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mdbx: fallback to non-OFD locks after EINVAL.

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Related to https://github.com/erthink/libmdbx/issues/97
This commit is contained in:
Leonid Yuriev 2021-05-26 20:15:48 +03:00
parent b0830db25a
commit 3e0c7758ef
1 changed files with 16 additions and 0 deletions
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16
src/lck-posix.c
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@ -198,6 +198,22 @@ static int lck_op(mdbx_filehandle_t fd, int cmd, int lck, off_t offset,
return MDBX_SUCCESS;
}
rc = errno;
#if MDBX_USE_OFDLOCKS
if (rc == EINVAL &&
(cmd == F_OFD_SETLK || cmd == F_OFD_SETLKW || cmd == F_OFD_GETLK)) {
/* fallback to non-OFD locks */
if (cmd == F_OFD_SETLK)
cmd = F_SETLK;
else if (cmd == F_OFD_SETLKW)
cmd = F_SETLKW;
else
cmd = F_GETLK;
op_setlk = F_SETLK;
op_setlkw = F_SETLKW;
op_getlk = F_GETLK;
continue;
}
#endif /* MDBX_USE_OFDLOCKS */
if (rc != EINTR || cmd == op_setlkw) {
mdbx_assert(nullptr, MDBX_IS_ERROR(rc));
return rc;