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Add unregister_savevm() (Mark McLoughlin)

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Currently there's no way to unregister a savevm callback, so
e.g. if a NIC is hot-unplugged and a savevm is issued, we'll
segfault.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7148 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-04-17 17:10:59 +00:00
parent ad06714858
commit 41bd13afda
2 changed files with 18 additions and 0 deletions
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2
hw/hw.h
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@ -239,6 +239,8 @@ int register_savevm_live(const char *idstr,
LoadStateHandler *load_state, LoadStateHandler *load_state,
void *opaque); void *opaque);
void unregister_savevm(const char *idstr, void *opaque);
typedef void QEMUResetHandler(void *opaque); typedef void QEMUResetHandler(void *opaque);
void qemu_register_reset(QEMUResetHandler *func, void *opaque); void qemu_register_reset(QEMUResetHandler *func, void *opaque);

16
savevm.c
View file

@ -647,6 +647,22 @@ int register_savevm(const char *idstr,
NULL, save_state, load_state, opaque); NULL, save_state, load_state, opaque);
} }
void unregister_savevm(const char *idstr, void *opaque)
{
SaveStateEntry **pse;
pse = &first_se;
while (*pse != NULL) {
if (strcmp((*pse)->idstr, idstr) == 0 && (*pse)->opaque == opaque) {
SaveStateEntry *next = (*pse)->next;
qemu_free(*pse);
*pse = next;
continue;
}
pse = &(*pse)->next;
}
}
#define QEMU_VM_FILE_MAGIC 0x5145564d #define QEMU_VM_FILE_MAGIC 0x5145564d
#define QEMU_VM_FILE_VERSION_COMPAT 0x00000002 #define QEMU_VM_FILE_VERSION_COMPAT 0x00000002
#define QEMU_VM_FILE_VERSION 0x00000003 #define QEMU_VM_FILE_VERSION 0x00000003