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qemu/tests/unit
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Alexander Graf 1a796cd199 Make char muxer more robust wrt small FIFOs 
Virtio-Console can only process one character at a time. Using it on S390
gave me strange "lags" where I got the character I pressed before when
pressing one. So I typed in "abc" and only received "a", then pressed "d"
but the guest received "b" and so on.

While the stdio driver calls a poll function that just processes on its
queue in case virtio-console can't take multiple characters at once, the
muxer does not have such callbacks, so it can't empty its queue.

To work around that limitation, I introduced a new timer that only gets
active when the guest can not receive any more characters. In that case
it polls again after a while to check if the guest is now receiving input.

This patch fixes input when using -nographic on s390 for me.

[AF: Rebased for v2.7.0-rc2]
[BR: minor edits to pass qemu's checkpatch script]
Signed-off-by: Bruce Rogers <brogers@suse.com>
2021-12-16 16:57:45 +01:00
..
check-block-qdict.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qdict.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qjson.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qlist.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qlit.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qnull.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qnum.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qobject.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qom-interface.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
check-qom-proplist.c
qapi: Improve input_type_enum()'s error message
2021-10-27 17:17:28 +02:00
check-qstring.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
crypto-tls-psk-helpers.c
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
crypto-tls-psk-helpers.h
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
crypto-tls-x509-helpers.c
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
crypto-tls-x509-helpers.h
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
io-channel-helpers.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
io-channel-helpers.h
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
iothread.c
async: the main AioContext is only "current" if under the BQL
2021-06-18 10:59:52 -05:00
iothread.h
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
meson.build
tests/unit: Add an unit test for smp parsing
2021-11-01 19:44:11 +01:00
pkix_asn1_tab.c
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
ptimer-test-stubs.c
util/async: add a human-readable name to BHs for debugging
2021-07-05 11:40:32 +01:00
ptimer-test.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
ptimer-test.h
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
rcutorture.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
socket-helpers.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
socket-helpers.h
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-aio-multithread.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-aio.c
tests: cover aio_co_enter from a worker thread without BQL taken
2021-06-18 10:59:52 -05:00
test-authz-list.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-authz-listfile.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-authz-pam.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-authz-simple.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-base64.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-bdrv-drain.c
block: use int64_t instead of uint64_t in driver read handlers
2021-09-29 13:46:31 -05:00
test-bdrv-graph-mod.c
block: move supports_backing check to bdrv_set_file_or_backing_noperm()
2021-06-29 16:51:00 +02:00
test-bitcnt.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-bitmap.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-bitops.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-block-backend.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-block-iothread.c
block: use int64_t instead of int in driver discard handlers
2021-09-29 13:46:32 -05:00
test-blockjob-txn.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-blockjob.c
job: @force parameter for job_cancel_sync()
2021-10-07 10:42:09 +02:00
test-bufferiszero.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-char.c
Make char muxer more robust wrt small FIFOs
2021-12-16 16:57:45 +01:00
test-clone-visitor.c
test-clone-visitor: Correct an accidental rename
2021-09-27 08:23:25 +02:00
test-coroutine.c
test-coroutine: Add rwlock downgrade test
2021-03-31 10:44:21 +01:00
test-crypto-afsplit.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-crypto-block.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-crypto-cipher.c
crypto: replace 'des-rfb' cipher with 'des'
2021-07-14 14:15:52 +01:00
test-crypto-hash.c
crypto: use &error_fatal in crypto tests
2021-07-14 14:15:52 +01:00
test-crypto-hmac.c
crypto: use &error_fatal in crypto tests
2021-07-14 14:15:52 +01:00
test-crypto-ivgen.c
crypto: skip essiv ivgen tests if AES+ECB isn't available
2021-07-14 14:15:52 +01:00
test-crypto-pbkdf.c
crypto: remove obsolete crypto test condition
2021-07-14 14:15:52 +01:00
test-crypto-secret.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-crypto-tlscredsx509.c
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
test-crypto-tlssession.c
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
test-crypto-xts.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-cutils.c
utils: Work around mingw strto*l bug with 0x
2021-03-24 14:25:41 +00:00
test-div128.c
host-utils: add unit tests for divu128/divs128
2021-10-27 17:10:00 -07:00
test-fdmon-epoll.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-forward-visitor.c
qapi: introduce forwarding visitor
2021-07-23 18:17:17 +02:00
test-hbitmap.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-image-locking.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-int128.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-io-channel-buffer.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-io-channel-command.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-io-channel-file.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-io-channel-socket.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-io-channel-tls.c
tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT
2021-06-25 10:53:46 +02:00
test-io-task.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-iov.c
tests/unit: Remove unused variable from test_io
2021-07-26 07:07:28 -10:00
test-keyval.c
keyval: introduce keyval_merge
2021-07-06 08:33:51 +02:00
test-logging.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-mul64.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-opts-visitor.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-qapi-util.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-qdev-global-props.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-qdist.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-qemu-opts.c
qemu-option: remove now-dead code
2021-07-06 08:33:51 +02:00
test-qga.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-qgraph.c
tests: Remove uses of deprecated raspi2/raspi3 machine names
2021-09-01 11:08:15 +01:00
test-qht.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-qmp-cmds.c
tests/qapi-schema: Drop simple union __org.qemu_x-Union1
2021-09-27 08:23:25 +02:00
test-qmp-event.c
qapi: Enforce event naming rules
2021-03-23 22:31:05 +01:00
test-qobject-input-visitor.c
test-qobject-input-visitor: Wean off UserDefListUnion
2021-09-27 08:23:25 +02:00
test-qobject-output-visitor.c
test-qobject-output-visitor: Wean off UserDefListUnion
2021-09-27 08:23:25 +02:00
test-rcu-list.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-rcu-simpleq.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-rcu-slist.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-rcu-tailq.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-replication.c
replication: move include out of root directory
2021-05-26 14:49:46 +02:00
test-shift128.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-smp-parse.c
tests/unit/test-smp-parse: Explicit MachineClass name
2021-11-15 21:49:16 +01:00
test-string-input-visitor.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-string-output-visitor.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-thread-pool.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-throttle.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-timed-average.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-util-filemonitor.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-util-sockets.c
test-util-sockets: Add stub for monitor_set_cur()
2021-03-19 16:05:11 +01:00
test-uuid.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-visitor-serialization.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-vmstate.c
tests/unit/test-vmstate: Assert that dup() and mkstemp() succeed
2021-06-03 16:43:27 +01:00
test-write-threshold.c
write-threshold: deal with includes
2021-05-14 16:14:10 +02:00
test-x86-cpuid.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-xbzrle.c
tests: Move unit tests into a separate directory
2021-03-12 15:46:30 +01:00
test-yank.c
qapi: Convert simple union SocketAddressLegacy to flat one
2021-09-27 08:23:25 +02:00