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com.gemstone.gemfire.internal.HostStatHelperOSX.c Maven / Gradle / Ivy

/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License. You
 * may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License. See accompanying
 * LICENSE file.
 */
#define HOSTSTATSOSX_C 1
/*========================================================================
 *
 * Description:  Mac OS X Implementation of code to fetch operating system stats.
 *
 * 

 *
 *
 *========================================================================
 */
#include "flag.ht"
#define index work_around_gcc_bug
#include "jni.h"
#undef index

/* this file is an empty compilation on non-OSX platforms */
#if defined(FLG_OSX_UNIX)
/*******  GemStone constants/types defined in this and other modules ********/
#include 
#include 
#include 
#include 
#include 
//#include 
#include 
#include  // LLONG_MAX

#include "global.ht"
#include "host.hf"
#include "utl.hf"
#define index work_around_gcc_bug
#include "com_gemstone_gemfire_internal_HostStatHelper.h"
#include "com_gemstone_gemfire_internal_OSXProcessStats.h"
#include "com_gemstone_gemfire_internal_OSXSystemStats.h"
#undef index
/* no more includes. KEEP THIS LINE */

typedef struct {
  int64 activeTime;    /* user time + system time */  /* linux */
  int32 userTime;       /* user time used */  /* linux */
  int32 sysTime;        /* system time used */  /* linux */
  int32 imageSize;      /* size of process image in megabytes */ /* linux vsize*/
  int32 rssSize;        /* resident set size in megabytes */  /* linux rss */
} HostRUsageSType;

//static int32 osxPageSize = 0;

static uint32 memSizeToMB(uint32 aSize, int32 page_size) {
  int64 result = aSize;
  result = (result * page_size ) / (1024 * 1024) ;
  return (uint32)result; 
}

/* get the system statistics for the specified process. ( cpu time, page
   faults etc. Look at the description of HostRUsageSType for a detailed
   explanation ). the members of the struct may be zero on platforms that
   do not provide information about specific fields .
*/
//static BoolType getHrUsage(PidType thePid, HostRUsageSType *hrUsage)
//{
//  char procFileName[64];
//  FILE* fPtr;
//
//  int pid = 0;
//  char commandLine[100]; 
//  commandLine[0] = '\0';
//  commandLine[sizeof(commandLine) - 1] = '\0';
//  char state = 0;
//  uint32 userTime = 0;
//  uint32 sysTime = 0;
//  uint32 vsize = 0;
//  int32  rss = 0;
//
//  memset(hrUsage, 0, sizeof(HostRUsageSType)); /* fix for bug 28668 */
//
//#if 1
//  sprintf(procFileName, "/proc/%lu/stat", (uint32)thePid);
//  fPtr = fopen(procFileName, "r" ); /* read only */ 
//  if (fPtr != NULL) {
//    int status = fscanf(fPtr, 
//"%d %100s %c %*d %*d %*d %*d %*d %*u %*u 
//%*u %*u %*u %lu %lu %*d %*d %*d %*d %*d %*d %*u %lu %ld ",
//                &pid,
//                &commandLine[0],
//                &state,
//                // ppid,
//                // pgrp,
//                // session,
//                // tty_nr, 
//                // tty_pgrp, 
//                // flags,
//                // min_flt,   // end first line of format string
//
//                // cmin_flt,
//                // maj_flt,
//                // cmaj_flt,
//                &userTime,  // task->times.tms_utime,
//                &sysTime, // task->times.tms_stime,
//                // deadChildUtime, // task->times.tms_cutime,
//                // deadChildSysTime, // task->times.tms_cstime, 
//                // priority,
//                // nice,
//                // unused1, // 0UL /* removed */,
//                // it_real_value,
//                // start_time, 
//                &vsize,
//                &rss  //  mm ? mm->rss : 0, /* you might want to shift this left 3 */
//                );
//    // expect 7 conversions  or possibly EOF if the process no longer exists
//    if (status != 7 && status != EOF ) {  
//      int errNum = errno; // for debugging
//      errNum = errNum; // lint
//      UTL_ASSERT(status == 7);
//    }
//    status = fclose(fPtr);
//    if (status) {
//      int errNum = errno; // for debugging
//      errNum = errNum; // lint
//      UTL_ASSERT(status == 0);
//    }
//  }
//
//#endif
//#if 0
//  int32 linuxTimeToMs = 1000 / HZ ;
//  UTL_ASSERT( linuxTimeToMs == 10 );
//
//  hrUsage->userTime = userTime * linuxTimeToMs ;
//  hrUsage->sysTime  = sysTime * linuxTimeToMs ;
//  hrUsage->activeTime = hrUsage->sysTime;
//  hrUsage->activeTime += hrUsage->userTime;
//#endif
//  hrUsage->imageSize = vsize / (1024*1024);  // assume linux units = Kbytes
//  if (osxPageSize == 0) {
//    struct sysinfo info;
//    int status = sysinfo(&info);
//    if (status == 0) {
//      osxPageSize = info.mem_unit;
//    }
//  }
//  hrUsage->rssSize = memSizeToMB(rss, osxPageSize); // assume linux units = Kbytes
//      
//  return TRUE;
//}


static void refreshProcess(jint pidArg, int32* intStorage, int64* longStorage, double* doubleStorage)
{
//#define INT_FIELD_STORE(field, value) 
//    (intStorage[com_gemstone_gemfire_internal_LinuxProcessStats_##field##INT] = value)
//#define LONG_FIELD_STORE(field, value) 
//    (longStorage[com_gemstone_gemfire_internal_LinuxProcessStats_##field##LONG] = value)
//#define DOUBLE_FIELD_STORE(field, value) 
//    (doubleStorage[com_gemstone_gemfire_internal_LinuxProcessStats_##field##DOUBLE] = value)
//#define FLOAT_FIELD_STORE(field, value) 
//    DOUBLE_FIELD_STORE(field, (double)(value))
//
//  HostRUsageSType hrUsage;
//  if (getHrUsage(pidArg, &hrUsage)) {
//#if 0
//    printf("DEBUG: pid=%d activeTime="FMT_I64"\n", pid, hrUsage.activeTime); fflush(stdout);
//#endif
//#if 0
//    LONG_FIELD_STORE(activeTime, hrUsage.activeTime);
//    INT_FIELD_STORE(systemTime, hrUsage.sysTime);
//    INT_FIELD_STORE(userTime, hrUsage.userTime);
//#endif
//    INT_FIELD_STORE(imageSize, hrUsage.imageSize);
//    INT_FIELD_STORE(rssSize, hrUsage.rssSize);
//  } else {
//    // It might just be a case of the process going away while we
//    // where trying to get its stats. So a simple exception throw
//    // here would be the wrong thing.
//    // So for now lets just ignore the failure and leave the stats
//    // as they are.
//  }
//#undef INT_FIELD_STORE
//#undef LONG_FIELD_STORE
//#undef FLOAT_FIELD_STORE
//#undef DOUBLE_FIELD_STORE
}

enum {
  // 64-bit operands

  SYSTEM_NET_LOOPBACK_PACKETS,
  SYSTEM_NET_LOOPBACK_BYTES,
  SYSTEM_NET_RECV_PACKETS,
  SYSTEM_NET_RECV_BYTES,
  SYSTEM_NET_RECV_ERRS,
  SYSTEM_NET_RECV_DROP,
  SYSTEM_NET_XMIT_PACKETS,
  SYSTEM_NET_XMIT_BYTES,
  SYSTEM_NET_XMIT_ERRS,
  SYSTEM_NET_XMIT_DROP,
  SYSTEM_NET_XMIT_COLL,

  SYSTEM_LONGDATA_SIZE // must be last
  };

enum {
  // Now for the 32-bit operands
  SYSTEM_CPUIDLE,
  SYSTEM_CPUNICE,
  SYSTEM_CPUSYSTEM,
  SYSTEM_CPUUSER,
  SYSTEM_CPUCOUNT,
  SYSTEM_PROCCOUNT,
  SYSTEM_LOADAV1,
  SYSTEM_LOADAV5,
  SYSTEM_LOADAV15,
  SYSTEM_PHYSMEM,
  SYSTEM_FREEMEM,
  SYSTEM_BUFFERMEM,
  SYSTEM_SHAREDMEM,
  SYSTEM_ALLOCSWAP,
  SYSTEM_UNALLOCSWAP,
  SYSTEM_PAGEINS,
  SYSTEM_PAGEOUTS,
  SYSTEM_SWAPINS,
  SYSTEM_SWAPOUTS,
  SYSTEM_CTXT,
  SYSTEM_PROCESSCREATES,

  SYSTEM_DATA_SIZE /* must be last */
};



//static uint32 floatBits(float fArg)
//{
//  typedef union {
//    float f;
//    uint32 l;
//  } fb_u;
//  fb_u fb;
//  /* convert to float so we have 32 bits */
//  /* we can't just cast to (uint32) because a float to int conversion
//   * is done by the cast.
//   */
//  fb.f = fArg;
//  return fb.l;
//}
//
//// SI_LOAD_SHIFT comes from kernel.h
//#define FSCALE  (1 << SI_LOAD_SHIFT)
//
//static uint32 loadAvgFilter(uint32 v) {
//  return floatBits((double)v / FSCALE);
//}
//
//static float cvtFloatBits(uint32 bits) {
//  union {
//    uint32 i;
//    float  f;
//  } u;
//  u.i = bits;
//  return u.f;
//}

//enum {
//  CPU_STAT_IDLE,
//  CPU_STAT_USER,
//  CPU_STAT_SYSTEM,
//  CPU_STAT_NICE,
//  MAX_CPU_STATS
//};
//static int lastCpuStatsInvalid = 1;
//static uint32 lastCpuStats[MAX_CPU_STATS];
//
///*
// * Fill in statistics in case of error
// * @see getNetStats
// */
//static void zeroNetStats(uint64 lsd[]) {
//  lsd[SYSTEM_NET_LOOPBACK_PACKETS] = 0;
//  lsd[SYSTEM_NET_RECV_PACKETS] = 0;
//  lsd[SYSTEM_NET_RECV_BYTES] = 0;
//  lsd[SYSTEM_NET_RECV_ERRS] = 0;
//  lsd[SYSTEM_NET_RECV_DROP] = 0;
//  lsd[SYSTEM_NET_XMIT_PACKETS] =  0;
//  lsd[SYSTEM_NET_XMIT_BYTES] =  0;
//  lsd[SYSTEM_NET_XMIT_ERRS] = 0;
//  lsd[SYSTEM_NET_XMIT_DROP] = 0;
//  lsd[SYSTEM_NET_XMIT_COLL] = 0;
//  }
//
///*
// * Locate end of a numeral, starting at the given position in
// * the input string. The first non-numeric character is returned.
// *
// * @see getNumeral
// */
//static const char *advanceNumeral(const char *start) {
//  const char *result=start;
//  /* skip leading white space */
//  while (isspace(*result))
//    result ++;
//  while (isdigit(*result))
//    result ++;
//  return result;
//  }
//
///*
// * Flippin' sscanf is not powerful enough.  I've been
// * writing Java too long...
// *
// * *end is initially the position to start parsing the numeral.
// * **end is returned, indicating the next place to start parsing.
// *
// * @see getNetStats
// */
//static uint64 getNumeral(const char **end) {
//  uint64 result;
//  const char *start = *end;
//  const char *p;
//
//  while (isspace(*start) && *start != '\0')
//    start ++;
//  if (*start == '\0') {
//#ifdef FLG_DEBUG
//    fprintf(stderr, "getNumeral called at end of line\n");
//#endif
//    return 0; /* error */
//    }
//
//  *end = advanceNumeral(start);
//  if (*end == start) {
//#ifdef FLG_DEBUG
//    fprintf(stderr, "getNumeral called when not at a numeral\n");
//#endif
//    return 0; /* error */
//    }
//
//  result = 0;
//  for (p = start; p < *end;  p ++) {
//    result *= (uint64)10;
//    result += (uint64)(*p - '0');
//    }
//  return result;
//  }
//
///*
// * Garner statistics from /proc/net/dev
// */
//static void getNetStats(uint64 lsd[]) {
//  uint64 total_recv_packets = 0;
//  uint64 total_recv_bytes = 0;
//  uint64 total_recv_errs = 0;
//  uint64 total_recv_drop = 0;
//  uint64 total_xmit_packets = 0;
//  uint64 total_xmit_bytes = 0;
//  uint64 total_xmit_errs = 0;
//  uint64 total_xmit_drop = 0;
//  uint64 total_xmit_colls = 0;
//
//  /* recv and xmit loopback packets are equal, so we only collect one. */
//  uint64 loopback_packets = 0;
//  uint64 loopback_bytes = 0;
//
//  int is_loopback;
//  char ifname[6];
//  uint64 recv_packets;
//  uint64 recv_bytes;
//  uint64 recv_errs;
//  uint64 recv_drop;
//  uint64 xmit_packets;
//  uint64 xmit_bytes;
//  uint64 xmit_errs;
//  uint64 xmit_drop;
//  uint64 xmit_colls;
//
//  char line[512];
//  const char *ptr;
//  const char *junk;
//
//  FILE *f = fopen("/proc/net/dev", "r");
//  if (f == NULL) {
//#ifdef FLG_DEBUG
//    fprintf(stderr, "Could not open /proc/net/dev: %s\n", strerror(errno));
//#endif
//    zeroNetStats(lsd);
//    return;
//    }
//
//  if (fgets(line, sizeof line, f) == NULL) {
//#ifdef FLG_DEBUG
//    fprintf(stderr, "/proc/net/dev: First line could not be read\n");
//#endif
//    zeroNetStats(lsd);
//    fclose(f);
//    return;
//    }
//  if (fgets(line, sizeof line, f) == NULL) {
//#ifdef FLG_DEBUG
//    fprintf(stderr, "/proc/net/dev: Second line could not be read\n");
//    fclose(f);
//#endif
//    zeroNetStats(lsd);
//    return;
//    }
//
//  for (;;) {
//    if (fgets(line, sizeof line, f) == NULL) {
//      /* no more devices */
//      break;
//      }
//
///*
//Inter-|   Receive                                                |  Transmit
// face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
//    lo:1908275823 326949246    0    0    0     0          0         0 1908275823 326949246    0    0    0     0       0          0
//*/
//
//    /* ifname */
//    ptr = &line[0];
//    while (isspace(*ptr))
//      ptr ++;
//    if (*ptr == '\0') {
//#ifdef FLG_DEBUG
//      fprintf(stderr, "No interface name in /proc/net/dev\n");
//#endif
//      zeroNetStats(lsd); // don't trust anything
//      return;
//      }
//    junk = strchr(ptr, ':');
//    if (junk == NULL) {
//#ifdef FLG_DEBUG
//      fprintf(stderr, "No interface name colon in /proc/net/dev\n");
//#endif
//      zeroNetStats(lsd); // don't trust anything
//      return;
//      }
//    memset(ifname, 0, sizeof ifname);
//    memcpy(ifname, ptr, junk - ptr);
//
//    is_loopback = strcmp(ifname, "lo") == 0;
//
//    ptr = junk + 1; /* skip the colon */
//
//    recv_bytes = getNumeral(&ptr);
//    recv_packets = getNumeral(&ptr);
//    recv_errs = getNumeral(&ptr);
//    recv_drop = getNumeral(&ptr);
//    getNumeral(&ptr); /* fifo */
//    getNumeral(&ptr); /* frame */
//    getNumeral(&ptr); /* compressed */
//    getNumeral(&ptr); /* multicast */
//
//    xmit_bytes = getNumeral(&ptr); /* bytes */
//    xmit_packets = getNumeral(&ptr);
//    xmit_errs = getNumeral(&ptr);
//    xmit_drop = getNumeral(&ptr);
//    getNumeral(&ptr); /* fifo */
//    xmit_colls = getNumeral(&ptr);
//    /* discard remainder of line */
//
//#if 0
//    printf("%s: recv_packets = %llu, recv_errs = %llu, recv_drop = %llu, xmit_packets = %llu, xmit_errs = %llu, xmit_drop = %llu, xmit_colls = %llu\n",
//        ifname, recv_packets, recv_errs, recv_drop,
//        xmit_packets, xmit_errs, xmit_drop, xmit_colls);
//#endif
//
//    if (is_loopback) {
//      loopback_packets = recv_packets;
//      loopback_bytes = recv_bytes;
//      }
//    else {
//      total_recv_packets += recv_packets;
//      total_recv_bytes += recv_bytes;
//      }
//    total_recv_errs += recv_errs;
//    total_recv_drop += recv_drop;
//
//    if (is_loopback) {
//      /* loopback_xmit_packets = xmit_packets; */
//      }
//    else {
//      total_xmit_packets += xmit_packets;
//      total_xmit_bytes += xmit_bytes;
//      }
//    total_xmit_errs += xmit_errs;
//    total_xmit_drop += xmit_drop;
//    total_xmit_colls += xmit_colls;
//    }
//
//    fclose(f);
//#if 0
//  printf("\nloopback_packets = %llu, recv_packets = %llu, recv_errs = %llu, recv_drop = %llu, xmit_packets = %llu, xmit_errs = %llu, xmit_drop = %llu, xmit_colls = %llu\n",
//      loopback_packets, 
//      total_recv_packets, total_recv_errs, total_recv_drop,
//      total_xmit_packets, total_xmit_errs, total_xmit_drop, total_xmit_colls);
//#endif
//
//  lsd[SYSTEM_NET_LOOPBACK_PACKETS] = loopback_packets;
//  lsd[SYSTEM_NET_LOOPBACK_BYTES] = loopback_bytes;
//  lsd[SYSTEM_NET_RECV_PACKETS] = total_recv_packets;
//  lsd[SYSTEM_NET_RECV_BYTES] = total_recv_bytes;
//  lsd[SYSTEM_NET_RECV_ERRS] = total_recv_errs;
//  lsd[SYSTEM_NET_RECV_DROP] = total_recv_drop;
//  lsd[SYSTEM_NET_XMIT_PACKETS] =  total_xmit_packets;
//  lsd[SYSTEM_NET_XMIT_BYTES] =  total_xmit_bytes;
//  lsd[SYSTEM_NET_XMIT_ERRS] = total_xmit_errs;
//  lsd[SYSTEM_NET_XMIT_DROP] = total_xmit_drop;
//  lsd[SYSTEM_NET_XMIT_COLL] = total_xmit_colls;
//  }

static void refreshSystem(int32* intStorage, int64* longStorage, double* doubleStorage)
{
//#define INT_FIELD_STORE(field, value) 
//    (intStorage[com_gemstone_gemfire_internal_LinuxSystemStats_##field##INT] = value)
//#define LONG_FIELD_STORE(field, value) 
//    (longStorage[com_gemstone_gemfire_internal_LinuxSystemStats_##field##LONG] = value)
//#define DOUBLE_FIELD_STORE(field, value) 
//    (doubleStorage[com_gemstone_gemfire_internal_LinuxSystemStats_##field##DOUBLE] = value)
//#define FLOAT_FIELD_STORE(field, value) 
//    DOUBLE_FIELD_STORE(field, (double)(value))
//
//
//    uint32 sd[SYSTEM_DATA_SIZE];
//    uint64 lsd[SYSTEM_LONGDATA_SIZE];
//
//    sd[SYSTEM_CPUCOUNT] = sysconf(_SC_NPROCESSORS_ONLN);
//
//    // following from sysinfo
//    { struct sysinfo info;
//      int status = sysinfo(&info);
//      if (status == 0) {
//        osxPageSize = info.mem_unit;
//        sd[SYSTEM_LOADAV1] =  loadAvgFilter(info.loads[0]);
//        sd[SYSTEM_LOADAV5] =  loadAvgFilter(info.loads[1]);
//        sd[SYSTEM_LOADAV15] = loadAvgFilter(info.loads[2]);
//        sd[SYSTEM_PHYSMEM] = memSizeToMB(info.totalram, info.mem_unit);
//        sd[SYSTEM_FREEMEM] = memSizeToMB(info.freeram, info.mem_unit); 
//        sd[SYSTEM_SHAREDMEM] = memSizeToMB(info.sharedram, info.mem_unit);
//        sd[SYSTEM_BUFFERMEM] = memSizeToMB(info.bufferram, info.mem_unit);
//        sd[SYSTEM_UNALLOCSWAP] = memSizeToMB(info.freeswap, info.mem_unit);
//        sd[SYSTEM_ALLOCSWAP] = memSizeToMB(info.totalswap - info.freeswap, info.mem_unit);
//        sd[SYSTEM_PROCCOUNT] = info.procs ;
//      } else {
//        UTL_ASSERT(0);
//        sd[SYSTEM_LOADAV1] = 0;
//        sd[SYSTEM_LOADAV5] = 0;
//        sd[SYSTEM_LOADAV15] = 0;
//        sd[SYSTEM_PHYSMEM] = 0;
//        sd[SYSTEM_FREEMEM] = 0;
//        sd[SYSTEM_SHAREDMEM] = 0;
//        sd[SYSTEM_BUFFERMEM] = 0;
//        sd[SYSTEM_UNALLOCSWAP] = 0;
//        sd[SYSTEM_ALLOCSWAP] = 0;
//      }
//    }
//    {
//      int status;
//      FILE* statF;
//      char statBuff[4096];
//      statF = fopen("/proc/stat", "r" ); /* read only */ 
//      if (statF != NULL) {
//        status = fread(statBuff, 1, sizeof(statBuff), statF);
//        fclose(statF);
//        if (status > 0) {
//          uint32 userJiffies;
//          uint32 niceJiffies;
//          uint32 sysJiffies;
//          uint32 idleJiffies;
//
//          status = sscanf(statBuff, "cpu  %lu %lu %lu %lu",
//                          &userJiffies,
//                          &niceJiffies,
//                          &sysJiffies,
//                          &idleJiffies);
//          // expect 4 conversions
//          if (status != 4) {  
//            int errNum = errno; // for debugging
//            errNum = errNum; // lint
//            UTL_ASSERT(status == 4);
//          }
//          // Calculate CPU usage
//          if (lastCpuStatsInvalid) {
//            lastCpuStatsInvalid = 0;
//            lastCpuStats[CPU_STAT_IDLE] = idleJiffies;
//            lastCpuStats[CPU_STAT_USER] = userJiffies;
//            lastCpuStats[CPU_STAT_SYSTEM] = sysJiffies;
//            lastCpuStats[CPU_STAT_NICE] = niceJiffies;
//            sd[SYSTEM_CPUUSER] = 0;
//            sd[SYSTEM_CPUSYSTEM] = 0;
//            sd[SYSTEM_CPUNICE] = 0;
//            sd[SYSTEM_CPUIDLE] = 100;
//          } else { /* compute cpu time percentages */
//            int i;
//            uint32 total_change = 0;
//            uint32 half_total;
//            uint32 diffs[MAX_CPU_STATS];
//            uint32 newStats[MAX_CPU_STATS];
//
//            newStats[CPU_STAT_IDLE] = idleJiffies;
//            newStats[CPU_STAT_USER] = userJiffies;
//            newStats[CPU_STAT_SYSTEM] = sysJiffies;
//            newStats[CPU_STAT_NICE] = niceJiffies;
//    
//            /* calculate changes for each state and the overall change */
//            for (i = 0; i < MAX_CPU_STATS; i++) {
//              diffs[i] = (uint32)(newStats[i] - lastCpuStats[i]);
//              total_change += diffs[i];
//              lastCpuStats[i] = newStats[i];
//            }
//
//            /* avoid divide by zero potential */
//            if (total_change == 0) {
//              total_change = 1;
//            }
//
//            /* calculate percentages based on overall change, rounding up */
//            half_total = total_change / 2;
//            for (i = 0; i < MAX_CPU_STATS; i++) {
//              diffs[i] = ((diffs[i] * 100) + half_total) / total_change;
//            }
//            sd[SYSTEM_CPUUSER] = diffs[CPU_STAT_USER];
//            sd[SYSTEM_CPUSYSTEM] = diffs[CPU_STAT_SYSTEM];
//            sd[SYSTEM_CPUNICE] = diffs[CPU_STAT_NICE];
//            sd[SYSTEM_CPUIDLE] = diffs[CPU_STAT_IDLE];
//          }
//
//          { // do page stats
//            uint32 pageIns = 0;
//            uint32 pageOuts = 0;
//            uint32 swapIns = 0;
//            uint32 swapOuts = 0;
//            char* srcPtr = strstr(statBuff, "page ");
//            if (srcPtr != NULL) {
//              status = sscanf(srcPtr, "page %lu %lu\nswap %lu %lu",
//                              &pageIns, &pageOuts, &swapIns, &swapOuts);
//              if (status != 4) {  
//                int errNum = errno; // for debugging
//                errNum = errNum; // lint
//                UTL_ASSERT(status == 4);
//              }
//            }
//            sd[SYSTEM_PAGEINS] = pageIns;
//            sd[SYSTEM_PAGEOUTS] = pageOuts;
//            sd[SYSTEM_SWAPINS] = swapIns;
//            sd[SYSTEM_SWAPOUTS] = swapOuts;
//          }
//          { // do contextSwitches and processCreates
//            uint32 contextSwitches = 0;
//            uint32 processCreates = 0;
//            char* srcPtr = strstr(statBuff, "ctxt ");
//            if (srcPtr != NULL) {
//              status = sscanf(srcPtr, "ctxt %lu\nbtime %*u\nprocesses %lu",
//                              &contextSwitches, &processCreates);
//              if (status != 2) {  
//                int errNum = errno; // for debugging
//                errNum = errNum; // lint
//                UTL_ASSERT(status == 2);
//              }
//            }
//            sd[SYSTEM_CTXT] = contextSwitches;
//            sd[SYSTEM_PROCESSCREATES] = processCreates;
//          }
//        } else {
//          sd[SYSTEM_CPUUSER] = 0;
//          sd[SYSTEM_CPUSYSTEM] = 0;
//          sd[SYSTEM_CPUNICE] = 0;
//          sd[SYSTEM_CPUIDLE] = 100;
//          sd[SYSTEM_PAGEINS] = 0;
//          sd[SYSTEM_PAGEOUTS] = 0;
//          sd[SYSTEM_SWAPINS] = 0;
//          sd[SYSTEM_SWAPOUTS] = 0;
//          sd[SYSTEM_CTXT] = 0;
//          sd[SYSTEM_PROCESSCREATES] = 0;
//        }
//      }
//    }
//
//    getNetStats(lsd);
//
//    INT_FIELD_STORE(allocatedSwap, sd[SYSTEM_ALLOCSWAP]);
//    INT_FIELD_STORE(bufferMemory, sd[SYSTEM_BUFFERMEM]);
//    INT_FIELD_STORE(contextSwitches, sd[SYSTEM_CTXT]);
//    INT_FIELD_STORE(cpuActive, sd[SYSTEM_CPUNICE]+sd[SYSTEM_CPUSYSTEM]+sd[SYSTEM_CPUUSER]);
//    INT_FIELD_STORE(cpuIdle, sd[SYSTEM_CPUIDLE]);
//    INT_FIELD_STORE(cpuNice, sd[SYSTEM_CPUNICE]);
//    INT_FIELD_STORE(cpuSystem, sd[SYSTEM_CPUSYSTEM]);
//    INT_FIELD_STORE(cpuUser, sd[SYSTEM_CPUUSER]);
//    INT_FIELD_STORE(cpus, sd[SYSTEM_CPUCOUNT]);
//    INT_FIELD_STORE(freeMemory, sd[SYSTEM_FREEMEM]);
//    FLOAT_FIELD_STORE(loadAverage1, cvtFloatBits(sd[SYSTEM_LOADAV1]));
//    FLOAT_FIELD_STORE(loadAverage5, cvtFloatBits(sd[SYSTEM_LOADAV5]));
//    FLOAT_FIELD_STORE(loadAverage15, cvtFloatBits(sd[SYSTEM_LOADAV15]));
//    INT_FIELD_STORE(pagesPagedIn, sd[SYSTEM_PAGEINS]);
//    INT_FIELD_STORE(pagesPagedOut, sd[SYSTEM_PAGEOUTS]);
//    INT_FIELD_STORE(pagesSwappedIn, sd[SYSTEM_SWAPINS]);
//    INT_FIELD_STORE(pagesSwappedOut, sd[SYSTEM_SWAPOUTS]);
//    INT_FIELD_STORE(physicalMemory, sd[SYSTEM_PHYSMEM]);
//    INT_FIELD_STORE(processCreates, sd[SYSTEM_PROCESSCREATES]);
//    INT_FIELD_STORE(processes, sd[SYSTEM_PROCCOUNT]);
//    INT_FIELD_STORE(sharedMemory, sd[SYSTEM_SHAREDMEM]);
//    INT_FIELD_STORE(unallocatedSwap, sd[SYSTEM_UNALLOCSWAP]);
//
//    LONG_FIELD_STORE(loopbackPackets, lsd[SYSTEM_NET_LOOPBACK_PACKETS]);
//    LONG_FIELD_STORE(loopbackBytes, lsd[SYSTEM_NET_LOOPBACK_BYTES]);
//    LONG_FIELD_STORE(recvPackets, lsd[SYSTEM_NET_RECV_PACKETS]);
//    LONG_FIELD_STORE(recvBytes, lsd[SYSTEM_NET_RECV_BYTES]);
//    LONG_FIELD_STORE(recvErrors, lsd[SYSTEM_NET_RECV_ERRS]);
//    LONG_FIELD_STORE(recvDrops, lsd[SYSTEM_NET_RECV_DROP]);
//    LONG_FIELD_STORE(xmitPackets, lsd[SYSTEM_NET_XMIT_PACKETS]);
//    LONG_FIELD_STORE(xmitBytes, lsd[SYSTEM_NET_XMIT_BYTES]);
//    LONG_FIELD_STORE(xmitErrors, lsd[SYSTEM_NET_XMIT_ERRS]);
//    LONG_FIELD_STORE(xmitDrops, lsd[SYSTEM_NET_XMIT_DROP]);
//    LONG_FIELD_STORE(xmitCollisions, lsd[SYSTEM_NET_XMIT_COLL]);
//#undef INT_FIELD_STORE
//#undef LONG_FIELD_STORE
//#undef FLOAT_FIELD_STORE
//#undef DOUBLE_FIELD_STORE
}

/*
 * JOM args
 * Class:     com_gemstone_gemfire_internal_HostStatHelper
 * Method:    refreshProcess
 * Signature: (I[I[J[D)V
 */
JNIEXPORT void JNICALL Java_com_gemstone_gemfire_internal_HostStatHelper_refreshProcess
(JNIEnv *env, jclass unused, jint pid, jintArray intStorage, jlongArray longStorage, jdoubleArray doubleStorage)
{
//  jboolean isCopy;
//  int32* intPtr = NULL;
//  int64* longPtr = NULL;
//  double* doublePtr = NULL;
//
//  if (intStorage != NULL) {
//    intPtr = (int32*)(*env)->GetPrimitiveArrayCritical(env, intStorage, &isCopy);
//  }
//  if (longStorage != NULL) {
//    longPtr = (int64*)(*env)->GetPrimitiveArrayCritical(env, longStorage, &isCopy);
//  }
//  if (doubleStorage != NULL) {
//    doublePtr = (double*)(*env)->GetPrimitiveArrayCritical(env, doubleStorage, &isCopy);
//  }
//
//  refreshProcess(pid, intPtr, longPtr, doublePtr);
//
//  if (doubleStorage != NULL) {
//    env->ReleasePrimitiveArrayCritical(doubleStorage, doublePtr, 0);
//  }
//  if (longStorage != NULL) {
//    env->ReleasePrimitiveArrayCritical(longStorage, longPtr, 0);
//  }
//  if (intStorage != NULL) {
//    env->ReleasePrimitiveArrayCritical(intStorage, intPtr, 0);
//  }
}

/*
 * JOM args
 * Class:     com_gemstone_gemfire_internal_HostStatHelper
 * Method:    refreshSystem
 * Signature: ([I[J[D)V
 */
JNIEXPORT void JNICALL Java_com_gemstone_gemfire_internal_HostStatHelper_refreshSystem
(JNIEnv *env, jclass unused, jintArray intStorage, jlongArray longStorage, jdoubleArray doubleStorage)
{
//  jboolean isCopy;
//  int32* intPtr = NULL;
//  int64* longPtr = NULL;
//  double* doublePtr = NULL;
//
//  if (intStorage != NULL) {
//    intPtr = (int32*)(*env)->GetPrimitiveArrayCritical(env, intStorage, &isCopy);
//  }
//  if (longStorage != NULL) {
//    longPtr = (int64*)(*env)->GetPrimitiveArrayCritical(env, longStorage, &isCopy);
//  }
//  if (doubleStorage != NULL) {
//    doublePtr = (double*)(*env)->GetPrimitiveArrayCritical(env, doubleStorage, &isCopy);
//  }
//
//  refreshSystem(intPtr, longPtr, doublePtr);
//
//  if (doublePtr != NULL) {
//    (*env)->ReleasePrimitiveArrayCritical(env, doubleStorage, doublePtr, 0);
//  }
//  if (longPtr != NULL) {
//    (*env)->ReleasePrimitiveArrayCritical(env, longStorage, longPtr, 0);
//  }
//  if (intPtr != NULL) {
//    (*env)->ReleasePrimitiveArrayCritical(env, intStorage, intPtr, 0);
//  }
}

/*
 * Class:     com_gemstone_gemfire_internal_HostStatHelper
 * Method:    init
 * Signature: ()V
 */
JNIEXPORT jint JNICALL Java_com_gemstone_gemfire_internal_HostStatHelper_init
(JNIEnv *env, jclass unused)
{
  return 0;
}

/*
 * Class:     com_gemstone_gemfire_internal_HostStatHelper
 * Method:    readyRefresh
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_com_gemstone_gemfire_internal_HostStatHelper_readyRefresh
(JNIEnv *env, jclass unused)
{
}

/*
 * Class:     com_gemstone_gemfire_internal_HostStatHelper
 * Method:    close
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_com_gemstone_gemfire_internal_HostStatHelper_close
(JNIEnv *env, jclass unused)
{
  /* do nothing */
}

#endif /* FLG_OSX_UNIX */




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