mirror of https://github.com/xzeldon/htop.git
Linux: add process->starttime and use it for STARTTIME column (#700)
this way a remount of /proc will not reset starttimes and we can also see startup times for processes started before the mount of /proc also record btime (boot time in seconds since epoch) as Linux semi-global
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@ -15,6 +15,7 @@ in the source distribution for its full text.
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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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#include <time.h>
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/*{
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@ -106,6 +107,7 @@ typedef struct LinuxProcess_ {
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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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unsigned long long starttime;
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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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@ -152,6 +154,8 @@ typedef struct LinuxProcess_ {
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}*/
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long long btime; /* semi-global */
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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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@ -344,6 +348,13 @@ void LinuxProcess_writeField(Process* this, RichString* str, ProcessField field)
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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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case STARTTIME: {
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struct tm date;
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time_t starttimewall = btime + (lp->starttime / sysconf(_SC_CLK_TCK));
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(void) localtime_r(&starttimewall, &date);
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strftime(buffer, n, ((starttimewall > time(NULL) - 86400) ? "%R " : "%b%d "), &date);
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break;
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}
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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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@ -428,6 +439,12 @@ long LinuxProcess_compare(const void* v1, const void* v2) {
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case CUTIME: diff = p2->cutime - p1->cutime; goto test_diff;
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case STIME: diff = p2->stime - p1->stime; goto test_diff;
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case CSTIME: diff = p2->cstime - p1->cstime; goto test_diff;
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case STARTTIME: {
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if (p1->starttime == p2->starttime)
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return (p1->super.pid - p2->super.pid);
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else
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return (p1->starttime - p2->starttime);
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}
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#ifdef HAVE_TASKSTATS
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case RCHAR: diff = p2->io_rchar - p1->io_rchar; goto test_diff;
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case WCHAR: diff = p2->io_wchar - p1->io_wchar; goto test_diff;
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@ -98,6 +98,7 @@ typedef struct LinuxProcess_ {
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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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unsigned long long starttime;
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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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@ -143,6 +144,8 @@ typedef struct LinuxProcess_ {
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#endif
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long long btime; /* semi-global */
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extern ProcessFieldData Process_fields[];
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extern ProcessPidColumn Process_pidColumns[];
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@ -47,6 +47,8 @@ in the source distribution for its full text.
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#include "ProcessList.h"
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extern long long btime;
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typedef struct CPUData_ {
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unsigned long long int totalTime;
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unsigned long long int userTime;
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@ -111,7 +113,7 @@ typedef struct LinuxProcessList_ {
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#endif
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#ifndef PROC_LINE_LENGTH
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#define PROC_LINE_LENGTH 512
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#define PROC_LINE_LENGTH 4096
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#endif
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}*/
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@ -230,8 +232,8 @@ static void LinuxProcessList_initNetlinkSocket(LinuxProcessList* this) {
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ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
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LinuxProcessList* this = xCalloc(1, sizeof(LinuxProcessList));
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ProcessList* pl = &(this->super);
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ProcessList_init(pl, Class(LinuxProcess), usersTable, pidWhiteList, userId);
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LinuxProcessList_initTtyDrivers(this);
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#ifdef HAVE_DELAYACCT
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@ -243,13 +245,19 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
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if (file == NULL) {
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CRT_fatalError("Cannot open " PROCSTATFILE);
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}
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char buffer[PROC_LINE_LENGTH + 1];
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int cpus = -1;
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do {
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cpus++;
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char * s = fgets(buffer, PROC_LINE_LENGTH, file);
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(void) s;
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} while (String_startsWith(buffer, "cpu"));
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char buffer[PROC_LINE_LENGTH + 1];
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if (fgets(buffer, PROC_LINE_LENGTH + 1, file) == NULL) {
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CRT_fatalError("No btime in " PROCSTATFILE);
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} else if (String_startsWith(buffer, "cpu")) {
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cpus++;
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} else if (String_startsWith(buffer, "btime ")) {
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sscanf(buffer, "btime %lld\n", &btime);
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break;
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}
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} while(true);
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fclose(file);
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pl->cpuCount = MAX(cpus - 1, 1);
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@ -259,7 +267,6 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
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this->cpus[i].totalTime = 1;
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this->cpus[i].totalPeriod = 1;
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}
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return pl;
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}
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@ -355,7 +362,10 @@ static bool LinuxProcessList_readStatFile(Process *process, const char* dirname,
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location += 1;
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process->nlwp = strtol(location, &location, 10);
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location += 1;
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for (int i=0; i<17; i++) location = strchr(location, ' ')+1;
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location = strchr(location, ' ')+1;
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lp->starttime = strtoll(location, &location, 10);
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location += 1;
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for (int i=0; i<15; i++) location = strchr(location, ' ')+1;
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process->exit_signal = strtol(location, &location, 10);
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location += 1;
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assert(location != NULL);
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@ -377,13 +387,6 @@ static bool LinuxProcessList_statProcessDir(Process* process, const char* dirnam
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if (statok == -1)
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return false;
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process->st_uid = sstat.st_uid;
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struct tm date;
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time_t ctime = sstat.st_ctime;
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process->starttime_ctime = ctime;
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(void) localtime_r((time_t*) &ctime, &date);
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strftime(process->starttime_show, 7, ((ctime > curTime - 86400) ? "%R " : "%b%d "), &date);
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return true;
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}
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@ -20,6 +20,8 @@ in the source distribution for its full text.
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#include "ProcessList.h"
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extern long long btime;
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typedef struct CPUData_ {
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unsigned long long int totalTime;
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unsigned long long int userTime;
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@ -84,7 +86,7 @@ typedef struct LinuxProcessList_ {
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#endif
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#ifndef PROC_LINE_LENGTH
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#define PROC_LINE_LENGTH 512
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#define PROC_LINE_LENGTH 4096
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#endif
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