35     pa_operation *o;  in pa_operation_new()  local
38     if (!(o = pa_flist_pop(PA_STATIC_FLIST_GET(operations))))  in pa_operation_new()
39         o = pa_xnew(pa_operation, 1);  in pa_operation_new()
41     pa_zero(*o);  in pa_operation_new()
43     PA_REFCNT_INIT(o);  in pa_operation_new()
44     o->context = c;  in pa_operation_new()
45     o->stream = s;  in pa_operation_new()
47     o->state = PA_OPERATION_RUNNING;  in pa_operation_new()
48     o->callback = cb;  in pa_operation_new()
49     o->userdata = userdata;  in pa_operation_new()
52     PA_LLIST_PREPEND(pa_operation, c->operations, o);  in pa_operation_new()
53     pa_operation_ref(o);  in pa_operation_new()
55     return o;  in pa_operation_new()
58 pa_operation *pa_operation_ref(pa_operation *o) {  in pa_operation_ref()  argument
59     pa_assert(o);  in pa_operation_ref()
60     pa_assert(PA_REFCNT_VALUE(o) >= 1);  in pa_operation_ref()
62     PA_REFCNT_INC(o);  in pa_operation_ref()
63     return o;  in pa_operation_ref()
66 void pa_operation_unref(pa_operation *o) {  in pa_operation_unref()  argument
67     pa_assert(o);  in pa_operation_unref()
68     pa_assert(PA_REFCNT_VALUE(o) >= 1);  in pa_operation_unref()
70     if (PA_REFCNT_DEC(o) <= 0) {  in pa_operation_unref()
71         pa_assert(!o->context);  in pa_operation_unref()
72         pa_assert(!o->stream);  in pa_operation_unref()
74         if (pa_flist_push(PA_STATIC_FLIST_GET(operations), o) < 0)  in pa_operation_unref()
75             pa_xfree(o);  in pa_operation_unref()
79 static void operation_unlink(pa_operation *o) {  in operation_unlink()  argument
80     pa_assert(o);  in operation_unlink()
82     if (o->context) {  in operation_unlink()
83         pa_assert(PA_REFCNT_VALUE(o) >= 2);  in operation_unlink()
85         PA_LLIST_REMOVE(pa_operation, o->context->operations, o);  in operation_unlink()
86         pa_operation_unref(o);  in operation_unlink()
88         o->context = NULL;  in operation_unlink()
91     o->stream = NULL;  in operation_unlink()
92     o->callback = NULL;  in operation_unlink()
93     o->userdata = NULL;  in operation_unlink()
94     o->state_callback = NULL;  in operation_unlink()
95     o->state_userdata = NULL;  in operation_unlink()
98 static void operation_set_state(pa_operation *o, pa_operation_state_t st) {  in operation_set_state()  argument
99     pa_assert(o);  in operation_set_state()
100     pa_assert(PA_REFCNT_VALUE(o) >= 1);  in operation_set_state()
102     if (st == o->state)  in operation_set_state()
105     if ((o->state == PA_OPERATION_DONE) || (o->state == PA_OPERATION_CANCELED))  in operation_set_state()
108     pa_operation_ref(o);  in operation_set_state()
110     o->state = st;  in operation_set_state()
112     if (o->state_callback)  in operation_set_state()
113         o->state_callback(o, o->state_userdata);  in operation_set_state()
115     if ((o->state == PA_OPERATION_DONE) || (o->state == PA_OPERATION_CANCELED))  in operation_set_state()
116         operation_unlink(o);  in operation_set_state()
118     pa_operation_unref(o);  in operation_set_state()
121 void pa_operation_cancel(pa_operation *o) {  in pa_operation_cancel()  argument
122     pa_assert(o);  in pa_operation_cancel()
123     pa_assert(PA_REFCNT_VALUE(o) >= 1);  in pa_operation_cancel()
125     operation_set_state(o, PA_OPERATION_CANCELED);  in pa_operation_cancel()
128 void pa_operation_done(pa_operation *o) {  in pa_operation_done()  argument
129     pa_assert(o);  in pa_operation_done()
130     pa_assert(PA_REFCNT_VALUE(o) >= 1);  in pa_operation_done()
132     operation_set_state(o, PA_OPERATION_DONE);  in pa_operation_done()
135 pa_operation_state_t pa_operation_get_state(const pa_operation *o) {  in pa_operation_get_state()  argument
136     pa_assert(o);  in pa_operation_get_state()
137     pa_assert(PA_REFCNT_VALUE(o) >= 1);  in pa_operation_get_state()
139     return o->state;  in pa_operation_get_state()
142 void pa_operation_set_state_callback(pa_operation *o, pa_operation_notify_cb_t cb, void *userdata) {  in pa_operation_set_state_callback()  argument
143     pa_assert(o);  in pa_operation_set_state_callback()
144     pa_assert(PA_REFCNT_VALUE(o) >= 1);  in pa_operation_set_state_callback()
149     if (o->state == PA_OPERATION_DONE || o->state == PA_OPERATION_CANCELED)  in pa_operation_set_state_callback()
152     o->state_callback = cb;  in pa_operation_set_state_callback()
153     o->state_userdata = userdata;  in pa_operation_set_state_callback()