diff options
Diffstat (limited to 'libs/assimp/code/Common/DefaultIOStream.cpp')
| -rw-r--r-- | libs/assimp/code/Common/DefaultIOStream.cpp | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/libs/assimp/code/Common/DefaultIOStream.cpp b/libs/assimp/code/Common/DefaultIOStream.cpp deleted file mode 100644 index e30f26a..0000000 --- a/libs/assimp/code/Common/DefaultIOStream.cpp +++ /dev/null @@ -1,180 +0,0 @@ -/* ---------------------------------------------------------------------------- -Open Asset Import Library (assimp) ---------------------------------------------------------------------------- - -Copyright (c) 2006-2022, assimp team - -All rights reserved. - -Redistribution and use of this software in source and binary forms, -with or without modification, are permitted provided that the following -conditions are met: - -* Redistributions of source code must retain the above - copyright notice, this list of conditions and the - following disclaimer. - -* Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the - following disclaimer in the documentation and/or other - materials provided with the distribution. - -* Neither the name of the assimp team, nor the names of its - contributors may be used to endorse or promote products - derived from this software without specific prior - written permission of the assimp team. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---------------------------------------------------------------------------- -*/ -/** @file DefaultIOStream.cpp - * @brief Default File I/O implementation for #Importer - */ - -#include <assimp/DefaultIOStream.h> -#include <assimp/ai_assert.h> -#include <sys/stat.h> -#include <sys/types.h> - -using namespace Assimp; - -namespace { - -template <size_t sizeOfPointer> -inline size_t select_ftell(FILE *file) { - return ::ftell(file); -} - -template <size_t sizeOfPointer> -inline int select_fseek(FILE *file, int64_t offset, int origin) { - return ::fseek(file, static_cast<long>(offset), origin); -} - - - -#if defined _WIN32 && (!defined __GNUC__ || __MSVCRT_VERSION__ >= 0x0601) -template <> -inline size_t select_ftell<8>(FILE *file) { - return (size_t)::_ftelli64(file); -} - -template <> -inline int select_fseek<8>(FILE *file, int64_t offset, int origin) { - return ::_fseeki64(file, offset, origin); -} - -#endif // #if defined _WIN32 && (!defined __GNUC__ || __MSVCRT_VERSION__ >= 0x0601) - -} // namespace - -// ---------------------------------------------------------------------------------- -DefaultIOStream::~DefaultIOStream() { - if (mFile) { - ::fclose(mFile); - } -} - -// ---------------------------------------------------------------------------------- -size_t DefaultIOStream::Read(void *pvBuffer, - size_t pSize, - size_t pCount) { - if (0 == pCount) { - return 0; - } - ai_assert(nullptr != pvBuffer); - ai_assert(0 != pSize); - - return (mFile ? ::fread(pvBuffer, pSize, pCount, mFile) : 0); -} - -// ---------------------------------------------------------------------------------- -size_t DefaultIOStream::Write(const void *pvBuffer, - size_t pSize, - size_t pCount) { - ai_assert(nullptr != pvBuffer); - ai_assert(0 != pSize); - - return (mFile ? ::fwrite(pvBuffer, pSize, pCount, mFile) : 0); -} - -// ---------------------------------------------------------------------------------- -aiReturn DefaultIOStream::Seek(size_t pOffset, - aiOrigin pOrigin) { - if (!mFile) { - return AI_FAILURE; - } - - // Just to check whether our enum maps one to one with the CRT constants - static_assert(aiOrigin_CUR == SEEK_CUR && - aiOrigin_END == SEEK_END && aiOrigin_SET == SEEK_SET, - "aiOrigin_CUR == SEEK_CUR && \ - aiOrigin_END == SEEK_END && aiOrigin_SET == SEEK_SET"); - - // do the seek - return (0 == select_fseek<sizeof(void *)>(mFile, (int64_t)pOffset, (int)pOrigin) ? AI_SUCCESS : AI_FAILURE); -} - -// ---------------------------------------------------------------------------------- -size_t DefaultIOStream::Tell() const { - if (!mFile) { - return 0; - } - return select_ftell<sizeof(void *)>(mFile); -} - -// ---------------------------------------------------------------------------------- -size_t DefaultIOStream::FileSize() const { - if (!mFile || mFilename.empty()) { - return 0; - } - - if (SIZE_MAX == mCachedSize) { - - // Although fseek/ftell would allow us to reuse the existing file handle here, - // it is generally unsafe because: - // - For binary streams, it is not technically well-defined - // - For text files the results are meaningless - // That's why we use the safer variant fstat here. - // - // See here for details: - // https://www.securecoding.cert.org/confluence/display/seccode/FIO19-C.+Do+not+use+fseek()+and+ftell()+to+compute+the+size+of+a+regular+file -#if defined _WIN32 && (!defined __GNUC__ || __MSVCRT_VERSION__ >= 0x0601) - struct __stat64 fileStat; - //using fileno + fstat avoids having to handle the filename - int err = _fstat64(_fileno(mFile), &fileStat); - if (0 != err) - return 0; - mCachedSize = (size_t)(fileStat.st_size); -#elif defined __GNUC__ || defined __APPLE__ || defined __MACH__ || defined __FreeBSD__ - struct stat fileStat; - int err = stat(mFilename.c_str(), &fileStat); - if (0 != err) - return 0; - const unsigned long long cachedSize = fileStat.st_size; - mCachedSize = static_cast<size_t>(cachedSize); -#else -#error "Unknown platform" -#endif - } - return mCachedSize; -} - -// ---------------------------------------------------------------------------------- -void DefaultIOStream::Flush() { - if (mFile) { - ::fflush(mFile); - } -} - -// ---------------------------------------------------------------------------------- |