misc/libphysfs/platform_posix.c
author koda
Fri, 03 Jan 2014 17:14:19 +0100
changeset 9933 792ce11d1927
parent 8524 a65e9bcf0a03
child 10017 de822cd3df3a
permissions -rw-r--r--
have revinfo also try to pick up git hashes
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/*
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 * Posix-esque 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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/* !!! FIXME: check for EINTR? */
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_platforms.h"
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#ifdef PHYSFS_PLATFORM_POSIX
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#include <unistd.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <pwd.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#if ((!defined PHYSFS_NO_THREAD_SUPPORT) && (!defined PHYSFS_PLATFORM_BEOS))
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#include <pthread.h>
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#endif
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#include "physfs_internal.h"
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static PHYSFS_ErrorCode errcodeFromErrnoError(const int err)
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{
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    switch (err)
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    {
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        case 0: return PHYSFS_ERR_OK;
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        case EACCES: return PHYSFS_ERR_PERMISSION;
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        case EPERM: return PHYSFS_ERR_PERMISSION;
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        case EDQUOT: return PHYSFS_ERR_NO_SPACE;
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        case EIO: return PHYSFS_ERR_IO;
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        case ELOOP: return PHYSFS_ERR_SYMLINK_LOOP;
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        case EMLINK: return PHYSFS_ERR_NO_SPACE;
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        case ENAMETOOLONG: return PHYSFS_ERR_BAD_FILENAME;
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        case ENOENT: return PHYSFS_ERR_NO_SUCH_PATH;
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        case ENOSPC: return PHYSFS_ERR_NO_SPACE;
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        case ENOTDIR: return PHYSFS_ERR_NO_SUCH_PATH;
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        case EISDIR: return PHYSFS_ERR_NOT_A_FILE;
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        case EROFS: return PHYSFS_ERR_READ_ONLY;
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        case ETXTBSY: return PHYSFS_ERR_BUSY;
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        case EBUSY: return PHYSFS_ERR_BUSY;
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        case ENOMEM: return PHYSFS_ERR_OUT_OF_MEMORY;
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        case ENOTEMPTY: return PHYSFS_ERR_DIR_NOT_EMPTY;
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        default: return PHYSFS_ERR_OS_ERROR;
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    } /* switch */
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} /* errcodeFromErrnoError */
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static inline PHYSFS_ErrorCode errcodeFromErrno(void)
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{
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    return errcodeFromErrnoError(errno);
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} /* errcodeFromErrno */
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static char *getUserDirByUID(void)
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{
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    uid_t uid = getuid();
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    struct passwd *pw;
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    char *retval = NULL;
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    pw = getpwuid(uid);
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    if ((pw != NULL) && (pw->pw_dir != NULL) && (*pw->pw_dir != '\0'))
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    {
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        const size_t dlen = strlen(pw->pw_dir);
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        const size_t add_dirsep = (pw->pw_dir[dlen-1] != '/') ? 1 : 0;
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        retval = (char *) allocator.Malloc(dlen + 1 + add_dirsep);
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        if (retval != NULL)
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        {
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            strcpy(retval, pw->pw_dir);
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            if (add_dirsep)
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            {
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                retval[dlen] = '/';
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                retval[dlen+1] = '\0';
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            } /* if */
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        } /* if */
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    } /* if */
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    return retval;
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} /* getUserDirByUID */
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char *__PHYSFS_platformCalcUserDir(void)
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{
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    char *retval = NULL;
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    char *envr = getenv("HOME");
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    /* if the environment variable was set, make sure it's really a dir. */
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    if (envr != NULL)
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    {
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        struct stat statbuf;
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        if ((stat(envr, &statbuf) != -1) && (S_ISDIR(statbuf.st_mode)))
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        {
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            const size_t envrlen = strlen(envr);
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            const size_t add_dirsep = (envr[envrlen-1] != '/') ? 1 : 0;
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            retval = allocator.Malloc(envrlen + 1 + add_dirsep);
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            if (retval)
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            {
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                strcpy(retval, envr);
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                if (add_dirsep)
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                {
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                    retval[envrlen] = '/';
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                    retval[envrlen+1] = '\0';
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                } /* if */
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            } /* if */
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        } /* if */
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    } /* if */
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    if (retval == NULL)
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        retval = getUserDirByUID();
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    return retval;
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} /* __PHYSFS_platformCalcUserDir */
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void __PHYSFS_platformEnumerateFiles(const char *dirname,
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                                     int omitSymLinks,
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                                     PHYSFS_EnumFilesCallback callback,
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                                     const char *origdir,
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                                     void *callbackdata)
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{
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    DIR *dir;
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    struct dirent *ent;
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    int bufsize = 0;
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    char *buf = NULL;
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    int dlen = 0;
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    if (omitSymLinks)  /* !!! FIXME: this malloc sucks. */
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    {
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        dlen = strlen(dirname);
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        bufsize = dlen + 256;
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        buf = (char *) allocator.Malloc(bufsize);
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        if (buf == NULL)
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            return;
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        strcpy(buf, dirname);
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        if (buf[dlen - 1] != '/')
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        {
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            buf[dlen++] = '/';
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            buf[dlen] = '\0';
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        } /* if */
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    } /* if */
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    errno = 0;
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    dir = opendir(dirname);
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    if (dir == NULL)
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    {
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        allocator.Free(buf);
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        return;
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    } /* if */
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    while ((ent = readdir(dir)) != NULL)
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    {
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        if (strcmp(ent->d_name, ".") == 0)
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            continue;
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        if (strcmp(ent->d_name, "..") == 0)
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            continue;
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        if (omitSymLinks)
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        {
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            PHYSFS_Stat statbuf;
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            int exists = 0;
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            char *p;
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            int len = strlen(ent->d_name) + dlen + 1;
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            if (len > bufsize)
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            {
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                p = (char *) allocator.Realloc(buf, len);
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                if (p == NULL)
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                    continue;
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                buf = p;
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                bufsize = len;
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            } /* if */
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            strcpy(buf + dlen, ent->d_name);
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            if (!__PHYSFS_platformStat(buf, &exists, &statbuf))
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                continue;
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            else if (!exists)
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                continue;  /* probably can't happen, but just in case. */
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            else if (statbuf.filetype == PHYSFS_FILETYPE_SYMLINK)
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                continue;
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        } /* if */
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        callback(callbackdata, origdir, ent->d_name);
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parents:
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   193
    } /* while */
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parents:
diff changeset
   194
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parents:
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   195
    allocator.Free(buf);
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parents:
diff changeset
   196
    closedir(dir);
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parents:
diff changeset
   197
} /* __PHYSFS_platformEnumerateFiles */
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parents:
diff changeset
   198
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parents:
diff changeset
   199
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parents:
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   200
int __PHYSFS_platformMkDir(const char *path)
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parents:
diff changeset
   201
{
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   202
    const int rc = mkdir(path, S_IRWXU);
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   203
    BAIL_IF_MACRO(rc == -1, errcodeFromErrno(), 0);
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parents:
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   204
    return 1;
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parents:
diff changeset
   205
} /* __PHYSFS_platformMkDir */
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parents:
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   206
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parents:
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   207
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   208
static void *doOpen(const char *filename, int mode)
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parents:
diff changeset
   209
{
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   210
    const int appending = (mode & O_APPEND);
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parents:
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   211
    int fd;
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parents:
diff changeset
   212
    int *retval;
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parents:
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   213
    errno = 0;
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parents:
diff changeset
   214
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parents:
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   215
    /* O_APPEND doesn't actually behave as we'd like. */
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parents:
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   216
    mode &= ~O_APPEND;
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parents:
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   217
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   218
    fd = open(filename, mode, S_IRUSR | S_IWUSR);
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parents:
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   219
    BAIL_IF_MACRO(fd < 0, errcodeFromErrno(), NULL);
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parents:
diff changeset
   220
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   221
    if (appending)
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   222
    {
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parents:
diff changeset
   223
        if (lseek(fd, 0, SEEK_END) < 0)
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parents:
diff changeset
   224
        {
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parents:
diff changeset
   225
            const int err = errno;
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parents:
diff changeset
   226
            close(fd);
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parents:
diff changeset
   227
            BAIL_MACRO(errcodeFromErrnoError(err), NULL);
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parents:
diff changeset
   228
        } /* if */
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parents:
diff changeset
   229
    } /* if */
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parents:
diff changeset
   230
13e2037ebc79 Try using PhysicsFS.
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   231
    retval = (int *) allocator.Malloc(sizeof (int));
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parents:
diff changeset
   232
    if (!retval)
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parents:
diff changeset
   233
    {
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parents:
diff changeset
   234
        close(fd);
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parents:
diff changeset
   235
        BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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parents:
diff changeset
   236
    } /* if */
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parents:
diff changeset
   237
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   238
    *retval = fd;
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parents:
diff changeset
   239
    return ((void *) retval);
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parents:
diff changeset
   240
} /* doOpen */
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parents:
diff changeset
   241
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   242
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   243
void *__PHYSFS_platformOpenRead(const char *filename)
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parents:
diff changeset
   244
{
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diff changeset
   245
    return doOpen(filename, O_RDONLY);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   246
} /* __PHYSFS_platformOpenRead */
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parents:
diff changeset
   247
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   248
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   249
void *__PHYSFS_platformOpenWrite(const char *filename)
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parents:
diff changeset
   250
{
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parents:
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   251
    return doOpen(filename, O_WRONLY | O_CREAT | O_TRUNC);
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parents:
diff changeset
   252
} /* __PHYSFS_platformOpenWrite */
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parents:
diff changeset
   253
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   254
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   255
void *__PHYSFS_platformOpenAppend(const char *filename)
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parents:
diff changeset
   256
{
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parents:
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   257
    return doOpen(filename, O_WRONLY | O_CREAT | O_APPEND);
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parents:
diff changeset
   258
} /* __PHYSFS_platformOpenAppend */
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parents:
diff changeset
   259
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   260
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   261
PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buffer,
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   262
                                    PHYSFS_uint64 len)
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parents:
diff changeset
   263
{
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parents:
diff changeset
   264
    const int fd = *((int *) opaque);
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parents:
diff changeset
   265
    ssize_t rc = 0;
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parents:
diff changeset
   266
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   267
    if (!__PHYSFS_ui64FitsAddressSpace(len))
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   268
        BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
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parents:
diff changeset
   269
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diff changeset
   270
    rc = read(fd, buffer, (size_t) len);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   271
    BAIL_IF_MACRO(rc == -1, errcodeFromErrno(), -1);
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parents:
diff changeset
   272
    assert(rc >= 0);
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parents:
diff changeset
   273
    assert(rc <= len);
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parents:
diff changeset
   274
    return (PHYSFS_sint64) rc;
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parents:
diff changeset
   275
} /* __PHYSFS_platformRead */
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parents:
diff changeset
   276
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   277
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   278
PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   279
                                     PHYSFS_uint64 len)
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parents:
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   280
{
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parents:
diff changeset
   281
    const int fd = *((int *) opaque);
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parents:
diff changeset
   282
    ssize_t rc = 0;
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parents:
diff changeset
   283
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   284
    if (!__PHYSFS_ui64FitsAddressSpace(len))
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   285
        BAIL_MACRO(PHYSFS_ERR_INVALID_ARGUMENT, -1);
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parents:
diff changeset
   286
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   287
    rc = write(fd, (void *) buffer, (size_t) len);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   288
    BAIL_IF_MACRO(rc == -1, errcodeFromErrno(), rc);
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parents:
diff changeset
   289
    assert(rc >= 0);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   290
    assert(rc <= len);
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parents:
diff changeset
   291
    return (PHYSFS_sint64) rc;
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parents:
diff changeset
   292
} /* __PHYSFS_platformWrite */
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parents:
diff changeset
   293
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   294
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   295
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
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parents:
diff changeset
   296
{
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parents:
diff changeset
   297
    const int fd = *((int *) opaque);
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parents:
diff changeset
   298
    const int rc = lseek(fd, (off_t) pos, SEEK_SET);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   299
    BAIL_IF_MACRO(rc == -1, errcodeFromErrno(), 0);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   300
    return 1;
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parents:
diff changeset
   301
} /* __PHYSFS_platformSeek */
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parents:
diff changeset
   302
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   303
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   304
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   305
{
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parents:
diff changeset
   306
    const int fd = *((int *) opaque);
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parents:
diff changeset
   307
    PHYSFS_sint64 retval;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   308
    retval = (PHYSFS_sint64) lseek(fd, 0, SEEK_CUR);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   309
    BAIL_IF_MACRO(retval == -1, errcodeFromErrno(), -1);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   310
    return retval;
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   311
} /* __PHYSFS_platformTell */
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parents:
diff changeset
   312
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   313
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   314
PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   315
{
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   316
    const int fd = *((int *) opaque);
13e2037ebc79 Try using PhysicsFS.
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parents:
diff changeset
   317
    struct stat statbuf;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   318
    BAIL_IF_MACRO(fstat(fd, &statbuf) == -1, errcodeFromErrno(), -1);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   319
    return ((PHYSFS_sint64) statbuf.st_size);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   320
} /* __PHYSFS_platformFileLength */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   321
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   322
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   323
int __PHYSFS_platformFlush(void *opaque)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   324
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   325
    const int fd = *((int *) opaque);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   326
    BAIL_IF_MACRO(fsync(fd) == -1, errcodeFromErrno(), 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   327
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   328
} /* __PHYSFS_platformFlush */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   329
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   330
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   331
void __PHYSFS_platformClose(void *opaque)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   332
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   333
    const int fd = *((int *) opaque);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   334
    (void) close(fd);  /* we don't check this. You should have used flush! */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   335
    allocator.Free(opaque);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   336
} /* __PHYSFS_platformClose */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   337
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   338
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   339
int __PHYSFS_platformDelete(const char *path)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   340
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   341
    BAIL_IF_MACRO(remove(path) == -1, errcodeFromErrno(), 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   342
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   343
} /* __PHYSFS_platformDelete */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   344
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   345
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   346
int __PHYSFS_platformStat(const char *filename, int *exists, PHYSFS_Stat *st)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   347
{
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   348
    struct stat statbuf;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   349
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   350
    if (lstat(filename, &statbuf) == -1)
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   351
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   352
        *exists = (errno != ENOENT);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   353
        BAIL_MACRO(errcodeFromErrno(), 0);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   354
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   355
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   356
    *exists = 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   357
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   358
    if (S_ISREG(statbuf.st_mode))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   359
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   360
        st->filetype = PHYSFS_FILETYPE_REGULAR;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   361
        st->filesize = statbuf.st_size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   362
    } /* if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   363
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   364
    else if(S_ISDIR(statbuf.st_mode))
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   365
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   366
        st->filetype = PHYSFS_FILETYPE_DIRECTORY;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   367
        st->filesize = 0;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   368
    } /* else if */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   369
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   370
    else
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   371
    {
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   372
        st->filetype = PHYSFS_FILETYPE_OTHER;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   373
        st->filesize = statbuf.st_size;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   374
    } /* else */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   375
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   376
    st->modtime = statbuf.st_mtime;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   377
    st->createtime = statbuf.st_ctime;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   378
    st->accesstime = statbuf.st_atime;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   379
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   380
    /* !!! FIXME: maybe we should just report full permissions? */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   381
    st->readonly = access(filename, W_OK);
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   382
    return 1;
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   383
} /* __PHYSFS_platformStat */
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   384
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   385
13e2037ebc79 Try using PhysicsFS.
unc0rr
parents:
diff changeset
   386
#ifndef PHYSFS_PLATFORM_BEOS  /* BeOS has its own code in platform_beos.cpp */
13e2037ebc79 Try using PhysicsFS.
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parents:
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   387
#if (defined PHYSFS_NO_THREAD_SUPPORT)
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void *__PHYSFS_platformGetThreadID(void) { return ((void *) 0x0001); }
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void *__PHYSFS_platformCreateMutex(void) { return ((void *) 0x0001); }
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   391
void __PHYSFS_platformDestroyMutex(void *mutex) {}
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int __PHYSFS_platformGrabMutex(void *mutex) { return 1; }
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void __PHYSFS_platformReleaseMutex(void *mutex) {}
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   394
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#else
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typedef struct
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{
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   399
    pthread_mutex_t mutex;
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    pthread_t owner;
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    PHYSFS_uint32 count;
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} PthreadMutex;
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   403
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void *__PHYSFS_platformGetThreadID(void)
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{
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    return ( (void *) ((size_t) pthread_self()) );
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   408
} /* __PHYSFS_platformGetThreadID */
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   409
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   410
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   411
void *__PHYSFS_platformCreateMutex(void)
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   412
{
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   413
    int rc;
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   414
    PthreadMutex *m = (PthreadMutex *) allocator.Malloc(sizeof (PthreadMutex));
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   415
    BAIL_IF_MACRO(!m, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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   416
    rc = pthread_mutex_init(&m->mutex, NULL);
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   417
    if (rc != 0)
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   418
    {
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   419
        allocator.Free(m);
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   420
        BAIL_MACRO(PHYSFS_ERR_OS_ERROR, NULL);
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   421
    } /* if */
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   422
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   423
    m->count = 0;
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   424
    m->owner = (pthread_t) 0xDEADBEEF;
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   425
    return ((void *) m);
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   426
} /* __PHYSFS_platformCreateMutex */
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   427
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   428
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   429
void __PHYSFS_platformDestroyMutex(void *mutex)
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   430
{
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   431
    PthreadMutex *m = (PthreadMutex *) mutex;
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   432
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   433
    /* Destroying a locked mutex is a bug, but we'll try to be helpful. */
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   434
    if ((m->owner == pthread_self()) && (m->count > 0))
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   435
        pthread_mutex_unlock(&m->mutex);
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   436
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   437
    pthread_mutex_destroy(&m->mutex);
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   438
    allocator.Free(m);
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   439
} /* __PHYSFS_platformDestroyMutex */
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   440
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   441
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   442
int __PHYSFS_platformGrabMutex(void *mutex)
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   443
{
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   444
    PthreadMutex *m = (PthreadMutex *) mutex;
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   445
    pthread_t tid = pthread_self();
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   446
    if (m->owner != tid)
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   447
    {
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   448
        if (pthread_mutex_lock(&m->mutex) != 0)
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   449
            return 0;
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   450
        m->owner = tid;
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   451
    } /* if */
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   452
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   453
    m->count++;
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   454
    return 1;
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   455
} /* __PHYSFS_platformGrabMutex */
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   456
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   457
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   458
void __PHYSFS_platformReleaseMutex(void *mutex)
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   459
{
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   460
    PthreadMutex *m = (PthreadMutex *) mutex;
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   461
    assert(m->owner == pthread_self());  /* catch programming errors. */
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   462
    assert(m->count > 0);  /* catch programming errors. */
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   463
    if (m->owner == pthread_self())
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   464
    {
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   465
        if (--m->count == 0)
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   466
        {
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   467
            m->owner = (pthread_t) 0xDEADBEEF;
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   468
            pthread_mutex_unlock(&m->mutex);
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parents:
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   469
        } /* if */
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parents:
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   470
    } /* if */
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   471
} /* __PHYSFS_platformReleaseMutex */
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   472
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   473
#endif /* !PHYSFS_NO_THREAD_SUPPORT */
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   474
#endif /* !PHYSFS_PLATFORM_BEOS */
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   475
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   476
#endif  /* PHYSFS_PLATFORM_POSIX */
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   477
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   478
/* end of posix.c ... */
13e2037ebc79 Try using PhysicsFS.
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   479