1 files changed, 52 insertions, 43 deletions

diff --git a/src/core/httpcli/httpcli.c b/src/core/httpcli/httpcli.c
index 9012070e8e..1e38479eb1 100644
--- a/src/core/httpcli/httpcli.c
+++ b/src/core/httpcli/httpcli.c
@@ -61,6 +61,10 @@ typedef struct {
   grpc_httpcli_context *context;
   grpc_pollset *pollset;
   grpc_iomgr_object iomgr_obj;
+  gpr_slice_buffer incoming;
+  gpr_slice_buffer outgoing;
+  grpc_iomgr_closure on_read;
+  grpc_iomgr_closure done_write;
 } internal_request;
 
 static grpc_httpcli_get_override g_get_override = NULL;
@@ -99,73 +103,70 @@ static void finish(internal_request *req, int success) {
   gpr_slice_unref(req->request_text);
   gpr_free(req->host);
   grpc_iomgr_unregister_object(&req->iomgr_obj);
+  gpr_slice_buffer_destroy(&req->incoming);
+  gpr_slice_buffer_destroy(&req->outgoing);
   gpr_free(req);
 }
 
-static void on_read(void *user_data, gpr_slice *slices, size_t nslices,
-                    grpc_endpoint_cb_status status) {
+static void on_read(void *user_data, int success);
+
+static void do_read(internal_request *req) {
+  switch (grpc_endpoint_read(req->ep, &req->incoming, &req->on_read)) {
+    case GRPC_ENDPOINT_DONE:
+      on_read(req, 1);
+      break;
+    case GRPC_ENDPOINT_PENDING:
+      break;
+    case GRPC_ENDPOINT_ERROR:
+      on_read(req, 0);
+      break;
+  }
+}
+
+static void on_read(void *user_data, int success) {
   internal_request *req = user_data;
   size_t i;
 
-  for (i = 0; i < nslices; i++) {
-    if (GPR_SLICE_LENGTH(slices[i])) {
+  for (i = 0; i < req->incoming.count; i++) {
+    if (GPR_SLICE_LENGTH(req->incoming.slices[i])) {
       req->have_read_byte = 1;
-      if (!grpc_httpcli_parser_parse(&req->parser, slices[i])) {
+      if (!grpc_httpcli_parser_parse(&req->parser, req->incoming.slices[i])) {
         finish(req, 0);
-        goto done;
+        return;
       }
     }
   }
 
-  switch (status) {
-    case GRPC_ENDPOINT_CB_OK:
-      grpc_endpoint_notify_on_read(req->ep, on_read, req);
-      break;
-    case GRPC_ENDPOINT_CB_EOF:
-    case GRPC_ENDPOINT_CB_ERROR:
-    case GRPC_ENDPOINT_CB_SHUTDOWN:
-      if (!req->have_read_byte) {
-        next_address(req);
-      } else {
-        finish(req, grpc_httpcli_parser_eof(&req->parser));
-      }
-      break;
-  }
-
-done:
-  for (i = 0; i < nslices; i++) {
-    gpr_slice_unref(slices[i]);
+  if (success) {
+    do_read(req);
+  } else if (!req->have_read_byte) {
+    next_address(req);
+  } else {
+    finish(req, grpc_httpcli_parser_eof(&req->parser));
   }
 }
 
-static void on_written(internal_request *req) {
-  grpc_endpoint_notify_on_read(req->ep, on_read, req);
-}
+static void on_written(internal_request *req) { do_read(req); }
 
-static void done_write(void *arg, grpc_endpoint_cb_status status) {
+static void done_write(void *arg, int success) {
   internal_request *req = arg;
-  switch (status) {
-    case GRPC_ENDPOINT_CB_OK:
-      on_written(req);
-      break;
-    case GRPC_ENDPOINT_CB_EOF:
-    case GRPC_ENDPOINT_CB_SHUTDOWN:
-    case GRPC_ENDPOINT_CB_ERROR:
-      next_address(req);
-      break;
+  if (success) {
+    on_written(req);
+  } else {
+    next_address(req);
   }
 }
 
 static void start_write(internal_request *req) {
   gpr_slice_ref(req->request_text);
-  switch (
-      grpc_endpoint_write(req->ep, &req->request_text, 1, done_write, req)) {
-    case GRPC_ENDPOINT_WRITE_DONE:
+  gpr_slice_buffer_add(&req->outgoing, req->request_text);
+  switch (grpc_endpoint_write(req->ep, &req->outgoing, &req->done_write)) {
+    case GRPC_ENDPOINT_DONE:
       on_written(req);
       break;
-    case GRPC_ENDPOINT_WRITE_PENDING:
+    case GRPC_ENDPOINT_PENDING:
       break;
-    case GRPC_ENDPOINT_WRITE_ERROR:
+    case GRPC_ENDPOINT_ERROR:
       finish(req, 0);
       break;
   }
@@ -237,6 +238,10 @@ void grpc_httpcli_get(grpc_httpcli_context *context, grpc_pollset *pollset,
       request->handshaker ? request->handshaker : &grpc_httpcli_plaintext;
   req->context = context;
   req->pollset = pollset;
+  grpc_iomgr_closure_init(&req->on_read, on_read, req);
+  grpc_iomgr_closure_init(&req->done_write, done_write, req);
+  gpr_slice_buffer_init(&req->incoming);
+  gpr_slice_buffer_init(&req->outgoing);
   gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->path);
   grpc_iomgr_register_object(&req->iomgr_obj, name);
   gpr_free(name);
@@ -270,7 +275,11 @@ void grpc_httpcli_post(grpc_httpcli_context *context, grpc_pollset *pollset,
       request->handshaker ? request->handshaker : &grpc_httpcli_plaintext;
   req->context = context;
   req->pollset = pollset;
-  gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->path);
+  grpc_iomgr_closure_init(&req->on_read, on_read, req);
+  grpc_iomgr_closure_init(&req->done_write, done_write, req);
+  gpr_slice_buffer_init(&req->incoming);
+  gpr_slice_buffer_init(&req->outgoing);
+  gpr_asprintf(&name, "HTTP:POST:%s:%s", request->host, request->path);
   grpc_iomgr_register_object(&req->iomgr_obj, name);
   gpr_free(name);
   req->host = gpr_strdup(request->host);