6e1db57b2a
The only way for chardev drivers to communicate an error was to return a NULL pointer, which resulted in an error message that said _that_ something went wrong, but not _why_. This patch changes the interface to return 0/-errno and updates qemu_chr_open_opts to use strerror to display a more helpful error message. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
66 lines
2 KiB
C
66 lines
2 KiB
C
/*
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* Copyright (C) 2010 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 or
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* (at your option) version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QEMU_SPICE_H
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#define QEMU_SPICE_H
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#ifdef CONFIG_SPICE
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#include <spice.h>
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#include "qemu-option.h"
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#include "qemu-config.h"
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#include "qemu-char.h"
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extern int using_spice;
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void qemu_spice_init(void);
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void qemu_spice_input_init(void);
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void qemu_spice_audio_init(void);
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void qemu_spice_display_init(DisplayState *ds);
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int qemu_spice_add_interface(SpiceBaseInstance *sin);
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int qemu_spice_set_passwd(const char *passwd,
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bool fail_if_connected, bool disconnect_if_connected);
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int qemu_spice_set_pw_expire(time_t expires);
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int qemu_spice_migrate_info(const char *hostname, int port, int tls_port,
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const char *subject);
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void do_info_spice_print(Monitor *mon, const QObject *data);
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void do_info_spice(Monitor *mon, QObject **ret_data);
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int qemu_chr_open_spice(QemuOpts *opts, CharDriverState **_chr);
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#else /* CONFIG_SPICE */
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#define using_spice 0
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static inline int qemu_spice_set_passwd(const char *passwd,
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bool fail_if_connected,
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bool disconnect_if_connected)
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{
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return -1;
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}
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static inline int qemu_spice_set_pw_expire(time_t expires)
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{
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return -1;
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}
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static inline int qemu_spice_migrate_info(const char *h, int p, int t, const char *s)
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{ return -1; }
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#endif /* CONFIG_SPICE */
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#endif /* QEMU_SPICE_H */
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