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/**
* Copyright (c) NVIDIA CORPORATION & AFFILIATES, 2020. ALL RIGHTS RESERVED.
*
* See file LICENSE for terms.
*/
#include <common/test.h>
extern "C" {
#include <ucs/sys/iovec.h>
#include <ucs/sys/iovec.inl>
}
class test_ucs_iov : public ucs::test {
protected:
struct iov1_t {
char length_padding[128];
size_t length;
char buffer_padding[64];
void *buffer;
};
struct iov2_t {
char length_padding[64];
size_t length;
char buffer_padding[256];
void *buffer;
};
template <typename T>
void iov_set_length(T *iov, size_t length) {
iov->length = length;
}
template <typename T>
void iov_set_buffer(T *iov, void *buffer) {
iov->buffer = buffer;
}
template <typename T>
size_t iov_get_length(T *iov) {
return iov->length;
}
template <typename T>
void *iov_get_buffer(T *iov) {
return iov->buffer;
}
template <typename T1, typename T2>
size_t iov_converter(T1 *src_iov, size_t *src_iov_cnt_p,
T2 *dst_iov, size_t dst_iov_cnt,
size_t max_length, ucs_iov_iter_t *iov_iter_p) {
return ucs_iov_converter(src_iov, src_iov_cnt_p,
iov_set_buffer, iov_set_length,
dst_iov, dst_iov_cnt,
iov_get_buffer, iov_get_length,
max_length, iov_iter_p);
}
void expect_zero_changes(size_t res_cnt, size_t res_length,
const ucs_iov_iter_t *iov_iter) {
EXPECT_EQ(0lu, res_cnt);
EXPECT_EQ(0lu, res_length);
EXPECT_EQ(0lu, iov_iter->iov_index);
EXPECT_EQ(0lu, iov_iter->buffer_offset);
}
template<typename T1, typename T2>
void test_iov_type_pair(T1 *iov1, size_t iov1_cnt,
T2 *iov2, size_t iov2_cnt,
size_t max_length) {
size_t res_total_length = 0;
size_t exp_total_length = 0;
size_t cnt, length;
ucs_iov_iter_t iov_iter;
iov1 = new T1[iov1_cnt];
ASSERT_TRUE(iov1 != NULL);
iov2 = new T2[iov2_cnt];
ASSERT_TRUE(iov2 != NULL);
for (size_t i = 0; i < iov2_cnt; i++) {
iov_set_buffer(&iov2[i], (void*)0x1);
iov_set_length(&iov2[i], i);
exp_total_length += iov_get_length(&iov2[i]);
}
ucs_iov_iter_init(&iov_iter);
while (iov_iter.iov_index < iov2_cnt) {
cnt = iov1_cnt;
length = iov_converter(iov1, &cnt,
iov2, iov2_cnt,
max_length, &iov_iter);
EXPECT_TRUE((iov_iter.iov_index == iov2_cnt) ||
(length == max_length) || (cnt == iov1_cnt));
res_total_length += length;
}
EXPECT_EQ(exp_total_length, res_total_length);
ucs_iov_iter_init(&iov_iter);
cnt = 0;
length = iov_converter((T1*)NULL, &cnt,
iov2, iov2_cnt,
max_length, &iov_iter);
expect_zero_changes(cnt, length, &iov_iter);
ucs_iov_iter_init(&iov_iter);
cnt = iov1_cnt;
length = iov_converter(iov1, &cnt,
(T2*)NULL, 0,
max_length, &iov_iter);
expect_zero_changes(cnt, length, &iov_iter);
ucs_iov_iter_init(&iov_iter);
cnt = iov1_cnt;
length = iov_converter(iov1, &cnt,
iov2, iov2_cnt,
0, &iov_iter);
expect_zero_changes(cnt, length, &iov_iter);
delete[] iov1;
delete[] iov2;
}
};
UCS_TEST_F(test_ucs_iov, total_length) {
const size_t iov_cnt = 1024;
size_t total_length = 0;
struct iovec *iov;
iov = new struct iovec[iov_cnt];
ASSERT_TRUE(iov != NULL);
for (size_t i = 0; i < iov_cnt; i++) {
iov[i].iov_len = i;
total_length += iov[i].iov_len;
}
EXPECT_EQ(total_length, ucs_iovec_total_length(iov, iov_cnt));
delete[] iov;
}
UCS_TEST_F(test_ucs_iov, iov_to_iov) {
const size_t iov1_cnt = 16;
const size_t iov2_cnt = 1024;
const size_t max_length = 1024;
void *iov_buf1 = NULL;
void *iov_buf2 = NULL;
test_iov_type_pair(static_cast<iov1_t*>(iov_buf1), iov1_cnt,
static_cast<iov2_t*>(iov_buf2), iov2_cnt,
max_length);
test_iov_type_pair(static_cast<iov2_t*>(iov_buf1), iov1_cnt,
static_cast<iov1_t*>(iov_buf2), iov2_cnt,
max_length);
test_iov_type_pair(static_cast<iov1_t*>(iov_buf1), iov1_cnt,
static_cast<iov1_t*>(iov_buf2), iov2_cnt,
max_length);
test_iov_type_pair(static_cast<iov2_t*>(iov_buf1), iov1_cnt,
static_cast<iov2_t*>(iov_buf2), iov2_cnt,
max_length);
}
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