some users might want to call a script when qemu exits, without listening
to a qmp monitor for events when running with --daemonize
this option is only available on non windows systems,
since there is no fork there and no --daemonize option
this can be used for things like external cleanups
Signed-off-by: Dominik Csapak <d.csa...@proxmox.com>
---
changes since v1:
* only for non WIN32
* use qemu_launch_script
* fix error in option description (@var{file} instead of $var{file})
qemu-options.hx | 20 ++++++++++++++++++++
vl.c | 29 +++++++++++++++++++++++++++++
2 files changed, 49 insertions(+)
diff --git a/qemu-options.hx b/qemu-options.hx
index f139459e80..6a67ec76fe 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -3421,6 +3421,26 @@ This allows for instance switching to monitor to commit
changes to the
disk image.
ETEXI
+#ifndef _WIN32
+DEF("exit-script", HAS_ARG, QEMU_OPTION_exit_script, \
+ "-exit-script <file>\n"
+ " Execute the script in file on exit.\n"
+ " The arguments are:\n"
+ " - the shutdown reason,\n"
+ " - if it was really a reset (if -no-reboot was
set)\n"
+ " - the name of the guest",
+ QEMU_ARCH_ALL)
+STEXI
+@item -exit-script @var{file}
+@findex -exit-script
+Execute the script @var{file} on exit.
+The arguments are:
+ - the shutdown reason
+ - if it was really a reset (if -no-reboot was set)
+ - the name of the guest
+ETEXI
+#endif
+
DEF("loadvm", HAS_ARG, QEMU_OPTION_loadvm, \
"-loadvm [tag|id]\n" \
" start right away with a saved state (loadvm in
monitor)\n",
diff --git a/vl.c b/vl.c
index 0388852deb..5adf7c80f7 100644
--- a/vl.c
+++ b/vl.c
@@ -1522,6 +1522,9 @@ void vm_state_notify(int running, RunState state)
}
}
+static ShutdownCause shutdown_reason;
+static bool shutdown_was_reset;
+
static ShutdownCause reset_requested;
static ShutdownCause shutdown_requested;
static int shutdown_signal;
@@ -1681,6 +1684,7 @@ void qemu_system_guest_panicked(GuestPanicInformation
*info)
void qemu_system_reset_request(ShutdownCause reason)
{
if (no_reboot && reason != SHUTDOWN_CAUSE_SUBSYSTEM_RESET) {
+ shutdown_was_reset = true;
shutdown_requested = reason;
} else {
reset_requested = reason;
@@ -1811,6 +1815,7 @@ static bool main_loop_should_exit(void)
if (no_shutdown) {
vm_stop(RUN_STATE_SHUTDOWN);
} else {
+ shutdown_reason = request;
return true;
}
}
@@ -2908,6 +2913,7 @@ int main(int argc, char **argv, char **envp)
Error *err = NULL;
bool list_data_dirs = false;
char *dir, **dirs;
+ const char *exit_script = NULL;
typedef struct BlockdevOptions_queue {
BlockdevOptions *bdo;
Location loc;
@@ -3596,6 +3602,11 @@ int main(int argc, char **argv, char **envp)
case QEMU_OPTION_no_shutdown:
no_shutdown = 1;
break;
+#ifndef _WIN32
+ case QEMU_OPTION_exit_script:
+ exit_script = optarg;
+ break;
+#endif
case QEMU_OPTION_show_cursor:
cursor_hide = 0;
break;
@@ -4590,5 +4601,23 @@ int main(int argc, char **argv, char **envp)
migration_object_finalize();
/* TODO: unref root container, check all devices are ok */
+ if (exit_script) {
+ char *args[5];
+ Error *local_err = NULL;
+ args[0] = (char *)exit_script;
+ args[1] = g_strdup_printf("%d", shutdown_reason);
+ args[2] = g_strdup_printf("%d", shutdown_was_reset);
+ args[3] = (char *)qemu_get_vm_name();
+ args[4] = NULL;
+
+ qemu_launch_script(exit_script, args, -1, &local_err);
+ g_free(args[1]);
+ g_free(args[2]);
+ if (local_err) {
+ error_report_err(local_err);
+ exit(1);
+ }
+ }
+
return 0;
}
--
2.11.0
