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437 lines
20 KiB
C
437 lines
20 KiB
C
/*
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htop - LinuxProcess.c
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(C) 2014 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "Process.h"
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#include "ProcessList.h"
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#include "LinuxProcess.h"
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#include "Platform.h"
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#include "CRT.h"
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/syscall.h>
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/*{
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#define PROCESS_FLAG_LINUX_IOPRIO 0x0100
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#define PROCESS_FLAG_LINUX_OPENVZ 0x0200
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#define PROCESS_FLAG_LINUX_VSERVER 0x0400
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#define PROCESS_FLAG_LINUX_CGROUP 0x0800
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#define PROCESS_FLAG_LINUX_OOM 0x1000
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typedef enum UnsupportedProcessFields {
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FLAGS = 9,
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ITREALVALUE = 20,
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VSIZE = 22,
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RSS = 23,
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RLIM = 24,
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STARTCODE = 25,
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ENDCODE = 26,
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STARTSTACK = 27,
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KSTKESP = 28,
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KSTKEIP = 29,
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SIGNAL = 30,
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BLOCKED = 31,
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SSIGIGNORE = 32,
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SIGCATCH = 33,
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WCHAN = 34,
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NSWAP = 35,
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CNSWAP = 36,
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EXIT_SIGNAL = 37,
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} UnsupportedProcessField;
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typedef enum LinuxProcessFields {
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CMINFLT = 11,
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CMAJFLT = 13,
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UTIME = 14,
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STIME = 15,
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CUTIME = 16,
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CSTIME = 17,
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M_SHARE = 41,
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M_TRS = 42,
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M_DRS = 43,
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M_LRS = 44,
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M_DT = 45,
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#ifdef HAVE_OPENVZ
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CTID = 100,
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VPID = 101,
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#endif
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#ifdef HAVE_VSERVER
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VXID = 102,
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#endif
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#ifdef HAVE_TASKSTATS
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RCHAR = 103,
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WCHAR = 104,
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SYSCR = 105,
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SYSCW = 106,
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RBYTES = 107,
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WBYTES = 108,
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CNCLWB = 109,
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IO_READ_RATE = 110,
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IO_WRITE_RATE = 111,
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IO_RATE = 112,
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#endif
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#ifdef HAVE_CGROUP
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CGROUP = 113,
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#endif
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OOM = 114,
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IO_PRIORITY = 115,
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LAST_PROCESSFIELD = 116,
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} LinuxProcessField;
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#include "IOPriority.h"
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typedef struct LinuxProcess_ {
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Process super;
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IOPriority ioPriority;
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unsigned long int cminflt;
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unsigned long int cmajflt;
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unsigned long long int utime;
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unsigned long long int stime;
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unsigned long long int cutime;
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unsigned long long int cstime;
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long m_share;
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long m_trs;
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long m_drs;
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long m_lrs;
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long m_dt;
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#ifdef HAVE_TASKSTATS
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unsigned long long io_rchar;
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unsigned long long io_wchar;
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unsigned long long io_syscr;
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unsigned long long io_syscw;
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unsigned long long io_read_bytes;
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unsigned long long io_write_bytes;
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unsigned long long io_cancelled_write_bytes;
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unsigned long long io_rate_read_time;
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unsigned long long io_rate_write_time;
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double io_rate_read_bps;
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double io_rate_write_bps;
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#endif
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#ifdef HAVE_OPENVZ
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unsigned int ctid;
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unsigned int vpid;
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#endif
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#ifdef HAVE_VSERVER
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unsigned int vxid;
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#endif
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#ifdef HAVE_CGROUP
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char* cgroup;
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#endif
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unsigned int oom;
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char* ttyDevice;
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} LinuxProcess;
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#ifndef Process_isKernelThread
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#define Process_isKernelThread(_process) (_process->pgrp == 0)
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#endif
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#ifndef Process_isUserlandThread
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#define Process_isUserlandThread(_process) (_process->pid != _process->tgid)
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#endif
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}*/
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ProcessFieldData Process_fields[] = {
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[0] = { .name = "", .title = NULL, .description = NULL, .flags = 0, },
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[PID] = { .name = "PID", .title = " PID ", .description = "Process/thread ID", .flags = 0, },
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[COMM] = { .name = "Command", .title = "Command ", .description = "Command line", .flags = 0, },
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[STATE] = { .name = "STATE", .title = "S ", .description = "Process state (S sleeping, R running, D disk, Z zombie, T traced, W paging)", .flags = 0, },
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[PPID] = { .name = "PPID", .title = " PPID ", .description = "Parent process ID", .flags = 0, },
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[PGRP] = { .name = "PGRP", .title = " PGRP ", .description = "Process group ID", .flags = 0, },
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[SESSION] = { .name = "SESSION", .title = " SID ", .description = "Process's session ID", .flags = 0, },
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[TTY_NR] = { .name = "TTY_NR", .title = "TTY ", .description = "Controlling terminal", .flags = 0, },
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[TPGID] = { .name = "TPGID", .title = " TPGID ", .description = "Process ID of the fg process group of the controlling terminal", .flags = 0, },
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[FLAGS] = { .name = "FLAGS", .title = NULL, .description = NULL, .flags = 0, },
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[MINFLT] = { .name = "MINFLT", .title = " MINFLT ", .description = "Number of minor faults which have not required loading a memory page from disk", .flags = 0, },
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[CMINFLT] = { .name = "CMINFLT", .title = " CMINFLT ", .description = "Children processes' minor faults", .flags = 0, },
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[MAJFLT] = { .name = "MAJFLT", .title = " MAJFLT ", .description = "Number of major faults which have required loading a memory page from disk", .flags = 0, },
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[CMAJFLT] = { .name = "CMAJFLT", .title = " CMAJFLT ", .description = "Children processes' major faults", .flags = 0, },
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[UTIME] = { .name = "UTIME", .title = " UTIME+ ", .description = "User CPU time - time the process spent executing in user mode", .flags = 0, },
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[STIME] = { .name = "STIME", .title = " STIME+ ", .description = "System CPU time - time the kernel spent running system calls for this process", .flags = 0, },
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[CUTIME] = { .name = "CUTIME", .title = " CUTIME+ ", .description = "Children processes' user CPU time", .flags = 0, },
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[CSTIME] = { .name = "CSTIME", .title = " CSTIME+ ", .description = "Children processes' system CPU time", .flags = 0, },
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[PRIORITY] = { .name = "PRIORITY", .title = "PRI ", .description = "Kernel's internal priority for the process", .flags = 0, },
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[NICE] = { .name = "NICE", .title = " NI ", .description = "Nice value (the higher the value, the more it lets other processes take priority)", .flags = 0, },
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[ITREALVALUE] = { .name = "ITREALVALUE", .title = NULL, .description = NULL, .flags = 0, },
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[STARTTIME] = { .name = "STARTTIME", .title = "START ", .description = "Time the process was started", .flags = 0, },
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[VSIZE] = { .name = "VSIZE", .title = NULL, .description = NULL, .flags = 0, },
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[RSS] = { .name = "RSS", .title = NULL, .description = NULL, .flags = 0, },
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[RLIM] = { .name = "RLIM", .title = NULL, .description = NULL, .flags = 0, },
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[STARTCODE] = { .name = "STARTCODE", .title = NULL, .description = NULL, .flags = 0, },
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[ENDCODE] = { .name = "ENDCODE", .title = NULL, .description = NULL, .flags = 0, },
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[STARTSTACK] = { .name = "STARTSTACK", .title = NULL, .description = NULL, .flags = 0, },
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[KSTKESP] = { .name = "KSTKESP", .title = NULL, .description = NULL, .flags = 0, },
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[KSTKEIP] = { .name = "KSTKEIP", .title = NULL, .description = NULL, .flags = 0, },
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[SIGNAL] = { .name = "SIGNAL", .title = NULL, .description = NULL, .flags = 0, },
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[BLOCKED] = { .name = "BLOCKED", .title = NULL, .description = NULL, .flags = 0, },
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[SSIGIGNORE] = { .name = "SIGIGNORE", .title = NULL, .description = NULL, .flags = 0, },
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[SIGCATCH] = { .name = "SIGCATCH", .title = NULL, .description = NULL, .flags = 0, },
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[WCHAN] = { .name = "WCHAN", .title = NULL, .description = NULL, .flags = 0, },
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[NSWAP] = { .name = "NSWAP", .title = NULL, .description = NULL, .flags = 0, },
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[CNSWAP] = { .name = "CNSWAP", .title = NULL, .description = NULL, .flags = 0, },
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[EXIT_SIGNAL] = { .name = "EXIT_SIGNAL", .title = NULL, .description = NULL, .flags = 0, },
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[PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
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[M_SIZE] = { .name = "M_SIZE", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, },
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[M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, },
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[M_SHARE] = { .name = "M_SHARE", .title = " SHR ", .description = "Size of the process's shared pages", .flags = 0, },
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[M_TRS] = { .name = "M_TRS", .title = " CODE ", .description = "Size of the text segment of the process", .flags = 0, },
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[M_DRS] = { .name = "M_DRS", .title = " DATA ", .description = "Size of the data segment plus stack usage of the process", .flags = 0, },
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[M_LRS] = { .name = "M_LRS", .title = " LIB ", .description = "The library size of the process", .flags = 0, },
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[M_DT] = { .name = "M_DT", .title = " DIRTY ", .description = "Size of the dirty pages of the process", .flags = 0, },
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[ST_UID] = { .name = "ST_UID", .title = " UID ", .description = "User ID of the process owner", .flags = 0, },
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[PERCENT_CPU] = { .name = "PERCENT_CPU", .title = "CPU% ", .description = "Percentage of the CPU time the process used in the last sampling", .flags = 0, },
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[PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, },
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[USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .flags = 0, },
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[TIME] = { .name = "TIME", .title = " TIME+ ", .description = "Total time the process has spent in user and system time", .flags = 0, },
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[NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, },
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[TGID] = { .name = "TGID", .title = " TGID ", .description = "Thread group ID (i.e. process ID)", .flags = 0, },
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#ifdef HAVE_OPENVZ
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[CTID] = { .name = "CTID", .title = " CTID ", .description = "OpenVZ container ID (a.k.a. virtual environment ID)", .flags = PROCESS_FLAG_LINUX_OPENVZ, },
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[VPID] = { .name = "VPID", .title = " VPID ", .description = "OpenVZ process ID", .flags = PROCESS_FLAG_LINUX_OPENVZ, },
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#endif
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#ifdef HAVE_VSERVER
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[VXID] = { .name = "VXID", .title = " VXID ", .description = "VServer process ID", .flags = PROCESS_FLAG_LINUX_VSERVER, },
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#endif
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#ifdef HAVE_TASKSTATS
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[RCHAR] = { .name = "RCHAR", .title = " RD_CHAR ", .description = "Number of bytes the process has read", .flags = PROCESS_FLAG_IO, },
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[WCHAR] = { .name = "WCHAR", .title = " WR_CHAR ", .description = "Number of bytes the process has written", .flags = PROCESS_FLAG_IO, },
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[SYSCR] = { .name = "SYSCR", .title = " RD_SYSC ", .description = "Number of read(2) syscalls for the process", .flags = PROCESS_FLAG_IO, },
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[SYSCW] = { .name = "SYSCW", .title = " WR_SYSC ", .description = "Number of write(2) syscalls for the process", .flags = PROCESS_FLAG_IO, },
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[RBYTES] = { .name = "RBYTES", .title = " IO_RBYTES ", .description = "Bytes of read(2) I/O for the process", .flags = PROCESS_FLAG_IO, },
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[WBYTES] = { .name = "WBYTES", .title = " IO_WBYTES ", .description = "Bytes of write(2) I/O for the process", .flags = PROCESS_FLAG_IO, },
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[CNCLWB] = { .name = "CNCLWB", .title = " IO_CANCEL ", .description = "Bytes of cancelled write(2) I/O", .flags = PROCESS_FLAG_IO, },
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[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, },
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[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, },
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[IO_RATE] = { .name = "IO_RATE", .title = " DISK R/W ", .description = "Total I/O rate in bytes per second", .flags = PROCESS_FLAG_IO, },
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#endif
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#ifdef HAVE_CGROUP
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[CGROUP] = { .name = "CGROUP", .title = " CGROUP ", .description = "Which cgroup the process is in", .flags = PROCESS_FLAG_LINUX_CGROUP, },
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#endif
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[OOM] = { .name = "OOM", .title = " OOM ", .description = "OOM (Out-of-Memory) killer score", .flags = PROCESS_FLAG_LINUX_OOM, },
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[IO_PRIORITY] = { .name = "IO_PRIORITY", .title = "IO ", .description = "I/O priority", .flags = PROCESS_FLAG_LINUX_IOPRIO, },
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[LAST_PROCESSFIELD] = { .name = "*** report bug! ***", .title = NULL, .description = NULL, .flags = 0, },
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};
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ProcessPidColumn Process_pidColumns[] = {
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{ .id = PID, .label = "PID" },
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{ .id = PPID, .label = "PPID" },
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#ifdef HAVE_OPENVZ
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{ .id = VPID, .label = "VPID" },
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#endif
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{ .id = TPGID, .label = "TPGID" },
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{ .id = TGID, .label = "TGID" },
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{ .id = PGRP, .label = "PGRP" },
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{ .id = SESSION, .label = "SID" },
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{ .id = OOM, .label = "OOM" },
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{ .id = 0, .label = NULL },
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};
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ProcessClass LinuxProcess_class = {
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.super = {
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.extends = Class(Process),
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.display = Process_display,
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.delete = Process_delete,
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.compare = LinuxProcess_compare
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},
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.writeField = (Process_WriteField) LinuxProcess_writeField,
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};
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LinuxProcess* LinuxProcess_new(Settings* settings) {
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LinuxProcess* this = xCalloc(1, sizeof(LinuxProcess));
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Object_setClass(this, Class(LinuxProcess));
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Process_init(&this->super, settings);
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return this;
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}
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void Process_delete(Object* cast) {
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LinuxProcess* this = (LinuxProcess*) cast;
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Process_done((Process*)cast);
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#ifdef HAVE_CGROUP
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free(this->cgroup);
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#endif
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free(this->ttyDevice);
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free(this);
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}
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/*
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[1] Note that before kernel 2.6.26 a process that has not asked for
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an io priority formally uses "none" as scheduling class, but the
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io scheduler will treat such processes as if it were in the best
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effort class. The priority within the best effort class will be
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dynamically derived from the cpu nice level of the process:
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io_priority = (cpu_nice + 20) / 5. -- From ionice(1) man page
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*/
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#define LinuxProcess_effectiveIOPriority(p_) (IOPriority_class(p_->ioPriority) == IOPRIO_CLASS_NONE ? IOPriority_tuple(IOPRIO_CLASS_BE, (p_->super.nice + 20) / 5) : p_->ioPriority)
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IOPriority LinuxProcess_updateIOPriority(LinuxProcess* this) {
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IOPriority ioprio = 0;
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// Other OSes masquerading as Linux (NetBSD?) don't have this syscall
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#ifdef SYS_ioprio_get
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ioprio = syscall(SYS_ioprio_get, IOPRIO_WHO_PROCESS, this->super.pid);
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#endif
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this->ioPriority = ioprio;
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return ioprio;
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}
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bool LinuxProcess_setIOPriority(LinuxProcess* this, IOPriority ioprio) {
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// Other OSes masquerading as Linux (NetBSD?) don't have this syscall
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#ifdef SYS_ioprio_set
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syscall(SYS_ioprio_set, IOPRIO_WHO_PROCESS, this->super.pid, ioprio);
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#endif
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return (LinuxProcess_updateIOPriority(this) == ioprio);
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}
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void LinuxProcess_writeField(Process* this, RichString* str, ProcessField field) {
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LinuxProcess* lp = (LinuxProcess*) this;
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bool coloring = this->settings->highlightMegabytes;
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char buffer[256]; buffer[255] = '\0';
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int attr = CRT_colors[DEFAULT_COLOR];
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int n = sizeof(buffer) - 1;
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switch ((int)field) {
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case TTY_NR: {
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if (lp->ttyDevice) {
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xSnprintf(buffer, n, "%-9s", lp->ttyDevice + 5 /* skip "/dev/" */);
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} else {
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attr = CRT_colors[PROCESS_SHADOW];
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xSnprintf(buffer, n, "? ");
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}
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break;
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}
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case CMINFLT: Process_colorNumber(str, lp->cminflt, coloring); return;
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case CMAJFLT: Process_colorNumber(str, lp->cmajflt, coloring); return;
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case M_DRS: Process_humanNumber(str, lp->m_drs * PAGE_SIZE_KB, coloring); return;
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case M_DT: Process_humanNumber(str, lp->m_dt * PAGE_SIZE_KB, coloring); return;
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case M_LRS: Process_humanNumber(str, lp->m_lrs * PAGE_SIZE_KB, coloring); return;
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case M_TRS: Process_humanNumber(str, lp->m_trs * PAGE_SIZE_KB, coloring); return;
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case M_SHARE: Process_humanNumber(str, lp->m_share * PAGE_SIZE_KB, coloring); return;
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case UTIME: Process_printTime(str, lp->utime); return;
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case STIME: Process_printTime(str, lp->stime); return;
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case CUTIME: Process_printTime(str, lp->cutime); return;
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case CSTIME: Process_printTime(str, lp->cstime); return;
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#ifdef HAVE_TASKSTATS
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case RCHAR: Process_colorNumber(str, lp->io_rchar, coloring); return;
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case WCHAR: Process_colorNumber(str, lp->io_wchar, coloring); return;
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case SYSCR: Process_colorNumber(str, lp->io_syscr, coloring); return;
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case SYSCW: Process_colorNumber(str, lp->io_syscw, coloring); return;
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case RBYTES: Process_colorNumber(str, lp->io_read_bytes, coloring); return;
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case WBYTES: Process_colorNumber(str, lp->io_write_bytes, coloring); return;
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case CNCLWB: Process_colorNumber(str, lp->io_cancelled_write_bytes, coloring); return;
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case IO_READ_RATE: Process_outputRate(str, buffer, n, lp->io_rate_read_bps, coloring); return;
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case IO_WRITE_RATE: Process_outputRate(str, buffer, n, lp->io_rate_write_bps, coloring); return;
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case IO_RATE: {
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double totalRate = (lp->io_rate_read_bps != -1)
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? (lp->io_rate_read_bps + lp->io_rate_write_bps)
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: -1;
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Process_outputRate(str, buffer, n, totalRate, coloring); return;
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}
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#endif
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#ifdef HAVE_OPENVZ
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case CTID: xSnprintf(buffer, n, "%7u ", lp->ctid); break;
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case VPID: xSnprintf(buffer, n, Process_pidFormat, lp->vpid); break;
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#endif
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#ifdef HAVE_VSERVER
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case VXID: xSnprintf(buffer, n, "%5u ", lp->vxid); break;
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#endif
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#ifdef HAVE_CGROUP
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case CGROUP: xSnprintf(buffer, n, "%-10s ", lp->cgroup); break;
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#endif
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case OOM: xSnprintf(buffer, n, Process_pidFormat, lp->oom); break;
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case IO_PRIORITY: {
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int klass = IOPriority_class(lp->ioPriority);
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if (klass == IOPRIO_CLASS_NONE) {
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// see note [1] above
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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;
|
|
}
|
|
default:
|
|
Process_writeField((Process*)this, str, field);
|
|
return;
|
|
}
|
|
RichString_append(str, attr, buffer);
|
|
}
|
|
|
|
long LinuxProcess_compare(const void* v1, const void* v2) {
|
|
LinuxProcess *p1, *p2;
|
|
Settings *settings = ((Process*)v1)->settings;
|
|
if (settings->direction == 1) {
|
|
p1 = (LinuxProcess*)v1;
|
|
p2 = (LinuxProcess*)v2;
|
|
} else {
|
|
p2 = (LinuxProcess*)v1;
|
|
p1 = (LinuxProcess*)v2;
|
|
}
|
|
long long diff;
|
|
switch ((int)settings->sortKey) {
|
|
case M_DRS:
|
|
return (p2->m_drs - p1->m_drs);
|
|
case M_DT:
|
|
return (p2->m_dt - p1->m_dt);
|
|
case M_LRS:
|
|
return (p2->m_lrs - p1->m_lrs);
|
|
case M_TRS:
|
|
return (p2->m_trs - p1->m_trs);
|
|
case M_SHARE:
|
|
return (p2->m_share - p1->m_share);
|
|
case UTIME: diff = p2->utime - p1->utime; goto test_diff;
|
|
case CUTIME: diff = p2->cutime - p1->cutime; goto test_diff;
|
|
case STIME: diff = p2->stime - p1->stime; goto test_diff;
|
|
case CSTIME: diff = p2->cstime - p1->cstime; goto test_diff;
|
|
#ifdef HAVE_TASKSTATS
|
|
case RCHAR: diff = p2->io_rchar - p1->io_rchar; goto test_diff;
|
|
case WCHAR: diff = p2->io_wchar - p1->io_wchar; goto test_diff;
|
|
case SYSCR: diff = p2->io_syscr - p1->io_syscr; goto test_diff;
|
|
case SYSCW: diff = p2->io_syscw - p1->io_syscw; goto test_diff;
|
|
case RBYTES: diff = p2->io_read_bytes - p1->io_read_bytes; goto test_diff;
|
|
case WBYTES: diff = p2->io_write_bytes - p1->io_write_bytes; goto test_diff;
|
|
case CNCLWB: diff = p2->io_cancelled_write_bytes - p1->io_cancelled_write_bytes; goto test_diff;
|
|
case IO_READ_RATE: diff = p2->io_rate_read_bps - p1->io_rate_read_bps; goto test_diff;
|
|
case IO_WRITE_RATE: diff = p2->io_rate_write_bps - p1->io_rate_write_bps; goto test_diff;
|
|
case IO_RATE: diff = (p2->io_rate_read_bps + p2->io_rate_write_bps) - (p1->io_rate_read_bps + p1->io_rate_write_bps); goto test_diff;
|
|
#endif
|
|
#ifdef HAVE_OPENVZ
|
|
case CTID:
|
|
return (p2->ctid - p1->ctid);
|
|
case VPID:
|
|
return (p2->vpid - p1->vpid);
|
|
#endif
|
|
#ifdef HAVE_VSERVER
|
|
case VXID:
|
|
return (p2->vxid - p1->vxid);
|
|
#endif
|
|
#ifdef HAVE_CGROUP
|
|
case CGROUP:
|
|
return strcmp(p1->cgroup ? p1->cgroup : "", p2->cgroup ? p2->cgroup : "");
|
|
#endif
|
|
case OOM:
|
|
return (p2->oom - p1->oom);
|
|
case IO_PRIORITY:
|
|
return LinuxProcess_effectiveIOPriority(p1) - LinuxProcess_effectiveIOPriority(p2);
|
|
default:
|
|
return Process_compare(v1, v2);
|
|
}
|
|
test_diff:
|
|
return (diff > 0) ? 1 : (diff < 0 ? -1 : 0);
|
|
}
|
|
|
|
bool Process_isThread(Process* this) {
|
|
return (Process_isUserlandThread(this) || Process_isKernelThread(this));
|
|
}
|
|
|