X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/0be9bc21d57bdbd18806ceae03289a0bde636e30..d8fb09b56726e626086f8d44e9221c9129b4fa36:/src/modules/module-pipe-sink.c

diff --git a/src/modules/module-pipe-sink.c b/src/modules/module-pipe-sink.c
index cd25b890..4d82cc37 100644
--- a/src/modules/module-pipe-sink.c
+++ b/src/modules/module-pipe-sink.c
@@ -5,7 +5,7 @@
 
   PulseAudio is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published
-  by the Free Software Foundation; either version 2 of the License,
+  by the Free Software Foundation; either version 2.1 of the License,
   or (at your option) any later version.
 
   PulseAudio is distributed in the hope that it will be useful, but
@@ -27,12 +27,13 @@
 #include <sys/stat.h>
 #include <stdio.h>
 #include <errno.h>
-#include <string.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <limits.h>
 #include <sys/ioctl.h>
-#include <poll.h>
+
+#ifdef HAVE_SYS_FILIO_H
+#include <sys/filio.h>
+#endif
 
 #include <pulse/xmalloc.h>
 
@@ -45,19 +46,21 @@
 #include <pulsecore/thread.h>
 #include <pulsecore/thread-mq.h>
 #include <pulsecore/rtpoll.h>
+#include <pulsecore/poll.h>
 
 #include "module-pipe-sink-symdef.h"
 
 PA_MODULE_AUTHOR("Lennart Poettering");
 PA_MODULE_DESCRIPTION("UNIX pipe sink");
 PA_MODULE_VERSION(PACKAGE_VERSION);
-PA_MODULE_LOAD_ONCE(FALSE);
+PA_MODULE_LOAD_ONCE(false);
 PA_MODULE_USAGE(
         "sink_name=<name for the sink> "
+        "sink_properties=<properties for the sink> "
         "file=<path of the FIFO> "
         "format=<sample format> "
+        "rate=<sample rate> "
         "channels=<number of channels> "
-        "rate=<sample rate>"
         "channel_map=<channel map>");
 
 #define DEFAULT_FILE_NAME "fifo_output"
@@ -83,11 +86,12 @@ struct userdata {
 };
 
 static const char* const valid_modargs[] = {
+    "sink_name",
+    "sink_properties",
     "file",
-    "rate",
     "format",
+    "rate",
     "channels",
-    "sink_name",
     "channel_map",
     NULL
 };
@@ -99,10 +103,11 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
 
         case PA_SINK_MESSAGE_GET_LATENCY: {
             size_t n = 0;
+
+#ifdef FIONREAD
             int l;
 
-#ifdef TIOCINQ
-            if (ioctl(u->fd, TIOCINQ, &l) >= 0 && l > 0)
+            if (ioctl(u->fd, FIONREAD, &l) >= 0 && l > 0)
                 n = (size_t) l;
 #endif
 
@@ -116,18 +121,11 @@ static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offse
     return pa_sink_process_msg(o, code, data, offset, chunk);
 }
 
-static void process_rewind(struct userdata *u) {
-    pa_assert(u);
-
-    pa_log_debug("Rewind requested but not supported by pipe sink. Ignoring.");
-    u->sink->thread_info.rewind_nbytes = 0;
-}
-
 static int process_render(struct userdata *u) {
     pa_assert(u);
 
     if (u->memchunk.length <= 0)
-        pa_sink_render(u->sink, PIPE_BUF, &u->memchunk);
+        pa_sink_render(u->sink, pa_pipe_buf(u->fd), &u->memchunk);
 
     pa_assert(u->memchunk.length > 0);
 
@@ -145,15 +143,17 @@ static int process_render(struct userdata *u) {
 
             if (errno == EINTR)
                 continue;
-            else if (errno != EAGAIN) {
+            else if (errno == EAGAIN)
+                return 0;
+            else {
                 pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
                 return -1;
             }
 
         } else {
 
-            u->memchunk.index += l;
-            u->memchunk.length -= l;
+            u->memchunk.index += (size_t) l;
+            u->memchunk.length -= (size_t) l;
 
             if (u->memchunk.length <= 0) {
                 pa_memblock_unref(u->memchunk.memblock);
@@ -173,7 +173,6 @@ static void thread_func(void *userdata) {
     pa_log_debug("Thread starting up");
 
     pa_thread_mq_install(&u->thread_mq);
-    pa_rtpoll_install(u->rtpoll);
 
     for (;;) {
         struct pollfd *pollfd;
@@ -181,12 +180,11 @@ static void thread_func(void *userdata) {
 
         pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
 
-        /* Render some data and write it to the fifo */
-        if (u->sink->thread_info.state == PA_SINK_RUNNING) {
-
-            if (u->sink->thread_info.rewind_nbytes > 0)
-                process_rewind(u);
+        if (PA_UNLIKELY(u->sink->thread_info.rewind_requested))
+            pa_sink_process_rewind(u->sink, 0);
 
+        /* Render some data and write it to the fifo */
+        if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) {
             if (pollfd->revents) {
                 if (process_render(u) < 0)
                     goto fail;
@@ -196,9 +194,9 @@ static void thread_func(void *userdata) {
         }
 
         /* Hmm, nothing to do. Let's sleep */
-        pollfd->events = u->sink->thread_info.state == PA_SINK_RUNNING ? POLLOUT : 0;
+        pollfd->events = (short) (u->sink->thread_info.state == PA_SINK_RUNNING ? POLLOUT : 0);
 
-        if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
+        if ((ret = pa_rtpoll_run(u->rtpoll, true)) < 0)
             goto fail;
 
         if (ret == 0)
@@ -222,7 +220,7 @@ finish:
     pa_log_debug("Thread shutting down");
 }
 
-int pa__init(pa_module*m) {
+int pa__init(pa_module *m) {
     struct userdata *u;
     struct stat st;
     pa_sample_spec ss;
@@ -239,6 +237,7 @@ int pa__init(pa_module*m) {
     }
 
     ss = m->core->default_sample_spec;
+    map = m->core->default_channel_map;
     if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) {
         pa_log("Invalid sample format specification or channel map");
         goto fail;
@@ -255,13 +254,15 @@ int pa__init(pa_module*m) {
 
     u->filename = pa_runtime_path(pa_modargs_get_value(ma, "file", DEFAULT_FILE_NAME));
 
-    mkfifo(u->filename, 0666);
-    if ((u->fd = open(u->filename, O_RDWR|O_NOCTTY)) < 0) {
+    if (mkfifo(u->filename, 0666) < 0) {
+        pa_log("mkfifo('%s'): %s", u->filename, pa_cstrerror(errno));
+        goto fail;
+    }
+    if ((u->fd = pa_open_cloexec(u->filename, O_RDWR, 0)) < 0) {
         pa_log("open('%s'): %s", u->filename, pa_cstrerror(errno));
         goto fail;
     }
 
-    pa_make_fd_cloexec(u->fd);
     pa_make_fd_nonblock(u->fd);
 
     if (fstat(u->fd, &st) < 0) {
@@ -283,6 +284,12 @@ int pa__init(pa_module*m) {
     pa_sink_new_data_set_sample_spec(&data, &ss);
     pa_sink_new_data_set_channel_map(&data, &map);
 
+    if (pa_modargs_get_proplist(ma, "sink_properties", data.proplist, PA_UPDATE_REPLACE) < 0) {
+        pa_log("Invalid properties");
+        pa_sink_new_data_done(&data);
+        goto fail;
+    }
+
     u->sink = pa_sink_new(m->core, &data, PA_SINK_LATENCY);
     pa_sink_new_data_done(&data);
 
@@ -296,13 +303,15 @@ int pa__init(pa_module*m) {
 
     pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
     pa_sink_set_rtpoll(u->sink, u->rtpoll);
+    pa_sink_set_max_request(u->sink, pa_pipe_buf(u->fd));
+    pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(pa_pipe_buf(u->fd), &u->sink->sample_spec));
 
     u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
     pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
     pollfd->fd = u->fd;
     pollfd->events = pollfd->revents = 0;
 
-    if (!(u->thread = pa_thread_new(thread_func, u))) {
+    if (!(u->thread = pa_thread_new("pipe-sink", thread_func, u))) {
         pa_log("Failed to create thread.");
         goto fail;
     }
@@ -322,7 +331,16 @@ fail:
     return -1;
 }
 
-void pa__done(pa_module*m) {
+int pa__get_n_used(pa_module *m) {
+    struct userdata *u;
+
+    pa_assert(m);
+    pa_assert_se(u = m->userdata);
+
+    return pa_sink_linked_by(u->sink);
+}
+
+void pa__done(pa_module *m) {
     struct userdata *u;
 
     pa_assert(m);
@@ -344,7 +362,7 @@ void pa__done(pa_module*m) {
         pa_sink_unref(u->sink);
 
     if (u->memchunk.memblock)
-       pa_memblock_unref(u->memchunk.memblock);
+        pa_memblock_unref(u->memchunk.memblock);
 
     if (u->rtpoll_item)
         pa_rtpoll_item_free(u->rtpoll_item);