Function grpcio_sys::grpc_tls_certificate_provider_file_watcher_create

pub unsafe extern "C" fn grpc_tls_certificate_provider_file_watcher_create(
    private_key_path: *const c_char, 
    identity_certificate_path: *const c_char, 
    root_cert_path: *const c_char, 
    refresh_interval_sec: c_uint
) -> *mut grpc_tls_certificate_provider

Creates a grpc_tls_certificate_provider that will watch the credential changes on the file system. This provider will always return the up-to-date cert data for all the cert names callers set through |grpc_tls_credentials_options|. Note that this API only supports one key-cert file and hence one set of identity key-cert pair, so SNI(Server Name Indication) is not supported.

• private_key_path is the file path of the private key. This must be set if |identity_certificate_path| is set. Otherwise, it could be null if no identity credentials are needed.
• identity_certificate_path is the file path of the identity certificate chain. This must be set if |private_key_path| is set. Otherwise, it could be null if no identity credentials are needed.
• root_cert_path is the file path to the root certificate bundle. This may be null if no root certs are needed.
• refresh_interval_sec is the refreshing interval that we will check the files for updates. It does not take ownership of parameters. It is used for experimental purpose for now and subject to change.