unleashed-firmware/applications/rpc/rpc_cli.c

#include <cli/cli.h>
#include <furi.h>
#include <rpc/rpc.h>
#include <furi-hal-vcp.h>

typedef struct {
    Cli* cli;
    bool session_close_request;
} CliRpc;

#define CLI_READ_BUFFER_SIZE 100

static void rpc_send_bytes_callback(void* context, uint8_t* bytes, size_t bytes_len) {
    furi_assert(context);
    furi_assert(bytes);
    furi_assert(bytes_len);
    CliRpc* cli_rpc = context;

    cli_write(cli_rpc->cli, bytes, bytes_len);
}

static void rpc_session_close_callback(void* context) {
    furi_assert(context);
    CliRpc* cli_rpc = context;

    cli_rpc->session_close_request = true;
}

void rpc_cli_command_start_session(Cli* cli, string_t args, void* context) {
    Rpc* rpc = context;

    RpcSession* rpc_session = rpc_session_open(rpc);
    if(rpc_session == NULL) {
        printf("Another session is in progress\r\n");
        return;
    }

    CliRpc cli_rpc = {.cli = cli, .session_close_request = false};
    rpc_session_set_context(rpc_session, &cli_rpc);
    rpc_session_set_send_bytes_callback(rpc_session, rpc_send_bytes_callback);
    rpc_session_set_close_callback(rpc_session, rpc_session_close_callback);

    uint8_t* buffer = furi_alloc(CLI_READ_BUFFER_SIZE);
    size_t size_received = 0;

    while(1) {
        size_received = furi_hal_vcp_rx_with_timeout(buffer, CLI_READ_BUFFER_SIZE, 50);
        if(!furi_hal_vcp_is_connected() || cli_rpc.session_close_request) {
            break;
        }

        if(size_received) {
            rpc_session_feed(rpc_session, buffer, size_received, 3000);
        }
    }

    rpc_session_close(rpc_session);
    free(buffer);
}