[Qemu-devel] [PATCH 05/18] vl.c: add deleted flag for deleting the handler.
From: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp 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 tamura.yoshi...@lab.ntt.co.jp Signed-off-by: OHMURA Kei ohmura@lab.ntt.co.jp --- vl.c | 15 ++- 1 files changed, 10 insertions(+), 5 deletions(-) diff --git a/vl.c b/vl.c index 68c3b53..a18792d 100644 --- a/vl.c +++ b/vl.c @@ -1096,6 +1096,7 @@ static void nographic_update(void *opaque) struct vm_change_state_entry { VMChangeStateHandler *cb; void *opaque; +int deleted; QLIST_ENTRY (vm_change_state_entry) entries; }; @@ -1116,18 +1117,22 @@ 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) { -VMChangeStateEntry *e; +VMChangeStateEntry *e, *ne; 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_SAFE(e, vm_change_state_head, entries, ne) { +if (e-deleted) { +QLIST_REMOVE(e, entries); +qemu_free(e); +} else { +e-cb(e-opaque, running, reason); +} } } -- 1.7.0.2
[Qemu-devel] [PATCH 05/18] vl.c: add deleted flag for deleting the handler.
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 tamura.yoshi...@lab.ntt.co.jp --- vl.c | 15 ++- 1 files changed, 10 insertions(+), 5 deletions(-) diff --git a/vl.c b/vl.c index dbb927d..483e2e3 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; }; @@ -1178,18 +1179,22 @@ 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) { -VMChangeStateEntry *e; +VMChangeStateEntry *e, *ne; 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_SAFE(e, vm_change_state_head, entries, ne) { +if (e-deleted) { +QLIST_REMOVE(e, entries); +qemu_free(e); +} else { +e-cb(e-opaque, running, reason); +} } } -- 1.7.1.2
[Qemu-devel] [PATCH 05/18] vl.c: add deleted flag for deleting the handler.
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 tamura.yoshi...@lab.ntt.co.jp --- vl.c | 13 + 1 files changed, 9 insertions(+), 4 deletions(-) diff --git a/vl.c b/vl.c index b436952..4e263c3 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 05/18] vl.c: add deleted flag for deleting the handler.
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 tamura.yoshi...@lab.ntt.co.jp --- vl.c | 15 ++- 1 files changed, 10 insertions(+), 5 deletions(-) diff --git a/vl.c b/vl.c index b436952..0bda77d 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; }; @@ -1178,18 +1179,22 @@ 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) { -VMChangeStateEntry *e; +VMChangeStateEntry *e, *ne; 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_SAFE(e, vm_change_state_head, entries, ne) { +if (e-deleted) { +QLIST_REMOVE(e, entries); +qemu_free(e); +} else { +e-cb(e-opaque, running, reason); +} } } -- 1.7.1.2
[Qemu-devel] [PATCH 05/18] vl.c: add deleted flag for deleting the handler.
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 tamura.yoshi...@lab.ntt.co.jp --- 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