61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
#pragma once
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#include <deque>
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#include "Async.h"
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#include "Database.h"
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#include "Compiler/Module.h"
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#include "Compiler/Preamble.h"
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#include "llvm/ADT/StringMap.h"
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namespace clice {
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struct CacheOption {
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/// The directory to store the cache files.
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std::string dir;
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};
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/// This class is responsible for PCH and PCM building.
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class CacheController {
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public:
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CacheController(CacheOption& option, CompilationDatabase& database);
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/// Generate `cache.json` to store the cache information.
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void loadFromDisk();
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/// Load the cache information from `cache.json`.
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void saveToDisk();
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/// Complete the PCH or PCM information required for the compilation arguments.
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/// If no suitable PCH or PCM is available, a build will be triggered.
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async::Task<> prepare(CompilationParams& params);
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async::Task<> updatePCH();
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private:
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const CacheOption& option;
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CompilationDatabase& database;
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struct CachedPCHInfo : PCHInfo {
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/// The hash of the preamble, for fast comparison.
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std::uint64_t hash;
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/// The reference count of this PCH. When server exit, all PCH with zero
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/// reference count will be removed.
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std::uint32_t reference;
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};
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/// All PCHs.
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std::deque<CachedPCHInfo> pchs;
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/// A map between source file and its PCH.
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llvm::StringMap<CachedPCHInfo*> pchMap;
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/// [module name] -> [PCMInfo]
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llvm::StringMap<PCMInfo> pcms;
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};
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} // namespace clice
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