projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright (C) 2001 Andries Brouwer <aeb@cwi.nl>. |
| 2 | .\" | |
| 3 | .\" Permission is granted to make and distribute verbatim copies of this | |
| 4 | .\" manual provided the copyright notice and this permission notice are | |
| 5 | .\" preserved on all copies. | |
| 6 | .\" | |
| 7 | .\" Permission is granted to copy and distribute modified versions of this | |
| 8 | .\" manual under the conditions for verbatim copying, provided that the | |
| 9 | .\" entire resulting derived work is distributed under the terms of a | |
| 10 | .\" permission notice identical to this one. | |
| 11 | .\" | |
| 12 | .\" Since the Linux kernel and libraries are constantly changing, this | |
| 13 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 14 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 15 | .\" the use of the information contained herein. The author(s) may not | |
| 16 | .\" have taken the same level of care in the production of this manual, | |
| 17 | .\" which is licensed free of charge, as they might when working | |
| 18 | .\" professionally. | |
| 19 | .\" | |
| 20 | .\" Formatted or processed versions of this manual, if unaccompanied by | |
| 21 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 22 | .\" | |
| 23 | .TH UNLOCKED_STDIO 3 2001-10-18 "" "Linux Programmer's Manual" | |
| 24 | .SH NAME | |
| 25 | *_unlocked \- non-locking stdio functions | |
| 26 | .SH SYNOPSIS | |
| 27 | .nf | |
| 28 | .B #include <stdio.h> | |
| 29 | .sp | |
| 30 | .BI "int getc_unlocked(FILE *" stream ); | |
| 31 | .BI "int getchar_unlocked(void);" | |
| 32 | .BI "int putc_unlocked(int " c ", FILE *" stream ); | |
| 33 | .BI "int putchar_unlocked(int " c ); | |
| 34 | .sp | |
| c10859eb | 35 | .BR "#define _BSD_SOURCE" " /* or _SVID_SOURCE or _GNU_SOURCE */" |
| fea681da MK |
36 | .B #include <stdio.h> |
| 37 | .sp | |
| 38 | .BI "void clearerr_unlocked(FILE *" stream ); | |
| 39 | .BI "int feof_unlocked(FILE *" stream ); | |
| 40 | .BI "int ferror_unlocked(FILE *" stream ); | |
| 41 | .BI "int fileno_unlocked(FILE *" stream ); | |
| 42 | .BI "int fflush_unlocked(FILE *" stream ); | |
| 43 | .BI "int fgetc_unlocked(FILE *" stream ); | |
| 44 | .BI "int fputc_unlocked(int " c ", FILE *" stream ); | |
| 45 | .BI "size_t fread_unlocked(void *" ptr ", size_t " size ", size_t " n , | |
| 46 | .BI " FILE *" stream ); | |
| 47 | .BI "size_t fwrite_unlocked(const void *" ptr ", size_t " size ", size_t " n , | |
| 48 | .BI " FILE *" stream ); | |
| 49 | .sp | |
| 50 | .B #define _GNU_SOURCE | |
| 51 | .B #include <stdio.h> | |
| 52 | .sp | |
| 53 | .BI "char *fgets_unlocked(char *" s ", int " n ", FILE *" stream ); | |
| 54 | .BI "int fputs_unlocked(const char *" s ", FILE *" stream ); | |
| 55 | .sp | |
| 56 | .B #define _GNU_SOURCE | |
| 57 | .B #include <wchar.h> | |
| 58 | .sp | |
| 59 | .BI "wint_t getwc_unlocked(FILE *" stream ); | |
| 60 | .BI "wint_t getwchar_unlocked(void);" | |
| 61 | .BI "wint_t fgetwc_unlocked(FILE *" stream ); | |
| 62 | .BI "wint_t fputwc_unlocked(wchar_t " wc ", FILE *" stream ); | |
| 63 | .BI "wint_t putwc_unlocked(wchar_t " wc ", FILE *" stream ); | |
| 64 | .BI "wint_t putwchar_unlocked(wchar_t " wc ); | |
| 65 | .BI "wchar_t *fgetws_unlocked(wchar_t *" ws ", int " n ", FILE *" stream ); | |
| 66 | .BI "int fputws_unlocked(const wchar_t *" ws ", FILE *" stream ); | |
| 67 | .fi | |
| 68 | .SH DESCRIPTION | |
| 69 | Each of these functions has the same behaviour as its counterpart | |
| 70 | without the `_unlocked' suffix, except that they do not use locking | |
| 71 | (they do not set locks themselves, and do not test for the presence | |
| 72 | of locks set by others) and hence are thread-unsafe. | |
| 73 | See | |
| 74 | .BR flockfile (3). | |
| 75 | .SH "CONFORMING TO" | |
| 76 | The four functions \fIgetc_unlocked\fP(), \fIgetchar_unlocked\fP(), | |
| 77 | \fIputc_unlocked\fP(), \fIputchar_unlocked\fP() are in POSIX.1. | |
| 78 | The nonstandard | |
| 4d52e8f8 | 79 | .BR *_unlocked () |
| fea681da MK |
80 | variants occur on a few Unix systems, and are available in recent glibc. |
| 81 | .\" E.g., in HPUX 10.0. In HPUX 10.30 they are called obsolescent, and | |
| 82 | .\" moved to a compatibility library. | |
| 83 | .\" Available in HPUX 10.0: clearerr_unlocked, fclose_unlocked, | |
| 84 | .\" feof_unlocked, ferror_unlocked, fflush_unlocked, fgets_unlocked, | |
| 85 | .\" fgetwc_unlocked, fgetws_unlocked, fileno_unlocked, fputs_unlocked, | |
| 86 | .\" fputwc_unlocked, fputws_unlocked, fread_unlocked, fseek_unlocked, | |
| 87 | .\" ftell_unlocked, fwrite_unlocked, getc_unlocked, getchar_unlocked, | |
| 88 | .\" getw_unlocked, getwc_unlocked, getwchar_unlocked, putc_unlocked, | |
| 89 | .\" putchar_unlocked, puts_unlocked, putws_unlocked, putw_unlocked, | |
| 90 | .\" putwc_unlocked, putwchar_unlocked, rewind_unlocked, setvbuf_unlocked, | |
| 91 | .\" ungetc_unlocked, ungetwc_unlocked. | |
| 92 | They should probably not be used. | |
| 93 | .SH "SEE ALSO" | |
| 50e5322c | 94 | .BR flockfile (3), |
| d142e38f | 95 | .BR stdio (3), |
| a8e7c990 | 96 | .BR feature_test_macros (7) |