resolv conflict in mira

1 files changed, 157 insertions, 44 deletions

diff --git a/klm/util/usage.cc b/klm/util/usage.cc
index 8db375e1..e68d7c7c 100644
--- a/klm/util/usage.cc
+++ b/klm/util/usage.cc
@@ -10,61 +10,117 @@
 
 #include <string.h>
 #include <ctype.h>
-#if !defined(_WIN32) && !defined(_WIN64)
+#include <time.h>
+#if defined(_WIN32) || defined(_WIN64)
+// This code lifted from physmem.c in gnulib.  See the copyright statement
+// below.  
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+/*  MEMORYSTATUSEX is missing from older windows headers, so define
+    a local replacement.  */
+typedef struct
+{
+  DWORD dwLength;
+  DWORD dwMemoryLoad;
+  DWORDLONG ullTotalPhys;
+  DWORDLONG ullAvailPhys;
+  DWORDLONG ullTotalPageFile;
+  DWORDLONG ullAvailPageFile;
+  DWORDLONG ullTotalVirtual;
+  DWORDLONG ullAvailVirtual;
+  DWORDLONG ullAvailExtendedVirtual;
+} lMEMORYSTATUSEX;
+typedef WINBOOL (WINAPI *PFN_MS_EX) (lMEMORYSTATUSEX*);
+#else
 #include <sys/resource.h>
 #include <sys/time.h>
-#include <time.h>
 #include <unistd.h>
 #endif
 
-namespace util {
+#if defined(__MACH__) || defined(__FreeBSD__) || defined(__APPLE__)
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif
 
-#if !defined(_WIN32) && !defined(_WIN64)
+namespace util {
 namespace {
 
-// On Mac OS X, clock_gettime is not implemented.
-// CLOCK_MONOTONIC is not defined either.
-#ifdef __MACH__
-#define CLOCK_MONOTONIC 0
-
-int clock_gettime(int clk_id, struct timespec *tp) {
+#if defined(__MACH__)
+typedef struct timeval Wall;
+Wall GetWall() {
   struct timeval tv;
   gettimeofday(&tv, NULL);
-  tp->tv_sec = tv.tv_sec;
-  tp->tv_nsec = tv.tv_usec * 1000;
-  return 0;
+  return tv;
 }
-#endif // __MACH__
-
-float FloatSec(const struct timeval &tv) {
-  return static_cast<float>(tv.tv_sec) + (static_cast<float>(tv.tv_usec) / 1000000.0);
+#elif defined(_WIN32) || defined(_WIN64)
+typedef time_t Wall;
+Wall GetWall() {
+  return time(NULL);
 }
-float FloatSec(const struct timespec &tv) {
-  return static_cast<float>(tv.tv_sec) + (static_cast<float>(tv.tv_nsec) / 1000000000.0);
+#else
+typedef struct timespec Wall;
+Wall GetWall() {
+  Wall ret;
+  clock_gettime(CLOCK_MONOTONIC, &ret);
+  return ret;
 }
+#endif
 
-const char *SkipSpaces(const char *at) {
-  for (; *at == ' ' || *at == '\t'; ++at) {}
-  return at;
+// Some of these functions are only used on some platforms.
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-function"
+#endif
+// These all assume first > second
+double Subtract(time_t first, time_t second) {
+  return difftime(first, second);
+}
+double DoubleSec(time_t tv) {
+  return static_cast<double>(tv);
+}
+#if !defined(_WIN32) && !defined(_WIN64)
+double Subtract(const struct timeval &first, const struct timeval &second) {
+  return static_cast<double>(first.tv_sec - second.tv_sec) + static_cast<double>(first.tv_usec - second.tv_usec) / 1000000.0;
 }
+double Subtract(const struct timespec &first, const struct timespec &second) {
+  return static_cast<double>(first.tv_sec - second.tv_sec) + static_cast<double>(first.tv_nsec - second.tv_nsec) / 1000000000.0;
+}
+double DoubleSec(const struct timeval &tv) {
+  return static_cast<double>(tv.tv_sec) + (static_cast<double>(tv.tv_usec) / 1000000.0);
+}
+double DoubleSec(const struct timespec &tv) {
+  return static_cast<double>(tv.tv_sec) + (static_cast<double>(tv.tv_nsec) / 1000000000.0);
+}
+#endif
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
 
 class RecordStart {
   public:
     RecordStart() {
-      clock_gettime(CLOCK_MONOTONIC, &started_);
+      started_ = GetWall();
     }
 
-    const struct timespec &Started() const {
+    const Wall &Started() const {
       return started_;
     }
 
   private:
-    struct timespec started_;
+    Wall started_;
 };
 
 const RecordStart kRecordStart;
+
+const char *SkipSpaces(const char *at) {
+  for (; *at == ' ' || *at == '\t'; ++at) {}
+  return at;
+}
 } // namespace
-#endif
+
+double WallTime() {
+  return Subtract(GetWall(), kRecordStart.Started());
+}
 
 void PrintUsage(std::ostream &out) {
 #if !defined(_WIN32) && !defined(_WIN64)
@@ -83,32 +139,89 @@ void PrintUsage(std::ostream &out) {
   }
 
   struct rusage usage;
-  if (getrusage(RUSAGE_CHILDREN, &usage)) {
+  if (getrusage(RUSAGE_SELF, &usage)) {
     perror("getrusage");
     return;
   }
   out << "RSSMax:" << usage.ru_maxrss << " kB" << '\t';
-  out << "user:" << FloatSec(usage.ru_utime) << "\tsys:" << FloatSec(usage.ru_stime) << '\t';
-  out << "CPU:" << (FloatSec(usage.ru_utime) + FloatSec(usage.ru_stime));
-
-  struct timespec current;
-  clock_gettime(CLOCK_MONOTONIC, &current);
-  out << "\treal:" << (FloatSec(current) - FloatSec(kRecordStart.Started())) << '\n';
+  out << "user:" << DoubleSec(usage.ru_utime) << "\tsys:" << DoubleSec(usage.ru_stime) << '\t';
+  out << "CPU:" << (DoubleSec(usage.ru_utime) + DoubleSec(usage.ru_stime));
+  out << '\t';
 #endif
+
+  out << "real:" << WallTime() << '\n';
 }
 
+/* Adapted from physmem.c in gnulib 831b84c59ef413c57a36b67344467d66a8a2ba70 */
+/* Calculate the size of physical memory.
+
+   Copyright (C) 2000-2001, 2003, 2005-2006, 2009-2013 Free Software
+   Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation; either version 2.1 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Paul Eggert.  */
 uint64_t GuessPhysicalMemory() {
+#if defined(_SC_PHYS_PAGES) && defined(_SC_PAGESIZE)
+  {
+    long pages = sysconf(_SC_PHYS_PAGES);
+    long page_size = sysconf(_SC_PAGESIZE);
+    if (pages != -1 && page_size != -1)
+      return static_cast<uint64_t>(pages) * static_cast<uint64_t>(page_size);
+  }
+#endif
+#ifdef HW_PHYSMEM
+  { /* This works on *bsd and darwin.  */
+    unsigned int physmem;
+    size_t len = sizeof physmem;
+    static int mib[2] = { CTL_HW, HW_PHYSMEM };
+
+    if (sysctl (mib, sizeof(mib) / sizeof(mib[0]), &physmem, &len, NULL, 0) == 0
+        && len == sizeof (physmem))
+      return static_cast<uint64_t>(physmem);
+  }
+#endif
+
 #if defined(_WIN32) || defined(_WIN64)
-  return 0;
-#elif defined(_SC_PHYS_PAGES) && defined(_SC_PAGESIZE)
-  long pages = sysconf(_SC_PHYS_PAGES);
-  if (pages == -1) return 0;
-  long page_size = sysconf(_SC_PAGESIZE);
-  if (page_size == -1) return 0;
-  return static_cast<uint64_t>(pages) * static_cast<uint64_t>(page_size);
-#else
-  return 0;
+  { /* this works on windows */
+    PFN_MS_EX pfnex;
+    HMODULE h = GetModuleHandle ("kernel32.dll");
+
+    if (!h)
+      return 0;
+
+    /*  Use GlobalMemoryStatusEx if available.  */
+    if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
+      {
+        lMEMORYSTATUSEX lms_ex;
+        lms_ex.dwLength = sizeof lms_ex;
+        if (!pfnex (&lms_ex))
+          return 0;
+        return lms_ex.ullTotalPhys;
+      }
+
+    /*  Fall back to GlobalMemoryStatus which is always available.
+        but returns wrong results for physical memory > 4GB.  */
+    else
+      {
+        MEMORYSTATUS ms;
+        GlobalMemoryStatus (&ms);
+        return ms.dwTotalPhys;
+      }
+  }
 #endif
+  return 0;
 }
 
 namespace {
@@ -135,7 +248,7 @@ template <class Num> uint64_t ParseNum(const std::string &arg) {
   if (after == "%") {
     uint64_t mem = GuessPhysicalMemory();
     UTIL_THROW_IF_ARG(!mem, SizeParseError, (arg), "because % was specified but the physical memory size could not be determined.");
-    return static_cast<double>(value) * static_cast<double>(mem) / 100.0;
+    return static_cast<uint64_t>(static_cast<double>(value) * static_cast<double>(mem) / 100.0);
   }
   
   std::string units("bKMGTPEZY");
@@ -144,7 +257,7 @@ template <class Num> uint64_t ParseNum(const std::string &arg) {
   for (std::string::size_type i = 0; i < index; ++i) {
     value *= 1024;
   }
-  return value;
+  return static_cast<uint64_t>(value);
 }
 
 } // namespace