aboutsummaryrefslogtreecommitdiff
path: root/newlib/libc/include/sys/reent.h
diff options
context:
space:
mode:
Diffstat (limited to 'newlib/libc/include/sys/reent.h')
-rw-r--r--newlib/libc/include/sys/reent.h483
1 files changed, 0 insertions, 483 deletions
diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h
deleted file mode 100644
index 600e0b1f3..000000000
--- a/newlib/libc/include/sys/reent.h
+++ /dev/null
@@ -1,483 +0,0 @@
-/* This header file provides the reentrancy. */
-
-/* WARNING: All identifiers here must begin with an underscore. This file is
- included by stdio.h and others and we therefore must only use identifiers
- in the namespace allotted to us. */
-
-#ifndef _SYS_REENT_H_
-#ifdef __cplusplus
-extern "C" {
-#endif
-#define _SYS_REENT_H_
-
-#include <_ansi.h>
-#include <sys/_types.h>
-
-#ifndef __Long
-#if __LONG_MAX__ == 2147483647L
-#define __Long long
-typedef unsigned __Long __ULong;
-#elif __INT_MAX__ == 2147483647
-#define __Long int
-typedef unsigned __Long __ULong;
-#endif
-#endif
-
-#ifndef __Long
-#define __Long __int32_t
-typedef __uint32_t __ULong;
-#endif
-
-/*
- * If _REENT_SMALL is defined, we make struct _reent as small as possible,
- * by having nearly everything possible allocated at first use.
- */
-
-struct _glue
-{
- struct _glue *_next;
- int _niobs;
- struct __sFILE *_iobs;
-};
-
-struct _Bigint
-{
- struct _Bigint *_next;
- int _k, _maxwds, _sign, _wds;
- __ULong _x[1];
-};
-
-/* needed by reentrant structure */
-struct __tm
-{
- int __tm_sec;
- int __tm_min;
- int __tm_hour;
- int __tm_mday;
- int __tm_mon;
- int __tm_year;
- int __tm_wday;
- int __tm_yday;
- int __tm_isdst;
-};
-
-/*
- * atexit() support. For _REENT_SMALL, we limit to 32 max.
- */
-
-#define _ATEXIT_SIZE 32 /* must be at least 32 to guarantee ANSI conformance */
-
-#ifndef _REENT_SMALL
-struct _atexit {
- struct _atexit *_next; /* next in list */
- int _ind; /* next index in this table */
- void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */
-};
-#else
-struct _atexit {
- int _ind; /* next index in this table */
- void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */
-};
-#endif
-
-/*
- * Stdio buffers.
- *
- * This and __sFILE are defined here because we need them for struct _reent,
- * but we don't want stdio.h included when stdlib.h is.
- */
-
-struct __sbuf {
- unsigned char *_base;
- int _size;
-};
-
-/*
- * We need fpos_t for the following, but it doesn't have a leading "_",
- * so we use _fpos_t instead.
- */
-
-typedef long _fpos_t; /* XXX must match off_t in <sys/types.h> */
- /* (and must be `long' for now) */
-
-/*
- * Stdio state variables.
- *
- * The following always hold:
- *
- * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
- * _lbfsize is -_bf._size, else _lbfsize is 0
- * if _flags&__SRD, _w is 0
- * if _flags&__SWR, _r is 0
- *
- * This ensures that the getc and putc macros (or inline functions) never
- * try to write or read from a file that is in `read' or `write' mode.
- * (Moreover, they can, and do, automatically switch from read mode to
- * write mode, and back, on "r+" and "w+" files.)
- *
- * _lbfsize is used only to make the inline line-buffered output stream
- * code as compact as possible.
- *
- * _ub, _up, and _ur are used when ungetc() pushes back more characters
- * than fit in the current _bf, or when ungetc() pushes back a character
- * that does not match the previous one in _bf. When this happens,
- * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
- * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
- */
-
-#ifdef _REENT_SMALL
-/*
- * struct __sFILE_fake is the start of a struct __sFILE, with only the
- * minimal fields allocated. In __sinit() we really allocate the 3
- * standard streams, etc., and point away from this fake.
- */
-struct __sFILE_fake {
- unsigned char *_p; /* current position in (some) buffer */
- int _r; /* read space left for getc() */
- int _w; /* write space left for putc() */
- short _flags; /* flags, below; this FILE is free if 0 */
- short _file; /* fileno, if Unix descriptor, else -1 */
- struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
- int _lbfsize; /* 0 or -_bf._size, for inline putc */
-
- struct _reent *_data;
-};
-/* CHECK_INIT() comes from stdio/local.h; be sure to include that. */
-# define _REENT_SMALL_CHECK_INIT(fp) CHECK_INIT(fp)
-#else
-# define _REENT_SMALL_CHECK_INIT(fp) /* nothing */
-#endif
-
-struct __sFILE {
- unsigned char *_p; /* current position in (some) buffer */
- int _r; /* read space left for getc() */
- int _w; /* write space left for putc() */
- short _flags; /* flags, below; this FILE is free if 0 */
- short _file; /* fileno, if Unix descriptor, else -1 */
- struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
- int _lbfsize; /* 0 or -_bf._size, for inline putc */
-
-#ifdef _REENT_SMALL
- struct _reent *_data;
-#endif
-
- /* operations */
- _PTR _cookie; /* cookie passed to io functions */
-
- _READ_WRITE_RETURN_TYPE _EXFUN((*_read),(_PTR _cookie, char *_buf, int _n));
- _READ_WRITE_RETURN_TYPE _EXFUN((*_write),(_PTR _cookie, const char *_buf,
- int _n));
- _fpos_t _EXFUN((*_seek),(_PTR _cookie, _fpos_t _offset, int _whence));
- int _EXFUN((*_close),(_PTR _cookie));
-
- /* separate buffer for long sequences of ungetc() */
- struct __sbuf _ub; /* ungetc buffer */
- unsigned char *_up; /* saved _p when _p is doing ungetc data */
- int _ur; /* saved _r when _r is counting ungetc data */
-
- /* tricks to meet minimum requirements even when malloc() fails */
- unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
- unsigned char _nbuf[1]; /* guarantee a getc() buffer */
-
- /* separate buffer for fgetline() when line crosses buffer boundary */
- struct __sbuf _lb; /* buffer for fgetline() */
-
- /* Unix stdio files get aligned to block boundaries on fseek() */
- int _blksize; /* stat.st_blksize (may be != _bf._size) */
- int _offset; /* current lseek offset */
-
-#ifndef _REENT_SMALL
- struct _reent *_data; /* Here for binary compatibility? Remove? */
-#endif
-};
-
-/*
- * rand48 family support
- *
- * Copyright (c) 1993 Martin Birgmeier
- * All rights reserved.
- *
- * You may redistribute unmodified or modified versions of this source
- * code provided that the above copyright notice and this and the
- * following conditions are retained.
- *
- * This software is provided ``as is'', and comes with no warranties
- * of any kind. I shall in no event be liable for anything that happens
- * to anyone/anything when using this software.
- */
-#define _RAND48_SEED_0 (0x330e)
-#define _RAND48_SEED_1 (0xabcd)
-#define _RAND48_SEED_2 (0x1234)
-#define _RAND48_MULT_0 (0xe66d)
-#define _RAND48_MULT_1 (0xdeec)
-#define _RAND48_MULT_2 (0x0005)
-#define _RAND48_ADD (0x000b)
-struct _rand48 {
- unsigned short _seed[3];
- unsigned short _mult[3];
- unsigned short _add;
-#ifdef _REENT_SMALL
- /* Put this in here as well, for good luck. */
- __extension__ unsigned long long _rand_next;
-#endif
-};
-
-/* How big the some arrays are. */
-#define _REENT_EMERGENCY_SIZE 25
-#define _REENT_ASCTIME_SIZE 26
-
-/*
- * struct _reent
- *
- * This structure contains *all* globals needed by the library.
- * It's raison d'etre is to facilitate threads by making all library routines
- * reentrant. IE: All state information is contained here.
- */
-
-#ifdef _REENT_SMALL
-
-struct _mprec
-{
- /* used by mprec routines */
- struct _Bigint *_result;
- int _result_k;
- struct _Bigint *_p5s;
- struct _Bigint **_freelist;
-};
-
-/* This version of _reent is layed our with "int"s in pairs, to help
- * ports with 16-bit int's but 32-bit pointers, align nicely. */
-struct _reent
-{
-
- /* FILE is a big struct and may change over time. To try to achieve binary
- compatibility with future versions, put stdin,stdout,stderr here.
- These are pointers into member __sf defined below. */
- struct __sFILE *_stdin, *_stdout, *_stderr; /* XXX */
-
- int _errno; /* local copy of errno */
-
- int _inc; /* used by tmpnam */
-
- char *_emergency;
-
- int __sdidinit; /* 1 means stdio has been init'd */
-
- int _current_category; /* used by setlocale */
- _CONST char *_current_locale;
-
- struct _mprec *_mp;
-
- void _EXFUN((*__cleanup),(struct _reent *));
-
- int _gamma_signgam;
-
- /* used by some fp conversion routines */
- int _cvtlen; /* should be size_t */
- char *_cvtbuf;
-
- struct _rand48 *_r48;
- struct __tm *_localtime_buf;
- char *_asctime_buf;
-
- /* signal info */
- void (**(_sig_func))(int);
-
- /* atexit stuff */
- struct _atexit _atexit;
-
- struct _glue __sglue; /* root of glue chain */
- struct __sFILE *__sf; /* file descriptors */
- struct __sFILE_fake __sf_fake; /* fake initial stdin/out/err */
-};
-
-#define _REENT_INIT(var) \
- { &var.__sf_fake, &var.__sf_fake, &var.__sf_fake, 0, 0, _NULL, 0, 0, \
- "C", _NULL, _NULL, 0, 0, _NULL, _NULL, _NULL, _NULL, _NULL, \
- { 0, _NULL }, { _NULL, 0, _NULL }, 0 }
-
-/* Only built the assert() calls if we are built with debugging. */
-#if DEBUG
-#include <assert.h>
-#else
-#define assert(x) ((void)0)
-#endif
-
-/* Generic _REENT check macro. */
-#define _REENT_CHECK(var, what, type, size, init) do { \
- struct _reent *_r = (var); \
- if (_r->what == NULL) { \
- _r->what = (type)malloc(size); \
- assert(_r->what); \
- init; \
- } \
-} while (0)
-
-#define _REENT_CHECK_TM(var) \
- _REENT_CHECK(var, _localtime_buf, struct __tm *, sizeof *((var)->_localtime_buf), \
- /* nothing */)
-
-#define _REENT_CHECK_ASCTIME_BUF(var) \
- _REENT_CHECK(var, _asctime_buf, char *, _REENT_ASCTIME_SIZE, \
- memset((var)->_asctime_buf, 0, _REENT_ASCTIME_SIZE))
-
-/* Handle the dynamically allocated rand48 structure. */
-#define _REENT_INIT_RAND48(var) do { \
- struct _reent *_r = (var); \
- _r->_r48->_seed[0] = _RAND48_SEED_0; \
- _r->_r48->_seed[1] = _RAND48_SEED_1; \
- _r->_r48->_seed[2] = _RAND48_SEED_2; \
- _r->_r48->_mult[0] = _RAND48_MULT_0; \
- _r->_r48->_mult[1] = _RAND48_MULT_1; \
- _r->_r48->_mult[2] = _RAND48_MULT_2; \
- _r->_r48->_add = _RAND48_ADD; \
-} while (0)
-#define _REENT_CHECK_RAND48(var) \
- _REENT_CHECK(var, _r48, struct _rand48 *, sizeof *((var)->_r48), _REENT_INIT_RAND48((var)))
-
-#define _REENT_INIT_MP(var) do { \
- struct _reent *_r = (var); \
- _r->_mp->_result_k = 0; \
- _r->_mp->_result = _r->_mp->_p5s = _NULL; \
- _r->_mp->_freelist = _NULL; \
-} while (0)
-#define _REENT_CHECK_MP(var) \
- _REENT_CHECK(var, _mp, struct _mprec *, sizeof *((var)->_mp), _REENT_INIT_MP(var))
-
-#define _REENT_CHECK_EMERGENCY(var) \
- _REENT_CHECK(var, _emergency, char *, _REENT_EMERGENCY_SIZE, /* nothing */)
-
-#define _REENT_SIGNGAM(ptr) ((ptr)->_gamma_signgam)
-#define _REENT_RAND_NEXT(ptr) ((ptr)->_r48->_rand_next)
-#define _REENT_RAND48_SEED(ptr) ((ptr)->_r48->_seed)
-#define _REENT_RAND48_MULT(ptr) ((ptr)->_r48->_mult)
-#define _REENT_RAND48_ADD(ptr) ((ptr)->_r48->_add)
-#define _REENT_MP_RESULT(ptr) ((ptr)->_mp->_result)
-#define _REENT_MP_RESULT_K(ptr) ((ptr)->_mp->_result_k)
-#define _REENT_MP_P5S(ptr) ((ptr)->_mp->_p5s)
-#define _REENT_MP_FREELIST(ptr) ((ptr)->_mp->_freelist)
-#define _REENT_ASCTIME_BUF(ptr) ((ptr)->_asctime_buf)
-#define _REENT_TM(ptr) ((ptr)->_localtime_buf)
-#define _REENT_EMERGENCY(ptr) ((ptr)->_emergency)
-
-#else /* !_REENT_SMALL */
-
-struct _reent
-{
- int _errno; /* local copy of errno */
-
- /* FILE is a big struct and may change over time. To try to achieve binary
- compatibility with future versions, put stdin,stdout,stderr here.
- These are pointers into member __sf defined below. */
- struct __sFILE *_stdin, *_stdout, *_stderr;
-
- int _inc; /* used by tmpnam */
- char _emergency[_REENT_EMERGENCY_SIZE];
-
- int _current_category; /* used by setlocale */
- _CONST char *_current_locale;
-
- int __sdidinit; /* 1 means stdio has been init'd */
-
- void _EXFUN((*__cleanup),(struct _reent *));
-
- /* used by mprec routines */
- struct _Bigint *_result;
- int _result_k;
- struct _Bigint *_p5s;
- struct _Bigint **_freelist;
-
- /* used by some fp conversion routines */
- int _cvtlen; /* should be size_t */
- char *_cvtbuf;
-
- union
- {
- struct
- {
- unsigned int _unused_rand;
- char * _unused_strtok_last;
- char _asctime_buf[26];
- struct __tm _localtime_buf;
- int _gamma_signgam;
- __extension__ unsigned long long _rand_next;
- struct _rand48 _r48;
- } _reent;
- /* Two next two fields were once used by malloc. They are no longer
- used. They are used to preserve the space used before so as to
- allow addition of new reent fields and keep binary compatibility. */
- struct
- {
-#define _N_LISTS 30
- unsigned char * _nextf[_N_LISTS];
- unsigned int _nmalloc[_N_LISTS];
- } _unused;
- } _new;
-
- /* atexit stuff */
- struct _atexit *_atexit; /* points to head of LIFO stack */
- struct _atexit _atexit0; /* one guaranteed table, required by ANSI */
-
- /* signal info */
- void (**(_sig_func))(int);
-
- /* These are here last so that __sFILE can grow without changing the offsets
- of the above members (on the off chance that future binary compatibility
- would be broken otherwise). */
- struct _glue __sglue; /* root of glue chain */
- struct __sFILE __sf[3]; /* first three file descriptors */
-};
-
-#define _REENT_INIT(var) \
- { 0, &var.__sf[0], &var.__sf[1], &var.__sf[2], 0, "", 0, "C", \
- 0, _NULL, _NULL, 0, _NULL, _NULL, 0, _NULL, { {0, _NULL, "", \
- { 0,0,0,0,0,0,0,0}, 0, 1, \
- {{_RAND48_SEED_0, _RAND48_SEED_1, _RAND48_SEED_2}, \
- {_RAND48_MULT_0, _RAND48_MULT_1, _RAND48_MULT_2}, _RAND48_ADD}} } }
-
-#define _REENT_CHECK_RAND48(ptr) /* nothing */
-#define _REENT_CHECK_MP(ptr) /* nothing */
-#define _REENT_CHECK_TM(ptr) /* nothing */
-#define _REENT_CHECK_ASCTIME_BUF(ptr) /* nothing */
-#define _REENT_CHECK_EMERGENCY(ptr) /* nothing */
-
-#define _REENT_SIGNGAM(ptr) ((ptr)->_new._reent._gamma_signgam)
-#define _REENT_RAND_NEXT(ptr) ((ptr)->_new._reent._rand_next)
-#define _REENT_RAND48_SEED(ptr) ((ptr)->_new._reent._r48._seed)
-#define _REENT_RAND48_MULT(ptr) ((ptr)->_new._reent._r48._mult)
-#define _REENT_RAND48_ADD(ptr) ((ptr)->_new._reent._r48._add)
-#define _REENT_MP_RESULT(ptr) ((ptr)->_result)
-#define _REENT_MP_RESULT_K(ptr) ((ptr)->_result_k)
-#define _REENT_MP_P5S(ptr) ((ptr)->_p5s)
-#define _REENT_MP_FREELIST(ptr) ((ptr)->_freelist)
-#define _REENT_ASCTIME_BUF(ptr) (&(ptr)->_new._reent._asctime_buf)
-#define _REENT_TM(ptr) (&(ptr)->_new._reent._localtime_buf)
-#define _REENT_EMERGENCY(ptr) ((ptr)->_emergency)
-
-#endif /* !_REENT_SMALL */
-
-#define _NULL 0
-
-/*
- * All references to struct _reent are via this pointer.
- * Internally, newlib routines that need to reference it should use _REENT.
- */
-
-#ifndef __ATTRIBUTE_IMPURE_PTR__
-#define __ATTRIBUTE_IMPURE_PTR__
-#endif
-
-extern struct _reent *_impure_ptr __ATTRIBUTE_IMPURE_PTR__;
-
-void _reclaim_reent _PARAMS ((struct _reent *));
-
-/* #define _REENT_ONLY define this to get only reentrant routines */
-
-#ifndef _REENT_ONLY
-#define _REENT _impure_ptr
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-#endif /* _SYS_REENT_H_ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-26 07:09:26 +0000