beos.cpp
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/*
* BeOS platform-dependent support routines for PhysicsFS.
*
* Please see the file LICENSE in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef __BEOS__
#include <be/kernel/OS.h>
#include <be/app/Roster.h>
#include <be/storage/Volume.h>
#include <be/storage/VolumeRoster.h>
#include <be/storage/Directory.h>
#include <be/storage/Entry.h>
#include <be/storage/Path.h>
#include <be/kernel/fs_info.h>
#include <be/device/scsi.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#define __PHYSICSFS_INTERNAL__
#include "physfs_internal.h"
const char *__PHYSFS_platformDirSeparator = "/";
int __PHYSFS_platformInit(void)
{
return(1); /* always succeed. */
} /* __PHYSFS_platformInit */
int __PHYSFS_platformDeinit(void)
{
return(1); /* always succeed. */
} /* __PHYSFS_platformDeinit */
static char *getMountPoint(const char *devname)
{
BVolumeRoster mounts;
BVolume vol;
mounts.Rewind();
while (mounts.GetNextVolume(&vol) == B_NO_ERROR)
{
fs_info fsinfo;
fs_stat_dev(vol.Device(), &fsinfo);
if (strcmp(devname, fsinfo.device_name) == 0)
{
//char buf[B_FILE_NAME_LENGTH];
BDirectory directory;
BEntry entry;
BPath path;
status_t rc;
rc = vol.GetRootDirectory(&directory);
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BAIL_IF_MACRO(rc < B_OK, strerror(rc), NULL);
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rc = directory.GetEntry(&entry);
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BAIL_IF_MACRO(rc < B_OK, strerror(rc), NULL);
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rc = entry.GetPath(&path);
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BAIL_IF_MACRO(rc < B_OK, strerror(rc), NULL);
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const char *str = path.Path();
BAIL_IF_MACRO(str == NULL, ERR_OS_ERROR, NULL); /* ?! */
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char *retval = (char *) allocator.Malloc(strlen(str) + 1);
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BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
strcpy(retval, str);
return(retval);
} /* if */
} /* while */
return(NULL);
} /* getMountPoint */
/*
* This function is lifted from Simple Directmedia Layer (SDL):
* http://www.libsdl.org/
*/
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static void tryDir(const char *d, PHYSFS_StringCallback callback, void *data)
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{
BDirectory dir;
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if (dir.InitCheck() != B_NO_ERROR)
return;
dir.Rewind();
BEntry entry;
while (dir.GetNextEntry(&entry) >= 0)
{
BPath path;
const char *name;
entry_ref e;
if (entry.GetPath(&path) != B_NO_ERROR)
continue;
name = path.Path();
if (entry.GetRef(&e) != B_NO_ERROR)
continue;
if (entry.IsDirectory())
{
if (strcmp(e.name, "floppy") != 0)
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tryDir(name, callback, data);
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} /* if */
else
{
bool add_it = false;
int devfd;
device_geometry g;
if (strcmp(e.name, "raw") == 0) /* ignore partitions. */
{
int devfd = open(name, O_RDONLY);
if (devfd >= 0)
{
if (ioctl(devfd, B_GET_GEOMETRY, &g, sizeof(g)) >= 0)
{
if (g.device_type == B_CD)
{
char *mntpnt = getMountPoint(name);
if (mntpnt != NULL)
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{
callback(data, mntpnt);
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allocator.Free(mntpnt); /* !!! FIXME: lose this malloc! */
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} /* if */
} /* if */
} /* if */
} /* if */
close(devfd);
} /* else */
} /* while */
} /* tryDir */
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void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
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{
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tryDir("/dev/disk", cb, data);
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} /* __PHYSFS_platformDetectAvailableCDs */
static team_id getTeamID(void)
{
thread_info info;
thread_id tid = find_thread(NULL);
get_thread_info(tid, &info);
return(info.team);
} /* getMyTeamID */
char *__PHYSFS_platformCalcBaseDir(const char *argv0)
{
/* in case there isn't a BApplication yet, we'll construct a roster. */
BRoster roster;
app_info info;
status_t rc = roster.GetRunningAppInfo(getTeamID(), &info);
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BAIL_IF_MACRO(rc < B_OK, strerror(rc), NULL);
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BEntry entry(&(info.ref), true);
BPath path;
rc = entry.GetPath(&path); /* (path) now has binary's path. */
assert(rc == B_OK);
rc = path.GetParent(&path); /* chop filename, keep directory. */
assert(rc == B_OK);
const char *str = path.Path();
assert(str != NULL);
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char *retval = (char *) allocator.Malloc(strlen(str) + 1);
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BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
strcpy(retval, str);
return(retval);
} /* __PHYSFS_platformCalcBaseDir */
PHYSFS_uint64 __PHYSFS_platformGetThreadID(void)
{
return((PHYSFS_uint64) find_thread(NULL));
} /* __PHYSFS_platformGetThreadID */
/* Much like my college days, try to sleep for 10 milliseconds at a time... */
void __PHYSFS_platformTimeslice(void)
{
snooze(10000); /* put thread to sleep for 10 milliseconds. */
} /* __PHYSFS_platformTimeslice */
char *__PHYSFS_platformRealPath(const char *path)
{
char *str = (char *) alloca(strlen(path) + 1);
BAIL_IF_MACRO(str == NULL, ERR_OUT_OF_MEMORY, NULL);
strcpy(str, path);
char *leaf = strrchr(str, '/');
if (leaf != NULL)
*(leaf++) = '\0';
BPath normalized(str, leaf, true); /* force normalization of path. */
const char *resolved_path = normalized.Path();
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BAIL_IF_MACRO(resolved_path == NULL, ERR_NO_SUCH_FILE, NULL);
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char *retval = (char *) allocator.Malloc(strlen(resolved_path) + 1);
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BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
strcpy(retval, resolved_path);
return(retval);
} /* __PHYSFS_platformRealPath */
void *__PHYSFS_platformCreateMutex(void)
{
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sem_id *retval = (sem_id *) allocator.Malloc(sizeof (sem_id));
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sem_id rc;
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
rc = create_sem(1, "PhysicsFS semaphore");
if (rc < B_OK)
{
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allocator.Free(retval);
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BAIL_MACRO(strerror(rc), NULL);
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} // if
*retval = rc;
return(retval);
} /* __PHYSFS_platformCreateMutex */
void __PHYSFS_platformDestroyMutex(void *mutex)
{
delete_sem( *((sem_id *) mutex) );
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allocator.Free(mutex);
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} /* __PHYSFS_platformDestroyMutex */
int __PHYSFS_platformGrabMutex(void *mutex)
{
status_t rc = acquire_sem(*((sem_id *) mutex));
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BAIL_IF_MACRO(rc < B_OK, strerror(rc), 0);
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return(1);
} /* __PHYSFS_platformGrabMutex */
void __PHYSFS_platformReleaseMutex(void *mutex)
{
release_sem(*((sem_id *) mutex));
} /* __PHYSFS_platformReleaseMutex */
#endif
/* end of beos.cpp ... */