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/*
*
* Copyright 2017 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/lib/transport/byte_stream.h"
#include <grpc/grpc.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/useful.h>
#include "src/core/lib/slice/slice_internal.h"
#include "test/core/util/test_config.h"
//
// grpc_slice_buffer_stream tests
//
static void not_called_closure(void* arg, grpc_error* error) {
GPR_ASSERT(false);
}
static void test_slice_buffer_stream_basic(void) {
gpr_log(GPR_DEBUG, "test_slice_buffer_stream_basic");
grpc_core::ExecCtx exec_ctx;
// Create and populate slice buffer.
grpc_slice_buffer buffer;
grpc_slice_buffer_init(&buffer);
grpc_slice input[] = {
grpc_slice_from_static_string("foo"),
grpc_slice_from_static_string("bar"),
};
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
grpc_slice_buffer_add(&buffer, input[i]);
}
// Create byte stream.
grpc_slice_buffer_stream stream;
grpc_slice_buffer_stream_init(&stream, &buffer, 0);
GPR_ASSERT(stream.base.length == 6);
grpc_closure closure;
GRPC_CLOSURE_INIT(&closure, not_called_closure, nullptr,
grpc_schedule_on_exec_ctx);
// Read each slice. Note that next() always returns synchronously.
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
GPR_ASSERT(grpc_byte_stream_next(&stream.base, ~(size_t)0, &closure));
grpc_slice output;
grpc_error* error = grpc_byte_stream_pull(&stream.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[i], output));
grpc_slice_unref_internal(output);
}
// Clean up.
grpc_byte_stream_destroy(&stream.base);
grpc_slice_buffer_destroy_internal(&buffer);
}
static void test_slice_buffer_stream_shutdown(void) {
gpr_log(GPR_DEBUG, "test_slice_buffer_stream_shutdown");
grpc_core::ExecCtx exec_ctx;
// Create and populate slice buffer.
grpc_slice_buffer buffer;
grpc_slice_buffer_init(&buffer);
grpc_slice input[] = {
grpc_slice_from_static_string("foo"),
grpc_slice_from_static_string("bar"),
};
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
grpc_slice_buffer_add(&buffer, input[i]);
}
// Create byte stream.
grpc_slice_buffer_stream stream;
grpc_slice_buffer_stream_init(&stream, &buffer, 0);
GPR_ASSERT(stream.base.length == 6);
grpc_closure closure;
GRPC_CLOSURE_INIT(&closure, not_called_closure, nullptr,
grpc_schedule_on_exec_ctx);
// Read the first slice.
GPR_ASSERT(grpc_byte_stream_next(&stream.base, ~(size_t)0, &closure));
grpc_slice output;
grpc_error* error = grpc_byte_stream_pull(&stream.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[0], output));
grpc_slice_unref_internal(output);
// Now shutdown.
grpc_error* shutdown_error =
GRPC_ERROR_CREATE_FROM_STATIC_STRING("shutdown error");
grpc_byte_stream_shutdown(&stream.base, GRPC_ERROR_REF(shutdown_error));
// After shutdown, the next pull() should return the error.
GPR_ASSERT(grpc_byte_stream_next(&stream.base, ~(size_t)0, &closure));
error = grpc_byte_stream_pull(&stream.base, &output);
GPR_ASSERT(error == shutdown_error);
GRPC_ERROR_UNREF(error);
GRPC_ERROR_UNREF(shutdown_error);
// Clean up.
grpc_byte_stream_destroy(&stream.base);
grpc_slice_buffer_destroy_internal(&buffer);
}
//
// grpc_caching_byte_stream tests
//
static void test_caching_byte_stream_basic(void) {
gpr_log(GPR_DEBUG, "test_caching_byte_stream_basic");
grpc_core::ExecCtx exec_ctx;
// Create and populate slice buffer byte stream.
grpc_slice_buffer buffer;
grpc_slice_buffer_init(&buffer);
grpc_slice input[] = {
grpc_slice_from_static_string("foo"),
grpc_slice_from_static_string("bar"),
};
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
grpc_slice_buffer_add(&buffer, input[i]);
}
grpc_slice_buffer_stream underlying_stream;
grpc_slice_buffer_stream_init(&underlying_stream, &buffer, 0);
// Create cache and caching stream.
grpc_byte_stream_cache cache;
grpc_byte_stream_cache_init(&cache, &underlying_stream.base);
grpc_caching_byte_stream stream;
grpc_caching_byte_stream_init(&stream, &cache);
grpc_closure closure;
GRPC_CLOSURE_INIT(&closure, not_called_closure, nullptr,
grpc_schedule_on_exec_ctx);
// Read each slice. Note that next() always returns synchronously,
// because the underlying byte stream always does.
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
GPR_ASSERT(grpc_byte_stream_next(&stream.base, ~(size_t)0, &closure));
grpc_slice output;
grpc_error* error = grpc_byte_stream_pull(&stream.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[i], output));
grpc_slice_unref_internal(output);
}
// Clean up.
grpc_byte_stream_destroy(&stream.base);
grpc_byte_stream_cache_destroy(&cache);
grpc_slice_buffer_destroy_internal(&buffer);
}
static void test_caching_byte_stream_reset(void) {
gpr_log(GPR_DEBUG, "test_caching_byte_stream_reset");
grpc_core::ExecCtx exec_ctx;
// Create and populate slice buffer byte stream.
grpc_slice_buffer buffer;
grpc_slice_buffer_init(&buffer);
grpc_slice input[] = {
grpc_slice_from_static_string("foo"),
grpc_slice_from_static_string("bar"),
};
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
grpc_slice_buffer_add(&buffer, input[i]);
}
grpc_slice_buffer_stream underlying_stream;
grpc_slice_buffer_stream_init(&underlying_stream, &buffer, 0);
// Create cache and caching stream.
grpc_byte_stream_cache cache;
grpc_byte_stream_cache_init(&cache, &underlying_stream.base);
grpc_caching_byte_stream stream;
grpc_caching_byte_stream_init(&stream, &cache);
grpc_closure closure;
GRPC_CLOSURE_INIT(&closure, not_called_closure, nullptr,
grpc_schedule_on_exec_ctx);
// Read one slice.
GPR_ASSERT(grpc_byte_stream_next(&stream.base, ~(size_t)0, &closure));
grpc_slice output;
grpc_error* error = grpc_byte_stream_pull(&stream.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[0], output));
grpc_slice_unref_internal(output);
// Reset the caching stream. The reads should start over from the
// first slice.
grpc_caching_byte_stream_reset(&stream);
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
GPR_ASSERT(grpc_byte_stream_next(&stream.base, ~(size_t)0, &closure));
error = grpc_byte_stream_pull(&stream.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[i], output));
grpc_slice_unref_internal(output);
}
// Clean up.
grpc_byte_stream_destroy(&stream.base);
grpc_byte_stream_cache_destroy(&cache);
grpc_slice_buffer_destroy_internal(&buffer);
}
static void test_caching_byte_stream_shared_cache(void) {
gpr_log(GPR_DEBUG, "test_caching_byte_stream_shared_cache");
grpc_core::ExecCtx exec_ctx;
// Create and populate slice buffer byte stream.
grpc_slice_buffer buffer;
grpc_slice_buffer_init(&buffer);
grpc_slice input[] = {
grpc_slice_from_static_string("foo"),
grpc_slice_from_static_string("bar"),
};
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
grpc_slice_buffer_add(&buffer, input[i]);
}
grpc_slice_buffer_stream underlying_stream;
grpc_slice_buffer_stream_init(&underlying_stream, &buffer, 0);
// Create cache and two caching streams.
grpc_byte_stream_cache cache;
grpc_byte_stream_cache_init(&cache, &underlying_stream.base);
grpc_caching_byte_stream stream1;
grpc_caching_byte_stream_init(&stream1, &cache);
grpc_caching_byte_stream stream2;
grpc_caching_byte_stream_init(&stream2, &cache);
grpc_closure closure;
GRPC_CLOSURE_INIT(&closure, not_called_closure, nullptr,
grpc_schedule_on_exec_ctx);
// Read one slice from stream1.
GPR_ASSERT(grpc_byte_stream_next(&stream1.base, ~(size_t)0, &closure));
grpc_slice output;
grpc_error* error = grpc_byte_stream_pull(&stream1.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[0], output));
grpc_slice_unref_internal(output);
// Read all slices from stream2.
for (size_t i = 0; i < GPR_ARRAY_SIZE(input); ++i) {
GPR_ASSERT(grpc_byte_stream_next(&stream2.base, ~(size_t)0, &closure));
error = grpc_byte_stream_pull(&stream2.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[i], output));
grpc_slice_unref_internal(output);
}
// Now read the second slice from stream1.
GPR_ASSERT(grpc_byte_stream_next(&stream1.base, ~(size_t)0, &closure));
error = grpc_byte_stream_pull(&stream1.base, &output);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_slice_eq(input[1], output));
grpc_slice_unref_internal(output);
// Clean up.
grpc_byte_stream_destroy(&stream1.base);
grpc_byte_stream_destroy(&stream2.base);
grpc_byte_stream_cache_destroy(&cache);
grpc_slice_buffer_destroy_internal(&buffer);
}
int main(int argc, char** argv) {
grpc_init();
grpc_test_init(argc, argv);
test_slice_buffer_stream_basic();
test_slice_buffer_stream_shutdown();
test_caching_byte_stream_basic();
test_caching_byte_stream_reset();
test_caching_byte_stream_shared_cache();
grpc_shutdown();
return 0;
}
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