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Introduce proper error handling for file streams

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This commit is contained in:
sfan5 2024-05-08 20:37:10 +02:00
parent c38e0d05bf
commit 39fd9b93c3
23 changed files with 235 additions and 149 deletions
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17
src/porting.cpp
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@ -582,7 +582,7 @@ static void createCacheDirTag()
if (fs::PathExists(path))
return;
fs::CreateAllDirs(path_cache);
std::ofstream ofs(path, std::ios::out | std::ios::binary);
auto ofs = open_ofstream(path.c_str(), false);
if (!ofs.good())
return;
ofs << "Signature: 8a477f597d28d172789f06886806bc55\n"
@ -800,6 +800,21 @@ std::string QuoteArgv(const std::string &arg)
ret.push_back('"');
return ret;
}
std::string ConvertError(DWORD error_code)
{
wchar_t buffer[320];
auto r = FormatMessageW(
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr, error_code, 0, buffer, ARRLEN(buffer) - 1, nullptr);
if (!r)
return std::to_string(error_code);
if (!buffer[0]) // should not happen normally
return "?";
return wide_to_utf8(buffer);
}
#endif
int mt_snprintf(char *buf, const size_t buf_size, const char *fmt, ...)