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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: |
Tue, 8 Feb 2011 20:01:27 +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 ed2cdfa..00155fb 100644
--- a/vl.c
+++ b/vl.c
@@ -1158,6 +1158,7 @@ static void nographic_update(void *opaque)
struct vm_change_state_entry {
VMChangeStateHandler *cb;
void *opaque;
+ int deleted;
QLIST_ENTRY (vm_change_state_entry) entries;
};
@@ -1178,8 +1179,7 @@ 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)
@@ -1188,8 +1188,13 @@ 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 07/19] Introduce fault tolerant VM transaction QEMUFile and ft_mode., (continued)
- [Qemu-devel] [PATCH 07/19] Introduce fault tolerant VM transaction QEMUFile and ft_mode., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 09/19] Introduce event-tap., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 16/19] migration: introduce migrate_ft_trans_{put, get}_ready(), and modify migrate_fd_put_ready() when ft_mode is on., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 08/19] savevm: introduce util functions to control ft_trans_file from savevm layer., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 14/19] block: insert event-tap to bdrv_aio_writev(), bdrv_aio_flush() and bdrv_flush()., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 18/19] Introduce -k option to enable FT migration mode (Kemari)., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 02/19] Introduce read() to FdMigrationState., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 03/19] Introduce skip_header parameter to qemu_loadvm_state()., Yoshiaki Tamura, 2011/02/08
- [Qemu-devel] [PATCH 05/19] vl.c: add deleted flag for deleting the handler.,
Yoshiaki Tamura <=