Re: [Qemu-devel] [PATCH 12/13] monitor: hide *cur_mon in monitor_get_fd()

[Paolo Bonzini <pbonzini@redhat.com>]

Il 18/10/2013 03:11, Wenchao Xia ha scritto:
> All existing caller are using *cur_mon as its parameter, and *cur_mon
> is an internal variable which used inside monitor.c. This patch reduce
> the exposing of details in monitor.c, by introduce a new function
> monitor_get_fd_cur() and make old one static.
> 
> Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
> ---
>  dump.c                    |    2 +-
>  include/monitor/monitor.h |    2 +-
>  migration-fd.c            |    2 +-
>  monitor.c                 |    7 ++++++-
>  qmp.c                     |    2 +-
>  stubs/get-fd.c            |    2 +-
>  util/qemu-sockets.c       |    4 ++--
>  7 files changed, 13 insertions(+), 8 deletions(-)
> 
> diff --git a/dump.c b/dump.c
> index 846155c..8f5b6b0 100644
> --- a/dump.c
> +++ b/dump.c
> @@ -860,7 +860,7 @@ void qmp_dump_guest_memory(bool paging, const char *file, bool has_begin,
>  
>  #if !defined(WIN32)
>      if (strstart(file, "fd:", &p)) {
> -        fd = monitor_get_fd(cur_mon, p, errp);
> +        fd = monitor_get_fd_cur(p, errp);
>          if (fd == -1) {
>              return;
>          }
> diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h
> index 97fcee3..637f7f3 100644
> --- a/include/monitor/monitor.h
> +++ b/include/monitor/monitor.h
> @@ -35,7 +35,7 @@ int monitor_read_block_device_key(Monitor *mon, const char *device,
>                                    BlockDriverCompletionFunc *completion_cb,
>                                    void *opaque);
>  
> -int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp);
> +int monitor_get_fd_cur(const char *fdname, Error **errp);
>  int monitor_handle_fd_param(Monitor *mon, const char *fdname);
>  
>  void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
> diff --git a/migration-fd.c b/migration-fd.c
> index d2e523a..022bc50 100644
> --- a/migration-fd.c
> +++ b/migration-fd.c
> @@ -33,7 +33,7 @@
>  
>  void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp)
>  {
> -    int fd = monitor_get_fd(cur_mon, fdname, errp);
> +    int fd = monitor_get_fd_cur(fdname, errp);
>      if (fd == -1) {
>          return;
>      }
> diff --git a/monitor.c b/monitor.c
> index 9377834..80a9dfd 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -2290,7 +2290,7 @@ static void do_loadvm(Monitor *mon, const QDict *qdict)
>      }
>  }
>  
> -int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
> +static int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
>  {
>      mon_fd_t *monfd;
>  
> @@ -2315,6 +2315,11 @@ int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
>      return -1;
>  }
>  
> +int monitor_get_fd_cur(const char *fdname, Error **errp)
> +{
> +    return monitor_get_fd(cur_mon, fdname, errp);
> +}
> +
>  static void monitor_fdset_cleanup(MonFdset *mon_fdset)
>  {
>      MonFdsetFd *mon_fdset_fd;
> diff --git a/qmp.c b/qmp.c
> index 4c149b3..a02804b 100644
> --- a/qmp.c
> +++ b/qmp.c
> @@ -493,7 +493,7 @@ void qmp_add_client(const char *protocol, const char *fdname,
>      CharDriverState *s;
>      int fd;
>  
> -    fd = monitor_get_fd(cur_mon, fdname, errp);
> +    fd = monitor_get_fd_cur(fdname, errp);
>      if (fd < 0) {
>          return;
>      }
> diff --git a/stubs/get-fd.c b/stubs/get-fd.c
> index 9f2c65c..7d9ec3b 100644
> --- a/stubs/get-fd.c
> +++ b/stubs/get-fd.c
> @@ -1,7 +1,7 @@
>  #include "qemu-common.h"
>  #include "monitor/monitor.h"
>  
> -int monitor_get_fd(Monitor *mon, const char *name, Error **errp)
> +int monitor_get_fd_cur(const char *name, Error **errp)
>  {
>      error_setg(errp, "only QEMU supports file descriptor passing");
>      return -1;
> diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
> index 6b97dc1..9cd85dd 100644
> --- a/util/qemu-sockets.c
> +++ b/util/qemu-sockets.c
> @@ -902,7 +902,7 @@ int socket_connect(SocketAddress *addr, Error **errp,
>          break;
>  
>      case SOCKET_ADDRESS_KIND_FD:
> -        fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
> +        fd = monitor_get_fd_cur(addr->fd->str, errp);
>          if (fd >= 0 && callback) {
>              qemu_set_nonblock(fd);
>              callback(fd, opaque);
> @@ -934,7 +934,7 @@ int socket_listen(SocketAddress *addr, Error **errp)
>          break;
>  
>      case SOCKET_ADDRESS_KIND_FD:
> -        fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
> +        fd = monitor_get_fd_cur(addr->fd->str, errp);
>          break;
>  
>      default:
> 

Doesn't seem like an improvement.  It would be if you could then make
cur_mon static.

Paolo