cachelab started

cachelab/cbsl/tests/split_compression.c

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+/*
+ * Copyright 2019 Yuta Hirokawa (University of Tsukuba, Japan)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <cbsl.h>
+
+#define CBSL_ERROR_CHECK(X)  {if ((X) == cbsl_error) { fprintf(stderr, "error: %s\n", (#X)); exit(1); }}
+#define CHECK_BINARY(X,Y)    {if (memcmp(&(X),&(Y),sizeof((X))) != 0) { fprintf(stderr, "error: binary check %s == %s\n", (#X), (#Y)); exit(1); }}
+
+typedef unsigned char byte_t;
+
+extern void record(cbsl_mode, int, byte_t*, int);
+extern void rand_byte_t(int n, byte_t* a);
+
+char cname[128];
+
+int main(int argc, char** argv)
+{
+  if (argc < 3)
+    return 1;
+
+  sprintf(cname, "split.zst");
+
+  int block_size, total_size;
+  sscanf(argv[1], "%d\n", &block_size);
+  sscanf(argv[2], "%d\n", &total_size);
+
+  if (total_size < block_size)
+    return 2;
+
+  byte_t* a = malloc(sizeof(byte_t) * total_size);
+  byte_t* b = malloc(sizeof(byte_t) * total_size);
+  rand_byte_t(total_size, a);
+
+  record(cbsl_store_mode, total_size, a, block_size);
+  record(cbsl_load_mode,    total_size, b, block_size);
+
+  for (int i = 0; i < total_size; ++i)
+  {
+    if (a[i] != b[i])
+    {
+      fprintf(stderr, "mismatch!\n");
+      exit(1);
+    }
+  }
+
+  return 0;
+}
+
+void record(cbsl_mode mode, int total_size, byte_t* a, int block_size)
+{
+  cbsl_ctx* ctx = cbsl_open(mode, cname);
+  if (ctx == NULL)
+  {
+    fprintf(stderr, "error: cbsl_open\n");
+    exit(1);
+  }
+
+  int total = 0;
+  do
+  {
+    int size = (total_size - total < block_size) ? total_size - total : block_size;
+    CBSL_ERROR_CHECK(cbsl_record(ctx, a + total, size));
+    total += size;
+  }
+  while(total < total_size);
+  if (total != total_size)
+  {
+    fprintf(stderr, "total != total_size\n");
+    exit(1);
+  }
+
+  CBSL_ERROR_CHECK(cbsl_close(ctx));
+}
+
+void rand_byte_t(int n, byte_t* a) {
+  for(int i = 0; i < n; ++i)
+    a[i] = rand() % 255;
+}