Adding upstream version 3.3.0.upstream/3.3.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 446 insertions, 0 deletions

diff --git a/linux/LinuxProcess.c b/linux/LinuxProcess.c
new file mode 100644
index 0000000..dc4f259
--- /dev/null
+++ b/linux/LinuxProcess.c
@@ -0,0 +1,446 @@
+/*
+htop - LinuxProcess.c
+(C) 2014 Hisham H. Muhammad
+(C) 2020 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2+, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "linux/LinuxProcess.h"
+
+#include <assert.h>
+#include <math.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <syscall.h>
+#include <unistd.h>
+
+#include "CRT.h"
+#include "Macros.h"
+#include "Process.h"
+#include "ProvideCurses.h"
+#include "RichString.h"
+#include "RowField.h"
+#include "Scheduling.h"
+#include "Settings.h"
+#include "XUtils.h"
+#include "linux/IOPriority.h"
+#include "linux/LinuxMachine.h"
+
+
+const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
+   [0] = { .name = "", .title = NULL, .description = NULL, .flags = 0, },
+   [PID] = { .name = "PID", .title = "PID", .description = "Process/thread ID", .flags = 0, .pidColumn = true, },
+   [COMM] = { .name = "Command", .title = "Command ", .description = "Command line", .flags = 0, },
+   [STATE] = { .name = "STATE", .title = "S ", .description = "Process state (S sleeping, R running, D disk, Z zombie, T traced, W paging, I idle)", .flags = 0, },
+   [PPID] = { .name = "PPID", .title = "PPID", .description = "Parent process ID", .flags = 0, .pidColumn = true, },
+   [PGRP] = { .name = "PGRP", .title = "PGRP", .description = "Process group ID", .flags = 0, .pidColumn = true, },
+   [SESSION] = { .name = "SESSION", .title = "SID", .description = "Process's session ID", .flags = 0, .pidColumn = true, },
+   [TTY] = { .name = "TTY", .title = "TTY      ", .description = "Controlling terminal", .flags = 0, },
+   [TPGID] = { .name = "TPGID", .title = "TPGID", .description = "Process ID of the fg process group of the controlling terminal", .flags = 0, .pidColumn = true, },
+   [MINFLT] = { .name = "MINFLT", .title = "     MINFLT ", .description = "Number of minor faults which have not required loading a memory page from disk", .flags = 0, .defaultSortDesc = true, },
+   [CMINFLT] = { .name = "CMINFLT", .title = "    CMINFLT ", .description = "Children processes' minor faults", .flags = 0, .defaultSortDesc = true, },
+   [MAJFLT] = { .name = "MAJFLT", .title = "     MAJFLT ", .description = "Number of major faults which have required loading a memory page from disk", .flags = 0, .defaultSortDesc = true, },
+   [CMAJFLT] = { .name = "CMAJFLT", .title = "    CMAJFLT ", .description = "Children processes' major faults", .flags = 0, .defaultSortDesc = true, },
+   [UTIME] = { .name = "UTIME", .title = " UTIME+  ", .description = "User CPU time - time the process spent executing in user mode", .flags = 0, .defaultSortDesc = true, },
+   [STIME] = { .name = "STIME", .title = " STIME+  ", .description = "System CPU time - time the kernel spent running system calls for this process", .flags = 0, .defaultSortDesc = true, },
+   [CUTIME] = { .name = "CUTIME", .title = " CUTIME+ ", .description = "Children processes' user CPU time", .flags = 0, .defaultSortDesc = true, },
+   [CSTIME] = { .name = "CSTIME", .title = " CSTIME+ ", .description = "Children processes' system CPU time", .flags = 0, .defaultSortDesc = true, },
+   [PRIORITY] = { .name = "PRIORITY", .title = "PRI ", .description = "Kernel's internal priority for the process", .flags = 0, },
+   [NICE] = { .name = "NICE", .title = " NI ", .description = "Nice value (the higher the value, the more it lets other processes take priority)", .flags = 0, },
+   [STARTTIME] = { .name = "STARTTIME", .title = "START ", .description = "Time the process was started", .flags = 0, },
+   [ELAPSED] = { .name = "ELAPSED", .title = "ELAPSED  ", .description = "Time since the process was started", .flags = 0, },
+   [PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
+   [M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
+   [M_RESIDENT] = { .name = "M_RESIDENT", .title = "  RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
+   [M_SHARE] = { .name = "M_SHARE", .title = "  SHR ", .description = "Size of the process's shared pages", .flags = 0, .defaultSortDesc = true, },
+   [M_PRIV] = { .name = "M_PRIV", .title = " PRIV ", .description = "The private memory size of the process - resident set size minus shared memory", .flags = 0, .defaultSortDesc = true, },
+   [M_TRS] = { .name = "M_TRS", .title = " CODE ", .description = "Size of the .text segment of the process (CODE)", .flags = 0, .defaultSortDesc = true, },
+   [M_DRS] = { .name = "M_DRS", .title = " DATA ", .description = "Size of the .data segment plus stack usage of the process (DATA)", .flags = 0, .defaultSortDesc = true, },
+   [M_LRS] = { .name = "M_LRS", .title = "  LIB ", .description = "The library size of the process (calculated from memory maps)", .flags = PROCESS_FLAG_LINUX_LRS_FIX, .defaultSortDesc = true, },
+   [ST_UID] = { .name = "ST_UID", .title = "UID", .description = "User ID of the process owner", .flags = 0, },
+   [PERCENT_CPU] = { .name = "PERCENT_CPU", .title = " CPU%", .description = "Percentage of the CPU time the process used in the last sampling", .flags = 0, .defaultSortDesc = true, .autoWidth = true, },
+   [PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, .autoWidth = true, },
+   [PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
+   [USER] = { .name = "USER", .title = "USER       ", .description = "Username of the process owner (or user ID if name cannot be determined)", .flags = 0, },
+   [TIME] = { .name = "TIME", .title = "  TIME+  ", .description = "Total time the process has spent in user and system time", .flags = 0, .defaultSortDesc = true, },
+   [NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, .defaultSortDesc = true, },
+   [TGID] = { .name = "TGID", .title = "TGID", .description = "Thread group ID (i.e. process ID)", .flags = 0, .pidColumn = true, },
+#ifdef HAVE_OPENVZ
+   [CTID] = { .name = "CTID", .title = " CTID    ", .description = "OpenVZ container ID (a.k.a. virtual environment ID)", .flags = PROCESS_FLAG_LINUX_OPENVZ, },
+   [VPID] = { .name = "VPID", .title = "VPID", .description = "OpenVZ process ID", .flags = PROCESS_FLAG_LINUX_OPENVZ, .pidColumn = true, },
+#endif
+#ifdef HAVE_VSERVER
+   [VXID] = { .name = "VXID", .title = " VXID ", .description = "VServer process ID", .flags = PROCESS_FLAG_LINUX_VSERVER, },
+#endif
+   [RCHAR] = { .name = "RCHAR", .title = "RCHAR ", .description = "Number of bytes the process has read", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [WCHAR] = { .name = "WCHAR", .title = "WCHAR ", .description = "Number of bytes the process has written", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [SYSCR] = { .name = "SYSCR", .title = "  READ_SYSC ", .description = "Number of read(2) syscalls for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [SYSCW] = { .name = "SYSCW", .title = " WRITE_SYSC ", .description = "Number of write(2) syscalls for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [RBYTES] = { .name = "RBYTES", .title = " IO_R ", .description = "Bytes of read(2) I/O for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [WBYTES] = { .name = "WBYTES", .title = " IO_W ", .description = "Bytes of write(2) I/O for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [CNCLWB] = { .name = "CNCLWB", .title = " IO_C ", .description = "Bytes of cancelled write(2) I/O", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [IO_READ_RATE] = { .name = "IO_READ_RATE", .title = "  DISK READ ", .description = "The I/O rate of read(2) in bytes per second for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [IO_WRITE_RATE] = { .name = "IO_WRITE_RATE", .title = " DISK WRITE ", .description = "The I/O rate of write(2) in bytes per second for the process", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [IO_RATE] = { .name = "IO_RATE", .title = "   DISK R/W ", .description = "Total I/O rate in bytes per second", .flags = PROCESS_FLAG_IO, .defaultSortDesc = true, },
+   [CGROUP] = { .name = "CGROUP", .title = "CGROUP (raw)", .description = "Which cgroup the process is in", .flags = PROCESS_FLAG_LINUX_CGROUP, .autoWidth = true, },
+   [CCGROUP] = { .name = "CCGROUP", .title = "CGROUP (compressed)", .description = "Which cgroup the process is in (condensed to essentials)", .flags = PROCESS_FLAG_LINUX_CGROUP, .autoWidth = true, },
+   [CONTAINER] = { .name = "CONTAINER", .title = "CONTAINER", .description = "Name of the container the process is in (guessed by heuristics)", .flags = PROCESS_FLAG_LINUX_CGROUP, .autoWidth = true, },
+   [OOM] = { .name = "OOM", .title = " OOM ", .description = "OOM (Out-of-Memory) killer score", .flags = PROCESS_FLAG_LINUX_OOM, .defaultSortDesc = true, },
+   [IO_PRIORITY] = { .name = "IO_PRIORITY", .title = "IO ", .description = "I/O priority", .flags = PROCESS_FLAG_LINUX_IOPRIO, },
+#ifdef HAVE_DELAYACCT
+   [PERCENT_CPU_DELAY] = { .name = "PERCENT_CPU_DELAY", .title = "CPUD% ", .description = "CPU delay %", .flags = PROCESS_FLAG_LINUX_DELAYACCT, .defaultSortDesc = true, },
+   [PERCENT_IO_DELAY] = { .name = "PERCENT_IO_DELAY", .title = " IOD% ", .description = "Block I/O delay %", .flags = PROCESS_FLAG_LINUX_DELAYACCT, .defaultSortDesc = true, },
+   [PERCENT_SWAP_DELAY] = { .name = "PERCENT_SWAP_DELAY", .title = "SWPD% ", .description = "Swapin delay %", .flags = PROCESS_FLAG_LINUX_DELAYACCT, .defaultSortDesc = true, },
+#endif
+   [M_PSS] = { .name = "M_PSS", .title = "  PSS ", .description = "proportional set size, same as M_RESIDENT but each page is divided by the number of processes sharing it", .flags = PROCESS_FLAG_LINUX_SMAPS, .defaultSortDesc = true, },
+   [M_SWAP] = { .name = "M_SWAP", .title = " SWAP ", .description = "Size of the process's swapped pages", .flags = PROCESS_FLAG_LINUX_SMAPS, .defaultSortDesc = true, },
+   [M_PSSWP] = { .name = "M_PSSWP", .title = " PSSWP ", .description = "shows proportional swap share of this mapping, unlike \"Swap\", this does not take into account swapped out page of underlying shmem objects", .flags = PROCESS_FLAG_LINUX_SMAPS, .defaultSortDesc = true, },
+   [CTXT] = { .name = "CTXT", .title = " CTXT ", .description = "Context switches (incremental sum of voluntary_ctxt_switches and nonvoluntary_ctxt_switches)", .flags = PROCESS_FLAG_LINUX_CTXT, .defaultSortDesc = true, },
+   [SECATTR] = { .name = "SECATTR", .title = "Security Attribute", .description = "Security attribute of the process (e.g. SELinux or AppArmor)", .flags = PROCESS_FLAG_LINUX_SECATTR, .autoWidth = true, },
+   [PROC_COMM] = { .name = "COMM", .title = "COMM            ", .description = "comm string of the process from /proc/[pid]/comm", .flags = 0, },
+   [PROC_EXE] = { .name = "EXE", .title = "EXE             ", .description = "Basename of exe of the process from /proc/[pid]/exe", .flags = 0, },
+   [CWD] = { .name = "CWD", .title = "CWD                       ", .description = "The current working directory of the process", .flags = PROCESS_FLAG_CWD, },
+   [AUTOGROUP_ID] = { .name = "AUTOGROUP_ID", .title = "AGRP", .description = "The autogroup identifier of the process", .flags = PROCESS_FLAG_LINUX_AUTOGROUP, },
+   [AUTOGROUP_NICE] = { .name = "AUTOGROUP_NICE", .title = " ANI", .description = "Nice value (the higher the value, the more other processes take priority) associated with the process autogroup", .flags = PROCESS_FLAG_LINUX_AUTOGROUP, },
+#ifdef SCHEDULER_SUPPORT
+   [SCHEDULERPOLICY] = { .name = "SCHEDULERPOLICY", .title = "SCHED ", .description = "Current scheduling policy of the process", .flags = PROCESS_FLAG_SCHEDPOL, },
+#endif
+};
+
+Process* LinuxProcess_new(const Machine* host) {
+   LinuxProcess* this = xCalloc(1, sizeof(LinuxProcess));
+   Object_setClass(this, Class(LinuxProcess));
+   Process_init(&this->super, host);
+   return &this->super;
+}
+
+void Process_delete(Object* cast) {
+   LinuxProcess* this = (LinuxProcess*) cast;
+   Process_done((Process*)cast);
+   free(this->container_short);
+   free(this->cgroup_short);
+   free(this->cgroup);
+#ifdef HAVE_OPENVZ
+   free(this->ctid);
+#endif
+   free(this->secattr);
+   free(this);
+}
+
+/*
+[1] Note that before kernel 2.6.26 a process that has not asked for
+an io priority formally uses "none" as scheduling class, but the
+io scheduler will treat such processes as if it were in the best
+effort class. The priority within the best effort class will  be
+dynamically  derived  from  the  cpu  nice level of the process:
+io_priority = (cpu_nice + 20) / 5. -- From ionice(1) man page
+*/
+static int LinuxProcess_effectiveIOPriority(const LinuxProcess* this) {
+   if (IOPriority_class(this->ioPriority) == IOPRIO_CLASS_NONE) {
+      return IOPriority_tuple(IOPRIO_CLASS_BE, (this->super.nice + 20) / 5);
+   }
+
+   return this->ioPriority;
+}
+
+#ifdef __ANDROID__
+#define SYS_ioprio_get __NR_ioprio_get
+#define SYS_ioprio_set __NR_ioprio_set
+#endif
+
+IOPriority LinuxProcess_updateIOPriority(Process* p) {
+   IOPriority ioprio = 0;
+// Other OSes masquerading as Linux (NetBSD?) don't have this syscall
+#ifdef SYS_ioprio_get
+   ioprio = syscall(SYS_ioprio_get, IOPRIO_WHO_PROCESS, Process_getPid(p));
+#endif
+   LinuxProcess* this = (LinuxProcess*) p;
+   this->ioPriority = ioprio;
+   return ioprio;
+}
+
+static bool LinuxProcess_setIOPriority(Process* p, Arg ioprio) {
+// Other OSes masquerading as Linux (NetBSD?) don't have this syscall
+#ifdef SYS_ioprio_set
+   syscall(SYS_ioprio_set, IOPRIO_WHO_PROCESS, Process_getPid(p), ioprio.i);
+#endif
+   return LinuxProcess_updateIOPriority(p) == ioprio.i;
+}
+
+bool LinuxProcess_rowSetIOPriority(Row* super, Arg ioprio) {
+   Process* p = (Process*) super;
+   assert(Object_isA((const Object*) p, (const ObjectClass*) &Process_class));
+   return LinuxProcess_setIOPriority(p, ioprio);
+}
+
+bool LinuxProcess_isAutogroupEnabled(void) {
+   char buf[16];
+   if (xReadfile(PROCDIR "/sys/kernel/sched_autogroup_enabled", buf, sizeof(buf)) < 0)
+      return false;
+   return buf[0] == '1';
+}
+
+static bool LinuxProcess_changeAutogroupPriorityBy(Process* p, Arg delta) {
+   char buffer[256];
+   pid_t pid = Process_getPid(p);
+   xSnprintf(buffer, sizeof(buffer), PROCDIR "/%d/autogroup", pid);
+
+   FILE* file = fopen(buffer, "r+");
+   if (!file)
+      return false;
+
+   long int identity;
+   int nice;
+   int ok = fscanf(file, "/autogroup-%ld nice %d", &identity, &nice);
+   bool success = false;
+   if (ok == 2 && fseek(file, 0L, SEEK_SET) == 0) {
+      xSnprintf(buffer, sizeof(buffer), "%d", nice + delta.i);
+      success = fputs(buffer, file) > 0;
+   }
+
+   fclose(file);
+   return success;
+}
+
+bool LinuxProcess_rowChangeAutogroupPriorityBy(Row* super, Arg delta) {
+   Process* p = (Process*) super;
+   assert(Object_isA((const Object*) p, (const ObjectClass*) &Process_class));
+   return LinuxProcess_changeAutogroupPriorityBy(p, delta);
+}
+
+static double LinuxProcess_totalIORate(const LinuxProcess* lp) {
+   double totalRate = NAN;
+   if (isNonnegative(lp->io_rate_read_bps)) {
+      totalRate = lp->io_rate_read_bps;
+      if (isNonnegative(lp->io_rate_write_bps)) {
+         totalRate += lp->io_rate_write_bps;
+      }
+   } else if (isNonnegative(lp->io_rate_write_bps)) {
+      totalRate = lp->io_rate_write_bps;
+   }
+   return totalRate;
+}
+
+static void LinuxProcess_rowWriteField(const Row* super, RichString* str, ProcessField field) {
+   const Process* this = (const Process*) super;
+   const LinuxProcess* lp = (const LinuxProcess*) super;
+   const Machine* host = (const Machine*) super->host;
+   const LinuxMachine* lhost = (const LinuxMachine*) super->host;
+
+   bool coloring = host->settings->highlightMegabytes;
+   char buffer[256]; buffer[255] = '\0';
+   int attr = CRT_colors[DEFAULT_COLOR];
+   size_t n = sizeof(buffer) - 1;
+
+   switch (field) {
+   case CMINFLT: Row_printCount(str, lp->cminflt, coloring); return;
+   case CMAJFLT: Row_printCount(str, lp->cmajflt, coloring); return;
+   case M_DRS: Row_printBytes(str, lp->m_drs * lhost->pageSize, coloring); return;
+   case M_LRS:
+      if (lp->m_lrs) {
+         Row_printBytes(str, lp->m_lrs * lhost->pageSize, coloring);
+         return;
+      }
+
+      attr = CRT_colors[PROCESS_SHADOW];
+      xSnprintf(buffer, n, "  N/A ");
+      break;
+   case M_TRS: Row_printBytes(str, lp->m_trs * lhost->pageSize, coloring); return;
+   case M_SHARE: Row_printBytes(str, lp->m_share * lhost->pageSize, coloring); return;
+   case M_PRIV: Row_printKBytes(str, lp->m_priv, coloring); return;
+   case M_PSS: Row_printKBytes(str, lp->m_pss, coloring); return;
+   case M_SWAP: Row_printKBytes(str, lp->m_swap, coloring); return;
+   case M_PSSWP: Row_printKBytes(str, lp->m_psswp, coloring); return;
+   case UTIME: Row_printTime(str, lp->utime, coloring); return;
+   case STIME: Row_printTime(str, lp->stime, coloring); return;
+   case CUTIME: Row_printTime(str, lp->cutime, coloring); return;
+   case CSTIME: Row_printTime(str, lp->cstime, coloring); return;
+   case RCHAR:  Row_printBytes(str, lp->io_rchar, coloring); return;
+   case WCHAR:  Row_printBytes(str, lp->io_wchar, coloring); return;
+   case SYSCR:  Row_printCount(str, lp->io_syscr, coloring); return;
+   case SYSCW:  Row_printCount(str, lp->io_syscw, coloring); return;
+   case RBYTES: Row_printBytes(str, lp->io_read_bytes, coloring); return;
+   case WBYTES: Row_printBytes(str, lp->io_write_bytes, coloring); return;
+   case CNCLWB: Row_printBytes(str, lp->io_cancelled_write_bytes, coloring); return;
+   case IO_READ_RATE:  Row_printRate(str, lp->io_rate_read_bps, coloring); return;
+   case IO_WRITE_RATE: Row_printRate(str, lp->io_rate_write_bps, coloring); return;
+   case IO_RATE: Row_printRate(str, LinuxProcess_totalIORate(lp), coloring); return;
+   #ifdef HAVE_OPENVZ
+   case CTID: xSnprintf(buffer, n, "%-8s ", lp->ctid ? lp->ctid : ""); break;
+   case VPID: xSnprintf(buffer, n, "%*d ", Process_pidDigits, lp->vpid); break;
+   #endif
+   #ifdef HAVE_VSERVER
+   case VXID: xSnprintf(buffer, n, "%5u ", lp->vxid); break;
+   #endif
+   case CGROUP: xSnprintf(buffer, n, "%-*.*s ", Row_fieldWidths[CGROUP], Row_fieldWidths[CGROUP], lp->cgroup ? lp->cgroup : "N/A"); break;
+   case CCGROUP: xSnprintf(buffer, n, "%-*.*s ", Row_fieldWidths[CCGROUP], Row_fieldWidths[CCGROUP], lp->cgroup_short ? lp->cgroup_short : (lp->cgroup ? lp->cgroup : "N/A")); break;
+   case CONTAINER: xSnprintf(buffer, n, "%-*.*s ", Row_fieldWidths[CONTAINER], Row_fieldWidths[CONTAINER], lp->container_short ? lp->container_short : "N/A"); break;
+   case OOM: xSnprintf(buffer, n, "%4u ", lp->oom); break;
+   case IO_PRIORITY: {
+      int klass = IOPriority_class(lp->ioPriority);
+      if (klass == IOPRIO_CLASS_NONE) {
+         // see note [1] above
+         xSnprintf(buffer, n, "B%1d ", (int) (this->nice + 20) / 5);
+      } else if (klass == IOPRIO_CLASS_BE) {
+         xSnprintf(buffer, n, "B%1d ", IOPriority_data(lp->ioPriority));
+      } else if (klass == IOPRIO_CLASS_RT) {
+         attr = CRT_colors[PROCESS_HIGH_PRIORITY];
+         xSnprintf(buffer, n, "R%1d ", IOPriority_data(lp->ioPriority));
+      } else if (klass == IOPRIO_CLASS_IDLE) {
+         attr = CRT_colors[PROCESS_LOW_PRIORITY];
+         xSnprintf(buffer, n, "id ");
+      } else {
+         xSnprintf(buffer, n, "?? ");
+      }
+      break;
+   }
+   #ifdef HAVE_DELAYACCT
+   case PERCENT_CPU_DELAY: Row_printPercentage(lp->cpu_delay_percent, buffer, n, 5, &attr); break;
+   case PERCENT_IO_DELAY: Row_printPercentage(lp->blkio_delay_percent, buffer, n, 5, &attr); break;
+   case PERCENT_SWAP_DELAY: Row_printPercentage(lp->swapin_delay_percent, buffer, n, 5, &attr); break;
+   #endif
+   case CTXT:
+      if (lp->ctxt_diff > 1000) {
+         attr |= A_BOLD;
+      }
+      xSnprintf(buffer, n, "%5lu ", lp->ctxt_diff);
+      break;
+   case SECATTR: snprintf(buffer, n, "%-*.*s ", Row_fieldWidths[SECATTR], Row_fieldWidths[SECATTR], lp->secattr ? lp->secattr : "N/A"); break;
+   case AUTOGROUP_ID:
+      if (lp->autogroup_id != -1) {
+         xSnprintf(buffer, n, "%4ld ", lp->autogroup_id);
+      } else {
+         attr = CRT_colors[PROCESS_SHADOW];
+         xSnprintf(buffer, n, " N/A ");
+      }
+      break;
+   case AUTOGROUP_NICE:
+      if (lp->autogroup_id != -1) {
+         xSnprintf(buffer, n, "%3d ", lp->autogroup_nice);
+         attr = lp->autogroup_nice < 0 ? CRT_colors[PROCESS_HIGH_PRIORITY]
+            : lp->autogroup_nice > 0 ? CRT_colors[PROCESS_LOW_PRIORITY]
+            : CRT_colors[PROCESS_SHADOW];
+      } else {
+         attr = CRT_colors[PROCESS_SHADOW];
+         xSnprintf(buffer, n, "N/A ");
+      }
+      break;
+   default:
+      Process_writeField(this, str, field);
+      return;
+   }
+
+   RichString_appendAscii(str, attr, buffer);
+}
+
+static int LinuxProcess_compareByKey(const Process* v1, const Process* v2, ProcessField key) {
+   const LinuxProcess* p1 = (const LinuxProcess*)v1;
+   const LinuxProcess* p2 = (const LinuxProcess*)v2;
+
+   switch (key) {
+   case M_DRS:
+      return SPACESHIP_NUMBER(p1->m_drs, p2->m_drs);
+   case M_LRS:
+      return SPACESHIP_NUMBER(p1->m_lrs, p2->m_lrs);
+   case M_TRS:
+      return SPACESHIP_NUMBER(p1->m_trs, p2->m_trs);
+   case M_SHARE:
+      return SPACESHIP_NUMBER(p1->m_share, p2->m_share);
+   case M_PRIV:
+      return SPACESHIP_NUMBER(p1->m_priv, p2->m_priv);
+   case M_PSS:
+      return SPACESHIP_NUMBER(p1->m_pss, p2->m_pss);
+   case M_SWAP:
+      return SPACESHIP_NUMBER(p1->m_swap, p2->m_swap);
+   case M_PSSWP:
+      return SPACESHIP_NUMBER(p1->m_psswp, p2->m_psswp);
+   case UTIME:
+      return SPACESHIP_NUMBER(p1->utime, p2->utime);
+   case CUTIME:
+      return SPACESHIP_NUMBER(p1->cutime, p2->cutime);
+   case STIME:
+      return SPACESHIP_NUMBER(p1->stime, p2->stime);
+   case CSTIME:
+      return SPACESHIP_NUMBER(p1->cstime, p2->cstime);
+   case RCHAR:
+      return SPACESHIP_NUMBER(p1->io_rchar, p2->io_rchar);
+   case WCHAR:
+      return SPACESHIP_NUMBER(p1->io_wchar, p2->io_wchar);
+   case SYSCR:
+      return SPACESHIP_NUMBER(p1->io_syscr, p2->io_syscr);
+   case SYSCW:
+      return SPACESHIP_NUMBER(p1->io_syscw, p2->io_syscw);
+   case RBYTES:
+      return SPACESHIP_NUMBER(p1->io_read_bytes, p2->io_read_bytes);
+   case WBYTES:
+      return SPACESHIP_NUMBER(p1->io_write_bytes, p2->io_write_bytes);
+   case CNCLWB:
+      return SPACESHIP_NUMBER(p1->io_cancelled_write_bytes, p2->io_cancelled_write_bytes);
+   case IO_READ_RATE:
+      return compareRealNumbers(p1->io_rate_read_bps, p2->io_rate_read_bps);
+   case IO_WRITE_RATE:
+      return compareRealNumbers(p1->io_rate_write_bps, p2->io_rate_write_bps);
+   case IO_RATE:
+      return compareRealNumbers(LinuxProcess_totalIORate(p1), LinuxProcess_totalIORate(p2));
+   #ifdef HAVE_OPENVZ
+   case CTID:
+      return SPACESHIP_NULLSTR(p1->ctid, p2->ctid);
+   case VPID:
+      return SPACESHIP_NUMBER(p1->vpid, p2->vpid);
+   #endif
+   #ifdef HAVE_VSERVER
+   case VXID:
+      return SPACESHIP_NUMBER(p1->vxid, p2->vxid);
+   #endif
+   case CGROUP:
+      return SPACESHIP_NULLSTR(p1->cgroup, p2->cgroup);
+   case CCGROUP:
+      return SPACESHIP_NULLSTR(p1->cgroup_short, p2->cgroup_short);
+   case CONTAINER:
+      return SPACESHIP_NULLSTR(p1->container_short, p2->container_short);
+   case OOM:
+      return SPACESHIP_NUMBER(p1->oom, p2->oom);
+   #ifdef HAVE_DELAYACCT
+   case PERCENT_CPU_DELAY:
+      return compareRealNumbers(p1->cpu_delay_percent, p2->cpu_delay_percent);
+   case PERCENT_IO_DELAY:
+      return compareRealNumbers(p1->blkio_delay_percent, p2->blkio_delay_percent);
+   case PERCENT_SWAP_DELAY:
+      return compareRealNumbers(p1->swapin_delay_percent, p2->swapin_delay_percent);
+   #endif
+   case IO_PRIORITY:
+      return SPACESHIP_NUMBER(LinuxProcess_effectiveIOPriority(p1), LinuxProcess_effectiveIOPriority(p2));
+   case CTXT:
+      return SPACESHIP_NUMBER(p1->ctxt_diff, p2->ctxt_diff);
+   case SECATTR:
+      return SPACESHIP_NULLSTR(p1->secattr, p2->secattr);
+   case AUTOGROUP_ID:
+      return SPACESHIP_NUMBER(p1->autogroup_id, p2->autogroup_id);
+   case AUTOGROUP_NICE:
+      return SPACESHIP_NUMBER(p1->autogroup_nice, p2->autogroup_nice);
+   default:
+      return Process_compareByKey_Base(v1, v2, key);
+   }
+}
+
+const ProcessClass LinuxProcess_class = {
+   .super = {
+      .super = {
+         .extends = Class(Process),
+         .display = Row_display,
+         .delete = Process_delete,
+         .compare = Process_compare
+      },
+      .isHighlighted = Process_rowIsHighlighted,
+      .isVisible = Process_rowIsVisible,
+      .matchesFilter = Process_rowMatchesFilter,
+      .compareByParent = Process_compareByParent,
+      .sortKeyString = Process_rowGetSortKey,
+      .writeField = LinuxProcess_rowWriteField
+   },
+   .compareByKey = LinuxProcess_compareByKey
+};