Yes, yet another evil all-in-one commit of intervowen changes. I suck.

* Drop "state" directory, fold that into "runtime directory"
* No longer automatically rewind when a new stream connects
* Rework sound file stream, to cause a rewind on initialisation, shorten _pop() code a bit
* Fix reference counting of pa_socket_server in the protocol implementations
* Rework daemon initialization code to be compatible with non-SUID-root setups where RLIMIT_RTPRIO is non-zero
* Print warning if RT/HP is enabled in the config, but due to missing caps, rlimits, policy we cannot enable it.
* Fix potential memory leak in pa_open_config_file()
* Add pa_find_config_file() which works much like pa_open_config_file() but doesn't actually open the config file in question. Just searches for it.
* Add portable pa_is_path_absolute()
* Add pa_close_all() and use it on daemon startup to close leaking file descriptors (inspired from what I did for libdaemon)
* Add pa_unblock_sigs() and use it on daemon startup to unblock all signals (inspired from libdaemon, too)
* Add pa_reset_sigs() and use it on daemon startup to reset all signal handlers (inspired from libdaemon as well)
* Implement pa_set_env()
* Define RLIMIT_RTTIME and friends if not defined by glibc
* Add pa_strempty()
* rename state testing macros to include _IS_, to make clearer that they are no states, but testing macros
* Implement pa_source_output_set_requested_latency_within_thread() to be able to forward latency info to sources from within the IO thread
* Similar for sink inputs
* generelize since_underrun counter in sink inputs to "playing_for" and "underrun_for". Use only this for ignore potential rewind requests over underruns
* Add new native protocol message PLAYBACK_STREAM_MESSAGE_STARTED for notification about the end of an underrun
* Port native protocol to use underrun_for/playing_for which is maintained by the sink input anyway
* Pass underrun_for/playing_for in timing info to client
* Drop pa_sink_skip() since it breaks underrun detection code
* Move PID file and unix sockets to the runtime dir (i.e. ~/.pulse). This fixes a potention DoS attack from other users stealing dirs in /tmp from us so that we cannot take them anymore)
* Allow setting of more resource limits from the config file. Set RTTIME by default
* Streamline daemon startup code
* Rework algorithm to find default configuration files
* If run in system mode use "system.pa" instead of "default.pa" as default script file
* Change ladspa sink to use pa_clamp_samples() for clamping samples
* Teach module-null-sink how to deal with rewinding
* Try to support ALSA devices with no implicit channel map. Synthesize one by padding with PA_CHANNEL_POSITION_AUX channels. This is not tested since I lack hardware with these problems.
* Make use of time smoother in the client libraries.
* Add new pa_stream_is_corked() and pa_stream_set_started_callback() functions to public API
* Since our native socket moved, add some code for finding sockets created by old versions of PA. This should ease upgrades


git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2329 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 34 insertions, 1 deletions

diff --git a/src/pulse/def.h b/src/pulse/def.h
index 8a83d7a9..1a0b9cb6 100644
--- a/src/pulse/def.h
+++ b/src/pulse/def.h
@@ -48,6 +48,15 @@ typedef enum pa_context_state {
     PA_CONTEXT_TERMINATED      /**< The connection was terminated cleanly */
 } pa_context_state_t;
 
+/** Return non-zero if the passed state is one of the connected states */
+static inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x) {
+    return
+        x == PA_CONTEXT_CONNECTING ||
+        x == PA_CONTEXT_AUTHORIZING ||
+        x == PA_CONTEXT_SETTING_NAME ||
+        x == PA_CONTEXT_READY;
+}
+
 /** The state of a stream */
 typedef enum pa_stream_state {
     PA_STREAM_UNCONNECTED, /**< The stream is not yet connected to any sink or source */
@@ -57,6 +66,13 @@ typedef enum pa_stream_state {
     PA_STREAM_TERMINATED    /**< The stream has been terminated cleanly */
 } pa_stream_state_t;
 
+/** Return non-zero if the passed state is one of the connected states */
+static inline int PA_STREAM_IS_GOOD(pa_stream_state_t x) {
+    return
+        x == PA_STREAM_CREATING ||
+        x == PA_STREAM_READY;
+}
+
 /** The state of an operation */
 typedef enum pa_operation_state {
     PA_OPERATION_RUNNING,      /**< The operation is still running */
@@ -296,6 +312,7 @@ enum {
     PA_ERR_VERSION,                /**< Incompatible protocol version */
     PA_ERR_TOOLARGE,               /**< Data too large */
     PA_ERR_NOTSUPPORTED,           /**< Operation not supported \since 0.9.5 */
+    PA_ERR_UNKNOWN,                /**< The error code was unknown to the client */
     PA_ERR_MAX                     /**< Not really an error but the first invalid error code */
 };
 
@@ -368,7 +385,15 @@ typedef struct pa_timing_info {
     pa_usec_t source_usec;    /**< Time in usecs a sample takes from being recorded to being delivered to the application. Only for record streams. */
     pa_usec_t transport_usec; /**< Estimated time in usecs a sample takes to be transferred to/from the daemon. For both playback and record streams. */
 
-    int playing;              /**< Non-zero when the stream is currently playing. Only for playback streams. */
+    int playing;              /**< Non-zero when the stream is
+                               * currently not underrun and data is
+                               * being passed on to the device. Only
+                               * for playback streams. This field does
+                               * not say whether the data is actually
+                               * already being played. To determine
+                               * this check whether since_underrun
+                               * (converted to usec) is larger than
+                               * sink_usec.*/
 
     int write_index_corrupt;  /**< Non-zero if write_index is not
                                * up-to-date because a local write
@@ -403,6 +428,14 @@ typedef struct pa_timing_info {
                                 * the sink. \since 0.9.11 */
     pa_usec_t configured_source_usec; /**< The static configured latency for
                                 * the source. \since 0.9.11 */
+
+    int64_t since_underrun;    /**< Bytes that were handed to the sink
+                                  since the last underrun happened, or
+                                  since playback started again after
+                                  the last underrun. playing will tell
+                                  you which case it is. \since
+                                  0.9.11 */
+
 } pa_timing_info;
 
 /** A structure for the spawn api. This may be used to integrate auto