diff options
Diffstat (limited to 'gl/read.c')
-rw-r--r-- | gl/read.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/gl/read.c b/gl/read.c deleted file mode 100644 index 0fe0306f..00000000 --- a/gl/read.c +++ /dev/null | |||
@@ -1,85 +0,0 @@ | |||
1 | /* POSIX compatible read() function. | ||
2 | Copyright (C) 2008-2013 Free Software Foundation, Inc. | ||
3 | Written by Bruno Haible <bruno@clisp.org>, 2011. | ||
4 | |||
5 | This program is free software: you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published by | ||
7 | the Free Software Foundation; either version 3 of the License, or | ||
8 | (at your option) any later version. | ||
9 | |||
10 | This program is distributed in the hope that it will be useful, | ||
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
13 | GNU General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | ||
17 | |||
18 | #include <config.h> | ||
19 | |||
20 | /* Specification. */ | ||
21 | #include <unistd.h> | ||
22 | |||
23 | #if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ | ||
24 | |||
25 | # include <errno.h> | ||
26 | # include <io.h> | ||
27 | |||
28 | # define WIN32_LEAN_AND_MEAN /* avoid including junk */ | ||
29 | # include <windows.h> | ||
30 | |||
31 | # include "msvc-inval.h" | ||
32 | # include "msvc-nothrow.h" | ||
33 | |||
34 | # undef read | ||
35 | |||
36 | # if HAVE_MSVC_INVALID_PARAMETER_HANDLER | ||
37 | static ssize_t | ||
38 | read_nothrow (int fd, void *buf, size_t count) | ||
39 | { | ||
40 | ssize_t result; | ||
41 | |||
42 | TRY_MSVC_INVAL | ||
43 | { | ||
44 | result = read (fd, buf, count); | ||
45 | } | ||
46 | CATCH_MSVC_INVAL | ||
47 | { | ||
48 | result = -1; | ||
49 | errno = EBADF; | ||
50 | } | ||
51 | DONE_MSVC_INVAL; | ||
52 | |||
53 | return result; | ||
54 | } | ||
55 | # else | ||
56 | # define read_nothrow read | ||
57 | # endif | ||
58 | |||
59 | ssize_t | ||
60 | rpl_read (int fd, void *buf, size_t count) | ||
61 | { | ||
62 | ssize_t ret = read_nothrow (fd, buf, count); | ||
63 | |||
64 | # if GNULIB_NONBLOCKING | ||
65 | if (ret < 0 | ||
66 | && GetLastError () == ERROR_NO_DATA) | ||
67 | { | ||
68 | HANDLE h = (HANDLE) _get_osfhandle (fd); | ||
69 | if (GetFileType (h) == FILE_TYPE_PIPE) | ||
70 | { | ||
71 | /* h is a pipe or socket. */ | ||
72 | DWORD state; | ||
73 | if (GetNamedPipeHandleState (h, &state, NULL, NULL, NULL, NULL, 0) | ||
74 | && (state & PIPE_NOWAIT) != 0) | ||
75 | /* h is a pipe in non-blocking mode. | ||
76 | Change errno from EINVAL to EAGAIN. */ | ||
77 | errno = EAGAIN; | ||
78 | } | ||
79 | } | ||
80 | # endif | ||
81 | |||
82 | return ret; | ||
83 | } | ||
84 | |||
85 | #endif | ||