Signed-off-by: falkTX <falktx@gmail.com>

* [metadata] Metadata properties implementation.

* [metadata] Fixed for shared server metadata-base accessor; alsofixed coding/naming style.

* [metadata] Fixed a tab for space.

* [metadata] Use of Berkeley DB is now truly optional on configure time.

* [metadata] Fixed tabs for spaces, again.

* [metadata] Fixed for shared metadata-base initialization and external clients.

* [metadata] Blind-fix for windows codebase.

* [metadata] Metadata API moved into client-side library only.

* [metadata] Fixed jack_port_uuid() stubbiness, now returning a proper UUID from port index.

* [metadata] Uniform method names.

* [metadata] Fixed PropertyChangeNotify through server async call.

Signed-off-by: falkTX <falktx@gmail.com>

This adds missing includes for alloca. The man page of alloca(3) states
that alloca.h should be #include'd to use alloca.

Also work around missing alloca.h header on Windows by adding a
compatibility module.

Closes: #197

This reverts commit dde9f29a8e.

The commit introduced the following compiler error:

[100/255] Compiling posix/JackNetUnixSocket.cpp
../posix/JackNetUnixSocket.cpp: In member function 'int Jack::JackNetUnixSocket::NewSocket()':
../posix/JackNetUnixSocket.cpp:126:32: error: 'tos' was not declared in this scope
         socklen_t len = sizeof(tos);

A bit late...

With this patch it is possibly to start the JACK daemon with a systemd
service file of type notify. The following provides an example service
file:

[Service]
Type=notify
ExecStart=/usr/bin/jackd -d alsa

[Install]
WantedBy=multi-user.target

Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>

Flagged by the Debian QA tool.

Mostly automatic search-n-replace of the mistakes flagged.

Fixes #288

Thanks to Timo Wischer for the initial work

Adjusts the permissions of shared memory segments when promiscuous mode is
enabled.

The jack_group2gid() function does a thread-safe lookup of a unix gid from a
unix group name.

The jack_promiscuous_perms() function adjusts the permissions of a shared
resource (socket, semaphore, shm segment, ...) referenced by a fd and/or a
path so it can be used by any member of the provided unix group.

By using those functions it will be possible to enable a secure promiscuous
mode. 'Secure' meaning here that one is not forced to launch every clients
with a (way) too permissive 0000 umask.

Includes optimizations for internal clients, but not enabled yet.

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>

a leading 1 was missing [1]

[1] http://www.musicdsp.org/showone.php?id=59

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>

* detect version option before all other oprion parsing

jackd now checks its arguments for "-V" and "--version" before all other
option parsing happens.

* remove some dead code from option parsing

Version options are detected before optparse runs, the removed code
paths thus became obsolete.

* remove rest of version option from optparse

Detection of the version option is now handled outside of optparse, thus
left over stings and variables are removed.

* switch to string comparison for detection version option

Demanding an exact match for the option strings reflects the original
behavior more closely than a search for substrings.

If configured with --clients=512 (translates to CLIENT_NUM), we exceed
the maximum stack size. CLIENT_NUM==500 still works, but let's allocate
the matrix on the heap to be safe.

Kudos to Markus Seeber for the initial bug triage.

Fixes #212

Reported by valgrind using the command below:
$ valgrind jackd -p128 -t2000 -dalsa -dhw:0 -r44100 -p2048 -n2 -S
==8930== Memcheck, a memory error detector
==8930== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==8930== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info
==8930== Command: jackd -p128 -t2000 -dalsa -dhw:0 -r44100 -p2048 -n2 -S
==8930==
jackdmp 1.9.11
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2016 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
creating alsa driver ... hw:0|hw:0|2048|2|44100|0|0|nomon|swmeter|-|16bit
configuring for 44100Hz, period = 2048 frames (46.4 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
==8930== Thread 4:
==8930== Syscall param write(buf) points to uninitialised byte(s)
==8930==    at 0x571388D: ??? (syscall-template.S:81)
==8930==    by 0x4EA70B3: Jack::JackClientSocket::Write(void*, int) (JackSocket.cpp:233)
==8930==    by 0x4E94C62: Jack::JackClientCheckResult::Write(Jack::detail::JackChannelTransactionInterface*) (JackRequest.h:227)
==8930==    by 0x4ECDF3A: Jack::JackRequestDecoder::HandleRequest(Jack::detail::JackChannelTransactionInterface*, int) (JackRequestDecoder.cpp:58)
==8930==    by 0x4ED4219: Jack::JackSocketServerChannel::Execute() (JackSocketServerChannel.cpp:247)
==8930==    by 0x4EA4B63: Jack::JackPosixThread::ThreadHandler(void*) (JackPosixThread.cpp:59)
==8930==    by 0x59F5181: start_thread (pthread_create.c:312)
==8930==    by 0x572247C: clone (clone.S:111)
==8930==  Address 0x41da85e is on thread 4's stack
==8930==  in frame #3, created by Jack::JackRequestDecoder::HandleRequest(Jack::detail::JackChannelTransactionInterface*, int) (JackRequestDecoder.cpp:46)
==8930==
==8930== Syscall param write(buf) points to uninitialised byte(s)
==8930==    at 0x571388D: ??? (syscall-template.S:81)
==8930==    by 0x4EA70B3: Jack::JackClientSocket::Write(void*, int) (JackSocket.cpp:233)
==8930==    by 0x4ED619B: Jack::JackClientNotification::Write(Jack::detail::JackChannelTransactionInterface*) (JackRequest.h:1606)
==8930==    by 0x4ED5F2E: Jack::JackSocketNotifyChannel::ClientNotify(int, char const*, int, int, char const*, int, int, int*) (JackSocketNotifyChannel.cpp:56)
==8930==    by 0x4EB51DF: Jack::JackExternalClient::ClientNotify(int, char const*, int, int, char const*, int, int) (JackExternalClient.cpp:40)
==8930==    by 0x4EAFA9A: Jack::JackEngine::ClientNotify(Jack::JackClientInterface*, int, char const*, int, int, char const*, int, int) (JackEngine.cpp:274)
==8930==    by 0x4EAFD34: Jack::JackEngine::NotifyAddClient(Jack::JackClientInterface*, char const*, int) (JackEngine.cpp:318)
==8930==    by 0x4EB0C99: Jack::JackEngine::ClientExternalOpen(char const*, int, int, int*, int*, int*, int*) (JackEngine.cpp:636)
==8930==    by 0x4ED4486: Jack::JackLockedEngine::ClientExternalOpen(char const*, int, int, int*, int*, int*, int*) (JackLockedEngine.h:123)
==8930==    by 0x4ED3AD5: Jack::JackSocketServerChannel::ClientAdd(Jack::detail::JackChannelTransactionInterface*, Jack::JackClientOpenRequest*, Jack::JackClientOpenResult*) (JackSocketServerChannel.cpp:132)
==8930==    by 0x4ECE0B8: Jack::JackRequestDecoder::HandleRequest(Jack::detail::JackChannelTransactionInterface*, int) (JackRequestDecoder.cpp:73)
==8930==    by 0x4ECDFBA: Jack::JackRequestDecoder::HandleRequest(Jack::detail::JackChannelTransactionInterface*, int) (JackRequestDecoder.cpp:63)
==8930==  Address 0x41d9ccb is on thread 4's stack
==8930==  in frame #3, created by Jack::JackSocketNotifyChannel::ClientNotify(int, char const*, int, int, char const*, int, int, int*) (JackSocketNotifyChannel.cpp:51)
==8930==
==8930== Syscall param write(buf) points to uninitialised byte(s)
==8930==    at 0x571388D: ??? (syscall-template.S:81)
==8930==    by 0x4EA70B3: Jack::JackClientSocket::Write(void*, int) (JackSocket.cpp:233)
==8930==    by 0x4ED633C: Jack::JackClientNotification::Write(Jack::detail::JackChannelTransactionInterface*) (JackRequest.h:1612)
==8930==    by 0x4ED5F2E: Jack::JackSocketNotifyChannel::ClientNotify(int, char const*, int, int, char const*, int, int, int*) (JackSocketNotifyChannel.cpp:56)
==8930==    by 0x4EB51DF: Jack::JackExternalClient::ClientNotify(int, char const*, int, int, char const*, int, int) (JackExternalClient.cpp:40)
==8930==    by 0x4EAFA9A: Jack::JackEngine::ClientNotify(Jack::JackClientInterface*, int, char const*, int, int, char const*, int, int) (JackEngine.cpp:274)
==8930==    by 0x4EAFD34: Jack::JackEngine::NotifyAddClient(Jack::JackClientInterface*, char const*, int) (JackEngine.cpp:318)
==8930==    by 0x4EB0C99: Jack::JackEngine::ClientExternalOpen(char const*, int, int, int*, int*, int*, int*) (JackEngine.cpp:636)
==8930==    by 0x4ED4486: Jack::JackLockedEngine::ClientExternalOpen(char const*, int, int, int*, int*, int*, int*) (JackLockedEngine.h:123)
==8930==    by 0x4ED3AD5: Jack::JackSocketServerChannel::ClientAdd(Jack::detail::JackChannelTransactionInterface*, Jack::JackClientOpenRequest*, Jack::JackClientOpenResult*) (JackSocketServerChannel.cpp:132)
==8930==    by 0x4ECE0B8: Jack::JackRequestDecoder::HandleRequest(Jack::detail::JackChannelTransactionInterface*, int) (JackRequestDecoder.cpp:73)
==8930==    by 0x4ECDFBA: Jack::JackRequestDecoder::HandleRequest(Jack::detail::JackChannelTransactionInterface*, int) (JackRequestDecoder.cpp:63)
==8930==  Address 0x41d9d1d is on thread 4's stack
==8930==  in frame #3, created by Jack::JackSocketNotifyChannel::ClientNotify(int, char const*, int, int, char const*, int, int, int*) (JackSocketNotifyChannel.cpp:51)
==8930==

Reported by valgrind using the command below:
$ valgrind jackd -p128 -t2000 -dalsa -dhw:0 -r44100 -p2048 -n2 -S
==17496== Memcheck, a memory error detector
==17496== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==17496== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info
==17496== Command: jackd -p128 -t2000 -dalsa -dhw:0 -r44100 -p2048 -n2 -S
==17496==
jackdmp 1.9.11
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2016 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
self-connect-mode is "Don't restrict self connect requests"
creating alsa driver ... hw:0|hw:0|2048|2|44100|0|0|nomon|swmeter|-|16bit
configuring for 44100Hz, period = 2048 frames (46.4 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
==17496== Thread 3:
==17496== Conditional jump or move depends on uninitialised value(s)
==17496==    at 0x4E91CC9: Jack::JackEngineControl::CalcCPULoad(Jack::JackClientInterface**, Jack::JackGraphManager*, unsigned long, unsigned long) (JackEngineControl.cpp:58)
==17496==    by 0x4EB3256: Jack::JackEngineControl::CycleBegin(Jack::JackClientInterface**, Jack::JackGraphManager*, unsigned long, unsigned long) (JackEngineControl.h:153)
==17496==    by 0x4EAF54A: Jack::JackEngine::Process(unsigned long, unsigned long) (JackEngine.cpp:166)
==17496==    by 0x4EA922E: Jack::JackLockedEngine::Process(unsigned long, unsigned long) (JackLockedEngine.h:261)
==17496==    by 0x4EA8819: Jack::JackAudioDriver::ProcessGraphAsyncMaster() (JackAudioDriver.cpp:250)
==17496==    by 0x4EA87D0: Jack::JackAudioDriver::ProcessGraphAsync() (JackAudioDriver.cpp:236)
==17496==    by 0x4EA8795: Jack::JackAudioDriver::ProcessAsync() (JackAudioDriver.cpp:225)
==17496==    by 0x4EA870E: Jack::JackAudioDriver::Process() (JackAudioDriver.cpp:202)
==17496==    by 0x4EBA5DA: Jack::JackThreadedDriver::Process() (JackThreadedDriver.cpp:71)
==17496==    by 0x4EBAC52: Jack::JackThreadedDriver::Execute() (JackThreadedDriver.cpp:244)
==17496==    by 0x4EA4B63: Jack::JackPosixThread::ThreadHandler(void*) (JackPosixThread.cpp:61)
==17496==    by 0x59F5181: start_thread (pthread_create.c:312)
==17496==
^CJack main caught signal 2
==17496==
==17496== HEAP SUMMARY:
==17496==     in use at exit: 95,475 bytes in 1,441 blocks
==17496==   total heap usage: 2,793 allocs, 1,352 frees, 7,217,645 bytes allocated
==17496==
==17496== LEAK SUMMARY:
==17496==    definitely lost: 1,458 bytes in 10 blocks
==17496==    indirectly lost: 7,680 bytes in 4 blocks
==17496==      possibly lost: 42,998 bytes in 1,314 blocks
==17496==    still reachable: 43,339 bytes in 113 blocks
==17496==         suppressed: 0 bytes in 0 blocks
==17496== Rerun with --leak-check=full to see details of leaked memory
==17496==
==17496== For counts of detected and suppressed errors, rerun with: -v
==17496== Use --track-origins=yes to see where uninitialised values come from
==17496== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

This reverts commit b4e7e875a7.

See discussion at http://comments.gmane.org/gmane.comp.audio.jackit/29516