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author | Jay Freeman (saurik) <saurik@saurik.com> | 2015-10-10 14:04:44 -0700 |
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committer | Jay Freeman (saurik) <saurik@saurik.com> | 2015-10-10 14:04:44 -0700 |
commit | 886cb3f1cf485d307519e2024ef141314d42e713 (patch) | |
tree | f43aaf8afc736976148cb47c691498bde868f132 /ldid.cpp | |
parent | 2443500c8f002df2641e55c26a6a7882906a42da (diff) | |
download | ldid-886cb3f1cf485d307519e2024ef141314d42e713.tar.gz ldid-886cb3f1cf485d307519e2024ef141314d42e713.tar.zst ldid-886cb3f1cf485d307519e2024ef141314d42e713.zip |
UnionFolder (code for Impactor) should be in ldid.
Diffstat (limited to 'ldid.cpp')
-rw-r--r-- | ldid.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -1661,6 +1661,41 @@ void SubFolder::Find(const std::string &path, const Functor<void (const std::str return parent_.Find(path_ + path, code); } +UnionFolder::UnionFolder(Folder &parent) : + parent_(parent) +{ +} + +void UnionFolder::Save(const std::string &path, const Functor<void (std::streambuf &)> &code) { + return parent_.Save(path, code); +} + +bool UnionFolder::Open(const std::string &path, const Functor<void (std::streambuf &)> &code) { + auto file(files_.find(path)); + if (file == files_.end()) + return parent_.Open(path, code); + + auto &data(file->second); + data.pubseekpos(0, std::ios::in); + code(data); + return true; +} + +void UnionFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code) { + parent_.Find(path, fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &save) { + if (files_.find(name) == files_.end()) + code(name, save); + })); + + for (auto &file : files_) + code(file.first, fun([&](const Functor<void (std::streambuf &, std::streambuf &)> &code) { + parent_.Save(file.first, fun([&](std::streambuf &save) { + file.second.pubseekpos(0, std::ios::in); + code(file.second, save); + })); + })); +} + static size_t copy(std::streambuf &source, std::streambuf &target) { size_t total(0); for (;;) { |