platform/unix.c
author Ryan C. Gordon <icculus@icculus.org>
Sun, 11 Mar 2007 10:10:28 +0000
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/*
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 * Unix support routines for PhysicsFS.
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 *
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 * Please see the file LICENSE.txt in the source's root directory.
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 *
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 *  This file written by Ryan C. Gordon.
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 */
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/* BeOS uses beos.cpp and posix.c ... Cygwin and such use windows.c ... */
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#if ((!defined __BEOS__) && (!defined WIN32))
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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 <ctype.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <sys/stat.h>
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#include <sys/param.h>
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#include <dirent.h>
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#include <time.h>
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#include <errno.h>
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#include <sys/mount.h>
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#ifndef PHYSFS_DARWIN
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#  if defined(__MACH__) && defined(__APPLE__)
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#    define PHYSFS_DARWIN 1
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#    include <CoreFoundation/CoreFoundation.h>
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#    include <CoreServices/CoreServices.h>
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#    include <IOKit/IOKitLib.h>
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#    include <IOKit/storage/IOMedia.h>
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#    include <IOKit/storage/IOCDMedia.h>
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#    include <IOKit/storage/IODVDMedia.h>
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#  endif
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#endif
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#if (!defined PHYSFS_NO_PTHREADS_SUPPORT)
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#include <pthread.h>
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#endif
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#ifdef PHYSFS_HAVE_SYS_UCRED_H
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#  ifdef PHYSFS_HAVE_MNTENT_H
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#    undef PHYSFS_HAVE_MNTENT_H /* don't do both... */
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#  endif
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#  include <sys/ucred.h>
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#endif
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#ifdef PHYSFS_HAVE_MNTENT_H
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#include <mntent.h>
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#endif
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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/* Seems to get defined in some system header... */
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#ifdef Free
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#undef Free
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#endif
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const char *__PHYSFS_platformDirSeparator = "/";
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int __PHYSFS_platformInit(void)
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{
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    return(1);  /* always succeed. */
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} /* __PHYSFS_platformInit */
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int __PHYSFS_platformDeinit(void)
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{
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    return(1);  /* always succeed. */
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} /* __PHYSFS_platformDeinit */
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#ifdef PHYSFS_NO_CDROM_SUPPORT
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/* Stub version for platforms without CD-ROM support. */
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
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{
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} /* __PHYSFS_platformDetectAvailableCDs */
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#elif (defined PHYSFS_DARWIN)  /* "Big Nasty." */
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/*
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 * Code based on sample from Apple Developer Connection:
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 *  http://developer.apple.com/samplecode/Sample_Code/Devices_and_Hardware/Disks/VolumeToBSDNode/VolumeToBSDNode.c.htm
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 */
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static int darwinIsWholeMedia(io_service_t service)
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{
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    int retval = 0;
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    CFTypeRef wholeMedia;
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    if (!IOObjectConformsTo(service, kIOMediaClass))
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        return(0);
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    wholeMedia = IORegistryEntryCreateCFProperty(service,
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                                                 CFSTR(kIOMediaWholeKey),
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                                                 kCFAllocatorDefault, 0);
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    if (wholeMedia == NULL)
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        return(0);
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    retval = CFBooleanGetValue(wholeMedia);
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    CFRelease(wholeMedia);
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    return retval;
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} /* darwinIsWholeMedia */
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static int darwinIsMountedDisc(char *bsdName, mach_port_t masterPort)
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{
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    int retval = 0;
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    CFMutableDictionaryRef matchingDict;
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    kern_return_t rc;
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    io_iterator_t iter;
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    io_service_t service;
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    if ((matchingDict = IOBSDNameMatching(masterPort, 0, bsdName)) == NULL)
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        return(0);
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    rc = IOServiceGetMatchingServices(masterPort, matchingDict, &iter);
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    if ((rc != KERN_SUCCESS) || (!iter))
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        return(0);
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    service = IOIteratorNext(iter);
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    IOObjectRelease(iter);
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    if (!service)
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        return(0);
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    rc = IORegistryEntryCreateIterator(service, kIOServicePlane,
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             kIORegistryIterateRecursively | kIORegistryIterateParents, &iter);
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    if (!iter)
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        return(0);
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    if (rc != KERN_SUCCESS)
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    {
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        IOObjectRelease(iter);
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        return(0);
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    } /* if */
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    IOObjectRetain(service);  /* add an extra object reference... */
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    do
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    {
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        if (darwinIsWholeMedia(service))
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        {
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            if ( (IOObjectConformsTo(service, kIOCDMediaClass)) ||
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                 (IOObjectConformsTo(service, kIODVDMediaClass)) )
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            {
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                retval = 1;
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            } /* if */
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        } /* if */
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        IOObjectRelease(service);
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    } while ((service = IOIteratorNext(iter)) && (!retval));
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   157
                
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    IOObjectRelease(iter);
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    IOObjectRelease(service);
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    return(retval);
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} /* darwinIsMountedDisc */
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
570
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{
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    const char *devPrefix = "/dev/";
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    int prefixLen = strlen(devPrefix);
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    mach_port_t masterPort = 0;
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    struct statfs *mntbufp;
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    int i, mounts;
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    if (IOMasterPort(MACH_PORT_NULL, &masterPort) != KERN_SUCCESS)
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        BAIL_MACRO(ERR_OS_ERROR, /*return void*/);
570
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    mounts = getmntinfo(&mntbufp, MNT_WAIT);  /* NOT THREAD SAFE! */
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    for (i = 0; i < mounts; i++)
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    {
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        char *dev = mntbufp[i].f_mntfromname;
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        char *mnt = mntbufp[i].f_mntonname;
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        if (strncmp(dev, devPrefix, prefixLen) != 0)  /* a virtual device? */
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            continue;
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        dev += prefixLen;
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        if (darwinIsMountedDisc(dev, masterPort))
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            cb(data, mnt);
570
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    } /* for */
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} /* __PHYSFS_platformDetectAvailableCDs */
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#elif (defined PHYSFS_HAVE_SYS_UCRED_H)
117
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
117
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{
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    int i;
381
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    struct statfs *mntbufp = NULL;
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    int mounts = getmntinfo(&mntbufp, MNT_WAIT);
117
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381
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    for (i = 0; i < mounts; i++)
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   199
    {
117
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        int add_it = 0;
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381
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        if (strcmp(mntbufp[i].f_fstypename, "iso9660") == 0)
117
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            add_it = 1;
381
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        else if (strcmp( mntbufp[i].f_fstypename, "cd9660") == 0)
191
0b95b9fd25e3 Darwin patches.
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            add_it = 1;
225
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   206
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        /* add other mount types here */
117
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        if (add_it)
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            cb(data, mntbufp[i].f_mntonname);
381
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   211
    } /* for */
117
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} /* __PHYSFS_platformDetectAvailableCDs */
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   213
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#elif (defined PHYSFS_HAVE_MNTENT_H)
117
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
17
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{
63
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    FILE *mounts = NULL;
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    struct mntent *ent = NULL;
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   221
    mounts = setmntent("/etc/mtab", "r");
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73a2641375a0 Cleaned up some minor bloat with my new evil GOTO_*_MACRO macros.
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    BAIL_IF_MACRO(mounts == NULL, ERR_IO_ERROR, /*return void*/);
63
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   224
    while ( (ent = getmntent(mounts)) != NULL )
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   225
    {
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   226
        int add_it = 0;
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   227
        if (strcmp(ent->mnt_type, "iso9660") == 0)
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            add_it = 1;
225
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   229
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   230
        /* add other mount types here */
20
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   231
63
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   232
        if (add_it)
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   233
            cb(data, ent->mnt_dir);
63
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diff changeset
   234
    } /* while */
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   235
cb9a4714b844 Added CD-ROM detection code.
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   236
    endmntent(mounts);
cb9a4714b844 Added CD-ROM detection code.
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   237
117
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   238
} /* __PHYSFS_platformDetectAvailableCDs */
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   239
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   240
#endif
17
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233
1b74a7df1ca6 Split some of the unix.c code out to posix.c for BeOS to use.
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   243
/* this is in posix.c ... */
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   244
extern char *__PHYSFS_platformCopyEnvironmentVariable(const char *varname);
20
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   245
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   246
225
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   247
/*
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   248
 * See where program (bin) resides in the $PATH specified by (envr).
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   249
 *  returns a copy of the first element in envr that contains it, or NULL
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   250
 *  if it doesn't exist or there were other problems. PHYSFS_SetError() is
393c0923c1b3 FIXME removal.
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diff changeset
   251
 *  called if we have a problem.
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   252
 *
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
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   253
 * (envr) will be scribbled over, and you are expected to allocator.Free() the
225
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 *  return value when you're done with it.
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 */
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static char *findBinaryInPath(const char *bin, char *envr)
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{
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    size_t alloc_size = 0;
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    char *exe = NULL;
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    char *start = envr;
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    char *ptr;
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   262
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    BAIL_IF_MACRO(bin == NULL, ERR_INVALID_ARGUMENT, NULL);
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    BAIL_IF_MACRO(envr == NULL, ERR_INVALID_ARGUMENT, NULL);
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    do
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    {
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        size_t size;
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        ptr = strchr(start, ':');  /* find next $PATH separator. */
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        if (ptr)
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            *ptr = '\0';
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        size = strlen(start) + strlen(bin) + 2;
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        if (size > alloc_size)
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        {
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            char *x = (char *) allocator.Realloc(exe, size);
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            if (x == NULL)
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            {
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                if (exe != NULL)
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                    allocator.Free(exe);
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                BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
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            } /* if */
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   283
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            alloc_size = size;
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            exe = x;
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        } /* if */
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   287
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        /* build full binary path... */
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        strcpy(exe, start);
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        if ((exe[0] == '\0') || (exe[strlen(exe) - 1] != '/'))
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            strcat(exe, "/");
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        strcat(exe, bin);
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   293
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        if (access(exe, X_OK) == 0)  /* Exists as executable? We're done. */
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        {
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            strcpy(exe, start);  /* i'm lazy. piss off. */
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            return(exe);
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        } /* if */
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        start = ptr + 1;  /* start points to beginning of next element. */
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   301
    } while (ptr != NULL);
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    if (exe != NULL)
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        allocator.Free(exe);
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   305
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    return(NULL);  /* doesn't exist in path. */
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   307
} /* findBinaryInPath */
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   308
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char *__PHYSFS_platformCalcBaseDir(const char *argv0)
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{
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    /* If there isn't a path on argv0, then look through the $PATH for it. */
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225
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    char *retval;
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    char *envr;
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    if (strchr(argv0, '/') != NULL)   /* default behaviour can handle this. */
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        return(NULL);
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    envr = __PHYSFS_platformCopyEnvironmentVariable("PATH");
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    BAIL_IF_MACRO(!envr, NULL, NULL);
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    retval = findBinaryInPath(argv0, envr);
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    allocator.Free(envr);
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    return(retval);
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} /* __PHYSFS_platformCalcBaseDir */
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/* Much like my college days, try to sleep for 10 milliseconds at a time... */
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void __PHYSFS_platformTimeslice(void)
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{
115
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    usleep( 10 * 1000 );           /* don't care if it fails. */
20
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} /* __PHYSFS_platformTimeslice */
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b331437b9ec0 Rewrote MacOSX/Darwin CD detection to use IOKit, for accurate results.
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#if PHYSFS_DARWIN
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/* 
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   337
 * This function is only for OSX. The problem is that Apple's applications
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   338
 * can actually be directory structures with the actual executable nested
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 * several levels down. PhysFS computes the base directory from the Unix
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 * executable, but this may not be the correct directory. Apple tries to
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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 * hide everything from the user, so from Finder, the user never sees the
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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   342
 * Unix executable, and the directory package (bundle) is considered the
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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   343
 * "executable". This means that the correct base directory is at the 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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 * level where the directory structure starts.
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 * A typical bundle seems to look like this:
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 * MyApp.app/    <-- top level...this is what the user sees in Finder 
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   347
 *   Contents/
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   348
 *     MacOS/
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   349
 *       MyApp   <-- the actual executable
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 *       
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   351
 * Since anything below the app folder is considered hidden, most 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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   352
 * application files need to be at the top level if you intend to
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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   353
 * write portable software. Thus if the application resides in:
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   354
 * /Applications/MyProgram
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   355
 * and the executable is the bundle MyApp.app,
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   356
 * PhysFS computes the following as the base directory:
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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   357
 * /Applications/MyProgram/MyApp.app/Contents/MacOS/
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   358
 * We need to strip off the MyApp.app/Contents/MacOS/
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   359
 * 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   360
 * However, there are corner cases. OSX applications can be traditional
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   361
 * Unix executables without the bundle. Also, it is not entirely clear
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   362
 * to me what kinds of permutations bundle structures can have.
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   363
 * 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   364
 * For now, this is a temporary hack until a better solution 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   365
 * can be made. This function will try to find a "/Contents/MacOS"
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   366
 * inside the path. If it succeeds, then the path will be truncated
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   367
 * to correct the directory. If it is not found, the path will be 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   368
 * left alone and will presume it is a traditional Unix execuatable.
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   369
 * Most programs also include the .app extention in the top level
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   370
 * folder, but it doesn't seem to be a requirement (Acrobat doesn't 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   371
 * have it). MacOS looks like it can also be MacOSClassic. 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   372
 * This function will test for MacOS and hope it captures any
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   373
 * other permutations.
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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   374
 */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   375
static void stripAppleBundle(char *path)
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   376
{
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   377
    char *sub_str = "/contents/macos";
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   378
    char *found_ptr = NULL;
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   379
    char *tempbuf = NULL;
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
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diff changeset
   380
    size_t len = strlen(path) + 1;
520
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diff changeset
   381
    int i;
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
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diff changeset
   382
    
570
b331437b9ec0 Rewrote MacOSX/Darwin CD detection to use IOKit, for accurate results.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   383
    /* !!! FIXME: Can we stack-allocate this? --ryan. */
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
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diff changeset
   384
    tempbuf = (char *) allocator.Malloc(len);
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
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diff changeset
   385
    if (!tempbuf) return;
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   386
    memset(tempbuf, '\0', len);
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
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diff changeset
   387
520
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   388
    /* Unlike other Unix filesystems, HFS is case insensitive
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   389
     * It wouldn be nice to use strcasestr, but it doesn't seem
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   390
     * to be available in the OSX gcc library right now.
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   391
     * So we should make a lower case copy of the path to 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   392
     * compare against 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   393
     */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   394
    for(i=0; i<strlen(path); i++)
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   395
    {
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   396
        /* convert to lower case */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   397
        tempbuf[i] = tolower(path[i]);
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   398
    }
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   399
    /* See if we can find "/contents/macos" in the path */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   400
    found_ptr = strstr(tempbuf, sub_str);
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   401
    if(NULL == found_ptr)
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   402
    {
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   403
        /* It doesn't look like a bundle so we can keep the 
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   404
         * original path. Just return */
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
Ryan C. Gordon <icculus@icculus.org>
parents: 678
diff changeset
   405
        allocator.Free(tempbuf);
520
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   406
        return;
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   407
    }
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   408
    /* We have a bundle, so let's backstep character by character
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   409
     * to erase the extra parts of the path. Quit when we hit
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   410
     * the preceding '/' character.
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   411
     */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   412
    for(i=strlen(path)-strlen(found_ptr)-1; i>=0; i--)
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   413
    {
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   414
        if('/' == path[i])
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   415
        {
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   416
            break;
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   417
        }
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   418
    }
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   419
    /* Safety check */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   420
    if(i<1)
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   421
    {
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   422
        /* This probably shouldn't happen. */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   423
        path[0] = '\0';
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   424
    }
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   425
    else
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   426
    {
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   427
        /* Back up one more to remove trailing '/' and set the '\0' */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   428
        path[i] = '\0';
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   429
    }
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
Ryan C. Gordon <icculus@icculus.org>
parents: 678
diff changeset
   430
    allocator.Free(tempbuf);
520
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   431
    return;
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   432
}
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   433
#endif /* defined __MACH__ && defined __APPLE__ */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   434
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   435
39
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   436
char *__PHYSFS_platformRealPath(const char *path)
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   437
{
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   438
    char resolved_path[MAXPATHLEN];
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   439
    char *retval = NULL;
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   440
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   441
    errno = 0;
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   442
    BAIL_IF_MACRO(!realpath(path, resolved_path), strerror(errno), NULL);
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
Ryan C. Gordon <icculus@icculus.org>
parents: 678
diff changeset
   443
    retval = (char *) allocator.Malloc(strlen(resolved_path) + 1);
39
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   444
    BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   445
    strcpy(retval, resolved_path);
520
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   446
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   447
#if defined(__MACH__) && defined(__APPLE__)
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   448
    stripAppleBundle(retval);
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   449
#endif /* defined __MACH__ && defined __APPLE__ */
a72bbf255074 Added hack for OSX bundles, from Eric Wing.
Ryan C. Gordon <icculus@icculus.org>
parents: 505
diff changeset
   450
    
39
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   451
    return(retval);
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   452
} /* __PHYSFS_platformRealPath */
bc29e1ee7ef6 Lots of bugfixes, enhancements, and corrections due to the work on
Ryan C. Gordon <icculus@icculus.org>
parents: 28
diff changeset
   453
69
546a95cc5591 Updates, corrections and enhancements to get this ported to win32.
Ryan C. Gordon <icculus@icculus.org>
parents: 67
diff changeset
   454
396
15f7ccfdd89f Whoops; the pthread-disabling condition was flipped. Fixed.
Ryan C. Gordon <icculus@icculus.org>
parents: 392
diff changeset
   455
#if (defined PHYSFS_NO_PTHREADS_SUPPORT)
390
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   456
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   457
PHYSFS_uint64 __PHYSFS_platformGetThreadID(void) { return(0x0001); }
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   458
void *__PHYSFS_platformCreateMutex(void) { return((void *) 0x0001); }
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   459
void __PHYSFS_platformDestroyMutex(void *mutex) {}
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   460
int __PHYSFS_platformGrabMutex(void *mutex) { return(1); }
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   461
void __PHYSFS_platformReleaseMutex(void *mutex) {}
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   462
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   463
#else
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   464
757
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   465
typedef struct
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   466
{
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   467
    pthread_mutex_t mutex;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   468
    pthread_t owner;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   469
    PHYSFS_uint32 count;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   470
} PthreadMutex;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   471
452
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   472
/* Just in case; this is a panic value. */
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   473
#if ((!defined SIZEOF_INT) || (SIZEOF_INT <= 0))
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   474
#  define SIZEOF_INT 4
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   475
#endif
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   476
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   477
#if (SIZEOF_INT == 4)
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   478
#  define PHTREAD_TO_UI64(thr) ( (PHYSFS_uint64) ((PHYSFS_uint32) (thr)) )
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   479
#elif (SIZEOF_INT == 2)
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   480
#  define PHTREAD_TO_UI64(thr) ( (PHYSFS_uint64) ((PHYSFS_uint16) (thr)) )
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   481
#elif (SIZEOF_INT == 1)
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   482
#  define PHTREAD_TO_UI64(thr) ( (PHYSFS_uint64) ((PHYSFS_uint8) (thr)) )
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   483
#else
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   484
#  define PHTREAD_TO_UI64(thr) ((PHYSFS_uint64) (thr))
89578e99ba6e Attempt to fix pthread-to-ui64 cast issue.
Ryan C. Gordon <icculus@icculus.org>
parents: 396
diff changeset
   485
#endif
392
bcc8e4dca868 First step towards getting __PHYSFS_platformGetThreadID() to work universally.
Ryan C. Gordon <icculus@icculus.org>
parents: 390
diff changeset
   486
390
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   487
PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   488
{
392
bcc8e4dca868 First step towards getting __PHYSFS_platformGetThreadID() to work universally.
Ryan C. Gordon <icculus@icculus.org>
parents: 390
diff changeset
   489
    return(PHTREAD_TO_UI64(pthread_self()));
390
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   490
} /* __PHYSFS_platformGetThreadID */
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   491
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   492
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   493
void *__PHYSFS_platformCreateMutex(void)
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   494
{
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   495
    int rc;
757
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   496
    PthreadMutex *m = (PthreadMutex *) allocator.Malloc(sizeof (PthreadMutex));
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   497
    BAIL_IF_MACRO(m == NULL, ERR_OUT_OF_MEMORY, NULL);
757
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   498
    rc = pthread_mutex_init(&m->mutex, NULL);
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   499
    if (rc != 0)
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   500
    {
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
Ryan C. Gordon <icculus@icculus.org>
parents: 678
diff changeset
   501
        allocator.Free(m);
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   502
        BAIL_MACRO(strerror(rc), NULL);
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   503
    } /* if */
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   504
757
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   505
    m->count = 0;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   506
    m->owner = (pthread_t) 0xDEADBEEF;
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   507
    return((void *) m);
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   508
} /* __PHYSFS_platformCreateMutex */
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   509
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   510
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   511
void __PHYSFS_platformDestroyMutex(void *mutex)
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   512
{
757
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   513
    PthreadMutex *m = (PthreadMutex *) mutex;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   514
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   515
    /* Destroying a locked mutex is a bug, but we'll try to be helpful. */
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   516
    if ((m->owner == pthread_self()) && (m->count > 0))
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   517
        pthread_mutex_unlock(&m->mutex);
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   518
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   519
    pthread_mutex_destroy(&m->mutex);
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   520
    allocator.Free(m);
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   521
} /* __PHYSFS_platformDestroyMutex */
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   522
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   523
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   524
int __PHYSFS_platformGrabMutex(void *mutex)
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   525
{
757
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   526
    PthreadMutex *m = (PthreadMutex *) mutex;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   527
    pthread_t tid = pthread_self();
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   528
    if (m->owner != tid)
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   529
    {
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   530
        if (pthread_mutex_lock(&m->mutex) != 0)
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   531
            return(0);
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   532
        m->owner = tid;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   533
    } /* if */
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   534
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   535
    m->count++;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   536
    return(1);
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   537
} /* __PHYSFS_platformGrabMutex */
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   538
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   539
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   540
void __PHYSFS_platformReleaseMutex(void *mutex)
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   541
{
757
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   542
    PthreadMutex *m = (PthreadMutex *) mutex;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   543
    if (m->owner == pthread_self())
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   544
    {
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   545
        if (--m->count == 0)
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   546
        {
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   547
            m->owner = (pthread_t) 0xDEADBEEF;
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   548
            pthread_mutex_unlock(&m->mutex);
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   549
        } /* if */
50e6457e78be Made unix mutexes recursive.
Ryan C. Gordon <icculus@icculus.org>
parents: 691
diff changeset
   550
    } /* if */
145
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   551
} /* __PHYSFS_platformReleaseMutex */
d6385584f6c4 First shot at thread-safety.
Ryan C. Gordon <icculus@icculus.org>
parents: 137
diff changeset
   552
390
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   553
#endif /* !PHYSFS_NO_PTHREADS_SUPPORT */
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   554
6649d6caecf2 Stub code for platforms without functional pthreads.
Ryan C. Gordon <icculus@icculus.org>
parents: 381
diff changeset
   555
330
5ca5066cf5ff Removed extra #endif
Ryan C. Gordon <icculus@icculus.org>
parents: 327
diff changeset
   556
#endif /* !defined __BEOS__ && !defined WIN32 */
233
1b74a7df1ca6 Split some of the unix.c code out to posix.c for BeOS to use.
Ryan C. Gordon <icculus@icculus.org>
parents: 225
diff changeset
   557
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   558
/* end of unix.c ... */
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   559