[Nel] Some questions about network implementation

Wed, 22 Nov 2000 17:12:32 +0100

Hello !
+Today I have found very interesting library from SGI
+(http://oss.sgi.com/projects/state-threads/)
+It's based on Netscape Portable Runtime library (NSPR)
+and amed on creating high perfomance network applications.
+Look at documentation
+(http://oss.sgi.com/projects/state-threads/docs/st.html)
+>From documentation:
+
+It is contained in 8 source files as opposed to more than 400, but
+provides all the
+functionality that is needed to write efficient IAs on UNIX-like
+platforms.
+
+                     NSPR       State Threads
+ Lines of code     ~150,000      ~3000
+
+ Dynamic library size
+(debug version)
+ IRIX               ~700 KB   ~60 KB
+ Linux             ~900 KB  ~70 KB
+
+State Threads is an application library which provides a foundation for
+writing Internet Applications. To summarize, it has the following
+advantages:
+
+     It allows the design of fast and highly scalable applications. An
+application will scale well with both load and number of CPUs.
+     It greatly simplifies application programming and debugging
+because, as a rule, no mutual exclusion locking is necessary and the
+entire application is free to use static variables and non-reentrant
+library functions.
+
+The library's main limitation:
+     All I/O operations on sockets must use the State Thread library's
+I/O functions because only those functions perform thread scheduling and
+prevent the application's
+     processes from blocking.
+
+
+I'm just wonder, what is the implimenantion design of NeL server-side
+according to the above document ?
+
+
+
+