mirror of
https://github.com/python/cpython
synced 2024-09-20 06:51:48 +00:00
ff4949eeee
* 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
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/***********************************************************
|
|
Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
|
|
Netherlands.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
provided that the above copyright notice appear in all copies and that
|
|
both that copyright notice and this permission notice appear in
|
|
supporting documentation, and that the names of Stichting Mathematisch
|
|
Centrum or CWI not be used in advertising or publicity pertaining to
|
|
distribution of the software without specific, written prior permission.
|
|
|
|
STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
|
|
THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
|
|
FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
|
|
OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
******************************************************************/
|
|
|
|
/* Interface to random parts in ceval.c */
|
|
|
|
object *call_object PROTO((object *, object *));
|
|
|
|
object *getglobals PROTO((void));
|
|
object *getlocals PROTO((void));
|
|
|
|
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 */
|