define _HPUX_SOURCE under HP-UX, otherwise many things are not defined in standard...

[wxWidgets.git] / docs / latex / wx / thread.tex

diff --git a/docs/latex/wx/thread.tex b/docs/latex/wx/thread.tex
index 8bac6f84bd045c433492d43c066d99a1d6ecdfc9..537f574b27d1946760e0b835c9baf3e7ea58046f 100644 (file)
--- a/docs/latex/wx/thread.tex
+++ b/docs/latex/wx/thread.tex
@@ -84,7 +84,22 @@ stack.
 Creates a new thread. The thread object is created in the suspended state, and you
 should call \helpref{Run}{wxthreadrun} to start running it.  You may optionally
 specify the stack size to be allocated to it (Ignored on platforms that don't
 Creates a new thread. The thread object is created in the suspended state, and you
 should call \helpref{Run}{wxthreadrun} to start running it.  You may optionally
 specify the stack size to be allocated to it (Ignored on platforms that don't

-support setting it explicitly, eg. Unix).
+support setting it explicitly, eg. Unix system without
+\texttt{pthread\_attr\_setstacksize}). If you do not specify the stack size,
+the system's default value is used.
+
+{\bf Warning:} It is a good idea to explicitly specify a value as systems'
+default values vary from just a couple of KB on some systems (BSD and
+OS/2 systems) to one or several MB (Windows, Solaris, Linux). So, if you
+have a thread that requires more than just a few KB of memory, you will
+have mysterious problems on some platforms but not on the common ones. On the
+other hand, just indicating a large stack size by default will give you
+performance issues on those systems with small default stack since those
+typically use fully committed memory for the stack. On the contrary, if
+use a lot of threads (say several hundred), virtual adress space can get tight
+unless you explicitly specify a smaller amount of thread stack space for each
+thread.
+

 
 \wxheading{Return value}
 
 
 \wxheading{Return value}
 


@@ -203,11 +218,10 @@ The following priorities are defined:
 
 Returns \true if the thread is alive (i.e. started and not terminating).
 
 
 Returns \true if the thread is alive (i.e. started and not terminating).
 

-Note that this function can only be saely used with joinable threads, not
+Note that this function can only safely be used with joinable threads, not

 detached ones as the latter delete themselves and so when the real thread is
 detached ones as the latter delete themselves and so when the real thread is

-not alive any longer it is not possible to call this function neither because
-the wxThread object doesn't exist any more as well.
-
+no longer alive, it is not possible to call this function because
+the wxThread object no longer exists.

 
 \membersection{wxThread::IsDetached}\label{wxthreadisdetached}
 
 
 \membersection{wxThread::IsDetached}\label{wxthreadisdetached}