add support for setting/getting default sink/source via native protocol

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@182 fefdeb5f-60dc-0310-8127-8f9354f1896f

doc/todo

@@ -12,9 +12,9 @@
 - add sample directory
 - add timing parameter to write callback of stream in client API
 - config file for command line arguments
-- vumeter
 - add FAQ
-- pa_context_connect_spawn() change function to fork+exec+waitpid-like function
+- pa_context_connect_spawn(): change function to fork+exec+waitpid-like function
+- on delete event in paman
 
 ** later ***
 - xmlrpc/http

polyp/namereg.c

@@ -35,6 +35,7 @@
 #include "source.h"
 #include "sink.h"
 #include "xmalloc.h"
+#include "subscribe.h"
 
 struct namereg_entry {
     enum pa_namereg_type type;
@@ -186,6 +187,13 @@ void pa_namereg_set_default(struct pa_core*c, const char *name, enum pa_namereg_
     s = type == PA_NAMEREG_SINK ? &c->default_sink_name : &c->default_source_name;
     assert(s);
 
+    if (!name && !*s)
+        return;
+    
+    if (name && *s && !strcmp(name, *s))
+        return;
+    
     pa_xfree(*s);
     *s = pa_xstrdup(name);
+    pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SERVER|PA_SUBSCRIPTION_EVENT_CHANGE, PA_INVALID_INDEX);
 }

polyp/native-common.h

@@ -66,17 +66,15 @@ enum {
     PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST,
     PA_COMMAND_GET_SAMPLE_INFO,
     PA_COMMAND_GET_SAMPLE_INFO_LIST,
-
     PA_COMMAND_SUBSCRIBE,
     PA_COMMAND_SUBSCRIBE_EVENT,
-
     PA_COMMAND_SET_SINK_VOLUME,
     PA_COMMAND_SET_SINK_INPUT_VOLUME,
-
     PA_COMMAND_CORK_PLAYBACK_STREAM,
     PA_COMMAND_FLUSH_PLAYBACK_STREAM,
     PA_COMMAND_TRIGGER_PLAYBACK_STREAM,
-    
+    PA_COMMAND_SET_DEFAULT_SINK,
+    PA_COMMAND_SET_DEFAULT_SOURCE,
     PA_COMMAND_MAX
 };
 

polyp/pdispatch.c

@@ -62,8 +62,20 @@ static const char *command_names[PA_COMMAND_MAX] = {
     [PA_COMMAND_PLAY_SAMPLE] = "PLAY_SAMPLE",
     [PA_COMMAND_REMOVE_SAMPLE] = "REMOVE_SAMPLE",
     [PA_COMMAND_GET_SERVER_INFO] = "GET_SERVER_INFO",
-    [PA_COMMAND_GET_SINK_INFO] = "GET_SET_INFO",
+    [PA_COMMAND_GET_SINK_INFO] = "GET_SINK_INFO",
+    [PA_COMMAND_GET_SINK_INFO_LIST] = "GET_SINK_INFO_LIST",
+    [PA_COMMAND_GET_SOURCE_INFO] = "GET_SOURCE_INFO",
+    [PA_COMMAND_GET_SOURCE_INFO_LIST] = "GET_SOURCE_INFO_LIST",
+    [PA_COMMAND_GET_MODULE_INFO] = "GET_MODULE_INFO",
+    [PA_COMMAND_GET_MODULE_INFO_LIST] = "GET_MODULE_INFO_LIST",
+    [PA_COMMAND_GET_CLIENT_INFO] = "GET_CLIENT_INFO",
+    [PA_COMMAND_GET_CLIENT_INFO_LIST] = "GET_CLIENT_INFO_LIST",
+    [PA_COMMAND_GET_SAMPLE_INFO] = "GET_SAMPLE_INFO",
+    [PA_COMMAND_GET_SAMPLE_INFO_LIST] = "GET_SAMPLE_INFO_LIST",
     [PA_COMMAND_GET_SINK_INPUT_INFO] = "GET_SINK_INPUT_INFO",
+    [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = "GET_SINK_INPUT_INFO_LIST",
+    [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = "GET_SOURCE_OUTPUT_INFO",
+    [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = "GET_SOURCE_OUTPUT_INFO_LIST",
     [PA_COMMAND_SUBSCRIBE] = "SUBSCRIBE",
     [PA_COMMAND_SUBSCRIBE_EVENT] = "SUBSCRIBE_EVENT",
     [PA_COMMAND_SET_SINK_VOLUME] = "SET_SINK_VOLUME",
@@ -71,7 +83,6 @@ static const char *command_names[PA_COMMAND_MAX] = {
     [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = "TRIGGER_PLAYBACK_STREAM",
     [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = "FLUSH_PLAYBACK_STREAM",
     [PA_COMMAND_CORK_PLAYBACK_STREAM] = "CORK_PLAYBACK_STREAM",
-    
 };
 
 #endif
@@ -174,7 +185,14 @@ int pa_pdispatch_run(struct pa_pdispatch *pd, struct pa_packet*packet, void *use
         goto finish;
 
 #ifdef DEBUG_OPCODES
-    pa_log(__FILE__": Recieved opcode <%s>\n", command_names[command]);
+{
+    char t[256];
+    char const *p;
+    if (!(p = command_names[command]))
+        snprintf((char*) (p = t), sizeof(t), "%u", command);
+        
+    pa_log(__FILE__": Recieved opcode <%s>\n", p);
+}
 #endif
 
     if (command == PA_COMMAND_ERROR || command == PA_COMMAND_REPLY) {

polyp/polypaudio.pa

@@ -22,7 +22,7 @@
 
 #load module-alsa-sink
 #load module-alsa-source device=plughw:1,0
-#load module-oss device="/dev/dsp" sink_name=output source_name=input
+load module-oss device="/dev/dsp" sink_name=output source_name=input record=0
 #load module-oss-mmap device="/dev/dsp" sink_name=output source_name=input
 #load module-pipe-sink
 
@@ -46,8 +46,8 @@ load module-native-protocol-unix
 load module-cli
 
 # Make some devices default
-sink_default output
-source_default input
+#isink_default output
+#source_default input
 
 .nofail
 
@@ -57,6 +57,6 @@ scache_load /usr/share/sounds/KDE_Notify.wav x11-bell
 # Load X11 bell module
 #load module-x11-bell sample=x11-bell sink=output
 
-load module-pipe-source
-load module-pipe-sink
+#load module-pipe-source
+#load module-pipe-sink
 

polyp/polyplib-context.c

@@ -633,3 +633,43 @@ fail:
 
     return -1;
 }
+
+struct pa_operation* pa_context_set_default_sink(struct pa_context *c, const char *name, void(*cb)(struct pa_context*c, int success, void *userdata), void *userdata) {
+    struct pa_tagstruct *t;
+    struct pa_operation *o;
+    uint32_t tag;
+    assert(c && cb);
+
+    o = pa_operation_new(c, NULL);
+    o->callback = cb;
+    o->userdata = userdata;
+
+    t = pa_tagstruct_new(NULL, 0);
+    pa_tagstruct_putu32(t, PA_COMMAND_SET_DEFAULT_SINK);
+    pa_tagstruct_putu32(t, tag = c->ctag++);
+    pa_tagstruct_puts(t, name);
+    pa_pstream_send_tagstruct(c->pstream, t);
+    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT,  pa_context_simple_ack_callback, o);
+
+    return pa_operation_ref(o);
+}
+
+struct pa_operation* pa_context_set_default_source(struct pa_context *c, const char *name, void(*cb)(struct pa_context*c, int success,  void *userdata), void *userdata) {
+    struct pa_tagstruct *t;
+    struct pa_operation *o;
+    uint32_t tag;
+    assert(c && cb);
+
+    o = pa_operation_new(c, NULL);
+    o->callback = cb;
+    o->userdata = userdata;
+
+    t = pa_tagstruct_new(NULL, 0);
+    pa_tagstruct_putu32(t, PA_COMMAND_SET_DEFAULT_SOURCE);
+    pa_tagstruct_putu32(t, tag = c->ctag++);
+    pa_tagstruct_puts(t, name);
+    pa_pstream_send_tagstruct(c->pstream, t);
+    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT,  pa_context_simple_ack_callback, o);
+
+    return pa_operation_ref(o);
+}

polyp/polyplib-context.h

@@ -98,6 +98,12 @@ struct pa_operation* pa_context_drain(struct pa_context *c, void (*cb) (struct p
  * would never complete. */
 void pa_context_exit_daemon(struct pa_context *c);
 
+/** Set the name of the default sink. \since 0.4 */
+struct pa_operation* pa_context_set_default_sink(struct pa_context *c, const char *name, void(*cb)(struct pa_context*c, int success, void *userdata), void *userdata);
+
+/** Set the name of the default source. \since 0.4 */
+struct pa_operation* pa_context_set_default_source(struct pa_context *c, const char *name, void(*cb)(struct pa_context*c, int success,  void *userdata), void *userdata);
+
 PA_C_DECL_END
 
 #endif

polyp/polyplib-def.h

@@ -106,7 +106,8 @@ enum pa_subscription_mask {
     PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT = 8,      /**< Source output events */
     PA_SUBSCRIPTION_MASK_MODULE = 16,            /**< Module events */
     PA_SUBSCRIPTION_MASK_CLIENT = 32,            /**< Client events */
-    PA_SUBSCRIPTION_MASK_SAMPLE_CACHE = 64       /**< Sample cache events */
+    PA_SUBSCRIPTION_MASK_SAMPLE_CACHE = 64,      /**< Sample cache events */
+    PA_SUBSCRIPTION_MASK_SERVER = 128            /**< Other global server changes. \since 0.4 */
 };
 
 /** Subscription event types, as used by pa_context_subscribe() */
@@ -118,6 +119,7 @@ enum pa_subscription_event_type {
     PA_SUBSCRIPTION_EVENT_MODULE = 4,         /**< Event type: Module */
     PA_SUBSCRIPTION_EVENT_CLIENT = 5,         /**< Event type: Client */
     PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE = 6,   /**< Event type: Sample cache item */
+    PA_SUBSCRIPTION_EVENT_SERVER = 7,         /**< Event type: Global server change, only occuring with PA_SUBSCRIPTION_EVENT_CHANGE. \since 0.4  */
     PA_SUBSCRIPTION_EVENT_FACILITY_MASK = 7,  /**< A mask to extract the event type from an event value */
 
     PA_SUBSCRIPTION_EVENT_NEW = 0,            /**< A new object was created */

polyp/polyplib-introspect.c

@@ -83,7 +83,10 @@ static void context_get_server_info_callback(struct pa_pdispatch *pd, uint32_t c
                pa_tagstruct_gets(t, &i.user_name) < 0 ||
                pa_tagstruct_gets(t, &i.host_name) < 0 ||
                pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
+               pa_tagstruct_gets(t, &i.default_sink_name) < 0 ||
+               pa_tagstruct_gets(t, &i.default_source_name) < 0 ||
                !pa_tagstruct_eof(t)) {
+
         pa_context_fail(o->context, PA_ERROR_PROTOCOL);
         goto finish;
     }
@@ -174,6 +177,27 @@ struct pa_operation* pa_context_get_sink_info_by_index(struct pa_context *c, uin
     return pa_operation_ref(o);
 }
 
+struct pa_operation* pa_context_get_sink_info_by_name(struct pa_context *c, const char *name, void (*cb)(struct pa_context *c, const struct pa_sink_info *i, int is_last, void *userdata), void *userdata) {
+    struct pa_tagstruct *t;
+    struct pa_operation *o;
+    uint32_t tag;
+    assert(c && cb);
+
+    o = pa_operation_new(c, NULL);
+    o->callback = cb;
+    o->userdata = userdata;
+
+    t = pa_tagstruct_new(NULL, 0);
+    pa_tagstruct_putu32(t, PA_COMMAND_GET_SINK_INFO);
+    pa_tagstruct_putu32(t, tag = c->ctag++);
+    pa_tagstruct_putu32(t, PA_INVALID_INDEX);
+    pa_tagstruct_puts(t, name);
+    pa_pstream_send_tagstruct(c->pstream, t);
+    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_info_callback, o);
+
+    return pa_operation_ref(o);
+}
+
 /*** Source info ***/
 
 static void context_get_source_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
@@ -244,6 +268,27 @@ struct pa_operation* pa_context_get_source_info_by_index(struct pa_context *c, u
     return pa_operation_ref(o);
 }
 
+struct pa_operation* pa_context_get_source_info_by_name(struct pa_context *c, const char *name, void (*cb)(struct pa_context *c, const struct pa_source_info *i, int is_last, void *userdata), void *userdata) {
+    struct pa_tagstruct *t;
+    struct pa_operation *o;
+    uint32_t tag;
+    assert(c && cb);
+
+    o = pa_operation_new(c, NULL);
+    o->callback = cb;
+    o->userdata = userdata;
+
+    t = pa_tagstruct_new(NULL, 0);
+    pa_tagstruct_putu32(t, PA_COMMAND_GET_SOURCE_INFO);
+    pa_tagstruct_putu32(t, tag = c->ctag++);
+    pa_tagstruct_putu32(t, PA_INVALID_INDEX);
+    pa_tagstruct_puts(t, name);
+    pa_pstream_send_tagstruct(c->pstream, t);
+    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_info_callback, o);
+
+    return pa_operation_ref(o);
+}
+
 /*** Client info ***/
 
 static void context_get_client_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {

polyp/polyplib-introspect.h

@@ -96,6 +96,8 @@ struct pa_server_info {
     const char *server_version;         /**< Version string of the daemon */
     const char *server_name;            /**< Server package name (usually "polypaudio") */
     struct pa_sample_spec sample_spec;  /**< Default sample specification */
+    const char *default_sink_name;      /**< Name of default sink. \since 0.4 */
+    const char *default_source_name;      /**< Name of default sink. \since 0.4*/
 };
 
 /** Get some information about the server */

polyp/protocol-native.c

@@ -138,6 +138,7 @@ static void command_subscribe(struct pa_pdispatch *pd, uint32_t command, uint32_
 static void command_set_volume(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
 static void command_cork_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
 static void command_flush_or_trigger_playback_stream(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
+static void command_set_default_sink_or_source(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata);
 
 static const struct pa_pdispatch_command command_table[PA_COMMAND_MAX] = {
     [PA_COMMAND_ERROR] = { NULL },
@@ -182,6 +183,8 @@ static const struct pa_pdispatch_command command_table[PA_COMMAND_MAX] = {
     [PA_COMMAND_CORK_PLAYBACK_STREAM] = { command_cork_playback_stream },
     [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = { command_flush_or_trigger_playback_stream },
     [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = { command_flush_or_trigger_playback_stream },
+    [PA_COMMAND_SET_DEFAULT_SINK] = { command_set_default_sink_or_source },
+    [PA_COMMAND_SET_DEFAULT_SOURCE] = { command_set_default_sink_or_source },
 };
 
 /* structure management */
@@ -1221,6 +1224,8 @@ static void command_get_server_info(struct pa_pdispatch *pd, uint32_t command, u
     pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt)));
     pa_tagstruct_puts(reply, pa_get_host_name(txt, sizeof(txt)));
     pa_tagstruct_put_sample_spec(reply, &c->protocol->core->default_sample_spec);
+    pa_tagstruct_puts(reply, c->protocol->core->default_sink_name ?  c->protocol->core->default_sink_name : "");
+    pa_tagstruct_puts(reply, c->protocol->core->default_source_name ?  c->protocol->core->default_source_name : "");
     pa_pstream_send_tagstruct(c->pstream, reply);
 }
 
@@ -1373,6 +1378,28 @@ static void command_flush_or_trigger_playback_stream(struct pa_pdispatch *pd, ui
     request_bytes(s);
 }
 
+static void command_set_default_sink_or_source(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
+    struct connection *c = userdata;
+    uint32_t index;
+    const char *s;
+    assert(c && t);
+
+    if (pa_tagstruct_getu32(t, &index) < 0 ||
+        pa_tagstruct_gets(t, &s) < 0 ||
+        !pa_tagstruct_eof(t)) {
+        protocol_error(c);
+        return;
+    }
+
+    if (!c->authorized) {
+        pa_pstream_send_error(c->pstream, tag, PA_ERROR_ACCESS);
+        return;
+    }
+
+    pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK);
+    pa_pstream_send_simple_ack(c->pstream, tag);
+}
+
 /*** pstream callbacks ***/
 
 static void pstream_packet_callback(struct pa_pstream *p, struct pa_packet *packet, void *userdata) {