diff options
Diffstat (limited to 'lib/unlocked-io.h')
-rw-r--r-- | lib/unlocked-io.h | 66 |
1 files changed, 54 insertions, 12 deletions
diff --git a/lib/unlocked-io.h b/lib/unlocked-io.h index a7240fb9..36a7a488 100644 --- a/lib/unlocked-io.h +++ b/lib/unlocked-io.h | |||
@@ -1,21 +1,20 @@ | |||
1 | /* Prefer faster, non-thread-safe stdio functions if available. | 1 | /* Prefer faster, non-thread-safe stdio functions if available. |
2 | 2 | ||
3 | Copyright (C) 2001, 2002 Free Software Foundation, Inc. | 3 | Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. |
4 | 4 | ||
5 | This program is free software; you can redistribute it and/or modify it | 5 | This program is free software; you can redistribute it and/or modify |
6 | under the terms of the GNU Library General Public License as published | 6 | it under the terms of the GNU General Public License as published by |
7 | by the Free Software Foundation; either version 2, or (at your option) | 7 | the Free Software Foundation; either version 2, or (at your option) |
8 | any later version. | 8 | any later version. |
9 | 9 | ||
10 | This program is distributed in the hope that it will be useful, | 10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | Library General Public License for more details. | 13 | GNU General Public License for more details. |
14 | 14 | ||
15 | You should have received a copy of the GNU Library General Public | 15 | You should have received a copy of the GNU General Public License along |
16 | License along with this program; if not, write to the Free Software | 16 | with this program; if not, write to the Free Software Foundation, |
17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | 17 | Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
18 | USA. */ | ||
19 | 18 | ||
20 | /* Written by Jim Meyering. */ | 19 | /* Written by Jim Meyering. */ |
21 | 20 | ||
@@ -28,63 +27,106 @@ | |||
28 | 27 | ||
29 | # if USE_UNLOCKED_IO | 28 | # if USE_UNLOCKED_IO |
30 | 29 | ||
31 | /* These are wrappers for functions/macros from GNU libc. | 30 | /* These are wrappers for functions/macros from the GNU C library, and |
31 | from other C libraries supporting POSIX's optional thread-safe functions. | ||
32 | |||
32 | The standard I/O functions are thread-safe. These *_unlocked ones are | 33 | The standard I/O functions are thread-safe. These *_unlocked ones are |
33 | more efficient but not thread-safe. That they're not thread-safe is | 34 | more efficient but not thread-safe. That they're not thread-safe is |
34 | fine since all of the applications in this package are single threaded. */ | 35 | fine since all of the applications in this package are single threaded. |
36 | |||
37 | Also, some code that is shared with the GNU C library may invoke | ||
38 | the *_unlocked functions directly. On hosts that lack those | ||
39 | functions, invoke the non-thread-safe versions instead. */ | ||
40 | |||
41 | # include <stdio.h> | ||
35 | 42 | ||
36 | # if HAVE_DECL_CLEARERR_UNLOCKED | 43 | # if HAVE_DECL_CLEARERR_UNLOCKED |
37 | # undef clearerr | 44 | # undef clearerr |
38 | # define clearerr(x) clearerr_unlocked (x) | 45 | # define clearerr(x) clearerr_unlocked (x) |
46 | # else | ||
47 | # define clearerr_unlocked(x) clearerr (x) | ||
39 | # endif | 48 | # endif |
40 | # if HAVE_DECL_FEOF_UNLOCKED | 49 | # if HAVE_DECL_FEOF_UNLOCKED |
41 | # undef feof | 50 | # undef feof |
42 | # define feof(x) feof_unlocked (x) | 51 | # define feof(x) feof_unlocked (x) |
52 | # else | ||
53 | # define feof_unlocked(x) feof (x) | ||
43 | # endif | 54 | # endif |
44 | # if HAVE_DECL_FERROR_UNLOCKED | 55 | # if HAVE_DECL_FERROR_UNLOCKED |
45 | # undef ferror | 56 | # undef ferror |
46 | # define ferror(x) ferror_unlocked (x) | 57 | # define ferror(x) ferror_unlocked (x) |
58 | # else | ||
59 | # define ferror_unlocked(x) ferror (x) | ||
47 | # endif | 60 | # endif |
48 | # if HAVE_DECL_FFLUSH_UNLOCKED | 61 | # if HAVE_DECL_FFLUSH_UNLOCKED |
49 | # undef fflush | 62 | # undef fflush |
50 | # define fflush(x) fflush_unlocked (x) | 63 | # define fflush(x) fflush_unlocked (x) |
64 | # else | ||
65 | # define fflush_unlocked(x) fflush (x) | ||
51 | # endif | 66 | # endif |
52 | # if HAVE_DECL_FGETS_UNLOCKED | 67 | # if HAVE_DECL_FGETS_UNLOCKED |
53 | # undef fgets | 68 | # undef fgets |
54 | # define fgets(x,y,z) fgets_unlocked (x,y,z) | 69 | # define fgets(x,y,z) fgets_unlocked (x,y,z) |
70 | # else | ||
71 | # define fgets_unlocked(x,y,z) fgets (x,y,z) | ||
55 | # endif | 72 | # endif |
56 | # if HAVE_DECL_FPUTC_UNLOCKED | 73 | # if HAVE_DECL_FPUTC_UNLOCKED |
57 | # undef fputc | 74 | # undef fputc |
58 | # define fputc(x,y) fputc_unlocked (x,y) | 75 | # define fputc(x,y) fputc_unlocked (x,y) |
76 | # else | ||
77 | # define fputc_unlocked(x,y) fputc (x,y) | ||
59 | # endif | 78 | # endif |
60 | # if HAVE_DECL_FPUTS_UNLOCKED | 79 | # if HAVE_DECL_FPUTS_UNLOCKED |
61 | # undef fputs | 80 | # undef fputs |
62 | # define fputs(x,y) fputs_unlocked (x,y) | 81 | # define fputs(x,y) fputs_unlocked (x,y) |
82 | # else | ||
83 | # define fputs_unlocked(x,y) fputs (x,y) | ||
63 | # endif | 84 | # endif |
64 | # if HAVE_DECL_FREAD_UNLOCKED | 85 | # if HAVE_DECL_FREAD_UNLOCKED |
65 | # undef fread | 86 | # undef fread |
66 | # define fread(w,x,y,z) fread_unlocked (w,x,y,z) | 87 | # define fread(w,x,y,z) fread_unlocked (w,x,y,z) |
88 | # else | ||
89 | # define fread_unlocked(w,x,y,z) fread (w,x,y,z) | ||
67 | # endif | 90 | # endif |
68 | # if HAVE_DECL_FWRITE_UNLOCKED | 91 | # if HAVE_DECL_FWRITE_UNLOCKED |
69 | # undef fwrite | 92 | # undef fwrite |
70 | # define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z) | 93 | # define fwrite(w,x,y,z) fwrite_unlocked (w,x,y,z) |
94 | # else | ||
95 | # define fwrite_unlocked(w,x,y,z) fwrite (w,x,y,z) | ||
71 | # endif | 96 | # endif |
72 | # if HAVE_DECL_GETC_UNLOCKED | 97 | # if HAVE_DECL_GETC_UNLOCKED |
73 | # undef getc | 98 | # undef getc |
74 | # define getc(x) getc_unlocked (x) | 99 | # define getc(x) getc_unlocked (x) |
100 | # else | ||
101 | # define getc_unlocked(x) getc (x) | ||
75 | # endif | 102 | # endif |
76 | # if HAVE_DECL_GETCHAR_UNLOCKED | 103 | # if HAVE_DECL_GETCHAR_UNLOCKED |
77 | # undef getchar | 104 | # undef getchar |
78 | # define getchar() getchar_unlocked () | 105 | # define getchar() getchar_unlocked () |
106 | # else | ||
107 | # define getchar_unlocked() getchar () | ||
79 | # endif | 108 | # endif |
80 | # if HAVE_DECL_PUTC_UNLOCKED | 109 | # if HAVE_DECL_PUTC_UNLOCKED |
81 | # undef putc | 110 | # undef putc |
82 | # define putc(x,y) putc_unlocked (x,y) | 111 | # define putc(x,y) putc_unlocked (x,y) |
112 | # else | ||
113 | # define putc_unlocked(x,y) putc (x,y) | ||
83 | # endif | 114 | # endif |
84 | # if HAVE_DECL_PUTCHAR_UNLOCKED | 115 | # if HAVE_DECL_PUTCHAR_UNLOCKED |
85 | # undef putchar | 116 | # undef putchar |
86 | # define putchar(x) putchar_unlocked (x) | 117 | # define putchar(x) putchar_unlocked (x) |
118 | # else | ||
119 | # define putchar_unlocked(x) putchar (x) | ||
87 | # endif | 120 | # endif |
88 | 121 | ||
122 | # undef flockfile | ||
123 | # define flockfile(x) ((void) 0) | ||
124 | |||
125 | # undef ftrylockfile | ||
126 | # define ftrylockfile(x) 0 | ||
127 | |||
128 | # undef funlockfile | ||
129 | # define funlockfile(x) ((void) 0) | ||
130 | |||
89 | # endif /* USE_UNLOCKED_IO */ | 131 | # endif /* USE_UNLOCKED_IO */ |
90 | #endif /* UNLOCKED_IO_H */ | 132 | #endif /* UNLOCKED_IO_H */ |