cachelab started

2025-04-21 23:52:27 +08:00
parent cc99d9b5d9
commit ace7a46fb9
58 changed files with 10071 additions and 0 deletions
--- a/cachelab/cbsl/tests/single_array.c
+++ b/cachelab/cbsl/tests/single_array.c
@@ -0,0 +1,129 @@
+/*
+ * 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 data_size, const byte_t* a);
+extern void raw_write(uint64_t data_size, const byte_t* a);
+extern void decompress(uint64_t data_size, byte_t* a);
+extern void raw_read(uint64_t data_size, byte_t* a);
+
+extern void rand_byte_t(uint64_t data_size, byte_t* a);
+
+char cname[128], sname[128];
+
+int main(int argc, char** argv)
+{
+  if (argc < 2)
+    exit(1);
+
+  int data_size;
+  sscanf(argv[1], "%d", &data_size);
+  printf("data size = %lf [MiB]\n", (double)(data_size)/pow(2,20));
+
+  sprintf(cname, "simple_compressed_%d.zst", data_size);
+  sprintf(sname, "simple_raw_%d.dat", data_size);
+
+  srand((unsigned int)(time(NULL)));
+
+  byte_t* a = (byte_t*)(malloc(data_size));
+  rand_byte_t(data_size / sizeof(byte_t), a);
+  
+  compress(data_size, a);
+  raw_write(data_size, a);
+
+  byte_t* b = (byte_t*)(malloc(data_size));
+  byte_t* c = (byte_t*)(malloc(data_size));
+
+  decompress(data_size, b);
+  raw_read(data_size, c);
+
+  for (uint64_t i = 0; i < data_size; ++i)
+  {
+    if (a[i] != b[i])
+    {
+      fprintf(stderr, "mismatch!\n");
+      exit(1);
+    }
+  }
+
+  free(a);
+  free(b);
+  free(c);
+
+  return 0;
+}
+
+void compress(uint64_t data_size, const 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);
+  }
+  CBSL_ERROR_CHECK(cbsl_write(ctx, a, data_size));
+  CBSL_ERROR_CHECK(cbsl_close(ctx));
+}
+
+void raw_write(uint64_t data_size, const byte_t* a)
+{
+  FILE* fp = fopen(sname, "wb");
+  if (fp == NULL)
+  {
+    fprintf(stderr, "error: fopen(wb)\n");
+    exit(1);
+  }
+  fwrite(a, 1, data_size, fp);
+  fclose(fp);
+}
+
+void decompress(uint64_t data_size, 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);
+  }
+  CBSL_ERROR_CHECK(cbsl_read(ctx, a, data_size));
+  CBSL_ERROR_CHECK(cbsl_close(ctx));
+}
+
+void raw_read(uint64_t data_size, byte_t* a)
+{
+  FILE* fp = fopen(sname, "rb");
+  if (fp == NULL)
+  {
+    fprintf(stderr, "error: fopen(rb)\n");
+    exit(1);
+  }
+  fread(a, 1, data_size, fp);
+  fclose(fp);
+}
+
+void rand_byte_t(uint64_t data_size, byte_t* a)
+{
+  for(uint64_t i = 0; i < data_size; ++i)
+    a[i] = rand() % 255;
+}