We want to poll and handle chardev in another thread other than main loop. But qemu_chr_add_handlers() can only work for global default context other than thread default context. So we use g_source_attach(xx, g_main_context_get_thread_default()) replace g_source_attach(xx, NULL) to attach g_source. Comments from jason.
Cc: Daniel P . Berrange <berra...@redhat.com> Cc: Paolo Bonzini <pbonz...@redhat.com> Signed-off-by: Zhang Chen <zhangchen.f...@cn.fujitsu.com> Signed-off-by: Jason Wang <jasow...@redhat.com> --- io/channel.c | 2 +- qemu-char.c | 6 +++--- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/io/channel.c b/io/channel.c index 692eb17..cd25677 100644 --- a/io/channel.c +++ b/io/channel.c @@ -146,7 +146,7 @@ guint qio_channel_add_watch(QIOChannel *ioc, g_source_set_callback(source, (GSourceFunc)func, user_data, notify); - id = g_source_attach(source, NULL); + id = g_source_attach(source, g_main_context_get_thread_default()); g_source_unref(source); return id; diff --git a/qemu-char.c b/qemu-char.c index b597ee1..ed7e1f7 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -860,7 +860,7 @@ static gboolean io_watch_poll_prepare(GSource *source, gint *timeout_) iwp->src = qio_channel_create_watch( iwp->ioc, G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL); g_source_set_callback(iwp->src, iwp->fd_read, iwp->opaque, NULL); - g_source_attach(iwp->src, NULL); + g_source_attach(iwp->src, g_main_context_get_thread_default()); } else { g_source_destroy(iwp->src); g_source_unref(iwp->src); @@ -919,7 +919,7 @@ static guint io_add_watch_poll(QIOChannel *ioc, iwp->fd_read = (GSourceFunc) fd_read; iwp->src = NULL; - tag = g_source_attach(&iwp->parent, NULL); + tag = g_source_attach(&iwp->parent, g_main_context_get_thread_default()); g_source_unref(&iwp->parent); return tag; } @@ -3983,7 +3983,7 @@ int qemu_chr_fe_add_watch(CharDriverState *s, GIOCondition cond, } g_source_set_callback(src, (GSourceFunc)func, user_data, NULL); - tag = g_source_attach(src, NULL); + tag = g_source_attach(src, g_main_context_get_thread_default()); g_source_unref(src); return tag; -- 2.7.4