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Diffstat (limited to 'newlib/libc/include/sys/reent.h')
| -rw-r--r-- | newlib/libc/include/sys/reent.h | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h deleted file mode 100644 index 7606386..0000000 --- a/newlib/libc/include/sys/reent.h +++ /dev/null @@ -1,240 +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 <time.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 - -struct _glue -{ - struct _glue *_next; - int _niobs; - struct __sFILE *_iobs; -}; - -struct _Bigint -{ - struct _Bigint *_next; - int _k, _maxwds, _sign, _wds; - __ULong _x[1]; -}; - -/* - * atexit() support - */ - -#define _ATEXIT_SIZE 32 /* must be at least 32 to guarantee ANSI conformance */ - -struct _atexit { - struct _atexit *_next; /* next in list */ - int _ind; /* next index in this table */ - void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ -}; - -/* - * 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. - */ - -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 */ - - /* operations */ - _PTR _cookie; /* cookie passed to io functions */ - - int _EXFUN((*_read),(_PTR _cookie, char *_buf, int _n)); - int _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 */ - - struct _reent *_data; -}; - -/* - * 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. - */ - -struct _reent -{ - /* local copy of errno */ - int _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[25]; - - 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 * _strtok_last; - char _asctime_buf[26]; - struct tm _localtime_buf; - int _gamma_signgam; - __extension__ unsigned long long _rand_next; - - } _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} } } - -/* - * 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_ */ |