view Python/thread_foobar.h @ 17104:a488a63cb867 legacy-trunk

Fix PyFrame_FastToLocals() and counterpart to deal with cells and frees. Note there doesn't seem to be any way to test LocalsToFast(), because the instructions that trigger it are illegal in nested scopes with free variables. Fix allocation strategy for cells that are also formal parameters. Instead of emitting LOAD_FAST / STORE_DEREF pairs for each parameter, have the argument handling code in eval_code2() do the right thing. A side-effect of this change is that cell variables that are also arguments are listed at the front of co_cellvars in the order they appear in the argument list.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Wed, 21 Mar 2001 16:43:47 +0000
parents 6f6f965c5e2d
children ebfd87e87884
line wrap: on
line source


/*
 * Initialization.
 */
static void
PyThread__init_thread(void)
{
}

/*
 * Thread support.
 */
int
PyThread_start_new_thread(void (*func)(void *), void *arg)
{
	int success = 0;	/* init not needed when SOLARIS_THREADS and */
				/* C_THREADS implemented properly */

	dprintf(("PyThread_start_new_thread called\n"));
	if (!initialized)
		PyThread_init_thread();
	return success < 0 ? 0 : 1;
}

long
PyThread_get_thread_ident(void)
{
	if (!initialized)
		PyThread_init_thread();
}

static
void do_PyThread_exit_thread(int no_cleanup)
{
	dprintf(("PyThread_exit_thread called\n"));
	if (!initialized)
		if (no_cleanup)
			_exit(0);
		else
			exit(0);
}

void
PyThread_exit_thread(void)
{
	do_PyThread_exit_thread(0);
}

void
PyThread__exit_thread(void)
{
	do_PyThread_exit_thread(1);
}

#ifndef NO_EXIT_PROG
static
void do_PyThread_exit_prog(int status, int no_cleanup)
{
	dprintf(("PyThread_exit_prog(%d) called\n", status));
	if (!initialized)
		if (no_cleanup)
			_exit(status);
		else
			exit(status);
}

void
PyThread_exit_prog(int status)
{
	do_PyThread_exit_prog(status, 0);
}

void
PyThread__exit_prog(int status)
{
	do_PyThread_exit_prog(status, 1);
}
#endif /* NO_EXIT_PROG */

/*
 * Lock support.
 */
PyThread_type_lock
PyThread_allocate_lock(void)
{

	dprintf(("PyThread_allocate_lock called\n"));
	if (!initialized)
		PyThread_init_thread();

	dprintf(("PyThread_allocate_lock() -> %p\n", lock));
	return (PyThread_type_lock) lock;
}

void
PyThread_free_lock(PyThread_type_lock lock)
{
	dprintf(("PyThread_free_lock(%p) called\n", lock));
}

int
PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
{
	int success;

	dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
	dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
	return success;
}

void
PyThread_release_lock(PyThread_type_lock lock)
{
	dprintf(("PyThread_release_lock(%p) called\n", lock));
}

/*
 * Semaphore support.
 */
PyThread_type_sema
PyThread_allocate_sema(int value)
{
	dprintf(("PyThread_allocate_sema called\n"));
	if (!initialized)
		PyThread_init_thread();

	dprintf(("PyThread_allocate_sema() -> %p\n",  sema));
	return (PyThread_type_sema) sema;
}

void
PyThread_free_sema(PyThread_type_sema sema)
{
	dprintf(("PyThread_free_sema(%p) called\n",  sema));
}

int
PyThread_down_sema(PyThread_type_sema sema, int waitflag)
{
	dprintf(("PyThread_down_sema(%p, %d) called\n",  sema, waitflag));
	dprintf(("PyThread_down_sema(%p) return\n",  sema));
	return -1;
}

void
PyThread_up_sema(PyThread_type_sema sema)
{
	dprintf(("PyThread_up_sema(%p)\n",  sema));
}