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saisasidhar/notify.c

Created April 6, 2016 16:12
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Revisions

  1. Sai Sasidhar Maddali created this gist Apr 6, 2016.
    50 changes: 50 additions & 0 deletions notify.c
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,50 @@
    #include<stdio.h>
    #include<stdlib.h>
    #include<sys/types.h>
    #include"include/uv.h"

    struct my_data{
    int fd;
    char *buf;
    }priv;


    void read_callback(uv_poll_t * handle, int status, int events)
    {
    uv_loop_t * my_loop = uv_default_loop();
    if(!status)
    {
    // For only one read
    uv_poll_stop(handle);
    printf("Data available for reading\n");
    struct my_data *temp = my_loop->data;
    temp->buf = (char *)malloc(sizeof(char)*10);
    read(temp->fd, temp->buf, 10);
    printf("%s\n", temp->buf);
    }
    else
    printf("False positive");
    }

    int main() {

    uv_loop_t * my_default_loop;
    uv_poll_t * file_poll;

    struct my_data *ptr = &priv;

    file_poll = (uv_poll_t *)malloc(sizeof(uv_poll_t));

    my_default_loop = uv_default_loop();
    uv_loop_init(my_default_loop);
    my_default_loop->data = (void *)ptr;

    ptr->fd=open("pipe", O_RDONLY);

    uv_poll_init(my_default_loop, file_poll, ptr->fd);
    uv_poll_start(file_poll, UV_READABLE, read_callback);

    uv_run(my_default_loop, UV_RUN_DEFAULT);

    return 0;
    }