4 files changed, 191 insertions, 0 deletions

diff --git a/devel/st/files/patch-aa b/devel/st/files/patch-aa
new file mode 100644
index 000000000000..61296d7e4ccf
--- /dev/null
+++ b/devel/st/files/patch-aa
@@ -0,0 +1,49 @@
+diff -ur common.h common.h
+--- common.h	Fri Feb 22 12:55:46 2002
++++ common.h	Fri Jan 21 15:14:51 2005
+@@ -190,6 +190,7 @@
+   int on_ioq;                 /* Is it on ioq? */
+ } _st_pollq_t;
+ 
++typedef void (*_st_switch_cb_t)(void);
+ 
+ typedef struct _st_vp {
+   _st_thread_t *idle_thread;  /* Idle thread for this vp */
+@@ -204,6 +205,8 @@
+ #endif
+   st_utime_t sleep_max;
+   int pagesize;
++  _st_switch_cb_t switch_out_cb; /* called when a thread is switched out */
++  _st_switch_cb_t switch_in_cb;  /* called when a thread is switched in */
+ 
+ #ifndef USE_POLL
+   int maxfd;
+@@ -362,12 +365,22 @@
+  * Switch away from the current thread context by saving its state and
+  * calling the thread scheduler
+  */
+-#define _ST_SWITCH_CONTEXT(_thread)       \
+-    ST_BEGIN_MACRO                        \
+-    if (!MD_SETJMP((_thread)->context)) { \
+-      _st_vp_schedule();                  \
+-    }                                     \
+-    ST_DEBUG_ITERATE_THREADS();           \
++#define _ST_SWITCH_CONTEXT(_thread)                     \
++    ST_BEGIN_MACRO                                      \
++    if (_st_this_vp.switch_out_cb != NULL &&            \
++	_thread != _st_this_vp.idle_thread &&		\
++	_thread->state != _ST_ST_ZOMBIE) {              \
++      _st_this_vp.switch_out_cb();                      \
++    }                                                   \
++    if (!MD_SETJMP((_thread)->context)) {               \
++      _st_vp_schedule();                                \
++    }                                                   \
++    ST_DEBUG_ITERATE_THREADS();                         \
++    if (_st_this_vp.switch_in_cb != NULL &&             \
++	_thread != _st_this_vp.idle_thread &&		\
++	_thread->state != _ST_ST_ZOMBIE) {              \
++      _st_this_vp.switch_in_cb();                       \
++    }                                                   \
+     ST_END_MACRO
+ 
+ /*
diff --git a/devel/st/files/patch-ab b/devel/st/files/patch-ab
new file mode 100644
index 000000000000..346051cd407f
--- /dev/null
+++ b/devel/st/files/patch-ab
@@ -0,0 +1,101 @@
+diff -ur docs/reference.html docs/reference.html
+--- docs/reference.html	Fri Oct 25 19:54:20 2002
++++ docs/reference.html	Fri Jan 21 15:14:24 2005
+@@ -13,6 +13,7 @@
+ <DL><DD><A HREF=#mutex_t>st_mutex_t</A></DD></DL>
+ <DL><DD><A HREF=#utime_t>st_utime_t</A></DD></DL>
+ <DL><DD><A HREF=#netfd_t>st_netfd_t</A></DD></DL>
++<DL><DD><A HREF=#switch_cb_t>st_switch_cb_t</A></DD></DL>
+ <P>
+ <DD><A HREF=#errors><B>Error Handling</B></A></DD>
+ <P>
+@@ -20,6 +21,8 @@
+ <P>
+ <DL><DD><A HREF=#st_init>st_init()</A></DD></DL>
+ <DL><DD><A HREF=#st_getfdlimit>st_getfdlimit()</A></DD></DL>
++<DL><DD><A HREF=#st_set_switch_in_cb>st_set_switch_in_cb()</A></DD></DL>
++<DL><DD><A HREF=#st_set_switch_out_cb>st_set_switch_out_cb()</A></DD></DL>
+ <P>
+ <DD><A HREF=#threads><B>Thread Control and Identification</B></A></DD>
+ <P>
+@@ -244,6 +247,29 @@
+ <HR>
+ <P>
+ 
++<A NAME="switch_cb_t">
++<H4>st_switch_cb_t</H4>
++</A>
++Context switch callback function type.
++<P>
++<H5>Syntax</H5>
++
++<PRE>
++#include &lt;st.h&gt;
++
++typedef void (*st_switch_cb_t)(void);
++</PRE>
++<P>
++<H5>Description</H5>
++
++This datatype is a convenience type for describing a pointer
++to a function that will be called when a thread is set to stop
++or set to run.
++
++<P>
++<HR>
++<P>
++
+ <A NAME="errors">
+ <H2>Error Handling</H2>
+ </A>
+@@ -267,6 +293,8 @@
+ <DL>
+ <DD><A HREF=#st_init>st_init()</A></DD>
+ <DD><A HREF=#st_getfdlimit>st_getfdlimit()</A></DD>
++<DD><A HREF=#st_set_switch_in_cb>st_set_switch_in_cb()</A></DD>
++<DD><A HREF=#st_set_switch_out_cb>st_set_switch_out_cb()</A></DD>
+ </DL>
+ <P>
+ <HR>
+@@ -343,6 +371,41 @@
+ <H5>Description</H5>
+ This function returns the limit on the number of open file descriptors which
+ is set by the <A HREF=#st_init>st_init()</A> function.
++<P>
++<HR>
++<P>
++
++<A NAME="st_set_switch_in_cb">
++<H4>st_set_switch_in_cb()</H4>
++</A>
++<A NAME="st_set_switch_out_cb">
++<H4>st_set_switch_out_cb()</H4>
++</A>
++Set the callback function for thread switches.
++<P>
++<H5>Syntax</H5>
++
++<PRE>
++#include &lt;st.h&gt;
++
++st_switch_cb_t st_set_switch_in_cb(st_switch_cb_t cb);
++st_switch_cb_t st_set_switch_out_cb(st_switch_cb_t cb);
++</PRE>
++<P>
++<H5>Parameters</H5>
++<TT>st_set_switch_in_cb()</TT> and <TT>st_set_switch_out_cb()</TT> have the
++following parameter:<P>
++<TT>cb</TT><P>
++A function to be called when a thread is resumed and stopped respectively.<P>
++<H5>Returns</H5>
++The previous callback function pointer.
++<P>
++<H5>Description</H5>
++These functions set the callback for when a thread is resumed and stopped
++respectively.  After being called any thread switch will call the callback.
++It is suggested that thread specific data is used to differentiate between
++different threads.<P>
++These functions can be called at any time.
+ <P>
+ <HR>
+ <P>
diff --git a/devel/st/files/patch-ac b/devel/st/files/patch-ac
new file mode 100644
index 000000000000..e04789d67964
--- /dev/null
+++ b/devel/st/files/patch-ac
@@ -0,0 +1,16 @@
+diff -ur public.h public.h
+--- public.h	Thu Mar 28 21:09:08 2002
++++ public.h	Fri Jan 21 15:14:24 2005
+@@ -85,9 +85,12 @@
+ typedef struct _st_cond *   st_cond_t;
+ typedef struct _st_mutex *  st_mutex_t;
+ typedef struct _st_netfd *  st_netfd_t;
++typedef void (*st_switch_cb_t)(void);
+ 
+ extern int st_init(void);
+ extern int st_getfdlimit(void);
++extern st_switch_cb_t st_set_switch_in_cb(st_switch_cb_t cb);
++extern st_switch_cb_t st_set_switch_out_cb(st_switch_cb_t cb);
+ 
+ extern st_thread_t st_thread_self(void);
+ extern void st_thread_exit(void *retval);
diff --git a/devel/st/files/patch-ad b/devel/st/files/patch-ad
new file mode 100644
index 000000000000..401dfcd37c70
--- /dev/null
+++ b/devel/st/files/patch-ad
@@ -0,0 +1,25 @@
+diff -ur sched.c sched.c
+--- sched.c	Wed Jan 30 19:46:11 2002
++++ sched.c	Fri Jan 21 15:14:24 2005
+@@ -232,6 +232,21 @@
+   return 0;
+ }
+ 
++st_switch_cb_t st_set_switch_in_cb(st_switch_cb_t cb)
++{
++  st_switch_cb_t ocb = _st_this_vp.switch_in_cb;
++
++  _st_this_vp.switch_in_cb = cb;
++  return (ocb);
++}
++
++st_switch_cb_t st_set_switch_out_cb(st_switch_cb_t cb)
++{
++  st_switch_cb_t ocb = _st_this_vp.switch_out_cb;
++
++  _st_this_vp.switch_out_cb = cb;
++  return (ocb);
++}
+ 
+ /*
+  * Start function for the idle thread