// THIS IS AN AUTOMATICALLY GENERATED FILE.  DO NOT MODIFY
// BY HAND!!
//
// Generated by lcm-gen

// #include <lcm.h>
// #include <lcm_coretypes.h>
#include "lcmtype.h"
#include <stdint.h>
#include <stdlib.h>


#ifndef _grid_map_t_h
#define _grid_map_t_h

#ifdef __cplusplus
extern "C" {
#endif

typedef struct _grid_map_t grid_map_t;
struct _grid_map_t {
    int64_t utime;
    int8_t encoding;
    double x0;
    double y0;
    double meters_per_pixel;
    int32_t width;
    int32_t height;
    int32_t datalen;
    char *src;
    uint8_t *dst;
};

/**
 * Create a deep copy of a grid_map_t.
 * When no longer needed, destroy it with grid_map_t_destroy()
 */
grid_map_t *grid_map_t_copy(const grid_map_t *to_copy);

/**
 * Destroy an instance of grid_map_t created by grid_map_t_copy()
 */
void grid_map_t_destroy(grid_map_t *to_destroy);

/**
 * Identifies a single subscription.  This is an opaque data type.
 */
typedef struct _grid_map_t_subscription_t grid_map_t_subscription_t;

/**
 * Prototype for a callback function invoked when a message of type
 * grid_map_t is received.
 */
typedef void (*grid_map_t_handler_t)(const lcm_recv_buf_t *rbuf,
                                     const char *channel, const grid_map_t *msg,
                                     void *userdata);

/**
 * Publish a message of type grid_map_t using LCM.
 *
 * @param lcm The LCM instance to publish with.
 * @param channel The channel to publish on.
 * @param msg The message to publish.
 * @return 0 on success, <0 on error.  Success means LCM has transferred
 * responsibility of the message data to the OS.
 */
int grid_map_t_publish(lcm_t *lcm, const char *channel, const grid_map_t *msg);

/**
 * Subscribe to messages of type grid_map_t using LCM.
 *
 * @param lcm The LCM instance to subscribe with.
 * @param channel The channel to subscribe to.
 * @param handler The callback function invoked by LCM when a message is
 * received. This function is invoked by LCM during calls to lcm_handle() and
 *                lcm_handle_timeout().
 * @param userdata An opaque pointer passed to @p handler when it is invoked.
 * @return 0 on success, <0 if an error occured
 */
grid_map_t_subscription_t *grid_map_t_subscribe(lcm_t *lcm, const char *channel,
                                                grid_map_t_handler_t handler,
                                                void *userdata);

/**
 * Removes and destroys a subscription created by grid_map_t_subscribe()
 */
int grid_map_t_unsubscribe(lcm_t *lcm, grid_map_t_subscription_t *hid);

/**
 * Sets the queue capacity for a subscription.
 * Some LCM providers (e.g., the default multicast provider) are implemented
 * using a background receive thread that constantly revceives messages from
 * the network.  As these messages are received, they are buffered on
 * per-subscription queues until dispatched by lcm_handle().  This function
 * how many messages are queued before dropping messages.
 *
 * @param subs the subscription to modify.
 * @param num_messages The maximum number of messages to queue
 *  on the subscription.
 * @return 0 on success, <0 if an error occured
 */
int grid_map_t_subscription_set_queue_capacity(grid_map_t_subscription_t *subs,
                                               int num_messages);

/**
 * Encode a message of type grid_map_t into binary form.
 *
 * @param buf The output buffer.
 * @param offset Encoding starts at this byte offset into @p buf.
 * @param maxlen Maximum number of bytes to write.  This should generally
 *               be equal to grid_map_t_encoded_size().
 * @param msg The message to encode.
 * @return The number of bytes encoded, or <0 if an error occured.
 */
int grid_map_t_encode(void *buf, int offset, int maxlen, const grid_map_t *p);

/**
 * Decode a message of type grid_map_t from binary form.
 * When decoding messages containing strings or variable-length arrays, this
 * function may allocate memory.  When finished with the decoded message,
 * release allocated resources with grid_map_t_decode_cleanup().
 *
 * @param buf The buffer containing the encoded message
 * @param offset The byte offset into @p buf where the encoded message starts.
 * @param maxlen The maximum number of bytes to read while decoding.
 * @param msg Output parameter where the decoded message is stored
 * @return The number of bytes decoded, or <0 if an error occured.
 */
int grid_map_t_decode(const void *buf, int offset, int maxlen, grid_map_t *msg);

/**
 * Release resources allocated by grid_map_t_decode()
 * @return 0
 */
int grid_map_t_decode_cleanup(grid_map_t *p);

/**
 * Check how many bytes are required to encode a message of type grid_map_t
 */
int grid_map_t_encoded_size(const grid_map_t *p);

// LCM support functions. Users should not call these
int64_t __grid_map_t_get_hash(void);
uint64_t __grid_map_t_hash_recursive(const __lcm_hash_ptr *p);
int __grid_map_t_encode_array(void *buf, int offset, int maxlen,
                              const grid_map_t *p, int elements);
int __grid_map_t_decode_array(const void *buf, int offset, int maxlen,
                              grid_map_t *p, int elements);
int __grid_map_t_decode_array_cleanup(grid_map_t *p, int elements);
int __grid_map_t_encoded_array_size(const grid_map_t *p, int elements);
int __grid_map_t_clone_array(const grid_map_t *p, grid_map_t *q, int elements);

#ifdef __cplusplus
}
#endif

#endif