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175 commits

Author SHA1 Message Date
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
Lennart Poettering
c313b23d5f one s/0/NULL/ 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1276 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 23:43:27 +00:00
Lennart Poettering
7ac79098a6 remove export/import objects when SHM is disable for a pa_pstream object 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1275 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 23:42:14 +00:00
Lennart Poettering
fd3fe96ce5 add new function pa_mempool_is_shared() to test whether a memory pool is suitable for SHM data transfers 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1274 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 23:40:48 +00:00
Lennart Poettering
e385d93e5a remove all occurences of 
pa_logXXX(__FILE__":  
   
and replace them by 
  
   pa_logXXX("



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1272 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 21:38:40 +00:00
Lennart Poettering
1bc62d5ec6 rework logging subsystem, to implicitly include __FILE__ in pa_log() calls. In addition we now record the line numbers and function names of pa_log calls. However, those are only shown If $PULSE_LOG_META is set. 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1271 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 21:26:01 +00:00
Lennart Poettering
0e436a6926 Rework memory management to allow shared memory data transfer. The central idea 
is to allocate all audio memory blocks from a per-process memory pool which is
available as read-only SHM segment to other local processes. Then, instead of
writing the actual audio data to the socket just write references to this
shared memory pool.

To work optimally all memory blocks should now be of type PA_MEMBLOCK_POOL or
PA_MEMBLOCK_POOL_EXTERNAL. The function pa_memblock_new() now generates memory
blocks of this type by default.



git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1266 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 19:55:18 +00:00
Lennart Poettering
ff48681aae add abstracted shared memory API 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1265 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 19:46:20 +00:00
Lennart Poettering
20d0823e35 fix a bad type cast 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1264 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 19:45:19 +00:00
Lennart Poettering
dfa17b9f36 cleanup hashmap.[ch] a little: use hash/compare func prototypes defined in idxset.h, add pa_hashmpa_{get,steal}_first 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1263 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 19:43:46 +00:00
Lennart Poettering
8be0cf6007 cleanup idxset.[ch] a little: define proper types for the hash/compare funcs, do ptr->int/int->ptr conversions with clean macros 
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1262 fefdeb5f-60dc-0310-8127-8f9354f1896f
 2006-08-18 19:42:14 +00:00