Use 'mx_channel' instead of deprecated 'mx_msgpipe' naming

runtime/bin/eventhandler_fuchsia.cc

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #if !defined(DART_IO_DISABLED)
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_FUCHSIA)
 
 #include "bin/eventhandler.h"
@@ skipping 126 matching lines @@
   if (signals_states_ == NULL) {
     FATAL("Failed to grow signals_states array");
   }
   capacity_ = new_capacity;
   LOG_INFO("GrowArraysIfNeeded(%ld), capacity = %ld\n",
            desired_size, capacity_);
 }
 
 
 EventHandlerImplementation::EventHandlerImplementation() {
-  mx_status_t status = mx_msgpipe_create(interrupt_handles_, 0);
+  mx_status_t status = mx_channel_create(0, &interrupt_handles_[0],
+                                         &interrupt_handles_[1]);
   if (status != NO_ERROR) {
-    FATAL1("mx_msgpipe_create failed: %s\n", mx_status_get_string(status));
+    FATAL1("mx_channel_create failed: %s\n", mx_status_get_string(status));
   }
   shutdown_ = false;
   info_.AddHandle(interrupt_handles_[0],
                   MX_SIGNAL_READABLE | MX_SIGNAL_PEER_CLOSED,
                   NULL);
   LOG_INFO("EventHandlerImplementation initialized\n");
 }
 
 
 EventHandlerImplementation::~EventHandlerImplementation() {
@@ skipping 11 matching lines @@
 
 void EventHandlerImplementation::WakeupHandler(intptr_t id,
                                                Dart_Port dart_port,
                                                int64_t data) {
   InterruptMessage msg;
   msg.id = id;
   msg.dart_port = dart_port;
   msg.data = data;
 
   mx_status_t status =
-    mx_msgpipe_write(interrupt_handles_[1], &msg, sizeof(msg), NULL, 0, 0);
+    mx_channel_write(interrupt_handles_[1], 0, &msg, sizeof(msg), NULL, 0);
   if (status != NO_ERROR) {
-    FATAL1("mx_msgpipe_write failed: %s\n", mx_status_get_string(status));
+    FATAL1("mx_channel_write failed: %s\n", mx_status_get_string(status));
   }
   LOG_INFO("WakeupHandler(%ld, %ld, %lld)\n", id, dart_port, data);
 }
 
 
 void EventHandlerImplementation::HandleInterruptFd() {
   LOG_INFO("HandleInterruptFd entry\n");
   InterruptMessage msg;
   uint32_t bytes = kInterruptMessageSize;
   mx_status_t status;
   while (true) {
-    status = mx_msgpipe_read(
-        interrupt_handles_[0], &msg, &bytes, NULL, NULL, 0);
+    status = mx_channel_read(
+        interrupt_handles_[0], 0, &msg, bytes, &bytes, NULL, 0, NULL);
     if (status != NO_ERROR) {
       break;
     }
     ASSERT(bytes == kInterruptMessageSize);
     if (msg.id == kTimerId) {
       LOG_INFO("HandleInterruptFd read timer update\n");
       timeout_queue_.UpdateTimeout(msg.dart_port, msg.data);
     } else if (msg.id == kShutdownId) {
       LOG_INFO("HandleInterruptFd read shutdown\n");
       shutdown_ = true;
     } else {
       // TODO(zra): Handle commands to add and remove handles from the
       // MagentaWaitManyInfo.
       UNIMPLEMENTED();
     }
   }
   // status == ERR_SHOULD_WAIT when we try to read and there are no messages
   // available, so it is an error if we get here and status != ERR_SHOULD_WAIT.
   if (status != ERR_SHOULD_WAIT) {
-    FATAL1("mx_msgpipe_read failed: %s\n", mx_status_get_string(status));
+    FATAL1("mx_channel_read failed: %s\n", mx_status_get_string(status));
   }
   LOG_INFO("HandleInterruptFd exit\n");
 }
 
 
 void EventHandlerImplementation::HandleEvents() {
   LOG_INFO("HandleEvents entry\n");
   for (intptr_t i = 1; i < info_.size(); i++) {
     if (info_.signals_states()[i].satisfied != MX_SIGNAL_NONE) {
       // Only the control handle has no descriptor info.
@@ skipping 93 matching lines @@
                                           int64_t data) {
   WakeupHandler(id, dart_port, data);
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_FUCHSIA)
 
 #endif  // !defined(DART_IO_DISABLED)