#endif /* HAVE_MEMFD_CREATE */
}
static void redirectStderr(void) {
stderrRedirectNewFd = createStderrCacheFile();
if (stderrRedirectNewFd < 0) {
/* ignore failure */
return;
}
stderrRedirectBackupFd = dup(STDERR_FILENO);
dup2(stderrRedirectNewFd, STDERR_FILENO);
}
static void dumpStderr(void) {
if (stderrRedirectNewFd < 0)
return;
fsync(STDERR_FILENO);
dup2(stderrRedirectBackupFd, STDERR_FILENO);
lseek(stderrRedirectNewFd, 0, SEEK_SET);
bool header = false;
char buffer[8192];
for (;;) {
errno = 0;
ssize_t res = read(stderrRedirectNewFd, buffer, sizeof(buffer));
if (res < 0) {
if (errno == EINTR)
continue;
break;
}
if (res == 0) {
break;
}
if (res > 0) {
if (!header) {
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fprintf(stderr, ">>>>>>>>>> stderr output >>>>>>>>>>\n");
header = true;
}
(void)! write(STDERR_FILENO, buffer, res);
}
}
if (header)
fprintf(stderr, "\n<<<<<<<<<< stderr output <<<<<<<<<<\n");
close(stderrRedirectNewFd);
stderrRedirectNewFd = -1;
}
#else /* !NDEBUG */
static void redirectStderr(void) {
}
static void dumpStderr(void) {
}
#endif /* !NDEBUG */
static struct sigaction old_sig_handler[32];
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Reset the signal handlers at program exit The signal handler will access the Settings struct, which gets freed at normal program finalization. When using leak sanitizers with ASAN_OPTIONS=abort_on_error=1, which runs after program termination, any leak causes SIGABRT to be raised, calling the crash handler, which will derefernce the freed Settings. ==44741==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d000000080 at pc 0x0000005680df bp 0x7fffe335e960 sp 0x7fffe335e958 READ of size 8 at 0x60d000000080 thread T0 #0 0x5680de in Settings_write /home/christian/Coding/workspaces/htop/Settings.c:329:26 #1 0x4f77b7 in CRT_handleSIGSEGV /home/christian/Coding/workspaces/htop/CRT.c:1020:4 #2 0x7f8a1120c13f (/lib/x86_64-linux-gnu/libpthread.so.0+0x1413f) #3 0x7f8a11042ce0 in __libc_signal_restore_set signal/../sysdeps/unix/sysv/linux/internal-signals.h:86:3 #4 0x7f8a11042ce0 in raise signal/../sysdeps/unix/sysv/linux/raise.c:48:3 #5 0x7f8a1102c536 in abort stdlib/abort.c:79:7 #6 0x4c3db6 in __sanitizer::Abort() (/home/christian/Coding/workspaces/htop/htop+0x4c3db6) #7 0x4c2090 in __sanitizer::Die() (/home/christian/Coding/workspaces/htop/htop+0x4c2090) #8 0x4d0a17 in __lsan::HandleLeaks() (/home/christian/Coding/workspaces/htop/htop+0x4d0a17) #9 0x4cd950 in __lsan::DoLeakCheck() (/home/christian/Coding/workspaces/htop/htop+0x4cd950) #10 0x7f8a110454d6 in __run_exit_handlers stdlib/exit.c:108:8 #11 0x7f8a11045679 in exit stdlib/exit.c:139:3 #12 0x7f8a1102dd10 in __libc_start_main csu/../csu/libc-start.c:342:3 #13 0x428a19 in _start (/home/christian/Coding/workspaces/htop/htop+0x428a19) 0x60d000000080 is located 64 bytes inside of 144-byte region [0x60d000000040,0x60d0000000d0) freed by thread T0 here: #0 0x4a4f72 in free (/home/christian/Coding/workspaces/htop/htop+0x4a4f72) #1 0x566693 in Settings_delete /home/christian/Coding/workspaces/htop/Settings.c:32:4 #2 0x4ede10 in CommandLine_run /home/christian/Coding/workspaces/htop/CommandLine.c:393:4 #3 0x4d6f32 in main /home/christian/Coding/workspaces/htop/htop.c:15:11 #4 0x7f8a1102dd09 in __libc_start_main csu/../csu/libc-start.c:308:16 previously allocated by thread T0 here: #0 0x4a5372 in __interceptor_calloc (/home/christian/Coding/workspaces/htop/htop+0x4a5372) #1 0x57f61a in xCalloc /home/christian/Coding/workspaces/htop/XUtils.c:55:17 #2 0x5688a6 in Settings_new /home/christian/Coding/workspaces/htop/Settings.c:392:21 #3 0x4ecb57 in CommandLine_run /home/christian/Coding/workspaces/htop/CommandLine.c:303:25 #4 0x4d6f32 in main /home/christian/Coding/workspaces/htop/htop.c:15:11 #5 0x7f8a1102dd09 in __libc_start_main csu/../csu/libc-start.c:308:16 SUMMARY: AddressSanitizer: heap-use-after-free /home/christian/Coding/workspaces/htop/Settings.c:329:26 in Settings_write
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static void CRT_installSignalHandlers(void) {
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(SIGINT, CRT_handleSIGTERM);
signal(SIGTERM, CRT_handleSIGTERM);
signal(SIGQUIT, CRT_handleSIGTERM);
}
void CRT_resetSignalHandlers(void) {
sigaction (SIGSEGV, &old_sig_handler[SIGSEGV], NULL);
sigaction (SIGFPE, &old_sig_handler[SIGFPE], NULL);
sigaction (SIGILL, &old_sig_handler[SIGILL], NULL);
sigaction (SIGBUS, &old_sig_handler[SIGBUS], NULL);
sigaction (SIGPIPE, &old_sig_handler[SIGPIPE], NULL);
sigaction (SIGSYS, &old_sig_handler[SIGSYS], NULL);
sigaction (SIGABRT, &old_sig_handler[SIGABRT], NULL);
signal(SIGINT, SIG_DFL);
signal(SIGTERM, SIG_DFL);
signal(SIGQUIT, SIG_DFL);
}
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void CRT_init(const Settings* settings, bool allowUnicode) {
redirectStderr();
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initscr();
noecho();
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CRT_crashSettings = settings;
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CRT_delay = &(settings->delay);
CRT_colors = CRT_colorSchemes[settings->colorScheme];
CRT_colorScheme = settings->colorScheme;
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for (int i = 0; i < LAST_COLORELEMENT; i++) {
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unsigned int color = CRT_colorSchemes[COLORSCHEME_DEFAULT][i];
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CRT_colorSchemes[COLORSCHEME_BROKENGRAY][i] = color == (A_BOLD | ColorPairGrayBlack) ? ColorPair(White, Black) : color;
}
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halfdelay(*CRT_delay);
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nonl();
intrflush(stdscr, false);
keypad(stdscr, true);
#ifdef HAVE_GETMOUSE
mouseinterval(0);
#endif
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curs_set(0);
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if (has_colors()) {
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start_color();
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}
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const char* termType = getenv("TERM");
if (termType && String_eq(termType, "linux")) {
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CRT_scrollHAmount = 20;
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} else {
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CRT_scrollHAmount = 5;
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}
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if (termType && (String_startsWith(termType, "xterm") || String_eq(termType, "vt220"))) {
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define_key("\033[H", KEY_HOME);
define_key("\033[F", KEY_END);
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define_key("\033[7~", KEY_HOME);
define_key("\033[8~", KEY_END);
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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("\033O2R", KEY_F(15));
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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[14;2~", KEY_F(15));
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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')));
}
2006-03-04 18:16:49 +00:00
}
Reset the signal handlers at program exit The signal handler will access the Settings struct, which gets freed at normal program finalization. When using leak sanitizers with ASAN_OPTIONS=abort_on_error=1, which runs after program termination, any leak causes SIGABRT to be raised, calling the crash handler, which will derefernce the freed Settings. ==44741==ERROR: AddressSanitizer: heap-use-after-free on address 0x60d000000080 at pc 0x0000005680df bp 0x7fffe335e960 sp 0x7fffe335e958 READ of size 8 at 0x60d000000080 thread T0 #0 0x5680de in Settings_write /home/christian/Coding/workspaces/htop/Settings.c:329:26 #1 0x4f77b7 in CRT_handleSIGSEGV /home/christian/Coding/workspaces/htop/CRT.c:1020:4 #2 0x7f8a1120c13f (/lib/x86_64-linux-gnu/libpthread.so.0+0x1413f) #3 0x7f8a11042ce0 in __libc_signal_restore_set signal/../sysdeps/unix/sysv/linux/internal-signals.h:86:3 #4 0x7f8a11042ce0 in raise signal/../sysdeps/unix/sysv/linux/raise.c:48:3 #5 0x7f8a1102c536 in abort stdlib/abort.c:79:7 #6 0x4c3db6 in __sanitizer::Abort() (/home/christian/Coding/workspaces/htop/htop+0x4c3db6) #7 0x4c2090 in __sanitizer::Die() (/home/christian/Coding/workspaces/htop/htop+0x4c2090) #8 0x4d0a17 in __lsan::HandleLeaks() (/home/christian/Coding/workspaces/htop/htop+0x4d0a17) #9 0x4cd950 in __lsan::DoLeakCheck() (/home/christian/Coding/workspaces/htop/htop+0x4cd950) #10 0x7f8a110454d6 in __run_exit_handlers stdlib/exit.c:108:8 #11 0x7f8a11045679 in exit stdlib/exit.c:139:3 #12 0x7f8a1102dd10 in __libc_start_main csu/../csu/libc-start.c:342:3 #13 0x428a19 in _start (/home/christian/Coding/workspaces/htop/htop+0x428a19) 0x60d000000080 is located 64 bytes inside of 144-byte region [0x60d000000040,0x60d0000000d0) freed by thread T0 here: #0 0x4a4f72 in free (/home/christian/Coding/workspaces/htop/htop+0x4a4f72) #1 0x566693 in Settings_delete /home/christian/Coding/workspaces/htop/Settings.c:32:4 #2 0x4ede10 in CommandLine_run /home/christian/Coding/workspaces/htop/CommandLine.c:393:4 #3 0x4d6f32 in main /home/christian/Coding/workspaces/htop/htop.c:15:11 #4 0x7f8a1102dd09 in __libc_start_main csu/../csu/libc-start.c:308:16 previously allocated by thread T0 here: #0 0x4a5372 in __interceptor_calloc (/home/christian/Coding/workspaces/htop/htop+0x4a5372) #1 0x57f61a in xCalloc /home/christian/Coding/workspaces/htop/XUtils.c:55:17 #2 0x5688a6 in Settings_new /home/christian/Coding/workspaces/htop/Settings.c:392:21 #3 0x4ecb57 in CommandLine_run /home/christian/Coding/workspaces/htop/CommandLine.c:303:25 #4 0x4d6f32 in main /home/christian/Coding/workspaces/htop/htop.c:15:11 #5 0x7f8a1102dd09 in __libc_start_main csu/../csu/libc-start.c:308:16 SUMMARY: AddressSanitizer: heap-use-after-free /home/christian/Coding/workspaces/htop/Settings.c:329:26 in Settings_write
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CRT_installSignalHandlers();
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use_default_colors();
if (!has_colors())
CRT_colorScheme = COLORSCHEME_MONOCHROME;
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CRT_setColors(CRT_colorScheme);
#ifdef HAVE_LIBNCURSESW
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if (allowUnicode && String_eq(nl_langinfo(CODESET), "UTF-8")) {
CRT_utf8 = true;
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} else {
CRT_utf8 = false;
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}
#else
(void) allowUnicode;
#endif
CRT_treeStr =
#ifdef HAVE_LIBNCURSESW
CRT_utf8 ? CRT_treeStrUtf8 :
#endif
CRT_treeStrAscii;
#ifdef HAVE_GETMOUSE
#if NCURSES_MOUSE_VERSION > 1
mousemask(BUTTON1_RELEASED | BUTTON4_PRESSED | BUTTON5_PRESSED, NULL);
#else
mousemask(BUTTON1_RELEASED, NULL);
#endif
#endif
CRT_degreeSign = initDegreeSign();
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}
void CRT_done() {
curs_set(1);
endwin();
dumpStderr();
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}
void CRT_fatalError(const char* note) {
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const char* sysMsg = strerror(errno);
CRT_done();
fprintf(stderr, "%s: %s\n", note, sysMsg);
exit(2);
}
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int CRT_readKey() {
nocbreak();
cbreak();
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nodelay(stdscr, FALSE);
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int ret = getch();
halfdelay(*CRT_delay);
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return ret;
}
void CRT_disableDelay() {
nocbreak();
cbreak();
nodelay(stdscr, TRUE);
}
void CRT_enableDelay() {
halfdelay(*CRT_delay);
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}
void CRT_setColors(int colorScheme) {
CRT_colorScheme = colorScheme;
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for (short int i = 0; i < 8; i++) {
for (short int j = 0; j < 8; j++) {
if (ColorIndex(i, j) != ColorIndexGrayBlack && ColorIndex(i, j) != ColorIndexWhiteDefault) {
2020-11-24 16:42:52 +00:00
short int bg = (colorScheme != COLORSCHEME_BLACKNIGHT)
2020-10-31 22:28:02 +00:00
? (j == 0 ? -1 : j)
: j;
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init_pair(ColorIndex(i, j), i, bg);
}
}
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}
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short int grayBlackFg = COLORS > 8 ? 8 : 0;
short int grayBlackBg = (colorScheme != COLORSCHEME_BLACKNIGHT) ? -1 : 0;
init_pair(ColorIndexGrayBlack, grayBlackFg, grayBlackBg);
init_pair(ColorIndexWhiteDefault, White, -1);
CRT_colors = CRT_colorSchemes[colorScheme];
2006-03-04 18:16:49 +00:00
}
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"
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" - Your "PACKAGE" version: '"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 happen?)\n"
);
#ifdef HAVE_EXECINFO_H
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fprintf(stderr, " - Backtrace of the issue (see below)\n");
#endif
fprintf(stderr,
"\n"
);
const char* signal_str = strsignal(signal);
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if (!signal_str) {
signal_str = "unknown reason";
}
fprintf(stderr,
"Error information:\n"
"------------------\n"
"A signal %d (%s) was received.\n"
"\n",
signal, signal_str
);
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fprintf(stderr,
"Setting information:\n"
"--------------------\n");
Settings_write(CRT_crashSettings, true);
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fprintf(stderr, "\n\n");
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#ifdef HAVE_EXECINFO_H
fprintf(stderr,
"Backtrace information:\n"
"----------------------\n"
);
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void* backtraceArray[256];
size_t size = backtrace(backtraceArray, ARRAYSIZE(backtraceArray));
backtrace_symbols_fd(backtraceArray, size, STDERR_FILENO);
fprintf(stderr,
"\n"
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"To make the above information more practical to work with, "
"please also provide a disassembly of your "PACKAGE" binary. "
"This can usually be done by running the following command:\n"
"\n"
);
#ifdef HTOP_DARWIN
fprintf(stderr, " otool -tvV `which "PACKAGE"` > ~/htop.otool\n");
#else
fprintf(stderr, " objdump -d -S -w `which "PACKAGE"` > ~/htop.objdump\n");
#endif
fprintf(stderr,
"\n"
"Please include the generated file in your report.\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 "PACKAGE"!\n"
"\n"
);
/* Call old sigsegv handler; may be default exit or third party one (e.g. ASAN) */
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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);
}