addressed comments from review

modified comment about when GET verb is used.
Added code to read data from send_message and defer the op when
  it is not fully available.
clang-format one more time.

3 files changed, 251 insertions, 156 deletions

diff --git a/src/core/lib/channel/http_client_filter.c b/src/core/lib/channel/http_client_filter.c
index 3647c33049..26d6dcce78 100644
--- a/src/core/lib/channel/http_client_filter.c
+++ b/src/core/lib/channel/http_client_filter.c
@@ -55,14 +55,28 @@ typedef struct call_data {
   grpc_metadata_batch *recv_initial_metadata;
   uint8_t *payload_bytes;
 
+  /* Vars to read data off of send_message */
+  grpc_transport_stream_op send_op;
+  uint32_t send_length;
+  uint32_t send_flags;
+  gpr_slice incoming_slice;
+  grpc_slice_buffer_stream replacement_stream;
+  gpr_slice_buffer slices;
+  /* flag that indicates that all slices of send_messages aren't availble */
+  bool send_message_blocked;
+
   /** Closure to call when finished with the hc_on_recv hook */
   grpc_closure *on_done_recv;
   grpc_closure *on_complete;
+  grpc_closure *post_send;
+
   /** Receive closures are chained: we inject this closure as the on_done_recv
       up-call on transport_op, and remember to call our on_done_recv member
       after handling it. */
   grpc_closure hc_on_recv;
   grpc_closure hc_on_complete;
+  grpc_closure got_slice;
+  grpc_closure send_done;
 } call_data;
 
 typedef struct channel_data {
@@ -135,6 +149,13 @@ static void hc_on_complete(grpc_exec_ctx *exec_ctx, void *user_data,
   calld->on_complete->cb(exec_ctx, calld->on_complete->cb_arg, error);
 }
 
+static void send_done(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) {
+  grpc_call_element *elem = elemp;
+  call_data *calld = elem->call_data;
+  gpr_slice_buffer_reset_and_unref(&calld->slices);
+  calld->post_send->cb(exec_ctx, calld->post_send->cb_arg, error);
+}
+
 static grpc_mdelem *client_strip_filter(void *user_data, grpc_mdelem *md) {
   /* eat the things we'd like to set ourselves */
   if (md->key == GRPC_MDSTR_METHOD) return NULL;
@@ -145,53 +166,95 @@ static grpc_mdelem *client_strip_filter(void *user_data, grpc_mdelem *md) {
   return md;
 }
 
-static void hc_mutate_op(grpc_call_element *elem,
+static void continue_send_message(grpc_exec_ctx *exec_ctx,
+  grpc_call_element *elem) {
+  call_data *calld = elem->call_data;
+  uint8_t *wrptr = calld->payload_bytes;
+  while (grpc_byte_stream_next(exec_ctx, calld->send_op.send_message,
+    &calld->incoming_slice, ~(size_t)0,
+    &calld->got_slice)) {
+    memcpy(wrptr, GPR_SLICE_START_PTR(calld->incoming_slice), GPR_SLICE_LENGTH(calld->incoming_slice));
+    wrptr += GPR_SLICE_LENGTH(calld->incoming_slice);
+    gpr_slice_buffer_add(&calld->slices, calld->incoming_slice);
+    if (calld->send_length == calld->slices.length) {
+      calld->send_message_blocked = false;
+      break;
+    }
+  }
+}
+
+static void got_slice(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) {
+  grpc_call_element *elem = elemp;
+  call_data *calld = elem->call_data;
+  calld->send_message_blocked = false;
+  gpr_slice_buffer_add(&calld->slices, calld->incoming_slice);
+  if (calld->send_length == calld->slices.length) {
+    /* Pass down the original send_message op that was blocked.*/
+    grpc_slice_buffer_stream_init(&calld->replacement_stream, &calld->slices,
+      calld->send_flags);
+    calld->send_op.send_message = &calld->replacement_stream.base;
+    calld->post_send = calld->send_op.on_complete;
+    calld->send_op.on_complete = &calld->send_done;
+    grpc_call_next_op(exec_ctx, elem, &calld->send_op);
+  }
+  else {
+    continue_send_message(exec_ctx, elem);
+  }
+}
+
+static void hc_mutate_op(grpc_exec_ctx *exec_ctx,
+                         grpc_call_element *elem,
                          grpc_transport_stream_op *op) {
   /* grab pointers to our data from the call element */
   call_data *calld = elem->call_data;
   channel_data *channeld = elem->channel_data;
 
-  /* Decide which HTTP VERB to use */
+  /* Decide which HTTP VERB to use. We use GET if the request is marked
+  cacheable, and the operation contains both initial metadata and send message,
+  and the payload is below the size threshold, and all the data
+  for this request is immediately available. */
   grpc_mdelem *method = GRPC_MDELEM_METHOD_POST;
+  calld->send_message_blocked = false;
   if (op->send_initial_metadata != NULL && (op->send_initial_metadata_flags &
        GRPC_INITIAL_METADATA_CACHEABLE_REQUEST) &&
       op->send_message != NULL &&
       op->send_message->length < channeld->max_payload_size_for_get) {
     method = GRPC_MDELEM_METHOD_GET;
+    calld->send_message_blocked = true;
   } else if (op->send_initial_metadata_flags &
              GRPC_INITIAL_METADATA_IDEMPOTENT_REQUEST) {
     method = GRPC_MDELEM_METHOD_PUT;
   }
-
+  /* Attempt to read the data from send_message and create a header field. */
   if (method == GRPC_MDELEM_METHOD_GET) {
-    gpr_slice slice;
-    gpr_slice_buffer slices;
-    gpr_slice_buffer_init(&slices);
     /* allocate memory to hold the entire payload */
     calld->payload_bytes = gpr_malloc(op->send_message->length);
     GPR_ASSERT(calld->payload_bytes);
-    uint8_t *wrptr = calld->payload_bytes;
-
-    /* copy payload from slices into payload_bytes. It gets freed in
-     * op_complete*/
-    while (grpc_byte_stream_next(NULL, op->send_message, &slice, ~(size_t)0,
-                                 NULL)) {
-      memcpy(wrptr, GPR_SLICE_START_PTR(slice), GPR_SLICE_LENGTH(slice));
-      wrptr += GPR_SLICE_LENGTH(slice);
-      gpr_slice_buffer_add(&slices, slice);
-      if (op->send_message->length == slices.length) {
-        grpc_mdelem *payload_bin = grpc_mdelem_from_metadata_strings(
-            GRPC_MDSTR_GRPC_PAYLOAD_BIN,
-            grpc_mdstr_from_buffer(calld->payload_bytes,
-                                   op->send_message->length));
-        grpc_metadata_batch_add_tail(op->send_initial_metadata,
-                                     &calld->payload_bin, payload_bin);
-        break;
-      }
+
+    /* read slices of send_message and copy into payload_bytes */
+    calld->send_op = *op;
+    calld->send_length = op->send_message->length;
+    calld->send_flags = op->send_message->flags;
+    continue_send_message(exec_ctx, elem);
+
+    if (calld->send_message_blocked == false) {
+      /* when all the send_message data is available, then create a MDELEM and
+      append to headers */
+      grpc_mdelem *payload_bin = grpc_mdelem_from_metadata_strings(
+        GRPC_MDSTR_GRPC_PAYLOAD_BIN,
+        grpc_mdstr_from_buffer(calld->payload_bytes,
+          op->send_message->length));
+      grpc_metadata_batch_add_tail(op->send_initial_metadata,
+        &calld->payload_bin, payload_bin);
+      calld->on_complete = op->on_complete;
+      op->on_complete = &calld->hc_on_complete;
+      op->send_message = NULL;
+    } else {
+      /* Not all data is available. Fall back to POST. */
+      gpr_log(GPR_DEBUG, "Request is marked Cacheable but not all data is available.\
+                          Falling back to POST");
+      method = GRPC_MDELEM_METHOD_POST;
     }
-    calld->on_complete = op->on_complete;
-    op->on_complete = &calld->hc_on_complete;
-    op->send_message = NULL;
   }
 
   if (op->send_initial_metadata != NULL) {
@@ -225,9 +288,16 @@ static void hc_start_transport_op(grpc_exec_ctx *exec_ctx,
                                   grpc_transport_stream_op *op) {
   GPR_TIMER_BEGIN("hc_start_transport_op", 0);
   GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
-  hc_mutate_op(elem, op);
+  hc_mutate_op(exec_ctx, elem, op);
   GPR_TIMER_END("hc_start_transport_op", 0);
-  grpc_call_next_op(exec_ctx, elem, op);
+  call_data *calld = elem->call_data;
+  if (op->send_message != NULL && calld->send_message_blocked) {
+    /* Don't forward the op. send_message contains slices that aren't ready
+    yet. The call will be forwarded by the op_complete of slice read call.
+    */
+  } else {
+    grpc_call_next_op(exec_ctx, elem, op);
+  }
 }
 
 /* Constructor for call_data */
@@ -238,15 +308,21 @@ static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx,
   calld->on_done_recv = NULL;
   calld->on_complete = NULL;
   calld->payload_bytes = NULL;
+  gpr_slice_buffer_init(&calld->slices);
   grpc_closure_init(&calld->hc_on_recv, hc_on_recv, elem);
   grpc_closure_init(&calld->hc_on_complete, hc_on_complete, elem);
+  grpc_closure_init(&calld->got_slice, got_slice, elem);
+  grpc_closure_init(&calld->send_done, send_done, elem);
   return GRPC_ERROR_NONE;
 }
 
 /* Destructor for call_data */
 static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
                               const grpc_call_final_info *final_info,
-                              void *ignored) {}
+                              void *ignored) {
+  call_data *calld = elem->call_data;
+  gpr_slice_buffer_destroy(&calld->slices);
+}
 
 static grpc_mdelem *scheme_from_args(const grpc_channel_args *args) {
   unsigned i;
diff --git a/src/core/lib/transport/static_metadata.c b/src/core/lib/transport/static_metadata.c
index 7d3c5f50b8..fce591f346 100644
--- a/src/core/lib/transport/static_metadata.c
+++ b/src/core/lib/transport/static_metadata.c
@@ -1,11 +1,11 @@
 /*
  * Copyright 2015, 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
@@ -15,7 +15,7 @@
  *     * 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
@@ -31,10 +31,10 @@
 
 /*
  * WARNING: Auto-generated code.
- * 
+ *
  * To make changes to this file, change
  * tools/codegen/core/gen_static_metadata.py, and then re-run it.
- * 
+ *
  * See metadata.h for an explanation of the interface here, and metadata.c for
  * an explanation of what's going on.
  */
@@ -45,110 +45,116 @@ grpc_mdstr grpc_static_mdstr_table[GRPC_STATIC_MDSTR_COUNT];
 
 grpc_mdelem grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT];
 uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT] = {
-  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,8,6,2,4,8,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
-};
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 4, 8, 6, 2, 4, 8, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 
-const uint8_t grpc_static_metadata_elem_indices[GRPC_STATIC_MDELEM_COUNT*2] = {
-11,33,10,33,12,33,12,50,13,33,14,33,15,33,16,33,17,33,19,33,20,33,21,33,22,33,23,33,24,33,25,33,26,33,27,33,28,18,28,33,29,33,30,33,34,33,35,33,36,33,37,33,40,31,40,32,40,49,40,54,40,55,40,56,40,57,42,31,42,49,42,54,46,0,46,1,46,2,51,33,58,33,59,33,60,33,61,33,62,33,63,33,64,33,65,33,66,33,67,33,68,33,69,38,69,71,69,74,70,82,70,83,72,33,73,33,75,33,76,33,77,33,78,33,79,39,79,52,79,53,80,33,81,33,84,3,84,4,84,5,84,6,84,7,84,8,84,9,85,33,86,87,88,33,89,33,90,33,91,33,92,33
-};
+const uint8_t grpc_static_metadata_elem_indices[GRPC_STATIC_MDELEM_COUNT * 2] =
+    {11, 33, 10, 33, 12, 33, 12, 50, 13, 33, 14, 33, 15, 33, 16, 33, 17, 33,
+     19, 33, 20, 33, 21, 33, 22, 33, 23, 33, 24, 33, 25, 33, 26, 33, 27, 33,
+     28, 18, 28, 33, 29, 33, 30, 33, 34, 33, 35, 33, 36, 33, 37, 33, 40, 31,
+     40, 32, 40, 49, 40, 54, 40, 55, 40, 56, 40, 57, 42, 31, 42, 49, 42, 54,
+     46, 0,  46, 1,  46, 2,  51, 33, 58, 33, 59, 33, 60, 33, 61, 33, 62, 33,
+     63, 33, 64, 33, 65, 33, 66, 33, 67, 33, 68, 33, 69, 38, 69, 71, 69, 74,
+     70, 82, 70, 83, 72, 33, 73, 33, 75, 33, 76, 33, 77, 33, 78, 33, 79, 39,
+     79, 52, 79, 53, 80, 33, 81, 33, 84, 3,  84, 4,  84, 5,  84, 6,  84, 7,
+     84, 8,  84, 9,  85, 33, 86, 87, 88, 33, 89, 33, 90, 33, 91, 33, 92, 33};
 
 const char *const grpc_static_metadata_strings[GRPC_STATIC_MDSTR_COUNT] = {
-  "0",
-  "1",
-  "2",
-  "200",
-  "204",
-  "206",
-  "304",
-  "400",
-  "404",
-  "500",
-  "accept",
-  "accept-charset",
-  "accept-encoding",
-  "accept-language",
-  "accept-ranges",
-  "access-control-allow-origin",
-  "age",
-  "allow",
-  "application/grpc",
-  ":authority",
-  "authorization",
-  "cache-control",
-  "content-disposition",
-  "content-encoding",
-  "content-language",
-  "content-length",
-  "content-location",
-  "content-range",
-  "content-type",
-  "cookie",
-  "date",
-  "deflate",
-  "deflate,gzip",
-  "",
-  "etag",
-  "expect",
-  "expires",
-  "from",
-  "GET",
-  "grpc",
-  "grpc-accept-encoding",
-  "grpc-census-bin",
-  "grpc-encoding",
-  "grpc-internal-encoding-request",
-  "grpc-message",
-  "grpc-payload-bin",
-  "grpc-status",
-  "grpc-timeout",
-  "grpc-tracing-bin",
-  "gzip",
-  "gzip, deflate",
-  "host",
-  "http",
-  "https",
-  "identity",
-  "identity,deflate",
-  "identity,deflate,gzip",
-  "identity,gzip",
-  "if-match",
-  "if-modified-since",
-  "if-none-match",
-  "if-range",
-  "if-unmodified-since",
-  "last-modified",
-  "link",
-  "load-reporting-initial",
-  "load-reporting-trailing",
-  "location",
-  "max-forwards",
-  ":method",
-  ":path",
-  "POST",
-  "proxy-authenticate",
-  "proxy-authorization",
-  "PUT",
-  "range",
-  "referer",
-  "refresh",
-  "retry-after",
-  ":scheme",
-  "server",
-  "set-cookie",
-  "/",
-  "/index.html",
-  ":status",
-  "strict-transport-security",
-  "te",
-  "trailers",
-  "transfer-encoding",
-  "user-agent",
-  "vary",
-  "via",
-  "www-authenticate"
-};
-
-const uint8_t grpc_static_accept_encoding_metadata[8] = {
-0,29,26,30,28,32,27,31
-};
+    "0",
+    "1",
+    "2",
+    "200",
+    "204",
+    "206",
+    "304",
+    "400",
+    "404",
+    "500",
+    "accept",
+    "accept-charset",
+    "accept-encoding",
+    "accept-language",
+    "accept-ranges",
+    "access-control-allow-origin",
+    "age",
+    "allow",
+    "application/grpc",
+    ":authority",
+    "authorization",
+    "cache-control",
+    "content-disposition",
+    "content-encoding",
+    "content-language",
+    "content-length",
+    "content-location",
+    "content-range",
+    "content-type",
+    "cookie",
+    "date",
+    "deflate",
+    "deflate,gzip",
+    "",
+    "etag",
+    "expect",
+    "expires",
+    "from",
+    "GET",
+    "grpc",
+    "grpc-accept-encoding",
+    "grpc-census-bin",
+    "grpc-encoding",
+    "grpc-internal-encoding-request",
+    "grpc-message",
+    "grpc-payload-bin",
+    "grpc-status",
+    "grpc-timeout",
+    "grpc-tracing-bin",
+    "gzip",
+    "gzip, deflate",
+    "host",
+    "http",
+    "https",
+    "identity",
+    "identity,deflate",
+    "identity,deflate,gzip",
+    "identity,gzip",
+    "if-match",
+    "if-modified-since",
+    "if-none-match",
+    "if-range",
+    "if-unmodified-since",
+    "last-modified",
+    "link",
+    "load-reporting-initial",
+    "load-reporting-trailing",
+    "location",
+    "max-forwards",
+    ":method",
+    ":path",
+    "POST",
+    "proxy-authenticate",
+    "proxy-authorization",
+    "PUT",
+    "range",
+    "referer",
+    "refresh",
+    "retry-after",
+    ":scheme",
+    "server",
+    "set-cookie",
+    "/",
+    "/index.html",
+    ":status",
+    "strict-transport-security",
+    "te",
+    "trailers",
+    "transfer-encoding",
+    "user-agent",
+    "vary",
+    "via",
+    "www-authenticate"};
 
+const uint8_t grpc_static_accept_encoding_metadata[8] = {0,  29, 26, 30,
+                                                         28, 32, 27, 31};
diff --git a/src/core/lib/transport/static_metadata.h b/src/core/lib/transport/static_metadata.h
index 013faf7a5a..54b6f38be1 100644
--- a/src/core/lib/transport/static_metadata.h
+++ b/src/core/lib/transport/static_metadata.h
@@ -1,11 +1,11 @@
 /*
  * Copyright 2015, 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
@@ -15,7 +15,7 @@
  *     * 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
@@ -31,10 +31,10 @@
 
 /*
  * WARNING: Auto-generated code.
- * 
+ *
  * To make changes to this file, change
  * tools/codegen/core/gen_static_metadata.py, and then re-run it.
- * 
+ *
  * See metadata.h for an explanation of the interface here, and metadata.c for
  * an explanation of what's going on.
  */
@@ -159,7 +159,8 @@ extern grpc_mdstr grpc_static_mdstr_table[GRPC_STATIC_MDSTR_COUNT];
 /* "identity,deflate" */
 #define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE (&grpc_static_mdstr_table[55])
 /* "identity,deflate,gzip" */
-#define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE_COMMA_GZIP (&grpc_static_mdstr_table[56])
+#define GRPC_MDSTR_IDENTITY_COMMA_DEFLATE_COMMA_GZIP \
+  (&grpc_static_mdstr_table[56])
 /* "identity,gzip" */
 #define GRPC_MDSTR_IDENTITY_COMMA_GZIP (&grpc_static_mdstr_table[57])
 /* "if-match" */
@@ -243,13 +244,15 @@ extern uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];
 /* "accept-encoding": "" */
 #define GRPC_MDELEM_ACCEPT_ENCODING_EMPTY (&grpc_static_mdelem_table[2])
 /* "accept-encoding": "gzip, deflate" */
-#define GRPC_MDELEM_ACCEPT_ENCODING_GZIP_COMMA_DEFLATE (&grpc_static_mdelem_table[3])
+#define GRPC_MDELEM_ACCEPT_ENCODING_GZIP_COMMA_DEFLATE \
+  (&grpc_static_mdelem_table[3])
 /* "accept-language": "" */
 #define GRPC_MDELEM_ACCEPT_LANGUAGE_EMPTY (&grpc_static_mdelem_table[4])
 /* "accept-ranges": "" */
 #define GRPC_MDELEM_ACCEPT_RANGES_EMPTY (&grpc_static_mdelem_table[5])
 /* "access-control-allow-origin": "" */
-#define GRPC_MDELEM_ACCESS_CONTROL_ALLOW_ORIGIN_EMPTY (&grpc_static_mdelem_table[6])
+#define GRPC_MDELEM_ACCESS_CONTROL_ALLOW_ORIGIN_EMPTY \
+  (&grpc_static_mdelem_table[6])
 /* "age": "" */
 #define GRPC_MDELEM_AGE_EMPTY (&grpc_static_mdelem_table[7])
 /* "allow": "" */
@@ -273,7 +276,8 @@ extern uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];
 /* "content-range": "" */
 #define GRPC_MDELEM_CONTENT_RANGE_EMPTY (&grpc_static_mdelem_table[17])
 /* "content-type": "application/grpc" */
-#define GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC (&grpc_static_mdelem_table[18])
+#define GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC \
+  (&grpc_static_mdelem_table[18])
 /* "content-type": "" */
 #define GRPC_MDELEM_CONTENT_TYPE_EMPTY (&grpc_static_mdelem_table[19])
 /* "cookie": "" */
@@ -291,17 +295,22 @@ extern uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];
 /* "grpc-accept-encoding": "deflate" */
 #define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_DEFLATE (&grpc_static_mdelem_table[26])
 /* "grpc-accept-encoding": "deflate,gzip" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_DEFLATE_COMMA_GZIP (&grpc_static_mdelem_table[27])
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_DEFLATE_COMMA_GZIP \
+  (&grpc_static_mdelem_table[27])
 /* "grpc-accept-encoding": "gzip" */
 #define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_GZIP (&grpc_static_mdelem_table[28])
 /* "grpc-accept-encoding": "identity" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY (&grpc_static_mdelem_table[29])
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY \
+  (&grpc_static_mdelem_table[29])
 /* "grpc-accept-encoding": "identity,deflate" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE (&grpc_static_mdelem_table[30])
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE \
+  (&grpc_static_mdelem_table[30])
 /* "grpc-accept-encoding": "identity,deflate,gzip" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE_COMMA_GZIP (&grpc_static_mdelem_table[31])
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE_COMMA_GZIP \
+  (&grpc_static_mdelem_table[31])
 /* "grpc-accept-encoding": "identity,gzip" */
-#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_GZIP (&grpc_static_mdelem_table[32])
+#define GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_GZIP \
+  (&grpc_static_mdelem_table[32])
 /* "grpc-encoding": "deflate" */
 #define GRPC_MDELEM_GRPC_ENCODING_DEFLATE (&grpc_static_mdelem_table[33])
 /* "grpc-encoding": "gzip" */
@@ -333,7 +342,8 @@ extern uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];
 /* "load-reporting-initial": "" */
 #define GRPC_MDELEM_LOAD_REPORTING_INITIAL_EMPTY (&grpc_static_mdelem_table[47])
 /* "load-reporting-trailing": "" */
-#define GRPC_MDELEM_LOAD_REPORTING_TRAILING_EMPTY (&grpc_static_mdelem_table[48])
+#define GRPC_MDELEM_LOAD_REPORTING_TRAILING_EMPTY \
+  (&grpc_static_mdelem_table[48])
 /* "location": "" */
 #define GRPC_MDELEM_LOCATION_EMPTY (&grpc_static_mdelem_table[49])
 /* "max-forwards": "" */
@@ -385,7 +395,8 @@ extern uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];
 /* ":status": "500" */
 #define GRPC_MDELEM_STATUS_500 (&grpc_static_mdelem_table[73])
 /* "strict-transport-security": "" */
-#define GRPC_MDELEM_STRICT_TRANSPORT_SECURITY_EMPTY (&grpc_static_mdelem_table[74])
+#define GRPC_MDELEM_STRICT_TRANSPORT_SECURITY_EMPTY \
+  (&grpc_static_mdelem_table[74])
 /* "te": "trailers" */
 #define GRPC_MDELEM_TE_TRAILERS (&grpc_static_mdelem_table[75])
 /* "transfer-encoding": "" */
@@ -399,8 +410,10 @@ extern uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];
 /* "www-authenticate": "" */
 #define GRPC_MDELEM_WWW_AUTHENTICATE_EMPTY (&grpc_static_mdelem_table[80])
 
-extern const uint8_t grpc_static_metadata_elem_indices[GRPC_STATIC_MDELEM_COUNT*2];
+extern const uint8_t
+    grpc_static_metadata_elem_indices[GRPC_STATIC_MDELEM_COUNT * 2];
 extern const char *const grpc_static_metadata_strings[GRPC_STATIC_MDSTR_COUNT];
 extern const uint8_t grpc_static_accept_encoding_metadata[8];
-#define GRPC_MDELEM_ACCEPT_ENCODING_FOR_ALGORITHMS(algs) (&grpc_static_mdelem_table[grpc_static_accept_encoding_metadata[(algs)]])
+#define GRPC_MDELEM_ACCEPT_ENCODING_FOR_ALGORITHMS(algs) \
+  (&grpc_static_mdelem_table[grpc_static_accept_encoding_metadata[(algs)]])
 #endif /* GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H */