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mojo/public/c/lib/bindings/array.c

Index: mojo/public/c/lib/bindings/array.c
diff --git a/mojo/public/c/lib/bindings/array.c b/mojo/public/c/lib/bindings/array.c
deleted file mode 100644
index 84b808c17a530f5b89c75120552c85eea4f47b14..0000000000000000000000000000000000000000
--- a/mojo/public/c/lib/bindings/array.c
+++ /dev/null
@@ -1,253 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <mojo/bindings/array.h>
-
-#include <assert.h>
-#include <mojo/bindings/buffer.h>
-#include <mojo/bindings/interface.h>
-#include <mojo/bindings/internal/type_descriptor.h>
-#include <mojo/bindings/internal/util.h>
-#include <mojo/bindings/union.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-
-struct MojomArrayHeader* MojomArray_New(struct MojomBuffer* buf,
-                                        uint32_t num_elements,
-                                        uint32_t element_byte_size) {
-  assert(buf);
-
-  uint64_t num_bytes = sizeof(struct MojomArrayHeader) +
-                       (uint64_t)num_elements * element_byte_size;
-  if (num_bytes > UINT32_MAX)
-    return NULL;
-
-  struct MojomArrayHeader* arr =
-      (struct MojomArrayHeader*)MojomBuffer_Allocate(buf, (uint32_t)num_bytes);
-  if (arr == NULL)
-    return NULL;
-
-  assert((uintptr_t)arr + MOJOM_INTERNAL_ROUND_TO_8(num_bytes) ==
-         (uintptr_t)buf->buf + buf->num_bytes_used);
-
-  arr->num_elements = num_elements;
-  arr->num_bytes = MOJOM_INTERNAL_ROUND_TO_8((uint32_t)num_bytes);
-
-  return arr;
-}
-
-// Gets the |index|th element (whose type is described by |type|) of |array|.
-// Only supports non-POD types.
-static void* array_index_by_type(const struct MojomArrayHeader* array,
-                                 enum MojomTypeDescriptorType type,
-                                 size_t index) {
-  switch (type) {
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_STRUCT_PTR:
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_MAP_PTR:
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_ARRAY_PTR:
-      return MOJOM_ARRAY_INDEX(array, union MojomPointer, index);
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_UNION:
-      return MOJOM_ARRAY_INDEX(array, struct MojomUnionLayout, index);
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_HANDLE:
-      return MOJOM_ARRAY_INDEX(array, MojoHandle, index);
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_INTERFACE:
-      return MOJOM_ARRAY_INDEX(array, struct MojomInterfaceData, index);
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_UNION_PTR:
-    case MOJOM_TYPE_DESCRIPTOR_TYPE_POD:
-      // This is a type that isn't supported in an array.
-      assert(0);
-      break;
-  }
-  return NULL;
-}
-
-size_t MojomArray_ComputeSerializedSize(
-    const struct MojomTypeDescriptorArray* in_type_desc,
-    const struct MojomArrayHeader* in_array) {
-  assert(in_array);
-  assert(in_type_desc);
-
-  size_t size = in_array->num_bytes;
-  if (!MojomType_IsPointer(in_type_desc->elem_type) &&
-      in_type_desc->elem_type != MOJOM_TYPE_DESCRIPTOR_TYPE_UNION)
-    return size;
-
-  for (uint32_t i = 0; i < in_array->num_elements; i++) {
-    size += MojomType_DispatchComputeSerializedSize(
-        in_type_desc->elem_type,
-        in_type_desc->elem_descriptor,
-        in_type_desc->nullable,
-        array_index_by_type(in_array, in_type_desc->elem_type, i));
-  }
-
-  return size;
-}
-
-void MojomArray_EncodePointersAndHandles(
-    const struct MojomTypeDescriptorArray* in_type_desc,
-    struct MojomArrayHeader* inout_array,
-    uint32_t in_array_size,
-    struct MojomHandleBuffer* inout_handles_buffer) {
-  assert(in_type_desc);
-  assert(inout_array);
-  assert(in_array_size >= sizeof(struct MojomArrayHeader));
-  assert(in_array_size >= inout_array->num_bytes);
-
-  // Nothing to encode for POD types.
-  if (in_type_desc->elem_type == MOJOM_TYPE_DESCRIPTOR_TYPE_POD)
-    return;
-
-  for (size_t i = 0; i < inout_array->num_elements; i++) {
-    char* elem_data =
-        array_index_by_type(inout_array, in_type_desc->elem_type, i);
-    assert(elem_data < (char*)inout_array + in_array_size);
-
-    MojomType_DispatchEncodePointersAndHandles(
-        in_type_desc->elem_type,
-        in_type_desc->elem_descriptor,
-        in_type_desc->nullable,
-        elem_data,
-        in_array_size - (uint32_t)(elem_data - (char*)inout_array),
-        inout_handles_buffer);
-  }
-}
-
-void MojomArray_DecodePointersAndHandles(
-    const struct MojomTypeDescriptorArray* in_type_desc,
-    struct MojomArrayHeader* inout_array,
-    uint32_t in_array_size,
-    MojoHandle* inout_handles,
-    uint32_t in_num_handles) {
-  assert(in_type_desc);
-  assert(inout_array);
-  assert(inout_handles != NULL || in_num_handles == 0);
-
-  // Nothing to encode for POD types.
-  if (in_type_desc->elem_type == MOJOM_TYPE_DESCRIPTOR_TYPE_POD)
-    return;
-
-  for (size_t i = 0; i < inout_array->num_elements; i++) {
-    char* elem_data =
-        array_index_by_type(inout_array, in_type_desc->elem_type, i);
-    assert(elem_data < (char*)inout_array + in_array_size);
-
-    MojomType_DispatchDecodePointersAndHandles(
-        in_type_desc->elem_type,
-        in_type_desc->elem_descriptor,
-        in_type_desc->nullable,
-        elem_data,
-        in_array_size - (uint32_t)(elem_data - (char*)inout_array),
-        inout_handles,
-        in_num_handles);
-  }
-}
-
-// Rounds up to nearest byte.
-static uint64_t bits_to_bytes(uint64_t bits) {
-  return (bits + 7) / 8;
-}
-
-static MojomValidationResult validate_array_header(
-    const struct MojomTypeDescriptorArray* in_type_desc,
-    const struct MojomArrayHeader* in_array,
-    uint32_t in_buf_size) {
-  if (in_buf_size < sizeof(struct MojomArrayHeader))
-    return MOJOM_VALIDATION_ILLEGAL_MEMORY_RANGE;
-
-  if (in_array->num_bytes < sizeof(struct MojomArrayHeader))
-    return MOJOM_VALIDATION_UNEXPECTED_ARRAY_HEADER;
-
-  if (in_array->num_bytes > in_buf_size)
-    return MOJOM_VALIDATION_ILLEGAL_MEMORY_RANGE;
-
-  if (in_type_desc->num_elements != 0 &&
-      in_array->num_elements != in_type_desc->num_elements)
-    return MOJOM_VALIDATION_UNEXPECTED_ARRAY_HEADER;
-
-  // Array size is less than what we need to fit the elements.
-  if (in_array->num_bytes <
-      sizeof(struct MojomArrayHeader) +
-          bits_to_bytes((uint64_t)in_type_desc->elem_num_bits *
-                        (uint64_t)in_array->num_elements)) {
-    return MOJOM_VALIDATION_UNEXPECTED_ARRAY_HEADER;
-  }
-
-  return MOJOM_VALIDATION_ERROR_NONE;
-}
-
-MojomValidationResult MojomArray_Validate(
-    const struct MojomTypeDescriptorArray* in_type_desc,
-    const struct MojomArrayHeader* in_array,
-    uint32_t in_array_size,
-    uint32_t in_num_handles,
-    struct MojomValidationContext* inout_context) {
-  assert(in_type_desc);
-  assert(in_array);
-
-  MojomValidationResult result =
-      validate_array_header(in_type_desc, in_array, in_array_size);
-  if (result != MOJOM_VALIDATION_ERROR_NONE)
-    return result;
-
-  // From here on out, all pointers need to point past the end of this struct.
-  inout_context->next_pointer = (char*)in_array + in_array->num_bytes;
-
-  // Nothing to validate for POD types.
-  if (in_type_desc->elem_type == MOJOM_TYPE_DESCRIPTOR_TYPE_POD)
-    return MOJOM_VALIDATION_ERROR_NONE;
-
-  for (size_t i = 0; i < in_array->num_elements; i++) {
-    char* elem_data =
-        array_index_by_type(in_array, in_type_desc->elem_type, i);
-
-    MojomValidationResult result = MojomType_DispatchValidate(
-        in_type_desc->elem_type,
-        in_type_desc->elem_descriptor,
-        in_type_desc->nullable,
-        elem_data,
-        in_array_size - (uint32_t)(elem_data - (char*)in_array),
-        in_num_handles,
-        inout_context);
-    if (result != MOJOM_VALIDATION_ERROR_NONE)
-      return result;
-  }
-
-  return MOJOM_VALIDATION_ERROR_NONE;
-}
-
-bool MojomArray_DeepCopy(
-    struct MojomBuffer* buffer,
-    const struct MojomTypeDescriptorArray* in_type_desc,
-    const struct MojomArrayHeader* in_array,
-    struct MojomArrayHeader** out_array) {
-  assert(in_type_desc);
-  assert(in_array);
-  assert(out_array);
-
-  *out_array = MojomBuffer_Allocate(buffer, in_array->num_bytes);
-  if (*out_array == NULL)
-    return false;
-
-  memcpy(*out_array, in_array, in_array->num_bytes);
-
-  // Nothing else to copy for POD types.
-  if (in_type_desc->elem_type == MOJOM_TYPE_DESCRIPTOR_TYPE_POD)
-    return true;
-
-  for (size_t i = 0; i < in_array->num_elements; i++) {
-    void* in_elem_data =
-        array_index_by_type(in_array, in_type_desc->elem_type, i);
-    void* out_elem_data =
-        array_index_by_type(*out_array, in_type_desc->elem_type, i);
-
-    if (!MojomType_DispatchDeepCopy(buffer, in_type_desc->elem_type,
-                               in_type_desc->elem_descriptor, in_elem_data,
-                               out_elem_data)) {
-      return false;
-    }
-  }
-
-  return true;
-}