cachelab started

cachelab/cbsl/tests/various_size_array.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 <time.h>
+#include <math.h>
+#include <cbsl.h>
+
+#define CBSL_ERROR_CHECK(X)  {if ((X) == cbsl_error) { fprintf(stderr, "error: %s\n", (#X)); exit(1); }}
+
+typedef unsigned char byte_t;
+
+extern void compress(uint64_t n, uint64_t* sizes, byte_t** a);
+extern void raw_write(uint64_t n, uint64_t* sizes, byte_t** a);
+extern void decompress(uint64_t n, uint64_t* sizes, byte_t** a);
+extern void raw_read(uint64_t n, uint64_t* sizes, byte_t** a);
+
+extern uint64_t rand_size();
+extern void     rand_byte_t(uint64_t data_size, byte_t* a);
+
+char cname[128], sname[128];
+
+int main(int argc, char** argv)
+{
+  sprintf(cname, "various_compressed.zst");
+  sprintf(sname, "various_raw.dat");
+
+  srand((unsigned int)(time(NULL)));
+
+  uint64_t num_vars;
+  if (argc < 2)
+  {
+    num_vars = rand() % 100 + 2;
+  }
+  else
+  {
+    sscanf(argv[1], "%lu\n", &num_vars);
+  }
+  printf("number of array (data sets): %lu\n", num_vars);
+
+  byte_t**  a = (byte_t**)(malloc(sizeof(byte_t**) * num_vars));
+  byte_t**  b = (byte_t**)(malloc(sizeof(byte_t**) * num_vars));
+  byte_t**  c = (byte_t**)(malloc(sizeof(byte_t**) * num_vars));
+  uint64_t* asizes = (uint64_t*)(malloc(sizeof(uint64_t*) * num_vars));
+  uint64_t* bsizes = (uint64_t*)(malloc(sizeof(uint64_t*) * num_vars));
+  uint64_t* csizes = (uint64_t*)(malloc(sizeof(uint64_t*) * num_vars));
+
+  for(uint64_t i = 0; i < num_vars; ++i)
+  {
+    asizes[i] = rand_size();
+    a[i] = (byte_t*)(malloc(sizeof(byte_t*) * asizes[i]));
+    rand_byte_t(asizes[i] / sizeof(byte_t), a[i]);
+    printf("array[%lu] = %lu bytes\n", i, asizes[i]);
+
+    b[i] = (byte_t*)(malloc(sizeof(byte_t*) * asizes[i]));
+    c[i] = (byte_t*)(malloc(sizeof(byte_t*) * asizes[i]));
+  }
+  
+  compress(num_vars, asizes, a);
+  raw_write(num_vars, asizes, a);
+
+  decompress(num_vars, bsizes, b);
+  raw_read(num_vars, csizes, c);
+
+  for (uint64_t i = 0; i < num_vars; ++i)
+  {
+    if (asizes[i] != bsizes[i] || bsizes[i] != csizes[i])
+    {
+      fprintf(stderr, "array size is mismatch!\n");
+      exit(1);
+    }
+  }
+
+  for (uint64_t i = 0; i < num_vars; ++i)
+  for (uint64_t j = 0; j < asizes[i]; ++j)
+  {
+    if (a[i][j] != b[i][j] || b[i][j] != c[i][j])
+    {
+      fprintf(stderr, "data value is mismatch! (a,b,c)[%lu][%lu]\n", i, j);
+      exit(1);
+    }
+  }
+
+  for (uint64_t i = 0; i < num_vars; ++i)
+  {
+    free(a[i]);
+    free(b[i]);
+    free(c[i]);
+  }
+  free(a);
+  free(b);
+  free(c);
+  free(asizes);
+  free(bsizes);
+  free(csizes);
+
+  return 0;
+}
+
+void compress(uint64_t n, uint64_t* sizes, byte_t** a)
+{
+  cbsl_ctx* ctx = cbsl_open(cbsl_store_mode, cname);
+  if (ctx == NULL)
+  {
+    fprintf(stderr, "error: cbsl_open(cbsl_store_mode)\n");
+    exit(1);
+  }
+  for (uint64_t i = 0; i < n; ++i)
+  {
+    CBSL_ERROR_CHECK(cbsl_write(ctx, &sizes[i], sizeof(sizes[i])));
+    CBSL_ERROR_CHECK(cbsl_write(ctx, a[i], sizes[i]));
+  }
+  CBSL_ERROR_CHECK(cbsl_close(ctx));
+}
+
+void raw_write(uint64_t n, uint64_t* sizes, byte_t** a)
+{
+  FILE* fp = fopen(sname, "wb");
+  if (fp == NULL)
+  {
+    fprintf(stderr, "error: fopen(wb)\n");
+    exit(1);
+  }
+  for (uint64_t i = 0; i < n; ++i)
+  {
+    fwrite(&sizes[i], 1, sizeof(sizes[i]), fp);
+    fwrite(a[i], 1, sizes[i], fp);
+  }
+  fclose(fp);
+}
+
+void decompress(uint64_t n, uint64_t* sizes, byte_t** a)
+{
+  cbsl_ctx* ctx = cbsl_open(cbsl_load_mode, cname);
+  if (ctx == NULL)
+  {
+    fprintf(stderr, "error: cbsl_open(cbsl_load_mode)\n");
+    exit(1);
+  }
+  for (uint64_t i = 0; i < n; ++i)
+  {
+    CBSL_ERROR_CHECK(cbsl_read(ctx, &sizes[i], sizeof(sizes[i])));
+    CBSL_ERROR_CHECK(cbsl_read(ctx, a[i], sizes[i]));
+  }
+  CBSL_ERROR_CHECK(cbsl_close(ctx));
+}
+
+void raw_read(uint64_t n, uint64_t* sizes, byte_t** a)
+{
+  FILE* fp = fopen(sname, "rb");
+  if (fp == NULL)
+  {
+    fprintf(stderr, "error: fopen(rb)\n");
+    exit(1);
+  }
+  for (uint64_t i = 0; i < n; ++i)
+  {
+    fread(&sizes[i], 1, sizeof(sizes[i]), fp);
+    fread(a[i], 1, sizes[i], fp);
+  }
+  fclose(fp);
+}
+
+uint64_t rand_size()
+{
+  const uint64_t min_data_size = 1024;
+  const uint64_t max_data_size = 1048576; /* 1 MiB */
+  uint64_t size = rand() % max_data_size;
+  return (size < min_data_size) ? min_data_size : size;
+}
+
+void rand_byte_t(uint64_t data_size, byte_t* a)
+{
+  for(uint64_t i = 0; i < data_size; ++i)
+    a[i] = rand() % 255;
+}