rusage: Refactor test programs

Change-Id: I846a6416acf903f7fa19db98d4d937c51c10b4af

test/rusage/012_mck.c

@@ -0,0 +1,78 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <xpmem.h>
+#include "util.h"
+
+#define DEBUG
+
+int sz_mem[] = {
+	4 * (1ULL<<10),
+	2 * (1ULL<<20),
+	1 * (1ULL<<30),
+	134217728};
+
+#define SZ_INDEX 0
+
+int main(int argc, char **argv)
+{
+	void *mem;
+	int ret = 0;
+	pid_t pid;
+	int status;
+	xpmem_segid_t segid;
+
+	mem = mmap(0, sz_mem[SZ_INDEX], PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	CHKANDJUMP(mem == MAP_FAILED, 255, "mmap failed\n");
+	memset(mem, 0, sz_mem[SZ_INDEX]);
+
+	segid = xpmem_make(mem, sz_mem[SZ_INDEX], XPMEM_PERMIT_MODE,
+			   (void *)0666);
+	CHKANDJUMP(segid == -1, 255, "xpmem_ioctl failed: %s\n",
+		   strerror(errno));
+
+	pid = fork();
+	CHKANDJUMP(pid == -1, 255, "fork failed\n");
+	if (pid == 0) {
+		xpmem_apid_t apid = xpmem_get(segid, XPMEM_RDWR,
+					      XPMEM_PERMIT_MODE, NULL);
+
+		CHKANDJUMP(apid == -1, 255, "xpmem_get failed: %s\n",
+			   strerror(errno));
+
+		struct xpmem_addr addr = { .apid = apid, .offset = 0 };
+		void *attach = xpmem_attach(addr, sz_mem[SZ_INDEX], NULL);
+
+		CHKANDJUMP(attach == (void *)-1, 255,
+			   "xpmem_attach failed: %s\n", strerror(errno));
+
+		*((unsigned long *)attach) = 0x1234;
+
+		ret = xpmem_detach(attach);
+		CHKANDJUMP(ret == -1, 255, "xpmem_detach failed\n");
+
+		_exit(123);
+	} else {
+		ret = waitpid(pid, &status, 0);
+		CHKANDJUMP(ret == -1, 255, "waitpid failed\n");
+
+		printf("%lx\n", *((unsigned long *)mem));
+
+		ret = xpmem_remove(segid);
+		CHKANDJUMP(ret == -1, 255, "xpmem_remove failed\n");
+	}
+
+ fn_exit:
+	return ret;
+ fn_fail:
+	goto fn_exit;
+}