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mps/qa/function/29.c

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+/* TEST_HEADER
+ summary = big allocation with an LO pool
+ language = c
+ link = lofmt.o testlib.o
+END_HEADER
+*/
+
+#include "testlib.h"
+#include "mpsclo.h"
+#include "lofmt.h"
+#include <string.h>
+
+void *stackpointer;
+mps_ap_t ap;
+
+#define MAXLEN 1000000;
+
+static locell *string_ch(char* x) {
+ size_t len;
+ locell *y;
+
+ len = strlen(x);
+
+ y = alloclo(ap, len+1);
+ memcpy(y->data.data, x, len+1);
+ y->data.len = len;
+
+ return y;
+}
+
+static char *ch_string(locell *x) {
+ return x->data.data;
+}
+
+/*
+static size_t string_len(locell *x) {
+ return x->data.len;
+}
+
+static locell *mid(locell *x, size_t i, size_t j) {
+ locell *y;
+ size_t l;
+
+ l = x->data.len;
+ if (i>l) i = l;
+ if (j>l) j = l;
+ if (j<i) j = i;
+
+ y = alloclo(ap, j-i+1);
+ memcpy(y->data.data, &(x->data.data[i]), j-i);
+ y->data.data[j-i] = '\0';
+ y->data.len = j-i;
+
+ return y;
+}
+
+static locell *left(locell *x, size_t i) {
+ return mid(x, 0, i);
+}
+
+static locell *right(locell *x, size_t i) {
+ size_t l;
+
+ l = x->data.len;
+ return mid(x, l-i, l);
+}
+*/
+
+static locell *conc(locell *x, locell *y) {
+ size_t l, m;
+ locell *z;
+
+ l = x->data.len;
+ m = y->data.len;
+
+ z = alloclo(ap, l+m+1);
+ memcpy(z->data.data, x->data.data, l);
+ memcpy(&(z->data.data[l]), y->data.data, m);
+ z->data.data[l+m] = '\0';
+ z->data.len = l+m;
+
+ return z;
+}
+
+static void test(void) {
+ mps_space_t space;
+ mps_pool_t pool;
+ mps_thr_t thread;
+ mps_root_t root;
+
+ mps_fmt_t format;
+
+ locell *a,*b,*c,*z;
+ int i;
+
+ alloclocomments = 0;
+ allowlocopies = 0;
+
+ cdie(mps_space_create(&space), "create space");
+
+ cdie(mps_thread_reg(&thread, space), "register thread");
+
+ cdie(
+  mps_root_create_reg(&root, space, MPS_RANK_AMBIG, 0, thread,
+   mps_stack_scan_ambig, stackpointer, 0),
+  "create root");
+
+ cdie(
+  mps_fmt_create_A(&format, space, &fmtLO),
+  "create format");
+
+ cdie(
+  mps_pool_create(&pool, space, mps_class_lo(), format),
+  "create pool");
+
+ cdie(
+  mps_ap_create(&ap, pool, MPS_RANK_EXACT),
+  "create ap");
+
+ a = string_ch("Hello there");
+ b = string_ch("Wibble wobble foo");
+ c = string_ch("Ba ");
+
+ for (i=0; i<10000; i++) {
+  a = conc(string_ch("B"), a);
+  c = conc(string_ch("Hello there"), string_ch(" folks!"));
+  z = alloclo(ap, 0x4000);
+ }
+
+ printf("%s\n", ch_string(a));
+ printf("%s\n", ch_string(c));
+
+ mps_ap_destroy(ap);
+ comment("Destroyed ap.");
+
+ mps_pool_destroy(pool);
+ comment("Destroyed pool.");
+
+ mps_fmt_destroy(format);
+ comment("Destroyed format.");
+
+ mps_root_destroy(root);
+ comment("Destroyed root.");
+
+ mps_thread_dereg(thread);
+ comment("Deregistered thread.");
+
+ mps_space_destroy(space);
+ comment("Destroyed space.");
+
+}
+
+int main(void)
+{
+ void *m;
+ stackpointer=&m; /* hack to get stack pointer */
+
+ easy_tramp(test);
+ pass();
+ return 0;
+}