Stylistic changes to make HTML generation easier.

This commit is contained in:
Andreas Jaeger 2001-05-05 14:43:14 +00:00
parent aa2e3ec386
commit bcd249f638

8
FAQ.in
View File

@ -1602,24 +1602,24 @@ this should be necessary.
supports synchronous context switches only. There are several reasons for
this:
o UNIX provides no other (portable) way of effecting a synchronous
- UNIX provides no other (portable) way of effecting a synchronous
context switch (also known as co-routine switch). Some versions
support this via setjmp()/longjmp() but this does not work
universally.
o As defined by the UNIX '98 standard, the only way setcontext()
- As defined by the UNIX '98 standard, the only way setcontext()
could trigger an asychronous context switch is if this function
were invoked on the ucontext_t pointer passed as the third argument
to a signal handler. But according to draft 5, XPG6, XBD 2.4.3,
setcontext() is not among the set of routines that may be called
from a signal handler.
o If setcontext() were to be used for asynchronous context switches,
- If setcontext() were to be used for asynchronous context switches,
all kinds of synchronization and re-entrancy issues could arise and
these problems have already been solved by real multi-threading
libraries (e.g., POSIX threads or Linux threads).
o Synchronous context switching can be implemented entirely in
- Synchronous context switching can be implemented entirely in
user-level and less state needs to be saved/restored than for an
asynchronous context switch. It is therefore useful to distinguish
between the two types of context switches. Indeed, some