Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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92 lines
4.1 KiB
92 lines
4.1 KiB
/* |
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* Copyright (c) 2009-2021, Google LLC |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* * Neither the name of Google LLC nor the |
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* names of its contributors may be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT, |
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "upb/message/accessors.h" |
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#include "upb/collections/array.h" |
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#include "upb/collections/array_internal.h" |
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#include "upb/collections/map.h" |
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#include "upb/message/message.h" |
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#include "upb/mini_table/field.h" |
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#include "upb/wire/common.h" |
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#include "upb/wire/decode.h" |
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#include "upb/wire/encode.h" |
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#include "upb/wire/eps_copy_input_stream.h" |
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#include "upb/wire/reader.h" |
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// Must be last. |
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#include "upb/port/def.inc" |
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upb_MapInsertStatus upb_Message_InsertMapEntry(upb_Map* map, |
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const upb_MiniTable* mini_table, |
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const upb_MiniTableField* field, |
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upb_Message* map_entry_message, |
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upb_Arena* arena) { |
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const upb_MiniTable* map_entry_mini_table = |
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mini_table->subs[field->UPB_PRIVATE(submsg_index)].submsg; |
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UPB_ASSERT(map_entry_mini_table); |
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UPB_ASSERT(map_entry_mini_table->field_count == 2); |
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const upb_MiniTableField* map_entry_key_field = |
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&map_entry_mini_table->fields[0]; |
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const upb_MiniTableField* map_entry_value_field = |
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&map_entry_mini_table->fields[1]; |
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// Map key/value cannot have explicit defaults, |
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// hence assuming a zero default is valid. |
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upb_MessageValue default_val; |
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memset(&default_val, 0, sizeof(upb_MessageValue)); |
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upb_MessageValue map_entry_key; |
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upb_MessageValue map_entry_value; |
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_upb_Message_GetField(map_entry_message, map_entry_key_field, &default_val, |
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&map_entry_key); |
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_upb_Message_GetField(map_entry_message, map_entry_value_field, &default_val, |
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&map_entry_value); |
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return upb_Map_Insert(map, map_entry_key, map_entry_value, arena); |
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} |
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bool upb_Message_IsExactlyEqual(const upb_Message* m1, const upb_Message* m2, |
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const upb_MiniTable* layout) { |
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if (m1 == m2) return true; |
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int opts = kUpb_EncodeOption_SkipUnknown | kUpb_EncodeOption_Deterministic; |
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upb_Arena* a = upb_Arena_New(); |
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// Compare deterministically serialized payloads with no unknown fields. |
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size_t size1, size2; |
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char *data1, *data2; |
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upb_EncodeStatus status1 = upb_Encode(m1, layout, opts, a, &data1, &size1); |
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upb_EncodeStatus status2 = upb_Encode(m2, layout, opts, a, &data2, &size2); |
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if (status1 != kUpb_EncodeStatus_Ok || status2 != kUpb_EncodeStatus_Ok) { |
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// TODO(salo): How should we fail here? (In Ruby we throw an exception.) |
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upb_Arena_Free(a); |
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return false; |
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} |
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const bool ret = (size1 == size2) && (memcmp(data1, data2, size1) == 0); |
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upb_Arena_Free(a); |
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return ret; |
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}
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