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Refactor/fix background_thread/percpu_arena bootstrapping.

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Refactor bootstrapping such that dlsym() is called during the
bootstrapping phase that can tolerate reentrant allocation.
This commit is contained in:
Jason Evans
2017-05-31 16:45:14 -07:00
parent 596b479d83
commit b511232fcd
12 changed files with 161 additions and 124 deletions
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12
test/unit/mallctl.c
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@@ -327,18 +327,18 @@ TEST_END
TEST_BEGIN(test_thread_arena) {
unsigned old_arena_ind, new_arena_ind, narenas;
const char *opt_percpu_arena;
size_t sz = sizeof(opt_percpu_arena);
assert_d_eq(mallctl("opt.percpu_arena", &opt_percpu_arena, &sz, NULL,
0), 0, "Unexpected mallctl() failure");
const char *opa;
size_t sz = sizeof(opa);
assert_d_eq(mallctl("opt.percpu_arena", &opa, &sz, NULL, 0), 0,
"Unexpected mallctl() failure");
sz = sizeof(unsigned);
assert_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
0, "Unexpected mallctl() failure");
assert_u_eq(narenas, opt_narenas, "Number of arenas incorrect");
if (strcmp(opt_percpu_arena, "disabled") == 0) {
if (strcmp(opa, "disabled") == 0) {
new_arena_ind = narenas - 1;
assert_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
(void *)&new_arena_ind, sizeof(unsigned)), 0,
@@ -350,7 +350,7 @@ TEST_BEGIN(test_thread_arena) {
} else {
assert_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
NULL, 0), 0, "Unexpected mallctl() failure");
new_arena_ind = percpu_arena_ind_limit() - 1;
new_arena_ind = percpu_arena_ind_limit(opt_percpu_arena) - 1;
if (old_arena_ind != new_arena_ind) {
assert_d_eq(mallctl("thread.arena",
(void *)&old_arena_ind, &sz, (void *)&new_arena_ind,