Re: [PATCH v5 02/50] multi-process: Refactor machine_init and exit notifiers

["Marc-André Lureau" <marcandre.lureau@gmail.com>]

Hi

On Mon, Feb 24, 2020 at 9:56 PM Jagannathan Raman <jag.raman@oracle.com> wrote:
>
> Relocate machine_int and exit notifiers into common code

utils/notify.c is not a good place to relocate those.

eventually, add a new softmmu/notifiers.c ?

And that patch broke make check test-char /char/mux, because it
overrides machine_init_done from stubs/machine-init-done.c..

>
> Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
> Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
> Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
> ---
>  include/sysemu/sysemu.h |  2 ++
>  softmmu/vl.c            | 42 ------------------------------------------
>  util/notify.c           | 43 +++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 45 insertions(+), 42 deletions(-)
>
> diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
> index dec64fc..2f37e2b 100644
> --- a/include/sysemu/sysemu.h
> +++ b/include/sysemu/sysemu.h
> @@ -17,11 +17,13 @@ extern bool qemu_uuid_set;
>
>  void qemu_add_exit_notifier(Notifier *notify);
>  void qemu_remove_exit_notifier(Notifier *notify);
> +void qemu_run_exit_notifiers(void);
>
>  extern bool machine_init_done;
>
>  void qemu_add_machine_init_done_notifier(Notifier *notify);
>  void qemu_remove_machine_init_done_notifier(Notifier *notify);
> +void qemu_run_machine_init_done_notifiers(void);
>
>  extern int autostart;
>
> diff --git a/softmmu/vl.c b/softmmu/vl.c
> index 92c7b3a..94a7b93 100644
> --- a/softmmu/vl.c
> +++ b/softmmu/vl.c
> @@ -173,12 +173,6 @@ int icount_align_option;
>  QemuUUID qemu_uuid;
>  bool qemu_uuid_set;
>
> -static NotifierList exit_notifiers =
> -    NOTIFIER_LIST_INITIALIZER(exit_notifiers);
> -
> -static NotifierList machine_init_done_notifiers =
> -    NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
> -
>  bool xen_allowed;
>  uint32_t xen_domid;
>  enum xen_mode xen_mode = XEN_EMULATE;
> @@ -2324,21 +2318,6 @@ static MachineClass *machine_parse(const char *name, GSList *machines)
>      return mc;
>  }
>
> -void qemu_add_exit_notifier(Notifier *notify)
> -{
> -    notifier_list_add(&exit_notifiers, notify);
> -}
> -
> -void qemu_remove_exit_notifier(Notifier *notify)
> -{
> -    notifier_remove(notify);
> -}
> -
> -static void qemu_run_exit_notifiers(void)
> -{
> -    notifier_list_notify(&exit_notifiers, NULL);
> -}
> -
>  static const char *pid_file;
>  static Notifier qemu_unlink_pidfile_notifier;
>
> @@ -2349,27 +2328,6 @@ static void qemu_unlink_pidfile(Notifier *n, void *data)
>      }
>  }
>
> -bool machine_init_done;
> -
> -void qemu_add_machine_init_done_notifier(Notifier *notify)
> -{
> -    notifier_list_add(&machine_init_done_notifiers, notify);
> -    if (machine_init_done) {
> -        notify->notify(notify, NULL);
> -    }
> -}
> -
> -void qemu_remove_machine_init_done_notifier(Notifier *notify)
> -{
> -    notifier_remove(notify);
> -}
> -
> -static void qemu_run_machine_init_done_notifiers(void)
> -{
> -    machine_init_done = true;
> -    notifier_list_notify(&machine_init_done_notifiers, NULL);
> -}
> -
>  static const QEMUOption *lookup_opt(int argc, char **argv,
>                                      const char **poptarg, int *poptind)
>  {
> diff --git a/util/notify.c b/util/notify.c
> index 76bab21..0e7479b 100644
> --- a/util/notify.c
> +++ b/util/notify.c
> @@ -15,6 +15,15 @@
>
>  #include "qemu/osdep.h"
>  #include "qemu/notify.h"
> +#include "sysemu/sysemu.h"
> +
> +bool machine_init_done;
> +
> +static NotifierList machine_init_done_notifiers =
> +    NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
> +
> +static NotifierList exit_notifiers =
> +    NOTIFIER_LIST_INITIALIZER(exit_notifiers);
>
>  void notifier_list_init(NotifierList *list)
>  {
> @@ -74,3 +83,37 @@ int notifier_with_return_list_notify(NotifierWithReturnList *list, void *data)
>      }
>      return ret;
>  }
> +
> +void qemu_add_machine_init_done_notifier(Notifier *notify)
> +{
> +    notifier_list_add(&machine_init_done_notifiers, notify);
> +    if (machine_init_done) {
> +        notify->notify(notify, NULL);
> +    }
> +}
> +
> +void qemu_remove_machine_init_done_notifier(Notifier *notify)
> +{
> +    notifier_remove(notify);
> +}
> +
> +void qemu_run_machine_init_done_notifiers(void)
> +{
> +    machine_init_done = true;
> +    notifier_list_notify(&machine_init_done_notifiers, NULL);
> +}
> +
> +void qemu_add_exit_notifier(Notifier *notify)
> +{
> +    notifier_list_add(&exit_notifiers, notify);
> +}
> +
> +void qemu_remove_exit_notifier(Notifier *notify)
> +{
> +    notifier_remove(notify);
> +}
> +
> +void qemu_run_exit_notifiers(void)
> +{
> +    notifier_list_notify(&exit_notifiers, NULL);
> +}
> --
> 1.8.3.1
>


-- 
Marc-André Lureau