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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;
data = get_share();
if (!data)
return 1;
rv = pthread_mutex_lock(&data->m);
if (rv != 0) {
if (rv == EOWNERDEAD) {
printf("send (%d): recover mutex\n", getpid());
data->msg[0] = 0;
pthread_mutex_consistent(&data->m);
} else {
/* maybe rv == ENOTRECOVERABLE */
return 1;
}
}
printf("send (%d): type message and hit RETURN to send signal\n",
getpid());
fgets(data->msg, sizeof(data->msg), stdin);
/* set "sending" uprobe here */
pthread_cond_signal(&data->c);
pthread_mutex_unlock(&data->m);
sleep(1);
return 0;
}
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