1 files changed, 139 insertions, 0 deletions
diff --git a/test/core/echo/client.c b/test/core/echo/client.c
new file mode 100644
index 0000000000..1905863e11
--- /dev/null
+++ b/test/core/echo/client.c
@@ -0,0 +1,139 @@
+/*
+ *
+ * Copyright 2014, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <grpc/grpc.h>
+
+#include <string.h>
+
+#include <grpc/support/log.h>
+#include <grpc/support/time.h>
+#include <grpc/byte_buffer.h>
+#include "test/core/util/test_config.h"
+
+enum { WRITE_SLICE_LENGTH = 1024, TOTAL_BYTES = 102400 };
+
+/* Start write the next slice, fill slice.data[0..length - 1] with first % 256,
+   (first + 1) % 256, ... (first + length - 1) % 256.
+   Produce a GRPC_WRITE_ACCEPTED event  */
+static void start_write_next_slice(grpc_call *call, int first, int length) {
+  int i = 0;
+  grpc_byte_buffer *byte_buffer = NULL;
+  gpr_slice slice = gpr_slice_malloc(length);
+  for (i = 0; i < length; i++)
+    GPR_SLICE_START_PTR(slice)[i] = (first + i) % 256;
+  byte_buffer = grpc_byte_buffer_create(&slice, 1);
+  GPR_ASSERT(grpc_call_start_write(call, byte_buffer, (void *)1, 0) ==
+             GRPC_CALL_OK);
+  gpr_slice_unref(slice);
+  grpc_byte_buffer_destroy(byte_buffer);
+}
+
+int main(int argc, char **argv) {
+  grpc_channel *channel = NULL;
+  grpc_call *call = NULL;
+  grpc_event *ev = NULL;
+  grpc_byte_buffer_reader *bb_reader = NULL;
+  grpc_completion_queue *cq = NULL;
+  int bytes_written = 0;
+  int bytes_read = 0;
+  int i = 0;
+  int waiting_finishes;
+  gpr_slice read_slice;
+
+  grpc_test_init(argc, argv);
+
+  grpc_init();
+
+  cq = grpc_completion_queue_create();
+
+  GPR_ASSERT(argc == 2);
+  channel = grpc_channel_create(argv[1], NULL);
+  call = grpc_channel_create_call(channel, "/foo", "localhost", gpr_inf_future);
+  GPR_ASSERT(grpc_call_start_invoke(call, cq, (void *)1, (void *)1, (void *)1,
+                                    0) == GRPC_CALL_OK);
+  ev = grpc_completion_queue_next(cq, gpr_inf_future);
+  GPR_ASSERT(ev->data.invoke_accepted == GRPC_OP_OK);
+  grpc_event_finish(ev);
+
+  start_write_next_slice(call, bytes_written, WRITE_SLICE_LENGTH);
+  bytes_written += WRITE_SLICE_LENGTH;
+  GPR_ASSERT(grpc_call_start_read(call, (void *)1) == GRPC_CALL_OK);
+  waiting_finishes = 2;
+  while (waiting_finishes) {
+    ev = grpc_completion_queue_next(cq, gpr_inf_future);
+    switch (ev->type) {
+      case GRPC_WRITE_ACCEPTED:
+        if (bytes_written < TOTAL_BYTES) {
+          start_write_next_slice(call, bytes_written, WRITE_SLICE_LENGTH);
+          bytes_written += WRITE_SLICE_LENGTH;
+        } else {
+          GPR_ASSERT(grpc_call_writes_done(call, (void *)1) == GRPC_CALL_OK);
+        }
+        break;
+      case GRPC_CLIENT_METADATA_READ:
+        break;
+      case GRPC_READ:
+        bb_reader = grpc_byte_buffer_reader_create(ev->data.read);
+        while (grpc_byte_buffer_reader_next(bb_reader, &read_slice)) {
+          for (i = 0; i < GPR_SLICE_LENGTH(read_slice); i++) {
+            GPR_ASSERT(GPR_SLICE_START_PTR(read_slice)[i] == bytes_read % 256);
+            bytes_read++;
+          }
+          gpr_slice_unref(read_slice);
+        }
+        grpc_byte_buffer_reader_destroy(bb_reader);
+        if (bytes_read < TOTAL_BYTES) {
+          GPR_ASSERT(grpc_call_start_read(call, (void *)1) == GRPC_CALL_OK);
+        }
+        break;
+      case GRPC_FINISHED:
+      case GRPC_FINISH_ACCEPTED:
+        waiting_finishes--;
+        break;
+      default:
+        GPR_ASSERT(0 && "unexpected event");
+        break;
+    }
+    grpc_event_finish(ev);
+  }
+  GPR_ASSERT(bytes_read == TOTAL_BYTES);
+  gpr_log(GPR_INFO, "All data have been successfully echoed");
+
+  grpc_call_destroy(call);
+  grpc_channel_destroy(channel);
+  grpc_completion_queue_destroy(cq);
+
+  grpc_shutdown();
+
+  return 0;
+}