Deduplicates NaClSysSysconf implementation

src/trusted/service_runtime/win/nacl_syscall_impl.c

 /*
  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "native_client/src/include/portability.h"
 
 #include <windows.h>
 #include <io.h>
@@ skipping 74 matching lines @@
    * (1000 \cdot \Delta n) \bmod 2^{32}
    *  &\equiv ((1000 \bmod 2^{32}) \cdot (\Delta n \bmod 2^{32}) \bmod 2^{32}\\
    *  &\equiv (1000 \cdot (\Delta n \bmod 2^{32})) \bmod 2^{32}.
    * \end{align*}
    *
    * so when $\Delta n$ is small, the time difference is going to be a
    * small multiple of $1000$, regardless of wraparound.
    */
   return retval;
 }
-
-int32_t NaClSysSysconf(struct NaClAppThread *natp,
-                       int32_t              name,
-                       int32_t              *result) {
-  int32_t         retval = -NACL_ABI_EINVAL;
-  static int32_t  number_of_workers = 0;
-  int32_t         result_value;
-
-  NaClLog(3,
-          ("Entered NaClSysSysconf(%08"NACL_PRIxPTR
-           "x, %d, 0x%08"NACL_PRIxPTR")\n"),
-          (uintptr_t) natp, name, (uintptr_t) result);
-
-  switch (name) {
-    case NACL_ABI__SC_NPROCESSORS_ONLN: {
-      if (0 == number_of_workers) {
-        SYSTEM_INFO si;
-        GetSystemInfo(&si);
-        number_of_workers = (int32_t) si.dwNumberOfProcessors;
-      }
-      result_value = number_of_workers;
-      break;
-    }
-    case NACL_ABI__SC_SENDMSG_MAX_SIZE: {
-      /* TODO(sehr,bsy): this value needs to be determined at run time. */
-      const int32_t kImcSendMsgMaxSize = 1 << 16;
-      result_value = kImcSendMsgMaxSize;
-      break;
-    }
-    case NACL_ABI__SC_PAGESIZE: {
-      result_value = 1 << 16;  /* always 64k pages */
-      break;
-    }
-    default: {
-      retval = -NACL_ABI_EINVAL;
-      goto cleanup;
-    }
-  }
-  if (!NaClCopyOutToUser(natp->nap, (uintptr_t) result, &result_value,
-                         sizeof result_value)) {
-    retval = -NACL_ABI_EFAULT;
-    goto cleanup;
-  }
-  retval = 0;
-cleanup:
-  return retval;
-}