Function wasmfs_create_directory

system/lib/wasmfs/syscalls.cpp:660–664

This function is exposed to users and allows users to specify a particular backend that a directory should be created within.

// This function is exposed to users and allows users to specify a particular
// backend that a directory should be created within.
int wasmfs_create_directory(char* path, mode_t mode, backend_t backend) {
  static_assert(std::is_same_v<decltype(doMkdir(0, 0, 0)), int>,
                "unexpected conversion from result of doMkdir to int");
  return doMkdir(path::parseParent(path), mode, backend);
}

// TODO: Test this.
int __syscall_mkdirat(int dirfd, const char* path, mode_t mode) {