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@ -183,6 +183,10 @@ static boolean_t intro_zone_locked(malloc_zone_t* zone) {
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#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
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#endif
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#if defined(__clang__)
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#pragma clang diagnostic ignored "-Wc99-extensions"
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#endif
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static malloc_introspection_t mi_introspect = {
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.enumerator = &intro_enumerator,
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.good_size = &intro_good_size,
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11
src/page.c
11
src/page.c
@ -587,14 +587,17 @@ static void mi_page_extend_free(mi_heap_t* heap, mi_page_t* page, mi_tld_t* tld)
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// calculate the extend count
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const size_t bsize = (page->xblock_size < MI_HUGE_BLOCK_SIZE ? page->xblock_size : page_size);
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size_t extend = page->reserved - page->capacity;
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size_t max_extend = (bsize >= MI_MAX_EXTEND_SIZE ? MI_MIN_EXTEND : MI_MAX_EXTEND_SIZE/(uint32_t)bsize);
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if (max_extend < MI_MIN_EXTEND) max_extend = MI_MIN_EXTEND;
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mi_assert_internal(extend > 0);
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size_t max_extend = (bsize >= MI_MAX_EXTEND_SIZE ? MI_MIN_EXTEND : MI_MAX_EXTEND_SIZE/(uint32_t)bsize);
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if (max_extend < MI_MIN_EXTEND) { max_extend = MI_MIN_EXTEND; }
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mi_assert_internal(max_extend > 0);
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if (extend > max_extend) {
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// ensure we don't touch memory beyond the page to reduce page commit.
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// the `lean` benchmark tests this. Going from 1 to 8 increases rss by 50%.
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extend = (max_extend==0 ? 1 : max_extend);
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}
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extend = max_extend;
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}
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mi_assert_internal(extend > 0 && extend + page->capacity <= page->reserved);
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mi_assert_internal(extend < (1UL<<16));
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@ -239,7 +239,7 @@ static bool os_random_buf(void* buf, size_t buf_len) {
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if (mi_atomic_load_acquire(&no_getrandom)==0) {
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ssize_t ret = syscall(SYS_getrandom, buf, buf_len, GRND_NONBLOCK);
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if (ret >= 0) return (buf_len == (size_t)ret);
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if (ret != ENOSYS) return false;
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if (errno != ENOSYS) return false;
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mi_atomic_store_release(&no_getrandom, 1UL); // don't call again, and fall back to /dev/urandom
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}
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#endif
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