lib/libautosuspend/libautosuspend.c

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <dlfcn.h>

#define LOG_TAG "libautosuspend"

// #include <liblog/lynq_deflog.h>
#include <log/log.h>

#define SERVER_PATH "/tmp/autosuspend.server"
// #define CLIENT_PATH "/tmp/autosuspend.client"


static int send_cmd(char * value,int len)
{
    int client_sock, rc;
    struct sockaddr_un server_sockaddr; 
    struct sockaddr_un client_sockaddr; 



    if(value == NULL)
    {
       return -1;
    }

    /**************************************/
    /* Create a UNIX domain stream socket */
    /**************************************/
    client_sock = socket(AF_UNIX, SOCK_STREAM, 0);
    if (client_sock == -1) {
        ALOGI("SOCKET ERROR ");
        return -5;
    }

    /***************************************/
    /* Set up the UNIX sockaddr structure  */
    /* by using AF_UNIX for the family and */
    /* giving it a filepath to bind to.    */
    /*                                     */
    /* Unlink the file so the bind will    */
    /* succeed, then bind to that file.    */
    /***************************************/
    client_sockaddr.sun_family = AF_UNIX;   
    // strcpy(client_sockaddr.sun_path, CLIENT_PATH); 
    sprintf(client_sockaddr.sun_path,"/tmp/suspend.%d.client",(int)getpid());
    len = sizeof(client_sockaddr);
    
    unlink(client_sockaddr.sun_path);
    rc = bind(client_sock, (struct sockaddr *) &client_sockaddr, len);
    if (rc == -1){
        ALOGI("BIND ERROR ");
        close(client_sock);
        return -4;
    }
        
    /***************************************/
    /* Set up the UNIX sockaddr structure  */
    /* for the server socket and connect   */
    /* to it.                              */
    /***************************************/
    server_sockaddr.sun_family = AF_UNIX;
    strcpy(server_sockaddr.sun_path, SERVER_PATH);
    rc = connect(client_sock, (struct sockaddr *) &server_sockaddr, len);
    if(rc == -1){
        ALOGI("CONNECT ERROR ");
        close(client_sock);
        return -3;
    }
    
    /************************************/
    /* Copy the data to the buffer and  */
    /* send it to the server socket.    */
    /************************************/
    // strcpy(buf, DATA);                 
    printf("Sending data...\n");
    rc = send(client_sock, value, len, 0);
    if (rc == -1) {
        ALOGI("SEND ERROR ");
        close(client_sock);
        return -2;
    }   
    else {
        ALOGI("Data sent: %s\n",value);
    }

    close(client_sock);

    return rc;

}

int lynq_autosleep_enable(void)
{
  char value[15]="enable";
  int rc = send_cmd(value,strlen(value));
  if(rc < 0)
  {
      ALOGI("libautosleep_enable ret %d\n",rc);
  }
  return rc;
}

int lynq_autosleep_disable(void)
{
  char value[15]="disable";
  int rc = send_cmd(value,strlen(value));
  if(rc < 0)
  {
      ALOGI("libautosleep_disable ret %d\n",rc);
  }
  return rc;

}