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https://github.com/isar/libmdbx.git
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mdbx: add mdbx_limits_xyz().
Change-Id: I56c79704c59386a0c4d84b001020484c23925e6c
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parent
08fa2c1746
commit
a0d10e41b8
10
mdbx.h
10
mdbx.h
@ -918,8 +918,7 @@ LIBMDBX_API int mdbx_env_set_maxdbs(MDBX_env *env, MDBX_dbi dbs);
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* [in] env An environment handle returned by mdbx_env_create()
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*
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* Returns The maximum size of a key we can write. */
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LIBMDBX_API int mdbx_env_get_maxkeysize(MDBX_env *env);
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LIBMDBX_API int mdbx_get_maxkeysize(size_t pagesize);
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LIBMDBX_API intptr_t mdbx_env_get_maxkeysize(MDBX_env *env);
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/* Set application information associated with the MDBX_env.
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*
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@ -1692,6 +1691,13 @@ LIBMDBX_API int mdbx_is_dirty(const MDBX_txn *txn, const void *ptr);
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LIBMDBX_API int mdbx_dbi_sequence(MDBX_txn *txn, MDBX_dbi dbi, uint64_t *result,
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uint64_t increment);
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LIBMDBX_API intptr_t mdbx_limits_pgsize_min(void);
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LIBMDBX_API intptr_t mdbx_limits_pgsize_max(void);
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LIBMDBX_API intptr_t mdbx_limits_dbsize_min(intptr_t pagesize);
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LIBMDBX_API intptr_t mdbx_limits_dbsize_max(intptr_t pagesize);
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LIBMDBX_API intptr_t mdbx_limits_keysize_max(intptr_t pagesize);
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LIBMDBX_API intptr_t mdbx_limits_txnsize_max(intptr_t pagesize);
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/*----------------------------------------------------------------------------*/
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/* attribute support functions for Nexenta */
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typedef uint_fast64_t mdbx_attr_t;
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61
src/mdbx.c
61
src/mdbx.c
@ -4921,7 +4921,7 @@ fail:
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return rc;
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}
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int __cold mdbx_env_get_maxkeysize(MDBX_env *env) {
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intptr_t __cold mdbx_env_get_maxkeysize(MDBX_env *env) {
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if (!env || env->me_signature != MDBX_ME_SIGNATURE || !env->me_maxkey_limit)
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return -MDBX_EINVAL;
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return env->me_maxkey_limit;
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@ -4935,18 +4935,6 @@ int __cold mdbx_env_get_maxkeysize(MDBX_env *env) {
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#define mdbx_maxgc_ov1page(pagesize) \
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(((pagesize)-PAGEHDRSZ) / sizeof(pgno_t) - 1)
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int mdbx_get_maxkeysize(size_t pagesize) {
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if (pagesize == 0)
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pagesize = mdbx_syspagesize();
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intptr_t nodemax = mdbx_nodemax(pagesize);
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if (nodemax < 0)
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return -MDBX_EINVAL;
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intptr_t maxkey = mdbx_maxkey(nodemax);
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return (maxkey > 0 && maxkey < INT_MAX) ? (int)maxkey : -MDBX_EINVAL;
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}
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static void __cold mdbx_setup_pagesize(MDBX_env *env, const size_t pagesize) {
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STATIC_ASSERT(SSIZE_MAX > MAX_MAPSIZE);
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STATIC_ASSERT(MIN_PAGESIZE > sizeof(MDBX_page));
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@ -12325,6 +12313,53 @@ int mdbx_dbi_sequence(MDBX_txn *txn, MDBX_dbi dbi, uint64_t *result,
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return MDBX_SUCCESS;
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}
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/*----------------------------------------------------------------------------*/
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__cold intptr_t mdbx_limits_keysize_max(intptr_t pagesize) {
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if (pagesize < 1)
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pagesize = (intptr_t)mdbx_syspagesize();
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else if (unlikely(pagesize < MIN_PAGESIZE || pagesize > MAX_PAGESIZE ||
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!mdbx_is_power2((size_t)pagesize)))
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return -MDBX_EINVAL;
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return mdbx_maxkey(mdbx_nodemax(pagesize));
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}
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__cold intptr_t mdbx_limits_pgsize_min(void) { return MIN_PAGESIZE; }
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__cold intptr_t mdbx_limits_pgsize_max(void) { return MAX_PAGESIZE; }
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__cold intptr_t mdbx_limits_dbsize_min(intptr_t pagesize) {
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if (pagesize < 1)
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pagesize = (intptr_t)mdbx_syspagesize();
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else if (unlikely(pagesize < MIN_PAGESIZE || pagesize > MAX_PAGESIZE ||
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!mdbx_is_power2((size_t)pagesize)))
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return -MDBX_EINVAL;
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return MIN_PAGENO * pagesize;
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}
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__cold intptr_t mdbx_limits_dbsize_max(intptr_t pagesize) {
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if (pagesize < 1)
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pagesize = (intptr_t)mdbx_syspagesize();
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else if (unlikely(pagesize < MIN_PAGESIZE || pagesize > MAX_PAGESIZE ||
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!mdbx_is_power2((size_t)pagesize)))
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return -MDBX_EINVAL;
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const intptr_t limit = MAX_PAGENO * pagesize;
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return ((size_t)limit < MAX_MAPSIZE) ? limit : MAX_PAGESIZE;
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}
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__cold intptr_t mdbx_limits_txnsize_max(intptr_t pagesize) {
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if (pagesize < 1)
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pagesize = (intptr_t)mdbx_syspagesize();
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else if (unlikely(pagesize < MIN_PAGESIZE || pagesize > MAX_PAGESIZE ||
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!mdbx_is_power2((size_t)pagesize)))
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return -MDBX_EINVAL;
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return pagesize * (MDBX_LIST_MAX - 1);
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}
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/*----------------------------------------------------------------------------*/
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/* attribute support functions for Nexenta */
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10
test/main.cc
10
test/main.cc
@ -1,4 +1,4 @@
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/*
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/*
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* Copyright 2017-2018 Leonid Yuriev <leo@yuriev.ru>
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* and other libmdbx authors: please see AUTHORS file.
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* All rights reserved.
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@ -193,10 +193,10 @@ int main(int argc, char *const argv[]) {
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params.keylen_max = params.keylen_min;
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continue;
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}
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if (config::parse_option(
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argc, argv, narg, "keylen.max", params.keylen_max, config::no_scale,
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0, std::min(mdbx_get_maxkeysize(0), (int)UINT16_MAX))) {
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if (config::parse_option(argc, argv, narg, "keylen.max", params.keylen_max,
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config::no_scale, 0,
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std::min((unsigned)mdbx_limits_keysize_max(0),
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(unsigned)UINT16_MAX))) {
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if (params.keylen_min > params.keylen_max)
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params.keylen_min = params.keylen_max;
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continue;
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