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Merge pull request #22026 from neovim/backport-21793-to-release-0.8

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[Backport release-0.8] fix(rbuffer): handle edge case where write_ptr has wrapped around too early
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zeertzjq
2023-01-28 08:20:46 +08:00
committed by GitHub
parent bb1ba8d62b 9aacf9bf66
commit 2ecbd7f598
1 changed files with 2 additions and 1 deletions
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src/nvim/rbuffer.c
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@ -164,7 +164,8 @@ void rbuffer_consumed_compact(RBuffer *buf, size_t count)
assert(buf->read_ptr <= buf->write_ptr);
rbuffer_consumed(buf, count);
if (buf->read_ptr > buf->start_ptr) {
assert((size_t)(buf->read_ptr - buf->write_ptr) == buf->size);
assert((size_t)(buf->write_ptr - buf->read_ptr) == buf->size
|| buf->write_ptr == buf->start_ptr);
memmove(buf->start_ptr, buf->read_ptr, buf->size);
buf->read_ptr = buf->start_ptr;
buf->write_ptr = buf->read_ptr + buf->size;