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e0b22c139c
The retries are hardcoded to a small number, and error handling aborts
than propagating errors from notmuch_database_reopen. These are both
somewhat justified by the assumption that most things that can go
wrong in Xapian::Database::reopen are rare and fatal. Here's the brief
discussion with Xapian upstream:
24-02-2017 08:12:57 < bremner> any intuition about how likely
Xapian::Database::reopen is to fail? I'm catching a
DatabaseModifiedError somewhere where handling any further errors is
tricky, and wondering about treating a failed reopen as as "the
impossible happened, stopping"
24-02-2017 16:22:34 < olly> bremner: there should not be much scope for
failure - stuff like out of memory or disk errors, which are probably a
good enough excuse to stop
66 lines
1.7 KiB
Bash
Executable file
66 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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test_description="DatabaseModifiedError handling"
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. ./test-lib.sh || exit 1
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# add enough messages to trigger the exception
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add_email_corpus
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test_begin_subtest "catching DatabaseModifiedError in _notmuch_message_ensure_metadata"
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# it seems to need to be an early document to trigger the exception
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first_id=$(notmuch search --output=messages '*'| head -1 | sed s/^id://)
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test_C ${MAIL_DIR} <<EOF
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#include <unistd.h>
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#include <stdlib.h>
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#include <notmuch-test.h>
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#include <talloc.h>
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#include <assert.h>
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int
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main (int argc, char **argv)
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{
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const char *path = argv[1];
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notmuch_database_t *rw_db, *ro_db;
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notmuch_messages_t *messages;
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notmuch_message_t *message, *ro_message;
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notmuch_query_t *query;
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notmuch_tags_t *tags;
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EXPECT0 (notmuch_database_open (path, NOTMUCH_DATABASE_MODE_READ_ONLY, &ro_db));
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assert(ro_db);
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EXPECT0 (notmuch_database_find_message (ro_db, "${first_id}", &ro_message));
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assert(ro_message);
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EXPECT0 (notmuch_database_open (path, NOTMUCH_DATABASE_MODE_READ_WRITE, &rw_db));
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query = notmuch_query_create(rw_db, "");
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EXPECT0 (notmuch_query_search_messages_st (query, &messages));
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for (int count=0;
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notmuch_messages_valid (messages);
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notmuch_messages_move_to_next (messages), count++) {
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message = notmuch_messages_get (messages);
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for (int i=0; i<200; i++) {
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char *tag_str = talloc_asprintf(rw_db, "%d", i);
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EXPECT0 (notmuch_message_add_tag (message, tag_str));
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talloc_free (tag_str);
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}
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}
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notmuch_database_close (rw_db);
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tags = notmuch_message_get_tags (ro_message);
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if (tags)
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printf("SUCCESS\n");
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return 0;
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}
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EOF
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cat <<'EOF' >EXPECTED
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== stdout ==
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SUCCESS
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== stderr ==
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EOF
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test_expect_equal_file EXPECTED OUTPUT
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test_done
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