Commit Graph

14 Commits

Author SHA1 Message Date
Norman Feske
19c13877ca Replace use of 'typedef' by 'using'
Issue #5227
2024-07-02 12:00:11 +02:00
Norman Feske
24342db476 base/signal.h: remove pointers from API
This patch updates the signal API to avoid raw pointers, and
replaces the Context_already_in_use and Context_not_associated
exceptions by diagnostic messages.

Fixes #5247
2024-06-20 12:56:19 +02:00
Josef Söntgen
02c8d73426 timer-session: decrease min timeout to 1 ms
Depending on the client and use-case the current minimal timeout
value of 5 ms could be too high, lowering it to 1 ms stays within
the limit imposed by most timer drivers.

Issue #4990.
2023-09-29 12:17:45 +02:00
Norman Feske
9debad4e91 Remove format strings from connection types
Issue #2064
2023-03-13 14:32:37 +01:00
Johannes Schlatow
735abca1b6 nic_router: avoid marginal timeout updates
The link dissolve timeout is updated for every packet, which leads to
trigger_once() RPCs that only marginally change the scheduled timeout but
significantly slow down the packet throughput.

genodelabs/genode#4555
2022-08-10 13:33:02 +02:00
Norman Feske
49481dd3fb timer: restore semantics of periodic timeout 0
The 'Timer::Session::trigger_periodic' RPC function used to accept 0 as
a way to de-schedule the periodic processing. Several components such as
nitpicker relied on this special case. In "timeout: rework timeout
framework", the value of zero was silently clamped to 1, which has the
opposite effect: triggering signals at the maximum rate. This results in
a visible effect in Sculpt where the leitzentrale-nitpicker instance
produces a constant load of 2% CPU time.

This patch restores the original timer semantics by

- Documenting it in timer_session.h,

- Handling the case explicitly in the timer implementation, and

- Replacing the silent clamping of the unexpected value 0 passed
  to the timeout framework by a diagnostic error message.

Issue #3884
2021-04-20 12:03:03 +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
Alexander Boettcher
60106ac2c8 base: avoid deadlock and page fault
Fixes #3830
2020-08-25 11:42:29 +02:00
Alexander Boettcher
3956530634 base: use Mutex/Blockade
Issue #3612
2020-04-17 12:40:12 +02:00
Stefan Kalkowski
18dbd75860 base: explictly target entrypoint in timer session
Fix #3548
2019-11-21 14:29:36 +01:00
Martin Stein
181c78d482 timeout: use uint64_t for all plain time values
This enforces the use of unsigned 64-bit values for time in the duration type,
the timeout framework, the timer session, the userland timer-drivers, and the
alarm framework on all platforms. The commit also adapts the code that uses
these tools accross all basic repositories (base, base-*, os. gems, libports,
ports, dde_*) to use unsigned 64-bit values for time as well as far as this
does not imply profound modifications.

Fixes #3208
2019-05-06 16:15:26 +02:00
Norman Feske
5ed5fddb7c base/os: remove deprecated APIs
This commit removes APIs that were previously marked as deprecated. This
change has the following implications:

- The use of the global 'env()' accessor is not possible anymore.
- Boolean accessor methods are no longer prefixed with 'is_'. E.g.,
  instead of 'is_valid()', use 'valid()'.
- The last traces of 'Ram_session' are gone now. The 'Env::ram()'
  accessor returns the 'Ram_allocator' interface, which is a subset of
  the 'Pd_session' interface.
- All connection constructors need the 'Env' as argument.
- The 'Reporter' constructor needs an 'Env' argument now because the
  reporter creates a report connection.
- The old overload 'Child_policy::resolve_session_request' that returned
  a 'Service' does not exist anymore.
- The base/printf.h header has been removed, use base/log.h instead.
- The old notion of 'Signal_dispatcher' is gone. Use 'Signal_handler'.
- Transitional headers like os/server.h, cap_session/,
  volatile_object.h, os/attached*_dataspace.h, signal_rpc_dispatcher.h
  have been removed.
- The distinction between 'Thread_state' and 'Thread_state_base' does
  not exist anymore.
- The header cpu_thread/capability.h along with the type definition of
  'Cpu_thread_capability' has been removed. Use the type
  'Thread_capability' define in cpu_session/cpu_session.h instead.
- Several XML utilities (i.e., at os/include/decorator) could be removed
  because their functionality is nowadays covered by util/xml_node.h.
- The 'os/ram_session_guard.h' has been removed.
  Use 'Constrained_ram_allocator' provided by base/ram_allocator.h instead.

Issue #1987
2019-02-26 14:44:15 +01:00
Norman Feske
b3727a9b46 Add missing override annotations
Issue #3159
2019-02-19 11:12:11 +01:00
Norman Feske
bf62d6b896 Move timer from os to base repository
Since the timer and timeout handling is part of the base library (the
dynamic linker), it belongs to the base repository.

Besides moving the timer and its related infrastructure (alarm, timeout
libs, tests) to the base repository, this patch also moves the timer
from the 'drivers' subdirectory directly to 'src' and disamibuates the
timer's build locations for the various kernels. Otherwise the different
timer implementations could interfere with each other when using one
build directory with multiple kernels.

Note that this patch changes the include paths for the former os/timer,
os/alarm.h, os/duration.h, and os/timed_semaphore.h to base/.

Issue #3101
2019-01-14 12:33:57 +01:00