mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-11-25 11:45:53 +01:00
165 lines
3.5 KiB
C++
165 lines
3.5 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd. All rights reserved. */
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/* rcg10142001 Implemented. */
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// !!! FIXME: rcg10142001 This should really be using CTStrings...
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pwd.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <sys/param.h>
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#include <unistd.h>
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#include <Engine/Engine.h>
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#include <Engine/Base/FileSystem.h>
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#include "SDL.h"
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ENGINE_API CFileSystem *_pFileSystem = NULL;
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// Stolen from SDL2/src/filesystem/unix/SDL_sysfilesystem.c
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static char * readSymLink(const char *path)
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{
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char *retval = NULL;
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ssize_t len = 64;
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ssize_t rc = -1;
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while (1)
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{
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char *ptr = (char *) SDL_realloc(retval, (size_t) len);
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if (ptr == NULL) {
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SDL_OutOfMemory();
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break;
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}
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retval = ptr;
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rc = readlink(path, retval, len);
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if (rc == -1) {
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break; /* not a symlink, i/o error, etc. */
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} else if (rc < len) {
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retval[rc] = '\0'; /* readlink doesn't null-terminate. */
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/* try to shrink buffer... */
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ptr = (char *) SDL_realloc(retval, strlen(retval) + 1);
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if (ptr != NULL)
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retval = ptr; /* oh well if it failed. */
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return retval; /* we're good to go. */
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}
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len *= 2; /* grow buffer, try again. */
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}
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SDL_free(retval);
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return NULL;
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}
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class CUnixFileSystem : public CFileSystem
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{
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public:
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CUnixFileSystem(const char *argv0, const char *gamename);
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virtual ~CUnixFileSystem(void);
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virtual void GetExecutablePath(char *buf, ULONG bufSize);
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virtual void GetUserDirectory(char *buf, ULONG bufSize);
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virtual CDynamicArray<CTString> *FindFiles(const char *dir,
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const char *wildcard);
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protected:
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char *exePath;
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char *userDir;
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};
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CFileSystem *CFileSystem::GetInstance(const char *argv0, const char *gamename)
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{
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return(new CUnixFileSystem(argv0, gamename));
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}
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const char *CFileSystem::GetDirSeparator(void)
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{
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return("/");
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}
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BOOL CFileSystem::IsDummyFile(const char *fname)
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{
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return( (strcmp(fname, ".") == 0) || (strcmp(fname, "..") == 0) );
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}
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BOOL CFileSystem::Exists(const char *fname)
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{
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struct stat s;
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if (stat(fname, &s) == -1)
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return(FALSE);
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return(TRUE);
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}
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BOOL CFileSystem::IsDirectory(const char *fname)
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{
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struct stat s;
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if (stat(fname, &s) == -1)
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return(FALSE);
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return(S_ISDIR(s.st_mode) ? TRUE : FALSE);
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}
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CUnixFileSystem::CUnixFileSystem(const char *argv0, const char *gamename)
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{
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exePath = readSymLink("/proc/self/exe");
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userDir = SDL_GetPrefPath("Serious Engine", gamename);
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}
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CUnixFileSystem::~CUnixFileSystem(void)
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{
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SDL_free(userDir);
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SDL_free(exePath);
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}
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void CUnixFileSystem::GetExecutablePath(char *buf, ULONG bufSize)
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{
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SDL_snprintf(buf, bufSize, "%s", exePath);
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}
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void CUnixFileSystem::GetUserDirectory(char *buf, ULONG bufSize)
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{
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SDL_snprintf(buf, bufSize, "%s", userDir);
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}
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CDynamicArray<CTString> *CUnixFileSystem::FindFiles(const char *dir,
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const char *wildcard)
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{
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CDynamicArray<CTString> *retval = new CDynamicArray<CTString>;
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DIR *d = opendir(dir);
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if (d != NULL)
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{
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struct dirent *dent;
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while ((dent = readdir(d)) != NULL)
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{
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CTString str(dent->d_name);
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if (str.Matches(wildcard))
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*retval->New() = str;
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}
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closedir(d);
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}
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return(retval);
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}
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// end of UnixFileSystem.cpp ...
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