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[Qemu-devel] [PATCH 05/19] vl.c: add deleted flag for deleting the handl
From: |
Yoshiaki Tamura |
Subject: |
[Qemu-devel] [PATCH 05/19] vl.c: add deleted flag for deleting the handler. |
Date: |
Sat, 15 Jan 2011 02:33:14 +0900 |
Make deleting handlers robust against deletion of any elements in a
handler by using a deleted flag like in file descriptors.
Signed-off-by: Yoshiaki Tamura <address@hidden>
---
vl.c | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/vl.c b/vl.c
index 0292184..8bbb785 100644
--- a/vl.c
+++ b/vl.c
@@ -1140,6 +1140,7 @@ static void nographic_update(void *opaque)
struct vm_change_state_entry {
VMChangeStateHandler *cb;
void *opaque;
+ int deleted;
QLIST_ENTRY (vm_change_state_entry) entries;
};
@@ -1160,8 +1161,7 @@ VMChangeStateEntry
*qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
{
- QLIST_REMOVE (e, entries);
- qemu_free (e);
+ e->deleted = 1;
}
void vm_state_notify(int running, int reason)
@@ -1170,8 +1170,13 @@ void vm_state_notify(int running, int reason)
trace_vm_state_notify(running, reason);
- for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
- e->cb(e->opaque, running, reason);
+ QLIST_FOREACH(e, &vm_change_state_head, entries) {
+ if (e->deleted) {
+ QLIST_REMOVE(e, entries);
+ qemu_free(e);
+ } else {
+ e->cb(e->opaque, running, reason);
+ }
}
}
--
1.7.1.2
- [Qemu-devel] [PATCH 18/19] Introduce -k option to enable FT migration mode (Kemari)., (continued)
- [Qemu-devel] [PATCH 18/19] Introduce -k option to enable FT migration mode (Kemari)., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 11/19] ioport: insert event_tap_ioport() to ioport_write()., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 09/19] Introduce event-tap., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 14/19] block: insert event-tap to bdrv_aio_writev() and bdrv_aio_flush()., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 13/19] net: insert event-tap to qemu_send_packet() and qemu_sendv_packet_async()., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 17/19] migration-tcp: modify tcp_accept_incoming_migration() to handle ft_mode, and add a hack not to close fd when ft_mode is enabled., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 19/19] migration: add a parser to accept FT migration incoming mode., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 08/19] savevm: introduce util functions to control ft_trans_file from savevm layer., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 15/19] savevm: introduce qemu_savevm_trans_{begin, commit}., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 01/19] Make QEMUFile buf expandable, and introduce qemu_realloc_buffer() and qemu_clear_buffer()., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 05/19] vl.c: add deleted flag for deleting the handler.,
Yoshiaki Tamura <=
- [Qemu-devel] [PATCH 02/19] Introduce read() to FdMigrationState., Yoshiaki Tamura, 2011/01/14
- [Qemu-devel] [PATCH 07/19] Introduce fault tolerant VM transaction QEMUFile and ft_mode., Yoshiaki Tamura, 2011/01/14