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Make dss non-optional, and fix an "arena.<i>.dss" mallctl bug.

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Make dss non-optional on all platforms which support sbrk(2).

Fix the "arena.<i>.dss" mallctl to return an error if "primary" or
"secondary" precedence is specified, but sbrk(2) is not supported.
This commit is contained in:
Jason Evans
2014-04-15 12:09:48 -07:00
parent 644d414bc9
commit 4d434adb14
13 changed files with 72 additions and 73 deletions
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17
test/integration/MALLOCX_ARENA.c
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@@ -2,6 +2,14 @@
#define NTHREADS 10
static bool have_dss =
#ifdef JEMALLOC_DSS
true
#else
false
#endif
;
void *
thd_start(void *arg)
{
@@ -18,13 +26,16 @@ thd_start(void *arg)
size_t mib[3];
size_t miblen = sizeof(mib) / sizeof(size_t);
const char *dss_precs[] = {"disabled", "primary", "secondary"};
const char *dss = dss_precs[thread_ind %
(sizeof(dss_precs)/sizeof(char*))];
unsigned prec_ind = thread_ind %
(sizeof(dss_precs)/sizeof(char*));
const char *dss = dss_precs[prec_ind];
int expected_err = (have_dss || prec_ind == 0) ? 0 : EFAULT;
assert_d_eq(mallctlnametomib("arena.0.dss", mib, &miblen), 0,
"Error in mallctlnametomib()");
mib[1] = arena_ind;
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, (void *)&dss,
sizeof(const char *)), 0, "Error in mallctlbymib()");
sizeof(const char *)), expected_err,
"Error in mallctlbymib()");
}
p = mallocx(1, MALLOCX_ARENA(arena_ind));