Revert "Revert "Metadata handling rewrite""

This reverts commit 5e01e2ac977655aa074faf7fde0a74298f5e4c55.

2 files changed, 15 insertions, 13 deletions

diff --git a/test/core/fling/client.c b/test/core/fling/client.c
index e717b7f7fe..bb44320f34 100644
--- a/test/core/fling/client.c
+++ b/test/core/fling/client.c
@@ -57,8 +57,7 @@ static grpc_metadata_array initial_metadata_recv;
 static grpc_metadata_array trailing_metadata_recv;
 static grpc_byte_buffer *response_payload_recv = NULL;
 static grpc_status_code status;
-static char *details = NULL;
-static size_t details_capacity = 0;
+static grpc_slice details;
 static grpc_op *op;
 
 static void init_ping_pong_request(void) {
@@ -86,15 +85,16 @@ static void init_ping_pong_request(void) {
   op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
   op->data.recv_status_on_client.status = &status;
   op->data.recv_status_on_client.status_details = &details;
-  op->data.recv_status_on_client.status_details_capacity = &details_capacity;
   op++;
 }
 
 static void step_ping_pong_request(void) {
   GPR_TIMER_BEGIN("ping_pong", 1);
-  call = grpc_channel_create_call(channel, NULL, GRPC_PROPAGATE_DEFAULTS, cq,
-                                  "/Reflector/reflectUnary", "localhost",
-                                  gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
+  grpc_slice host = grpc_slice_from_static_string("localhost");
+  call = grpc_channel_create_call(
+      channel, NULL, GRPC_PROPAGATE_DEFAULTS, cq,
+      grpc_slice_from_static_string("/Reflector/reflectUnary"), &host,
+      gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
   GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(call, ops,
                                                    (size_t)(op - ops),
                                                    (void *)1, NULL));
@@ -109,9 +109,11 @@ static void init_ping_pong_stream(void) {
   grpc_metadata_array_init(&initial_metadata_recv);
 
   grpc_call_error error;
-  call = grpc_channel_create_call(channel, NULL, GRPC_PROPAGATE_DEFAULTS, cq,
-                                  "/Reflector/reflectStream", "localhost",
-                                  gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
+  grpc_slice host = grpc_slice_from_static_string("localhost");
+  call = grpc_channel_create_call(
+      channel, NULL, GRPC_PROPAGATE_DEFAULTS, cq,
+      grpc_slice_from_static_string("/Reflector/reflectStream"), &host,
+      gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
   stream_init_ops[0].op = GRPC_OP_SEND_INITIAL_METADATA;
   stream_init_ops[0].data.send_initial_metadata.count = 0;
   stream_init_ops[1].op = GRPC_OP_RECV_INITIAL_METADATA;
diff --git a/test/core/fling/server.c b/test/core/fling/server.c
index fd446f1128..d4849e3bbe 100644
--- a/test/core/fling/server.c
+++ b/test/core/fling/server.c
@@ -118,7 +118,7 @@ static void handle_unary_method(void) {
   op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
   op->data.send_status_from_server.status = GRPC_STATUS_OK;
   op->data.send_status_from_server.trailing_metadata_count = 0;
-  op->data.send_status_from_server.status_details = "";
+  op->data.send_status_from_server.status_details = NULL;
   op++;
   op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
   op->data.recv_close_on_server.cancelled = &was_cancelled;
@@ -168,7 +168,7 @@ static void start_send_status(void) {
   status_op[0].op = GRPC_OP_SEND_STATUS_FROM_SERVER;
   status_op[0].data.send_status_from_server.status = GRPC_STATUS_OK;
   status_op[0].data.send_status_from_server.trailing_metadata_count = 0;
-  status_op[0].data.send_status_from_server.status_details = "";
+  status_op[0].data.send_status_from_server.status_details = NULL;
   status_op[1].op = GRPC_OP_RECV_CLOSE_ON_SERVER;
   status_op[1].data.recv_close_on_server.cancelled = &was_cancelled;
 
@@ -259,8 +259,8 @@ int main(int argc, char **argv) {
         switch ((intptr_t)s) {
           case FLING_SERVER_NEW_REQUEST:
             if (call != NULL) {
-              if (0 ==
-                  strcmp(call_details.method, "/Reflector/reflectStream")) {
+              if (0 == grpc_slice_str_cmp(call_details.method,
+                                          "/Reflector/reflectStream")) {
                 /* Received streaming call. Send metadata here. */
                 start_read_op(FLING_SERVER_READ_FOR_STREAMING);
                 send_initial_metadata();