1 files changed, 0 insertions, 421 deletions

diff --git a/grpc/src/core/lib/iomgr/tcp_uv.cc b/grpc/src/core/lib/iomgr/tcp_uv.cc
deleted file mode 100644
index 8f64d22b..00000000
--- a/grpc/src/core/lib/iomgr/tcp_uv.cc
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- *
- * Copyright 2016 gRPC authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-#include <grpc/support/port_platform.h>
-
-#include "src/core/lib/iomgr/port.h"
-
-#ifdef GRPC_UV
-#include <limits.h>
-#include <string.h>
-
-#include <grpc/slice_buffer.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/string_util.h>
-
-#include "src/core/lib/gpr/string.h"
-#include "src/core/lib/iomgr/error.h"
-#include "src/core/lib/iomgr/iomgr_custom.h"
-#include "src/core/lib/iomgr/resolve_address_custom.h"
-#include "src/core/lib/iomgr/resource_quota.h"
-#include "src/core/lib/iomgr/tcp_custom.h"
-#include "src/core/lib/slice/slice_internal.h"
-#include "src/core/lib/slice/slice_string_helpers.h"
-
-#include <uv.h>
-
-#define IGNORE_CONST(addr) ((grpc_sockaddr*)(uintptr_t)(addr))
-
-typedef struct uv_socket_t {
-  uv_connect_t connect_req;
-  uv_write_t write_req;
-  uv_shutdown_t shutdown_req;
-  uv_tcp_t* handle;
-  uv_buf_t* write_buffers;
-
-  char* read_buf;
-  size_t read_len;
-
-  int pending_connections;
-  grpc_custom_socket* accept_socket;
-  grpc_error_handle accept_error;
-
-  grpc_custom_connect_callback connect_cb;
-  grpc_custom_write_callback write_cb;
-  grpc_custom_read_callback read_cb;
-  grpc_custom_accept_callback accept_cb;
-  grpc_custom_close_callback close_cb;
-
-} uv_socket_t;
-
-static grpc_error_handle tcp_error_create(const char* desc, int status) {
-  if (status == 0) {
-    return GRPC_ERROR_NONE;
-  }
-  grpc_error_handle error = GRPC_ERROR_CREATE_FROM_STATIC_STRING(desc);
-  /* All tcp errors are marked with UNAVAILABLE so that application may
-   * choose to retry. */
-  error = grpc_error_set_int(error, GRPC_ERROR_INT_GRPC_STATUS,
-                             GRPC_STATUS_UNAVAILABLE);
-  return grpc_error_set_str(error, GRPC_ERROR_STR_OS_ERROR,
-                            grpc_slice_from_static_string(uv_strerror(status)));
-}
-
-static void uv_socket_destroy(grpc_custom_socket* socket) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  gpr_free(uv_socket->handle);
-  gpr_free(uv_socket);
-}
-
-static void alloc_uv_buf(uv_handle_t* handle, size_t suggested_size,
-                         uv_buf_t* buf) {
-  uv_socket_t* uv_socket =
-      (uv_socket_t*)((grpc_custom_socket*)handle->data)->impl;
-  (void)suggested_size;
-  buf->base = uv_socket->read_buf;
-  buf->len = uv_socket->read_len;
-}
-
-static void uv_read_callback(uv_stream_t* stream, ssize_t nread,
-                             const uv_buf_t* buf) {
-  grpc_error_handle error = GRPC_ERROR_NONE;
-  if (nread == 0) {
-    // Nothing happened. Wait for the next callback
-    return;
-  }
-  // TODO(murgatroid99): figure out what the return value here means
-  uv_read_stop(stream);
-  if (nread == UV_EOF) {
-    error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("EOF");
-  } else if (nread < 0) {
-    error = tcp_error_create("TCP Read failed", nread);
-  }
-  grpc_custom_socket* socket = (grpc_custom_socket*)stream->data;
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  uv_socket->read_cb(socket, (size_t)nread, error);
-}
-
-static void uv_close_callback(uv_handle_t* handle) {
-  grpc_custom_socket* socket = (grpc_custom_socket*)handle->data;
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  if (uv_socket->accept_socket) {
-    uv_socket->accept_cb(socket, uv_socket->accept_socket,
-                         GRPC_ERROR_CREATE_FROM_STATIC_STRING("socket closed"));
-  }
-  uv_socket->close_cb(socket);
-}
-
-static void uv_socket_read(grpc_custom_socket* socket, char* buffer,
-                           size_t length, grpc_custom_read_callback read_cb) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  int status;
-  grpc_error_handle error;
-  uv_socket->read_cb = read_cb;
-  uv_socket->read_buf = buffer;
-  uv_socket->read_len = length;
-  // TODO(murgatroid99): figure out what the return value here means
-  status =
-      uv_read_start((uv_stream_t*)uv_socket->handle, (uv_alloc_cb)alloc_uv_buf,
-                    (uv_read_cb)uv_read_callback);
-  if (status != 0) {
-    error = tcp_error_create("TCP Read failed at start", status);
-    uv_socket->read_cb(socket, 0, error);
-  }
-}
-
-static void uv_write_callback(uv_write_t* req, int status) {
-  grpc_custom_socket* socket = (grpc_custom_socket*)req->data;
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  gpr_free(uv_socket->write_buffers);
-  uv_socket->write_cb(socket, tcp_error_create("TCP Write failed", status));
-}
-
-void uv_socket_write(grpc_custom_socket* socket,
-                     grpc_slice_buffer* write_slices,
-                     grpc_custom_write_callback write_cb) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  uv_socket->write_cb = write_cb;
-  uv_buf_t* uv_buffers;
-  uv_write_t* write_req;
-
-  uv_buffers = (uv_buf_t*)gpr_malloc(sizeof(uv_buf_t) * write_slices->count);
-  for (size_t i = 0; i < write_slices->count; i++) {
-    uv_buffers[i].base = (char*)GRPC_SLICE_START_PTR(write_slices->slices[i]);
-    uv_buffers[i].len = GRPC_SLICE_LENGTH(write_slices->slices[i]);
-  }
-
-  uv_socket->write_buffers = uv_buffers;
-  write_req = &uv_socket->write_req;
-  write_req->data = socket;
-  // TODO(murgatroid99): figure out what the return value here means
-  uv_write(write_req, (uv_stream_t*)uv_socket->handle, uv_buffers,
-           write_slices->count, uv_write_callback);
-}
-
-static void shutdown_callback(uv_shutdown_t* req, int status) {}
-
-static void uv_socket_shutdown(grpc_custom_socket* socket) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  uv_shutdown_t* req = &uv_socket->shutdown_req;
-  uv_shutdown(req, (uv_stream_t*)uv_socket->handle, shutdown_callback);
-}
-
-static void uv_socket_close(grpc_custom_socket* socket,
-                            grpc_custom_close_callback close_cb) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  uv_socket->close_cb = close_cb;
-  uv_close((uv_handle_t*)uv_socket->handle, uv_close_callback);
-}
-
-static grpc_error_handle uv_socket_init_helper(uv_socket_t* uv_socket,
-                                               int domain) {
-  uv_tcp_t* tcp = (uv_tcp_t*)gpr_malloc(sizeof(uv_tcp_t));
-  uv_socket->handle = tcp;
-  int status = uv_tcp_init_ex(uv_default_loop(), tcp, (unsigned int)domain);
-  if (status != 0) {
-    return tcp_error_create("Failed to initialize UV tcp handle", status);
-  }
-#if defined(GPR_LINUX) && defined(SO_REUSEPORT)
-  if (domain == AF_INET || domain == AF_INET6) {
-    int enable = 1;
-    int fd;
-    uv_fileno((uv_handle_t*)tcp, &fd);
-    // TODO Handle error here.
-    setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &enable, sizeof(enable));
-  }
-#endif
-  uv_socket->write_buffers = nullptr;
-  uv_socket->read_len = 0;
-  uv_tcp_nodelay(uv_socket->handle, 1);
-  // Node uses a garbage collector to call destructors, so we don't
-  // want to hold the uv loop open with active gRPC objects.
-  uv_unref((uv_handle_t*)uv_socket->handle);
-  uv_socket->pending_connections = 0;
-  uv_socket->accept_socket = nullptr;
-  uv_socket->accept_error = GRPC_ERROR_NONE;
-  return GRPC_ERROR_NONE;
-}
-
-static grpc_error_handle uv_socket_init(grpc_custom_socket* socket,
-                                        int domain) {
-  uv_socket_t* uv_socket = (uv_socket_t*)gpr_malloc(sizeof(uv_socket_t));
-  grpc_error_handle error = uv_socket_init_helper(uv_socket, domain);
-  if (error != GRPC_ERROR_NONE) {
-    return error;
-  }
-  uv_socket->handle->data = socket;
-  socket->impl = uv_socket;
-  return GRPC_ERROR_NONE;
-}
-
-static grpc_error_handle uv_socket_getpeername(grpc_custom_socket* socket,
-                                               const grpc_sockaddr* addr,
-                                               int* addr_len) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  int err = uv_tcp_getpeername(uv_socket->handle,
-                               (struct sockaddr*)IGNORE_CONST(addr), addr_len);
-  return tcp_error_create("getpeername failed", err);
-}
-
-static grpc_error_handle uv_socket_getsockname(grpc_custom_socket* socket,
-                                               const grpc_sockaddr* addr,
-                                               int* addr_len) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  int err = uv_tcp_getsockname(uv_socket->handle,
-                               (struct sockaddr*)IGNORE_CONST(addr), addr_len);
-  return tcp_error_create("getsockname failed", err);
-}
-
-static void accept_new_connection(grpc_custom_socket* socket) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  if (uv_socket->pending_connections == 0 || !uv_socket->accept_socket) {
-    return;
-  }
-  grpc_custom_socket* new_socket = uv_socket->accept_socket;
-  grpc_error_handle error = uv_socket->accept_error;
-  uv_socket->accept_socket = nullptr;
-  uv_socket->accept_error = GRPC_ERROR_NONE;
-  uv_socket->pending_connections -= 1;
-  if (uv_socket->accept_error != GRPC_ERROR_NONE) {
-    uv_stream_t phony_handle;
-    uv_accept((uv_stream_t*)uv_socket->handle, &phony_handle);
-    uv_socket->accept_cb(socket, new_socket, error);
-  } else {
-    uv_socket_t* uv_new_socket = (uv_socket_t*)gpr_malloc(sizeof(uv_socket_t));
-    uv_socket_init_helper(uv_new_socket, AF_UNSPEC);
-    // UV documentation says this is guaranteed to succeed
-    GPR_ASSERT(uv_accept((uv_stream_t*)uv_socket->handle,
-                         (uv_stream_t*)uv_new_socket->handle) == 0);
-    new_socket->impl = uv_new_socket;
-    uv_new_socket->handle->data = new_socket;
-    uv_socket->accept_cb(socket, new_socket, error);
-  }
-}
-
-static void uv_on_connect(uv_stream_t* server, int status) {
-  grpc_custom_socket* socket = (grpc_custom_socket*)server->data;
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  if (status < 0) {
-    switch (status) {
-      case UV_EINTR:
-      case UV_EAGAIN:
-        return;
-      default:
-        uv_socket->accept_error = tcp_error_create("accept failed", status);
-    }
-  }
-  uv_socket->pending_connections += 1;
-  accept_new_connection(socket);
-}
-
-void uv_socket_accept(grpc_custom_socket* socket,
-                      grpc_custom_socket* new_socket,
-                      grpc_custom_accept_callback accept_cb) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  uv_socket->accept_cb = accept_cb;
-  GPR_ASSERT(uv_socket->accept_socket == nullptr);
-  uv_socket->accept_socket = new_socket;
-  accept_new_connection(socket);
-}
-
-static grpc_error_handle uv_socket_bind(grpc_custom_socket* socket,
-                                        const grpc_sockaddr* addr, size_t len,
-                                        int flags) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  int status =
-      uv_tcp_bind((uv_tcp_t*)uv_socket->handle, (struct sockaddr*)addr, 0);
-  return tcp_error_create("Failed to bind to port", status);
-}
-
-static grpc_error_handle uv_socket_listen(grpc_custom_socket* socket) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  int status =
-      uv_listen((uv_stream_t*)uv_socket->handle, SOMAXCONN, uv_on_connect);
-  return tcp_error_create("Failed to listen to port", status);
-}
-
-static void uv_tc_on_connect(uv_connect_t* req, int status) {
-  grpc_custom_socket* socket = (grpc_custom_socket*)req->data;
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  grpc_error_handle error;
-  if (status == UV_ECANCELED) {
-    // This should only happen if the handle is already closed
-    error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Timeout occurred");
-  } else {
-    error = tcp_error_create("Failed to connect to remote host", status);
-  }
-  uv_socket->connect_cb(socket, error);
-}
-
-static void uv_socket_connect(grpc_custom_socket* socket,
-                              const grpc_sockaddr* addr, size_t len,
-                              grpc_custom_connect_callback connect_cb) {
-  uv_socket_t* uv_socket = (uv_socket_t*)socket->impl;
-  uv_socket->connect_cb = connect_cb;
-  uv_socket->connect_req.data = socket;
-  int status = uv_tcp_connect(&uv_socket->connect_req, uv_socket->handle,
-                              (struct sockaddr*)addr, uv_tc_on_connect);
-  if (status != 0) {
-    // The callback will not be called
-    uv_socket->connect_cb(socket, tcp_error_create("connect failed", status));
-  }
-}
-
-static grpc_resolved_addresses* handle_addrinfo_result(
-    struct addrinfo* result) {
-  struct addrinfo* resp;
-  size_t i;
-  grpc_resolved_addresses* addresses =
-      (grpc_resolved_addresses*)gpr_malloc(sizeof(grpc_resolved_addresses));
-  addresses->naddrs = 0;
-  for (resp = result; resp != nullptr; resp = resp->ai_next) {
-    addresses->naddrs++;
-  }
-  addresses->addrs = (grpc_resolved_address*)gpr_malloc(
-      sizeof(grpc_resolved_address) * addresses->naddrs);
-  for (resp = result, i = 0; resp != nullptr; resp = resp->ai_next, i++) {
-    memcpy(&addresses->addrs[i].addr, resp->ai_addr, resp->ai_addrlen);
-    addresses->addrs[i].len = resp->ai_addrlen;
-  }
-  // addrinfo objects are allocated by libuv (e.g. in uv_getaddrinfo)
-  // and not by gpr_malloc
-  uv_freeaddrinfo(result);
-  return addresses;
-}
-
-static void uv_resolve_callback(uv_getaddrinfo_t* req, int status,
-                                struct addrinfo* res) {
-  grpc_custom_resolver* r = (grpc_custom_resolver*)req->data;
-  gpr_free(req);
-  grpc_resolved_addresses* result = nullptr;
-  if (status == 0) {
-    result = handle_addrinfo_result(res);
-  }
-  grpc_custom_resolve_callback(r, result,
-                               tcp_error_create("getaddrinfo failed", status));
-}
-
-static grpc_error_handle uv_resolve(const char* host, const char* port,
-                                    grpc_resolved_addresses** result) {
-  int status;
-  uv_getaddrinfo_t req;
-  struct addrinfo hints;
-  memset(&hints, 0, sizeof(struct addrinfo));
-  hints.ai_family = AF_UNSPEC;     /* ipv4 or ipv6 */
-  hints.ai_socktype = SOCK_STREAM; /* stream socket */
-  hints.ai_flags = AI_PASSIVE;     /* for wildcard IP address */
-  status = uv_getaddrinfo(uv_default_loop(), &req, NULL, host, port, &hints);
-  if (status != 0) {
-    *result = nullptr;
-  } else {
-    *result = handle_addrinfo_result(req.addrinfo);
-  }
-  return tcp_error_create("getaddrinfo failed", status);
-}
-
-static void uv_resolve_async(grpc_custom_resolver* r, const char* host,
-                             const char* port) {
-  int status;
-  uv_getaddrinfo_t* req =
-      (uv_getaddrinfo_t*)gpr_malloc(sizeof(uv_getaddrinfo_t));
-  req->data = r;
-  struct addrinfo hints;
-  memset(&hints, 0, sizeof(struct addrinfo));
-  hints.ai_family = GRPC_AF_UNSPEC;     /* ipv4 or ipv6 */
-  hints.ai_socktype = GRPC_SOCK_STREAM; /* stream socket */
-  hints.ai_flags = GRPC_AI_PASSIVE;     /* for wildcard IP address */
-  status = uv_getaddrinfo(uv_default_loop(), req, uv_resolve_callback, host,
-                          port, &hints);
-  if (status != 0) {
-    gpr_free(req);
-    grpc_error_handle error = tcp_error_create("getaddrinfo failed", status);
-    grpc_custom_resolve_callback(r, NULL, error);
-  }
-}
-
-grpc_custom_resolver_vtable uv_resolver_vtable = {uv_resolve, uv_resolve_async};
-
-grpc_socket_vtable grpc_uv_socket_vtable = {
-    uv_socket_init,     uv_socket_connect,     uv_socket_destroy,
-    uv_socket_shutdown, uv_socket_close,       uv_socket_write,
-    uv_socket_read,     uv_socket_getpeername, uv_socket_getsockname,
-    uv_socket_bind,     uv_socket_listen,      uv_socket_accept};
-
-#endif