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/*
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*
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* Copyright 2014, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <grpc/grpc.h>
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#include <string.h>
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#include <grpc/support/log.h>
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#include <grpc/support/time.h>
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#include <grpc/byte_buffer.h>
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#include "test/core/util/test_config.h"
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enum { WRITE_SLICE_LENGTH = 1024, TOTAL_BYTES = 102400 };
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/* Start write the next slice, fill slice.data[0..length - 1] with first % 256,
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(first + 1) % 256, ... (first + length - 1) % 256.
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Produce a GRPC_WRITE_ACCEPTED event */
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static void start_write_next_slice(grpc_call *call, int first, int length) {
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int i = 0;
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grpc_byte_buffer *byte_buffer = NULL;
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gpr_slice slice = gpr_slice_malloc(length);
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for (i = 0; i < length; i++)
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GPR_SLICE_START_PTR(slice)[i] = (first + i) % 256;
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byte_buffer = grpc_byte_buffer_create(&slice, 1);
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GPR_ASSERT(grpc_call_start_write(call, byte_buffer, (void *)1, 0) ==
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GRPC_CALL_OK);
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gpr_slice_unref(slice);
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grpc_byte_buffer_destroy(byte_buffer);
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}
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int main(int argc, char **argv) {
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grpc_channel *channel = NULL;
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grpc_call *call = NULL;
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grpc_event *ev = NULL;
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grpc_byte_buffer_reader *bb_reader = NULL;
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grpc_completion_queue *cq = NULL;
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int bytes_written = 0;
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int bytes_read = 0;
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unsigned i = 0;
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int waiting_finishes;
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gpr_slice read_slice;
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grpc_test_init(argc, argv);
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grpc_init();
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cq = grpc_completion_queue_create();
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GPR_ASSERT(argc == 2);
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channel = grpc_channel_create(argv[1], NULL);
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call = grpc_channel_create_call(
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channel, "/foo", "localhost",
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gpr_time_add(gpr_time_from_seconds(5), gpr_now()));
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GPR_ASSERT(grpc_call_invoke(call, cq, (void *)1, (void *)1, 0) ==
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GRPC_CALL_OK);
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start_write_next_slice(call, bytes_written, WRITE_SLICE_LENGTH);
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bytes_written += WRITE_SLICE_LENGTH;
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GPR_ASSERT(grpc_call_start_read(call, (void *)1) == GRPC_CALL_OK);
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waiting_finishes = 2;
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while (waiting_finishes) {
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ev = grpc_completion_queue_next(cq, gpr_inf_future);
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switch (ev->type) {
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case GRPC_WRITE_ACCEPTED:
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if (bytes_written < TOTAL_BYTES) {
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start_write_next_slice(call, bytes_written, WRITE_SLICE_LENGTH);
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bytes_written += WRITE_SLICE_LENGTH;
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} else {
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GPR_ASSERT(grpc_call_writes_done(call, (void *)1) == GRPC_CALL_OK);
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}
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break;
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case GRPC_CLIENT_METADATA_READ:
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break;
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case GRPC_READ:
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bb_reader = grpc_byte_buffer_reader_create(ev->data.read);
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while (grpc_byte_buffer_reader_next(bb_reader, &read_slice)) {
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for (i = 0; i < GPR_SLICE_LENGTH(read_slice); i++) {
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GPR_ASSERT(GPR_SLICE_START_PTR(read_slice)[i] == bytes_read % 256);
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bytes_read++;
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}
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gpr_slice_unref(read_slice);
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}
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grpc_byte_buffer_reader_destroy(bb_reader);
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if (bytes_read < TOTAL_BYTES) {
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GPR_ASSERT(grpc_call_start_read(call, (void *)1) == GRPC_CALL_OK);
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}
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break;
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case GRPC_FINISHED:
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case GRPC_FINISH_ACCEPTED:
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waiting_finishes--;
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break;
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default:
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GPR_ASSERT(0 && "unexpected event");
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break;
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}
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grpc_event_finish(ev);
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}
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GPR_ASSERT(bytes_read == TOTAL_BYTES);
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gpr_log(GPR_INFO, "All data have been successfully echoed");
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grpc_call_destroy(call);
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grpc_channel_destroy(channel);
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grpc_completion_queue_destroy(cq);
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grpc_shutdown();
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return 0;
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}
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