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mdbx: workaround for Windows LockFileEx/WriteFile bug.

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This resolves https://github.com/leo-yuriev/libmdbx/issues/25
This commit is contained in:
Leo Yuriev
2018-01-31 15:15:54 +03:00
parent 5c9baa06b9
commit 5cfec7a832
3 changed files with 22 additions and 1 deletions
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9
src/mdbx.c
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@@ -4450,6 +4450,7 @@ int __cold mdbx_env_create(MDBX_env **penv) {
#if defined(_WIN32) || defined(_WIN64)
InitializeSRWLock(&env->me_remap_guard);
InitializeCriticalSection(&env->me_windowsbug_lock);
#else
rc = mdbx_fastmutex_init(&env->me_remap_guard);
if (unlikely(rc != MDBX_SUCCESS)) {
@@ -5487,6 +5488,14 @@ int __cold mdbx_env_close_ex(MDBX_env *env, int dont_sync) {
mdbx_env_close0(env);
mdbx_ensure(env, mdbx_fastmutex_destroy(&env->me_dbi_lock) == MDBX_SUCCESS);
#if defined(_WIN32) || defined(_WIN64)
/* me_remap_guard don't have destructor (Slim Reader/Writer Lock) */
DeleteCriticalSection(&env->me_windowsbug_lock);
#else
mdbx_ensure(env,
mdbx_fastmutex_destroy(&env->me_remap_guard) == MDBX_SUCCESS);
#endif /* Windows */
env->me_signature = 0;
free(env);