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|
/*****************************************************************
|
| Neptune - File :: Posix Implementation
|
| (c) 2001-2008 Gilles Boccon-Gibod
| Author: Gilles Boccon-Gibod (bok@bok.net)
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#define _LARGEFILE_SOURCE
#define _LARGEFILE_SOURCE64
#define _LARGEFILE64_SOURCE
#define _FILE_OFFSET_BITS 64
#include <sys/stat.h>
#include <errno.h>
#if defined(_WIN32)
#include <direct.h>
#include <stdlib.h>
#include <stdio.h>
#else
#include <unistd.h>
#include <dirent.h>
#endif
#include "NptConfig.h"
#include "NptLogging.h"
#include "NptFile.h"
#include "NptUtils.h"
/*----------------------------------------------------------------------
| logging
+---------------------------------------------------------------------*/
//NPT_SET_LOCAL_LOGGER("neptune.posix.file")
/*----------------------------------------------------------------------
| Win32 adaptation
+---------------------------------------------------------------------*/
#if defined(_WIN32) || defined(_XBOX)
extern int NPT_stat_utf8(const char* path, NPT_stat_struct* info);
extern char* NPT_getcwd_utf8(char* path, unsigned int path_size);
#define getcwd NPT_getcwd_utf8
#define S_ISDIR(_m) (((_m)&_S_IFMT) == _S_IFDIR)
#define S_ISREG(_m) (((_m)&_S_IFMT) == _S_IFREG)
#define S_IWUSR _S_IWRITE
#endif
/*----------------------------------------------------------------------
| MapErrno
+---------------------------------------------------------------------*/
static NPT_Result
MapErrno(int err) {
switch (err) {
case EACCES: return NPT_ERROR_PERMISSION_DENIED;
case EPERM: return NPT_ERROR_PERMISSION_DENIED;
case ENOENT: return NPT_ERROR_NO_SUCH_FILE;
case ENAMETOOLONG: return NPT_ERROR_INVALID_PARAMETERS;
case EBUSY: return NPT_ERROR_FILE_BUSY;
case EROFS: return NPT_ERROR_FILE_NOT_WRITABLE;
case ENOTDIR: return NPT_ERROR_FILE_NOT_DIRECTORY;
case EEXIST: return NPT_ERROR_FILE_ALREADY_EXISTS;
case ENOSPC: return NPT_ERROR_FILE_NOT_ENOUGH_SPACE;
case ENOTEMPTY: return NPT_ERROR_DIRECTORY_NOT_EMPTY;
default: return NPT_ERROR_ERRNO(err);
}
}
#if !defined(_WIN32)
/*----------------------------------------------------------------------
| NPT_FilePath::Separator
+---------------------------------------------------------------------*/
const char* const NPT_FilePath::Separator = "/";
/*----------------------------------------------------------------------
| NPT_File::GetRoots
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::GetRoots(NPT_List<NPT_String>& roots)
{
roots.Clear();
roots.Add("/");
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_File::CreateDir
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::CreateDir(const char* path)
{
int result;
result = mkdir(path, 0755);
if (result != 0) {
return MapErrno(errno);
}
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_File::RemoveFile
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::RemoveFile(const char* path)
{
int result = unlink(path);
if (result != 0) return MapErrno(errno);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_File::RemoveDir
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::RemoveDir(const char* path)
{
int result = rmdir(path);
if (result != 0) return MapErrno(errno);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_File::Rename
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::Rename(const char* from_path, const char* to_path)
{
int result = rename(from_path, to_path);
if (result != 0) return MapErrno(errno);
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_File::ListDir
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::ListDir(const char* path,
NPT_List<NPT_String>& entries,
NPT_Ordinal start /* = 0 */,
NPT_Cardinal max /* = 0 */)
{
// default return value
entries.Clear();
// check the arguments
if (path == NULL) return NPT_ERROR_INVALID_PARAMETERS;
// list the entries
DIR *directory = opendir(path);
if (directory == NULL) return NPT_ERROR_NO_SUCH_ITEM;
NPT_Cardinal count = 0;
for (;;) {
struct dirent* entry_pointer = NULL;
#if defined(NPT_CONFIG_HAVE_READDIR_R)
struct dirent entry;
int result = readdir_r(directory, &entry, &entry_pointer);
if (result != 0 || entry_pointer == NULL) break;
#else
entry_pointer = readdir(directory);
if (entry_pointer == NULL) break;
#endif
// ignore odd names
if (entry_pointer->d_name[0] == '\0') continue;
// ignore . and ..
if (entry_pointer->d_name[0] == '.' &&
entry_pointer->d_name[1] == '\0') {
continue;
}
if (entry_pointer->d_name[0] == '.' &&
entry_pointer->d_name[1] == '.' &&
entry_pointer->d_name[2] == '\0') {
continue;
}
// continue if we still have some items to skip
if (start > 0) {
--start;
continue;
}
entries.Add(NPT_String(entry_pointer->d_name));
// stop when we have reached the maximum requested
if (max && ++count == max) break;
}
closedir(directory);
return NPT_SUCCESS;
}
#endif
/*----------------------------------------------------------------------
| NPT_File::GetWorkingDir
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::GetWorkingDir(NPT_String& path)
{
char buffer[1024+1];
char* dir = getcwd(buffer, 1024+1);
if (dir == NULL) return MapErrno(errno);
path = dir;
return NPT_SUCCESS;
}
/*----------------------------------------------------------------------
| NPT_File::GetInfo
+---------------------------------------------------------------------*/
NPT_Result
NPT_File::GetInfo(const char* path, NPT_FileInfo* info)
{
// default value
if (info) NPT_SetMemory(info, 0, sizeof(*info));
#if defined(_WIN32) || defined(_XBOX)
// On Windows, stat will fail if a dir ends with a separator
NPT_String _path = path;
_path.TrimRight("\\/");
// keep a separator at the end for drive names such as C:<backslash>
if (NPT_StringLength(_path) == 2 && _path[1] == ':') {
_path += NPT_FilePath::Separator;
}
#else
#define _path path
#endif
// get the file info
NPT_stat_struct stat_buffer;
int result = NPT_stat(_path, &stat_buffer);
if (result != 0) return MapErrno(errno);
// setup the returned fields
if (info) {
info->m_Size = stat_buffer.st_size;
if (S_ISREG(stat_buffer.st_mode)) {
info->m_Type = NPT_FileInfo::FILE_TYPE_REGULAR;
} else if (S_ISDIR(stat_buffer.st_mode)) {
info->m_Type = NPT_FileInfo::FILE_TYPE_DIRECTORY;
} else {
info->m_Type = NPT_FileInfo::FILE_TYPE_OTHER;
}
info->m_AttributesMask &= NPT_FILE_ATTRIBUTE_READ_ONLY;
if ((stat_buffer.st_mode & S_IWUSR) == 0) {
info->m_Attributes &= NPT_FILE_ATTRIBUTE_READ_ONLY;
}
#if defined(NPT_CONFIG_HAVE_STAT_ST_BIRTHTIME)
info->m_CreationTime.SetSeconds(stat_buffer.st_birthtime);
#elif defined(NPT_CONFIG_STAT_ST_CTIME_IS_ST_BIRTHTIME)
info->m_CreationTime.SetSeconds(stat_buffer.st_ctime);
#else
info->m_CreationTime.SetSeconds(0);
#endif
info->m_ModificationTime.SetSeconds(stat_buffer.st_mtime);
}
return NPT_SUCCESS;
}
|
