001:
002:
003:
004:
005:
006:
007:
008:
009:
010:
011:
012:
013:
014:
015:
016:
017:
018:
019:
020:
021:
022:
023:
024:
025:
026:
027:
028:
029:
030:
031:
032:
033:
034:
035:
036:
037:
038:
039:
040:
041:
042:
043:
044:
045:
046:
047:
048:
049:
050:
051:
052:
053:
054:
055:
056:
057:
058:
059:
060:
061:
062:
063:
064:
065:
066:
067:
068:
069:
070:
071:
072:
073:
074:
075:
076:
077:
078:
079:
080:
081:
082:
083:
084:
085:
086:
087:
088:
089:
090:
091:
092:
093:
094:
095:
096:
097:
098:
099:
100:
101:
102:
103:
104:
105:
106:
107:
108:
109:
110:
111:
112:
113:
114:
115:
116:
117:
118:
119:
120:
121:
122:
123:
124:
125:
126:
127:
128:
/*
* Copyright (c), Zeriph Enterprises
* All rights reserved.
*
* Contributor(s):
* Zechariah Perez, omni (at) zeriph (dot) com
*
* THIS SOFTWARE IS PROVIDED BY ZERIPH 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 ZERIPH AND 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.
*/
#include <omni/io.hpp>
#include <omni/defs/thread_def.hpp>
#include <omni/system.hpp>
#include <omni/environment.hpp>
#include <omni/exception.hpp>
#include <sys/stat.h>
#include <sys/types.h>
#if defined(OMNI_OS_WIN)
#include <windows.h>
#else
#include <dirent.h> // for *Nix directory access
#include <unistd.h>
#include <sys/time.h>
#include <fcntl.h>
#endif
#include <cstdarg>
#if defined(OMNI_OS_WIN)
// Because we are using Windows we need to convert the name to 8.3 format otherwise, it's possible to get
// an INVALID_HANDLE_VALUE returned from a valid file.
// Example: 'C:\Develop\C++\file.txt' could exist and there is nothing in the name more than 8 characters
// long, but because the folder 'C++' has invalid 8.3 characters in it, it will fail. 'C++' in 8.3 format is 'C__~1'
// CreateFile also needs a '\\?\' in front of the file to open an actual file handle ('\\.\' for a device)
#define OMNI_FILE_CHECKA_FW(file, ret) if (file.length() > MAX_PATH) { OMNI_ERRV_RETV_FW("file name exceeds maximum path length: ", MAX_PATH, omni::exceptions::path_exception(omni::string::util::to_string(file)), ret) }
#define OMNI_FILE_CHECKW_FW(file, ret) file; \
if (tf.length() > 4 && tf.substr(0, 4) != L"\\\\?\\") { tf = std::wstring(L"\\\\?\\") + tf; } \
if (tf.length() >= OMNI_MAX_PATH_FW) { OMNI_ERRV_RETV_FW("file name exceeds maximum path length: ", OMNI_MAX_PATH_FW, omni::exceptions::path_exception(omni::string::util::to_string(file)), ret) }
#endif
#if !defined(OMNI_IO_FILE_TRUNCATE_FN)
#define OMNI_IO_FILE_TRUNCATE_FN ::truncate
#endif
#if !defined(OMNI_IO_FILE_FTRUNCATE_FN)
#define OMNI_IO_FILE_FTRUNCATE_FN ::ftruncate
#endif
#define OMNI_IO_FILE_FW
#define OMNI_IO_FILE_INTERNAL_FW 1
#define OMNI_PATH_FW cfile
#define OMNI_L_FW(v) v
#define OMNI_STRING_T_FW std::string
#include <omni/xx/io_file.hxx>
#undef OMNI_PATH_FW
#undef OMNI_L_FW
#undef OMNI_STRING_T_FW
#undef OMNI_IO_FILE_INTERNAL_FW
#define OMNI_PATH_FW wfile
#define OMNI_L_FW(v) L##v
#define OMNI_STRING_T_FW std::wstring
#include <omni/xx/io_file.hxx>
#undef OMNI_PATH_FW
#undef OMNI_L_FW
#undef OMNI_STRING_T_FW
#undef OMNI_IO_FILE_FW
#define OMNI_IO_DIR_FW
#define OMNI_IO_DIR_INTERNAL_FW 1
#define OMNI_PATH_FW cdirectory
#define OMNI_CHAR_T_FW std_string_t
#define OMNI_L_FW(v) v
#define OMNI_STRING_T_FW std::string
#include <omni/xx/io_dir.hxx>
#undef OMNI_PATH_FW
#undef OMNI_CHAR_T_FW
#undef OMNI_L_FW
#undef OMNI_STRING_T_FW
#undef OMNI_IO_DIR_INTERNAL_FW
#define OMNI_PATH_FW wdirectory
#define OMNI_CHAR_T_FW std_wstring_t
#define OMNI_L_FW(v) L##v
#define OMNI_STRING_T_FW std::wstring
#include <omni/xx/io_dir.hxx>
#undef OMNI_PATH_FW
#undef OMNI_CHAR_T_FW
#undef OMNI_L_FW
#undef OMNI_STRING_T_FW
#undef OMNI_IO_DIR_FW
#define OMNI_IO_PATH_FW
#define OMNI_IO_PATH_INTERNAL_FW
#define OMNI_PATH_FW cpath
#define OMNI_CHAR_T_FW char_t
#define OMNI_L_FW(v) v
#define OMNI_STRING_T_FW std::string
#include <omni/xx/io_path.hxx>
#undef OMNI_PATH_FW
#undef OMNI_CHAR_T_FW
#undef OMNI_L_FW
#undef OMNI_STRING_T_FW
#undef OMNI_IO_PATH_INTERNAL_FW
#define OMNI_PATH_FW wpath
#define OMNI_CHAR_T_FW wide_char_t
#define OMNI_L_FW(v) L##v
#define OMNI_STRING_T_FW std::wstring
#include <omni/xx/io_path.hxx>
#undef OMNI_PATH_FW
#undef OMNI_CHAR_T_FW
#undef OMNI_L_FW
#undef OMNI_STRING_T_FW
#undef OMNI_IO_PATH_FW
#if defined(OMNI_OS_WIN)
#undef OMNI_FILE_CHECKA_FW
#undef OMNI_FILE_CHECKW_FW
#endif