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#ifndef GSR_CLI_IPC_H
#define GSR_CLI_IPC_H
#include <stdbool.h>
#include <stddef.h>
#include <limits.h>
#include <pthread.h>
#define GSR_IPC_MAX_CLIENTS 8
#define GSR_IPC_MAX_REQUEST_SIZE 4096
#define GSR_IPC_MAX_ERROR_MESSAGE_SIZE 256
/*
These are called from the ipc thread while the recording is running.
Return false and write a message to |error_message| to reply to the request with an error.
*/
typedef struct {
bool (*stop)(char *error_message, size_t error_message_size, void *userdata);
bool (*toggle_pause)(char *error_message, size_t error_message_size, void *userdata);
bool (*toggle_replay_recording)(char *error_message, size_t error_message_size, void *userdata);
/* |seconds| is GSR_SAVE_REPLAY_SECONDS_FULL when the whole replay buffer should be saved */
bool (*save_replay)(int seconds, char *error_message, size_t error_message_size, void *userdata);
void *userdata;
} gsr_ipc_handlers;
typedef struct {
int fd;
char request[GSR_IPC_MAX_REQUEST_SIZE];
size_t request_size;
bool request_too_large;
} gsr_ipc_client;
/* Receives newline terminated json requests on a unix domain socket and replies to every request */
typedef struct {
bool initialized;
int socket_fd;
bool socket_bound;
char socket_filepath[PATH_MAX];
int wakeup_pipe[2];
gsr_ipc_client clients[GSR_IPC_MAX_CLIENTS];
int num_clients;
gsr_ipc_handlers handlers;
pthread_t thread;
bool thread_running;
} gsr_ipc;
/* Returns a |gsr_error| value. Creates the socket, requests are not handled until gsr_ipc_start is called */
int gsr_ipc_init(gsr_ipc *self, const char *socket_filepath);
void gsr_ipc_deinit(gsr_ipc *self);
/* Returns a |gsr_error| value. Starts handling requests. Does nothing if |self| hasn't been initialized */
int gsr_ipc_start(gsr_ipc *self, const gsr_ipc_handlers *handlers);
/* Stops handling requests. Does nothing if the ipc hasn't been started */
void gsr_ipc_stop(gsr_ipc *self);
#endif /* GSR_CLI_IPC_H */
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