Commit Graph

1365 Commits

Author SHA1 Message Date
Christian Helmuth
a8d3cd9b15 libc: open socket files early on socket creation
This prevents later file-descriptor shortage when opening files on
demand, which can't be reflected to the application in a sane manner.

The real fix is to open socket files not on libc level but on VFS level
only effectively consume one libc file descriptor for one socket.
2020-11-23 12:02:58 +01:00
Christian Helmuth
5dfca79bcc libc: use pthread mutex in getifaddrs() 2020-11-23 12:02:58 +01:00
Christian Helmuth
c93f3a1136 libusb: establish/terminate USB session
Now, the USB connection is established on backend initialization and
terminated on backend exit triggered by high-level libusb code.

Thanks to Peter for the patch.
2020-11-23 12:02:57 +01:00
Christian Helmuth
e339dd542c Prevent warning in test-pthread 2020-11-23 12:02:57 +01:00
Christian Helmuth
3d23c8c419 libports: update curl download location 2020-11-23 12:02:57 +01:00
Christian Prochaska
dff3bac441 libc: submit monitor execution signals locally
Issue #3924
2020-11-23 12:02:55 +01:00
Josef Söntgen
f754e2a7d7 stdcxx: add symbols needed by testsuite
Fixes #3921
2020-10-23 15:12:06 +02:00
Josef Söntgen
1dd1bfe692 stdcxx: add new/delete aligned variants (C++17)
Issue #3921
2020-10-23 15:08:40 +02:00
Josef Söntgen
a74b572e1f stdcxx: force symlinks to allow for re-preparing
Issue #3921
2020-10-23 14:59:56 +02:00
Josef Söntgen
a24911296a stdcxx: adapt header files for testsuite
Issue #3921
2020-10-23 14:59:49 +02:00
Josef Söntgen
563cc07cb0 libports: posix src archive implements posix API
Issue #3921
2020-10-23 14:58:27 +02:00
Josef Söntgen
59f562f627 libc: add symbols needed by testsuite
Issue #3921
2020-10-23 14:58:04 +02:00
Christian Helmuth
5be1c793a5 depot: update recipe hashes 2020-10-23 14:16:38 +02:00
Emery Hemingway
b4076e762c libc: log a message and exit for raise(...)
Fix #3919
2020-10-21 09:14:55 +02:00
Christian Prochaska
405955eaef libc: implement 'posix_memalign()'
Fixes #3915
2020-10-15 15:41:55 +02:00
Christian Prochaska
9cd38a6846 libc: rwlock cleanup
Issue #3912
2020-10-13 14:38:43 +02:00
Christian Prochaska
bf4afefaa1 libc: use semaphore in rwlock implementation
Fixes #3912
2020-10-13 08:21:04 +02:00
Christian Helmuth
f09b0dc224 Improve synchronization in lwip.run
The lynx HTTP GET test was started before the HTTP server was up and
therefore failed on Qemu/PBXA9.

Issue #3874
2020-10-09 16:13:14 +02:00
Christian Prochaska
658030ef49 qt5: update port for qtwebengine improvements
- unlink shared memory files
- lower maximum number of socket pool sockets to reduce chance of file
  descriptor exhaustion
- fix a build dependency which caused sporadic parallel build errors

Fixes #3910
2020-10-09 13:51:26 +02:00
Christian Prochaska
4e8bfed5b1 libc: duplicate the file descriptor on shared 'mmap()' mappings
Fixes #3909
2020-10-09 13:50:35 +02:00
Christian Prochaska
5c47fa0d41 libc: reduce file descriptor lookup exceptions in 'select()'
Fixes #3908
2020-10-09 13:48:23 +02:00
Christian Prochaska
058f2e687c libc: make 'mmap()' address alignment configurable
With this commit, the alignment of anonymous 'mmap()' allocations can be
configured like this:

<config>
  <libc>
    <mmap align_log2="21"/>
  </libc>
</config>

Fixes #3907
2020-10-09 13:47:33 +02:00
Josef Söntgen
7d21335ac9 vfs/oss: VFS plugin for Audio_out access via files
This plugin gives access to the Audio_out session by roughly
implementing a OSS pseudo-device. It merely wrapps the session and does
not provide any resampling or re-coding.

Fixes #3891.
2020-10-09 13:44:27 +02:00
Josef Söntgen
3d2b0cab93 libc: implement SNDCTL I/O control handling
In the same vein as the terminal and block I/O controls, the sound
controls are implemented via poperty files and match the OSS
API ([1] features a nice overview while [2] is v3 and [3] gives
in-depth information on the current v4.x API we eventually might want
to implement).

  [1] https://wiki.freebsd.org/RyanBeasley/ioctlref/
  [2] http://www.opensound.com/pguide/oss.pdf
  [3] http://manuals.opensound.com/developer/

The controls currently implemented are the ones used by the cmus OSS
output plugin, which was the driving factor behind the implementation.
It uses the obsolete (v3) API and does not check if the requested
parameter was actually set, which should be done according to the
official OSS documentation.

At the moment it is not possible to set or rather change any
parameters. In case the requested setting differs from the parameters
of the underlying Audio_out session - in contrast to the suggestion in
the OSS manual - we do not silently adjust the parameters returned
to the callee but outright fail the I/O control operation.

The following list contains all currently handled I/O controls.

  * SNDCTL_DSP_CHANNELS sets the number of channels. We return the
    available channels here and return ENOTSUP if it differs from
    the requested number of channels.

  * SNDCTL_DSP_GETOSPACE returns amount of playback data that can
    be written without blocking. For now it amounts the space left
    in the Audio_out packet-stream.

  * SNDCTL_DSP_POST forces playback to start. We do nothing and return
    success.

  * SNDCTL_DSP_RESET is supposed to reset the device when it is
    active before any parameters are changed. We do nothing and return
    success.

  * SNDCTL_DSP_SAMPLESIZE sets the sample size. We return the
    sample size of the underlying Audio_out session and return ENOTSUP
    if it differs from the requested number of channels.

  * SNDCTL_DSP_SETFRAGMENT sets the buffer size hint. We ignore the
    hint and return success.

  * SNDCTL_DSP_SPEED sets the samplerate. For now, we always return
    the rate of the underlying Audio_out session and return ENOTSUP
    if it differs from the requested one.

This commit serves as a starting point for further implementing the
OSS API by exploring more users, e.g. as VirtualBox/Qt5/SDL2 audio
backend or a more sophisticated progam like sndiod.

Issue #3891.
2020-10-09 13:44:14 +02:00
Christian Helmuth
91f8281618 depot: update recipe hashes 2020-10-09 13:35:57 +02:00
Christian Prochaska
0e01729d77 libc: handle file descriptor allocation errors
Fixes #3906
2020-10-09 13:35:57 +02:00
Piotr Tworek
fe0ad0addb tool: Consolidate qemu nic setup.
Right now the same code dealing with nic setup on qemu is duplicated
in many different run scripts. It makes it unnecesarily complex to
change the existing config or add support for new nic types. Lets move
all this common code to qemu.inc.

Ref #3825
2020-10-09 13:35:57 +02:00
Christian Helmuth
abefca500b libc: fix deadlock in pthread_cond_timedwait/signal()
The deadlock occured with three concurrently running threads: two
waiters calling pthread_cond_timedwait() and one signaller calling
pthread_cond_signal().

If waiter W1 hits its timeout, the signaller may have called
pthread_cond_signal(), detected this waiter and posted the internal
'signal_sem' concurrently. Then, the signaller waits for 'handshake_sem'
to ensure the waiter got woken up.

Waiter W1 can't consume the 'signal_sem' post by
'sem_wait(&c->signal_sem)' because another waiter W2 may have consumed
the post already above in sem_wait/timedwait(). Waiting for a post on
'signal_sem' would block the waiter W1 in perfect deadlock with
signaller on 'handshake_sem'. As W1 also owns 'counter_mutex' in this
situation, waiter W2 would block when trying to aquire 'counter_mutex'
and can't resolve the situation.

So, W1 does nothing in this case and we accept the spurious wakeup on
next pthread_cond_wait/timedwait().
2020-10-09 13:35:56 +02:00
Martin Stein
7feea78991 timeout: rework timeout framework
* get rid of alarm abstraction
* get rid of Timeout::Time type
* get rid of pointer arguments
* get rid of _discard_timeout indirection
* get rid of 65th bit in stored time values
* get rid of Timeout_scheduler interface
* get rid of uninitialized deadlines
* get rid of default arguments
* get rid of Timeout::_periodic
* get rid of Timeout::Raw
* use list abstraction
* only one interface for timeout handlers
* rework locking scheme to be smp safe
* move all method definitions to CC file
* name mutexes more accurate
* fix when & how to set time-source timeout
* fix deadlocks

Fixes #3884
2020-10-09 13:35:56 +02:00
Christian Helmuth
26011a7151 libc: update status for component select handlers
In case of contexts blocked in select() the monitor updates the
file-descriptor status, but if the entrypoint is just blocked for the
select handler, the status must be updated explicitly on
dispatch_select().
2020-10-09 13:35:56 +02:00
Alexander Boettcher
e5fe9c6fc7 qemu-usb: catch exception on already gone devices
Fixes #3893
2020-10-09 13:35:55 +02:00
Josef Söntgen
f53df495db libc: provide 'sys/soundcard.h' header file
Issue #3891.
2020-10-09 13:33:35 +02:00
Josef Söntgen
f3268cade6 libc: split ioctl method
Use one ioctl method for each type of I/O control because by now the
general method will become increasingly long.

Fixes #3890.
2020-10-09 13:33:35 +02:00
Josef Söntgen
27d4cb871f libc: use property files for block ioctl
Like already done for terminal I/O controls use collect the information
by reading property files instead of using the old VFS ioctl interface.

Fixes #3888.
2020-10-09 13:33:35 +02:00
Josef Söntgen
2312ad35dd libc: match ioctl request type to contrib type
There is a type mismatch as in the FreeBSD contrib code the type of the
request is 'unsigned long'. So far, only I/O controls where the request
falls into the signed range where used and this was not a problem.

Some of the SNDCTL requests, however, have the bit set.

Fixes #3887.
2020-10-09 13:33:35 +02:00
Christian Prochaska
85a84f5042 qt5: generate enter events related to popup menus
Fixes #3894
2020-09-18 15:23:45 +02:00
Christian Helmuth
f6337a6446 depot: update recipe hashes 2020-09-18 14:04:56 +02:00
Norman Feske
e0d9a04f67 libc: resolve circular dependency in fork
This patch is a follow-up for the commit "libc: use monitor for fork".
It removes the use of the monitor mechanism from the
'Local_clone_service::close' RPC function because the fork_ep must stay
responsive for the destruction and creation of 'Child' objects.

Issue #3874
2020-09-18 14:04:56 +02:00
Christian Helmuth
c59c266afc depot: update recipe hashes 2020-09-17 14:23:14 +02:00
Christian Helmuth
2eb8c5e21a net: move ascii_to() into Net namespace
The combination of Net::Mac_address and
Genode::ascii_to(Net::Mac_address) required shaky quirks in several
places because GCC is not able to resolve the ascii_to overload if
base/xml_node.h was included to early. The current solution moves the
several ascii_to overloads "closer" to the Net types by putting them
into the Net namespace, where GCC reliably picks them up.

Hence, co-locating the ascii_to() utility with the overload type in the
same scope/namespace is good practice.

This patch removes the now obsolete <nic/xml_node.h> header file.
2020-09-17 10:13:22 +02:00
Christian Prochaska
e0ca250232 libc: support detached pthreads
Fixes #3880
2020-09-17 10:13:20 +02:00
Christian Helmuth
75ba52a52b libc: remove mutex parameter from monitor
Issue #3874
2020-09-17 10:13:20 +02:00
Christian Helmuth
a0a112ffe7 libc: use monitor for fork
Issue #3874
2020-09-17 10:13:20 +02:00
Christian Helmuth
a891b3832c libc: use monitor for pthread join/cancel
Issue #3874
2020-09-17 10:13:20 +02:00
Christian Helmuth
d6f89b285d libc: use monitor for sleep()
Issue #3874
2020-09-17 10:13:20 +02:00
Norman Feske
e9a3f0f095 libc: use monitor for select
This patch simplifies the control flow within the libc kernel by
facilitating the monitor mechanism for the implementation of 'select'.

Issue #3874
2020-09-17 10:13:20 +02:00
Christian Helmuth
52a6cf1412 libc: support creat() 2020-09-09 16:57:34 +02:00
Christian Helmuth
0605180a61 libc: remove legacy kernel functions 2020-09-09 16:57:34 +02:00
Christian Helmuth
ab953a534c libc: remove residues of noux fork support 2020-09-09 16:57:34 +02:00
Christian Helmuth
c649307720 depot: update recipe hashes 2020-08-28 08:29:12 +02:00