Subj : Help me using pthreah!!! :) please...
To   : comp.programming.threads
From : tranky
Date : Sat Jun 25 2005 12:26 pm

Hello! I'm an italian unix user, i don't know unix very well, so...i need
your help.
Excuse me for my english, but english teacher in italy are not good! :)
I've this code of Reader-Writer Problem. I want that writer 2  starts N
seconds
after the execution of writer1.
What i will do??
I thing i will use the function pthread_kill e sigwait, but i don't know how
to!
Can you help me please??

(and if is possible can you say me how create a sixth thread that starts
ever N second after the starting of the program?!?)

:) I hope you can decode my english and help me! thank u!

void *reader1(void *id_lettore1)
{
do{
....
}
while(1);
}

void *reader2(void *id_lettore2)
{
do{
....
}
while (1);
}

void *reader3(void *id_lettore3)
{
do{
....
}
while (1);
}

void *writer1(void *id_scrittore1)
{
do{
....
}
while (1);
}

void *writer2(void *id_scrittore2)
{
do{
....
}
while (1);
}

int main(int argc, char *argv[])
{
pthread_setconcurrency(5);

....

if (pthread_create(&ts1, NULL,writer1, (void*)1) != 0){
printf("pthread_create fallita!\n");
exit(0);
}

if (pthread_create(&ts2, NULL,writer2, (void*)2) != 0){
printf("pthread_create fallita!\n");
exit(0);
}

if (pthread_create(&tl1, NULL,reader1, (void*)1) != 0){
printf("pthread_create fallita!\n");
exit(0);
}

if (pthread_create(&tl2, NULL,reader2, (void*)2) != 0){
printf("pthread_create fallita!\n");
exit(0);
}

if (pthread_create(&tl3, NULL,reader3, (void*)3) != 0){
printf("pthread_create fallita!\n");
exit(0);
}

pthread_exit(NULL);
return 0;
}

.