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mdbx: check system pagesize (paranoia).

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Change-Id: I596c686a996f7d1521789f22900022c4da629e1b
This commit is contained in:
Leo Yuriev 2017-05-28 18:49:05 +03:00
parent a0ddf167dd
commit bd5d092a2b
1 changed files with 15 additions and 4 deletions
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19
src/mdbx.c
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@ -3804,14 +3804,25 @@ int __cold mdbx_env_create(MDBX_env **penv) {
env->me_fd = INVALID_HANDLE_VALUE;
env->me_lfd = INVALID_HANDLE_VALUE;
env->me_pid = mdbx_getpid();
mdbx_env_setup_limits(env, env->me_os_psize = mdbx_syspagesize());
if (!is_power2(env->me_os_psize))
return MDBX_INCOMPATIBLE;
int rc;
env->me_os_psize = mdbx_syspagesize();
if (!is_power2(env->me_os_psize) || env->me_os_psize < MIN_PAGESIZE) {
mdbx_error("unsuitable system pageize %u", env->me_os_psize);
rc = MDBX_INCOMPATIBLE;
goto bailout;
}
mdbx_env_setup_limits(env, env->me_os_psize);
VALGRIND_CREATE_MEMPOOL(env, 0, 0);
env->me_signature = MDBX_ME_SIGNATURE;
*penv = env;
return MDBX_SUCCESS;
bailout:
free(env);
*penv = nullptr;
return rc;
}
static int __cold mdbx_env_map(MDBX_env *env, void *addr, size_t usedsize) {