Leonardo Bras b88651cb4d QIOChannel: Add flags on io_writev and introduce io_flush callback ... Add flags to io_writev and introduce io_flush as optional callback to QIOChannelClass, allowing the implementation of zero copy writes by subclasses. How to use them: - Write data using qio_channel_writev*(...,QIO_CHANNEL_WRITE_FLAG_ZERO_COPY), - Wait write completion with qio_channel_flush(). Notes: As some zero copy write implementations work asynchronously, it's recommended to keep the write buffer untouched until the return of qio_channel_flush(), to avoid the risk of sending an updated buffer instead of the buffer state during write. As io_flush callback is optional, if a subclass does not implement it, then: - io_flush will return 0 without changing anything. Also, some functions like qio_channel_writev_full_all() were adapted to receive a flag parameter. That allows shared code between zero copy and non-zero copy writev, and also an easier implementation on new flags. Signed-off-by: Leonardo Bras <leobras@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20220513062836.965425-3-leobras@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>		2022-05-16 13:56:24 +01:00
..
check-block-qdict.c
check-qdict.c
check-qjson.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
check-qlist.c
check-qlit.c
check-qnull.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
check-qnum.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
check-qobject.c	tests: remove block/qdict checks from check-qobject.c	2022-04-21 17:03:51 +04:00
check-qom-interface.c
check-qom-proplist.c	include: add qemu/keyval.h	2022-04-21 17:03:51 +04:00
check-qstring.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
crypto-tls-psk-helpers.c	tests: add migration tests of TLS with PSK credentials	2022-05-16 11:46:04 +01:00
crypto-tls-psk-helpers.h	tests: add migration tests of TLS with PSK credentials	2022-05-16 11:46:04 +01:00
crypto-tls-x509-helpers.c	tests: fix encoding of IP addresses in x509 certs	2022-05-16 11:46:04 +01:00
crypto-tls-x509-helpers.h	tests: add more helper macros for creating TLS x509 certs	2022-05-16 11:46:04 +01:00
io-channel-helpers.c
io-channel-helpers.h
iothread.c	async: the main AioContext is only "current" if under the BQL	2021-06-18 10:59:52 -05:00
iothread.h
meson.build	libqtest: split QMP part in libqmp	2022-05-03 15:17:08 +04:00
pkix_asn1_tab.c	tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT	2021-06-25 10:53:46 +02:00
ptimer-test-stubs.c	misc: Remove unnecessary "sysemu/cpu-timers.h" include	2022-03-06 13:15:42 +01:00
ptimer-test.c
ptimer-test.h
rcutorture.c	rcu: use coroutine TLS macros	2022-03-04 18:14:40 +01:00
socket-helpers.c	util: rename qemu_*block() socket functions	2022-05-03 15:53:20 +04:00
socket-helpers.h
test-aio-multithread.c
test-aio.c	aio-posix: split poll check from ready handler	2022-01-12 17:09:39 +00:00
test-authz-list.c
test-authz-listfile.c
test-authz-pam.c
test-authz-simple.c
test-base64.c
test-bdrv-drain.c	test-bdrv-drain: don't use BlockJob.blk	2021-12-28 15:18:56 +01:00
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
test-bitmap.c
test-bitops.c
test-block-backend.c
test-block-iothread.c	block: rename bdrv_invalidate_cache_all, blk_invalidate_cache and test_sync_op_invalidate_cache	2022-03-04 18:14:40 +01:00
test-blockjob-txn.c	test-blockjob-txn: don't abuse job->blk	2021-12-28 15:18:52 +01:00
test-blockjob.c	job: @force parameter for job_cancel_sync()	2021-10-07 10:42:09 +02:00
test-bufferiszero.c
test-char.c	char: Deprecate backend aliases 'tty' and 'parport'	2021-03-19 10:18:06 +01:00
test-clone-visitor.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-coroutine.c	test-coroutine: Add rwlock downgrade test	2021-03-31 10:44:21 +01:00
test-crypto-afsplit.c
test-crypto-block.c
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
test-crypto-tlscredsx509.c	tests: remove QCRYPTO_HAVE_TLS_TEST_SUPPORT	2021-06-25 10:53:46 +02:00
test-crypto-tlssession.c	tests: fix encoding of IP addresses in x509 certs	2022-05-16 11:46:04 +01:00
test-crypto-xts.c
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	aio-posix: split poll check from ready handler	2022-01-12 17:09:39 +00:00
test-forward-visitor.c	include: add qemu/keyval.h	2022-04-21 17:03:51 +04:00
test-hbitmap.c	Use g_new() & friends where that makes obvious sense	2022-03-21 15:44:44 +01:00
test-image-locking.c
test-int128.c	qemu/int128: add int128_urshift	2022-04-20 18:00:30 -03:00
test-io-channel-buffer.c
test-io-channel-command.c
test-io-channel-file.c	tests: replace pipe() with g_unix_open_pipe(CLOEXEC)	2022-05-03 15:46:08 +04:00
test-io-channel-socket.c	QIOChannel: Add flags on io_writev and introduce io_flush callback	2022-05-16 13:56:24 +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
test-iov.c	Replace fcntl(O_NONBLOCK) with g_unix_set_fd_nonblocking()	2022-05-03 15:47:38 +04:00
test-keyval.c	include: add qemu/keyval.h	2022-04-21 17:03:51 +04:00
test-logging.c	util/log: Remove qemu_log_close	2022-04-20 10:51:11 -07:00
test-mul64.c
test-opts-visitor.c
test-qapi-util.c
test-qdev-global-props.c
test-qdist.c
test-qemu-opts.c	qemu-option: remove now-dead code	2021-07-06 08:33:51 +02:00
test-qga.c	tests: move libqtest.h back under qtest/	2022-05-03 15:16:51 +04:00
test-qgraph.c	tests: Remove uses of deprecated raspi2/raspi3 machine names	2021-09-01 11:08:15 +01:00
test-qht.c
test-qmp-cmds.c	Use g_new() & friends where that makes obvious sense	2022-03-21 15:44:44 +01:00
test-qmp-event.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-qobject-input-visitor.c	qapi-schema: test: add a unit test for parsing array alternates	2022-04-21 10:11:25 +02:00
test-qobject-output-visitor.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-rcu-list.c	rcu: use coroutine TLS macros	2022-03-04 18:14:40 +01:00
test-rcu-simpleq.c
test-rcu-slist.c
test-rcu-tailq.c
test-replication.c	replication: move include out of root directory	2021-05-26 14:49:46 +02:00
test-seccomp.c	seccomp: fix blocking of process spawning	2022-02-16 18:52:40 +00:00
test-shift128.c
test-smp-parse.c	tests/unit/test-smp-parse: Keep default MIN/MAX CPUs in machine_base_class_init	2021-12-31 13:42:48 +01:00
test-string-input-visitor.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-string-output-visitor.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-thread-pool.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-throttle.c
test-timed-average.c
test-util-filemonitor.c
test-util-sockets.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-uuid.c
test-visitor-serialization.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-vmstate.c	Use g_new() & friends where that makes obvious sense	2022-03-21 15:44:44 +01:00
test-write-threshold.c	write-threshold: deal with includes	2021-05-14 16:14:10 +02:00
test-x86-cpuid.c
test-xbzrle.c	Remove qemu-common.h include from most units	2022-04-06 14:31:55 +02:00
test-yank.c	qapi: Convert simple union SocketAddressLegacy to flat one	2021-09-27 08:23:25 +02:00