Re: [PATCH v2] Use #ifdef {HAVE, USE}_FOO instead of #if {HAVE, USE}_FOO

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On Thu, Feb 11, 2016 at 10:51 AM, Fabiano Fidêncio <fabiano@xxxxxxxxxxxx> wrote:
> On Thu, Feb 11, 2016 at 9:52 AM, Fabiano Fidêncio <fidencio@xxxxxxxxxx> wrote:
>> While "#if USE_FOO" checks for the value of the variable USE_FOO,
>> "#ifdef" checks whether USE_FOO is defined or not.
>>
>> It means, if we had something like: #define USE_FOO 0, we would have:
>>  #if USE_FOO
>>  /* Any code in here would NOT be compiled */
>>  #endif
>>
>>  #ifdef USE_FOO
>>  /* Any code in here would be compiled */
>>  #endif
>>
>> No problem was faced on spice-gtk till now because either USE_FOO is not
>> defined or defined as 1, but let's try to have it standardized.
>
>
> I won't send a v3 for now, but this patch must be squashed to this
> commit before pushing:
>
> diff --git a/src/channel-usbredir.c b/src/channel-usbredir.c
> index 7948e59..11abeb0 100644
> --- a/src/channel-usbredir.c
> +++ b/src/channel-usbredir.c
> @@ -327,7 +327,7 @@ void spice_usbredir_channel_connect_device_async(
>  {
>      SpiceUsbredirChannelPrivate *priv = channel->priv;
>      GTask *task;
> -#if ! USE_POLKIT
> +#ifndef USE_POLKIT
>      GError *err = NULL;
>  #endif
>

And also:

diff --git a/src/spice-client-glib-usb-acl-helper.c
b/src/spice-client-glib-usb-acl-helper.c
index bc09776..3c5de05 100644
--- a/src/spice-client-glib-usb-acl-helper.c
+++ b/src/spice-client-glib-usb-acl-helper.c
@@ -161,7 +161,7 @@ static void cleanup(void)
 }

 /* Not available in polkit < 0.101 */
-#if !HAVE_POLKIT_AUTHORIZATION_RESULT_GET_DISMISSED
+#ifndef HAVE_POLKIT_AUTHORIZATION_RESULT_GET_DISMISSED
 static gboolean
 polkit_authorization_result_get_dismissed(PolkitAuthorizationResult *result)
 {
@@ -296,7 +296,7 @@ static void stdin_read_complete(GObject *src,
GAsyncResult *res, gpointer data)
 }

 /* Fix for polkit 0.97 and later */
-#if !HAVE_POLKIT_AUTHORITY_GET_SYNC
+#ifndef HAVE_POLKIT_AUTHORITY_GET_SYNC
 static PolkitAuthority *
 polkit_authority_get_sync (GCancellable *cancellable, GError **error)
 {

>
>> ---
>>  src/channel-smartcard.c  |  2 +-
>>  src/channel-usbredir.c   | 14 +++++++-------
>>  src/spice-channel.c      | 20 ++++++++++----------
>>  src/spice-gtk-session.c  |  4 ++--
>>  src/spice-widget.c       |  2 +-
>>  src/usb-device-manager.c |  2 +-
>>  6 files changed, 22 insertions(+), 22 deletions(-)
>>
>> diff --git a/src/channel-smartcard.c b/src/channel-smartcard.c
>> index e2e1aad..7f3306e 100644
>> --- a/src/channel-smartcard.c
>> +++ b/src/channel-smartcard.c
>> @@ -244,7 +244,7 @@ smartcard_message_free(SpiceSmartcardChannelMessage *message)
>>      g_free(message);
>>  }
>>
>> -#if USE_SMARTCARD
>> +#ifdef USE_SMARTCARD
>>  static gboolean is_attached_to_server(VReader *reader)
>>  {
>>      return (vreader_get_id(reader) != (vreader_id_t)-1);
>> diff --git a/src/channel-usbredir.c b/src/channel-usbredir.c
>> index 0be72ba..2206efc 100644
>> --- a/src/channel-usbredir.c
>> +++ b/src/channel-usbredir.c
>> @@ -24,7 +24,7 @@
>>  #ifdef USE_USBREDIR
>>  #include <glib/gi18n.h>
>>  #include <usbredirhost.h>
>> -#if USE_POLKIT
>> +#ifdef USE_POLKIT
>>  #include "usb-acl-helper.h"
>>  #endif
>>  #include "channel-usbredir-priv.h"
>> @@ -57,7 +57,7 @@
>>
>>  enum SpiceUsbredirChannelState {
>>      STATE_DISCONNECTED,
>> -#if USE_POLKIT
>> +#ifdef USE_POLKIT
>>      STATE_WAITING_FOR_ACL_HELPER,
>>  #endif
>>      STATE_CONNECTED,
>> @@ -75,7 +75,7 @@ struct _SpiceUsbredirChannelPrivate {
>>      const uint8_t *read_buf;
>>      int read_buf_size;
>>      enum SpiceUsbredirChannelState state;
>> -#if USE_POLKIT
>> +#ifdef USE_POLKIT
>>      GSimpleAsyncResult *result;
>>      SpiceUsbAclHelper *acl_helper;
>>  #endif
>> @@ -241,7 +241,7 @@ static gboolean spice_usbredir_channel_open_device(
>>      int rc, status;
>>
>>      g_return_val_if_fail(priv->state == STATE_DISCONNECTED
>> -#if USE_POLKIT
>> +#ifdef USE_POLKIT
>>                           || priv->state == STATE_WAITING_FOR_ACL_HELPER
>>  #endif
>>                           , FALSE);
>> @@ -275,7 +275,7 @@ static gboolean spice_usbredir_channel_open_device(
>>      return TRUE;
>>  }
>>
>> -#if USE_POLKIT
>> +#ifdef USE_POLKIT
>>  static void spice_usbredir_channel_open_acl_cb(
>>      GObject *gobject, GAsyncResult *acl_res, gpointer user_data)
>>  {
>> @@ -358,7 +358,7 @@ void spice_usbredir_channel_connect_device_async(
>>      priv->device = libusb_ref_device(device);
>>      priv->spice_device = g_boxed_copy(spice_usb_device_get_type(),
>>                                        spice_device);
>> -#if USE_POLKIT
>> +#ifdef USE_POLKIT
>>      priv->result = result;
>>      priv->state  = STATE_WAITING_FOR_ACL_HELPER;
>>      priv->acl_helper = spice_usb_acl_helper_new();
>> @@ -415,7 +415,7 @@ void spice_usbredir_channel_disconnect_device(SpiceUsbredirChannel *channel)
>>      case STATE_DISCONNECTED:
>>      case STATE_DISCONNECTING:
>>          break;
>> -#if USE_POLKIT
>> +#ifdef USE_POLKIT
>>      case STATE_WAITING_FOR_ACL_HELPER:
>>          priv->state = STATE_DISCONNECTING;
>>          /* We're still waiting for the acl helper -> cancel it */
>> diff --git a/src/spice-channel.c b/src/spice-channel.c
>> index ff85715..1941b1b 100644
>> --- a/src/spice-channel.c
>> +++ b/src/spice-channel.c
>> @@ -119,7 +119,7 @@ static void spice_channel_init(SpiceChannel *channel)
>>      c->remote_common_caps = g_array_new(FALSE, TRUE, sizeof(guint32));
>>      spice_channel_set_common_capability(channel, SPICE_COMMON_CAP_PROTOCOL_AUTH_SELECTION);
>>      spice_channel_set_common_capability(channel, SPICE_COMMON_CAP_MINI_HEADER);
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>      spice_channel_set_common_capability(channel, SPICE_COMMON_CAP_AUTH_SASL);
>>  #endif
>>      g_queue_init(&c->xmit_queue);
>> @@ -802,7 +802,7 @@ static void spice_channel_flush_wire(SpiceChannel *channel,
>>      }
>>  }
>>
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>  /*
>>   * Encode all buffered data, write all encrypted data out
>>   * to the wire
>> @@ -830,7 +830,7 @@ static void spice_channel_flush_sasl(SpiceChannel *channel, const void *data, si
>>  /* coroutine context */
>>  static void spice_channel_write(SpiceChannel *channel, const void *data, size_t len)
>>  {
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>      SpiceChannelPrivate *c = channel->priv;
>>
>>      if (c->sasl_conn)
>> @@ -932,7 +932,7 @@ reread:
>>      return ret;
>>  }
>>
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>  /*
>>   * Read at least 1 more byte of data out of the SASL decrypted
>>   * data buffer, into the internal read buffer
>> @@ -994,7 +994,7 @@ static int spice_channel_read(SpiceChannel *channel, void *data, size_t length)
>>      while (len > 0) {
>>          if (c->has_error) return 0; /* has_error is set by disconnect(), return no error */
>>
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>          if (c->sasl_conn)
>>              ret = spice_channel_read_sasl(channel, data, len);
>>          else
>> @@ -1268,7 +1268,7 @@ error:
>>      return FALSE;
>>  }
>>
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>  /*
>>   * NB, keep in sync with similar method in spice/server/reds.c
>>   */
>> @@ -1795,7 +1795,7 @@ static gboolean spice_channel_recv_link_msg(SpiceChannel *channel)
>>      } else {
>>          SpiceLinkAuthMechanism auth = { 0, };
>>
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>          if (spice_channel_test_common_capability(channel, SPICE_COMMON_CAP_AUTH_SASL)) {
>>              CHANNEL_DEBUG(channel, "Choosing SASL mechanism");
>>              auth.auth_mechanism = SPICE_COMMON_CAP_AUTH_SASL;
>> @@ -2167,7 +2167,7 @@ static void spice_channel_iterate_read(SpiceChannel *channel)
>>      ) { do
>>              spice_channel_recv_msg(channel,
>>                                     (handler_msg_in)SPICE_CHANNEL_GET_CLASS(channel)->handle_msg, NULL);
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>              /* flush the sasl buffer too */
>>          while (c->sasl_decoded != NULL);
>>  #else
>> @@ -2632,7 +2632,7 @@ static void channel_reset(SpiceChannel *channel, gboolean migrating)
>>          c->connect_delayed_id = 0;
>>      }
>>
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>      if (c->sasl_conn) {
>>          sasl_dispose(&c->sasl_conn);
>>          c->sasl_conn = NULL;
>> @@ -2906,7 +2906,7 @@ void spice_channel_swap(SpiceChannel *channel, SpiceChannel *swap, gboolean swap
>>      SWAP(common_caps);
>>      SWAP(remote_caps);
>>      SWAP(remote_common_caps);
>> -#if HAVE_SASL
>> +#ifdef HAVE_SASL
>>      SWAP(sasl_conn);
>>      SWAP(sasl_decoded);
>>      SWAP(sasl_decoded_length);
>> diff --git a/src/spice-gtk-session.c b/src/spice-gtk-session.c
>> index 9ea28c4..4201ee0 100644
>> --- a/src/spice-gtk-session.c
>> +++ b/src/spice-gtk-session.c
>> @@ -19,7 +19,7 @@
>>
>>  #include <glib.h>
>>
>> -#if HAVE_X11_XKBLIB_H
>> +#ifdef HAVE_X11_XKBLIB_H
>>  #include <X11/XKBlib.h>
>>  #include <gdk/gdkx.h>
>>  #endif
>> @@ -139,7 +139,7 @@ static guint32 get_keyboard_lock_modifiers(void)
>>          modifiers |= SPICE_INPUTS_SCROLL_LOCK;
>>      }
>>  #else
>> -#if HAVE_X11_XKBLIB_H
>> +#ifdef HAVE_X11_XKBLIB_H
>>      Display *x_display = NULL;
>>      XKeyboardState keyboard_state;
>>
>> diff --git a/src/spice-widget.c b/src/spice-widget.c
>> index a1a68a6..19753e7 100644
>> --- a/src/spice-widget.c
>> +++ b/src/spice-widget.c
>> @@ -20,7 +20,7 @@
>>  #include <math.h>
>>  #include <glib.h>
>>
>> -#if HAVE_X11_XKBLIB_H
>> +#ifdef HAVE_X11_XKBLIB_H
>>  #include <X11/XKBlib.h>
>>  #include <gdk/gdkx.h>
>>  #endif
>> diff --git a/src/usb-device-manager.c b/src/usb-device-manager.c
>> index 647edd0..6e12602 100644
>> --- a/src/usb-device-manager.c
>> +++ b/src/usb-device-manager.c
>> @@ -393,7 +393,7 @@ static void spice_usb_device_manager_get_property(GObject     *gobject,
>>          break;
>>      case PROP_FREE_CHANNELS: {
>>          int free_channels = 0;
>> -#if USE_USBREDIR
>> +#ifdef USE_USBREDIR
>>          int i;
>>          for (i = 0; i < priv->channels->len; i++) {
>>              SpiceUsbredirChannel *channel = g_ptr_array_index(priv->channels, i);
>> --
>> 2.5.0
>>
>> _______________________________________________
>> Spice-devel mailing list
>> Spice-devel@xxxxxxxxxxxxxxxxxxxxx
>> https://lists.freedesktop.org/mailman/listinfo/spice-devel
>
>
>
> --
> Fabiano Fidêncio



-- 
Fabiano Fidêncio
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Spice-devel@xxxxxxxxxxxxxxxxxxxxx
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