newlib/libc/include/sys/types.h

   1 /* unified sys/types.h:
   2    start with sef's sysvi386 version.
   3    merge go32 version -- a few ifdefs.
   4    h8300hms, h8300xray, and sysvnecv70 disagree on the following types:
   5
   6    typedef int gid_t;
   7    typedef int uid_t;
   8    typedef int dev_t;
   9    typedef int ino_t;
  10    typedef int mode_t;
  11    typedef int caddr_t;
  12
  13    however, these aren't "reasonable" values, the sysvi386 ones make far
  14    more sense, and should work sufficiently well (in particular, h8300
  15    doesn't have a stat, and the necv70 doesn't matter.) -- eichin
  16  */
  17
  18 #ifndef _SYS_TYPES_H
  19 #define _SYS_TYPES_H
  20
  21 #if defined (_WIN32) || defined (__CYGWIN__)
  22 #define __MS_types__
  23 #endif
  24
  25 #ifdef __i386__
  26 #if defined (GO32) || defined (__MSDOS__)
  27 #define __MS_types__
  28 #endif
  29 #endif
  30
  31 # include <stddef.h>
  32 # include <machine/types.h>
  33
  34 /* To ensure the stat struct's layout doesn't change when sizeof(int), etc.
  35    changes, we assume sizeof short and long never change and have all types
  36    used to define struct stat use them and not int where possible.
  37    Where not possible, _ST_INTxx are used.  It would be preferable to not have
  38    such assumptions, but until the extra fluff is necessary, it's avoided.
  39    No 64 bit targets use stat yet.  What to do about them is postponed
  40    until necessary.  */
  41 #ifdef __GNUC__
  42 #define _ST_INT32 __attribute__ ((__mode__ (__SI__)))
  43 #else
  44 #define _ST_INT32
  45 #endif
  46
  47 # ifndef        _POSIX_SOURCE
  48
  49 #  define       physadr         physadr_t
  50 #  define       quad            quad_t
  51
  52 #ifndef _BSDTYPES_DEFINED
  53 /* also defined in mingw/gmon.h and in w32api/winsock[2].h */
  54 typedef unsigned char   u_char;
  55 typedef unsigned short  u_short;
  56 typedef unsigned int    u_int;
  57 typedef unsigned long   u_long;
  58 #define _BSDTYPES_DEFINED
  59 #endif
  60
  61 typedef unsigned short  ushort;         /* System V compatibility */
  62 typedef unsigned int    uint;           /* System V compatibility */
  63 # endif /*!_POSIX_SOURCE */
  64
  65 #ifndef __clock_t_defined
  66 typedef _CLOCK_T_ clock_t;
  67 #define __clock_t_defined
  68 #endif
  69
  70 #ifndef __time_t_defined
  71 typedef _TIME_T_ time_t;
  72 #define __time_t_defined
  73
  74 /* Time Value Specification Structures, P1003.1b-1993, p. 261 */
  75
  76 struct timespec {
  77   time_t  tv_sec;   /* Seconds */
  78   long    tv_nsec;  /* Nanoseconds */
  79 };
  80
  81 struct itimerspec {
  82   struct timespec  it_interval;  /* Timer period */
  83   struct timespec  it_value;     /* Timer expiration */
  84 };
  85 #endif
  86
  87 typedef long    daddr_t;
  88 typedef char *  caddr_t;
  89
  90 #ifdef __MS_types__
  91 typedef unsigned long   ino_t;
  92 #else
  93 #ifdef __sparc__
  94 typedef unsigned long   ino_t;
  95 #else
  96 typedef unsigned short  ino_t;
  97 #endif
  98 #endif
  99
 100 #ifdef __MS_types__
 101 typedef unsigned long vm_offset_t;
 102 typedef unsigned long vm_size_t;
 103
 104 #define __BIT_TYPES_DEFINED__
 105
 106 typedef char int8_t;
 107 typedef unsigned char u_int8_t;
 108 typedef short int16_t;
 109 typedef unsigned short u_int16_t;
 110 typedef int int32_t;
 111 typedef unsigned int u_int32_t;
 112 typedef long long int64_t;
 113 typedef unsigned long long u_int64_t;
 114 typedef int32_t register_t;
 115 #endif /* __MS_types__ */
 116
 117 /*
 118  * All these should be machine specific - right now they are all broken.
 119  * However, for all of Cygnus' embedded targets, we want them to all be
 120  * the same.  Otherwise things like sizeof (struct stat) might depend on
 121  * how the file was compiled (e.g. -mint16 vs -mint32, etc.).
 122  */
 123
 124 #if defined(__rtems__)
 125 /* device numbers are 32-bit major and and 32-bit minor */
 126 typedef unsigned long long dev_t;
 127 #else
 128 typedef short   dev_t;
 129 #endif
 130
 131 typedef long    off_t;
 132
 133 typedef unsigned short  uid_t;
 134 typedef unsigned short  gid_t;
 135 typedef int pid_t;
 136 typedef long key_t;
 137 typedef long ssize_t;
 138
 139 #ifdef __MS_types__
 140 typedef char *  addr_t;
 141 typedef int mode_t;
 142 #else
 143 #if defined (__sparc__) && !defined (__sparc_v9__)
 144 #ifdef __svr4__
 145 typedef unsigned long mode_t;
 146 #else
 147 typedef unsigned short mode_t;
 148 #endif
 149 #else
 150 typedef unsigned int mode_t _ST_INT32;
 151 #endif
 152 #endif /* ! __MS_types__ */
 153
 154 typedef unsigned short nlink_t;
 155
 156 /* We don't define fd_set and friends if we are compiling POSIX
 157    source, or if we have included (or may include as indicated
 158    by __USE_W32_SOCKETS) the W32api winsock[2].h header which
 159    defines Windows versions of them.   Note that a program which
 160    includes the W32api winsock[2].h header must know what it is doing;
 161    it must not call the cygwin32 select function.
 162 */
 163 # if !(defined (_POSIX_SOURCE) || defined (_WINSOCK_H) || defined (__USE_W32_SOCKETS))
 164 #  define _SYS_TYPES_FD_SET
 165 #  define       NBBY    8               /* number of bits in a byte */
 166 /*
 167  * Select uses bit masks of file descriptors in longs.
 168  * These macros manipulate such bit fields (the filesystem macros use chars).
 169  * FD_SETSIZE may be defined by the user, but the default here
 170  * should be >= NOFILE (param.h).
 171  */
 172 #  ifndef       FD_SETSIZE
 173 #       define  FD_SETSIZE      64
 174 #  endif
 175
 176 typedef long    fd_mask;
 177 #  define       NFDBITS (sizeof (fd_mask) * NBBY)       /* bits per mask */
 178 #  ifndef       howmany
 179 #       define  howmany(x,y)    (((x)+((y)-1))/(y))
 180 #  endif
 181
 182 /* We use a macro for fd_set so that including Sockets.h afterwards
 183    can work.  */
 184 typedef struct _types_fd_set {
 185         fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
 186 } _types_fd_set;
 187
 188 #define fd_set _types_fd_set
 189
 190 #  define       FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1L << ((n) % NFDBITS)))
 191 #  define       FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1L << ((n) % NFDBITS)))
 192 #  define       FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1L << ((n) % NFDBITS)))
 193 #  define       FD_ZERO(p)      (__extension__ (void)({ \
 194      size_t __i; \
 195      char *__tmp = (char *)p; \
 196      for (__i = 0; __i < sizeof (*(p)); ++__i) \
 197        *__tmp++ = 0; \
 198 }))
 199
 200 # endif /* !(defined (_POSIX_SOURCE) || defined (_WINSOCK_H) || defined (__USE_W32_SOCKETS)) */
 201
 202 #undef __MS_types__
 203 #undef _ST_INT32
 204
 205 /* The following are actually standard POSIX 1003.1b-1993 threads, mutexes,
 206    condition variables, and keys.  But since RTEMS is currently the only
 207    newlib user of these, the ifdef is just on RTEMS. */
 208
 209 #if defined(__rtems__) || defined(__CYGWIN__)
 210
 211 #ifndef __clockid_t_defined
 212 typedef _CLOCKID_T_ clockid_t;
 213 #define __clockid_t_defined
 214 #endif
 215
 216 #ifndef __timer_t_defined
 217 typedef _TIMER_T_ timer_t;
 218 #define __timer_t_defined
 219 #endif
 220
 221 #ifdef __CYGWIN__
 222 typedef long useconds_t;
 223 #endif
 224
 225 #include <sys/features.h>
 226
 227
 228 /* Cygwin will probably never have full posix compliance due to little things
 229  * like an inability to set the stackaddress. Cygwin is also using void *
 230  * pointers rather than structs to ensure maximum binary compatability with
 231  * previous releases.
 232  * This means that we don't use the types defined here, but rather in
 233  * <cygwin/types.h>
 234  */
 235 #if defined(_POSIX_THREADS) && !defined(__CYGWIN__)
 236
 237 #include <sys/sched.h>
 238
 239 /*
 240  *  2.5 Primitive System Data Types,  P1003.1c/D10, p. 19.
 241  */
 242
 243 typedef __uint32_t pthread_t;            /* identify a thread */
 244
 245 /* P1003.1c/D10, p. 118-119 */
 246 #define PTHREAD_SCOPE_PROCESS 0
 247 #define PTHREAD_SCOPE_SYSTEM  1
 248
 249 /* P1003.1c/D10, p. 111 */
 250 #define PTHREAD_INHERIT_SCHED  1      /* scheduling policy and associated */
 251                                       /*   attributes are inherited from */
 252                                       /*   the calling thread. */
 253 #define PTHREAD_EXPLICIT_SCHED 2      /* set from provided attribute object */
 254
 255 /* P1003.1c/D10, p. 141 */
 256 #define PTHREAD_CREATE_DETACHED 0
 257 #define PTHREAD_CREATE_JOINABLE  1
 258
 259 typedef struct {
 260   int is_initialized;
 261   void *stackaddr;
 262   int stacksize;
 263   int contentionscope;
 264   int inheritsched;
 265   int schedpolicy;
 266   struct sched_param schedparam;
 267
 268   /* P1003.4b/D8, p. 54 adds cputime_clock_allowed attribute.  */
 269 #if defined(_POSIX_THREAD_CPUTIME)
 270   int  cputime_clock_allowed;  /* see time.h */
 271 #endif
 272   int  detachstate;
 273
 274 } pthread_attr_t;
 275
 276 #if defined(_POSIX_THREAD_PROCESS_SHARED)
 277 /* NOTE: P1003.1c/D10, p. 81 defines following values for process_shared.  */
 278
 279 #define PTHREAD_PROCESS_PRIVATE 0 /* visible within only the creating process */
 280 #define PTHREAD_PROCESS_SHARED  1 /* visible too all processes with access to */
 281                                   /*   the memory where the resource is */
 282                                   /*   located */
 283 #endif
 284
 285 #if defined(_POSIX_THREAD_PRIO_PROTECT)
 286 /* Mutexes */
 287
 288 /* Values for blocking protocol. */
 289
 290 #define PTHREAD_PRIO_NONE    0
 291 #define PTHREAD_PRIO_INHERIT 1
 292 #define PTHREAD_PRIO_PROTECT 2
 293 #endif
 294
 295 typedef __uint32_t pthread_mutex_t;      /* identify a mutex */
 296
 297 typedef struct {
 298   int   is_initialized;
 299 #if defined(_POSIX_THREAD_PROCESS_SHARED)
 300   int   process_shared;  /* allow mutex to be shared amongst processes */
 301 #endif
 302 #if defined(_POSIX_THREAD_PRIO_PROTECT)
 303   int   prio_ceiling;
 304   int   protocol;
 305 #endif
 306   int   recursive;
 307 } pthread_mutexattr_t;
 308
 309 /* Condition Variables */
 310
 311 typedef __uint32_t pthread_cond_t;       /* identify a condition variable */
 312
 313 typedef struct {
 314   int   is_initialized;
 315 #if defined(_POSIX_THREAD_PROCESS_SHARED)
 316   int   process_shared;       /* allow this to be shared amongst processes */
 317 #endif
 318 } pthread_condattr_t;         /* a condition attribute object */
 319
 320 /* Keys */
 321
 322 typedef __uint32_t pthread_key_t;        /* thread-specific data keys */
 323
 324 typedef struct {
 325   int   is_initialized;  /* is this structure initialized? */
 326   int   init_executed;   /* has the initialization routine been run? */
 327 } pthread_once_t;       /* dynamic package initialization */
 328 #else
 329 #if defined (__CYGWIN__)
 330 #include <cygwin/types.h>
 331 #endif
 332 #endif /* defined(_POSIX_THREADS) */
 333
 334 #endif  /* defined(__rtems__) */
 335
 336 #endif  /* _SYS_TYPES_H */