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#include <stdio.h>
#include <pthread.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include "shm.h"
int main(void)
{
struct share_data *data;
int rv;
if (create_share() != 0)
return 1;
data = get_share();
if (!data)
return 1;
init_share(data);
if (pthread_mutex_lock(&data->m) != 0)
return 1;
printf("recv (%d): waiting for signal\n", getpid());
do {
rv = pthread_cond_wait(&data->c, &data->m);
if (rv != 0) {
if (rv == EOWNERDEAD) {
printf("recv(%d): recover mutex\n", getpid());
data->msg[0] = 0;
pthread_mutex_consistent(&data->m);
} else {
/* maybe rv == ENOTRECOVERABLE */
return 1;
}
}
} while (rv != 0);
/* set "received" uprobe here */
printf("recv (%d): received signal: %s\n", getpid(), data->msg);
pthread_mutex_unlock(&data->m);
remove_share();
return 0;
}
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