Re: [Qemu-devel] [PATCH] qemu-ga: fix bsd build, and re-org linux-specific implementations

[Luiz Capitulino <lcapitulino@redhat.com>]

On Sun, 25 Mar 2012 14:40:30 -0500
Michael Roth <mdroth@linux.vnet.ibm.com> wrote:

> 
> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
> ---
>  qga/commands-posix.c |  111 +++++++++++++++++++++++++++++--------------------
>  1 files changed, 66 insertions(+), 45 deletions(-)

Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>

> 
> diff --git a/qga/commands-posix.c b/qga/commands-posix.c
> index 7b2be2f..faf970d 100644
> --- a/qga/commands-posix.c
> +++ b/qga/commands-posix.c
> @@ -12,29 +12,30 @@
>   */
>  
>  #include <glib.h>
> +#include <sys/types.h>
> +#include <sys/ioctl.h>
> +#include "qga/guest-agent-core.h"
> +#include "qga-qmp-commands.h"
> +#include "qerror.h"
> +#include "qemu-queue.h"
> +#include "host-utils.h"
>  
>  #if defined(__linux__)
>  #include <mntent.h>
>  #include <linux/fs.h>
> -
> -#if defined(__linux__) && defined(FIFREEZE)
> -#define CONFIG_FSFREEZE
> -#endif
> -#endif
> -
> -#include <sys/types.h>
> -#include <sys/ioctl.h>
>  #include <ifaddrs.h>
>  #include <arpa/inet.h>
>  #include <sys/socket.h>
>  #include <net/if.h>
>  #include <sys/wait.h>
> -#include "qga/guest-agent-core.h"
> -#include "qga-qmp-commands.h"
> -#include "qerror.h"
> -#include "qemu-queue.h"
> -#include "host-utils.h"
>  
> +#if defined(__linux__) && defined(FIFREEZE)
> +#define CONFIG_FSFREEZE
> +#endif
> +#endif
> +
> +#if defined(__linux__)
> +/* TODO: use this in place of all post-fork() fclose(std*) callers */
>  static void reopen_fd_to_null(int fd)
>  {
>      int nullfd;
> @@ -50,6 +51,7 @@ static void reopen_fd_to_null(int fd)
>          close(nullfd);
>      }
>  }
> +#endif /* defined(__linux__) */
>  
>  void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err)
>  {
> @@ -309,7 +311,11 @@ static void guest_file_init(void)
>      QTAILQ_INIT(&guest_file_state.filehandles);
>  }
>  
> +/* linux-specific implementations. avoid this if at all possible. */
> +#if defined(__linux__)
> +
>  #if defined(CONFIG_FSFREEZE)
> +
>  static void disable_logging(void)
>  {
>      ga_disable_logging(ga_state);
> @@ -505,38 +511,7 @@ static void guest_fsfreeze_cleanup(void)
>          }
>      }
>  }
> -#else
> -/*
> - * Return status of freeze/thaw
> - */
> -GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **err)
> -{
> -    error_set(err, QERR_UNSUPPORTED);
> -
> -    return 0;
> -}
> -
> -/*
> - * Walk list of mounted file systems in the guest, and freeze the ones which
> - * are real local file systems.
> - */
> -int64_t qmp_guest_fsfreeze_freeze(Error **err)
> -{
> -    error_set(err, QERR_UNSUPPORTED);
> -
> -    return 0;
> -}
> -
> -/*
> - * Walk list of frozen file systems in the guest, and thaw them.
> - */
> -int64_t qmp_guest_fsfreeze_thaw(Error **err)
> -{
> -    error_set(err, QERR_UNSUPPORTED);
> -
> -    return 0;
> -}
> -#endif
> +#endif /* CONFIG_FSFREEZE */
>  
>  #define LINUX_SYS_STATE_FILE "/sys/power/state"
>  #define SUSPEND_SUPPORTED 0
> @@ -904,6 +879,52 @@ error:
>      return NULL;
>  }
>  
> +#else /* defined(__linux__) */
> +
> +GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **err)
> +{
> +    error_set(err, QERR_UNSUPPORTED);
> +
> +    return 0;
> +}
> +
> +int64_t qmp_guest_fsfreeze_freeze(Error **err)
> +{
> +    error_set(err, QERR_UNSUPPORTED);
> +
> +    return 0;
> +}
> +
> +int64_t qmp_guest_fsfreeze_thaw(Error **err)
> +{
> +    error_set(err, QERR_UNSUPPORTED);
> +
> +    return 0;
> +}
> +
> +void qmp_guest_suspend_disk(Error **err)
> +{
> +    error_set(err, QERR_UNSUPPORTED);
> +}
> +
> +void qmp_guest_suspend_ram(Error **err)
> +{
> +    error_set(err, QERR_UNSUPPORTED);
> +}
> +
> +void qmp_guest_suspend_hybrid(Error **err)
> +{
> +    error_set(err, QERR_UNSUPPORTED);
> +}
> +
> +GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
> +{
> +    error_set(errp, QERR_UNSUPPORTED);
> +    return NULL;
> +}
> +
> +#endif
> +
>  /* register init/cleanup routines for stateful command groups */
>  void ga_command_state_init(GAState *s, GACommandState *cs)
>  {