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Patch #1454481: Make thread stack size runtime tunable.

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This commit is contained in:
Andrew MacIntyre 2006-06-04 12:31:09 +00:00
parent 7a071939d9
commit 6539d2d3c7
14 changed files with 332 additions and 5 deletions
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42
Python/thread_os2.h
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@ -14,10 +14,13 @@
long PyThread_get_thread_ident(void);
#endif
/* default thread stack size of 64kB */
#if !defined(THREAD_STACK_SIZE)
#define THREAD_STACK_SIZE 0x10000
#endif
#define OS2_STACKSIZE(x) (x ? x : THREAD_STACK_SIZE)
/*
* Initialization of the C package, should not be needed.
*/
@ -35,7 +38,10 @@ PyThread_start_new_thread(void (*func)(void *), void *arg)
int aThread;
int success = 0;
aThread = _beginthread(func, NULL, THREAD_STACK_SIZE, arg);
aThread = _beginthread(func,
NULL,
OS2_STACKSIZE(_pythread_stacksize),
arg);
if (aThread == -1) {
success = -1;
@ -274,3 +280,37 @@ void PyThread_release_lock(PyThread_type_lock aLock)
DosExitCritSec();
#endif
}
/* minimum/maximum thread stack sizes supported */
#define THREAD_MIN_STACKSIZE 0x8000 /* 32kB */
#define THREAD_MAX_STACKSIZE 0x2000000 /* 32MB */
/* set the thread stack size.
* Return 1 if an exception is pending, 0 otherwise.
*/
static int
_pythread_os2_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;
}
else {
char warning[128];
snprintf(warning,
128,
"thread stack size of %#x bytes not supported on OS/2",
size);
return PyErr_Warn(PyExc_RuntimeWarning, warning);
}
}
#undef THREAD_SET_STACKSIZE
#define THREAD_SET_STACKSIZE(x) _pythread_os2_set_stacksize(x)