Index: base/sys_info_android.cc |
diff --git a/base/sys_info_android.cc b/base/sys_info_android.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..b84b557ec323ad5781fff8443c32f31d18d49046 |
--- /dev/null |
+++ b/base/sys_info_android.cc |
@@ -0,0 +1,59 @@ |
+// Copyright (c) 2012 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 <sys/system_properties.h> |
+ |
+#include "base/logging.h" |
+#include "base/string_number_conversions.h" |
+#include "base/string_piece.h" |
+ |
+namespace { |
+ |
+int ParseHeapSize(const base::StringPiece& str) { |
+ const int64 KB = 1024; |
+ const int64 MB = 1024 * KB; |
+ const int64 GB = 1024 * MB; |
+ CHECK_GT(str.size(), 0u); |
+ int64 factor = 1; |
+ size_t length = str.size(); |
+ if (str[length - 1] == 'k') { |
+ factor = KB; |
+ length--; |
+ } else if (str[length - 1] == 'm') { |
+ factor = MB; |
+ length--; |
+ } else if (str[length - 1] == 'g') { |
+ factor = GB; |
+ length--; |
+ } else { |
+ CHECK('0' <= str[length - 1] && str[length - 1] <= '9'); |
+ } |
+ int64 result = 0; |
+ bool parsed = base::StringToInt64(str.substr(0, length), &result); |
+ CHECK(parsed); |
+ result = result * factor / MB; |
+ // dalvik.vm.heapsize property is writable by user, |
+ // truncate it to reasonable value to avoid overflows later. |
+ result = std::min<int64>(std::max<int64>(32, result), 1024); |
+ return static_cast<int>(result); |
+} |
+ |
+int GetDalvikHeapSizeMB() { |
+ char heap_size_str[PROP_VALUE_MAX]; |
+ __system_property_get("dalvik.vm.heapsize", heap_size_str); |
+ return ParseHeapSize(heap_size_str); |
+} |
+ |
+} // anonymous namespace |
+ |
+namespace base { |
+ |
+int SysInfo::DalvikHeapSizeMB() { |
+ static int heap_size = GetDalvikHeapSizeMB(); |
+ return heap_size; |
+} |
+ |
+} // namespace base |