diff options
Diffstat (limited to 'src/fs/virtfs/fsdirrwops.cpp')
-rw-r--r-- | src/fs/virtfs/fsdirrwops.cpp | 269 |
1 files changed, 0 insertions, 269 deletions
diff --git a/src/fs/virtfs/fsdirrwops.cpp b/src/fs/virtfs/fsdirrwops.cpp deleted file mode 100644 index 47497a9d3..000000000 --- a/src/fs/virtfs/fsdirrwops.cpp +++ /dev/null @@ -1,269 +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/>. - */ - -#include "fs/virtfs/fsdirrwops.h" - -#include "fs/virtfs/file.h" - -#include "utils/cast.h" -#include "utils/checkutils.h" - -PRAGMA48(GCC diagnostic push) -PRAGMA48(GCC diagnostic ignored "-Wshadow") -#include <SDL_rwops.h> -PRAGMA48(GCC diagnostic pop) - -#include "debug.h" - -namespace VirtFs -{ - -namespace FsDir -{ - RWOPSINT rwops_seek(SDL_RWops *const rw, - const RWOPSINT offset, - const int whence) - { - if (rw == nullptr) - return -1; - File *const handle = static_cast<File *>( - rw->hidden.unknown.data1); - FILEHTYPE fd = handle->mFd; - RWOPSINT pos = 0; - - if (whence == SEEK_SET) - { - pos = offset; - } - else if (whence == SEEK_CUR) - { -#ifdef USE_FILE_FOPEN - const int64_t current = ftell(fd); -#else // USE_FILE_FOPEN - const int64_t current = lseek(fd, 0, SEEK_CUR); -#endif // USE_FILE_FOPEN - - if (current == -1) - { - logger->assertLog( - "VirtFs::rwops_seek: Can't find position in file."); - return -1; - } - - pos = CAST_S32(current); - if (static_cast<int64_t>(pos) != current) - { - logger->assertLog("VirtFs::rwops_seek: " - "Can't fit current file position in an int!"); - return -1; - } - - if (offset == 0) /* this is a "tell" call. We're done. */ - return pos; - - pos += offset; - } - else if (whence == SEEK_END) - { - int64_t len = 0; -#ifdef USE_FILE_FOPEN - const long curpos = ftell(fd); - if (curpos < 0) - { - reportAlways("FsDir::fileLength ftell error."); - return -1; - } - fseek(fd, 0, SEEK_END); - len = ftell(fd); -// fseek(fd, curpos, SEEK_SET); -#else // USE_FILE_FOPEN - struct stat statbuf; - if (fstat(fd, &statbuf) == -1) - { - reportAlways("FsDir::fileLength error."); - len = -1; - } - else - { - len = static_cast<int64_t>(statbuf.st_size); - } -#endif // USE_FILE_FOPEN - - if (len == -1) - { -#ifdef USE_FILE_FOPEN - if (fseek(fd, curpos, SEEK_SET) < 0) - { - reportAlways("FsDir::fileLength fseek error."); - } -#endif // USE_FILE_FOPEN - logger->assertLog( - "VirtFs::rwops_seek:Can't find end of file."); - return -1; - } - - pos = static_cast<RWOPSINT>(len); - if (static_cast<int64_t>(pos) != len) - { -#ifdef USE_FILE_FOPEN - fseek(fd, curpos, SEEK_SET); -#endif // USE_FILE_FOPEN - logger->assertLog("VirtFs::rwops_seek: " - "Can't fit end-of-file position in an int!"); - return -1; - } - - pos += offset; - } - else - { - logger->assertLog( - "VirtFs::rwops_seek: Invalid 'whence' parameter."); - return -1; - } - - if (pos < 0) - { - logger->assertLog("VirtFs::rwops_seek: " - "Attempt to seek past start of file."); - return -1; - } - - const int64_t res = FILESEEK(fd, pos, SEEK_SET); - if (res == -1) - { - logger->assertLog("VirtFs::rwops_seek: seek error."); - return -1; - } - - return pos; - } - - RWOPSSIZE rwops_read(SDL_RWops *const rw, - void *const ptr, - const RWOPSSIZE size, - const RWOPSSIZE maxnum) - { - if (rw == nullptr) - return 0; - File *const handle = static_cast<File *>( - rw->hidden.unknown.data1); - FILEHTYPE fd = handle->mFd; - -#ifdef USE_FILE_FOPEN - const int64_t rc = fread(ptr, size, maxnum, fd); -#else // USE_FILE_FOPEN - int max = size * maxnum; - int cnt = ::read(fd, ptr, max); - if (cnt <= 0) - return cnt; - const int64_t rc = cnt / size; -#endif // USE_FILE_FOPEN - -#ifndef USE_FILE_FOPEN - if (rc != static_cast<int64_t>(maxnum)) - { - const int64_t pos = lseek(fd, 0, SEEK_CUR); - struct stat statbuf; - if (fstat(fd, &statbuf) == -1) - { - reportAlways("FsDir::fileLength error."); - return CAST_S32(rc); - } - } -#endif // USE_FILE_FOPEN - return CAST_S32(rc); - } - - RWOPSSIZE rwops_write(SDL_RWops *const rw, - const void *const ptr, - const RWOPSSIZE size, - const RWOPSSIZE maxnum) - { - if (rw == nullptr) - return 0; - File *const handle = static_cast<File *>( - rw->hidden.unknown.data1); - FILEHTYPE fd = handle->mFd; - -#ifdef USE_FILE_FOPEN - const int64_t rc = fwrite(ptr, size, maxnum, fd); -#else // USE_FILE_FOPEN - int max = size * maxnum; - int cnt = ::write(fd, ptr, max); - if (cnt <= 0) - return cnt; - const int64_t rc = cnt / size; -#endif // USE_FILE_FOPEN - -#ifndef USE_FILE_FOPEN - if (rc != static_cast<int64_t>(maxnum)) - { - const int64_t pos = lseek(fd, 0, SEEK_CUR); - struct stat statbuf; - if (fstat(fd, &statbuf) == -1) - { - reportAlways("FsDir::fileLength error."); - return CAST_S32(rc); - } - } -#endif // USE_FILE_FOPEN - - return CAST_S32(rc); - } - - int rwops_close(SDL_RWops *const rw) - { - if (rw == nullptr) - return 0; - File *const handle = static_cast<File*>( - rw->hidden.unknown.data1); - delete handle; - SDL_FreeRW(rw); - return 0; - } - -#ifdef USE_SDL2 - RWOPSINT rwops_size(SDL_RWops *const rw) - { - File *const handle = static_cast<File *>( - rw->hidden.unknown.data1); - FILEHTYPE fd = handle->mFd; -#ifdef USE_FILE_FOPEN - const long pos = ftell(fd); - fseek(fd, 0, SEEK_END); - const long sz = ftell(fd); - fseek(fd, pos, SEEK_SET); - return sz; -#else // USE_FILE_FOPEN - struct stat statbuf; - if (fstat(fd, &statbuf) == -1) - { - reportAlways("FsDir::fileLength error."); - return -1; - } - return static_cast<int64_t>(statbuf.st_size); -#endif // USE_FILE_FOPEN - } -#endif // USE_SDL2 - -} // namespace FsDir - -} // namespace VirtFs |