Free portable library software for linux

Portable Coroutine Library (PCL) implements the low level functionality for coroutines. For a definition of the term coroutine see The Art of Computer Programming by Donald E. Knuth.
Coroutines are a very simple cooperative multitasking environment where the switch from one task to another is done explicitly by a function call. Coroutines are a lot faster than processes or threads switch, since there is no OS kernel involvement for the operation.
Also coroutines require much less OS resources than processes of threads. The idea of writing this library started when I was testing Linux epoll functionality and performance.
I initially started using the coro library by E. Toernig and I found the library very interesting. It was simple and yet powerful. The limitations of the coro library were both non portability and crashes when not used together with certain versions of gcc.
So I decided to write a new library to address the problems aforementioned by also taking portable context switching ideas from the GNU Pth library. This library is easily portable on almost every Unix system and on Windows.
It can use either the ucontext.h functionalities ( getcontext()/makecontest()/swapcontext() ) or the standard longjmp()/setjmp().
Enhancements:
- This release fixes a shared library soname generation error that was missing the library version information.

The Configuration File Library (CFL) is a collection of routines for manipulating configuration files. The project is a portable library fully written from scratch in pure ANSI C.

It is designed to offer for C programmers common routines for manipulating configuration text files.

C++ Portable Types Library (PTypes) is a simple alternative to the STL that includes multithreading and networking. C++ Portable Types Library (PTypes) defines dynamic strings, variants, character sets, lists and other basic data types along with portable thread and synchronization objects, IP sockets and named pipes. Its main `target audience is developers of complex network daemons, robots or non-visual client/server applications of any kind.
PTypes defines simple and intuitive interfaces and differs from the STL in fairly moderate use of templates. The library is portable across many modern operating systems (currently FreeBSD, Linux, SunOS, Mac OS X and Windows). All platform-dependent issues are hidden inside. A simple web server called wshare is included in the package to demonstrate the full power of the library.
And finally, PTypes is open and free.
Main features:
- Threads and synchronization primitives solve the vital problem of diversity of the threading APIs on different platforms. The library also offers message queues and job queues as additional methods of thread synchronization and maintenance.
- IP socket classes and utilities provide complete IP-based framework for both client-side and server-side programming. Combined with PTypes multithreading, these classes can be used for designing complex non-visual applications, such like network daemons or web robots.
- Dynamic strings, variants, character sets, date/time type and various kinds of dynamic and associative arrays: Delphi programmers will find them very similar to the ones in their favorite language. The collection of these basic data types may be useful, among other things, for building compilers and interpreters for higher-level languages.
- Streaming interfaces provide buffered I/O with simple and powerful text parsing methods. A strictly defined syntax for a given text format or a formal language can be represented by calls to PTypes token extraction methods. The unified streaming interface is applicable to files, named pipes and network sockets.
- Special thread class with enhanced functionality called unit. Units have their own main() and input/output plugs; they can be connected to each other within one application to form pipes, like processes in the UNIX shell.
- Finally, everything above is portable: all platform-dependent details are hidden inside.
Enhancements:
- Added support for HP-UX
- Compilation problems solved on *BSD systems (64-bit seek issue)
- Several MacOS X compilation problems solved (socklen_t, libtool)
- MSVC project files are now in the new VC7+ format (.sln, .vcproj)
- Dropped support for BSDi, CygWin and also the Borland C++ compiler.

TCB::Library provides a database-backed book library package for DBIx::Frame.

TCB::Library is a DBIx::Frame object written to keep track of library books at the TCB Group at UIUC.

It provides a Web interface for adding books to the library, for users to check out and return them, and for reminder messages to be sent out periodically to list what books are checked out.

This is actually a fairly basic function of research groups, but doesnt have a standard software package.

Zild Database Library implements a small and easy to use database API with an easy to use API.
Main features:
- ability to connect to multiple database systems
- zero runtime configuration
- ability to connect using a URL scheme
- thread-safe connection pooling.

CVS Perl library is a Perl module which is a wrapper around the CVS command with an object-oriented interface.

Installation:

To install this module type the following:

perl Makefile.PL
make
make test
make install

conexus is a generalized C++ I/O library that includes support for BSD sockets, serial/TTY, and packet capture (via pcap).

conexus library utilizes sigc++ for object communication. A companion library, conexusgtk, provides a set of gtkmm widgets.