Mercurial > dovecot > core-2.2

annotate src/lib/istream-failure-at.c @ 22664:fea53c2725c0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
director: Fix director_max_parallel_moves/kicks type Should be uint, not time.
author Timo Sirainen <timo.sirainen@dovecot.fi>
date Thu, 09 Nov 2017 12:24:16 +0200
parents 2e2563132d5f
children cb108f786fb4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
21390
2e2563132d5f Updated copyright notices to include the year 2017.
Stephan Bosch <stephan.bosch@dovecot.fi>
parents: 19552
diff changeset
1 /* Copyright (c) 2015-2017 Dovecot authors, see the included COPYING file */
18865
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
2
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
3 #include "lib.h"
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
4 #include "istream-private.h"
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
5 #include "istream-failure-at.h"
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
6
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
7 struct failure_at_istream {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
8 struct istream_private istream;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
9 char *error_string;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
10 uoff_t failure_offset;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
11 };
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
12
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
13 static void i_stream_failure_at_destroy(struct iostream_private *stream)
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
14 {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
15 struct failure_at_istream *fstream =
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
16 (struct failure_at_istream *)stream;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
17
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
18 i_free(fstream->error_string);
19362
28f088e237d9 lib: fix memory leaks in failure-at streams
Phil Carmody <phil@dovecot.fi>
parents: 19115
diff changeset
19 i_stream_unref(&fstream->istream.parent);
18865
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
20 }
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
21
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
22 static ssize_t
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
23 i_stream_failure_at_read(struct istream_private *stream)
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
24 {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
25 struct failure_at_istream *fstream = (struct failure_at_istream *)stream;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
26 uoff_t new_offset;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
27 ssize_t ret;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
28
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
29 i_stream_seek(stream->parent, stream->parent_start_offset +
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
30 stream->istream.v_offset);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
31
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
32 ret = i_stream_read_copy_from_parent(&stream->istream);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
33 new_offset = stream->istream.v_offset + (stream->pos - stream->skip);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
34 if (ret >= 0 && new_offset >= fstream->failure_offset) {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
35 if (stream->istream.v_offset >= fstream->failure_offset) {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
36 /* we already passed the wanted failure offset,
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
37 return error immediately. */
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
38 stream->pos = stream->skip;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
39 stream->istream.stream_errno = errno = EIO;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
40 io_stream_set_error(&stream->iostream, "%s",
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
41 fstream->error_string);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
42 ret = -1;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
43 } else {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
44 /* return data up to the wanted failure offset and
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
45 on the next read() call return failure */
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
46 size_t new_pos = fstream->failure_offset -
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
47 stream->istream.v_offset + stream->skip;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
48 i_assert(new_pos >= stream->skip &&
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
49 stream->pos >= new_pos);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
50 ret -= stream->pos - new_pos;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
51 stream->pos = new_pos;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
52 }
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
53 } else if (ret < 0 && stream->istream.stream_errno == 0 &&
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
54 fstream->failure_offset == (uoff_t)-1) {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
55 /* failure at EOF */
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
56 stream->istream.stream_errno = errno = EIO;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
57 io_stream_set_error(&stream->iostream, "%s",
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
58 fstream->error_string);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
59 }
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
60 return ret;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
61 }
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
62
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
63 struct istream *
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
64 i_stream_create_failure_at(struct istream *input, uoff_t failure_offset,
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
65 const char *error_string)
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
66 {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
67 struct failure_at_istream *fstream;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
68
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
69 fstream = i_new(struct failure_at_istream, 1);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
70 fstream->istream.max_buffer_size = input->real_stream->max_buffer_size;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
71 fstream->istream.stream_size_passthrough = TRUE;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
72
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
73 fstream->istream.read = i_stream_failure_at_read;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
74 fstream->istream.iostream.destroy = i_stream_failure_at_destroy;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
75
19115
bb80b907a116 Various passthrough istreams didn't preserve readable_fd.
Timo Sirainen <tss@iki.fi>
parents: 18865
diff changeset
76 fstream->istream.istream.readable_fd = input->readable_fd;
18865
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
77 fstream->istream.istream.blocking = input->blocking;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
78 fstream->istream.istream.seekable = input->seekable;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
79
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
80 fstream->error_string = i_strdup(error_string);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
81 fstream->failure_offset = failure_offset;
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
82 return i_stream_create(&fstream->istream, input,
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
83 i_stream_get_fd(input));
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
84 }
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
85
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
86 struct istream *
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
87 i_stream_create_failure_at_eof(struct istream *input, const char *error_string)
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
88 {
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
89 return i_stream_create_failure_at(input, (uoff_t)-1, error_string);
99827acc1888 lib: Added i_stream_create_failure_at() to inject EIO at given offset in istream.
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
90 }