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libqtest: add qtest_kill_qemu() 

Tests that manage multiple processes may wish to kill QEMU before
destroying the QTestState. Expose a function to do that.

The vhost-user-blk-test testcase will need this.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20210223144653.811468-4-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2021-02-23 14:46:44 +00:00 committed by Kevin Wolf
parent 9fb7bb0698
commit 7a23c52376
2 changed files with 15 additions and 3 deletions
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11
tests/qtest/libqos/libqtest.h
View File

@ -74,6 +74,17 @@ QTestState *qtest_init_without_qmp_handshake(const char *extra_args);
*/ */
QTestState *qtest_init_with_serial(const char *extra_args, int *sock_fd); QTestState *qtest_init_with_serial(const char *extra_args, int *sock_fd);
/**
* qtest_kill_qemu:
* @s: #QTestState instance to operate on.
*
* Kill the QEMU process and wait for it to terminate. It is safe to call this
* function multiple times. Normally qtest_quit() is used instead because it
* also frees QTestState. Use qtest_kill_qemu() when you just want to kill QEMU
* and qtest_quit() will be called later.
*/
void qtest_kill_qemu(QTestState *s);
/** /**
* qtest_quit: * qtest_quit:
* @s: #QTestState instance to operate on. * @s: #QTestState instance to operate on.

7
tests/qtest/libqtest.c
View File

@ -133,7 +133,7 @@ void qtest_set_expected_status(QTestState *s, int status)
s->expected_status = status; s->expected_status = status;
} }
static void kill_qemu(QTestState *s) void qtest_kill_qemu(QTestState *s)
{ {
pid_t pid = s->qemu_pid; pid_t pid = s->qemu_pid;
int wstatus; int wstatus;
@ -143,6 +143,7 @@ static void kill_qemu(QTestState *s)
kill(pid, SIGTERM); kill(pid, SIGTERM);
TFR(pid = waitpid(s->qemu_pid, &s->wstatus, 0)); TFR(pid = waitpid(s->qemu_pid, &s->wstatus, 0));
assert(pid == s->qemu_pid); assert(pid == s->qemu_pid);
s->qemu_pid = -1;
} }
/* /*
@ -169,7 +170,7 @@ static void kill_qemu(QTestState *s)
static void kill_qemu_hook_func(void *s) static void kill_qemu_hook_func(void *s)
{ {
kill_qemu(s); qtest_kill_qemu(s);
} }
static void sigabrt_handler(int signo) static void sigabrt_handler(int signo)
@ -373,7 +374,7 @@ void qtest_quit(QTestState *s)
/* Uninstall SIGABRT handler on last instance */ /* Uninstall SIGABRT handler on last instance */
cleanup_sigabrt_handler(); cleanup_sigabrt_handler();
kill_qemu(s); qtest_kill_qemu(s);
close(s->fd); close(s->fd);
close(s->qmp_fd); close(s->qmp_fd);
g_string_free(s->rx, true); g_string_free(s->rx, true);