31 lines
633 B
C++
31 lines
633 B
C++
#ifndef DOCID2FLAGSANDSITEMAP_H_
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#define DOCID2FLAGSANDSITEMAP_H_
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#include "MemoryMappedFile.h"
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#include <inttypes.h>
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#include <atomic>
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class Docid2FlagsAndSiteMap {
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MemoryMappedFile mmf[2];
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std::atomic<unsigned> active_index;
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long timestamp;
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public:
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Docid2FlagsAndSiteMap() : active_index(0), timestamp(-1) {}
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~Docid2FlagsAndSiteMap() {}
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bool load();
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void reload_if_needed();
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void unload();
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bool empty() const { return mmf[active_index].size()==0; }
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bool lookupSiteHash(uint64_t docid, uint32_t *sitehash32);
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bool lookupFlags(uint64_t docid, unsigned *flags);
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};
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extern Docid2FlagsAndSiteMap g_d2fasm;
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#endif
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