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Author SHA1 Message Date
Pierre Ossman
0ef2d7eb77 Support reversed endian floats. (closes #28) (closes #35) 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1412 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-11-08 13:03:35 +00:00
Pierre Ossman
55c25c657e Check correct variable for return value. Closes #37. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1411 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-11-08 12:56:26 +00:00
Pierre Ossman
8dc6214276 Revert r1404 and keep it on a development branch until it is fully tested. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1409 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-11-06 13:06:01 +00:00
Lennart Poettering
d210ebbb09 rework memory block management to be thread-safe and mostly lock-free. 
pa_memblock is now an opaque structure. Access to its fields is now done
through various accessor functions in a thread-safe manner.

pa_memblock_acquire() and pa_memblock_release() are now used to access the
attached audio data. Why? To allow safe manipulation of the memory pointer
maintained by the memory block. Internally _acquire() and _release() maintain a
reference counter. Please do not confuse this reference counter whith the one
maintained by pa_memblock_ref()/_unref()!

As a side effect this patch removes all direct usages of AO_t and replaces it
with pa_atomic_xxx based code.

This stuff needs some serious testing love. Especially if threads are actively
used.



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1404 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-26 23:50:56 +00:00
Lennart Poettering
5ad143b3ab upgrade refcnt.h to make use of our new pa_atomic_xxx() API 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1403 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-26 23:42:08 +00:00
Lennart Poettering
736de36f68 add asynchronous inter-thread notification API 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1402 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-26 23:41:20 +00:00
Pierre Ossman
772645922a Fix up build structure for platform dependent modules. Also add implementation 
on Win32 for pa_once().


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1395 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-11 07:56:03 +00:00
Lennart Poettering
0e96d8b7bc make pa_mutex_new() and pa_cond_new() succeed in all cases. Similar behaviour to pa_xmalloc(). 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1389 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-09 23:55:58 +00:00
Lennart Poettering
d0dcde060b rework pa_once once again, because the once function needs to have terminated before pa_once returns, regardless whether the local call executes it or another thread does. 
With the previous code it might happen that an long-running initializing in a once function is not terminated yet when another thread thinks it already is.


git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1387 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-09 23:54:19 +00:00
Lennart Poettering
6d532029ea update for newer APIs: replace direct usage of libatomic_ops by usage of our own atomic.h; remove pa_once implementation; always use our pa_once implementation instead of the POSIX version 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1386 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-09 22:59:17 +00:00
Lennart Poettering
3426a399cc implement trival pa_once API based on atomic operations 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1385 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-09 22:55:51 +00:00
Lennart Poettering
c89cb6a00f add static initializer PA_ATOMIC_INIT() 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1384 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-09 22:54:11 +00:00
Lennart Poettering
ee40a3439f implement a simple lock-free free list 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1382 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-09 21:05:31 +00:00
Lennart Poettering
bfaa358458 add a tiny wrapper around libatomic_ops: pa_atomic_int_t and pa_atomit_ptr_t. 
Reasoning:

This wrapper fixes a few API issues I found with atomic_ops:

 * AO_t is an int, which can be written to with "=". pa_tomic_int_t however is
   a struct which due to type-safety enforces proper access with
   pa_atomic_xx(). (Inspired by the way the Linux kernel handles this)
 
 * AO_load()'s parameter is lacking a "const" 

 * Explicitly choosing the proper memory barrier for each call is very
   difficult and especially hard to debug because most CPUs support only two
   different barrier types which the eight types defined by atomic_ops are
   mapped to. Most other software (i.e. glib, Linux kernel) which provides
   atomic variable access usually do a full barrier in all cases and so should
   we. Eventually we might choose to add additional memory barrier calls, in
   which case we can add special versions of the current function with special
   suffixes.

 * The function names are unnecesarily long

 * Atomic pointer accesses are only supported with manual casts. 

The new pa_atomic_xxx interface borrows heavily from the GLib and Linux kernel
atomicity API, though it is different from both of them.

In addition this abstract API makes it easy to port PA to different atomicty
APIs, if libatomic_ops should ever become out-of-fashion or if the system OS
supports atomic primitives anyway.



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1381 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-08 15:43:44 +00:00
Lennart Poettering
791bbd8e0e don't maintain a list of allocated mempool slots, we don't use it anyway 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1380 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-07 20:17:25 +00:00
Lennart Poettering
1728e3ac98 make pa_stream thread-safe: use new refcounting system, protect access using mutexes 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1379 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-07 19:08:19 +00:00
Lennart Poettering
ead67cda48 fix indentation 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1375 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-06 22:19:11 +00:00
Lennart Poettering
6bbfb43f2a add accessor functions for the userdata attached to a pa_thread object 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1371 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-04 22:15:15 +00:00
Lennart Poettering
3be920d9ae fix pa_thread_is_running() for foreign threads; fix a memory leak for foreign threads 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1370 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-04 22:04:33 +00:00
Lennart Poettering
8e7c2a3b0c make pa_thread_self() return a sensible pointer on foreign threads 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1368 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-04 21:28:34 +00:00
Pierre Ossman
647ef180c3 Fix call to pa_mutex_new(). 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1358 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-01 19:06:44 +00:00
Pierre Ossman
f84c65ed86 Add pthread_once() equivalent support. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1357 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-01 18:39:55 +00:00
Pierre Ossman
3571bf1699 Thread implementation for Win32. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1356 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-09-01 18:16:55 +00:00
Pierre Ossman
6e9706bcbc Also wrap yield functionality so that it can be platform independent. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1353 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-31 16:13:07 +00:00
Lennart Poettering
aee4a3738e define AO_REQUIRE_CAS in the Makefile instead of each source file, effectively reversing r1348 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1351 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-31 15:20:43 +00:00
Lennart Poettering
2f6cc4f8fa fix handling of "running" variable 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1349 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-30 17:12:35 +00:00
Pierre Ossman
ad0535beef Add AO_REQUIRE_CAS as we do. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1348 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-30 17:01:10 +00:00
Lennart Poettering
b2c341f935 add a threading primitive API 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1344 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-29 19:51:14 +00:00
Lennart Poettering
5264d235d2 make pa_mempool_stat thread-safe/lock-free 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1343 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-29 02:01:39 +00:00
Lennart Poettering
327e0cd8e1 modify memory block reference counting to use the new reference counting API 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1342 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-29 01:16:47 +00:00
Lennart Poettering
9948cb09a3 add lock-free reference counting macros, based on libatomic-ops 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1341 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-29 01:15:51 +00:00
Lennart Poettering
a633944820 fix an misdesigned assert() 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1339 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-28 19:16:00 +00:00
Pierre Ossman
2575b44637 fix typo 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1328 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-23 07:58:07 +00:00
Pierre Ossman
7bf2540778 Fall back to creating a "normal" memory pool if unable to get a shared one. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1321 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-22 12:51:29 +00:00
Pierre Ossman
26bfce6281 Improve error messages a bit. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1320 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-22 12:46:05 +00:00
Pierre Ossman
cf7b401ac6 Fix up portability of memory pool handling a bit. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1319 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-22 12:45:43 +00:00
Pierre Ossman
10bbc4b7c9 Fix detection of shared memory support and proper fallback. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1316 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-22 11:41:14 +00:00
Pierre Ossman
d964459a64 Fix detection of page size for non-POSIX systems. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1312 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-22 07:41:23 +00:00
Lennart Poettering
bffde5da05 If a client leaves the sink/source for a stream unspecified by passing NULL as 
sink/source name sink/source we should pass NULL to
pa_sink_input_new()/pa_source_output_new() as too. This allows
hooks to change the sink/source device only if it is left unspecified by the client



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1303 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 23:06:45 +00:00
Lennart Poettering
bf62e77f71 fix a bad memory access 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1302 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 23:04:04 +00:00
Lennart Poettering
c0b3e8b346 when transferring large memory chunks of a pa_pstream, split them up 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1300 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 18:57:33 +00:00
Lennart Poettering
3e0f00f93d if MAP_ANONYMOUS is not supported use posix_memalign if possible to allocate the memory pool 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1296 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 17:27:27 +00:00
Lennart Poettering
c6ca9a85c3 print per-type memory block statistics on "stat" 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1294 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 16:25:41 +00:00
Lennart Poettering
57f0b08cc1 generate per-type memory block statistics 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1293 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 16:25:15 +00:00
Lennart Poettering
af87c7d21b rework the resample to allocate temporary memory with pa_memblock_new() instead of pa_xrealloc() 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1291 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 02:23:52 +00:00
Lennart Poettering
206ac6f3ee allow importing of external shm data blocks unconditionally, even when local SHM support is disabled 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1283 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 01:16:38 +00:00
Lennart Poettering
046bdd9b30 deal properly with pa_mempool_new() failing 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1282 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 01:15:48 +00:00
Lennart Poettering
8c9bdb838c fix allocation of anonymous memory 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1281 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 01:15:22 +00:00
Lennart Poettering
c2db5f8864 fix a memory leak 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1280 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-19 01:14:59 +00:00
Lennart Poettering
e33abc3089 activate SHM support on the server side only when new client supports it and when client and server have the same UID. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1277 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 23:44:35 +00:00