source: cpp/common/virtfile/stdiofile.cpp @ 1328

// This file is a part of Framsticks SDK.  http://www.framsticks.com/
// Copyright (C) 1999-2024  Maciej Komosinski and Szymon Ulatowski.
// See LICENSE.txt for details.

#include "stdiofile.h"
#include <common/nonstd_dir.h>
#include <common/nonstd_stdio.h>
#include <common/log.h>
#include <common/Convert.h>
#ifdef __ANDROID__
#include <common/dirs.h>
#include <common/platform/android/AndroidAPK_DIR.h>
#endif
#include <sys/stat.h>
#include <unistd.h>
#ifdef _WIN32
#include <sys/utime.h>
#else
#include <utime.h>
#endif

VirtFILE* StdioFileSystem::Vfopen(const char *path, const char *mode)
{
        //log_printf("Vfopen %s %s",path,mode);
#if defined USE_MFILE || defined _WIN32
        MFILE *f = mfopen(path, mode);
#else
        FILE *f = fopen(path, mode);
#endif
        //log_printf("%p",f);
        if (f) return new StdioFILE(f, path); else return NULL;
}

VirtDIR* StdioFileSystem::Vopendir(const char* path)
{
        //log_printf("Vopendir %s",path);
#ifdef __ANDROID__
        int resources_prefix_length = getAppResourcesDir().length();
        if (strncmp(path, getAppResourcesDir().c_str(), resources_prefix_length) == 0) //it is a resources dir
        {
                VirtDIR *vd = AndroidAPK_DIR::opendir(path + resources_prefix_length + 1); //+1 because we also skip '/' and start with a "relative" dir, otherwise it does not work.
                return vd;
        }
#endif

#ifdef _WIN32
        DIRTYPE *d = wopendir(Convert::utf8ToUtf16(path).c_str());
#else
        DIR *d = opendir(path);
#endif
        //log_printf("%p",d);
        if (d) return new StdioDIR(d); else return NULL;
}

bool StdioFileSystem::Vfexists(const char* path)
{
        return fileExists(path);
}

bool StdioFileSystem::Vdirexists(const char* path, bool is_writable)
{
#ifdef __ANDROID__
        int resources_prefix_length = getAppResourcesDir().length();
        if (strncmp(path, getAppResourcesDir().c_str(), resources_prefix_length) == 0) //it is a resources dir
        {
                if (is_writable)
                        return false;
                VirtDIR *vd = AndroidAPK_DIR::opendir(path + resources_prefix_length + 1); //+1 because we also skip '/' and start with a "relative" dir, otherwise it does not work.
                if (vd != NULL)
                {
                        delete vd;
                        return true;
                }
                else
                {
                        return false;
                }
        }
#endif
        return directoryExists(path, is_writable);
}

bool StdioFileSystem::Vdelete(const char* path)
{
        return removeFile(path);
}

bool StdioFileSystem::Vstat(const char* path, Stat* out)
{
#ifdef _WIN32
        //under windows, there are a few choices of _statXX structures: 32bit, 64bit, ansi, widechar (and their corresponding _statXX() functions). For the future: ensure utf8 filenames work.
        using stat = struct _stat64i32; //"struct" because there is also a function with the same name
        //struct _stat64i32 info; //an alternative, simple way if one does not want to use "using" above
#else
        struct //if there was "using" earlier, then we cannot use "struct" in type name
#endif
        stat info;
        if (_stat(path, &info) != 0) return false;
        out->is_file = S_ISREG(info.st_mode);
#if defined IPHONE && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
        out->modification_time = info.st_mtimespec.tv_sec;
#else
        out->modification_time = info.st_mtime;
#endif
        return true;
}

bool StdioFileSystem::Vsettime(const char* path, double timestamp)
{
#ifdef _WIN32
        //under windows, there are a few choices of _statXX structures: 32bit, 64bit, ansi, widechar (and their corresponding _statXX() functions). For the future: ensure utf8 filenames work.
        using stat = struct _stat64i32; //"struct" because there is also a function with the same name
        //struct _stat64i32 info; //an alternative, simple way if one does not want to use "using" above
#else
        struct //if there was "using" earlier, then we cannot use "struct" in type name
#endif
        stat info;
        if (_stat(path, &info) != 0) return false;
        struct utimbuf times;
#if defined IPHONE && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
        times.actime = info.st_atimespec.tv_sec;
#else
        times.actime = info.st_atime;
#endif
        times.modtime = (time_t)timestamp;
        return utime(path, &times) == 0;
}

#ifndef NO_STD_IN_OUT_ERR
void StdioFILE::setStdio()
{
        static StdioFILEDontClose si(stdin);
        static StdioFILEDontClose so(stdout);
        static StdioFILEDontClose se(stderr);
        setVstdin(&si);
        setVstdout(&so);
        setVstderr(&se);
}
#endif

dirent* StdioDIR::Vreaddir()
{
        //log_printf("Vreaddir %s",dir);
#ifdef _WIN32
        wdirent *wde = wreaddir(dir);
        if (wde == NULL) return NULL;
        strcpy(de.d_name, Convert::wstrToUtf8(wde->d_name).c_str());
        return &de;
#else
        return readdir(dir);
#endif
}