first commit

CS4210/Readings/CVS/Entries

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+/ProducerConsumer.c/1.1/Fri Feb 24 00:34:28 2006//
+/Psyche.pdf/1.1/Fri Feb 24 00:35:15 2006/-kb/
+/SRC-035.pdf/1.1/Fri Feb 24 00:34:20 2006/-kb/
+/ThreadsSquare.c/1.1/Fri Feb 24 00:34:25 2006//
+/anderson-spinlock.pdf/1.1/Fri Feb 24 00:35:19 2006/-kb/
+/eykholt.ps/1.1/Fri Feb 24 00:34:41 2006//
+/fedorova_CMT.pdf/1.1/Fri Feb 24 00:34:31 2006/-kb/
+/ousterhout-threads.ppt/1.1/Fri Feb 24 00:35:32 2006/-kb/
+/p175-bershad.pdf/1.1/Fri Feb 24 00:35:42 2006/-kb/
+/p24-bloom.pdf/1.1/Fri Feb 24 00:34:34 2006/-kb/
+/pai99flash.pdf/1.1/Fri Feb 24 00:35:23 2006/-kb/
+/pres.pdf/1.1/Fri Feb 24 00:35:27 2006/-kb/
+/rpc-birrell84.pdf/1.1/Fri Feb 24 00:35:45 2006/-kb/
+/smli_tr-94-29.pdf/1.1/Fri Feb 24 00:35:49 2006/-kb/
+/sprite-caching.ps/1.1/Fri Feb 24 01:46:42 2006//
+/stein92implementing.pdf/1.1/Fri Feb 24 00:35:11 2006/-kb/
+/threads-hotos-2003.pdf/1.1/Fri Feb 24 00:35:39 2006/-kb/
+/wollrath.pdf/1.1/Fri Feb 24 00:35:51 2006/-kb/
+/DSM_protic.pdf/1.1/Tue Apr 25 21:59:37 2006/-kb/
+D

CS4210/Readings/CVS/Entries.Extra

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+/ProducerConsumer.c////*///
+/Psyche.pdf////*///
+/SRC-035.pdf////*///
+/ThreadsSquare.c////*///
+/anderson-spinlock.pdf////*///
+/eykholt.ps////*///
+/fedorova_CMT.pdf////*///
+/ousterhout-threads.ppt////*///
+/p175-bershad.pdf////*///
+/p24-bloom.pdf////*///
+/pai99flash.pdf////*///
+/pres.pdf////*///
+/rpc-birrell84.pdf////*///
+/smli_tr-94-29.pdf////*///
+/sprite-caching.ps////*///
+/stein92implementing.pdf////*///
+/threads-hotos-2003.pdf////*///
+/wollrath.pdf////*///
+/DSM_protic.pdf////*///

CS4210/Readings/CVS/Entries.Extra.Old

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+/ProducerConsumer.c////*///
+/Psyche.pdf////*///
+/SRC-035.pdf////*///
+/ThreadsSquare.c////*///
+/anderson-spinlock.pdf////*///
+/eykholt.ps////*///
+/fedorova_CMT.pdf////*///
+/ousterhout-threads.ppt////*///
+/p175-bershad.pdf////*///
+/p24-bloom.pdf////*///
+/pai99flash.pdf////*///
+/pres.pdf////*///
+/rpc-birrell84.pdf////*///
+/smli_tr-94-29.pdf////*///
+/sprite-caching.ps////*///
+/stein92implementing.pdf////*///
+/threads-hotos-2003.pdf////*///
+/wollrath.pdf////*///
+/DSM_protic.pdf////*///

CS4210/Readings/CVS/Entries.Old

@@ -0,0 +1,20 @@
+/ProducerConsumer.c/1.1/Fri Feb 24 00:34:28 2006//
+/Psyche.pdf/1.1/Fri Feb 24 00:35:15 2006/-kb/
+/SRC-035.pdf/1.1/Fri Feb 24 00:34:20 2006/-kb/
+/ThreadsSquare.c/1.1/Fri Feb 24 00:34:25 2006//
+/anderson-spinlock.pdf/1.1/Fri Feb 24 00:35:19 2006/-kb/
+/eykholt.ps/1.1/Fri Feb 24 00:34:41 2006//
+/fedorova_CMT.pdf/1.1/Fri Feb 24 00:34:31 2006/-kb/
+/ousterhout-threads.ppt/1.1/Fri Feb 24 00:35:32 2006/-kb/
+/p175-bershad.pdf/1.1/Fri Feb 24 00:35:42 2006/-kb/
+/p24-bloom.pdf/1.1/Fri Feb 24 00:34:34 2006/-kb/
+/pai99flash.pdf/1.1/Fri Feb 24 00:35:23 2006/-kb/
+/pres.pdf/1.1/Fri Feb 24 00:35:27 2006/-kb/
+/rpc-birrell84.pdf/1.1/Fri Feb 24 00:35:45 2006/-kb/
+/smli_tr-94-29.pdf/1.1/Fri Feb 24 00:35:49 2006/-kb/
+/sprite-caching.ps/1.1/Fri Feb 24 01:46:42 2006//
+/stein92implementing.pdf/1.1/Fri Feb 24 00:35:11 2006/-kb/
+/threads-hotos-2003.pdf/1.1/Fri Feb 24 00:35:39 2006/-kb/
+/wollrath.pdf/1.1/Fri Feb 24 00:35:51 2006/-kb/
+/DSM_protic.pdf/0/dummy timestamp/-kb/
+D

CS4210/Readings/CVS/Repository

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+CS4210/Readings

CS4210/Readings/CVS/Root

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+:ext:asskoala@192.168.0.3:/usr/_CVS

CS4210/Readings/ProducerConsumer.c

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+#include<pthread.h>
+#include <stdio.h>
+
+/* Producer/consumer program illustrating conditional variables */
+
+/* Size of shared buffer */
+#define BUF_SIZE 3
+
+int buffer[BUF_SIZE];							/* shared buffer */
+int add=0;										/* place to add next element */
+int rem=0;										/* place to remove next element */
+int num=0;										/* number elements in buffer */
+pthread_mutex_t m=PTHREAD_MUTEX_INITIALIZER;	/* mutex lock for buffer */
+pthread_cond_t c_cons=PTHREAD_COND_INITIALIZER; /* consumer waits on this cond var */
+pthread_cond_t c_prod=PTHREAD_COND_INITIALIZER; /* producer waits on this cond var */
+
+void *producer(void *param);
+void *consumer(void *param);
+
+main (int argc, char *argv[])
+{
+	pthread_t tid1, tid2;		/* thread identifiers */
+	int i;
+
+	/* create the threads; may be any number, in general */
+	if (pthread_create(&tid1,NULL,producer,NULL) != 0) {
+		fprintf (stderr, "Unable to create producer thread\n");
+		exit (1);
+	}
+	if (pthread_create(&tid2,NULL,consumer,NULL) != 0) {
+		fprintf (stderr, "Unable to create consumer thread\n");
+		exit (1);
+	}
+	/* wait for created thread to exit */
+	pthread_join(tid1,NULL);
+	pthread_join(tid2,NULL);
+	printf ("Parent quiting\n");
+}
+
+
+/* Produce value(s) */
+void *producer(void *param)
+{
+	int i;
+	for (i=1; i<=20; i++) {
+		/* Insert into buffer */
+		pthread_mutex_lock (&m);
+		if (num > BUF_SIZE) exit(1);	/* overflow */
+		while (num == BUF_SIZE)			/* block if buffer is full */
+			pthread_cond_wait (&c_prod, &m);
+		/* if executing here, buffer not full so add element */
+		buffer[add] = i;
+		add = (add+1) % BUF_SIZE;
+		num++;
+		pthread_mutex_unlock (&m);
+		pthread_cond_signal (&c_cons);
+		printf ("producer: inserted %d\n", i);  fflush (stdout);
+	}
+	printf ("producer quiting\n");  fflush (stdout);
+}
+
+/* Consume value(s); Note the consumer never terminates */
+void *consumer(void *param)
+{
+	int i;
+	while (1) {
+		pthread_mutex_lock (&m);
+		if (num < 0) exit(1);   /* underflow */
+		while (num == 0)		/* block if buffer empty */
+			pthread_cond_wait (&c_cons, &m);
+		/* if executing here, buffer not empty so remove element */
+		i = buffer[rem];
+		rem = (rem+1) % BUF_SIZE;
+		num--;
+		pthread_mutex_unlock (&m);
+		pthread_cond_signal (&c_prod);
+		printf ("Consume value %d\n", i);  fflush(stdout);
+	}
+}
+

CS4210/Readings/ThreadsSquare.c

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+#include<pthread.h>
+#include <stdio.h>
+
+/* Example program creating thread to compute square of value */
+
+int value;			/* thread stores result here */
+void *my_thread(void *param);	/* the thread */
+
+main (int argc, char *argv[])
+{
+	pthread_t tid;		/* thread identifier */
+	int retcode;
+
+	/* check input parameters */
+	if (argc != 2) {
+		fprintf (stderr, "usage: a.out <integer value>\n");
+		exit(0);
+	}
+
+	/* create the thread */
+	retcode = pthread_create(&tid,NULL,my_thread,argv[1]);
+	if (retcode != 0) {
+		fprintf (stderr, "Unable to create thread\n");
+		exit (1);
+	}
+
+	/* wait for created thread to exit */
+	pthread_join(tid,NULL);
+	printf ("I am the parent: Square = %d\n", value);
+}
+
+
+/* The thread will begin control in this function */
+void *my_thread(void *param)
+{
+	int i = atoi (param);
+
+	printf ("I am the child, passed value %d\n", i);
+	value = i * i;
+
+	/* next line is not really necessary */
+	pthread_exit(0);
+}
+