[CRIU] [PATCH 8/8] test: libcriu

Ruslan Kuprieiev kupruser at gmail.com
Wed Dec 4 07:31:08 PST 2013


On 04.12.2013 16:13, Andrew Vagin wrote:
> On Wed, Dec 04, 2013 at 05:53:39PM +0400, Ruslan Kuprieiev wrote:
>> On 04.12.2013 14:24, Andrew Vagin wrote:
>>> On Wed, Dec 04, 2013 at 02:57:31PM +0400, Ruslan Kuprieiev wrote:
>>>> Signed-off-by: Ruslan Kuprieiev <kupruser at gmail.com>
>>>> ---
>>>>   Makefile              |  1 +
>>>>   test/libcriu/Makefile | 10 +++++++
>>>>   test/libcriu/loop.sh  |  4 +++
>>>>   test/libcriu/run.sh   | 63 +++++++++++++++++++++++++++++++++++++++
>>>>   test/libcriu/test.c   | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++
>>>>   5 files changed, 160 insertions(+)
>>>>   create mode 100644 test/libcriu/Makefile
>>>>   create mode 100755 test/libcriu/loop.sh
>>>>   create mode 100755 test/libcriu/run.sh
>>>>   create mode 100644 test/libcriu/test.c
>>>>
>>>> diff --git a/Makefile b/Makefile
>>>> index cd312e7..347c4f0 100644
>>>> --- a/Makefile
>>>> +++ b/Makefile
>>>> @@ -202,6 +202,7 @@ clean: clean-built
>>>>   	$(Q) $(RM) -r ./test/lib64/
>>>>   	$(Q) $(RM) protobuf-desc-gen.h
>>>>   	$(Q) $(MAKE) -C test/zdtm cleandep clean cleanout
>>>> +	$(Q) $(MAKE) -C test/libcriu clean
>>>>   distclean: clean
>>>>   	$(E) "  DISTCLEAN"
>>>> diff --git a/test/libcriu/Makefile b/test/libcriu/Makefile
>>>> new file mode 100644
>>>> index 0000000..830eec1
>>>> --- /dev/null
>>>> +++ b/test/libcriu/Makefile
>>>> @@ -0,0 +1,10 @@
>>>> +all: build/test
>>>> +
>>>> +build/test: build/test.o
>>>> +	gcc $^ -lprotobuf -L ../../lib -lcriu -o $@
>>>> +
>>>> +build/test.o: test.c
>>>> +	gcc -c $^ -I ../../lib -I ../../protobuf -o $@
>>>> +
>>>> +clean:
>>>> +	rm -rf build
>>>> diff --git a/test/libcriu/loop.sh b/test/libcriu/loop.sh
>>>> new file mode 100755
>>>> index 0000000..0ab34ce
>>>> --- /dev/null
>>>> +++ b/test/libcriu/loop.sh
>>>> @@ -0,0 +1,4 @@
>>>> +#!/bin/bash
>>>> +while :; do
>>>> +	sleep 1
>>>> +done
>>>> diff --git a/test/libcriu/run.sh b/test/libcriu/run.sh
>>>> new file mode 100755
>>>> index 0000000..04a8c10
>>>> --- /dev/null
>>>> +++ b/test/libcriu/run.sh
>>>> @@ -0,0 +1,63 @@
>>>> +#!/bin/bash
>>>> +
>>>> +source ../env.sh || exit 1
>>>> +
>>>> +export PROTODIR=`readlink -f "${PWD}/../../protobuf"`
>>>> +
>>>> +echo $PROTODIR
>>>> +
>>>> +LOOP_PID=0
>>>> +
>>>> +function title_print {
>>>> +	echo -e "\n**************************************************"
>>>> +	echo -e "\t\t"$1
>>>> +	echo -e "**************************************************\n"
>>>> +
>>>> +}
>>>> +
>>>> +function _exit {
>>>> +	if [ $1 -ne 0 ]; then
>>>> +		echo "FAIL"
>>>> +	fi
>>>> +
>>>> +	if [ $LOOP_PID -ne 0 ]; then
>>>> +		kill -SIGTERM $LOOP_PID
>>>> +	fi
>>>> +
>>>> +	title_print "Shutdown service server"
>>>> +	kill -SIGTERM `cat pidfile`
>>>> +
>>>> +	exit $1
>>>> +}
>>>> +
>>>> +function check_and_term {
>>>> +	title_print "Check and term $1"
>>>> +	ps -C $1
>>>> +	pkill $1
>>>> +}
>>>> +
>>>> +title_print "Build programs"
>>>> +make clean
>>>> +mkdir build
>>>> +cd build
>>>> +mkdir imgs_loop
>>>> +mkdir imgs_test
>>>> +make -C ../ || { echo "FAIL"; exit 1; }
>>>> +
>>>> +title_print "Start service server"
>>>> +${CRIU} service -v4 -o service.log --address criu_service.socket -d --pidfile `pwd`/pidfile || { echo "FAIL"; exit 1; }
>>>> +
>>>> +title_print "Run loop.sh"
>>>> +setsid ../loop.sh < /dev/null &> loop.log &
>>>> +LOOP_PID=${!}
>>>> +echo "pid ${LOOP_PID}"
>>>> +
>>>> +title_print "Run test.c"
>>>> +LD_LIBRARY_PATH=../../../lib
>>>> +export LD_LIBRARY_PATH
>>>> +./test ${LOOP_PID} || _exit $?
>>>> +
>>>> +title_print "Restore test.c"
>>>> +${CRIU} restore -v4 -o restore-test.log -D imgs_test --shell-job || _exit $?
>>>> +
>>>> +_exit 0
>>>> diff --git a/test/libcriu/test.c b/test/libcriu/test.c
>>>> new file mode 100644
>>>> index 0000000..e45abbc
>>>> --- /dev/null
>>>> +++ b/test/libcriu/test.c
>>>> @@ -0,0 +1,82 @@
>>>> +#include "criu.h"
>>>> +#include <fcntl.h>
>>>> +
>>>> +static void criu_error(int ret)
>>>> +{
>>>> +	switch (ret) {
>>>> +	case CRIU_ECONNECT:
>>>> +		puts("CRIU_ECONNECT");
>>>> +		break;
>>>> +	case CRIU_EREQ:
>>>> +		puts("CRIU_EREQ");
>>>> +		break;
>>>> +	case CRIU_ERESP:
>>>> +		puts("CRIU_ERESP");
>>>> +		break;
>>>> +	case CRIU_ECHECK:
>>>> +		puts("CRIU_ECONNECT");
>>>> +		break;
>>>> +
>>>> +	default:
>>>> +		puts("Unknown error");
>>>> +	}
>>>> +}
>>>> +
>>>> +int main(int argc, char *argv[])
>>>> +{
>>>> +	int ret;
>>>> +	CriuOpts opts	= CRIU_OPTS__INIT;
>>>> +	CriuResp *resp	= NULL;
>>> protobuf guarantees compatibility only for packed objects
>> Excuse me, could you please explain what do you mean?
> If you add a new field in the CriuResp protobuf, you can't be sure, that
> all old applications will continue work with a new CRIU binaries.
>
> Old applications was compiled with old headers, but they will load
> the new CRIU library.

Oh, good point. So, I suppose, we just need to return packet resp?

>
>>>> +
>>>> +	criu_set_service_address("criu_service.socket");
>>>> +
>>>> +	puts("--- Check ---");
>>>> +	ret = criu_check();
>>>> +	if (ret < 0) {
>>>> +		criu_error(ret);
>>>> +		return -1;
>>>> +	} else
>>>> +		puts("Success");
>>>> +
>>>> +	puts("--- Dump loop ---");
>>>> +	opts.has_pid		= true;
>>>> +	opts.pid		= atoi(argv[1]);
>>>> +	opts.has_log_level	= true;
>>>> +	opts.log_level		= 4;
>>>> +	opts.images_dir_fd	= open("imgs_loop", O_DIRECTORY);
>>>> +
>>>> +	ret = criu_dump(&opts, &resp);
>>>> +	if (ret < 0) {
>>>> +		criu_error(ret);
>>>> +		return -1;
>>>> +	} else if (resp->success)
>>>> +		puts("Success");
>>>> +
>>>> +	puts("--- Restore loop ---");
>>>> +	ret = criu_restore(&opts, &resp);
>>>> +	if (ret < 0) {
>>>> +		criu_error(ret);
>>>> +		return -1;
>>>> +	} else if (resp->success)
>>>> +		puts("Success");
>>>> +
>>>> +	puts("--- Dump myself ---");
>>>> +	opts.has_pid		= false; /* unset pid, so criu will dump requesting process */
>>>> +	opts.has_leave_running	= true;
>>>> +	opts.leave_running	= true;
>>>> +	opts.has_shell_job	= true;
>>>> +	opts.shell_job		= true;
>>>> +	opts.images_dir_fd	= open("imgs_test", O_DIRECTORY);
>>>> +
>>>> +	ret = criu_dump(&opts, &resp);
>>>> +	if (ret < 0) {
>>>> +		criu_error(ret);
>>>> +		return -1;
>>>> +	} else if (resp->success) {
>>>> +		puts("Success");
>>>> +		if (resp->dump->has_restored && resp->dump->restored)
>>>> +			puts("Restored");
>>>> +	}
>>>> +
>>>> +	return 0;
>>>> +}
>>>> -- 
>>>> 1.8.1.2
>>>>
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>>>> CRIU at openvz.org
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