channel.h File Reference

#include "flutter/shell/platform/fuchsia/dart_pkg/zircon_ffi/basic_types.h"
#include "flutter/shell/platform/fuchsia/dart_pkg/zircon_ffi/handle.h"
#include "flutter/shell/platform/fuchsia/dart_pkg/zircon_ffi/macros.h"
#include <stdint.h>

Go to the source code of this file.

Functions
ZIRCON_FFI_EXPORT zircon_dart_handle_pair_t *	zircon_dart_channel_create (uint32_t options)
ZIRCON_FFI_EXPORT int32_t	zircon_dart_channel_write (zircon_dart_handle_t *handle, zircon_dart_byte_array_t *bytes, zircon_dart_handle_list_t *handles)

Function Documentation

zircon_dart_channel_create()

ZIRCON_FFI_EXPORT zircon_dart_handle_pair_t * zircon_dart_channel_create

(

uint32_t

options

)

Definition at line 22 of file channel.cc.

                                                                        {
  zx_handle_t out0 = 0, out1 = 0;
  zx_status_t status = zx_channel_create(options, &out0, &out1);
  if (status != ZX_OK) {
    return nullptr;
  } else {
    zircon_dart_handle_pair_t* result = static_cast<zircon_dart_handle_pair_t*>(
        malloc(sizeof(zircon_dart_handle_pair_t)));
    result->left = MakeHandle(out0);
    result->right = MakeHandle(out1);
    return result;
  }
}

References zircon_dart_handle_pair_t::left, MakeHandle(), and zircon_dart_handle_pair_t::right.

zircon_dart_channel_write()

ZIRCON_FFI_EXPORT int32_t zircon_dart_channel_write	(	zircon_dart_handle_t *	handle,
		zircon_dart_byte_array_t *	bytes,
		zircon_dart_handle_list_t *	handles
	)

Definition at line 36 of file channel.cc.

                                                                      {
  if (!handle || (handle->handle == ZX_HANDLE_INVALID)) {
    return ZX_ERR_BAD_HANDLE;
  }
 
  std::vector<zx_handle_t> zx_handles;
  std::vector<zircon_dart_handle_t*> handle_data =
      *reinterpret_cast<std::vector<zircon_dart_handle_t*>*>(handles->data);
  for (auto handle_ptr : handle_data) {
    zx_handles.push_back(handle_ptr->handle);
  }
 
  zx_status_t status =
      zx_channel_write(handle->handle, 0, bytes->data, bytes->length,
                       zx_handles.data(), zx_handles.size());
 
  // Handles are always consumed.
  for (auto handle_ptr : handle_data) {
    handle_ptr->handle = ZX_HANDLE_INVALID;
  }
 
  return status;
}

References zircon_dart_byte_array_t::data, zircon_dart_handle_list_t::data, zircon_dart_handle_t::handle, and zircon_dart_byte_array_t::length.