1 #ifndef foointernalhfoo
2 #define foointernalhfoo
7 This file is part of PulseAudio.
9 Copyright 2004-2006 Lennart Poettering
10 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
12 PulseAudio is free software; you can redistribute it and/or modify
13 it under the terms of the GNU Lesser General Public License as published
14 by the Free Software Foundation; either version 2 of the License,
15 or (at your option) any later version.
17 PulseAudio is distributed in the hope that it will be useful, but
18 WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public License
23 along with PulseAudio; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 #include <pulse/mainloop-api.h>
29 #include <pulse/context.h>
30 #include <pulse/stream.h>
31 #include <pulse/operation.h>
32 #include <pulse/subscribe.h>
34 #include <pulsecore/socket-client.h>
35 #include <pulsecore/pstream.h>
36 #include <pulsecore/pdispatch.h>
37 #include <pulsecore/dynarray.h>
38 #include <pulsecore/llist.h>
39 #include <pulsecore/native-common.h>
40 #include <pulsecore/strlist.h>
41 #include <pulsecore/mcalign.h>
42 #include <pulsecore/memblockq.h>
43 #include <pulsecore/hashmap.h>
44 #include <pulsecore/refcnt.h>
46 #include "client-conf.h"
48 #define DEFAULT_TIMEOUT (30)
54 pa_mainloop_api
* mainloop
;
56 pa_socket_client
*client
;
58 pa_pdispatch
*pdispatch
;
60 pa_dynarray
*record_streams
, *playback_streams
;
61 PA_LLIST_HEAD(pa_stream
, streams
);
62 PA_LLIST_HEAD(pa_operation
, operations
);
68 pa_context_state_t state
;
70 pa_context_notify_cb_t state_callback
;
73 pa_context_subscribe_cb_t subscribe_callback
;
74 void *subscribe_userdata
;
80 int autospawn_lock_fd
;
81 pa_spawn_api spawn_api
;
83 pa_strlist
*server_list
;
90 #define PA_MAX_WRITE_INDEX_CORRECTIONS 10
92 typedef struct pa_index_correction
{
96 int absolute
, corrupt
;
97 } pa_index_correction
;
102 pa_mainloop_api
*mainloop
;
103 PA_LLIST_FIELDS(pa_stream
);
106 pa_bool_t manual_buffer_attr
;
107 pa_buffer_attr buffer_attr
;
108 pa_sample_spec sample_spec
;
109 pa_channel_map channel_map
;
110 pa_stream_flags_t flags
;
114 uint32_t stream_index
;
115 pa_stream_direction_t direction
;
116 pa_stream_state_t state
;
117 pa_bool_t buffer_attr_not_ready
, timing_info_not_ready
;
119 uint32_t requested_bytes
;
121 uint32_t device_index
;
125 pa_memchunk peek_memchunk
;
127 pa_memblockq
*record_memblockq
;
131 /* Store latest latency info */
132 pa_timing_info timing_info
;
133 int timing_info_valid
;
135 /* Use to make sure that time advances monotonically */
136 pa_usec_t previous_time
;
138 /* time updates with tags older than these are invalid */
139 uint32_t write_index_not_before
;
140 uint32_t read_index_not_before
;
142 /* Data about individual timing update correctoins */
143 pa_index_correction write_index_corrections
[PA_MAX_WRITE_INDEX_CORRECTIONS
];
144 int current_write_index_correction
;
146 /* Latency interpolation stuff */
147 pa_time_event
*auto_timing_update_event
;
148 int auto_timing_update_requested
;
150 pa_usec_t cached_time
;
151 int cached_time_valid
;
154 pa_stream_notify_cb_t state_callback
;
155 void *state_userdata
;
156 pa_stream_request_cb_t read_callback
;
158 pa_stream_request_cb_t write_callback
;
159 void *write_userdata
;
160 pa_stream_notify_cb_t overflow_callback
;
161 void *overflow_userdata
;
162 pa_stream_notify_cb_t underflow_callback
;
163 void *underflow_userdata
;
164 pa_stream_notify_cb_t latency_update_callback
;
165 void *latency_update_userdata
;
166 pa_stream_notify_cb_t moved_callback
;
167 void *moved_userdata
;
168 pa_stream_notify_cb_t suspended_callback
;
169 void *suspended_userdata
;
172 typedef void (*pa_operation_cb_t
)(void);
174 struct pa_operation
{
180 PA_LLIST_FIELDS(pa_operation
);
182 pa_operation_state_t state
;
184 pa_operation_cb_t callback
;
186 void *private; /* some operations might need this */
189 void pa_command_request(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
190 void pa_command_stream_killed(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
191 void pa_command_subscribe_event(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
192 void pa_command_overflow_or_underflow(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
193 void pa_command_stream_suspended(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
194 void pa_command_stream_moved(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
196 pa_operation
*pa_operation_new(pa_context
*c
, pa_stream
*s
, pa_operation_cb_t callback
, void *userdata
);
197 void pa_operation_done(pa_operation
*o
);
199 void pa_create_stream_callback(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
200 void pa_stream_disconnect_callback(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
201 void pa_context_simple_ack_callback(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
202 void pa_stream_simple_ack_callback(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
);
204 void pa_context_fail(pa_context
*c
, int error
);
205 int pa_context_set_error(pa_context
*c
, int error
);
206 void pa_context_set_state(pa_context
*c
, pa_context_state_t st
);
207 int pa_context_handle_error(pa_context
*c
, uint32_t command
, pa_tagstruct
*t
);
208 pa_operation
* pa_context_send_simple_command(pa_context
*c
, uint32_t command
, void (*internal_callback
)(pa_pdispatch
*pd
, uint32_t command
, uint32_t tag
, pa_tagstruct
*t
, void *userdata
), void (*cb
)(void), void *userdata
);
210 void pa_stream_set_state(pa_stream
*s
, pa_stream_state_t st
);
212 pa_tagstruct
*pa_tagstruct_command(pa_context
*c
, uint32_t command
, uint32_t *tag
);
214 #define PA_CHECK_VALIDITY(context, expression, error) do { \
216 return -pa_context_set_error((context), (error)); \
220 #define PA_CHECK_VALIDITY_RETURN_ANY(context, expression, error, value) do { \
221 if (!(expression)) { \
222 pa_context_set_error((context), (error)); \
227 #define PA_CHECK_VALIDITY_RETURN_NULL(context, expression, error) PA_CHECK_VALIDITY_RETURN_ANY(context, expression, error, NULL)