190 lines
3.6 KiB
C
190 lines
3.6 KiB
C
/* $Id: physfsx.h,v 1.9 2005-02-25 04:25:58 chris Exp $ */
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/*
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*
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* Some simple physfs extensions
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*
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*/
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#ifndef PHYSFSX_H
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#define PHYSFSX_H
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#if !defined(macintosh) && !defined(_MSC_VER)
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#include <sys/param.h>
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#endif
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#if defined(__linux__)
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#include <sys/vfs.h>
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#elif defined(__MACH__) && defined(__APPLE__)
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#include <sys/mount.h>
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#endif
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#include <string.h>
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#include <physfs.h>
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#include "pstypes.h"
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#include "error.h"
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static inline int PHYSFSX_readString(PHYSFS_file *file, char *s)
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{
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char *ptr = s;
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if (PHYSFS_eof(file))
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*ptr = 0;
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else
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do
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PHYSFS_read(file, ptr, 1, 1);
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while (!PHYSFS_eof(file) && *ptr++ != 0);
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return strlen(s);
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}
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static inline int PHYSFSX_gets(PHYSFS_file *file, char *s)
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{
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char *ptr = s;
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if (PHYSFS_eof(file))
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*ptr = 0;
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else
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do
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PHYSFS_read(file, ptr, 1, 1);
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while (!PHYSFS_eof(file) && *ptr++ != '\n');
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return strlen(s);
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}
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static inline int PHYSFSX_writeU8(PHYSFS_file *file, PHYSFS_uint8 val)
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{
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return PHYSFS_write(file, &val, 1, 1);
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}
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static inline int PHYSFSX_writeString(PHYSFS_file *file, char *s)
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{
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return PHYSFS_write(file, s, 1, strlen(s) + 1);
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}
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static inline int PHYSFSX_puts(PHYSFS_file *file, char *s)
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{
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return PHYSFS_write(file, s, 1, strlen(s));
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}
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static inline int PHYSFSX_putc(PHYSFS_file *file, int c)
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{
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unsigned char ch = (unsigned char)c;
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if (PHYSFS_write(file, &ch, 1, 1) < 1)
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return -1;
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else
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return (int)c;
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}
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static inline int PHYSFSX_getRealPath(const char *stdPath, char *realPath)
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{
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const char *realDir = PHYSFS_getRealDir(stdPath);
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const char *sep = PHYSFS_getDirSeparator();
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char *p;
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if (!realDir)
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{
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realDir = PHYSFS_getWriteDir();
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if (!realDir)
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return 0;
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}
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strncpy(realPath, realDir, PATH_MAX - 1);
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if (strlen(realPath) >= strlen(sep))
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{
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p = realPath + strlen(realPath) - strlen(sep);
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if (strcmp(p, sep)) // no sep at end of realPath
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strncat(realPath, sep, PATH_MAX - 1 - strlen(realPath));
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}
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if (strlen(stdPath) >= 1)
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if (*stdPath == '/')
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stdPath++;
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while (*stdPath)
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{
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if (*stdPath == '/')
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strncat(realPath, sep, PATH_MAX - 1 - strlen(realPath));
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else
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{
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if (strlen(realPath) < PATH_MAX - 2)
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{
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p = realPath + strlen(realPath);
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p[0] = *stdPath;
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p[1] = '\0';
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}
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}
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stdPath++;
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}
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return 1;
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}
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static inline int PHYSFSX_rename(char *oldpath, char *newpath)
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{
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char old[PATH_MAX], new[PATH_MAX];
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PHYSFSX_getRealPath(oldpath, old);
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PHYSFSX_getRealPath(newpath, new);
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return (rename(old, new) == 0);
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}
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// returns -1 if error
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// Gets bytes free in current write dir
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static inline PHYSFS_sint64 PHYSFSX_getFreeDiskSpace()
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{
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#if defined(__linux__) || (defined(__MACH__) && defined(__APPLE__))
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struct statfs sfs;
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if (!statfs(PHYSFS_getWriteDir(), &sfs))
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return (PHYSFS_sint64)(sfs.f_bavail * sfs.f_bsize);
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return -1;
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#else
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return 0x7FFFFFFF;
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#endif
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}
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//Open a file for reading, set up a buffer
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static inline PHYSFS_file *PHYSFSX_openReadBuffered(char *filename)
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{
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PHYSFS_file *fp;
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PHYSFS_uint64 bufSize;
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if (filename[0] == '\x01')
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{
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//FIXME: don't look in dir, only in hogfile
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filename++;
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}
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fp = PHYSFS_openRead(filename);
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if (!fp)
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return NULL;
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bufSize = PHYSFS_fileLength(fp);
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while (!PHYSFS_setBuffer(fp, bufSize) && bufSize)
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bufSize /= 2; // even if the error isn't memory full, for a 20MB file it'll only do this 8 times
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return fp;
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}
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//Open a file for writing, set up a buffer
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static inline PHYSFS_file *PHYSFSX_openWriteBuffered(char *filename)
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{
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PHYSFS_file *fp;
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PHYSFS_uint64 bufSize = 1024*1024; // hmm, seems like an OK size.
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fp = PHYSFS_openWrite(filename);
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if (!fp)
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return NULL;
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while (!PHYSFS_setBuffer(fp, bufSize) && bufSize)
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bufSize /= 2;
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return fp;
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}
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#endif /* PHYSFSX_H */
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