diff options
Diffstat (limited to 'contrib/llvm/tools/lldb/source/Host/common/FileSystem.cpp')
-rw-r--r-- | contrib/llvm/tools/lldb/source/Host/common/FileSystem.cpp | 141 |
1 files changed, 70 insertions, 71 deletions
diff --git a/contrib/llvm/tools/lldb/source/Host/common/FileSystem.cpp b/contrib/llvm/tools/lldb/source/Host/common/FileSystem.cpp index 5a5dbc7..88f29b4 100644 --- a/contrib/llvm/tools/lldb/source/Host/common/FileSystem.cpp +++ b/contrib/llvm/tools/lldb/source/Host/common/FileSystem.cpp @@ -9,6 +9,7 @@ #include "lldb/Host/FileSystem.h" +#include "llvm/Support/FileSystem.h" #include "llvm/Support/MD5.h" #include <algorithm> @@ -20,84 +21,82 @@ using namespace lldb_private; namespace { -bool -CalcMD5(const FileSpec &file_spec, uint64_t offset, uint64_t length, llvm::MD5::MD5Result &md5_result) -{ - llvm::MD5 md5_hash; - std::ifstream file(file_spec.GetPath(), std::ios::binary); - if (!file.is_open()) - return false; - - if (offset > 0) - file.seekg(offset, file.beg); - - std::vector<char> read_buf(4096); - uint64_t total_read_bytes = 0; - while (!file.eof()) - { - const uint64_t to_read = (length > 0) ? - std::min(static_cast<uint64_t>(read_buf.size()), length - total_read_bytes) : - read_buf.size(); - if (to_read == 0) - break; - - file.read(&read_buf[0], to_read); - const auto read_bytes = file.gcount(); - if (read_bytes == 0) - break; - - md5_hash.update(llvm::StringRef(&read_buf[0], read_bytes)); - total_read_bytes += read_bytes; - } - - md5_hash.final(md5_result); - return true; +bool CalcMD5(const FileSpec &file_spec, uint64_t offset, uint64_t length, + llvm::MD5::MD5Result &md5_result) { + llvm::MD5 md5_hash; + std::ifstream file(file_spec.GetPath(), std::ios::binary); + if (!file.is_open()) + return false; + + if (offset > 0) + file.seekg(offset, file.beg); + + std::vector<char> read_buf(4096); + uint64_t total_read_bytes = 0; + while (!file.eof()) { + const uint64_t to_read = + (length > 0) ? std::min(static_cast<uint64_t>(read_buf.size()), + length - total_read_bytes) + : read_buf.size(); + if (to_read == 0) + break; + + file.read(&read_buf[0], to_read); + const auto read_bytes = file.gcount(); + if (read_bytes == 0) + break; + + md5_hash.update(llvm::StringRef(&read_buf[0], read_bytes)); + total_read_bytes += read_bytes; + } + + md5_hash.final(md5_result); + return true; } -} // namespace +} // namespace -bool -FileSystem::CalculateMD5(const FileSpec &file_spec, uint64_t &low, uint64_t &high) -{ - return CalculateMD5(file_spec, 0, 0, low, high); +bool FileSystem::CalculateMD5(const FileSpec &file_spec, uint64_t &low, + uint64_t &high) { + return CalculateMD5(file_spec, 0, 0, low, high); } -bool -FileSystem::CalculateMD5(const FileSpec &file_spec, - uint64_t offset, - uint64_t length, - uint64_t &low, - uint64_t &high) -{ - llvm::MD5::MD5Result md5_result; - if (!CalcMD5(file_spec, offset, length, md5_result)) - return false; - - const auto uint64_res = reinterpret_cast<const uint64_t*>(md5_result); - high = uint64_res[0]; - low = uint64_res[1]; - - return true; +bool FileSystem::CalculateMD5(const FileSpec &file_spec, uint64_t offset, + uint64_t length, uint64_t &low, uint64_t &high) { + llvm::MD5::MD5Result md5_result; + if (!CalcMD5(file_spec, offset, length, md5_result)) + return false; + + const auto uint64_res = reinterpret_cast<const uint64_t *>(md5_result); + high = uint64_res[0]; + low = uint64_res[1]; + + return true; +} + +bool FileSystem::CalculateMD5AsString(const FileSpec &file_spec, + std::string &digest_str) { + return CalculateMD5AsString(file_spec, 0, 0, digest_str); } -bool -FileSystem::CalculateMD5AsString(const FileSpec &file_spec, std::string& digest_str) -{ - return CalculateMD5AsString(file_spec, 0, 0, digest_str); +bool FileSystem::CalculateMD5AsString(const FileSpec &file_spec, + uint64_t offset, uint64_t length, + std::string &digest_str) { + llvm::MD5::MD5Result md5_result; + if (!CalcMD5(file_spec, offset, length, md5_result)) + return false; + + llvm::SmallString<32> result_str; + llvm::MD5::stringifyResult(md5_result, result_str); + digest_str = result_str.c_str(); + return true; } -bool -FileSystem::CalculateMD5AsString(const FileSpec &file_spec, - uint64_t offset, - uint64_t length, - std::string& digest_str) -{ - llvm::MD5::MD5Result md5_result; - if (!CalcMD5(file_spec, offset, length, md5_result)) - return false; - - llvm::SmallString<32> result_str; - llvm::MD5::stringifyResult(md5_result, result_str); - digest_str = result_str.c_str(); - return true; +llvm::sys::TimePoint<> +FileSystem::GetModificationTime(const FileSpec &file_spec) { + llvm::sys::fs::file_status status; + std::error_code ec = llvm::sys::fs::status(file_spec.GetPath(), status); + if (ec) + return llvm::sys::TimePoint<>(); + return status.getLastModificationTime(); } |