From 458120dd40db6b4df55a4e96b650e16798ef06a0 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@localhost>
Date: Tue, 3 May 2011 11:25:13 +0000
Subject: add hg and python

---
 sys/src/cmd/python/Python/thread_plan9.h | 135 +++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 sys/src/cmd/python/Python/thread_plan9.h

(limited to 'sys/src/cmd/python/Python/thread_plan9.h')

diff --git a/sys/src/cmd/python/Python/thread_plan9.h b/sys/src/cmd/python/Python/thread_plan9.h
new file mode 100644
index 000000000..d0504806e
--- /dev/null
+++ b/sys/src/cmd/python/Python/thread_plan9.h
@@ -0,0 +1,135 @@
+#define _PLAN9_SOURCE
+#include <u.h>
+#include <lib9.h>
+#include <qlock.h>
+
+/*
+ * Initialization.
+ */
+static void
+PyThread__init_thread(void)
+{
+}
+
+/*
+ * Thread support.
+ */
+long
+PyThread_start_new_thread(void (*func)(void *), void *arg)
+{
+	dprintf(("PyThread_start_new_thread called\n"));
+	if (!initialized)
+		PyThread_init_thread();
+	switch(rfork(RFPROC|RFMEM)){
+	case -1:
+		printf("rfork: %r\n");
+		return -1;
+	case 0:
+		_threadarg->fn = func;
+		_threadarg->arg = arg;
+		longjmp(_threadarg->jb, 1);
+	default:
+		return 0;
+	}
+}
+
+long
+PyThread_get_thread_ident(void)
+{
+	if (!initialized)
+		PyThread_init_thread();
+	return getpid();
+}
+
+void
+PyThread_exit_thread(void)
+{
+	if(initialized)
+		_exit(0);
+	exit(0);
+}
+
+void
+PyThread__exit_thread(void)
+{
+	_exit(0);
+}
+
+#ifndef NO_EXIT_PROG
+static
+void do_PyThread_exit_prog(int status, int no_cleanup)
+{
+	/*
+	 * BUG BUG BUG 
+	 */
+
+	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)
+{
+	QLock *lk;
+
+	dprintf(("PyThread_allocate_lock called\n"));
+	if (!initialized)
+		PyThread_init_thread();
+
+	lk = malloc(sizeof(*lk));
+	memset(lk, 0, sizeof(*lk));
+	dprintf(("PyThread_allocate_lock() -> %p\n", lk));
+	return lk;
+}
+
+void
+PyThread_free_lock(PyThread_type_lock lock)
+{
+	dprintf(("PyThread_free_lock(%p) called\n", lock));
+	free(lock);
+}
+
+int
+PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
+{
+	int success;
+
+	dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
+	if(lock == nil)
+		success = 0;
+	else if(waitflag){
+		qlock(lock);
+		success = 1;
+	}else
+		success = canqlock(lock);
+	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));
+	qunlock(lock);
+}
+
-- 
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