1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
Contents ⊕
Jau Support Library (C++, Java,
...)
Original
document location .
Git Repository
This project's canonical repositories is hosted on Gothel Software .
Goals
This project aims to provide general C++ and Java collections,
algorithms and utilities - as well as basic concepts to support a Java
JNI binding.
This project was extracted from Direct-BT to
enable general use and enforce better encapsulation.
API Documentation
Up to date API documentation can be found:
Examples
See Direct-BT C++
API Doc .
C++17 and better.
Building Binaries
It is advised to include this library into your main project, e.g. as
a git-submodule.
Then add jaulib/include/ to your C++ include-path and also
add the C++ source files under jaulib/src/ into your build
recipe.
The produced Java libraries are fully functional.
This library's build recipe are functional though, but currently only
intended to support unit testing and to produce a Doxygen API doc.
The project requires CMake 3.13+ for building and a Java JDK >=
11.
Installing build dependencies on Debian (10 or 11):
apt install git
apt install build-essential g++ gcc libc-dev libpthread-stubs0-dev
apt install libunwind8 libunwind-dev
apt install openjdk-11-jdk openjdk-11-jre junit4
apt install cmake cmake-extras extra-cmake-modules
apt install doxygen graphvizFor a generic build use:
CPU_COUNT=`getconf _NPROCESSORS_ONLN`
git clone https://jausoft.com/cgit/jaulib.git
cd jaulib
mkdir build
cd build
cmake -DBUILDJAVA=ON -DBUILDEXAMPLES=ON -DBUILD_TESTING=ON ..
make -j $CPU_COUNT install test docThe install target of the last command will create the include/ and
lib/ directories with a copy of the headers and library objects
respectively in your build location. Note that doing an out-of-source
build may cause issues when rebuilding later on.
Our cmake configure has a number of options, cmake-gui or
ccmake can show you all the options. The interesting ones are
detailed below:
Changing install path from /usr/local to /usr
-DCMAKE_INSTALL_PREFIX=/usrBuilding debug build:
-DDEBUG=ONDisable stripping native lib even in non debug build:
-DUSE_STRIP=OFFDisable using libunwind (default: enabled for all but
arm32, armhf)
-DUSE_LIBUNWIND=OFFOverride default javac debug arguments source,lines:
-DJAVAC_DEBUG_ARGS="source,lines,vars"
-DJAVAC_DEBUG_ARGS="none"Building debug and instrumentation (sanitizer) build:
-DDEBUG=ON -DINSTRUMENTATION=ONUsing clang instead of gcc:
-DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_CXX_COMPILER=/usr/bin/clang++Cross-compiling on a different system:
-DCMAKE_CXX_FLAGS:STRING=-m32 -march=i586
-DCMAKE_C_FLAGS:STRING=-m32 -march=i586To build Java bindings:
-DBUILDJAVA=ONTo build documentation run:
make docCross Build
Also provided is a cross-build
script using chroot into a target system using QEMU User
space emulation and Linux kernel
binfmt_misc to run on other architectures than the host.
You may use our
pi-gen branch to produce a Raspi-arm64, Raspi-armhf or PC-amd64
target image.
Changes
1.0.0
First stable release (TODO)
0.9.0
Add getMonotonicTime() & getWallClockTime(), returning
fraction_timespec
Add sleep_for(), sleep_until() and wait_for() & wait_until()
using fraction, fraction_timespec, as well as choice over clock
type.
Introduce new types: fraction, fraction_timespec; its constants
& literals as well adoption in latch, ringbuffer, service_runner and
simple_timer.
int_math.hpp: Add Integer overflow aware arithmetic, use Integer
Overflow Builtins if available (GCC + Clang)
Refine sign(), invert_sign(), abs() and digits10() template funcs:
Better type and signed/unsigned variant for invert_sign() and abs()
Add stdint literals in namespace jau::int_literals,
e.g. 3_i64 for (int64_t)3 for all stdint
signed and unsigned 8-64 bit wide types
Always add libatomic (will be required for new fraction)
0.8.6
Enhance service_runner and fix
simple_timer, i.e. end waiting if stopped
Disable libunwind on
armhf/arm32 for stability, see
USE_LIBUNWIND cmake variable above
OpenJDK 17 compatible w/o warnings, use if available via build
scripts.
0.8.0
Enhance service_runner: fix using
service_shutdown_timeout_ms(), add join(),
remove service_end_post_notify (leak),
Add simple_timer: A simple timer for timeout and
interval applications, using one dedicated service_runner
thread per instance.
Fix EUI48[Sub] ctor with byte-ptr: Don't swap if given
byte_order == endian::native, we store in native order
uint[128,192,256]_t: Add ctor with given byte array in
native byte order, useful for const initializationSIGSEGV workaround in jau::get_backtrace(..) of
libunwind [1.3 - 1.6.2]'s unw_step(..) using g++ 10.2.1
aarch64: Disable Optimization
0.7.12
git version info: Added post-tag: VERSION_COMMITS and
VERSION_SHA1_SHORT. VERSION_LONG reflects
post-tag and dirty. Added mapping to project version var-names.
0.7.11
Add Java/C++ hexStringBytes(..); Fix Java's bytesHexString(..) path
!lsbFirst; Add unit tests
Fixes for clang++ 11.0.1-2
Added jau::service_runner, a reusable dedicated thread
performing custom user services.
Fix jau::ringbuffer (conditional variable lock)
Fix jau::latch (conditional variable lock) and
test_latch01.cpp
0.7.3
Add to_string(const ordered_atomic<>&),
allowing to skip manual '.load()' using jau::to_string()
etc.
Add jau::latch
ringbuffer: Remove locking mutex before notify_all,
avoid re-block of notified wait() threads.
0.7.2
Add helper_jni: checkAndGetObject(..)
Refine API doc and add build-doc.sh helper script etc
0.7.0
ringbuffer: Add notion of operating threading mode for more
efficancy:
One producer-thread and one consumer-thread (default)
Multiple producer-threads and multiple consumer-threads See
getMultiPCEnabled() and setMultiPCEnabled()
ringbuffer API change: Drop whole NullValue
angle , simplifying.
Drop Value_type [get|peek]*(), use
bool [get|peek]*(Value_type&) instead
Drop NullValue_type template type param and
NullValue_type ctor argument.
Simplifies and unifies single and multi get and put, as well as
testing (motivation).
Adding multi-threading tests w/ value checks in
test_lfringbuffer_a.hpp for
test_lfringbuffer[01-04]
ringbuffer: Drop use_memset non-type template param,
simply use use_memcpy having same semantics of
TriviallyCopyable .
darray: Refine API doc for use_memmove using
TriviallyCopyable and Trivial destructor ...
0.6.1
TOctets: Add convenient memmove , memset and
bzero methods; Ensure all memory ops are either std::
or global namespace ::
0.6.0
Bump minor version due to API change (darray,
cow_darray and ringbuffer)
Add darray and cow_darray initializer list
construction using move-semantics, instead of copy-semantics
(std::initializer_list).
Fix
cow_darray::push_back( InputIt first, InputIt last ): On
storage growth path, push_back must happen on new
storage.
Revised Non-Type Template Parameter (NTTP) of darray,
cow_darray and ringbuffer
Dropped use_realloc, as it is fully deducted
Renamed sec_mem to use_secmem
Enable type traits in user Value_type to deduce
use_memmove and use_secmem
Ringbuffer also uses darray's NTTP use_memmove and
use_secmem
Ringbuffer uses placement-new for better efficacy (dropped C++ array
default init)
Use explicit constexpr if: darray,
ringbuffer, endian conversion
[le|be|cpu]_to_[le|be|cpu]() and
bit_cast().
POctet: Add explicit copy-ctor with given capacity and add TROOctets
default ctor
EUI48[Sub] C++/Java and POctets: Better API doc re byte order
0.5.0
Bump minor version due to API change
EUI48Sub: Add required endian conversion for byte stream ctor (C++
and Java)
EUI48[Sub]: Add endian awareness, also fixes indexOf() semantics
(C++ and Java)
Octets: Enhance API doc
Octets/ringbuffer: Use std method names for sizes
Octets: Expose endian awareness, pass either endian::little or
endian::big at ctor
darray: Support immutable type, i.e. 'const Type'
0.4.7
Add uuid_t::equivalent(..) method fo relaxed comparison on different
uuid_t types
Added uuid_t::getTypeSizeString()
Fix jau::get_backtrace(..) and adjusted ERR_PRINT and ABORT
0.4.3
Moved EUI48, EUI48Sub (C++/Java) and
uuid_t, Octets (C++) from
Direct-BT for general use.
0.4.1
ringbuffer: Added block access, fast-path for integral types,
bool get*(Value_type& v), ..
ringbuffer: Special NullValue_type template type and
value (ctor) handling
ringbuffer: Add 'Size_type waitForElements(..)' and fix 'Size_type
waitForFreeSlots(..)'
ringbuffer: get() and getBlocking() takes
size of dest buffer and minimum count to wait for, return received
elements.
ringbuffer: syncWrite and syncRead member semantic cleanup,
Added uint64_t getWallClockSeconds()
0.3.0
Consolidate conversion to hex and decimal string:
to_hexstring(Type) and to_decstring(Type),
dropped <type>[Hex|Dec]String(..)
All get/set functions are exposed as overloaded templates
[get|put]_value(..), so is to_hex_string(..).
All byte-order conversion and get/set functions are of 'constexpr'
now.
Add constexpr 'enum class endian', 'pointer_cast()' and
'bit_cast()'.
Offering JaulibSetup.cmake for parent projects for aligned
setup.
Java: Working JNI-Lib bootstraping w/ fat-jar. Passing all unit
tests.
Java: Generating jar and source-zip packages (normal + fat); Enable
full junit testing.
Finalized jau::cow_darray and its iterator API. All write API
entries were added to the mutable iterator.
Introduce jau::callocator for jau::darray to support realloc instead
of alloc, copy and dtor
Passed gcc-10, gcc-11, clang-9 and clang-11
Passed detailed cow_iterator test.
jau::cow_vector is marked deprecated, as only jau::cow_darray can
give certain guarantees using jau::darray
jau::cow_vector is aligned to jau::cow_darray and also uses
jau::cow_ro_iterator and jau::cow_rw_iterator
Added jau::darray and jau::cow_darray (using jau::cow_ro_iterator
and jau::cow_rw_iterator)
Test: Using imported Catch2 (v3-devel) for C++ unit testing
Reduced ringbuffer to single implementation, adding
move-operations
Added basic_types.hpp: 'to_decimal_string(..)' implementing
DecString() inlines.
Use nsize_t and snsize_t where appropriate for smaller
footprint
Have ringbuffer's Size_type parameterized
Bugfixes and added cow_array
0.2.1
Added cow_vector and sc_atomic_critical
Passed GCC all warnings, compile clean
Passed GCC sanitizer runtime checks
Passed valgrind's memcheck, helgrind and drd validating no memory
leak nor data race or deadlock using dbt_scanner10
Added native de-mangled backtrace support using libunwind
and and abi::__cxa_demangle
0.1.0
Extraction from Direct-BT
