1 | /* |
2 | * Event loop thread |
3 | * |
4 | * Copyright Red Hat Inc., 2013 |
5 | * |
6 | * Authors: |
7 | * Stefan Hajnoczi <stefanha@redhat.com> |
8 | * |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
10 | * See the COPYING file in the top-level directory. |
11 | * |
12 | */ |
13 | |
14 | #ifndef IOTHREAD_H |
15 | #define IOTHREAD_H |
16 | |
17 | #include "block/aio.h" |
18 | #include "qemu/thread.h" |
19 | #include "qom/object.h" |
20 | |
21 | #define TYPE_IOTHREAD "iothread" |
22 | |
23 | typedef struct { |
24 | Object parent_obj; |
25 | |
26 | QemuThread thread; |
27 | AioContext *ctx; |
28 | bool run_gcontext; /* whether we should run gcontext */ |
29 | GMainContext *worker_context; |
30 | GMainLoop *main_loop; |
31 | QemuSemaphore init_done_sem; /* is thread init done? */ |
32 | bool stopping; /* has iothread_stop() been called? */ |
33 | bool running; /* should iothread_run() continue? */ |
34 | int thread_id; |
35 | |
36 | /* AioContext poll parameters */ |
37 | int64_t poll_max_ns; |
38 | int64_t poll_grow; |
39 | int64_t poll_shrink; |
40 | } IOThread; |
41 | |
42 | #define IOTHREAD(obj) \ |
43 | OBJECT_CHECK(IOThread, obj, TYPE_IOTHREAD) |
44 | |
45 | char *iothread_get_id(IOThread *iothread); |
46 | IOThread *iothread_by_id(const char *id); |
47 | AioContext *iothread_get_aio_context(IOThread *iothread); |
48 | GMainContext *iothread_get_g_main_context(IOThread *iothread); |
49 | |
50 | /* |
51 | * Helpers used to allocate iothreads for internal use. These |
52 | * iothreads will not be seen by monitor clients when query using |
53 | * "query-iothreads". |
54 | */ |
55 | IOThread *iothread_create(const char *id, Error **errp); |
56 | void iothread_stop(IOThread *iothread); |
57 | void iothread_destroy(IOThread *iothread); |
58 | |
59 | #endif /* IOTHREAD_H */ |
60 | |