myconsole

A minimal, zero-config, MIT licensed, REPL used in Windows/Linux, supports connecting via Windows terminal, Linux shell or UDP socket.

Param

• char *prompt: the command prompt
• int write_fd: File descriptor to send result
• int read_fd: File descriptor to read command
• char* command: command with no spaces
• char* func: the callback fuction
• char* help: prompt text returned after send the [help] command
• const char* content: The result need sending to the write_fd

//if you want to run it in a Windows terminal, Linux shell
writefd = fileno(stdout);
readfd = fileno(stdin);

//or connect it via UDP socket
//should after daemonize();
if( (readfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0 ){
    perror("socket(readfd) error");
    exit(1);
}
struct sockaddr_in readAddr;

readAddr.sin_family = AF_INET;
readAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
readAddr.sin_port = htons(1235);


if (bind(readfd, (sockaddr *)&readAddr, sizeof(readAddr)) == -1) {
    perror("bind failed: readfd");
}
writefd=readfd;

The API

Init

int myconsole_init(char *prompt,int write_fd);

• Initialize myconsole
• add command [help] and set default prompt

Add Command and Callback

typedef int (*CONSOLE_COMMAND_FP)(int socket_id, int argc, char **argv);

int myconsole_add_command_func(char* command, CONSOLE_COMMAND_FP func, char* help);

int myprintf(int write_fd, const char* content);

• Register a command and its callback function
• The callback function needs to conform to the above template

int test_callback(int socket_id, int argc, char **argv)
{
    if( argc == 1){
        //func
    }else if(argc == 2 ){
        //func
    }
    }else{
        myprintf(socket_id,"test usage:");
        myprintf(socket_id,"\ttest [param1] [param2] \t--func info");
    }
    return 0;
}

Recv command

int myconsole_recv_command(int read_fd,int write_fd);

• Main API(a loop) for receiving and processing commands.
• The file descriptor should be a udp socket or standard output.