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2013-10-13bus: make sure we don't try to malloc 0 bytesZbigniew Jędrzejewski-Szmek
2013-10-13Fix write-only use of a few variablesZbigniew Jędrzejewski-Szmek
Since the invention of read-only memory, write-only memory has been considered deprecated. Where appropriate, either make use of the value, or avoid writing it, to make it clear that it is not used.
2013-10-13bus: fix access to unitialized variable in error pathZbigniew Jędrzejewski-Szmek
src/machine/machined-dbus.c:237:13: warning: Branch condition evaluates to a garbage value if (m) ^
2013-10-13Never call qsort on potentially NULL arraysZbigniew Jędrzejewski-Szmek
This extends 62678ded 'efi: never call qsort on potentially NULL arrays' to all other places where qsort is used and it is not obvious that the count is non-zero.
2013-10-11bus: properly implement logic for generating ↵Lennart Poettering
InterfacesAdded/InterfacesRemoved signals of ObjectManager
2013-10-11bus: in GetManagedObjects() only return each object once.Lennart Poettering
2013-10-11bus: unify code to find parents of an object path withLennart Poettering
2013-10-11bus: properly generate GetAll replyLennart Poettering
2013-10-11bus: add sd_bus_message_append_strv() to easily add a NULL terminated string ↵Lennart Poettering
array to a message
2013-10-11bus: make sure introspection can be generated correctly with NULL method ↵Lennart Poettering
signatures
2013-10-11bus: beef up parameter checking in vtable handlingLennart Poettering
2013-10-11bus: beef up parameter checking of convenience callsLennart Poettering
2013-10-11bus: don't rely on gccisms/c11 in public header files.Lennart Poettering
One day sd-bus.h should become a public header file. We generally try to be conservative in language features we use in public headers (much unlike in private code), hence don't make use of anonymous unions in structs for the vtable definitions.
2013-10-11bus: split up overly long sd-bus.c into three filesLennart Poettering
2013-10-11bus: if a a Set() vtable callback of a writable is left NULL, try to do the ↵Lennart Poettering
right thing automatically
2013-10-11bus: automatically do a NOP reply when a NULL callback is specified for a ↵Lennart Poettering
method in a vtable Also, allow specifiying NULL as signature in vtables equivalent to "" for empty parameter lists.
2013-10-11bus: when NULL is specified as property callback, automatically handle ↵Lennart Poettering
serialization on Get()
2013-10-11bus: make PropertiesChanged emission workLennart Poettering
2013-10-11bus: allow specifying NULL as type string when we want to construct messages ↵Lennart Poettering
with no payload
2013-10-11bus: make GetManagedObjects() workLennart Poettering
2013-10-11event: add apis to query the timestamp of the event currently processedLennart Poettering
2013-10-11event: move all library calls over to new assert_return() macroLennart Poettering
2013-10-11event: add sd_event_source_get_child_pid() call to query the PID of a child ↵Lennart Poettering
event source
2013-10-11event: rename the "mute" field of event sources to "enabled"Lennart Poettering
In addition, the states "UNMUTED" and "MUTED" become "ON" and "OFF". This has the benefit that a possible value of this field is not identical to its name, thus minimizing confusion.
2013-10-11event: implement quit handlersLennart Poettering
Quit handlers are executed when an event loop is terminated via sd_event_request_quit(). They are in a way atexit() handlers that are executed in a well-defined environment, time and thread: from the event loop thread when the event loop finishes.
2013-10-10event: refuse operation if the caller tries to reuse an event loop after a ↵Lennart Poettering
fork()
2013-10-10event: add timer accuracy/coalescing logicLennart Poettering
In order to improve energy consumption we should minimize our wake-ups when handling timers. Hence, for each timer take an accuracy value and schedule the actual wake-up time somewhere between the specified time and the specified timer plus the accuracy. The specified time of timer event sources hence becomes the time the handler is called the *earliest*, and the specified time plus the accuracy the time by which it is called the *latest*, leaving the library the freedom to schedule the wake-up somewhere inbetween. If the accuracy is specified as 0 the default of 250ms will be used. When scheduling timeouts we will now try to elapse them at the same point within each second, across the entire system. We do this by using a fixed perturbation value keyed off the boot id. If this point within a second is not in the acceptable range, we try again with a fixed time within each 250ms time step. If that doesn't work either, we wake up at the last possible time.
2013-10-10bus: fix duplicate comparisonsTero Roponen
Testing for y > x is the same as testing for x < y.
2013-10-10bus: add minimal event loop APILennart Poettering
So far we tried to use epoll directly wherever we needed an event loop. However, that has various shortcomings, such as the inability to handle larger amounts of timers (since each timerfd costs one fd, which is a very limited resource, usually bounded to 1024), and inability to do priorisation between multiple queued events. Let's add a minimal event loop API around epoll that is suitable for implementation of our own daemons and maybe one day can become public API for those who desire it. This loop is part of libsystemd-bus, but may be used independently of it.
2013-10-09bus: fix missing initializationLennart Poettering
2013-10-09bus: fix GetAll() userdata passingLennart Poettering
2013-10-09bus: don't require that if a child object node exists its parent node must tooLennart Poettering
2013-10-09bus: fix synthetic error messagesLennart Poettering
2013-10-09libsystemd-bus: add lightweight object vtable implementation for exposing ↵Lennart Poettering
objects on the bus This adds a lightweight scheme how to define interfaces in static fixed arrays which then can be easily registered on a bus connection. This makes it much easier to write bus services. This automatically handles implementation of the Properties, ObjectManager, and Introspection bus interfaces.
2013-10-02dbus: fix return value of dispatch_rqueue()Lennart Poettering
2013-10-02bus: fix potentially uninitialized memory accessLennart Poettering
2013-08-22remove hasprefix(), use startswith()Shawn Landden
2013-07-22bus: update for kdbus changesKay Sievers
2013-06-20Add hasprefix macro to check prefixes of fixed lengthZbigniew Jędrzejewski-Szmek
2013-06-05libsystemd-bus/bus-kernel.h: set MEMFD_MIN_SIZE to 128kHarald Hoyer
2013-06-05test-bus-kernel-benchmark: corrected output for memfd bisectHarald Hoyer
2013-06-05bus: benchmark - adjust printf and MAX_SIZEKay Sievers
2013-06-04bus: unmap memfd retrieved from the memfd cacheKay Sievers
2013-06-04bus-benchmark: add performance data output modeKay Sievers
- for now, comment out munmap() check to enable memfd passing - print tab-separated values and header - add memcpy() to fill the memfd, to produce real-world results $ ./test-bus-kernel-benchmark SIZE COPY MEMFD 4194304 370 370 2097152 810 810 1048576 2130 2130 524288 4090 4090 262144 7080 7080 131072 11380 11380 65536 17140 17140 98304 13930 13930 114688 12890 12890 122880 12350 12350 126976 12150 12150 129024 12170 12170 130048 12040 12040 130560 12080 12080 130816 12010 12010 130944 12020 12020 131008 12040 12040 131040 12050 12050 131056 12010 12010 131064 12060 12060 131068 12040 12040 131070 11310 11310 131069 11420 11420 Copying/memfd are equally fast at 131068 bytes $ ./test-bus-kernel-benchmark chart SIZE COPY MEMFD 1 35570 23690 2 36470 23680 4 36160 23520 8 36600 22220 16 33900 20830 32 33990 21360 64 33480 21280 128 34050 20910 256 32950 21750 512 34730 21900 1024 33810 22890 2048 36280 23110 4096 30790 21610 8192 29380 21100 16384 26880 19820 32768 22510 17980 65536 17270 15180 131072 11400 11420 262144 7140 8270 524288 4090 5050 1048576 2110 2780 2097152 800 1140 4194304 350 580
2013-06-04bus-benchmark: lower loop time to 100ms by default, to ensure "make check" ↵Lennart Poettering
finishes more quickly To get useful results you should however specify a much longer time on the command line.
2013-06-04test: determine number of transactions per second rather than time per ↵Lennart Poettering
transaction This way the measurements are not skewed by twoo short total measurement times, and results become stabler.
2013-05-31bus: update for kdbus changesKay Sievers
2013-05-30bus: update for kdbus changesKay Sievers
2013-05-29bus: rework benchmark test to actually yield useful resultsLennart Poettering
2013-05-29bus: when adding memfds to cache and we shorten them, make sure to unmap the ↵Lennart Poettering
remainder
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