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Implement PA_SOURCE_MESSAGE_GET_LATENCY

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The pipe source needs to implement PA_SOURCE_MESSAGE_GET_LATENCY since
we'll otherwise hit an assert.

Closes #424.
This commit is contained in:
Lennart Poettering 2008-12-21 13:34:56 +01:00
parent 10cc4ba1ca
commit 606c9caa0b
1 changed files with 30 additions and 0 deletions
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30
src/modules/module-pipe-source.c
View file

@ -31,6 +31,7 @@
#include <fcntl.h>
#include <unistd.h>
#include <limits.h>
#include <sys/ioctl.h>
#include <sys/poll.h>
#include <pulse/xmalloc.h>
@ -89,6 +90,34 @@ static const char* const valid_modargs[] = {
NULL
};
static int source_process_msg(
pa_msgobject *o,
int code,
void *data,
int64_t offset,
pa_memchunk *chunk) {
struct userdata *u = PA_SOURCE(o)->userdata;
switch (code) {
case PA_SOURCE_MESSAGE_GET_LATENCY: {
size_t n = 0;
int l;
#ifdef FIONREAD
if (ioctl(u->fd, FIONREAD, &l) >= 0 && l > 0)
n = (size_t) l;
#endif
*((pa_usec_t*) data) = pa_bytes_to_usec(n, &u->source->sample_spec);
return 0;
}
}
return pa_source_process_msg(o, code, data, offset, chunk);
}
static void thread_func(void *userdata) {
struct userdata *u = userdata;
int read_type = 0;
@ -243,6 +272,7 @@ int pa__init(pa_module*m) {
goto fail;
}
u->source->parent.process_msg = source_process_msg;
u->source->userdata = u;
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);