The block numbers do not give us comlete enough coverage, so add a simple
checksum that includes all transmitted bytes. Keep block numbers though:
they are invaluable when comparing specific damage with a traces of
events inside tabled.
Signed-off-by: Pete Zaitcev <zaitcev@xxxxxxxxxx>
---
test/large-object.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
commit 713da3a60b5763a11ca63593965e31a5b924ca13
Author: Master <zaitcev@xxxxxxxxxxxxxxxxxx>
Date: Tue Jan 5 20:51:53 2010 -0700
Add checksums.
diff --git a/test/large-object.c b/test/large-object.c
index b656333..919bbc4 100644
--- a/test/large-object.c
+++ b/test/large-object.c
@@ -44,12 +44,14 @@
#define NBLKS2 30000
struct put_ctx {
+ unsigned int csum;
unsigned int blksize;
unsigned long off;
unsigned long total;
};
struct get_ctx {
+ unsigned int csum;
unsigned int blksize;
unsigned long off;
};
@@ -57,6 +59,22 @@ struct get_ctx {
static char bucket[] = "test-large";
static char key[] = "Key of Large Object";
+#define CSUM_INIT 0xFFFFFFFF
+
+static void incrsum(unsigned int *psum, unsigned char *data, size_t len)
+{
+ unsigned int sum;
+
+ sum = *psum;
+ while (len) {
+ sum ^= *data;
+ sum = sum << 1 | sum >> 31;
+ data++;
+ --len;
+ }
+ *psum = sum;
+}
+
static size_t put_cb(void *ptr, size_t membsize, size_t nmemb, void *user_data)
{
struct put_ctx *ctx = user_data;
@@ -84,6 +102,8 @@ static size_t put_cb(void *ptr, size_t membsize, size_t nmemb, void *user_data)
if (off == 0)
data[0] = num;
+ incrsum(&ctx->csum, data, rem);
+
ctx->off += rem;
return rem;
@@ -131,6 +151,8 @@ static size_t get_cb(void *ptr, size_t membsize, size_t nmemb, void *user_data)
OK(membsize == 1);
+ incrsum(&ctx->csum, ptr, nmemb);
+
togo = nmemb;
while (togo) {
len = get_one(ctx, ptr, togo);
@@ -144,11 +166,13 @@ static void runtest(struct httpstor_client *httpstor,
size_t blklen, int nblks)
{
off_t total = blklen * nblks;
+ unsigned int checksum;
struct put_ctx putctx;
struct get_ctx getctx;
bool rcb;
memset(&putctx, 0, sizeof(putctx));
+ putctx.csum = CSUM_INIT;
putctx.blksize = blklen;
putctx.total = total;
@@ -156,12 +180,17 @@ static void runtest(struct httpstor_client *httpstor,
OK(rcb);
OK(putctx.off == total);
+ checksum = putctx.csum;
+
memset(&getctx, 0, sizeof(getctx));
+ getctx.csum = CSUM_INIT;
getctx.blksize = blklen;
rcb = httpstor_get(httpstor, bucket, key, get_cb, &getctx, false);
OK(rcb);
OK(getctx.off == total);
+
+ OK(checksum == getctx.csum);
}
int main(int argc, char *argv[])
--
To unsubscribe from this list: send the line "unsubscribe hail-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
