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/*
*
* Copyright 2015 gRPC authors.
*
* 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 "src/core/ext/transport/chttp2/transport/stream_map.h"
#include <grpc/support/log.h>
#include "test/core/util/test_config.h"
#define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)
/* test creation & destruction */
static void test_no_op(void) {
grpc_chttp2_stream_map map;
LOG_TEST("test_no_op");
grpc_chttp2_stream_map_init(&map, 8);
grpc_chttp2_stream_map_destroy(&map);
}
/* test lookup on an empty map */
static void test_empty_find(void) {
grpc_chttp2_stream_map map;
LOG_TEST("test_empty_find");
grpc_chttp2_stream_map_init(&map, 8);
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(&map, 39128));
grpc_chttp2_stream_map_destroy(&map);
}
/* test it's safe to delete twice */
static void test_double_deletion(void) {
grpc_chttp2_stream_map map;
LOG_TEST("test_double_deletion");
grpc_chttp2_stream_map_init(&map, 8);
GPR_ASSERT(0 == grpc_chttp2_stream_map_size(&map));
grpc_chttp2_stream_map_add(&map, 1, (void*)1);
GPR_ASSERT((void*)1 == grpc_chttp2_stream_map_find(&map, 1));
GPR_ASSERT(1 == grpc_chttp2_stream_map_size(&map));
GPR_ASSERT((void*)1 == grpc_chttp2_stream_map_delete(&map, 1));
GPR_ASSERT(0 == grpc_chttp2_stream_map_size(&map));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(&map, 1));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_delete(&map, 1));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(&map, 1));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_delete(&map, 1));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(&map, 1));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_delete(&map, 1));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(&map, 1));
grpc_chttp2_stream_map_destroy(&map);
}
/* test add & lookup */
static void test_basic_add_find(uint32_t n) {
grpc_chttp2_stream_map map;
uint32_t i;
size_t got;
LOG_TEST("test_basic_add_find");
gpr_log(GPR_INFO, "n = %d", n);
grpc_chttp2_stream_map_init(&map, 8);
GPR_ASSERT(0 == grpc_chttp2_stream_map_size(&map));
for (i = 1; i <= n; i++) {
grpc_chttp2_stream_map_add(&map, i, (void*)static_cast<uintptr_t>(i));
}
GPR_ASSERT(n == grpc_chttp2_stream_map_size(&map));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(&map, 0));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(&map, n + 1));
for (i = 1; i <= n; i++) {
got = (uintptr_t)grpc_chttp2_stream_map_find(&map, i);
GPR_ASSERT(i == got);
}
grpc_chttp2_stream_map_destroy(&map);
}
/* verify that for_each gets the right values during test_delete_evens_XXX */
static void verify_for_each(void* user_data, uint32_t stream_id, void* ptr) {
uint32_t* for_each_check = static_cast<uint32_t*>(user_data);
GPR_ASSERT(ptr);
GPR_ASSERT(*for_each_check == stream_id);
*for_each_check += 2;
}
static void check_delete_evens(grpc_chttp2_stream_map* map, uint32_t n) {
uint32_t for_each_check = 1;
uint32_t i;
size_t got;
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(map, 0));
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(map, n + 1));
for (i = 1; i <= n; i++) {
if (i & 1) {
got = (uintptr_t)grpc_chttp2_stream_map_find(map, i);
GPR_ASSERT(i == got);
} else {
GPR_ASSERT(nullptr == grpc_chttp2_stream_map_find(map, i));
}
}
grpc_chttp2_stream_map_for_each(map, verify_for_each, &for_each_check);
if (n & 1) {
GPR_ASSERT(for_each_check == n + 2);
} else {
GPR_ASSERT(for_each_check == n + 1);
}
}
/* add a bunch of keys, delete the even ones, and make sure the map is
consistent */
static void test_delete_evens_sweep(uint32_t n) {
grpc_chttp2_stream_map map;
uint32_t i;
LOG_TEST("test_delete_evens_sweep");
gpr_log(GPR_INFO, "n = %d", n);
grpc_chttp2_stream_map_init(&map, 8);
for (i = 1; i <= n; i++) {
grpc_chttp2_stream_map_add(&map, i, (void*)static_cast<uintptr_t>(i));
}
for (i = 1; i <= n; i++) {
if ((i & 1) == 0) {
GPR_ASSERT((void*)(uintptr_t)i == grpc_chttp2_stream_map_delete(&map, i));
}
}
check_delete_evens(&map, n);
grpc_chttp2_stream_map_destroy(&map);
}
/* add a bunch of keys, delete the even ones immediately, and make sure the map
is consistent */
static void test_delete_evens_incremental(uint32_t n) {
grpc_chttp2_stream_map map;
uint32_t i;
LOG_TEST("test_delete_evens_incremental");
gpr_log(GPR_INFO, "n = %d", n);
grpc_chttp2_stream_map_init(&map, 8);
for (i = 1; i <= n; i++) {
grpc_chttp2_stream_map_add(&map, i, (void*)static_cast<uintptr_t>(i));
if ((i & 1) == 0) {
grpc_chttp2_stream_map_delete(&map, i);
}
}
check_delete_evens(&map, n);
grpc_chttp2_stream_map_destroy(&map);
}
/* add a bunch of keys, delete old ones after some time, ensure the
backing array does not grow */
static void test_periodic_compaction(uint32_t n) {
grpc_chttp2_stream_map map;
uint32_t i;
uint32_t del;
LOG_TEST("test_periodic_compaction");
gpr_log(GPR_INFO, "n = %d", n);
grpc_chttp2_stream_map_init(&map, 16);
GPR_ASSERT(map.capacity == 16);
for (i = 1; i <= n; i++) {
grpc_chttp2_stream_map_add(&map, i, (void*)static_cast<uintptr_t>(i));
if (i > 8) {
del = i - 8;
GPR_ASSERT((void*)(uintptr_t)del ==
grpc_chttp2_stream_map_delete(&map, del));
}
}
GPR_ASSERT(map.capacity == 16);
grpc_chttp2_stream_map_destroy(&map);
}
int main(int argc, char** argv) {
uint32_t n = 1;
uint32_t prev = 1;
uint32_t tmp;
grpc_test_init(argc, argv);
test_no_op();
test_empty_find();
test_double_deletion();
while (n < 100000) {
test_basic_add_find(n);
test_delete_evens_sweep(n);
test_delete_evens_incremental(n);
test_periodic_compaction(n);
tmp = n;
n += prev;
prev = tmp;
}
return 0;
}
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