Search Results for "mutex"
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Showing 35 open source projects for "mutex"
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1
Ristretto
A high performance memory-bound Go cache
...We looked around for a solution, but we couldn’t find a great one. We then tried using a sharded map, with shard eviction to release memory, which caused us memory issues. We then repurposed Groupcache’s LRU, using mutex locks for thread safety. After having it around for a year, we noticed that the cache suffered from severe contention. A commit to remove that cache caused our query latency to dramatically improve by 5-10x. In essence, our cache was slowing us down! We concluded that the concurrent cache story in Go is broken and must be fixed. ... -
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cocoyaxi
A go-style coroutine library in C++11 and more
cocoyaxi (co for short), is an elegant and efficient cross-platform C++ base library. It contains a series of high-quality base components, such as a go-style coroutine, coroutine-based network programming framework, command line, and config file parser, high-performance log library, unit testing framework, JSON library, etc. co has implemented a go-style coroutine, which has the following features. Multi-thread scheduling, the default number of threads is the number of system CPU cores.... -
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libthreadar
C++ library to manage threads and any type of exception between them
...It also handles exceptions thrown from a thread and propagated to another one, when the later is calling the thread::join() method. This let one manage exceptions as simply as it is in C++ single threaded context. Additionally, all the related objects around multi-threading (mutex, semaphore, ...) are provided, under easy to use and independent C++ classes. Other more advanced classes ease the information exchange between threads like scattering and gathering a collection of objects between many threads, or asynchonous buffered information exchanges between two threads. All these C++ classes are easy to use and fully documented -
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ulttiny
tiny User Level Threads library
The ulttiny library is small, easy to use and very fast. It's optimized especially for scenarios where tasks and task groups are dynamically and concurrently created on the fly. -
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5
NaviServer
NaviServer, a high performance web server written in C and Tcl
NaviServer is an extensible web server suited to create scalable websites and services. Originally based on AOLserver (http://www.aolserver.com), the ongoing development is done independently under Mozilla Public License by a core group of people that use it for their businesses and by other supporters. Features: High performance multi-threaded architecture, massively scalable and extensible, many modules, dynamic scripted pages (ADP), caching functions (static files, Tcl byte code,... -
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Scheduler Simulation
Thread Scheduler with custom asynchronous messaging in VC++
Custom thread scheduler with custom data-structure and scheduling algorithm. Custom Mutex, Semaphore implementation and asynchronous messaging system that combines Observer and Visitor patterns. System is implemented on top of Windows system and not ported to any hardware, uses Windows thread for context saving. Code also has tested common data-structure implementation. System is designed for multi-core platform. System is tested at basic level, not fully. -
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ringBufU
Ring-Buffer library in C, includes support of multithreading
A Ring-Buffer instance could be used with element types - char - long - long long - void* . Focus is on a hardened SW structure with buffer-instance-pointer check (not very fast but more secure). Some features are globally choosable on compile-time (e.g. switch multithread support off completely to have faster access). Note: User Interface is for Test and Tutor Code only. -
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Lnkdlst
Single sided linked list (kind of lib with test-code, C, C++ and java)
... - OAList01: Object-Kind of a predefined pre-reserved List with X Elements (with constant user-data size), with secur modify functions and option to use locks (POSIX: mutex). Supporting a BusyList and a IdleList for easy build of e.g. a FIFO without need of much time for mem-allocation. - Release-Notes see uws-Lnkdlst-readme.txt in the tar.gz file(s) and in „Files“. -
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sysbench
Scriptable database and system performance benchmark
sysbench is a scriptable multi-threaded benchmark tool based on LuaJIT. It is most frequently used for database benchmarks, but can also be used to create arbitrarily complex workloads that do not involve a database server. extensive statistics about rate and latency is available, including latency percentiles and histograms. Low overhead even with thousands of concurrent threads. sysbench is capable of generating and tracking hundreds of millions of events per second. New benchmarks can be... -
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10
Pharos
RTOS for Secure, Safe and Real-Time Systems
Pharos is a free open-source RTOS for secure, safe and real-time systems with the following characteristics: - Memory and enhanced time partitioning (TSP) - Native support for sporadic, periodic and aperiodic threads - Fixed-priority preemptive scheduler - Execution time protection (threads are prevented from executing for more time than they are configured to) - Small size (full image has ~100 to 300KiB text, ~30KiB data) - Hard real-time determinism - Fast critical sections -... -
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Like OS
Real time preemptive embedded multi-thread kernel
This project is now in the research and development stage. It is intended for very small microcontrollers with a single processor and represent simple multithreading kernel what written by C language. Is planning create implementations for AVR8 and STM8, may be. Now it is suspended until better time. -
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ECS:Python
Light-weight C++ library for embedding Python into C++
...Python can be downloaded from: www.python.org/download What's new in v3.0: * Fixed x64 pointer types. * Added CI and unit tests. * Cleaned up project structure and code formatting. * Switch to C++11 std::mutex. -
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JThread - a OO, Java like threading library for C++ ! System independent OO architecture for thread and synchronising classes - separates between operating system independent interfaces and dependent implementations.
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SimpleRTOS
Simple RTOS for embedded systems
SimpleRTOS is an RTOS based on concepts from FreeRTOS but with a much smaller memory footprint. It doesn't rely on dynamic memory allocation, although it can use it if necessary. Currently there are ports for PIC18F, dsPIC/PIC24, PIC32 (MX and MZ) and Atmel SAM3 (ARM Cortex-M3) devices. The PIC32 and SAM3 ports are already in use for production projects. dsPIC/PIC24 port seems to be OK. although no real project was tested with it and PIC18 port is still a little buggy. There are plans... -
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debug_mutex
c/c++ debug-mutex library
A cross-platform implementation of a mutex, that automatically checks for everything, you might be doing wrong: - DeadLocks - Invalid mutex leave order - Thread Shutdown, while still holding mutex locks - Destroying a locked mutex - (Un)Locking a destroyed mutex - UnLocking an unlocked mutex - UnLocking an mutex locked by another thread - Locking a non-recursive, locked mutex - Not destroying all mutexes before application termination Every abnormal produces a console output with file and line information about were it is located and why it happened. ... -
16
libstdos
The base libraries of OSs
The project is base libraries of OSs(windows, linux, etc.), include pipe, thread, mesg, mutex and so on, it support the libraries of most OSs for application, so developers can create apps and don't care about the details of operation systems -
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2D_Game_Example_CPP
C++, C#, modular design, udp, xml, mutithreading, SDL1.2, tinyxml
Sample code demonstrates: - good design and architecture based on modular separation of concerns that allows different modules to be easily distributed in different combinations - clean coding and good organization of files and projects - simple 2D game renderer with animation of movements of characters - game modules are active objects(can run in separate threads) and communication between modules is via message queues protected with mutex - demonstrating safe usage of multithreading... - xml is used to serialize maps of objects and initial positions of agents for different level - networking via udp... udp server and client are configurable to transfer either binary data or xml data (binary data transfer is faster but xml is useful e.g. to communicate with game editor that is written in C# - agents with simple AI behavior - agents are wondering around and start chasing user when he is in proximity - basic knowledge of C# (game editor is implemented in C# -
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The Micro C++ Library (libmicxx) is a small set of portable and easy to use classes providing core features commonly used in modern applications. It is based completely on the Standard C++ Template Library (STL).
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CLIPSwl
CLIPS with lock support. CLIPS for safely handling simultaneous access
...CLIPS(ver. 6.24) is unsafe when access simultaneously occurs at the same environment, because the environment data of CLIPS are not protected for simultaneous access. We modified the CLIPS (ver. 6.24) to support lock/unlock functions in a flexible way. CLIPSwl doesn't use complicated logic such as platform-independent mutex, but newly defines 4 abstract functions (i.e. using function pointers) for allocating, acquiring, releasing and deallocating locks of the environment data. Users may define their own functions that fit for their system by using their platform-dependent mutex. CLIPSwl also support the safe string-related functions treating the rules, and refining the warning parts of the code when compiling with gnu g++ compiler. -
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UIRepo++
User Interface Repository for C++
...Items are keyed by either int or string, which would normally be the identifiers of the related window controls (but of course any type of data could be stored). UIRepo should give faster data access than searching arrays or lists. It includes optional mutex locks for use in a multi-threaded environment. Example multi-threaded implementations for wxWidgets and .NET are included in the download. -
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versaloon
Universal programmer/debugger. Universal embedded software framework.
...And it will, if implemented, support more then 10 kinds of target chips, provide drivers for more than 100 pheripherial chips, provide generic software stacks(including USB, Wifi...), provide an featured FSM system(with semaphore, mutex support). Versaloon is also a USB dongle providing JTAG, SWD, SPI, IIC, GPIO, PWM, MicroWire, USART, EBI and so on. -
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EpLibrary
Visual C++ Utility Library
* EpLibrary project in this site is not maintained anymore. * The project has been moved to https://github.com/juhgiyo/EpLibrary EpLibrary is a utility library for Visual C++. The features includes: - Math Framework - Enhanced Binary Search - Sort - Stream Framework - Container Framework - Simple Debugger Framework - FileSystem Framework - Other Frameworks - Server/Client Template Framework - System Framework - Thread System For detailed documentation,... -
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CooCox CoOS is a free and open-source embedded real-time multi-task OS specially for ARM Cortex M series.
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This project aims to create a Python SQLite based data offline/online analytics program targetted mainly on web analytics. The main development would involve a complete python powered (C/C++ intermediate wrappers if required) sqlite analysis engine.
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