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 #if defined(__MS_types__) || defined(__rtems__)
  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 #ifndef __CYGWIN__      /* which defines these types in it's own types.h. */
 132 typedef long            off_t;
 133
 134 typedef unsigned short  uid_t;
 135 typedef unsigned short  gid_t;
 136 #endif
 137
 138 typedef int pid_t;
 139 typedef long key_t;
 140 typedef long ssize_t;
 141
 142 #ifdef __MS_types__
 143 typedef char *  addr_t;
 144 typedef int mode_t;
 145 #else
 146 #if defined (__sparc__) && !defined (__sparc_v9__)
 147 #ifdef __svr4__
 148 typedef unsigned long mode_t;
 149 #else
 150 typedef unsigned short mode_t;
 151 #endif
 152 #else
 153 typedef unsigned int mode_t _ST_INT32;
 154 #endif
 155 #endif /* ! __MS_types__ */
 156
 157 typedef unsigned short nlink_t;
 158
 159 /* We don't define fd_set and friends if we are compiling POSIX
 160    source, or if we have included (or may include as indicated
 161    by __USE_W32_SOCKETS) the W32api winsock[2].h header which
 162    defines Windows versions of them.   Note that a program which
 163    includes the W32api winsock[2].h header must know what it is doing;
 164    it must not call the cygwin32 select function.
 165 */
 166 # if !(defined (_POSIX_SOURCE) || defined (_WINSOCK_H) || defined (__USE_W32_SOCKETS))
 167 #  define _SYS_TYPES_FD_SET
 168 #  define       NBBY    8               /* number of bits in a byte */
 169 /*
 170  * Select uses bit masks of file descriptors in longs.
 171  * These macros manipulate such bit fields (the filesystem macros use chars).
 172  * FD_SETSIZE may be defined by the user, but the default here
 173  * should be >= NOFILE (param.h).
 174  */
 175 #  ifndef       FD_SETSIZE
 176 #       define  FD_SETSIZE      64
 177 #  endif
 178
 179 typedef long    fd_mask;
 180 #  define       NFDBITS (sizeof (fd_mask) * NBBY)       /* bits per mask */
 181 #  ifndef       howmany
 182 #       define  howmany(x,y)    (((x)+((y)-1))/(y))
 183 #  endif
 184
 185 /* We use a macro for fd_set so that including Sockets.h afterwards
 186    can work.  */
 187 typedef struct _types_fd_set {
 188         fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
 189 } _types_fd_set;
 190
 191 #define fd_set _types_fd_set
 192
 193 #  define       FD_SET(n, p)    ((p)->fds_bits[(n)/NFDBITS] |= (1L << ((n) % NFDBITS)))
 194 #  define       FD_CLR(n, p)    ((p)->fds_bits[(n)/NFDBITS] &= ~(1L << ((n) % NFDBITS)))
 195 #  define       FD_ISSET(n, p)  ((p)->fds_bits[(n)/NFDBITS] & (1L << ((n) % NFDBITS)))
 196 #  define       FD_ZERO(p)      (__extension__ (void)({ \
 197      size_t __i; \
 198      char *__tmp = (char *)p; \
 199      for (__i = 0; __i < sizeof (*(p)); ++__i) \
 200        *__tmp++ = 0; \
 201 }))
 202
 203 # endif /* !(defined (_POSIX_SOURCE) || defined (_WINSOCK_H) || defined (__USE_W32_SOCKETS)) */
 204
 205 #undef __MS_types__
 206 #undef _ST_INT32
 207
 208 /* The following are actually standard POSIX 1003.1b-1993 threads, mutexes,
 209    condition variables, and keys.  But since RTEMS is currently the only
 210    newlib user of these, the ifdef is just on RTEMS. */
 211
 212 #if defined(__rtems__) || defined(__CYGWIN__)
 213
 214 #ifndef __clockid_t_defined
 215 typedef _CLOCKID_T_ clockid_t;
 216 #define __clockid_t_defined
 217 #endif
 218
 219 #ifndef __timer_t_defined
 220 typedef _TIMER_T_ timer_t;
 221 #define __timer_t_defined
 222 #endif
 223
 224 #if defined(__CYGWIN__) || defined(__rtems__)
 225 typedef long useconds_t;
 226 #endif
 227
 228 #include <sys/features.h>
 229
 230
 231 /* Cygwin will probably never have full posix compliance due to little things
 232  * like an inability to set the stackaddress. Cygwin is also using void *
 233  * pointers rather than structs to ensure maximum binary compatability with
 234  * previous releases.
 235  * This means that we don't use the types defined here, but rather in
 236  * <cygwin/types.h>
 237  */
 238 #if defined(_POSIX_THREADS) && !defined(__CYGWIN__)
 239
 240 #include <sys/sched.h>
 241
 242 /*
 243  *  2.5 Primitive System Data Types,  P1003.1c/D10, p. 19.
 244  */
 245
 246 typedef __uint32_t pthread_t;            /* identify a thread */
 247
 248 /* P1003.1c/D10, p. 118-119 */
 249 #define PTHREAD_SCOPE_PROCESS 0
 250 #define PTHREAD_SCOPE_SYSTEM  1
 251
 252 /* P1003.1c/D10, p. 111 */
 253 #define PTHREAD_INHERIT_SCHED  1      /* scheduling policy and associated */
 254                                       /*   attributes are inherited from */
 255                                       /*   the calling thread. */
 256 #define PTHREAD_EXPLICIT_SCHED 2      /* set from provided attribute object */
 257
 258 /* P1003.1c/D10, p. 141 */
 259 #define PTHREAD_CREATE_DETACHED 0
 260 #define PTHREAD_CREATE_JOINABLE  1
 261
 262 typedef struct {
 263   int is_initialized;
 264   void *stackaddr;
 265   int stacksize;
 266   int contentionscope;
 267   int inheritsched;
 268   int schedpolicy;
 269   struct sched_param schedparam;
 270
 271   /* P1003.4b/D8, p. 54 adds cputime_clock_allowed attribute.  */
 272 #if defined(_POSIX_THREAD_CPUTIME)
 273   int  cputime_clock_allowed;  /* see time.h */
 274 #endif
 275   int  detachstate;
 276
 277 } pthread_attr_t;
 278
 279 #if defined(_POSIX_THREAD_PROCESS_SHARED)
 280 /* NOTE: P1003.1c/D10, p. 81 defines following values for process_shared.  */
 281
 282 #define PTHREAD_PROCESS_PRIVATE 0 /* visible within only the creating process */
 283 #define PTHREAD_PROCESS_SHARED  1 /* visible too all processes with access to */
 284                                   /*   the memory where the resource is */
 285                                   /*   located */
 286 #endif
 287
 288 #if defined(_POSIX_THREAD_PRIO_PROTECT)
 289 /* Mutexes */
 290
 291 /* Values for blocking protocol. */
 292
 293 #define PTHREAD_PRIO_NONE    0
 294 #define PTHREAD_PRIO_INHERIT 1
 295 #define PTHREAD_PRIO_PROTECT 2
 296 #endif
 297
 298 typedef __uint32_t pthread_mutex_t;      /* identify a mutex */
 299
 300 typedef struct {
 301   int   is_initialized;
 302 #if defined(_POSIX_THREAD_PROCESS_SHARED)
 303   int   process_shared;  /* allow mutex to be shared amongst processes */
 304 #endif
 305 #if defined(_POSIX_THREAD_PRIO_PROTECT)
 306   int   prio_ceiling;
 307   int   protocol;
 308 #endif
 309   int   recursive;
 310 } pthread_mutexattr_t;
 311
 312 /* Condition Variables */
 313
 314 typedef __uint32_t pthread_cond_t;       /* identify a condition variable */
 315
 316 typedef struct {
 317   int   is_initialized;
 318 #if defined(_POSIX_THREAD_PROCESS_SHARED)
 319   int   process_shared;       /* allow this to be shared amongst processes */
 320 #endif
 321 } pthread_condattr_t;         /* a condition attribute object */
 322
 323 /* Keys */
 324
 325 typedef __uint32_t pthread_key_t;        /* thread-specific data keys */
 326
 327 typedef struct {
 328   int   is_initialized;  /* is this structure initialized? */
 329   int   init_executed;   /* has the initialization routine been run? */
 330 } pthread_once_t;       /* dynamic package initialization */
 331 #else
 332 #if defined (__CYGWIN__)
 333 #include <cygwin/types.h>
 334 #endif
 335 #endif /* defined(_POSIX_THREADS) */
 336
 337 #endif  /* defined(__rtems__) */
 338
 339 #endif  /* _SYS_TYPES_H */