libfuse: lib/fuse_misc.h Source File

libfuse

fuse_misc.h
1 /*
2 FUSE: Filesystem in Userspace
3 Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
4
5 This program can be distributed under the terms of the GNU LGPLv2.
6 See the file COPYING.LIB
7 */
8
9 #include <pthread.h>
10
11 /*
12 Versioned symbols cannot be used in some cases because it
13 - confuse the dynamic linker in uClibc
14 - not supported on MacOSX (in MachO binary format)
15 */
16 #if (!defined(__UCLIBC__) && !defined(__APPLE__))
17 # if HAVE_SYMVER_ATTRIBUTE
18 # define FUSE_SYMVER(sym1, sym2) __attribute__ ((symver (sym2)))
19 # else
20 # define FUSE_SYMVER(sym1, sym2) __asm__("\t.symver " sym1 "," sym2);
21 # endif
22 #else
23 #define FUSE_SYMVER(sym1, sym2)
24 #endif
25
26 #ifndef USE_UCLIBC
27 #define fuse_mutex_init(mut) pthread_mutex_init(mut, NULL)
28 #else
29 /* Is this hack still needed? */
30 static inline void fuse_mutex_init(pthread_mutex_t *mut)
31 {
32 pthread_mutexattr_t attr;
33 pthread_mutexattr_init(&attr);
34 pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP);
35 pthread_mutex_init(mut, &attr);
36 pthread_mutexattr_destroy(&attr);
37 }
38 #endif
39
40 #ifdef HAVE_STRUCT_STAT_ST_ATIM
41 /* Linux */
42 #define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atim.tv_nsec)
43 #define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctim.tv_nsec)
44 #define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtim.tv_nsec)
45 #define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atim.tv_nsec = (val)
46 #define ST_CTIM_NSEC_SET(stbuf, val) (stbuf)->st_ctim.tv_nsec = (val)
47 #define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtim.tv_nsec = (val)
48 #elif defined(HAVE_STRUCT_STAT_ST_ATIMESPEC)
49 /* FreeBSD */
50 #define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atimespec.tv_nsec)
51 #define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctimespec.tv_nsec)
52 #define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtimespec.tv_nsec)
53 #define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atimespec.tv_nsec = (val)
54 #define ST_CTIM_NSEC_SET(stbuf, val) (stbuf)->st_ctimespec.tv_nsec = (val)
55 #define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtimespec.tv_nsec = (val)
56 #else
57 #define ST_ATIM_NSEC(stbuf) 0
58 #define ST_CTIM_NSEC(stbuf) 0
59 #define ST_MTIM_NSEC(stbuf) 0
60 #define ST_ATIM_NSEC_SET(stbuf, val) do { } while (0)
61 #define ST_CTIM_NSEC_SET(stbuf, val) do { } while (0)
62 #define ST_MTIM_NSEC_SET(stbuf, val) do { } while (0)
63 #endif