Method write

src/com/sun/jna/Structure.java:783–814

Writes the fields of the struct to native memory

()

     * Writes the fields of the struct to native memory
     */
    public void write() {
        // Avoid writing to a null pointer
        if (memory == PLACEHOLDER_MEMORY) {
            return;
        }

        // convenience: allocate memory if it hasn't been already; this
        // allows structures to do field-based initialization of arrays and not
        // have to explicitly call allocateMemory in a ctor
        ensureAllocated();

        // Update native FFI type information, if needed
        if (this instanceof ByValue) {
            getTypeInfo();
        }

        // Avoid redundant writes
        if (!busy().add(this)) {
            return;
        }
        try {
            // Write all fields, except those marked 'volatile'
            for (StructField sf : fields().values()) {
                if (!sf.isVolatile) {
                    writeField(sf);
                }
            }
        }
        finally {
            busy().remove(this);
        }
    }

    /** Write the given field to native memory.  The current value in the Java
     * field will be translated into native memory.