Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.4 KiB
50 lines
1.4 KiB
// Protocol Buffers - Google's data interchange format |
|
// Copyright 2023 Google LLC. All rights reserved. |
|
// |
|
// Use of this source code is governed by a BSD-style |
|
// license that can be found in the LICENSE file or at |
|
// https://developers.google.com/open-source/licenses/bsd |
|
|
|
#include "upb/wire/reader.h" |
|
|
|
#include <stddef.h> |
|
#include <stdint.h> |
|
|
|
#include "upb/wire/eps_copy_input_stream.h" |
|
#include "upb/wire/types.h" |
|
|
|
// Must be last. |
|
#include "upb/port/def.inc" |
|
|
|
UPB_NOINLINE UPB_PRIVATE(_upb_WireReader_LongVarint) |
|
UPB_PRIVATE(_upb_WireReader_ReadLongVarint)(const char* ptr, uint64_t val) { |
|
UPB_PRIVATE(_upb_WireReader_LongVarint) ret = {NULL, 0}; |
|
uint64_t byte; |
|
int i; |
|
for (i = 1; i < 10; i++) { |
|
byte = (uint8_t)ptr[i]; |
|
val += (byte - 1) << (i * 7); |
|
if (!(byte & 0x80)) { |
|
ret.ptr = ptr + i + 1; |
|
ret.val = val; |
|
return ret; |
|
} |
|
} |
|
return ret; |
|
} |
|
|
|
const char* UPB_PRIVATE(_upb_WireReader_SkipGroup)( |
|
const char* ptr, uint32_t tag, int depth_limit, |
|
upb_EpsCopyInputStream* stream) { |
|
if (--depth_limit == 0) return NULL; |
|
uint32_t end_group_tag = (tag & ~7ULL) | kUpb_WireType_EndGroup; |
|
while (!upb_EpsCopyInputStream_IsDone(stream, &ptr)) { |
|
uint32_t tag; |
|
ptr = upb_WireReader_ReadTag(ptr, &tag); |
|
if (!ptr) return NULL; |
|
if (tag == end_group_tag) return ptr; |
|
ptr = _upb_WireReader_SkipValue(ptr, tag, depth_limit, stream); |
|
if (!ptr) return NULL; |
|
} |
|
return ptr; |
|
}
|
|
|