From 59539420420e369427c2049d11402512f0a196f6 Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Sun, 13 Nov 2022 17:27:23 +0300
Subject: [PATCH] Add crc32c test utility

---
 src/CMakeLists.txt |  8 ++++++++
 src/test_crc32.cpp | 28 ++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 src/test_crc32.cpp

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index dca6dae88..aaf94014c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -263,6 +263,14 @@ target_link_libraries(test_cas
 	vitastor_client
 )
 
+# test_crc32
+add_executable(test_crc32
+	test_crc32.cpp
+)
+target_link_libraries(test_crc32
+	vitastor_blk
+)
+
 # test_cluster_client
 add_executable(test_cluster_client
 	test_cluster_client.cpp
diff --git a/src/test_crc32.cpp b/src/test_crc32.cpp
new file mode 100644
index 000000000..19aafeab2
--- /dev/null
+++ b/src/test_crc32.cpp
@@ -0,0 +1,28 @@
+// Copyright (c) Vitaliy Filippov, 2019+
+// License: VNPL-1.1 (see README.md for details)
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdint.h>
+
+#include "malloc_or_die.h"
+#include "errno.h"
+#include "crc32c.h"
+
+int main(int narg, char *args[])
+{
+    int bufsize = 65536;
+    uint8_t *buf = (uint8_t*)malloc_or_die(bufsize);
+    uint32_t csum = 0;
+    while (1)
+    {
+        int r = read(0, buf, bufsize);
+        if (r <= 0 && errno != EAGAIN && errno != EINTR)
+            break;
+        csum = crc32c(csum, buf, r);
+    }
+    free(buf);
+    printf("%08x\n", csum);
+    return 0;
+}