/*****************************************************
copyright (C), 2014-2015, Lighting Studio. Co.,Ltd.
File name：
Author：Jerey_JobsVersion:0.1Date:
Description：
Funcion List:
*****************************************************/
#include
#include
#include
#include
#include "shmdata.c"
#include
#define BUFFSIZE 2048
int main()
{
int running = 1;
void *shm = NULL;
struct shared_use_st * shared = NULL;
char buffer[BUFFSIZE + 1];
int shmid;
shmid = shmget((key_t)1234,sizeof(struct shared_use_st),0666|IPC_CREAT);
if(shmid == -1)
{
fprintf(stderr,"shmget failed\n");
exit(EXIT_FAILURE);
}
shm = shmat(shmid,0,0);
if(shm == (void*)-1)
{
fprintf(stderr,"shmat failed\n");
exit(EXIT_FAILURE);
}
printf("\n memary attached at %d\n",(int)shm);
shared = (struct shared_use_st *)shm;
//shared->written = 0;
while(running)
{
while(shared->written == 1)
{
sleep(1);
printf("waitting...\n");
}
printf("Enter some text:\n");
fgets(buffer,BUFFSIZE,stdin);
strncpy(shared->text,buffer,TEXT_SZ);
/*if(shared->written != 0)
{
printf("you wrote : %s\n",shared->text);
sleep(rand()%3);
*/
shared->written = 1;
if(strncmp(shared->text,"end",3) == 0)
running = 0;
// }
// else
//sleep(1);
}
if(shmdt(shm) == -1)
{
fprintf(stderr,"shmdt failed\n");
exit(EXIT_FAILURE);
}
/* if(shmctl(shmid,IPC_RMID,0) == -1)
{
fprintf(stderr,"stmctl failed\n");
exit(EXIT_FAILURE);
}*/
sleep(2);
exit(EXIT_SUCCESS);
return 0;
}
/*****************************************************
copyright (C), 2014-2015, Lighting Studio. Co.,Ltd.
File name：
Author：Jerey_JobsVersion:0.1Date:
Description：
Funcion List:
*****************************************************/
#include
#include
#include
#include
#include "shmdata.c"
#include
void ToUpper(char *str);
int main()
{
int running = 1;
void *shm = NULL;
struct shared_use_st * shared;
int shmid;
shmid = shmget((key_t)1234,sizeof(struct shared_use_st),0666|IPC_CREAT);
if(shmid == -1)
{
fprintf(stderr,"shmget failed\n");
exit(EXIT_FAILURE);
}
shm = shmat(shmid,0,0);
if(shm == (void*)-1)
{
fprintf(stderr,"shmat failed\n");
exit(EXIT_FAILURE);
}
printf("\n memary attached at %d\n",(int)shm);
shared = (struct shared_use_st *)shm;
shared->written = 0;
while(running)
{
if(shared->written != 0)
{
ToUpper(shared->text);
printf("you wrote : %s\n",shared->text);
sleep(rand()%3);
shared->written = 0;
if(strncmp(shared->text,"END",3) == 0)
running = 0;
}
else
sleep(1);
}
if(shmdt(shm) == -1)
{
fprintf(stderr,"shmdt failed\n");
exit(EXIT_FAILURE);
}
if(shmctl(shmid,IPC_RMID,0) == -1)
{
fprintf(stderr,"stmctl failed\n");
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
return 0;
}
void ToUpper(char *str)
{
while(*str)
{
*str = toupper(*str);
*str++;
}
}
