svn_checksum_t *
svn_checksum_dup(const svn_checksum_t *checksum,
apr_pool_t *pool)
{
/* The duplicate of a NULL checksum is a NULL... */
if (checksum == NULL)
return NULL;
return svn_checksum__from_digest(checksum->digest, checksum->kind, pool);
}
/* Do the work of applying the text delta. */
static svn_error_t *
window_handler(svn_txdelta_window_t *window,
void *window_baton)
{
struct file_baton *b = window_baton;
SVN_ERR(b->apply_handler(window, b->apply_baton));
if (!window)
{
b->result_md5_checksum = svn_checksum__from_digest(b->result_digest,
svn_checksum_md5,
b->pool);
}
return SVN_NO_ERROR;
}
svn_checksum_t *
svn_checksum_empty_checksum(svn_checksum_kind_t kind,
apr_pool_t *pool)
{
const unsigned char *digest;
switch (kind)
{
case svn_checksum_md5:
digest = svn_md5__empty_string_digest();
break;
case svn_checksum_sha1:
digest = svn_sha1__empty_string_digest();
break;
default:
/* We really shouldn't get here, but if we do... */
return NULL;
}
return svn_checksum__from_digest(digest, kind, pool);
}
static svn_error_t *
stream_window_test(const char **msg,
svn_boolean_t msg_only,
svn_test_opts_t *opts,
apr_pool_t *pool)
{
/* Note: put these in data segment, not the stack */
static char source[109001];
static char target[109001];
int i;
char *p = &source[9];
svn_checksum_t *expected;
svn_checksum_t *actual;
svn_string_t source_str;
svn_string_t target_str;
svn_stream_t *source_stream;
svn_stream_t *target_stream;
svn_txdelta_stream_t *txstream;
*msg = "txdelta stream and windows test";
if (msg_only)
return SVN_NO_ERROR;
memcpy(source, "a\nb\nc\nd\ne", 9);
for (i = 100; i--; )
*p++ = '\n';
for (i = 999; i--; p += 109)
memcpy(p, source, 109);
source[109000] = '\0';
memcpy(target, source, 109001);
for (i = 1000; i--; )
target[i*109 + 4] = 'X';
SVN_ERR(svn_checksum(&expected, svn_checksum_md5, target, 109000, pool));
/* f6fd44565e14c6e44b35292719deb77e */
printf("expected: %s\n", svn_checksum_to_cstring(expected, pool));
source_str.data = source;
source_str.len = 109000;
source_stream = svn_stream_from_string(&source_str, pool);
target_str.data = target;
target_str.len = 109000;
target_stream = svn_stream_from_string(&target_str, pool);
svn_txdelta(&txstream, source_stream, target_stream, pool);
while (1)
{
svn_txdelta_window_t *window;
SVN_ERR(svn_txdelta_next_window(&window, txstream, pool));
if (window == NULL)
break;
/* ### examine the window */
}
actual = svn_checksum__from_digest(svn_txdelta_md5_digest(txstream),
svn_checksum_md5, pool);;
printf(" actual: %s\n", svn_checksum_to_cstring(actual, pool));
if (!svn_checksum_match(expected, actual))
{
return svn_error_create(SVN_ERR_TEST_FAILED, NULL,
"Checksums did not match.");
}
return SVN_NO_ERROR;
}
