OS_SHMBARRIER     455 third_party/sqlite/src/src/test_osinst.c   vfslog_call(p->pVfslog, OS_SHMBARRIER, p->iFileId, t, SQLITE_OK, 0, 0);
OS_SHMBARRIER     786 third_party/sqlite/src/src/test_osinst.c     case OS_SHMBARRIER:        zEvent = "xShmBarrier"; break;