v1.4.4

attic/old_tests/block_storage_test.cpp

@@ -0,0 +1,69 @@
+#include <iostream>
+
+#include "StarBlockStorage.hpp"
+#include "StarFile.hpp"
+#include "StarFormat.hpp"
+
+using namespace Star;
+using namespace std;
+
+static size_t TotalCount = 20;
+static size_t FreeCount = 10;
+static size_t BlockSize = 128;
+static size_t TestRepeatCount = 10;
+
+int main(int argc, char** argv) {
+  BlockStoragePtr bs = std::make_shared<BlockStorage>();
+  bs->setIODevice(File::open("./blocktest", File::ReadWrite | File::Truncate));
+  bs->setBlockSize(BlockSize);
+  bs->open();
+  bs->writeToUserHeader(0, "01234567", 8);
+
+  size_t next = 0;
+
+  List<BlockStorage::BlockIndex> usedBlocks;
+  bs->reserveBlocks(TotalCount, back_inserter(usedBlocks));
+  ByteArray writeBlock(BlockSize, 0);
+
+  cout << "writing: ";
+  for (BlockStorage::BlockIndex b : usedBlocks) {
+    coutf("(%s:%s) ", next, b);
+    writeBlock.fill((char)next++);
+    bs->updateBlock(b, writeBlock);
+  }
+  cout << endl;
+
+  for (size_t repeat = 0; repeat < TestRepeatCount; ++repeat) {
+    std::random_shuffle(usedBlocks.begin(), usedBlocks.end());
+    getc(stdin);
+
+    List<BlockStorage::BlockIndex> blocksToFree = usedBlocks.slice(0, FreeCount);
+    usedBlocks.erase(0, FreeCount);
+
+    cout << "freeing: " << blocksToFree << endl;
+    bs->freeBlocks(blocksToFree.begin(), blocksToFree.end());
+
+    getc(stdin);
+    List<BlockStorage::BlockIndex> reserveBlocks;
+    bs->reserveBlocks(FreeCount, back_inserter(reserveBlocks));
+
+    cout << "writing: ";
+    for (BlockStorage::BlockIndex b : reserveBlocks) {
+      coutf("(%s:%s) ", next, b);
+      writeBlock.fill((char)next++);
+      bs->updateBlock(b, writeBlock);
+      usedBlocks.append(b);
+    }
+    cout << endl;
+  }
+
+  getc(stdin);
+  cout << "freeing all" << endl;
+  bs->freeBlocks(usedBlocks.begin(), usedBlocks.end());
+
+  getc(stdin);
+  cout << "shrinking and closing" << endl;
+  bs->shrink();
+
+  bs->close();
+}