Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
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74 lines
2.9 KiB
74 lines
2.9 KiB
1 year ago
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/*
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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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#ifndef UPB_MINI_DESCRIPTOR_INTERNAL_DECODER_H_
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#define UPB_MINI_DESCRIPTOR_INTERNAL_DECODER_H_
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#include "upb/base/status.h"
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#include "upb/mini_descriptor/internal/base92.h"
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// Must be last.
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#include "upb/port/def.inc"
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// upb_MdDecoder: used internally for decoding MiniDescriptors for messages,
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// extensions, and enums.
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typedef struct {
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const char* end;
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upb_Status* status;
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jmp_buf err;
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} upb_MdDecoder;
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UPB_PRINTF(2, 3)
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UPB_NORETURN UPB_INLINE void upb_MdDecoder_ErrorJmp(upb_MdDecoder* d,
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const char* fmt, ...) {
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if (d->status) {
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va_list argp;
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upb_Status_SetErrorMessage(d->status, "Error building mini table: ");
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va_start(argp, fmt);
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upb_Status_VAppendErrorFormat(d->status, fmt, argp);
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va_end(argp);
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}
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UPB_LONGJMP(d->err, 1);
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}
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UPB_INLINE void upb_MdDecoder_CheckOutOfMemory(upb_MdDecoder* d,
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const void* ptr) {
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if (!ptr) upb_MdDecoder_ErrorJmp(d, "Out of memory");
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}
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UPB_INLINE const char* upb_MdDecoder_DecodeBase92Varint(
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upb_MdDecoder* d, const char* ptr, char first_ch, uint8_t min, uint8_t max,
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uint32_t* out_val) {
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ptr = _upb_Base92_DecodeVarint(ptr, d->end, first_ch, min, max, out_val);
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if (!ptr) upb_MdDecoder_ErrorJmp(d, "Overlong varint");
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return ptr;
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}
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#include "upb/port/undef.inc"
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#endif // UPB_MINI_DESCRIPTOR_INTERNAL_DECODER_H_
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