diff options
Diffstat (limited to 'Python/thread_os2.h')
| -rw-r--r-- | Python/thread_os2.h | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/Python/thread_os2.h b/Python/thread_os2.h index a18ce6f..91959a0 100644 --- a/Python/thread_os2.h +++ b/Python/thread_os2.h @@ -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) |