test/file-update: register files in multiple rings

Signed-off-by: Jens Axboe <axboe@kernel.dk>

2 files changed, 133 insertions, 2 deletions

diff --git a/test/Makefile b/test/Makefile
index f93761e..b6e8d0b 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -17,7 +17,8 @@ all_targets += poll poll-cancel ring-leak fsync io_uring_setup io_uring_register
 		link-timeout cq-overflow link_drain fc2a85cb02ef-test \
 		poll-link accept-link fixed-link poll-cancel-ton teardowns \
 		poll-many b5837bd5311d-test accept-test d77a67ed5f27-test \
-		connect 7ad0e4b2f83c-test submit-reuse fallocate open-close
+		connect 7ad0e4b2f83c-test submit-reuse fallocate open-close \
+		file-update
 
 include ../Makefile.quiet
 
@@ -37,7 +38,8 @@ test_srcs := poll.c poll-cancel.c ring-leak.c fsync.c io_uring_setup.c \
 	cq-overflow.c link_drain.c fc2a85cb02ef-test.c poll-link.c \
 	accept-link.c fixed-link.c poll-cancel-ton.c teardowns.c poll-many.c \
 	b5837bd5311d-test.c accept-test.c d77a67ed5f27-test.c connect.c \
-	7ad0e4b2f83c-test.c submit-reuse.c fallocate.c open-close.c
+	7ad0e4b2f83c-test.c submit-reuse.c fallocate.c open-close.c \
+	file-update.c
 
 test_objs := $(patsubst %.c,%.ol,$(test_srcs))
 
diff --git a/test/file-update.c b/test/file-update.c
new file mode 100644
index 0000000..c3b91ac
--- /dev/null
+++ b/test/file-update.c
@@ -0,0 +1,129 @@
+/*
+ * Description: run various file registration tests
+ *
+ */
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "liburing.h"
+
+static void close_files(int *files, int nr_files, int add)
+{
+	char fname[32];
+	int i;
+
+	for (i = 0; i < nr_files; i++) {
+		if (files)
+			close(files[i]);
+		if (!add)
+			sprintf(fname, ".reg.%d", i);
+		else
+			sprintf(fname, ".add.%d", i + add);
+		unlink(fname);
+	}
+	if (files)
+		free(files);
+}
+
+static int *open_files(int nr_files, int extra, int add)
+{
+	char fname[32];
+	int *files;
+	int i;
+
+	files = calloc(nr_files + extra, sizeof(int));
+
+	for (i = 0; i < nr_files; i++) {
+		if (!add)
+			sprintf(fname, ".reg.%d", i);
+		else
+			sprintf(fname, ".add.%d", i + add);
+		files[i] = open(fname, O_RDWR | O_CREAT, 0644);
+		if (files[i] < 0) {
+			perror("open");
+			free(files);
+			files = NULL;
+			break;
+		}
+	}
+	if (extra) {
+		for (i = nr_files; i < nr_files + extra; i++)
+			files[i] = -1;
+	}
+
+	return files;
+}
+
+static int test_update_multiring(struct io_uring *r1, struct io_uring *r2,
+				 struct io_uring *r3, int do_unreg)
+{
+	int *fds, *newfds;
+
+	fds = open_files(10, 0, 0);
+	newfds = open_files(10, 0, 1);
+
+	if (io_uring_register_files(r1, fds, 10) ||
+	    io_uring_register_files(r2, fds, 10) ||
+	    io_uring_register_files(r3, fds, 10)) {
+		fprintf(stderr, "%s: register files failed\n", __FUNCTION__);
+		goto err;
+	}
+
+	if (io_uring_register_files_update(r1, 0, newfds, 10) != 10 ||
+	    io_uring_register_files_update(r2, 0, newfds, 10) != 10 ||
+	    io_uring_register_files_update(r3, 0, newfds, 10) != 10) {
+		fprintf(stderr, "%s: update files failed\n", __FUNCTION__);
+		goto err;
+	}
+
+	if (!do_unreg)
+		goto done;
+
+	if (io_uring_unregister_files(r1) ||
+	    io_uring_unregister_files(r2) ||
+	    io_uring_unregister_files(r3)) {
+		fprintf(stderr, "%s: unregister files failed\n", __FUNCTION__);
+		goto err;
+	}
+
+done:
+	close_files(fds, 10, 0);
+	close_files(newfds, 10, 1);
+	return 0;
+err:
+	close_files(fds, 10, 0);
+	close_files(newfds, 10, 1);
+	return 1;
+}
+
+int main(int argc, char *argv[])
+{
+	struct io_uring r1, r2, r3;
+	int ret;
+
+	if (io_uring_queue_init(8, &r1, 0) ||
+	    io_uring_queue_init(8, &r2, 0) ||
+	    io_uring_queue_init(8, &r3, 0)) {
+		fprintf(stderr, "ring setup failed\n");
+		return 1;
+	}
+
+	ret = test_update_multiring(&r1, &r2, &r3, 1);
+	if (ret) {
+		fprintf(stderr, "test_update_multiring w/unreg\n");
+		return ret;
+	}
+
+	ret = test_update_multiring(&r1, &r2, &r3, 0);
+	if (ret) {
+		fprintf(stderr, "test_update_multiring wo/unreg\n");
+		return ret;
+	}
+
+
+	return 0;
+}