Added a small test program for the transfer_area() call.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11088 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/kernel/core/Jamfile

@@ -1,5 +1,11 @@
 SubDir OBOS_TOP src tests kernel core ;
 
+UsePrivateHeaders kernel ;
+
+SimpleTest transfer_area_test :
+	transfer_area_test.cpp
+	: libroot.so ;
+
 SubInclude OBOS_TOP src tests kernel core cache ;
 #SubInclude OBOS_TOP src tests kernel core disk_device_manager ;
 SubInclude OBOS_TOP src tests kernel core util ;

src/tests/kernel/core/transfer_area_test.cpp

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2005, Axel Dörfler, axeld@pinc-software.de.
+ * Distributed under the terms of the MIT License.
+ */
+
+
+#include <OS.h>
+#include <syscalls.h>
+
+#include <stdio.h>
+#include <string.h>
+
+
+static const char *kPortName = "transfer area test";
+
+
+int
+main(int argc, char **argv)
+{
+	port_id port;
+	area_id area;
+
+	if (argc > 1) {
+		// we're the sender
+		port = find_port(kPortName);
+		if (port < B_OK) {
+			fprintf(stderr, "Area receiver is not yet running.\n");
+			return -1;
+		}
+
+		port_info info;
+		get_port_info(port, &info);
+		
+		char *address;
+		area = create_area("test transfer area", (void **)&address, B_ANY_ADDRESS, B_PAGE_SIZE,
+			B_NO_LOCK, B_READ_AREA | B_WRITE_AREA);
+		if (area < B_OK) {
+			fprintf(stderr, "Could not create area: %s.\n", strerror(area));
+			return -1;
+		}
+
+		sprintf(address, "Oh my god - it's working! (%s)", argv[1]);
+
+		status_t status = _kern_transfer_area(area, (void **)&address, B_ANY_ADDRESS, info.team);
+		if (status < B_OK) {
+			fprintf(stderr, "Could not transfer area: %s.\n", strerror(status));
+			return -1;
+		}
+
+		write_port(port, area, NULL, 0);
+	} else {
+		// we're the receiver
+		port = create_port(1, kPortName);
+		if (port < B_OK) {
+			fprintf(stderr, "Could not create port: %s.\n", strerror(area));
+			return -1;
+		}
+
+		puts("Waiting for an area to be received (start same command again with an argument)...");
+
+		ssize_t size;
+		if ((size = read_port(port, (int32 *)&area, NULL, 0)) < B_OK) {
+			fprintf(stderr, "Reading from port failed: %s.\n", strerror(size));
+			return -1;
+		}
+
+		printf("Received Area %ld\n", area);
+
+		area_info info;
+		get_area_info(area, &info);
+		printf("  name = \"%s\", base = %p, size = %#lx, team = %ld\n",
+			info.name, info.address, info.size, info.team);
+		printf("  contents: %s\n", (char *)info.address);
+
+		delete_area(area);
+	}
+
+	return 0;
+}