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Claude
6e78110000
checkdisk() is called from the parsing threads and sums the write positions of every reader. The geometry/index/vertex/node positions were already std::atomic, but memfile::off (the string pool and tree sizes) was a plain size_t that the owning thread updates in memfile_write(), which ThreadSanitizer reports as a data race. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EfWkLhwEvKQoNGVPsLGehj
23 lines
516 B
C++
23 lines
516 B
C++
#ifndef MEMFILE_HPP
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#define MEMFILE_HPP
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#include <atomic>
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#include <string>
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#include "errors.hpp"
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struct memfile {
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int fd = 0;
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std::string map;
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unsigned long tree = 0;
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FILE *fp = NULL;
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// Read by checkdisk() from other threads while the owning reader thread appends
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std::atomic<size_t> off{0};
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};
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struct memfile *memfile_open(int fd);
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int memfile_close(struct memfile *file);
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int memfile_write(struct memfile *file, void *s, long long len, bool &in_memory);
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void memfile_full(struct memfile *file);
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#endif
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