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Solaris: condense separate process vs lwp handling down to a single workflow
This commit is contained in:
Guy M. Broome
Hisham Muhammad
parent
45fad05b4a
commit
7f40a3a5af
@ -15,13 +15,11 @@ in the source distribution for its full text.
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#include <sys/types.h>
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#include <sys/user.h>
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#include <err.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <string.h>
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#include <procfs.h>
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#include <errno.h>
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#include <pwd.h>
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#include <dirent.h>
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#include <math.h>
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#include <time.h>
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@ -238,139 +236,96 @@ void ProcessList_delete(ProcessList* this) {
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free(this);
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}
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void ProcessList_enumerateLWPs(Process* proc, ProcessList* pl, lwpsinfo_t *_lwpsinfo, struct timeval tv) {
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Process *lwp;
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SolarisProcess *slwp;
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SolarisProcess *sproc = (SolarisProcess*) proc;
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id_t lwpid_real;
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pid_t lwpid;
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bool preExisting = false;
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struct tm date;
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// With 10 bits to spare, we can only list up to 1023 unique LWPs per process
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lwpid_real = _lwpsinfo->pr_lwpid;
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if (lwpid_real > 1023) return;
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lwpid = proc->pid + lwpid_real;
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lwp = ProcessList_getProcess(pl, lwpid, &preExisting, (Process_New) SolarisProcess_new);
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slwp = (SolarisProcess*) lwp;
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// Common items set for both new and refreshed LWPs
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slwp->zoneid = sproc->zoneid;
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lwp->percent_cpu = ((uint16_t)_lwpsinfo->pr_pctcpu/(double)32768)*(double)100.0;
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lwp->pgrp = proc->pgrp;
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lwp->st_uid = proc->st_uid;
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lwp->user = UsersTable_getRef(pl->usersTable, lwp->st_uid);
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lwp->session = proc->session;
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lwp->comm = xStrdup(proc->comm);
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lwp->commLen = strnlen(proc->comm,PRFNSZ);
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slwp->zname = sproc->zname;
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lwp->tty_nr = proc->tty_nr;
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lwp->priority = _lwpsinfo->pr_pri;
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lwp->nice = _lwpsinfo->pr_nice;
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lwp->processor = _lwpsinfo->pr_onpro;
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lwp->state = _lwpsinfo->pr_sname;
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lwp->time = _lwpsinfo->pr_time.tv_sec;
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slwp->taskid = sproc->taskid;
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slwp->projid = sproc->projid;
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slwp->poolid = sproc->poolid;
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slwp->contid = sproc->contid;
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lwp->show = false;
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// Tasks done only for NEW LWPs
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if (!preExisting) {
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slwp->is_lwp = true;
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lwp->basenameOffset = -1;
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slwp->kernel = sproc->kernel;
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// Fake values used for sorting
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// Only set once because threads don't generally
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// move... between... processes.
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lwp->pid = lwpid;
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lwp->ppid = proc->pid;
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lwp->tgid = proc->pid;
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// Corresponding real values used for display
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slwp->realpid = sproc->realpid;
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slwp->realppid = sproc->realpid;
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slwp->lwpid = lwpid_real;
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// Not tracked per thread
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lwp->percent_mem = (double)0.0;
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lwp->nlwp = 0;
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lwp->m_resident = 0;
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lwp->m_size = 0;
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lwp->starttime_ctime = _lwpsinfo->pr_start.tv_sec;
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(void) localtime_r((time_t*) &lwp->starttime_ctime, &date);
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strftime(lwp->starttime_show, 7, ((lwp->starttime_ctime > tv.tv_sec - 86400) ? "%R " : "%b%d "), &date);
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ProcessList_add(pl, lwp);
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}
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// Top-level process only gets this for the representative LWP
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if (lwp->state == 'O') proc->state = 'O';
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if (slwp->kernel && !pl->settings->hideKernelThreads) lwp->show = true;
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if (!slwp->kernel && !pl->settings->hideUserlandThreads) lwp->show = true;
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lwp->updated = true;
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return;
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}
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int SolarisProcessList_walkproc(psinfo_t *_psinfo, lwpsinfo_t *_lwpsinfo, void *listptr) {
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ProcessList *pl = (ProcessList*) listptr;
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SolarisProcessList *spl = (SolarisProcessList*) listptr;
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bool preExisting = false;
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Process *proc = ProcessList_getProcess(pl, _psinfo->pr_pid * 1024, &preExisting, (Process_New) SolarisProcess_new);
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SolarisProcess *sproc = (SolarisProcess*) proc;
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struct timeval tv;
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struct tm date;
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bool preExistingP = false;
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bool preExistingL = false;
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bool preExisting;
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Process *cproc;
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SolarisProcess *csproc;
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// Are we on the representative LWP?
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if (_lwpsinfo->pr_lwpid == _psinfo->pr_lwp.pr_lwpid) {
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// Common items set for both new and refreshed processes
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// Setup process list
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ProcessList *pl = (ProcessList*) listptr;
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SolarisProcessList *spl = (SolarisProcessList*) listptr;
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// Setup Process entry
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Process *proc = ProcessList_getProcess(pl, _psinfo->pr_pid * 1024, &preExistingP, (Process_New) SolarisProcess_new);
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SolarisProcess *sproc = (SolarisProcess*) proc;
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// Setup LWP entry
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id_t lwpid_real = _lwpsinfo->pr_lwpid;
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if (lwpid_real > 1023) return 0;
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pid_t lwpid = proc->pid + lwpid_real;
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Process *lwp = ProcessList_getProcess(pl, lwpid, &preExistingL, (Process_New) SolarisProcess_new);
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SolarisProcess *slwp = (SolarisProcess*) lwp;
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bool onMasterLWP = (_lwpsinfo->pr_lwpid == _psinfo->pr_lwp.pr_lwpid);
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// Determine whether we're updating proc info or LWP info
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// based on whether or not we're on the representative LWP
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// for a given proc
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if (onMasterLWP) {
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cproc = proc;
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csproc = sproc;
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preExisting = preExistingP;
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} else {
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cproc = lwp;
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csproc = slwp;
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preExisting = preExistingL;
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}
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gettimeofday(&tv, NULL);
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// Common code pass 1
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cproc->show = false;
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csproc->zoneid = _psinfo->pr_zoneid;
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csproc->zname = SolarisProcessList_readZoneName(spl->kd,sproc);
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csproc->taskid = _psinfo->pr_taskid;
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csproc->projid = _psinfo->pr_projid;
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csproc->poolid = _psinfo->pr_poolid;
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csproc->contid = _psinfo->pr_contract;
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cproc->priority = _lwpsinfo->pr_pri;
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cproc->nice = _lwpsinfo->pr_nice;
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cproc->processor = _lwpsinfo->pr_onpro;
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cproc->state = _lwpsinfo->pr_sname;
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// This could potentially get bungled if the master LWP is not the first
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// one enumerated. Unaware of any workaround right now.
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if ((cproc->state == 'O') && !onMasterLWP) proc->state = 'O';
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// NOTE: This 'percentage' is a 16-bit BINARY FRACTIONS where 1.0 = 0x8000
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// Source: https://docs.oracle.com/cd/E19253-01/816-5174/proc-4/index.html
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// (accessed on 18 November 2017)
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cproc->percent_mem = ((uint16_t)_psinfo->pr_pctmem/(double)32768)*(double)100.0;
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cproc->st_uid = _psinfo->pr_euid;
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cproc->user = UsersTable_getRef(pl->usersTable, proc->st_uid);
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cproc->pgrp = _psinfo->pr_pgid;
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cproc->nlwp = _psinfo->pr_nlwp;
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cproc->comm = xStrdup(_psinfo->pr_fname);
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cproc->commLen = strnlen(_psinfo->pr_fname,PRFNSZ);
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cproc->tty_nr = _psinfo->pr_ttydev;
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cproc->m_resident = _psinfo->pr_rssize/PAGE_SIZE_KB;
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cproc->m_size = _psinfo->pr_size/PAGE_SIZE_KB;
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if (!preExisting) {
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csproc->realpid = _psinfo->pr_pid;
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csproc->lwpid = lwpid_real;
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}
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// End common code pass 1
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if (onMasterLWP) { // Are we on the representative LWP?
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proc->ppid = (_psinfo->pr_ppid * 1024);
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proc->tgid = (_psinfo->pr_ppid * 1024);
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sproc->realppid = _psinfo->pr_ppid;
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sproc->zoneid = _psinfo->pr_zoneid;
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sproc->zname = SolarisProcessList_readZoneName(spl->kd,sproc);
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// NOTE: These 'percentages' are 16-bit BINARY FRACTIONS where 1.0 = 0x8000
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// Source: https://docs.oracle.com/cd/E19253-01/816-5174/proc-4/index.html
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// (accessed on 18 November 2017)
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// See note above (in common section) about this BINARY FRACTION
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proc->percent_cpu = ((uint16_t)_psinfo->pr_pctcpu/(double)32768)*(double)100.0;
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proc->percent_mem = ((uint16_t)_psinfo->pr_pctmem/(double)32768)*(double)100.0;
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proc->st_uid = _psinfo->pr_euid;
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proc->user = UsersTable_getRef(pl->usersTable, proc->st_uid);
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proc->pgrp = _psinfo->pr_pgid;
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proc->nlwp = _psinfo->pr_nlwp;
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proc->comm = xStrdup(_psinfo->pr_fname);
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proc->commLen = strnlen(_psinfo->pr_fname,PRFNSZ);
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proc->tty_nr = _psinfo->pr_ttydev;
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proc->m_resident = _psinfo->pr_rssize/PAGE_SIZE_KB;
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proc->m_size = _psinfo->pr_size/PAGE_SIZE_KB;
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proc->priority = _psinfo->pr_lwp.pr_pri;
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proc->nice = _psinfo->pr_lwp.pr_nice;
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proc->processor = _psinfo->pr_lwp.pr_onpro;
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proc->state = _psinfo->pr_lwp.pr_sname;
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proc->time = _psinfo->pr_time.tv_sec;
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sproc->taskid = _psinfo->pr_taskid;
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sproc->projid = _psinfo->pr_projid;
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sproc->poolid = _psinfo->pr_poolid;
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sproc->contid = _psinfo->pr_contract;
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// Tasks done only for NEW processes
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if(!preExisting) {
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if(!preExisting) { // Tasks done only for NEW processes
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sproc->is_lwp = false;
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// Fake PID values used for sorting, since Solaris LWPs lack unique PIDs
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proc->pid = (_psinfo->pr_pid * 1024);
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// Corresponding real values used for display
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sproc->realpid = _psinfo->pr_pid;
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sproc->lwpid = 1;
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proc->starttime_ctime = _psinfo->pr_start.tv_sec;
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if ((sproc->realppid <= 0) && !(sproc->realpid <= 1)) {
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sproc->kernel = true;
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} else {
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sproc->kernel = false;
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}
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(void) localtime_r((time_t*) &proc->starttime_ctime, &date);
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strftime(proc->starttime_show, 7, ((proc->starttime_ctime > tv.tv_sec - 86400) ? "%R " : "%b%d "), &date);
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ProcessList_add(pl, proc);
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}
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// Update proc and thread counts based on settings
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if (sproc->kernel && !pl->settings->hideKernelThreads) {
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pl->kernelThreads += proc->nlwp;
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pl->totalTasks += proc->nlwp+1;
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@ -385,11 +340,39 @@ int SolarisProcessList_walkproc(psinfo_t *_psinfo, lwpsinfo_t *_lwpsinfo, void *
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}
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}
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proc->show = !(pl->settings->hideKernelThreads && sproc->kernel);
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proc->updated = true;
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} else {
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// We are not in the rep. LWP, so jump to the LWP handling code
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ProcessList_enumerateLWPs(proc, pl, _lwpsinfo, tv);
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} else { // We are not in the master LWP, so jump to the LWP handling code
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lwp->percent_cpu = ((uint16_t)_lwpsinfo->pr_pctcpu/(double)32768)*(double)100.0;
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lwp->time = _lwpsinfo->pr_time.tv_sec;
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if (!preExisting) { // Tasks done only for NEW LWPs
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slwp->is_lwp = true;
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lwp->basenameOffset = -1;
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lwp->ppid = proc->pid;
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lwp->tgid = proc->pid;
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slwp->realppid = sproc->realpid;
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lwp->starttime_ctime = _lwpsinfo->pr_start.tv_sec;
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}
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// Top-level process only gets this for the representative LWP
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if (slwp->kernel && !pl->settings->hideKernelThreads) lwp->show = true;
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if (!slwp->kernel && !pl->settings->hideUserlandThreads) lwp->show = true;
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} // Top-level LWP or subordinate LWP
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// Common code pass 2
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if (!preExisting) {
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if ((sproc->realppid <= 0) && !(sproc->realpid <= 1)) {
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csproc->kernel = true;
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} else {
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csproc->kernel = false;
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}
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(void) localtime_r((time_t*) &cproc->starttime_ctime, &date);
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strftime(cproc->starttime_show, 7, ((cproc->starttime_ctime > tv.tv_sec - 86400) ? "%R " : "%b%d "), &date);
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ProcessList_add(pl, cproc);
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}
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cproc->updated = true;
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// End common code pass 2
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return 0;
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}
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@ -397,6 +380,6 @@ void ProcessList_goThroughEntries(ProcessList* this) {
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SolarisProcessList_scanCPUTime(this);
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SolarisProcessList_scanMemoryInfo(this);
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this->kernelThreads = 1;
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proc_walk( &SolarisProcessList_walkproc, this, PR_WALK_LWP );
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proc_walk(&SolarisProcessList_walkproc, this, PR_WALK_LWP);
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}
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@ -50,8 +50,6 @@ ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, ui
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void ProcessList_delete(ProcessList* this);
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void ProcessList_enumerateLWPs(Process* proc, ProcessList* pl, lwpsinfo_t *_lwpsinfo, struct timeval tv);
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int SolarisProcessList_walkproc(psinfo_t *_psinfo, lwpsinfo_t *_lwpsinfo, void *listptr);
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void ProcessList_goThroughEntries(ProcessList* this);
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