platform_beos.cpp
1
2
3
/*
* BeOS platform-dependent support routines for PhysicsFS.
*
4
* Please see the file LICENSE.txt in the source's root directory.
5
6
7
8
*
* This file written by Ryan C. Gordon.
*/
9
10
11
12
#define __PHYSICSFS_INTERNAL__
#include "physfs_platforms.h"
#ifdef PHYSFS_PLATFORM_BEOS
14
15
16
17
18
19
20
21
22
23
24
25
#ifdef PHYSFS_PLATFORM_HAIKU
#include <os/kernel/OS.h>
#include <os/app/Roster.h>
#include <os/storage/Volume.h>
#include <os/storage/VolumeRoster.h>
#include <os/storage/Directory.h>
#include <os/storage/Entry.h>
#include <os/storage/Path.h>
#include <os/kernel/fs_info.h>
#include <os/device/scsi.h>
#include <os/support/Locker.h>
#else
26
27
28
29
30
31
32
33
34
#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>
35
#include <be/support/Locker.h>
36
#endif
37
38
39
40
41
42
43
44
45
#include <errno.h>
#include <unistd.h>
#include "physfs_internal.h"
int __PHYSFS_platformInit(void)
{
46
return 1; /* always succeed. */
47
48
49
50
51
} /* __PHYSFS_platformInit */
int __PHYSFS_platformDeinit(void)
{
52
return 1; /* always succeed. */
53
54
55
} /* __PHYSFS_platformDeinit */
56
static char *getMountPoint(const char *devname, char *buf, size_t bufsize)
57
58
59
60
61
62
63
64
65
66
67
68
69
70
{
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)
{
BDirectory directory;
BEntry entry;
BPath path;
71
72
73
74
75
76
77
78
79
80
81
const char *str;
if ( (vol.GetRootDirectory(&directory) < B_OK) ||
(directory.GetEntry(&entry) < B_OK) ||
(entry.GetPath(&path) < B_OK) ||
( (str = path.Path()) == NULL) )
return NULL;
strncpy(buf, str, bufsize-1);
buf[bufsize-1] = '\0';
return buf;
82
83
84
} /* if */
} /* while */
85
return NULL;
86
87
88
89
90
} /* getMountPoint */
/*
* This function is lifted from Simple Directmedia Layer (SDL):
91
* http://www.libsdl.org/ ... this is zlib-licensed code, too.
92
*/
93
static void tryDir(const char *d, PHYSFS_StringCallback callback, void *data)
94
95
{
BDirectory dir;
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
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)
119
tryDir(name, callback, data);
120
continue;
121
122
} /* if */
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
if (strcmp(e.name, "raw") != 0) /* ignore partitions. */
continue;
const int devfd = open(name, O_RDONLY);
if (devfd < 0)
continue;
device_geometry g;
const int rc = ioctl(devfd, B_GET_GEOMETRY, &g, sizeof (g));
close(devfd);
if (rc < 0)
continue;
if (g.device_type != B_CD)
continue;
char mntpnt[B_FILE_NAME_LENGTH];
if (getMountPoint(name, mntpnt, sizeof (mntpnt)))
callback(data, mntpnt);
142
143
144
145
} /* while */
} /* tryDir */
146
void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
147
{
148
tryDir("/dev/disk", cb, data);
149
150
151
152
153
154
155
156
} /* __PHYSFS_platformDetectAvailableCDs */
static team_id getTeamID(void)
{
thread_info info;
thread_id tid = find_thread(NULL);
get_thread_info(tid, &info);
157
return info.team;
158
} /* getTeamID */
159
160
161
162
char *__PHYSFS_platformCalcBaseDir(const char *argv0)
{
163
164
165
166
167
168
169
170
171
172
image_info info;
int32 cookie = 0;
while (get_next_image_info(0, &cookie, &info) == B_OK)
{
if (info.type == B_APP_IMAGE)
break;
} /* while */
BEntry entry(info.name, true);
173
BPath path;
174
status_t rc = entry.GetPath(&path); /* (path) now has binary's path. */
175
176
177
178
179
assert(rc == B_OK);
rc = path.GetParent(&path); /* chop filename, keep directory. */
assert(rc == B_OK);
const char *str = path.Path();
assert(str != NULL);
180
char *retval = (char *) allocator.Malloc(strlen(str) + 1);
181
182
BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
strcpy(retval, str);
183
return retval;
184
185
186
} /* __PHYSFS_platformCalcBaseDir */
187
void *__PHYSFS_platformGetThreadID(void)
188
{
189
return (void *) find_thread(NULL);
190
191
192
193
194
} /* __PHYSFS_platformGetThreadID */
void *__PHYSFS_platformCreateMutex(void)
{
195
return new BLocker("PhysicsFS lock", true);
196
197
198
199
200
} /* __PHYSFS_platformCreateMutex */
void __PHYSFS_platformDestroyMutex(void *mutex)
{
201
delete ((BLocker *) mutex);
202
203
204
205
206
} /* __PHYSFS_platformDestroyMutex */
int __PHYSFS_platformGrabMutex(void *mutex)
{
207
return ((BLocker *) mutex)->Lock() ? 1 : 0;
208
209
210
211
212
} /* __PHYSFS_platformGrabMutex */
void __PHYSFS_platformReleaseMutex(void *mutex)
{
213
((BLocker *) mutex)->Unlock();
214
215
} /* __PHYSFS_platformReleaseMutex */
216
217
218
int __PHYSFS_platformSetDefaultAllocator(PHYSFS_Allocator *a)
{
219
return 0; /* just use malloc() and friends. */
220
221
} /* __PHYSFS_platformSetDefaultAllocator */
222
#endif /* PHYSFS_PLATFORM_BEOS */
223
224
/* end of beos.cpp ... */