From 3a4a7657ff96840d20470ca88554be3eef98e6ef Mon Sep 17 00:00:00 2001
From: Richard Tucker <rit@harlequin.com>
Date: Thu, 22 Oct 1998 11:09:21 +0100
Subject: [PATCH] New unit

new test

Copied from Perforce
 Change: 20267
 ServerID: perforce.ravenbrook.com
---
 mps/qa/function/151.c | 83 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 mps/qa/function/151.c

diff --git a/mps/qa/function/151.c b/mps/qa/function/151.c
new file mode 100644
index 00000000000..db483a72385
--- /dev/null
+++ b/mps/qa/function/151.c
@@ -0,0 +1,83 @@
+/* $HopeName: MMQA_test_function!147.c(trunk.1) $
+TEST_HEADER
+ summary = SNC pop-to-NULL test (request.dylan.170602)
+ language = c
+ link = testlib.o rankfmt.o
+END_HEADER
+*/
+
+#include "testlib.h"
+#include "mpscsnc.h"
+#include "mpsavm.h"
+#include "rankfmt.h"
+
+#define THIRTY_MEG (30uL*1024ul*1024ul)
+#define OBJSIZE (1024*1024*1)
+#define ITERATIONS (100)
+
+static void test(void)
+{
+ int i = 0;
+ mps_ap_t sap;
+ mps_arena_t arena;
+ mps_fmt_t format;
+ mps_pool_t spool;
+ mps_thr_t thread;
+ mps_frame_t frame;
+ mycell *p;
+
+/* create an arena that can't grow beyond 30 M */
+
+ cdie(mps_arena_create(&arena, mps_arena_class_vm(), (size_t)THIRTY_MEG),
+  "create arena");
+ cdie(mps_arena_commit_limit_set(arena, (size_t)THIRTY_MEG),
+  "commit limit set");
+
+ cdie(mps_thread_reg(&thread, arena), "register thread");
+
+ cdie(
+  mps_fmt_create_A(&format, arena, &fmtA),
+  "create format");
+
+ cdie(
+  mps_pool_create(&spool, arena, mps_class_snc(), format),
+  "create SNC pool");
+
+ cdie(
+  mps_ap_create(&sap, spool, MPS_RANK_EXACT),
+  "create ap");
+
+/* repeatedly push, alloc 1MB object, and pop to first stack frame.
+   This shouldn't use much more than 1MB of memory.
+*/
+
+ for (i=0; i < ITERATIONS; i++) {
+  die(mps_ap_frame_push(&frame, sap), "push");
+  p = allocdumb(sap, OBJSIZE, MPS_RANK_EXACT);
+  die(mps_ap_frame_pop(sap, frame), "pop");
+  comment("%i of %i", i, ITERATIONS);
+ }
+
+ mps_ap_destroy(sap);
+ comment("Destroyed ap.");
+
+ mps_pool_destroy(spool);
+ comment("Destroyed pool.");
+
+ mps_fmt_destroy(format);
+ comment("Destroyed format.");
+
+ mps_thread_dereg(thread);
+ comment("Deregistered thread.");
+
+ mps_arena_destroy(arena);
+ comment("Destroyed arena.");
+
+}
+
+int main(void)
+{
+ easy_tramp(test);
+ pass();
+ return 0;
+}