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DirectoryStatus: cache last used

Changeset 7aaa1ee7ff7c…

Parent 7eb6164ccfef…

by Adrian Buehlmann

Changes to 3 files · Browse files at 7aaa1ee7ff7c Showing diff from parent 7eb6164ccfef Diff from another changeset...

Change 1 of 1 Show Entire File tortoise/​shellext/​DirectoryStatus.cpp Stacked
 
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@@ -95,3 +95,35 @@
    return 1;  } + + +struct CacheEntry +{ + std::string hgroot_; + DirectoryStatus ds_; + unsigned tickcount_; + + CacheEntry(): tickcount_(0) {}; +}; + + +DirectoryStatus* DirectoryStatus::get(const std::string& hgroot) +{ + static CacheEntry ce; + + unsigned tc = GetTickCount(); + + if (ce.hgroot_ == hgroot && (tc - ce.tickcount_) < 2000) + return &ce.ds_; + + ce.hgroot_.clear(); + + if (ce.ds_.read(hgroot) == 0) + return 0; + + ce.hgroot_ = hgroot; + ce.tickcount_ = GetTickCount(); + return &ce.ds_; +} + +
Change 1 of 1 Show Entire File tortoise/​shellext/​DirectoryStatus.h Stacked
 
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@@ -32,6 +32,9 @@
  V v_;    public: + static DirectoryStatus* get(const std::string& hgroot); + char status(const std::string& relpath) const; + +private:   int read(const std::string& hgroot); - char status(const std::string& relpath) const;  };
Change 1 of 1 Show Entire File tortoise/​shellext/​QueryDirstate.cpp Stacked
 
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@@ -56,8 +56,8 @@
    if (PathIsDirectory(path.c_str()))   { - std::auto_ptr<DirectoryStatus> pds(new DirectoryStatus()); - if (!pds->read(hgroot)) + DirectoryStatus* pds = DirectoryStatus::get(hgroot); + if (!pds)   return 0;     outStatus = pds->status(relpath);