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mdbx: add mdbx_env_delete().

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Resolves https://github.com/erthink/libmdbx/issues/119
Related to https://github.com/Kerollmops/heed/issues/58

Change-Id: Iec5bf5978e45bb6843f3ed8dd06ea4d34f2895cb
This commit is contained in:
Leonid Yuriev
2020-10-09 22:43:14 +03:00
parent cd0c727880
commit 0627d902dd
7 changed files with 162 additions and 1 deletions
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23
src/osal.c
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@@ -521,6 +521,20 @@ MDBX_INTERNAL_FUNC int mdbx_removefile(const char *pathname) {
#endif
}
MDBX_INTERNAL_FUNC int mdbx_removedirectory(const char *pathname) {
#if defined(_WIN32) || defined(_WIN64)
const size_t wlen = mbstowcs(nullptr, pathname, INT_MAX);
if (wlen < 1 || wlen > /* MAX_PATH */ INT16_MAX)
return ERROR_INVALID_NAME;
wchar_t *const pathnameW = _alloca((wlen + 1) * sizeof(wchar_t));
if (wlen != mbstowcs(pathnameW, pathname, wlen + 1))
return ERROR_INVALID_NAME;
return RemoveDirectoryW(pathnameW) ? MDBX_SUCCESS : GetLastError();
#else
return rmdir(pathname) ? errno : MDBX_SUCCESS;
#endif
}
MDBX_INTERNAL_FUNC int mdbx_openfile(const enum mdbx_openfile_purpose purpose,
const MDBX_env *env, const char *pathname,
mdbx_filehandle_t *fd,
@@ -571,6 +585,12 @@ MDBX_INTERNAL_FUNC int mdbx_openfile(const enum mdbx_openfile_purpose purpose,
FlagsAndAttributes |=
(env->me_psize < env->me_os_psize) ? 0 : FILE_FLAG_NO_BUFFERING;
break;
case MDBX_OPEN_DELETE:
CreationDisposition = OPEN_EXISTING;
ShareMode |= FILE_SHARE_DELETE;
DesiredAccess =
FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES | DELETE | SYNCHRONIZE;
break;
}
*fd = CreateFileW(pathnameW, DesiredAccess, ShareMode, NULL,
@@ -619,6 +639,9 @@ MDBX_INTERNAL_FUNC int mdbx_openfile(const enum mdbx_openfile_purpose purpose,
flags |= O_FSYNC;
#endif
break;
case MDBX_OPEN_DELETE:
flags = O_RDWR;
break;
}
const bool direct_nocache_for_copy =