Mercurial > cpython-lru_cache-weakref

diff Python/ceval.c @ 926:c156d4960c2b legacy-trunk

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* 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
author Guido van Rossum <guido@python.org>
date Wed, 05 Aug 1992 19:58:53 +0000
parents 72aceed365d4
children 222f04f55083
line wrap: on
line diff
--- a/Python/ceval.c	Wed Aug 05 19:00:45 1992 +0000
+++ b/Python/ceval.c	Wed Aug 05 19:58:53 1992 +0000
@@ -30,6 +30,7 @@
 #include "sysmodule.h"
 #include "compile.h"
 #include "frameobject.h"
+#include "eval.h"
 #include "ceval.h"
 #include "opcode.h"
 #include "bltinmodule.h"
@@ -83,47 +84,27 @@
 
 static frameobject *current_frame;
 
-
-/* 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:
-
-	void *x;
+#ifdef USE_THREAD
 
-	...preparations here...
-	x = save_thread();
-	...blocking system call here...
-	restore_thread(x);
-	...interpretr result here...
-
-   For convenience, that the value of 'errno' is restored across the
-   the call to restore_thread().
-
-   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!
-*/
-
-#ifdef USE_THREAD
 #include <errno.h>
 #include "thread.h"
+
 static type_lock interpreter_lock;
 
 void
 init_save_thread()
 {
-#ifdef USE_THREAD
 	if (interpreter_lock)
 		fatal("2nd call to init_save_thread");
 	interpreter_lock = allocate_lock();
 	acquire_lock(interpreter_lock, 1);
+}
+
 #endif
-}
-#endif
+
+/* Functions save_thread and restore_thread are always defined so
+   dynamically loaded modules needn't be compiled separately for use
+   with and without threads: */
 
 void *
 save_thread()