Mercurial > cpython-lru_cache-weakref
diff Python/thread_nt.h @ 38794:f7d23bca599f legacy-trunk
Patch #1454481: Make thread stack size runtime tunable.
Heavily revised, comprising revisions:
46640 - original trunk revision (backed out in r46655)
46647 - markup fix (backed out in r46655)
46692:46918 merged from branch aimacintyre-sf1454481
branch tested on buildbots (Windows buildbots had problems
not related to these changes).
| author | Andrew MacIntyre <andymac@bullseye.apana.org.au> |
|---|---|
| date | Tue, 13 Jun 2006 15:04:24 +0000 |
| parents | 42808526511c |
| children | b68272449df4 |
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--- a/Python/thread_nt.h Tue Jun 13 12:04:43 2006 +0000 +++ b/Python/thread_nt.h Tue Jun 13 15:04:24 2006 +0000 @@ -196,7 +196,7 @@ if (obj.done == NULL) return -1; - rv = _beginthread(bootstrap, 0, &obj); /* use default stack size */ + rv = _beginthread(bootstrap, _pythread_stacksize, &obj); if (rv == (Py_uintptr_t)-1) { /* I've seen errno == EAGAIN here, which means "there are * too many threads". @@ -335,3 +335,30 @@ if (!(aLock && LeaveNonRecursiveMutex((PNRMUTEX) aLock))) dprintf(("%ld: Could not PyThread_release_lock(%p) error: %l\n", PyThread_get_thread_ident(), aLock, GetLastError())); } + +/* minimum/maximum thread stack sizes supported */ +#define THREAD_MIN_STACKSIZE 0x8000 /* 32kB */ +#define THREAD_MAX_STACKSIZE 0x10000000 /* 256MB */ + +/* set the thread stack size. + * Return 0 if size is valid, -1 otherwise. + */ +static int +_pythread_nt_set_stacksize(size_t size) +{ + /* set to default */ + if (size == 0) { + _pythread_stacksize = 0; + return 0; + } + + /* valid range? */ + if (size >= THREAD_MIN_STACKSIZE && size < THREAD_MAX_STACKSIZE) { + _pythread_stacksize = size; + return 0; + } + + return -1; +} + +#define THREAD_SET_STACKSIZE(x) _pythread_nt_set_stacksize(x)