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b19456dd0e
We use fd_in_tag to find a GSource, fd_in_tag is return value of
g_source_attach(GSource *source, GMainContext *context), the return
value is unique only in the same context, so we may get the same
values with different 'context' parameters.
It is no problem to find the right fd_in_tag by using
g_main_context_find_source_by_id(GMainContext *context, guint source_id)
while there is only one default main context.
But colo-compare tries to create/use its own context, and if we pass wrong
'context' parameter with right fd_in_tag, we will find a wrong GSource to handle.
We tried to fix the related codes in commit b43decb015,
but it didn't fix the bug completely, because we still have some codes didn't pass
*right* context parameter for remove_fd_in_watch().
Let's fix it by record the GSource directly instead of fd_in_tag.
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1492564532-91680-1-git-send-email-zhang.zhanghailiang@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
47 lines
1.8 KiB
C
47 lines
1.8 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef CHAR_IO_H
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#define CHAR_IO_H
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#include "qemu-common.h"
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#include "io/channel.h"
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#include "sysemu/char.h"
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/* Can only be used for read */
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GSource *io_add_watch_poll(Chardev *chr,
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QIOChannel *ioc,
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IOCanReadHandler *fd_can_read,
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QIOChannelFunc fd_read,
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gpointer user_data,
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GMainContext *context);
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void remove_fd_in_watch(Chardev *chr);
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int io_channel_send(QIOChannel *ioc, const void *buf, size_t len);
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int io_channel_send_full(QIOChannel *ioc, const void *buf, size_t len,
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int *fds, size_t nfds);
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#endif /* CHAR_IO_H */
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