* Makefile: cosmetics
* socketmodule.c: get rid of makepair(); fix makesocketaddr to fix
broken recvfrom()
* socketmodule: get rid of getStrarg()
* ceval.h: move eval_code() to new file eval.h, so compile.h is no
longer needed.
* ceval.c: move thread comments to ceval.h; always make save/restore
thread functions available (for dynloaded modules)
* cdmodule.c, listobject.c: don't include compile.h
* flmodule.c: include ceval.h
* import.c: include eval.h instead of ceval.h
* cgen.py: add forground(); noport(); winopen(""); to initgl().
* bltinmodule.c, socketmodule.c, fileobject.c, posixmodule.c,
selectmodule.c:
adapt to threads (add BGN/END SAVE macros)
* stdwinmodule.c: adapt to threads and use a special stdwin lock.
* pythonmain.c: don't include getpythonpath().
* pythonrun.c: use BGN/END SAVE instead of direct calls; also more
BGN/END SAVE calls etc.
* thread.c: bigger stack size for sun; change exit() to _exit()
* threadmodule.c: use BGN/END SAVE macros where possible
* timemodule.c: adapt better to threads; use BGN/END SAVE; add
longsleep internal function if BSD_TIME; cosmetics
diff --git a/Include/ceval.h b/Include/ceval.h
index 2ddb7d0..d9708a2 100644
--- a/Include/ceval.h
+++ b/Include/ceval.h
@@ -22,10 +22,7 @@
******************************************************************/
-/* Interface to execute compiled code */
-/* This header depends on "compile.h" */
-
-object *eval_code PROTO((codeobject *, object *, object *, object *));
+/* Interface to random parts in ceval.c */
object *call_object PROTO((object *, object *));
@@ -34,3 +31,70 @@
void printtraceback PROTO((FILE *));
void flushline PROTO((void));
+
+
+/* Interface for threads.
+
+ A module that plans to do a blocking system call (or something else
+ that lasts a long time and doesn't touch Python data) can allow other
+ threads to run as follows:
+
+ ...preparations here...
+ BGN_SAVE
+ ...blocking system call here...
+ END_SAVE
+ ...interpretr result here...
+
+ The BGN_SAVE/END_SAVE pair expands to a {}-surrounded block.
+ To leave the block in the middle (e.g., with return), you must insert
+ a line containing RET_SAVE before the return, e.g.
+
+ if (...premature_exit...) {
+ RET_SAVE
+ err_errno(IOError);
+ return NULL;
+ }
+
+ An alternative is:
+
+ RET_SAVE
+ if (...premature_exit...) {
+ err_errno(IOError);
+ return NULL;
+ }
+ RES_SAVE
+
+ For convenience, that the value of 'errno' is restored across
+ END_SAVE and RET_SAVE.
+
+ WARNING: NEVER NEST CALLS TO BGN_SAVE AND END_SAVE!!!
+
+ The function init_save_thread() should be called only from
+ initthread() in "threadmodule.c".
+
+ Note that not yet all candidates have been converted to use this
+ mechanism!
+*/
+
+extern void init_save_thread PROTO((void));
+extern void *save_thread PROTO((void));
+extern void restore_thread PROTO((void *));
+
+#ifdef USE_THREAD
+
+#define BGN_SAVE { \
+ void *_save; \
+ _save = save_thread();
+#define RET_SAVE restore_thread(_save);
+#define RES_SAVE _save = save_thread();
+#define END_SAVE restore_thread(_save); \
+ }
+
+#else /* !USE_THREAD */
+
+#define BGN_SAVE {
+#define RET_SAVE
+#define RES_SAVE
+#define END_SAVE }
+
+#endif /* !USE_THREAD */