Move implementation of QuotaManager.getVolumeInfo to base::SysInfo.

base/sys_info_posix.cc

 // Copyright (c) 2011 The Chromium 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 "base/sys_info.h"
 
 #include <errno.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
@@ skipping 55 matching lines @@
     NOTREACHED();
     return 0;
   }
   return limit.rlim_cur == RLIM_INFINITY ? 0 : limit.rlim_cur;
 }
 
 base::LazyInstance<
     base::internal::LazySysInfoValue<int64_t, AmountOfVirtualMemory>>::Leaky
     g_lazy_virtual_memory = LAZY_INSTANCE_INITIALIZER;
 
+bool GetDiskSpaceInfo(const base::FilePath& path,
+                      int64_t* available_bytes,
+                      int64_t* total_bytes) {
+  struct statvfs stats;
+  if (HANDLE_EINTR(statvfs(path.value().c_str(), &stats)) != 0)
+    return false;
+
+  if (available_bytes)
+    *available_bytes = static_cast<int64_t>(stats.f_bavail) * stats.f_frsize;
+  if (total_bytes)
+    *total_bytes = static_cast<int64_t>(stats.f_blocks) * stats.f_frsize;
+  return true;
+}
+
 }  // namespace
 
 namespace base {
 
 #if !defined(OS_OPENBSD)
 int SysInfo::NumberOfProcessors() {
   return g_lazy_number_of_processors.Get().value();
 }
 #endif
 
 // static
 int64_t SysInfo::AmountOfVirtualMemory() {
   return g_lazy_virtual_memory.Get().value();
 }
 
 // static
 int64_t SysInfo::AmountOfFreeDiskSpace(const FilePath& path) {
   base::ThreadRestrictions::AssertIOAllowed();
 
-  struct statvfs stats;
-  if (HANDLE_EINTR(statvfs(path.value().c_str(), &stats)) != 0)
+  int64_t available;
+  if (!GetDiskSpaceInfo(path, &available, nullptr))
     return -1;
-  return static_cast<int64_t>(stats.f_bavail) * stats.f_frsize;
+  return available;
+}
+
+// static
+int64_t SysInfo::AmountOfTotalDiskSpace(const FilePath& path) {
+  base::ThreadRestrictions::AssertIOAllowed();
+
+  int64_t total;
+  if (!GetDiskSpaceInfo(path, nullptr, &total))
+    return -1;
+  return total;
 }
 
 #if !defined(OS_MACOSX) && !defined(OS_ANDROID)
 // static
 std::string SysInfo::OperatingSystemName() {
   struct utsname info;
   if (uname(&info) < 0) {
     NOTREACHED();
     return std::string();
   }
@@ skipping 28 matching lines @@
   }
   return arch;
 }
 
 // static
 size_t SysInfo::VMAllocationGranularity() {
   return getpagesize();
 }
 
 }  // namespace base