diff options
Diffstat (limited to 'Process.c')
| -rw-r--r-- | Process.c | 638 |
1 files changed, 638 insertions, 0 deletions
diff --git a/Process.c b/Process.c new file mode 100644 index 0000000..0f2f1f5 --- /dev/null +++ b/Process.c @@ -0,0 +1,638 @@ +/* +htop - Process.c +(C) 2004-2010 Hisham H. Muhammad +Released under the GNU GPL, see the COPYING file +in the source distribution for its full text. +*/ + +#define _GNU_SOURCE +#include "ProcessList.h" +#include "Object.h" +#include "CRT.h" +#include "String.h" +#include "Process.h" +#include "RichString.h" + +#include "debug.h" + +#include <stdio.h> +#include <sys/time.h> +#include <sys/resource.h> +#include <sys/param.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <signal.h> +#include <string.h> +#include <stdbool.h> +#include <pwd.h> +#include <sched.h> +#include <time.h> + +#ifdef HAVE_PLPA +#include <plpa.h> +#endif + +// This works only with glibc 2.1+. On earlier versions +// the behavior is similar to have a hardcoded page size. +#ifndef PAGE_SIZE +#define PAGE_SIZE ( sysconf(_SC_PAGESIZE) ) +#endif +#define PAGE_SIZE_KB ( PAGE_SIZE / ONE_K ) + +/*{ + +#ifndef Process_isKernelThread +#define Process_isKernelThread(_process) (_process->pgrp == 0) +#endif + +#ifndef Process_isUserlandThread +#define Process_isUserlandThread(_process) (_process->pid != _process->tgid) +#endif + +#ifndef Process_isThread +#define Process_isThread(_process) (Process_isUserlandThread(_process) || Process_isKernelThread(_process)) +#endif + +typedef enum ProcessField_ { + PID = 1, COMM, STATE, PPID, PGRP, SESSION, TTY_NR, TPGID, FLAGS, MINFLT, CMINFLT, MAJFLT, CMAJFLT, UTIME, + STIME, CUTIME, CSTIME, PRIORITY, NICE, ITREALVALUE, STARTTIME, VSIZE, RSS, RLIM, STARTCODE, ENDCODE, + STARTSTACK, KSTKESP, KSTKEIP, SIGNAL, BLOCKED, SSIGIGNORE, SIGCATCH, WCHAN, NSWAP, CNSWAP, EXIT_SIGNAL, + PROCESSOR, M_SIZE, M_RESIDENT, M_SHARE, M_TRS, M_DRS, M_LRS, M_DT, ST_UID, PERCENT_CPU, PERCENT_MEM, + USER, TIME, NLWP, TGID, + #ifdef HAVE_OPENVZ + CTID, VPID, + #endif + #ifdef HAVE_VSERVER + VXID, + #endif + #ifdef HAVE_TASKSTATS + RCHAR, WCHAR, SYSCR, SYSCW, RBYTES, WBYTES, CNCLWB, IO_READ_RATE, IO_WRITE_RATE, IO_RATE, + #endif + #ifdef HAVE_CGROUP + CGROUP, + #endif + LAST_PROCESSFIELD +} ProcessField; + +struct ProcessList_; + +typedef struct Process_ { + Object super; + + struct ProcessList_ *pl; + bool updated; + + pid_t pid; + char* comm; + int indent; + char state; + bool tag; + bool showChildren; + bool show; + pid_t ppid; + unsigned int pgrp; + unsigned int session; + unsigned int tty_nr; + pid_t tgid; + int tpgid; + unsigned long int flags; + #ifdef DEBUG + unsigned long int minflt; + unsigned long int cminflt; + unsigned long int majflt; + unsigned long int cmajflt; + #endif + unsigned long int utime; + unsigned long int stime; + long int cutime; + long int cstime; + long int priority; + long int nice; + long int nlwp; + char starttime_show[8]; + time_t starttime_ctime; + #ifdef DEBUG + long int itrealvalue; + unsigned long int vsize; + long int rss; + unsigned long int rlim; + unsigned long int startcode; + unsigned long int endcode; + unsigned long int startstack; + unsigned long int kstkesp; + unsigned long int kstkeip; + unsigned long int signal; + unsigned long int blocked; + unsigned long int sigignore; + unsigned long int sigcatch; + unsigned long int wchan; + unsigned long int nswap; + unsigned long int cnswap; + #endif + int exit_signal; + int processor; + int m_size; + int m_resident; + int m_share; + int m_trs; + int m_drs; + int m_lrs; + int m_dt; + uid_t st_uid; + float percent_cpu; + float percent_mem; + char* user; + #ifdef HAVE_OPENVZ + unsigned int ctid; + unsigned int vpid; + #endif + #ifdef HAVE_VSERVER + unsigned int vxid; + #endif + #ifdef HAVE_TASKSTATS + unsigned long long io_rchar; + unsigned long long io_wchar; + unsigned long long io_syscr; + unsigned long long io_syscw; + unsigned long long io_read_bytes; + unsigned long long io_write_bytes; + unsigned long long io_cancelled_write_bytes; + double io_rate_read_bps; + unsigned long long io_rate_read_time; + double io_rate_write_bps; + unsigned long long io_rate_write_time; + #endif + #ifdef HAVE_CGROUP + char* cgroup; + #endif +} Process; + +}*/ + +#ifdef DEBUG +char* PROCESS_CLASS = "Process"; +#else +#define PROCESS_CLASS NULL +#endif + +const char *Process_fieldNames[] = { + "", "PID", "Command", "STATE", "PPID", "PGRP", "SESSION", + "TTY_NR", "TPGID", "FLAGS", "MINFLT", "CMINFLT", "MAJFLT", "CMAJFLT", + "UTIME", "STIME", "CUTIME", "CSTIME", "PRIORITY", "NICE", "ITREALVALUE", + "STARTTIME", "VSIZE", "RSS", "RLIM", "STARTCODE", "ENDCODE", "STARTSTACK", + "KSTKESP", "KSTKEIP", "SIGNAL", "BLOCKED", "SIGIGNORE", "SIGCATCH", "WCHAN", + "NSWAP", "CNSWAP", "EXIT_SIGNAL", "PROCESSOR", "M_SIZE", "M_RESIDENT", "M_SHARE", + "M_TRS", "M_DRS", "M_LRS", "M_DT", "ST_UID", "PERCENT_CPU", "PERCENT_MEM", + "USER", "TIME", "NLWP", "TGID", +#ifdef HAVE_OPENVZ + "CTID", "VPID", +#endif +#ifdef HAVE_VSERVER + "VXID", +#endif +#ifdef HAVE_TASKSTATS + "RCHAR", "WCHAR", "SYSCR", "SYSCW", "RBYTES", "WBYTES", "CNCLWB", + "IO_READ_RATE", "IO_WRITE_RATE", "IO_RATE", +#endif +#ifdef HAVE_CGROUP + "CGROUP", +#endif +"*** report bug! ***" +}; + +const char *Process_fieldTitles[] = { + "", " PID ", "Command ", "S ", " PPID ", " PGRP ", " SESN ", + " TTY ", "TPGID ", "- ", "- ", "- ", "- ", "- ", + " UTIME+ ", " STIME+ ", "- ", "- ", "PRI ", " NI ", "- ", + "START ", "- ", "- ", "- ", "- ", "- ", "- ", + "- ", "- ", "- ", "- ", "- ", "- ", "- ", + "- ", "- ", "- ", "CPU ", " VIRT ", " RES ", " SHR ", + " CODE ", " DATA ", " LIB ", " DIRTY ", " UID ", "CPU% ", "MEM% ", + "USER ", " TIME+ ", "NLWP ", " TGID ", +#ifdef HAVE_OPENVZ + " CTID ", " VPID ", +#endif +#ifdef HAVE_VSERVER + " VXID ", +#endif +#ifdef HAVE_TASKSTATS + " RD_CHAR ", " WR_CHAR ", " RD_SYSC ", " WR_SYSC ", " IO_RBYTES ", " IO_WBYTES ", " IO_CANCEL ", + " IORR ", " IOWR ", " IO ", +#endif +#ifdef HAVE_CGROUP + " CGROUP ", +#endif +"*** report bug! ***" +}; + +static int Process_getuid = -1; + +#define ONE_K 1024 +#define ONE_M (ONE_K * ONE_K) +#define ONE_G (ONE_M * ONE_K) + +static void Process_printLargeNumber(Process* this, RichString* str, unsigned long number) { + char buffer[11]; + int len; + if(number >= (10 * ONE_M)) { + if(number >= (100 * ONE_M)) { + len = snprintf(buffer, 10, "%4ldG ", number / ONE_M); + RichString_appendn(str, CRT_colors[LARGE_NUMBER], buffer, len); + } else { + len = snprintf(buffer, 10, "%3.1fG ", (float)number / ONE_M); + RichString_appendn(str, CRT_colors[LARGE_NUMBER], buffer, len); + } + } else if (number >= 100000) { + len = snprintf(buffer, 10, "%4ldM ", number / ONE_K); + int attr = this->pl->highlightMegabytes + ? CRT_colors[PROCESS_MEGABYTES] + : CRT_colors[PROCESS]; + RichString_appendn(str, attr, buffer, len); + } else if (this->pl->highlightMegabytes && number >= 1000) { + len = snprintf(buffer, 10, "%2ld", number/1000); + RichString_appendn(str, CRT_colors[PROCESS_MEGABYTES], buffer, len); + number %= 1000; + len = snprintf(buffer, 10, "%03ld ", number); + RichString_appendn(str, CRT_colors[PROCESS], buffer, len); + } else { + len = snprintf(buffer, 10, "%5ld ", number); + RichString_appendn(str, CRT_colors[PROCESS], buffer, len); + } +} + +static double jiffy = 0.0; + +static void Process_printTime(RichString* str, unsigned long t) { + if(jiffy == 0.0) jiffy = sysconf(_SC_CLK_TCK); + double jiffytime = 1.0 / jiffy; + + double realTime = t * jiffytime; + int iRealTime = (int) realTime; + + int hours = iRealTime / 3600; + int minutes = (iRealTime / 60) % 60; + int seconds = iRealTime % 60; + int hundredths = (realTime - iRealTime) * 100; + char buffer[11]; + if (hours) { + snprintf(buffer, 10, "%2dh", hours); + RichString_append(str, CRT_colors[LARGE_NUMBER], buffer); + snprintf(buffer, 10, "%02d:%02d ", minutes, seconds); + } else { + snprintf(buffer, 10, "%2d:%02d.%02d ", minutes, seconds, hundredths); + } + RichString_append(str, CRT_colors[DEFAULT_COLOR], buffer); +} + +static inline void Process_writeCommand(Process* this, int attr, int baseattr, RichString* str) { + int start = RichString_size(str); + RichString_append(str, attr, this->comm); + if (this->pl->highlightBaseName) { + int finish = RichString_size(str) - 1; + int space = RichString_findChar(str, ' ', start); + if (space != -1) + finish = space - 1; + for (;;) { + int slash = RichString_findChar(str, '/', start); + if (slash == -1 || slash > finish) + break; + start = slash + 1; + } + RichString_setAttrn(str, baseattr, start, finish); + } +} + +static inline void Process_outputRate(Process* this, RichString* str, int attr, char* buffer, int n, double rate) { + rate = rate / 1024; + if (rate < 0.01) + snprintf(buffer, n, " 0 "); + else if (rate <= 10) + snprintf(buffer, n, "%5.2f ", rate); + else if (rate <= 100) + snprintf(buffer, n, "%5.1f ", rate); + else { + Process_printLargeNumber(this, str, rate); + return; + } + RichString_append(str, attr, buffer); +} + +static void Process_writeField(Process* this, RichString* str, ProcessField field) { + char buffer[128]; buffer[127] = '\0'; + int attr = CRT_colors[DEFAULT_COLOR]; + int baseattr = CRT_colors[PROCESS_BASENAME]; + int n = sizeof(buffer) - 1; + + switch (field) { + case PID: snprintf(buffer, n, "%5u ", this->pid); break; + case PPID: snprintf(buffer, n, "%5u ", this->ppid); break; + case PGRP: snprintf(buffer, n, "%5u ", this->pgrp); break; + case SESSION: snprintf(buffer, n, "%5u ", this->session); break; + case TTY_NR: snprintf(buffer, n, "%5u ", this->tty_nr); break; + case TGID: snprintf(buffer, n, "%5u ", this->tgid); break; + case TPGID: snprintf(buffer, n, "%5d ", this->tpgid); break; + case PROCESSOR: snprintf(buffer, n, "%3d ", this->processor+1); break; + case NLWP: snprintf(buffer, n, "%4ld ", this->nlwp); break; + case COMM: { + if (this->pl->highlightThreads && Process_isThread(this)) { + attr = CRT_colors[PROCESS_THREAD]; + baseattr = CRT_colors[PROCESS_THREAD_BASENAME]; + } + if (!this->pl->treeView || this->indent == 0) { + Process_writeCommand(this, attr, baseattr, str); + return; + } else { + char* buf = buffer; + int maxIndent = 0; + for (int i = 0; i < 32; i++) + if (this->indent & (1 << i)) + maxIndent = i+1; + for (int i = 0; i < maxIndent - 1; i++) { + if (this->indent & (1 << i)) + snprintf(buf, n, " | "); + else + snprintf(buf, n, " "); + buf += 4; + n -= 4; + } + if (this->pl->direction == 1) + snprintf(buf, n, " `%s ", this->showChildren ? "-" : "+" ); + else + snprintf(buf, n, " ,%s ", this->showChildren ? "-" : "+" ); + RichString_append(str, CRT_colors[PROCESS_TREE], buffer); + Process_writeCommand(this, attr, baseattr, str); + return; + } + } + case STATE: { + snprintf(buffer, n, "%c ", this->state); + attr = this->state == 'R' + ? CRT_colors[PROCESS_R_STATE] + : attr; + break; + } + case PRIORITY: { + if(this->priority == -100) + snprintf(buffer, n, " RT "); + else + snprintf(buffer, n, "%3ld ", this->priority); + break; + } + case NICE: { + snprintf(buffer, n, "%3ld ", this->nice); + attr = this->nice < 0 ? CRT_colors[PROCESS_HIGH_PRIORITY] + : this->nice > 0 ? CRT_colors[PROCESS_LOW_PRIORITY] + : attr; + break; + } + case M_DRS: Process_printLargeNumber(this, str, this->m_drs * PAGE_SIZE_KB); return; + case M_DT: Process_printLargeNumber(this, str, this->m_dt * PAGE_SIZE_KB); return; + case M_LRS: Process_printLargeNumber(this, str, this->m_lrs * PAGE_SIZE_KB); return; + case M_TRS: Process_printLargeNumber(this, str, this->m_trs * PAGE_SIZE_KB); return; + case M_SIZE: Process_printLargeNumber(this, str, this->m_size * PAGE_SIZE_KB); return; + case M_RESIDENT: Process_printLargeNumber(this, str, this->m_resident * PAGE_SIZE_KB); return; + case M_SHARE: Process_printLargeNumber(this, str, this->m_share * PAGE_SIZE_KB); return; + case ST_UID: snprintf(buffer, n, "%4d ", this->st_uid); break; + case USER: { + if (Process_getuid != (int) this->st_uid) + attr = CRT_colors[PROCESS_SHADOW]; + if (this->user) { + snprintf(buffer, n, "%-8s ", this->user); + } else { + snprintf(buffer, n, "%-8d ", this->st_uid); + } + if (buffer[8] != '\0') { + buffer[8] = ' '; + buffer[9] = '\0'; + } + break; + } + case UTIME: Process_printTime(str, this->utime); return; + case STIME: Process_printTime(str, this->stime); return; + case CUTIME: Process_printTime(str, this->cutime); return; + case CSTIME: Process_printTime(str, this->cstime); return; + case TIME: Process_printTime(str, this->utime + this->stime); return; + case PERCENT_CPU: { + if (this->percent_cpu > 999.9) { + snprintf(buffer, n, "%4d ", (unsigned int)this->percent_cpu); + } else if (this->percent_cpu > 99.9) { + snprintf(buffer, n, "%3d. ", (unsigned int)this->percent_cpu); + } else { + snprintf(buffer, n, "%4.1f ", this->percent_cpu); + } + break; + } + case PERCENT_MEM: { + if (this->percent_mem > 99.9) { + snprintf(buffer, n, "100. "); + } else { + snprintf(buffer, n, "%4.1f ", this->percent_mem); + } + break; + } + case STARTTIME: snprintf(buffer, n, "%s", this->starttime_show); break; + #ifdef HAVE_OPENVZ + case CTID: snprintf(buffer, n, "%5u ", this->ctid); break; + case VPID: snprintf(buffer, n, "%5u ", this->vpid); break; + #endif + #ifdef HAVE_VSERVER + case VXID: snprintf(buffer, n, "%5u ", this->vxid); break; + #endif + #ifdef HAVE_TASKSTATS + case RCHAR: snprintf(buffer, n, "%10llu ", this->io_rchar); break; + case WCHAR: snprintf(buffer, n, "%10llu ", this->io_wchar); break; + case SYSCR: snprintf(buffer, n, "%10llu ", this->io_syscr); break; + case SYSCW: snprintf(buffer, n, "%10llu ", this->io_syscw); break; + case RBYTES: snprintf(buffer, n, "%10llu ", this->io_read_bytes); break; + case WBYTES: snprintf(buffer, n, "%10llu ", this->io_write_bytes); break; + case CNCLWB: snprintf(buffer, n, "%10llu ", this->io_cancelled_write_bytes); break; + case IO_READ_RATE: Process_outputRate(this, str, attr, buffer, n, this->io_rate_read_bps); return; + case IO_WRITE_RATE: Process_outputRate(this, str, attr, buffer, n, this->io_rate_write_bps); return; + case IO_RATE: Process_outputRate(this, str, attr, buffer, n, this->io_rate_read_bps + this->io_rate_write_bps); return; + #endif + #ifdef HAVE_CGROUP + case CGROUP: snprintf(buffer, n, "%-10s ", this->cgroup); break; + #endif + + default: + snprintf(buffer, n, "- "); + } + RichString_append(str, attr, buffer); +} + +static void Process_display(Object* cast, RichString* out) { + Process* this = (Process*) cast; + ProcessField* fields = this->pl->fields; + RichString_prune(out); + for (int i = 0; fields[i]; i++) + Process_writeField(this, out, fields[i]); + if (this->pl->shadowOtherUsers && (int)this->st_uid != Process_getuid) + RichString_setAttr(out, CRT_colors[PROCESS_SHADOW]); + if (this->tag == true) + RichString_setAttr(out, CRT_colors[PROCESS_TAG]); + assert(out->len > 0); +} + +void Process_delete(Object* cast) { + Process* this = (Process*) cast; + assert (this != NULL); + if (this->comm) free(this->comm); +#ifdef HAVE_CGROUP + if (this->cgroup) free(this->cgroup); +#endif + free(this); +} + +Process* Process_new(struct ProcessList_ *pl) { + Process* this = calloc(sizeof(Process), 1); + Object_setClass(this, PROCESS_CLASS); + ((Object*)this)->display = Process_display; + ((Object*)this)->delete = Process_delete; + this->pid = 0; + this->pl = pl; + this->tag = false; + this->showChildren = true; + this->show = true; + this->updated = false; + this->utime = 0; + this->stime = 0; + this->comm = NULL; + this->indent = 0; +#ifdef HAVE_CGROUP + this->cgroup = NULL; +#endif + if (Process_getuid == -1) Process_getuid = getuid(); + return this; +} + +void Process_toggleTag(Process* this) { + this->tag = this->tag == true ? false : true; +} + +bool Process_setPriority(Process* this, int priority) { + int old_prio = getpriority(PRIO_PROCESS, this->pid); + int err = setpriority(PRIO_PROCESS, this->pid, priority); + if (err == 0 && old_prio != getpriority(PRIO_PROCESS, this->pid)) { + this->nice = priority; + } + return (err == 0); +} + +#ifdef HAVE_PLPA +unsigned long Process_getAffinity(Process* this) { + unsigned long mask = 0; + plpa_sched_getaffinity(this->pid, sizeof(unsigned long), (plpa_cpu_set_t*) &mask); + return mask; +} + +bool Process_setAffinity(Process* this, unsigned long mask) { + return (plpa_sched_setaffinity(this->pid, sizeof(unsigned long), (plpa_cpu_set_t*) &mask) == 0); +} +#endif + +void Process_sendSignal(Process* this, int sgn) { + kill(this->pid, sgn); +} + +int Process_pidCompare(const void* v1, const void* v2) { + Process* p1 = (Process*)v1; + Process* p2 = (Process*)v2; + return (p1->pid - p2->pid); +} + +int Process_compare(const void* v1, const void* v2) { + Process *p1, *p2; + ProcessList *pl = ((Process*)v1)->pl; + if (pl->direction == 1) { + p1 = (Process*)v1; + p2 = (Process*)v2; + } else { + p2 = (Process*)v1; + p1 = (Process*)v2; + } + long long diff; + switch (pl->sortKey) { + case PID: + return (p1->pid - p2->pid); + case PPID: + return (p1->ppid - p2->ppid); + case USER: + return strcmp(p1->user ? p1->user : "", p2->user ? p2->user : ""); + case PRIORITY: + return (p1->priority - p2->priority); + case PROCESSOR: + return (p1->processor - p2->processor); + case SESSION: + return (p1->session - p2->session); + case STATE: + return (p1->state - p2->state); + case NICE: + return (p1->nice - p2->nice); + 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_SIZE: + return (p2->m_size - p1->m_size); + case M_RESIDENT: + return (p2->m_resident - p1->m_resident); + case M_SHARE: + return (p2->m_share - p1->m_share); + case PERCENT_CPU: + return (p2->percent_cpu > p1->percent_cpu ? 1 : -1); + case PERCENT_MEM: + return (p2->m_resident - p1->m_resident); + case UTIME: + return (p2->utime - p1->utime); + case STIME: + return (p2->stime - p1->stime); + case TIME: + return ((p2->utime+p2->stime) - (p1->utime+p1->stime)); + case COMM: + return strcmp(p1->comm, p2->comm); + case NLWP: + return (p1->nlwp - p2->nlwp); + case STARTTIME: { + if (p1->starttime_ctime == p2->starttime_ctime) + return (p1->pid - p2->pid); + else + return (p1->starttime_ctime - p2->starttime_ctime); + } + #ifdef HAVE_OPENVZ + case CTID: + return (p1->ctid - p2->ctid); + case VPID: + return (p1->vpid - p2->vpid); + #endif + #ifdef HAVE_VSERVER + case VXID: + return (p1->vxid - p2->vxid); + #endif + #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_CGROUP + case CGROUP: + return strcmp(p1->cgroup ? p1->cgroup : "", p2->cgroup ? p2->cgroup : ""); + #endif + + default: + return (p1->pid - p2->pid); + } + test_diff: + return (diff > 0) ? 1 : (diff < 0 ? -1 : 0); +} |