lwp: remove preemption support

[openafs.git] / doc / protocol / rx-spec.h

diff --git a/doc/protocol/rx-spec.h b/doc/protocol/rx-spec.h
index 9a243b8..f8e42c1 100644 (file)
--- a/doc/protocol/rx-spec.h
+++ b/doc/protocol/rx-spec.h
@@ -582,42 +582,6 @@
  * taking place. This is useful if you are using another package that uses the
  * fast time facility. 
  * 
- *     \subsection sec2-2-6 Section 2.2.6: Preemption 
- * 
- * \par
- * The preemption package provides a mechanism by which control can pass
- * between lightweight processes without the need for explicit calls to LWP
- * DispatchProcess(). This effect is achieved by periodically interrupting the
- * normal flow of control to check if other (higher priority) procesess are
- * ready to run. 
- * \par
- * The package makes use of the BSD interval timer facilities, and so will
- * cause programs that make their own use of these facilities to malfunction.
- * In particular, use of alarm(3) or explicit handling of SIGALRM is
- * disallowed. Also, calls to sleep(3) may return prematurely. 
- * \par
- * Care should be taken that routines are re-entrant where necessary. In
- * particular, note that stdio(3) is not re-entrant in general, and hence
- * multiple threads performing I/O on the same fiLE structure may function
- * incorrectly. 
- * \par
- * An example pseudocode routine illustrating the use of this preemption
- * facility appears below. 
- * 
- * \code
- * #include <sys/time.h> 
- * #include "preempt.h" 
- *     ...  struct timeval tv; 
- *     LWP_InitializeProcessSupport( ... ); 
- *     tv.tv_sec = 10; 
- *     tv.tv_usec = 0; 
- *     PRE_InitPreempt(&tv); 
- *     PRE_PreemptMe(); ... 
- *     PRE_BeginCritical(); ... 
- *     PRE_EndCritical(); ... 
- *     PRE_EndPreempt(); 
- * \endcode
- * 
  *     \section sec2-3 Section 2.3: Interface Specifications 
  * 
  *     \subsection sec2-3-1 Section 2.3.1: LWP