mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2024-12-24 18:49:43 +01:00
186 lines
4.6 KiB
C++
186 lines
4.6 KiB
C++
/*
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* Haiku platform-dependent 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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#define __PHYSICSFS_INTERNAL__
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#include "physfs_platforms.h"
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#ifdef PHYSFS_PLATFORM_HAIKU
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#include <os/kernel/OS.h>
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#include <os/app/Roster.h>
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#include <os/storage/Volume.h>
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#include <os/storage/VolumeRoster.h>
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#include <os/storage/Directory.h>
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#include <os/storage/Entry.h>
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#include <os/storage/Path.h>
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#include <os/kernel/fs_info.h>
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#include <os/device/scsi.h>
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#include <errno.h>
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#include <unistd.h>
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#include "physfs_internal.h"
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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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void __PHYSFS_platformDeinit(void)
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{
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/* no-op */
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} /* __PHYSFS_platformDeinit */
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static char *getMountPoint(const char *devname, char *buf, size_t bufsize)
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{
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BVolumeRoster mounts;
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BVolume vol;
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mounts.Rewind();
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while (mounts.GetNextVolume(&vol) == B_NO_ERROR)
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{
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fs_info fsinfo;
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fs_stat_dev(vol.Device(), &fsinfo);
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if (strcmp(devname, fsinfo.device_name) == 0)
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{
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BDirectory directory;
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BEntry entry;
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BPath path;
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const char *str;
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if ( (vol.GetRootDirectory(&directory) < B_OK) ||
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(directory.GetEntry(&entry) < B_OK) ||
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(entry.GetPath(&path) < B_OK) ||
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( (str = path.Path()) == NULL) )
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return NULL;
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strncpy(buf, str, bufsize-1);
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buf[bufsize-1] = '\0';
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return buf;
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} /* if */
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} /* while */
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return NULL;
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} /* getMountPoint */
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/*
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* This function is lifted from Simple Directmedia Layer (SDL):
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* https://www.libsdl.org/ ... this is zlib-licensed code, too.
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*/
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static void tryDir(const char *d, PHYSFS_StringCallback callback, void *data)
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{
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BDirectory dir;
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dir.SetTo(d);
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if (dir.InitCheck() != B_NO_ERROR)
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return;
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dir.Rewind();
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BEntry entry;
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while (dir.GetNextEntry(&entry) >= 0)
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{
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BPath path;
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const char *name;
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entry_ref e;
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if (entry.GetPath(&path) != B_NO_ERROR)
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continue;
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name = path.Path();
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if (entry.GetRef(&e) != B_NO_ERROR)
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continue;
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if (entry.IsDirectory())
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{
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if (strcmp(e.name, "floppy") != 0)
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tryDir(name, callback, data);
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continue;
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} /* if */
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const int devfd = open(name, O_RDONLY);
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if (devfd < 0)
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continue;
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device_geometry g;
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const int rc = ioctl(devfd, B_GET_GEOMETRY, &g, sizeof (g));
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close(devfd);
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if (rc < 0)
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continue;
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if (g.device_type != B_CD)
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continue;
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char mntpnt[B_FILE_NAME_LENGTH];
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if (getMountPoint(name, mntpnt, sizeof (mntpnt)))
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callback(data, mntpnt);
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} /* while */
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} /* 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 */
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static team_id getTeamID(void)
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{
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thread_info info;
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thread_id tid = find_thread(NULL);
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get_thread_info(tid, &info);
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return info.team;
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} /* getTeamID */
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char *__PHYSFS_platformCalcBaseDir(const char *argv0)
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{
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image_info info;
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int32 cookie = 0;
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while (get_next_image_info(0, &cookie, &info) == B_OK)
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{
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if (info.type == B_APP_IMAGE)
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break;
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} /* while */
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BEntry entry(info.name, true);
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BPath path;
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status_t rc = entry.GetPath(&path); /* (path) now has binary's path. */
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assert(rc == B_OK);
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rc = path.GetParent(&path); /* chop filename, keep directory. */
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assert(rc == B_OK);
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const char *str = path.Path();
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assert(str != NULL);
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const size_t len = strlen(str);
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char *retval = (char *) allocator.Malloc(len + 2);
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BAIL_IF(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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strcpy(retval, str);
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retval[len] = '/';
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retval[len+1] = '\0';
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return retval;
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} /* __PHYSFS_platformCalcBaseDir */
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char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
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{
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const char *userdir = __PHYSFS_getUserDir();
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const char *append = "config/settings/";
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const size_t len = strlen(userdir) + strlen(append) + strlen(app) + 2;
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char *retval = (char *) allocator.Malloc(len);
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BAIL_IF(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
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snprintf(retval, len, "%s%s%s/", userdir, append, app);
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return retval;
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} /* __PHYSFS_platformCalcPrefDir */
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#endif /* PHYSFS_PLATFORM_HAIKU */
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/* end of physfs_platform_haiku.cpp ... */
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