/* * 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 #endif #ifdef __BEOS__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define __PHYSICSFS_INTERNAL__ #include "physfs_internal.h" const char *__PHYSFS_platformDirSeparator = "/"; #define get_error_str(x) strerror(x) int __PHYSFS_platformInit(void) { return(1); /* always succeed. */ } /* __PHYSFS_platformInit */ int __PHYSFS_platformDeinit(void) { return(1); /* always succeed. */ } /* __PHYSFS_platformDeinit */ /* caller needs to malloc() mntpnt, and expect us to free() it. */ static void addDisc(char *mntpnt, char ***discs, int *disccount) { char **tmp = (char **) realloc(*discs, sizeof (char *) * (*disccount + 1)); if (tmp) { tmp[*disccount - 1] = mntpnt; *discs = tmp; (*disccount)++; } /* if */ } /* addDisc */ 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); BAIL_IF_MACRO(rc < B_OK, get_error_str(rc), NULL); rc = directory.GetEntry(&entry); BAIL_IF_MACRO(rc < B_OK, get_error_str(rc), NULL); rc = entry.GetPath(&path); BAIL_IF_MACRO(rc < B_OK, get_error_str(rc), NULL); const char *str = path.Path(); BAIL_IF_MACRO(str == NULL, ERR_OS_ERROR, NULL); /* ?! */ char *retval = (char *) malloc(strlen(str) + 1); 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/ */ static void tryDir(const char *dirname, char ***discs, int *disccount) { BDirectory dir; dir.SetTo(dirname); 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) tryDir(name, discs, disccount); } /* 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) addDisc(mntpnt, discs, disccount); } /* if */ } /* if */ } /* if */ } /* if */ close(devfd); } /* else */ } /* while */ } /* tryDir */ char **__PHYSFS_platformDetectAvailableCDs(void) { char **retval = (char **) malloc(sizeof (char *)); int cd_count = 1; /* We count the NULL entry. */ BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL); tryDir("/dev/disk", &retval, &cd_count); retval[cd_count - 1] = NULL; return(retval); } /* __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); BAIL_IF_MACRO(rc < B_OK, get_error_str(rc), NULL); 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); char *retval = (char *) malloc(strlen(str) + 1); 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(); BAIL_IF_MACRO(resolved_path == NULL, ERR_FILE_NOT_FOUND, NULL); char *retval = (char *) malloc(strlen(resolved_path) + 1); BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL); strcpy(retval, resolved_path); return(retval); } /* __PHYSFS_platformRealPath */ void *__PHYSFS_platformCreateMutex(void) { sem_id *retval = (sem_id *) malloc(sizeof (sem_id)); sem_id rc; BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL); rc = create_sem(1, "PhysicsFS semaphore"); if (rc < B_OK) { free(retval); BAIL_MACRO(get_error_str(rc), NULL); } // if *retval = rc; return(retval); } /* __PHYSFS_platformCreateMutex */ void __PHYSFS_platformDestroyMutex(void *mutex) { delete_sem( *((sem_id *) mutex) ); free(mutex); } /* __PHYSFS_platformDestroyMutex */ int __PHYSFS_platformGrabMutex(void *mutex) { status_t rc = acquire_sem(*((sem_id *) mutex)); BAIL_IF_MACRO(rc < B_OK, get_error_str(rc), 0); return(1); } /* __PHYSFS_platformGrabMutex */ void __PHYSFS_platformReleaseMutex(void *mutex) { release_sem(*((sem_id *) mutex)); } /* __PHYSFS_platformReleaseMutex */ #endif /* end of beos.cpp ... */