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688903eb | 1 | /* Copyright (C) 1993-2018 Free Software Foundation, Inc. |
41bdb6e2 | 2 | This file is part of the GNU C Library. |
96aa2d94 | 3 | |
41bdb6e2 AJ |
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. | |
96aa2d94 | 8 | |
41bdb6e2 AJ |
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 | |
40a55d20 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 AJ |
12 | Lesser General Public License for more details. |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. | |
41bdb6e2 AJ |
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. */ | |
96aa2d94 RM |
26 | |
27 | #include "libioP.h" | |
28 | ||
29 | _IO_size_t | |
9d46370c | 30 | _IO_fread (void *buf, _IO_size_t size, _IO_size_t count, _IO_FILE *fp) |
96aa2d94 | 31 | { |
085320f5 | 32 | _IO_size_t bytes_requested = size * count; |
96aa2d94 RM |
33 | _IO_size_t bytes_read; |
34 | CHECK_FILE (fp, 0); | |
35 | if (bytes_requested == 0) | |
36 | return 0; | |
0261d33f | 37 | _IO_acquire_lock (fp); |
d18ea0c5 | 38 | bytes_read = _IO_sgetn (fp, (char *) buf, bytes_requested); |
0261d33f | 39 | _IO_release_lock (fp); |
96aa2d94 RM |
40 | return bytes_requested == bytes_read ? count : bytes_read / size; |
41 | } | |
d18ea0c5 | 42 | libc_hidden_def (_IO_fread) |
ca34d7a7 | 43 | |
96aa2d94 | 44 | weak_alias (_IO_fread, fread) |
66f8fa9b UD |
45 | |
46 | # ifndef _IO_MTSAFE_IO | |
5a6fa4d7 JM |
47 | strong_alias (_IO_fread, __fread_unlocked) |
48 | libc_hidden_def (__fread_unlocked) | |
66f8fa9b UD |
49 | weak_alias (_IO_fread, fread_unlocked) |
50 | # endif |