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author | Stefan Hajnoczi <stefanha@redhat.com> | 2014-02-27 11:48:42 +0100 |
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committer | Stefan Hajnoczi <stefanha@redhat.com> | 2014-03-13 14:42:24 +0100 |
commit | dc3dd0d2bed6edf3b60041f31200c674348168e9 (patch) | |
tree | 5b390cd8da5ebcf82d83844d858c6fd8f4e08d9d /iothread.c | |
parent | 88eb7c29e4320597d2f246adf731f0aac97cfbcc (diff) | |
download | qemu-dc3dd0d2bed6edf3b60041f31200c674348168e9.zip qemu-dc3dd0d2bed6edf3b60041f31200c674348168e9.tar.gz qemu-dc3dd0d2bed6edf3b60041f31200c674348168e9.tar.bz2 |
qmp: add query-iothreads command
The "query-iothreads" command returns a list of information about
iothreads. See the patch for API documentation.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'iothread.c')
-rw-r--r-- | iothread.c | 36 |
1 files changed, 36 insertions, 0 deletions
@@ -17,6 +17,7 @@ #include "qemu/thread.h" #include "block/aio.h" #include "sysemu/iothread.h" +#include "qmp-commands.h" #define IOTHREADS_PATH "/objects" @@ -140,3 +141,38 @@ AioContext *iothread_get_aio_context(IOThread *iothread) { return iothread->ctx; } + +static int query_one_iothread(Object *object, void *opaque) +{ + IOThreadInfoList ***prev = opaque; + IOThreadInfoList *elem; + IOThreadInfo *info; + IOThread *iothread; + + iothread = (IOThread *)object_dynamic_cast(object, TYPE_IOTHREAD); + if (!iothread) { + return 0; + } + + info = g_new0(IOThreadInfo, 1); + info->id = iothread_get_id(iothread); + info->thread_id = iothread->thread_id; + + elem = g_new0(IOThreadInfoList, 1); + elem->value = info; + elem->next = NULL; + + **prev = elem; + *prev = &elem->next; + return 0; +} + +IOThreadInfoList *qmp_query_iothreads(Error **errp) +{ + IOThreadInfoList *head = NULL; + IOThreadInfoList **prev = &head; + Object *container = container_get(object_get_root(), IOTHREADS_PATH); + + object_child_foreach(container, query_one_iothread, &prev); + return head; +} |