63 // Bang the shadow pages if they need to be touched to be mapped.
  64 inline void os::map_stack_shadow_pages(address sp) {
  65 }
  66 
  67 inline void os::dll_unload(void *lib) { ::dlclose(lib); }
  68 
  69 inline const int os::default_file_open_flags() { return 0;}
  70 
  71 inline DIR* os::opendir(const char* dirname) {
  72   assert(dirname != NULL, "just checking");
  73   return ::opendir(dirname);
  74 }
  75 
  76 inline int os::readdir_buf_size(const char *path) {
  77   int size = pathconf(path, _PC_NAME_MAX);
  78   return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
  79 }
  80 
  81 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
  82   assert(dirp != NULL, "just checking");
  83 #if defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
  84   dirent* p;
  85   int status;
  86 
  87   if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
  88     errno = status;
  89     return NULL;
  90   } else
  91     return p;
  92 #else  // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
  93   return ::readdir_r(dirp, dbuf);
  94 #endif // defined(_LP64) || defined(_GNU_SOURCE) || _FILE_OFFSET_BITS==64
  95 }
  96 
  97 inline int os::closedir(DIR *dirp) {
  98   assert(dirp != NULL, "argument is NULL");
  99   return ::closedir(dirp);
 100 }
 101 
 102 //////////////////////////////////////////////////////////////////////////////
 103 ////////////////////////////////////////////////////////////////////////////////
 104 
 105 // macros for restartable system calls
 106 
 107 #define RESTARTABLE(_cmd, _result) do { \
 108   do { \
 109     _result = _cmd; \
 110   } while((_result == OS_ERR) && (errno == EINTR)); \
 111 } while(false)
 112 
 113 #define RESTARTABLE_RETURN_INT(_cmd) do { \
 114   int _result; \

  63 // Bang the shadow pages if they need to be touched to be mapped.
  64 inline void os::map_stack_shadow_pages(address sp) {
  65 }
  66 
  67 inline void os::dll_unload(void *lib) { ::dlclose(lib); }
  68 
  69 inline const int os::default_file_open_flags() { return 0;}
  70 
  71 inline DIR* os::opendir(const char* dirname) {
  72   assert(dirname != NULL, "just checking");
  73   return ::opendir(dirname);
  74 }
  75 
  76 inline int os::readdir_buf_size(const char *path) {
  77   int size = pathconf(path, _PC_NAME_MAX);
  78   return (size < 0 ? MAXPATHLEN : size) + sizeof(dirent) + 1;
  79 }
  80 
  81 inline struct dirent* os::readdir(DIR* dirp, dirent* dbuf) {
  82   assert(dirp != NULL, "just checking");

  83   dirent* p;
  84   int status;
  85 
  86   if((status = ::readdir_r(dirp, dbuf, &p)) != 0) {
  87     errno = status;
  88     return NULL;
  89   } else {
  90     return p;
  91   }


  92 }
  93 
  94 inline int os::closedir(DIR *dirp) {
  95   assert(dirp != NULL, "argument is NULL");
  96   return ::closedir(dirp);
  97 }
  98 
  99 //////////////////////////////////////////////////////////////////////////////
 100 ////////////////////////////////////////////////////////////////////////////////
 101 
 102 // macros for restartable system calls
 103 
 104 #define RESTARTABLE(_cmd, _result) do { \
 105   do { \
 106     _result = _cmd; \
 107   } while((_result == OS_ERR) && (errno == EINTR)); \
 108 } while(false)
 109 
 110 #define RESTARTABLE_RETURN_INT(_cmd) do { \
 111   int _result; \