1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
/* 
TEST_HEADER
 id = $HopeName: MMQA_test_function!132.c(trunk.6) $
 summary = low-memory reservoir tests with commit limit, part I
 language = c
 harness = 2.1
 link = testlib.o rankfmt.o
OUTPUT_SPEC
 lim0 = 0
 avail0 = 0
 lim1 > 5000000
 lim1 < 6000000
 deficit1 = 0
 lim2 > 1045
 lim2 < 32768
 deficit2 = 0
 deficit3 > 8000000
 spill3 <= 0
 spill4 <= 0
 grow4 > 500000
 allocfail < 20
 failres = COMMIT_LIMIT
 spill5 <= 0
 grow5 = 0
 avail5 > 1500000
 allocfail2 > 10000
 failres2 = MEMORY
 shrink6 > 1000000
 spill6 <= 0
 completed = yes
END_HEADER
*/

#include "testlib.h"
#include "mpscamc.h"
#include "mpsavm.h"
#include "rankfmt.h"


#define ARENA_SIZE ((size_t) 1024*1024*30)

#define genCOUNT (3)

static mps_gen_param_s testChain[genCOUNT] = {
  { 6000, 0.90 }, { 8000, 0.65 }, { 16000, 0.50 } };


void *stackpointer;


static void test(void)
{
 mps_arena_t arena;
 mps_pool_t poolamc;
 mps_thr_t thread;
 mps_root_t root;

 mps_fmt_t format;
 mps_chain_t chain;
 mps_ap_t apamc;

 mycell *p, *q;
 int i;
 mps_res_t res;
 size_t lim0, avail0, lim1, avail1, commit1, lim2, avail2, commit2;
 size_t lim3, avail3, commit3, lim4, avail4, commit4;
 size_t lim5, avail5, commit5, lim6, avail6, commit6;

 cdie(mps_arena_create(&arena, mps_arena_class_vm(), ARENA_SIZE),
      "create arena");

 cdie(mps_thread_reg(&thread, arena), "register thread");
 cdie(mps_root_create_reg(&root, arena, MPS_RANK_AMBIG, 0, thread,
                          mps_stack_scan_ambig, stackpointer, 0),
      "create stack root");

 cdie(mps_fmt_create_A(&format, arena, &fmtA), "create format");
 cdie(mps_chain_create(&chain, arena, genCOUNT, testChain), "chain_create");

 die(mmqa_pool_create_chain(&poolamc, arena, mps_class_amc(), format, chain),
     "create pool");

 cdie(
  mps_ap_create(&apamc, poolamc, MPS_RANK_EXACT),
  "create ap");

 report("lim0", "%d", lim0 = mps_reservoir_limit(arena));
 report("avail0",  "%d", avail0 = mps_reservoir_available(arena));
 mps_reservoir_limit_set(arena, (size_t) 0);

 mps_reservoir_limit_set(arena, (size_t) (5ul*1024*1024));
 report("lim1", "%d", lim1 = mps_reservoir_limit(arena));
 report("avail1",  "%d", avail1 = mps_reservoir_available(arena));
 report("commit1", "%d", commit1 = arena_committed_and_used(arena));
 report("deficit1", "%d", lim1-avail1);

 mps_reservoir_limit_set(arena, (size_t) (1045));
 report("lim2", "%d", lim2 = mps_reservoir_limit(arena));
 report("avail2",  "%d", avail2 = mps_reservoir_available(arena));
 report("commit2", "%d", commit2 = arena_committed_and_used(arena));
 report("deficit2", "%d", lim2-avail2);

 /* set commit limit to whatever is currently committed plus 1 MB */

 mps_arena_commit_limit_set(arena, arena_committed_and_used(arena)+1024*1024);
 mps_reservoir_limit_set(arena, (size_t) (10ul*1024*1024));
 report("lim3", "%d", lim3 = mps_reservoir_limit(arena));
 report("avail3",  "%d", avail3 = mps_reservoir_available(arena));
 report("commit3", "%d", commit3 = arena_committed_and_used(arena));
 report("deficit3", "%d", lim3-avail3);
 report("spill3", "%d", commit3-mps_arena_commit_limit(arena));

 /* now raise it by 1/2 MB -- reservoir should grow */

 mps_arena_commit_limit_set(arena, arena_committed_and_used(arena)+512*1024);
 report("lim4", "%d", lim4 = mps_reservoir_limit(arena));
 report("avail4",  "%d", avail4 = mps_reservoir_available(arena));
 report("commit4", "%d", commit4 = arena_committed_and_used(arena));
 report("grow4", "%d", avail4-avail3);
 report("spill4", "%d", commit4-mps_arena_commit_limit(arena));

 /* try some allocation -- more than a small amount should fail */

 i = -1;
 p = NULL;
 res = MPS_RES_OK;
 while (res == MPS_RES_OK) {
  res = allocrone(&q, apamc, 10, MPS_RANK_EXACT);
  if (res == MPS_RES_OK) {
   setref(q, 0, p);
   p = q;
  }
  i++;
 }
 report("allocfail", "%d", i);
 report_res("failres", res);
 
 /* available shouldn't have changed since before allocation */

 report("lim5", "%d", lim5 = mps_reservoir_limit(arena));
 report("avail5",  "%d", avail5 = mps_reservoir_available(arena));
 report("commit5", "%d", commit5 = arena_committed_and_used(arena));
 report("grow5", "%d", avail5-avail4);
 report("spill5", "%d", commit5-mps_arena_commit_limit(arena));

 /* try some allocation from reservoir -- not much should fail */

 i = -1;
 res = MPS_RES_OK;
 while (res == MPS_RES_OK) {
  res = reservoir_allocrone(&q, apamc, 10, MPS_RANK_EXACT);
  if (res == MPS_RES_OK) {
   setref(q, 0, p);
   p = q;
  }
  i++;
 }
 report("allocfail2", "%d", i);
 report_res("failres2", res);
 
 /* available should have changed now */

 report("lim6", "%d", lim6 = mps_reservoir_limit(arena));
 report("avail6",  "%d", avail6 = mps_reservoir_available(arena));
 report("commit6", "%d", commit6 = arena_committed_and_used(arena));
 report("spill6", "%d", commit6-mps_arena_commit_limit(arena));
 report("shrink6", "%d", avail5-avail6);
 
 mps_root_destroy(root);
 mps_ap_destroy(apamc);
 mps_pool_destroy(poolamc);
 mps_fmt_destroy(format);
 mps_thread_dereg(thread);
 mps_arena_destroy(arena);
 comment("Destroyed arena.");
}


int main(void)
{
 void *m;
 stackpointer=&m; /* hack to get stack pointer */

 easy_tramp(test);
 report("completed", "yes");
 return 0;
}