qemu/util
Vladimir Sementsov-Ogievskiy 8cad15b156 util: add transactions.c
Add simple transaction API to use in further update of block graph
operations.

Supposed usage is:

- "prepare" is main function of the action and it should make the main
  effect of the action to be visible for the following actions, keeping
  possibility of roll-back, saving necessary things in action state,
  which is prepended to the action list (to do that, prepare func
  should call tran_add()). So, driver struct doesn't include "prepare"
  field, as it is supposed to be called directly.

- commit/rollback is supposed to be called for the list of action
  states, to commit/rollback all the actions in reverse order

- When possible "commit" should not make visible effect for other
  actions, which make possible transparent logical interaction between
  actions.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210428151804.439460-9-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-04-30 12:27:47 +02:00
..
aio-posix.c
aio-posix.h
aio-wait.c
aio-win32.c qmp: fix aio_poll() assertion failure on Windows 2020-11-03 16:24:56 +01:00
aiocb.c
async.c
atomic64.c
base64.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
bitmap.c
bitops.c
block-helpers.c block: move logical block size check function to a common utility function 2020-10-23 13:42:16 +01:00
block-helpers.h block: move logical block size check function to a common utility function 2020-10-23 13:42:16 +01:00
buffer.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
bufferiszero.c
cacheflush.c util/cacheflush: Fix error generated by clang 2021-01-21 13:00:41 +01:00
cacheinfo.c util: Enhance flush_icache_range with separate data pointer 2021-01-07 05:09:41 -10:00
compatfd.c util/compatfd.c: Fixed style issues 2021-04-01 14:28:39 +02:00
coroutine-sigaltstack.c coroutine-sigaltstack: Add SIGUSR2 mutex 2021-01-26 14:36:37 +01:00
coroutine-ucontext.c
coroutine-win32.c
crc32c.c
crc-ccitt.c util: Add CRC16 (CCITT) calculation routines 2021-01-24 20:10:54 +01:00
cutils.c utils: Work around mingw strto*l bug with 0x 2021-03-24 14:25:41 +00:00
dbus.c
drm.c
envlist.c
error.c
event_notifier-posix.c event_notifier: Set ->initialized earlier in event_notifier_init() 2021-02-16 17:15:39 +01:00
event_notifier-win32.c
fdmon-epoll.c
fdmon-io_uring.c
fdmon-poll.c
fifo8.c utils/fifo8: change fatal errors from abort() to assert() 2021-02-07 20:38:20 +00:00
filemonitor-inotify.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
filemonitor-stub.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
getauxval.c
guest-random.c
hbitmap.c
hexdump.c
host-utils.c
id.c net: Use id_generate() in the network subsystem, too 2021-03-09 21:47:45 +01:00
iov.c util/iov: make qemu_iovec_init_extended() honest 2021-02-03 08:00:33 -06:00
iova-tree.c
keyval.c keyval: Use GString to accumulate value strings 2020-12-19 10:39:23 +01:00
lockcnt.c
log.c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
main-loop.c qtest: delete superfluous inclusions of qtest.h 2021-03-09 06:03:53 +01:00
memfd.c
meson.build util: add transactions.c 2021-04-30 12:27:47 +02:00
mmap-alloc.c memory: alloc RAM from file at offset 2021-02-09 20:53:56 +00:00
module.c util: fix use-after-free in module_load_one 2021-04-01 15:27:44 +04:00
notify.c
nvdimm-utils.c Clean up includes 2020-12-10 17:16:44 +01:00
osdep.c
oslib-posix.c memory: alloc RAM from file at offset 2021-02-09 20:53:56 +00:00
oslib-win32.c util/oslib-win32: Fix _aligned_malloc() arguments order 2021-01-11 14:59:21 +01:00
pagesize.c
path.c
qdist.c
qemu-co-shared-resource.c
qemu-config.c qemu-config: add error propagation to qemu_config_parse 2021-03-06 11:41:54 +01:00
qemu-coroutine-io.c
qemu-coroutine-lock.c coroutine-lock: Reimplement CoRwlock to fix downgrade bug 2021-03-31 10:44:21 +01:00
qemu-coroutine-sleep.c
qemu-coroutine.c
qemu-error.c error: rename error_with_timestamp to message_with_timestamp 2021-02-01 10:50:55 +00:00
qemu-openpty.c
qemu-option.c qemu-option: do not suggest using the delay option 2021-03-06 11:42:57 +01:00
qemu-print.c
qemu-progress.c
qemu-sockets.c sockets: Make abstract UnixSocketAddress depend on CONFIG_LINUX 2020-11-03 13:17:25 +00:00
qemu-thread-common.h
qemu-thread-posix.c
qemu-thread-win32.c
qemu-timer-common.c semihosting: Implement SYS_ELAPSED and SYS_TICKFREQ 2021-01-18 10:05:06 +00:00
qemu-timer.c spapr: rollback 'unplug timeout' for CPU hotunplugs 2021-04-12 12:27:14 +10:00
qht.c
qsp.c
range.c
rcu.c
readline.c readline: Fix possible array index out of bounds in readline_hist_add() 2021-01-04 11:13:39 +00:00
selfmap.c
stats64.c
sys_membarrier.c
systemd.c
thread-pool.c
throttle.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
timed-average.c
trace-events migration: introduce UFFD-WP low-level interface helpers 2021-02-08 11:19:51 +00:00
trace.h
transactions.c util: add transactions.c 2021-04-30 12:27:47 +02:00
unicode.c
uri.c
userfaultfd.c migration: introduce UFFD-WP low-level interface helpers 2021-02-08 11:19:51 +00:00
uuid.c
vfio-helpers.c Pull request for 5.2 2020-11-23 13:03:13 +00:00
vhost-user-server.c util/vhost-user-server: move header to include/ 2020-10-23 13:42:16 +01:00
yank.c yank: Remove dependency on qiochannel 2021-04-01 15:27:44 +04:00