instruction.h

Go to the documentation of this file.

/*
 * Copyright (C) 2013 Glyptodon LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */


#ifndef _GUAC_INSTRUCTION_H
#define _GUAC_INSTRUCTION_H

#include "socket.h"

#define GUAC_INSTRUCTION_MAX_LENGTH 8192

#define GUAC_INSTRUCTION_MAX_DIGITS 5

#define GUAC_INSTRUCTION_MAX_ELEMENTS 64

typedef enum guac_instruction_parse_state {

    GUAC_INSTRUCTION_PARSE_LENGTH,

    GUAC_INSTRUCTION_PARSE_CONTENT,

    GUAC_INSTRUCTION_PARSE_COMPLETE,

    GUAC_INSTRUCTION_PARSE_ERROR

} guac_instruction_parse_state;

typedef struct guac_instruction {

    char* opcode;

    int argc;

    char** argv;

    guac_instruction_parse_state state;

    int __element_length;

    int __elementc;

    char* __elementv[GUAC_INSTRUCTION_MAX_ELEMENTS];

} guac_instruction;

guac_instruction* guac_instruction_alloc();

void guac_instruction_reset(guac_instruction* instruction);

int guac_instruction_append(guac_instruction* instruction,
        void* buffer, int length);

void guac_instruction_free(guac_instruction* instruction);

int guac_instruction_waiting(guac_socket* socket, int usec_timeout);

guac_instruction* guac_instruction_read(guac_socket* socket, int usec_timeout);

guac_instruction* guac_instruction_expect(guac_socket* socket,
        int usec_timeout, const char* opcode);

#endif