src/detail/file_stdio.cpp
84.9% Lines (107/126)
100.0% List of functions (11/11)
Functions (11)
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boost::http::detail::file_stdio::~file_stdio()
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boost::http::detail::file_stdio::file_stdio(boost::http::detail::file_stdio&&)
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boost::http::detail::file_stdio::operator=(boost::http::detail::file_stdio&&)
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boost::http::detail::file_stdio::native_handle(_IO_FILE*)
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boost::http::detail::file_stdio::close(boost::system::error_code&)
:60
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boost::http::detail::file_stdio::open(char const*, boost::http::file_mode, boost::system::error_code&)
:79
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boost::http::detail::file_stdio::size(boost::system::error_code&) const
:224
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boost::http::detail::file_stdio::pos(boost::system::error_code&) const
:266
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boost::http::detail::file_stdio::seek(unsigned long, boost::system::error_code&)
:288
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boost::http::detail::file_stdio::read(void*, unsigned long, boost::system::error_code&)
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boost::http::detail::file_stdio::write(void const*, unsigned long, boost::system::error_code&)
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| Line | TLA | Hits | Source Code |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2022 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/http | ||
| 8 | // | ||
| 9 | |||
| 10 | #include "src/detail/win32_unicode_path.hpp" | ||
| 11 | #include <boost/http/detail/file_stdio.hpp> | ||
| 12 | #include <boost/http/error.hpp> | ||
| 13 | #include <boost/system/errc.hpp> | ||
| 14 | #include <boost/config/workaround.hpp> | ||
| 15 | #include <boost/core/exchange.hpp> | ||
| 16 | #include <limits> | ||
| 17 | |||
| 18 | namespace boost { | ||
| 19 | namespace http { | ||
| 20 | namespace detail { | ||
| 21 | |||
| 22 | 23x | file_stdio:: | |
| 23 | ~file_stdio() | ||
| 24 | { | ||
| 25 | 23x | if(f_) | |
| 26 | 11x | fclose(f_); | |
| 27 | 23x | } | |
| 28 | |||
| 29 | 1x | file_stdio:: | |
| 30 | file_stdio( | ||
| 31 | 1x | file_stdio&& other) noexcept | |
| 32 | 1x | : f_(boost::exchange(other.f_, nullptr)) | |
| 33 | { | ||
| 34 | 1x | } | |
| 35 | |||
| 36 | file_stdio& | ||
| 37 | 3x | file_stdio:: | |
| 38 | operator=( | ||
| 39 | file_stdio&& other) noexcept | ||
| 40 | { | ||
| 41 | 3x | if(&other == this) | |
| 42 | 1x | return *this; | |
| 43 | 2x | if(f_) | |
| 44 | 1x | fclose(f_); | |
| 45 | 2x | f_ = other.f_; | |
| 46 | 2x | other.f_ = nullptr; | |
| 47 | 2x | return *this; | |
| 48 | } | ||
| 49 | |||
| 50 | void | ||
| 51 | 1x | file_stdio:: | |
| 52 | native_handle(std::FILE* f) | ||
| 53 | { | ||
| 54 | 1x | if(f_) | |
| 55 | 1x | fclose(f_); | |
| 56 | 1x | f_ = f; | |
| 57 | 1x | } | |
| 58 | |||
| 59 | void | ||
| 60 | 4x | file_stdio:: | |
| 61 | close( | ||
| 62 | system::error_code& ec) | ||
| 63 | { | ||
| 64 | 4x | if(f_) | |
| 65 | { | ||
| 66 | 4x | int failed = fclose(f_); | |
| 67 | 4x | f_ = nullptr; | |
| 68 | 4x | if(failed) | |
| 69 | { | ||
| 70 | ✗ | ec.assign(errno, | |
| 71 | system::generic_category()); | ||
| 72 | ✗ | return; | |
| 73 | } | ||
| 74 | } | ||
| 75 | 4x | ec = {}; | |
| 76 | } | ||
| 77 | |||
| 78 | void | ||
| 79 | 21x | file_stdio:: | |
| 80 | open(char const* path, file_mode mode, | ||
| 81 | system::error_code& ec) | ||
| 82 | { | ||
| 83 | 21x | if(f_) | |
| 84 | { | ||
| 85 | 1x | fclose(f_); | |
| 86 | 1x | f_ = nullptr; | |
| 87 | } | ||
| 88 | 21x | ec = {}; | |
| 89 | #ifdef _WIN32 | ||
| 90 | boost::winapi::WCHAR_ const* s; | ||
| 91 | detail::win32_unicode_path unicode_path(path, ec); | ||
| 92 | if (ec) | ||
| 93 | return; | ||
| 94 | #else | ||
| 95 | char const* s; | ||
| 96 | #endif | ||
| 97 | 21x | switch(mode) | |
| 98 | { | ||
| 99 | 2x | default: | |
| 100 | case file_mode::read: | ||
| 101 | #ifdef _WIN32 | ||
| 102 | s = L"rb"; | ||
| 103 | #else | ||
| 104 | 2x | s = "rb"; | |
| 105 | #endif | ||
| 106 | 2x | break; | |
| 107 | |||
| 108 | 1x | case file_mode::scan: | |
| 109 | #ifdef _WIN32 | ||
| 110 | s = L"rbS"; | ||
| 111 | #else | ||
| 112 | 1x | s = "rb"; | |
| 113 | #endif | ||
| 114 | 1x | break; | |
| 115 | |||
| 116 | 10x | case file_mode::write: | |
| 117 | #ifdef _WIN32 | ||
| 118 | s = L"wb+"; | ||
| 119 | #else | ||
| 120 | 10x | s = "wb+"; | |
| 121 | #endif | ||
| 122 | 10x | break; | |
| 123 | |||
| 124 | 2x | case file_mode::write_new: | |
| 125 | { | ||
| 126 | #ifdef _WIN32 | ||
| 127 | # if (defined(BOOST_MSVC) && BOOST_MSVC >= 1910) || (defined(_MSVC_STL_VERSION) && _MSVC_STL_VERSION >= 141) | ||
| 128 | s = L"wbx"; | ||
| 129 | # else | ||
| 130 | std::FILE* f0; | ||
| 131 | auto const ev = ::_wfopen_s(&f0, unicode_path.c_str(), L"rb"); | ||
| 132 | if(! ev) | ||
| 133 | { | ||
| 134 | std::fclose(f0); | ||
| 135 | ec = make_error_code( | ||
| 136 | system::errc::file_exists); | ||
| 137 | return; | ||
| 138 | } | ||
| 139 | else if(ev != | ||
| 140 | system::errc::no_such_file_or_directory) | ||
| 141 | { | ||
| 142 | ec.assign(ev, | ||
| 143 | system::generic_category()); | ||
| 144 | return; | ||
| 145 | } | ||
| 146 | s = L"wb"; | ||
| 147 | # endif | ||
| 148 | #else | ||
| 149 | 2x | s = "wbx"; | |
| 150 | #endif | ||
| 151 | 2x | break; | |
| 152 | } | ||
| 153 | |||
| 154 | 2x | case file_mode::write_existing: | |
| 155 | #ifdef _WIN32 | ||
| 156 | s = L"rb+"; | ||
| 157 | #else | ||
| 158 | 2x | s = "rb+"; | |
| 159 | #endif | ||
| 160 | 2x | break; | |
| 161 | |||
| 162 | 2x | case file_mode::append: | |
| 163 | #ifdef _WIN32 | ||
| 164 | s = L"ab"; | ||
| 165 | #else | ||
| 166 | 2x | s = "ab"; | |
| 167 | #endif | ||
| 168 | 2x | break; | |
| 169 | |||
| 170 | 2x | case file_mode::append_existing: | |
| 171 | { | ||
| 172 | #ifdef _WIN32 | ||
| 173 | std::FILE* f0; | ||
| 174 | auto const ev = | ||
| 175 | ::_wfopen_s(&f0, unicode_path.c_str(), L"rb+"); | ||
| 176 | if(ev) | ||
| 177 | { | ||
| 178 | ec.assign(ev, | ||
| 179 | system::generic_category()); | ||
| 180 | return; | ||
| 181 | } | ||
| 182 | #else | ||
| 183 | auto const f0 = | ||
| 184 | 2x | std::fopen(path, "rb+"); | |
| 185 | 2x | if(! f0) | |
| 186 | { | ||
| 187 | 1x | ec.assign(errno, | |
| 188 | system::generic_category()); | ||
| 189 | 1x | return; | |
| 190 | } | ||
| 191 | #endif | ||
| 192 | 1x | std::fclose(f0); | |
| 193 | #ifdef _WIN32 | ||
| 194 | s = L"ab"; | ||
| 195 | #else | ||
| 196 | 1x | s = "ab"; | |
| 197 | #endif | ||
| 198 | 1x | break; | |
| 199 | } | ||
| 200 | } | ||
| 201 | |||
| 202 | #ifdef _WIN32 | ||
| 203 | auto const ev = ::_wfopen_s( | ||
| 204 | &f_, unicode_path.c_str(), s); | ||
| 205 | if(ev) | ||
| 206 | { | ||
| 207 | f_ = nullptr; | ||
| 208 | ec.assign(ev, | ||
| 209 | system::generic_category()); | ||
| 210 | return; | ||
| 211 | } | ||
| 212 | #else | ||
| 213 | 20x | f_ = std::fopen(path, s); | |
| 214 | 20x | if(! f_) | |
| 215 | { | ||
| 216 | 2x | ec.assign(errno, | |
| 217 | system::generic_category()); | ||
| 218 | 2x | return; | |
| 219 | } | ||
| 220 | #endif | ||
| 221 | } | ||
| 222 | |||
| 223 | std::uint64_t | ||
| 224 | 2x | file_stdio:: | |
| 225 | size( | ||
| 226 | system::error_code& ec) const | ||
| 227 | { | ||
| 228 | 2x | if(! f_) | |
| 229 | { | ||
| 230 | 1x | ec = make_error_code( | |
| 231 | system::errc::bad_file_descriptor); | ||
| 232 | 1x | return 0; | |
| 233 | } | ||
| 234 | 1x | long pos = std::ftell(f_); | |
| 235 | 1x | if(pos == -1L) | |
| 236 | { | ||
| 237 | ✗ | ec.assign(errno, | |
| 238 | system::generic_category()); | ||
| 239 | ✗ | return 0; | |
| 240 | } | ||
| 241 | 1x | int result = std::fseek(f_, 0, SEEK_END); | |
| 242 | 1x | if(result != 0) | |
| 243 | { | ||
| 244 | ✗ | ec.assign(errno, | |
| 245 | system::generic_category()); | ||
| 246 | ✗ | return 0; | |
| 247 | } | ||
| 248 | 1x | long size = std::ftell(f_); | |
| 249 | 1x | if(size == -1L) | |
| 250 | { | ||
| 251 | ✗ | ec.assign(errno, | |
| 252 | system::generic_category()); | ||
| 253 | ✗ | std::fseek(f_, pos, SEEK_SET); | |
| 254 | ✗ | return 0; | |
| 255 | } | ||
| 256 | 1x | result = std::fseek(f_, pos, SEEK_SET); | |
| 257 | 1x | if(result != 0) | |
| 258 | ✗ | ec.assign(errno, | |
| 259 | system::generic_category()); | ||
| 260 | else | ||
| 261 | 1x | ec = {}; | |
| 262 | 1x | return size; | |
| 263 | } | ||
| 264 | |||
| 265 | std::uint64_t | ||
| 266 | 3x | file_stdio:: | |
| 267 | pos( | ||
| 268 | system::error_code& ec) const | ||
| 269 | { | ||
| 270 | 3x | if(! f_) | |
| 271 | { | ||
| 272 | 1x | ec = make_error_code( | |
| 273 | system::errc::bad_file_descriptor); | ||
| 274 | 1x | return 0; | |
| 275 | } | ||
| 276 | 2x | long pos = std::ftell(f_); | |
| 277 | 2x | if(pos == -1L) | |
| 278 | { | ||
| 279 | ✗ | ec.assign(errno, | |
| 280 | system::generic_category()); | ||
| 281 | ✗ | return 0; | |
| 282 | } | ||
| 283 | 2x | ec = {}; | |
| 284 | 2x | return pos; | |
| 285 | } | ||
| 286 | |||
| 287 | void | ||
| 288 | 2x | file_stdio:: | |
| 289 | seek(std::uint64_t offset, | ||
| 290 | system::error_code& ec) | ||
| 291 | { | ||
| 292 | 2x | if(! f_) | |
| 293 | { | ||
| 294 | 1x | ec = make_error_code( | |
| 295 | system::errc::bad_file_descriptor); | ||
| 296 | 1x | return; | |
| 297 | } | ||
| 298 | 1x | if(offset > static_cast<std::uint64_t>((std::numeric_limits<long>::max)())) | |
| 299 | { | ||
| 300 | ✗ | ec = make_error_code( | |
| 301 | system::errc::invalid_seek); | ||
| 302 | ✗ | return; | |
| 303 | } | ||
| 304 | 1x | int result = std::fseek(f_, | |
| 305 | static_cast<long>(offset), SEEK_SET); | ||
| 306 | 1x | if(result != 0) | |
| 307 | ✗ | ec.assign(errno, | |
| 308 | system::generic_category()); | ||
| 309 | else | ||
| 310 | 1x | ec = {}; | |
| 311 | } | ||
| 312 | |||
| 313 | std::size_t | ||
| 314 | 3x | file_stdio:: | |
| 315 | read(void* buffer, std::size_t n, | ||
| 316 | system::error_code& ec) | ||
| 317 | { | ||
| 318 | 3x | if(! f_) | |
| 319 | { | ||
| 320 | 1x | ec = make_error_code( | |
| 321 | system::errc::bad_file_descriptor); | ||
| 322 | 1x | return 0; | |
| 323 | } | ||
| 324 | 2x | auto nread = std::fread(buffer, 1, n, f_); | |
| 325 | 2x | if(std::ferror(f_)) | |
| 326 | { | ||
| 327 | ✗ | ec.assign(errno, | |
| 328 | system::generic_category()); | ||
| 329 | ✗ | return 0; | |
| 330 | } | ||
| 331 | 2x | return nread; | |
| 332 | } | ||
| 333 | |||
| 334 | std::size_t | ||
| 335 | 5x | file_stdio:: | |
| 336 | write(void const* buffer, std::size_t n, | ||
| 337 | system::error_code& ec) | ||
| 338 | { | ||
| 339 | 5x | if(! f_) | |
| 340 | { | ||
| 341 | 1x | ec = make_error_code( | |
| 342 | system::errc::bad_file_descriptor); | ||
| 343 | 1x | return 0; | |
| 344 | } | ||
| 345 | 4x | auto nwritten = std::fwrite(buffer, 1, n, f_); | |
| 346 | 4x | if(std::ferror(f_)) | |
| 347 | { | ||
| 348 | ✗ | ec.assign(errno, | |
| 349 | system::generic_category()); | ||
| 350 | ✗ | return 0; | |
| 351 | } | ||
| 352 | 4x | return nwritten; | |
| 353 | } | ||
| 354 | |||
| 355 | } // detail | ||
| 356 | } // http | ||
| 357 | } // boost | ||
| 358 |