diff options
Diffstat (limited to 'src/utils/virtfsrwops.cpp')
| -rw-r--r-- | src/utils/virtfsrwops.cpp | 433 |
1 files changed, 0 insertions, 433 deletions
diff --git a/src/utils/virtfsrwops.cpp b/src/utils/virtfsrwops.cpp deleted file mode 100644 index 837704465..000000000 --- a/src/utils/virtfsrwops.cpp +++ /dev/null @@ -1,433 +0,0 @@ -/* - * The ManaPlus Client - * Copyright (C) 2013-2017 The ManaPlus Developers - * - * This file is part of The ManaPlus Client. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* - * This code provides a glue layer between PhysicsFS and Simple Directmedia - * Layer's (SDL) RWops i/o abstraction. - * - * License: this code is public domain. I make no warranty that it is useful, - * correct, harmless, or environmentally safe. - * - * This particular file may be used however you like, including copying it - * verbatim into a closed-source project, exploiting it commercially, and - * removing any trace of my name from the source (although I hope you won't - * do that). I welcome enhancements and corrections to this file, but I do - * not require you to send me patches if you make changes. This code has - * NO WARRANTY. - * - * Unless otherwise stated, the rest of PhysicsFS falls under the zlib license. - * Please see LICENSE.txt in the root of the source tree. - * - * SDL falls under the LGPL license. You can get SDL at http://www.libsdl.org/ - * - * This file was written by Ryan C. Gordon. (icculus@icculus.org). - * - * Copyright (C) 2012-2017 The ManaPlus Developers - */ - -#include "utils/virtfsrwops.h" - -#include "logger.h" - -#ifdef DEBUG_VIRTFS -#include "utils/debugmemoryobject.h" - -#include <map> -#endif // DEBUG_VIRTFS - -#include "utils/fuzzer.h" -#include "utils/virtfs.h" - -#include "debug.h" - -#ifdef USE_SDL2 -#define RWOPSINT int64_t -#define RWOPSSIZE size_t -#else // USE_SDL2 -#define RWOPSINT int32_t -#define RWOPSSIZE int -#endif // USE_SDL2 - -#ifdef DUMP_LEAKED_RESOURCES -static int openedRWops = 0; -#endif // DUMP_LEAKED_RESOURCES - -#ifdef DEBUG_VIRTFS -namespace -{ - std::map<void*, VirtFs::DebugMemoryObject*> mRWops; -} // namespace - -static SDL_RWops *addDebugRWops(SDL_RWops *restrict const rwops, - const char *restrict const name, - const char *restrict const file, - const unsigned line) -{ - if (!rwops) - return nullptr; - - mRWops[rwops] = new VirtFs::DebugMemoryObject(name, file, line); - return rwops; -} - -static void deleteDebugRWops(SDL_RWops *const rwops) -{ - if (!rwops) - return; - - std::map<void*, VirtFs::DebugMemoryObject*>::iterator it = - mRWops.find(rwops); - if (it == mRWops.end()) - { - logger->log("bad RWops delete: %p", static_cast<void*>(rwops)); - } - else - { - VirtFs::DebugMemoryObject *const obj = (*it).second; - if (obj) - { - mRWops.erase(rwops); - delete obj; - } - } -} - -void VirtFs::reportLeaks() -{ - if (!mRWops.empty()) - { - logger->log("RWops leaks detected"); - std::map<void*, VirtFs::DebugMemoryObject*>::iterator it = - mRWops.begin(); - const std::map<void*, VirtFs::DebugMemoryObject*>::iterator - it_end = mRWops.end(); - for (; it != it_end; ++it) - { - VirtFs::DebugMemoryObject *obj = (*it).second; - if (obj) - { - logger->log("file: %s at %s", obj->mName.c_str(), - obj->mAddFile.c_str()); - delete obj; - } - } - mRWops.clear(); - } -} -#endif // DEBUG_VIRTFS - -static RWOPSINT virtfsrwops_seek(SDL_RWops *const rw, - const RWOPSINT offset, - const int whence) -{ - if (!rw) - return -1; - VirtFile *const handle = static_cast<VirtFile *const>( - rw->hidden.unknown.data1); - RWOPSINT pos = 0; - - if (whence == SEEK_SET) - { - pos = offset; - } /* if */ - else if (whence == SEEK_CUR) - { - const int64_t current = VirtFs::tell(handle); - if (current == -1) - { - logger->assertLog( - "virtfsrwops_seek: Can't find position in file: %s", - VirtFs::getLastError()); - return -1; - } /* if */ - - pos = CAST_S32(current); - if (static_cast<int64_t>(pos) != current) - { - logger->assertLog("virtfsrwops_seek: " - "Can't fit current file position in an int!"); - return -1; - } /* if */ - - if (offset == 0) /* this is a "tell" call. We're done. */ - return pos; - - pos += offset; - } /* else if */ - else if (whence == SEEK_END) - { - const int64_t len = VirtFs::fileLength(handle); - if (len == -1) - { - logger->assertLog("virtfsrwops_seek:Can't find end of file: %s", - VirtFs::getLastError()); - return -1; - } /* if */ - - pos = static_cast<RWOPSINT>(len); - if (static_cast<int64_t>(pos) != len) - { - logger->assertLog("virtfsrwops_seek: " - "Can't fit end-of-file position in an int!"); - return -1; - } /* if */ - - pos += offset; - } /* else if */ - else - { - logger->assertLog("virtfsrwops_seek: Invalid 'whence' parameter."); - return -1; - } /* else */ - - if (pos < 0) - { - logger->assertLog("virtfsrwops_seek: " - "Attempt to seek past start of file."); - return -1; - } /* if */ - - if (!VirtFs::seek(handle, static_cast<uint64_t>(pos))) - { - logger->assertLog("virtfsrwops_seek: seek error: %s", - VirtFs::getLastError()); - return -1; - } /* if */ - - return pos; -} /* virtfsrwops_seek */ - -static RWOPSSIZE virtfsrwops_read(SDL_RWops *const rw, - void *const ptr, - const RWOPSSIZE size, - const RWOPSSIZE maxnum) -{ - if (!rw) - return 0; - VirtFile *const handle = static_cast<VirtFile *const>( - rw->hidden.unknown.data1); - const int64_t rc = VirtFs::read(handle, ptr, - CAST_U32(size), - CAST_U32(maxnum)); - if (rc != static_cast<int64_t>(maxnum)) - { - if (!VirtFs::eof(handle)) /* not EOF? Must be an error. */ - { - logger->assertLog("virtfsrwops_seek: read error: %s", - VirtFs::getLastError()); - } - } /* if */ - - return CAST_S32(rc); -} /* virtfsrwops_read */ - -static RWOPSSIZE virtfsrwops_write(SDL_RWops *const rw, - const void *const ptr, - const RWOPSSIZE size, - const RWOPSSIZE num) -{ - if (!rw) - return 0; - VirtFile *const handle = static_cast<VirtFile *const>( - rw->hidden.unknown.data1); - const int64_t rc = VirtFs::write(handle, ptr, - CAST_U32(size), - CAST_U32(num)); - if (rc != static_cast<int64_t>(num)) - { - logger->assertLog("virtfsrwops_seek: write error: %s", - VirtFs::getLastError()); - } - - return CAST_S32(rc); -} /* virtfsrwops_write */ - -static int virtfsrwops_close(SDL_RWops *const rw) -{ - if (!rw) - return 0; - VirtFile *const handle = static_cast<VirtFile*>( - rw->hidden.unknown.data1); - if (!VirtFs::close(handle)) - { - logger->assertLog("virtfsrwops_seek: close error: %s", - VirtFs::getLastError()); - return -1; - } /* if */ - - SDL_FreeRW(rw); -#ifdef DUMP_LEAKED_RESOURCES - if (openedRWops <= 0) - logger->assertLog("virtfsrwops_seek: closing already closed RWops"); - openedRWops --; -#endif // DUMP_LEAKED_RESOURCES -#ifdef DEBUG_VIRTFS - deleteDebugRWops(rw); -#endif // DEBUG_VIRTFS - - return 0; -} /* virtfsrwops_close */ - -#ifdef USE_SDL2 -static RWOPSINT virtfsrwops_size(SDL_RWops *const rw) -{ - VirtFile *const handle = static_cast<VirtFile *const>( - rw->hidden.unknown.data1); - return VirtFs::fileLength(handle); -} /* virtfsrwops_size */ -#endif // USE_SDL2 - -static SDL_RWops *create_rwops(VirtFile *const file) -{ - SDL_RWops *retval = nullptr; - - if (!file) - { - logger->assertLog("virtfsrwops_seek: create rwops error: %s", - VirtFs::getLastError()); - } - else - { - retval = SDL_AllocRW(); - if (retval) - { -#ifdef USE_SDL2 - retval->size = &virtfsrwops_size; -#endif // USE_SDL2 - - retval->seek = &virtfsrwops_seek; - retval->read = &virtfsrwops_read; - retval->write = &virtfsrwops_write; - retval->close = &virtfsrwops_close; - retval->hidden.unknown.data1 = file; - } /* if */ -#ifdef DUMP_LEAKED_RESOURCES - openedRWops ++; -#endif // DUMP_LEAKED_RESOURCES - } /* else */ - - return retval; -} /* create_rwops */ - -SDL_RWops *VirtFs::MakeRWops(VirtFile *const handle) -{ - SDL_RWops *retval = nullptr; - if (!handle) - { - logger->assertLog("virtfsrwops_seek: NULL pointer passed to " - "RWopsmakeRWops()."); - } - else - { - retval = create_rwops(handle); - } - - return retval; -} /* RWopsmakeRWops */ - -#ifdef __APPLE__ -static bool checkFilePath(const std::string &restrict fname) -{ - if (fname.empty()) - return false; - if (!VirtFs::exists(fname) || VirtFs::isDirectory(fname)) - return false; - return true; -} -#endif // __APPLE__ - -#ifdef DEBUG_VIRTFS -#undef RWopsOpenRead -SDL_RWops *VirtFs::RWopsOpenRead(const std::string &restrict fname, - const char *restrict const file, - const unsigned line) -#else // DEBUG_VIRTFS -SDL_RWops *VirtFs::RWopsOpenRead(const std::string &restrict fname) -#endif // DEBUG_VIRTFS -{ - BLOCK_START("RWopsopenRead") -#ifdef __APPLE__ - if (!checkFilePath(fname)) - return nullptr; -#endif // __APPLE__ -#ifdef USE_FUZZER - if (Fuzzer::conditionTerminate(fname)) - return nullptr; -#endif // USE_FUZZER -#ifdef USE_PROFILER - -#ifdef DEBUG_VIRTFS - SDL_RWops *const ret = addDebugRWops( - create_rwops(VirtFs::openRead(fname)), - fname, - file, - line); -#else // DEBUG_VIRTFS - SDL_RWops *const ret = create_rwops(VirtFs::openRead(fname)); -#endif // DEBUG_VIRTFS - - BLOCK_END("RWopsopenRead") - return ret; -#else // USE_PROFILER - -#ifdef DEBUG_VIRTFS - return addDebugRWops( - create_rwops(VirtFs::openRead(fname)), - fname, - file, - line); -#else // DEBUG_VIRTFS - return create_rwops(VirtFs::openRead(fname)); -#endif // DEBUG_VIRTFS -#endif // USE_PROFILER -} /* RWopsopenRead */ - -SDL_RWops *VirtFs::RWopsOpenWrite(const std::string &restrict fname) -{ -#ifdef __APPLE__ - if (!checkFilePath(fname)) - return nullptr; -#endif // __APPLE__ - - return create_rwops(VirtFs::openWrite(fname)); -} /* RWopsopenWrite */ - -SDL_RWops *VirtFs::RWopsOpenAppend(const std::string &restrict fname) -{ -#ifdef __APPLE__ - if (!checkFilePath(fname)) - return nullptr; -#endif // __APPLE__ - - return create_rwops(VirtFs::openAppend(fname)); -} /* RWopsopenAppend */ - -#ifdef DUMP_LEAKED_RESOURCES -void VirtFs::reportRWops() -{ - if (openedRWops) - { - logger->assertLog("virtfsrwops_seek: leaking RWops: %d", - openedRWops); - } -} -#endif // DUMP_LEAKED_RESOURCES - -/* end of physfsrwops.c ... */ |