commit e04f826fef44b85108be85fb6d3a16c35a9e5c29
author Kenny Root <kroot@google.com> Wed Jun 15 20:41:15 2011 -0700
committer Kenny Root <kroot@google.com> Wed Jun 15 20:55:49 2011 -0700
tree 13afd43678741a6439d23a966950cd7c6d40bdaa
parent a27ad3cca3f17e394ce96011422a0131c15939a9

Use rand() for MinGW

The version of MinGW we use doesn't have nrand48() which is really lame,
but we need to use libutils in the Windows SDK.

Change-Id: If854c03dbf02bc29e79f49e4539f08c2bf057517

libs/utils/BlobCache.cpp

diff --git a/libs/utils/BlobCache.cpp b/libs/utils/BlobCache.cpp
index 1298fa7..590576a 100644
--- a/libs/utils/BlobCache.cpp
+++ b/libs/utils/BlobCache.cpp
@@ -31,9 +31,13 @@
         mMaxTotalSize(maxTotalSize),
         mTotalSize(0) {
     nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
+#ifdef _WIN32
+    srand(now);
+#else
     mRandState[0] = (now >> 0) & 0xFFFF;
     mRandState[1] = (now >> 16) & 0xFFFF;
     mRandState[2] = (now >> 32) & 0xFFFF;
+#endif
     LOGV("initializing random seed using %lld", now);
 }
 
@@ -148,11 +152,19 @@
     return valueBlobSize;
 }
 
+long int BlobCache::blob_random() {
+#ifdef _WIN32
+    return rand();
+#else
+    return nrand48(mRandState);
+#endif
+}
+
 void BlobCache::clean() {
     // Remove a random cache entry until the total cache size gets below half
     // the maximum total cache size.
     while (mTotalSize > mMaxTotalSize / 2) {
-        size_t i = size_t(nrand48(mRandState) % (mCacheEntries.size()));
+        size_t i = size_t(blob_random() % (mCacheEntries.size()));
         const CacheEntry& entry(mCacheEntries[i]);
         mTotalSize -= entry.getKey()->getSize() + entry.getValue()->getSize();
         mCacheEntries.removeAt(i);