tools/virtiofsd/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 #define FUSE_SYMVER(x) __asm__(x)
  18 #else
  19 #define FUSE_SYMVER(x)
  20 #endif
  21
  22 #ifndef USE_UCLIBC
  23 #define fuse_mutex_init(mut) pthread_mutex_init(mut, NULL)
  24 #else
  25 /* Is this hack still needed? */
  26 static inline void fuse_mutex_init(pthread_mutex_t *mut)
  27 {
  28     pthread_mutexattr_t attr;
  29     pthread_mutexattr_init(&attr);
  30     pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP);
  31     pthread_mutex_init(mut, &attr);
  32     pthread_mutexattr_destroy(&attr);
  33 }
  34 #endif
  35
  36 #ifdef HAVE_STRUCT_STAT_ST_ATIM
  37 /* Linux */
  38 #define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atim.tv_nsec)
  39 #define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctim.tv_nsec)
  40 #define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtim.tv_nsec)
  41 #define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atim.tv_nsec = (val)
  42 #define ST_CTIM_NSEC_SET(stbuf, val) (stbuf)->st_ctim.tv_nsec = (val)
  43 #define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtim.tv_nsec = (val)
  44 #elif defined(HAVE_STRUCT_STAT_ST_ATIMESPEC)
  45 /* FreeBSD */
  46 #define ST_ATIM_NSEC(stbuf) ((stbuf)->st_atimespec.tv_nsec)
  47 #define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctimespec.tv_nsec)
  48 #define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtimespec.tv_nsec)
  49 #define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atimespec.tv_nsec = (val)
  50 #define ST_CTIM_NSEC_SET(stbuf, val) (stbuf)->st_ctimespec.tv_nsec = (val)
  51 #define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtimespec.tv_nsec = (val)
  52 #else
  53 #define ST_ATIM_NSEC(stbuf) 0
  54 #define ST_CTIM_NSEC(stbuf) 0
  55 #define ST_MTIM_NSEC(stbuf) 0
  56 #define ST_ATIM_NSEC_SET(stbuf, val) do { } while (0)
  57 #define ST_CTIM_NSEC_SET(stbuf, val) do { } while (0)
  58 #define ST_MTIM_NSEC_SET(stbuf, val) do { } while (0)
  59 #endif