"Fossies" - the Fresh Open Source Software Archive

Member "xosview-1.23/sunos5/memmeter.cc" (11 Jul 2020, 2851 Bytes) of package /linux/misc/xosview-1.23.tar.gz:

    1 //  
    2 //  Initial port performed by Greg Onufer (exodus@cheers.bungi.com)
    3 //
    4 
    5 #include "memmeter.h"
    6 #include "kstats.h"
    7 #include <unistd.h>
    8 #include <stdlib.h>
    9 #include <iostream>
   10 
   11 
   12 MemMeter::MemMeter(XOSView *parent, kstat_ctl_t *_kc)
   13     : FieldMeterGraph(parent, 4, "MEM", "SYS/ZFS/OTHER/FREE")
   14 {
   15     kc = _kc;
   16     pageSize = sysconf(_SC_PAGESIZE);
   17     total_ = sysconf(_SC_PHYS_PAGES);
   18 
   19     ksp_sp = kstat_lookup(kc, "unix", 0, "system_pages");
   20     ksp_zfs = kstat_lookup(kc, "vmem", -1, "zfs_file_data_buf");
   21     if (ksp_sp == NULL) { // ZFS cache may be missing
   22         std::cerr << "Can not find unix:0:system_pages kstat." << std::endl;
   23         parent_->done(1);
   24         return;
   25     }
   26 }
   27 
   28 void MemMeter::checkResources(void)
   29 {
   30     FieldMeterGraph::checkResources();
   31 
   32     setfieldcolor(0, parent_->getResource("memKernelColor"));
   33     setfieldcolor(1, parent_->getResource("memCacheColor"));
   34     setfieldcolor(2, parent_->getResource("memUsedColor"));
   35     setfieldcolor(3, parent_->getResource("memFreeColor"));
   36     priority_ = atoi(parent_->getResource("memPriority"));
   37     dodecay_ = parent_->isResourceTrue("memDecay");
   38     useGraph_ = parent_->isResourceTrue("memGraph");
   39     SetUsedFormat(parent_->getResource("memUsedFormat"));
   40 }
   41 
   42 MemMeter::~MemMeter(void)
   43 {
   44 }
   45 
   46 void MemMeter::checkevent(void)
   47 {
   48     getmeminfo();
   49     drawfields();
   50 }
   51 
   52 void MemMeter::getmeminfo(void)
   53 {
   54     kstat_named_t *k;
   55 
   56     fields_[1] = 0;
   57     if (ksp_zfs) {
   58         if (kstat_read(kc, ksp_zfs, NULL) == -1) {
   59             std::cerr << "Can not read vmem::zfs_file_data_buf kstat." << std::endl;
   60             parent_->done(1);
   61             return;
   62         }
   63         k = (kstat_named_t *)kstat_data_lookup(ksp_zfs, "mem_inuse");
   64         if (k == NULL) {
   65             std::cerr << "Can not read vmem::zfs_file_data_buf:mem_inuse kstat." << std::endl;
   66             parent_->done(1);
   67             return;
   68         }
   69         fields_[1] = kstat_to_double(k) / pageSize;
   70     }
   71 
   72     if (kstat_read(kc, ksp_sp, NULL) == -1) {
   73         std::cerr << "Can not read unix:0:system_pages kstat." << std::endl;
   74         parent_->done(1);
   75         return;
   76     }
   77     k = (kstat_named_t *)kstat_data_lookup(ksp_sp, "pp_kernel");
   78     if (k == NULL) {
   79         std::cerr << "Can not read unix:0:system_pages:pp_kernel kstat." << std::endl;
   80         parent_->done(1);
   81         return;
   82     }
   83     fields_[0] = kstat_to_double(k) - fields_[1];
   84     k = (kstat_named_t *)kstat_data_lookup(ksp_sp, "freemem");
   85     if (k == NULL) {
   86         std::cerr << "Can not read unix:0:system_pages:freemem kstat." << std::endl;
   87         parent_->done(1);
   88         return;
   89     }
   90     fields_[3] = kstat_to_double(k);
   91     fields_[2] = total_ - (fields_[0] + fields_[1] + fields_[3]);
   92 
   93     XOSDEBUG("kernel: %llu kB zfs: %llu kB other: %llu kB free: %llu kB\n",
   94              (unsigned long long)(fields_[0] * pageSize / 1024),
   95              (unsigned long long)(fields_[1] * pageSize / 1024),
   96              (unsigned long long)(fields_[2] * pageSize / 1024),
   97              (unsigned long long)(fields_[3] * pageSize / 1024));
   98 
   99     setUsed((fields_[0] + fields_[1] + fields_[2]) * pageSize, total_ * pageSize);
  100 }
  101