Mercurial > ecos

annotate packages/language/c/libc/stdio/current/src/common/fflush.cxx @ 3292:7f8e529b4d82 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
1 //========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
2 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
3 // fflush.cxx
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
4 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
5 // Implementation of C library file flush function as per ANSI 7.9.5.2
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
6 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
7 //========================================================================
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
8 // ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
9 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
10 // This file is part of eCos, the Embedded Configurable Operating System.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 198
diff changeset
12 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
13 // eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
14 // the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
15 // Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
16 // version.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 198
diff changeset
17 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
18 // eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
21 // for more details.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 198
diff changeset
22 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
23 // You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 198
diff changeset
26 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
27 // As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
28 // macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
29 // and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
30 // this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
31 // the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
32 // must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
33 // General Public License v2.
208
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST
jlarmour
parents: 198
diff changeset
34 //
2729
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
35 // This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
36 // on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
37 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text.
jlarmour
parents: 2717
diff changeset
38 // ####ECOSGPLCOPYRIGHTEND####
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
39 //========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
40 //#####DESCRIPTIONBEGIN####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
41 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
42 // Author(s): jlarmour
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
43 // Contributors:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
44 // Date: 2000-04-20
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
45 // Purpose: Provides ISO C fflush() function
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
46 // Description:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
47 // Usage:
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
48 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
49 //####DESCRIPTIONEND####
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
50 //
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
51 //========================================================================
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
52
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
53 // CONFIGURATION
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
54
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
55 #include <pkgconf/libc_stdio.h> // Configuration header
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
56
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
57 // INCLUDES
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
58
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
59 #include <cyg/infra/cyg_type.h> // Common project-wide type definitions
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
60 #include <stddef.h> // NULL and size_t from compiler
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
61 #include <errno.h> // Error codes
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
62 #include <stdio.h> // header for fflush()
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
63 #include <cyg/libc/stdio/stream.hxx>// C library streams
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
64 #include <cyg/libc/stdio/stdiofiles.hxx> // C library files
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
65 #include <cyg/libc/stdio/stdiosupp.hxx> // support for stdio
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
66
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
67 // FUNCTIONS
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
68
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
69 // flush all but one stream
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
70 externC Cyg_ErrNo
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
71 cyg_libc_stdio_flush_all_but( Cyg_StdioStream *not_this_stream )
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
72 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
73 cyg_bool files_flushed[FOPEN_MAX] = { false }; // sets all to 0
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
74 cyg_bool loop_again, looped = false;
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
75 cyg_ucount32 i;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
76 Cyg_ErrNo err=ENOERR;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
77 Cyg_StdioStream *stream;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
78
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
79 do {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
80 loop_again = false;
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
81
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
82 for (i=0; (i<FOPEN_MAX) && !err; i++) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
83 if (files_flushed[i] == false) {
2713
360689a2c1c5 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Ensure the
jlarmour
parents: 1541
diff changeset
84 // Don't let the files table change e.g. by closing the file.
2716
22602f09ebbd Fix trivial thinko in last change
jlarmour
parents: 2713
diff changeset
85 if ( !Cyg_libc_stdio_files::lock() ) {
2713
360689a2c1c5 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Ensure the
jlarmour
parents: 1541
diff changeset
86 err = EINTR;
360689a2c1c5 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Ensure the
jlarmour
parents: 1541
diff changeset
87 break;
360689a2c1c5 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Ensure the
jlarmour
parents: 1541
diff changeset
88 }
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
89 stream = Cyg_libc_stdio_files::get_file_stream(i);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
90
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
91 if ((stream == NULL) || (stream == not_this_stream)) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
92 // if it isn't a valid stream, set its entry in the
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
93 // list of files flushed since we don't want to
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
94 // flush it
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
95 // Ditto if its the one we're meant to miss
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
96
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
97 files_flushed[i] = true;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
98 } // if
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
99 else {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
100 // valid stream
174
38892b97b685 Merge from eCos master repository on 2001-07-28-00:17:32-BST
jlarmour
parents: 171
diff changeset
101 #ifdef CYGSEM_LIBC_STDIO_WANT_BUFFERED_IO
171
42f843b391aa Merge from eCos master repository on 2001-07-18-03:13:25-BST
jlarmour
parents: 115
diff changeset
102 // only buffers which we've written to need flushing
174
38892b97b685 Merge from eCos master repository on 2001-07-28-00:17:32-BST
jlarmour
parents: 171
diff changeset
103 if ( !stream->flags.last_buffer_op_was_read)
38892b97b685 Merge from eCos master repository on 2001-07-28-00:17:32-BST
jlarmour
parents: 171
diff changeset
104 #endif
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
105 {
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
106 // we try to flush the first time through so that
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
107 // everything is flushed that can be flushed.
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
108 // The second time through we should just wait
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
109 // in case some other lowerpri thread has locked the
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
110 // stream, otherwise we will spin needlessly and
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
111 // never let the lower pri thread run!
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
112 if ( (looped && stream->lock_me()) ||
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
113 stream->trylock_me() ) {
171
42f843b391aa Merge from eCos master repository on 2001-07-18-03:13:25-BST
jlarmour
parents: 115
diff changeset
114 err = stream->flush_output_unlocked();
42f843b391aa Merge from eCos master repository on 2001-07-18-03:13:25-BST
jlarmour
parents: 115
diff changeset
115 stream->unlock_me();
42f843b391aa Merge from eCos master repository on 2001-07-18-03:13:25-BST
jlarmour
parents: 115
diff changeset
116 files_flushed[i] = true;
42f843b391aa Merge from eCos master repository on 2001-07-18-03:13:25-BST
jlarmour
parents: 115
diff changeset
117 } // if
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
118 else {
171
42f843b391aa Merge from eCos master repository on 2001-07-18-03:13:25-BST
jlarmour
parents: 115
diff changeset
119 loop_again = true;
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
120 looped = true;
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 174
diff changeset
121 }
171
42f843b391aa Merge from eCos master repository on 2001-07-18-03:13:25-BST
jlarmour
parents: 115
diff changeset
122 }
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
123 } // else
2713
360689a2c1c5 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Ensure the
jlarmour
parents: 1541
diff changeset
124 // We can unlock and relock every loop as we only care
360689a2c1c5 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Ensure the
jlarmour
parents: 1541
diff changeset
125 // about flushing streams that were open prior to this
360689a2c1c5 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Ensure the
jlarmour
parents: 1541
diff changeset
126 // call. Any new streams can be ignored.
2717
c301264acb03 * src/common/fflush.cxx (cyg_libc_stdio_flush_all_but): Fix silly
jlarmour
parents: 2716
diff changeset
127 Cyg_libc_stdio_files::unlock();
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
128 } // if
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
129 } // for
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
130 } // do
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
131 while(loop_again && !err);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
132
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
133 return err;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
134 } // cyg_libc_stdio_flush_all_but()
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
135
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
136 externC int
1541
871b38a618f4 * src/input/vfscanf.cxx (vfscanf): Silence warning.
jlarmour
parents: 210
diff changeset
137 fflush( FILE *stream ) __THROW
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
138 {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
139 Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
140 Cyg_ErrNo err;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
141
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
142 if (stream == NULL) { // tells us to flush ALL streams
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
143 err = cyg_libc_stdio_flush_all_but(NULL);
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
144 } // if
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
145 else {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
146 err = real_stream->flush_output();
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
147 } // else
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
148
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
149 if (err) {
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
150 errno = err;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
151 return EOF;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
152 } // if
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
153
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
154 return 0;
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
155
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
156 } // fflush()
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
157
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
158 // EOF fflush.cxx