main.c File Reference

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <uv.h>

Go to the source code of this file.

Classes
struct	write_req_t

Functions
void	alloc_buffer (uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf)
void	free_write_req (uv_write_t *req)
void	on_stdout_write (uv_write_t *req, int status)
void	on_file_write (uv_write_t *req, int status)
void	write_data (uv_stream_t *dest, size_t size, uv_buf_t buf, uv_write_cb cb)
void	read_stdin (uv_stream_t *stream, ssize_t nread, const uv_buf_t *buf)
int	main (int argc, char **argv)

Variables
uv_loop_t *	loop
uv_pipe_t	stdin_pipe
uv_pipe_t	stdout_pipe
uv_pipe_t	file_pipe

Function Documentation

alloc_buffer()

void alloc_buffer	(	uv_handle_t *	handle,
		size_t	suggested_size,
		uv_buf_t *	buf
	)

Definition at line 19 of file main.c.

                                                                             {
    *buf = uv_buf_init((char*) malloc(suggested_size), suggested_size);
}

References malloc(), and uv_buf_init().

free_write_req()

void free_write_req

(

uv_write_t *

req

)

Definition at line 23 of file main.c.

                                     {
    write_req_t *wr = (write_req_t*) req;
    free(wr->buf.base);
    free(wr);
}

References uv_buf_t::base, write_req_t::buf, free(), and req.

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 62 of file main.c.

                                {
    loop = uv_default_loop();
 
    uv_pipe_init(loop, &stdin_pipe, 0);
    uv_pipe_open(&stdin_pipe, 0);
 
    uv_pipe_init(loop, &stdout_pipe, 0);
    uv_pipe_open(&stdout_pipe, 1);
    
    uv_fs_t file_req;
    int fd = uv_fs_open(loop, &file_req, argv[1], O_CREAT | O_RDWR, 0644, NULL);
    uv_pipe_init(loop, &file_pipe, 0);
    uv_pipe_open(&file_pipe, fd);
 
    uv_read_start((uv_stream_t*)&stdin_pipe, alloc_buffer, read_stdin);
 
    uv_run(loop, UV_RUN_DEFAULT);
    return 0;
}

References alloc_buffer(), argv, fd, file_pipe, loop, NULL, O_CREAT, O_RDWR, read_stdin(), stdin_pipe, stdout_pipe, uv_default_loop(), uv_fs_open(), uv_pipe_init(), uv_pipe_open(), uv_read_start(), uv_run(), and UV_RUN_DEFAULT.

on_file_write()

void on_file_write	(	uv_write_t *	req,
		int	status
	)

Definition at line 33 of file main.c.

                                                {
    free_write_req(req);
}

References free_write_req(), and req.

Referenced by read_stdin().

on_stdout_write()

void on_stdout_write	(	uv_write_t *	req,
		int	status
	)

Definition at line 29 of file main.c.

                                                  {
    free_write_req(req);
}

References free_write_req(), and req.

Referenced by read_stdin().

read_stdin()

void read_stdin	(	uv_stream_t *	stream,
		ssize_t	nread,
		const uv_buf_t *	buf
	)

Definition at line 44 of file main.c.

                                                                         {
    if (nread < 0){
        if (nread == UV_EOF){
            // end of file
            uv_close((uv_handle_t *)&stdin_pipe, NULL);
            uv_close((uv_handle_t *)&stdout_pipe, NULL);
            uv_close((uv_handle_t *)&file_pipe, NULL);
        }
    } else if (nread > 0) {
        write_data((uv_stream_t *)&stdout_pipe, nread, *buf, on_stdout_write);
        write_data((uv_stream_t *)&file_pipe, nread, *buf, on_file_write);
    }
 
    // OK to free buffer as write_data copies it.
    if (buf->base)
        free(buf->base);
}

References file_pipe, free(), NULL, on_file_write(), on_stdout_write(), stdin_pipe, stdout_pipe, uv_close(), and write_data().

Referenced by main().

write_data()

void write_data	(	uv_stream_t *	dest,
		size_t	size,
		uv_buf_t	buf,
		uv_write_cb	cb
	)

Definition at line 37 of file main.c.

                                                                              {
    write_req_t *req = (write_req_t*) malloc(sizeof(write_req_t));
    req->buf = uv_buf_init((char*) malloc(size), size);
    memcpy(req->buf.base, buf.base, size);
    uv_write((uv_write_t*) req, (uv_stream_t*)dest, &req->buf, 1, cb);
}

References cb, dest, malloc(), memcpy(), req, uv_buf_init(), and uv_write().

Referenced by read_stdin().

Variable Documentation

file_pipe

uv_pipe_t file_pipe

Definition at line 17 of file main.c.

Referenced by main(), and read_stdin().

loop

uv_loop_t* loop

Definition at line 14 of file main.c.

stdin_pipe

uv_pipe_t stdin_pipe

Definition at line 15 of file main.c.

Referenced by main(), read_stdin(), rz_subprocess_start_opt(), rz_sys_cmd_str_full(), and system_exec_stdin().

stdout_pipe

uv_pipe_t stdout_pipe

Definition at line 16 of file main.c.

Referenced by main(), read_stdin(), rz_subprocess_start_opt(), rz_sys_cmd_str_full(), and system_exec_stdin().