#include <inttypes.h>
#include <threads.h>
#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
#include <librace.h>
void threadB(struct mpmc_boundq_1_alt<int32_t, sizeof(int32_t)> *queue)
{
- int32_t *bin = queue->read_fetch();
- printf("Read: %d\n", load_32(bin));
- queue->read_consume();
+ int32_t *bin;
+ while ((bin = queue->read_fetch()) != NULL) {
+ printf("Read: %d\n", load_32(bin));
+ queue->read_consume();
+ }
+}
+
+void threadC(struct mpmc_boundq_1_alt<int32_t, sizeof(int32_t)> *queue)
+{
+ int32_t *bin = queue->write_prepare();
+ store_32(bin, 1);
+ queue->write_publish();
+
+ while ((bin = queue->read_fetch()) != NULL) {
+ printf("Read: %d\n", load_32(bin));
+ queue->read_consume();
+ }
+}
+
+#define MAXREADERS 3
+#define MAXWRITERS 3
+#define MAXRDWR 3
+
+#ifdef CONFIG_MPMC_READERS
+#define DEFAULT_READERS (CONFIG_MPMC_READERS)
+#else
+#define DEFAULT_READERS 2
+#endif
+
+#ifdef CONFIG_MPMC_WRITERS
+#define DEFAULT_WRITERS (CONFIG_MPMC_WRITERS)
+#else
+#define DEFAULT_WRITERS 2
+#endif
+
+#ifdef CONFIG_MPMC_RDWR
+#define DEFAULT_RDWR (CONFIG_MPMC_RDWR)
+#else
+#define DEFAULT_RDWR 0
+#endif
+
+int readers = DEFAULT_READERS, writers = DEFAULT_WRITERS, rdwr = DEFAULT_RDWR;
+
+void print_usage()
+{
+ printf("Error: use the following options\n"
+ " -r <num> Choose number of reader threads\n"
+ " -w <num> Choose number of writer threads\n");
+ exit(EXIT_FAILURE);
+}
+
+void process_params(int argc, char **argv)
+{
+ const char *shortopts = "hr:w:";
+ int opt;
+ bool error = false;
+
+ while (!error && (opt = getopt(argc, argv, shortopts)) != -1) {
+ switch (opt) {
+ case 'h':
+ print_usage();
+ break;
+ case 'r':
+ readers = atoi(optarg);
+ break;
+ case 'w':
+ writers = atoi(optarg);
+ break;
+ default: /* '?' */
+ error = true;
+ break;
+ }
+ }
+
+ if (writers < 1 || writers > MAXWRITERS)
+ error = true;
+ if (readers < 1 || readers > MAXREADERS)
+ error = true;
+
+ if (error)
+ print_usage();
}
int user_main(int argc, char **argv)
{
struct mpmc_boundq_1_alt<int32_t, sizeof(int32_t)> queue;
- thrd_t A, B;
+ thrd_t A[MAXWRITERS], B[MAXREADERS], C[MAXRDWR];
+ /* Note: optarg() / optind is broken in model-checker - workaround is
+ * to just copy&paste this test a few times */
+ //process_params(argc, argv);
+ printf("%d reader(s), %d writer(s)\n", readers, writers);
+
+#ifndef CONFIG_MPMC_NO_INITIAL_ELEMENT
+ printf("Adding initial element\n");
int32_t *bin = queue.write_prepare();
store_32(bin, 17);
queue.write_publish();
+#endif
printf("Start threads\n");
- thrd_create(&A, (thrd_start_t)&threadA, &queue);
- thrd_create(&B, (thrd_start_t)&threadB, &queue);
- thrd_join(A);
- thrd_join(B);
+ for (int i = 0; i < writers; i++)
+ thrd_create(&A[i], (thrd_start_t)&threadA, &queue);
+ for (int i = 0; i < readers; i++)
+ thrd_create(&B[i], (thrd_start_t)&threadB, &queue);
+
+ for (int i = 0; i < rdwr; i++)
+ thrd_create(&C[i], (thrd_start_t)&threadC, &queue);
+
+ for (int i = 0; i < writers; i++)
+ thrd_join(A[i]);
+ for (int i = 0; i < readers; i++)
+ thrd_join(B[i]);
+ for (int i = 0; i < rdwr; i++)
+ thrd_join(C[i]);
printf("Threads complete\n");