path: root/libfuse-lite/fuse_misc.h (plain)
blob: 5f02165a0fe39c376bdd5ea475424f9ea7b41b4d

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 "config.h"
10	#include <pthread.h>
11
12	#ifndef USE_UCLIBC
13	#define fuse_mutex_init(mut) pthread_mutex_init(mut, NULL)
14	#else
15	static inline void fuse_mutex_init(pthread_mutex_t *mut)
16	{
17	pthread_mutexattr_t attr;
18	pthread_mutexattr_init(&attr);
19	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP);
20	pthread_mutex_init(mut, &attr);
21	pthread_mutexattr_destroy(&attr);
22	}
23	#endif
24
25	typedef struct _pthread_rwlock_t
26	{
27	// struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
28	int __rw_readers; /* Number of readers */
29	// _pthread_descr __rw_writer; /* Identity of writer, or NULL if none */
30	// _pthread_descr __rw_read_waiting; /* Threads waiting for reading */
31	// _pthread_descr __rw_write_waiting; /* Threads waiting for writing */
32	int __rw_kind; /* Reader/Writer preference selection */
33	int __rw_pshared; /* Shared between processes or not */
34	} pthread_rwlock_t;
35
36	typedef struct
37	{
38	int __lockkind;
39	int __pshared;
40	} pthread_rwlockattr_t;
41
42
43	static inline int pthread_rwlock_init (pthread_rwlock_t * __rwlock,
44	pthread_rwlockattr_t *__attr)
45	{
46	return 1;
47	}
48
49	static inline int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock)
50	{
51	return 1;
52	}
53
54
55
56	/* Acquire read lock for RWLOCK. */
57	static inline int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock)
58	{
59	return 1;
60	}
61
62
63	/* Acquire write lock for RWLOCK. */
64	static inline int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock)
65	{
66	return 1;
67	}
68
69
70
71
72	/* Unlock RWLOCK. */
73	static inline int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock)
74	{
75	return 1;
76	}
77
78
79
80	#ifdef HAVE_STRUCT_STAT_ST_ATIM
81	/* Linux */
82	#define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atim.tv_nsec)
83	#define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctim.tv_nsec)
84	#define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtim.tv_nsec)
85	#define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atim.tv_nsec = (val)
86	#define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtim.tv_nsec = (val)
87	#elif defined(HAVE_STRUCT_STAT_ST_ATIMESPEC)
88	/* FreeBSD */
89	#define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atimespec.tv_nsec)
90	#define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctimespec.tv_nsec)
91	#define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtimespec.tv_nsec)
92	#define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atimespec.tv_nsec = (val)
93	#define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtimespec.tv_nsec = (val)
94	#elif defined(HAVE_STRUCT_STAT_ST_ATIMENSEC)
95	#define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atimensec)
96	#define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctimensec)
97	#define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtimensec)
98	#define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atimensec = (val)
99	#define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtimensec = (val)
100	#else
101	#define ST_ATIM_NSEC(stbuf) 0
102	#define ST_CTIM_NSEC(stbuf) 0
103	#define ST_MTIM_NSEC(stbuf) 0
104	#define ST_ATIM_NSEC_SET(stbuf, val) do { } while (0)
105	#define ST_MTIM_NSEC_SET(stbuf, val) do { } while (0)
106	#endif
107