]>
Commit | Line | Data |
---|---|---|
1 | /* Copyright (C) 1993-2021 Free Software Foundation, Inc. | |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
15 | License along with the GNU C Library; if not, see | |
16 | <https://www.gnu.org/licenses/>. | |
17 | ||
18 | As a special exception, if you link the code in this file with | |
19 | files compiled with a GNU compiler to produce an executable, | |
20 | that does not cause the resulting executable to be covered by | |
21 | the GNU Lesser General Public License. This exception does not | |
22 | however invalidate any other reasons why the executable file | |
23 | might be covered by the GNU Lesser General Public License. | |
24 | This exception applies to code released by its copyright holders | |
25 | in files containing the exception. */ | |
26 | ||
27 | #include "libioP.h" | |
28 | ||
29 | size_t | |
30 | _IO_fread (void *buf, size_t size, size_t count, FILE *fp) | |
31 | { | |
32 | size_t bytes_requested = size * count; | |
33 | size_t bytes_read; | |
34 | CHECK_FILE (fp, 0); | |
35 | if (bytes_requested == 0) | |
36 | return 0; | |
37 | _IO_acquire_lock (fp); | |
38 | bytes_read = _IO_sgetn (fp, (char *) buf, bytes_requested); | |
39 | _IO_release_lock (fp); | |
40 | return bytes_requested == bytes_read ? count : bytes_read / size; | |
41 | } | |
42 | libc_hidden_def (_IO_fread) | |
43 | ||
44 | weak_alias (_IO_fread, fread) | |
45 | ||
46 | # ifndef _IO_MTSAFE_IO | |
47 | strong_alias (_IO_fread, __fread_unlocked) | |
48 | libc_hidden_def (__fread_unlocked) | |
49 | weak_alias (_IO_fread, fread_unlocked) | |
50 | # endif |