test: Add test-pipe-async test

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

test/Makefile

@@ -2,6 +2,7 @@ SRCS	+= test-counter.c
 SRCS	+= test-rnd-from-file.c
 SRCS	+= test-shmem-async.c
 SRCS	+= test-shmem-three-async.c
+SRCS	+= test-pipe-async.c
 
 OBJS	:= $(patsubst %.c,%.o,$(SRCS))
 PROGS	:= $(patsubst %.c,%,$(SRCS))

test/test-pipe-async.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <string.h>
+
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+
+#include <sched.h>
+
+static void *map;
+
+int main(int argc, char *argv[])
+{
+	int pipefd[2];
+	pid_t pid;
+
+	printf("%s pid %d\n", argv[0], getpid());
+
+	if (pipe(pipefd)) {
+		perror("Can't create pipe");
+		return -1;
+	}
+
+	pid = fork();
+	if (pid == -1) {
+		printf("fork failed\n");
+		return 1;
+	} else if (pid == 0) {
+		long buf;
+		while (read(pipefd[0], &buf, sizeof(buf)) > 0) {
+			printf("pipe-r: %08lx\n", buf);
+			sleep(2);
+		}
+	} else {
+		long buf = 0;
+		while (1) {
+			printf("pipe-w: %08lx\n", buf);
+			write(pipefd[1], &buf, sizeof(buf));
+			sleep(1);
+			buf++;
+		}
+	}
+
+	return 0;
+}