Threads

threads-1.c

@@ -0,0 +1,32 @@
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define NUM_THREADS 4
+
+// compile command 
+// gcc -pthread threads-1.c -o threads-1.out
+
+void *PrintHello(void *threadid){
+	long tid;
+	tid = (long) threadid;
+	printf("Thread #  %ld\n", tid);
+	pthread_exit(NULL);
+}
+
+int main(int argc, char *argv[]){
+	pthread_t threads[NUM_THREADS];
+	int rc;
+	long t;
+	for(t = 0; t < NUM_THREADS;  t++){
+		printf("In main : creating thread no %ld\n",t);
+		rc = pthread_create(&threads[t],NULL,PrintHello, (void *)t);
+		if(rc){
+			printf("Error in making thread %d\n",rc);
+			exit(1);
+		}
+		pthread_join(threads[t],NULL); // Required to maintain async execution
+	}
+	pthread_exit(NULL);
+	return 0;
+}