kernel/tools/perf/tests/fdarray.c


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141<#include <api/fd/array.h>
#include "util/debug.h"
#include "tests/tests.h"

static void fdarray__init_revents(struct fdarray *fda, short revents)
{
	int fd;

	fda->nr = fda->nr_alloc;

	for (fd = 0; fd < fda->nr; ++fd) {
		fda->entries[fd].fd	 = fda->nr - fd;
		fda->entries[fd].revents = revents;
	}
}

static int fdarray__fprintf_prefix(struct fdarray *fda, const char *prefix, FILE *fp)
{
	int printed = 0;

	if (!verbose)
		return 0;

	printed += fprintf(fp, "\n%s: ", prefix);
	return printed + fdarray__fprintf(fda, fp);
}

int test__fdarray__filter(void)
{
	int nr_fds, expected_fd[2], fd, err = TEST_FAIL;
	struct fdarray *fda = fdarray__new(5, 5);

	if (fda == NULL) {
		pr_debug("\nfdarray__new() failed!");
		goto out;
	}

	fdarray__init_revents(fda, POLLIN);
	nr_fds = fdarray__filter(fda, POLLHUP, NULL);
	if (nr_fds != fda->nr_alloc)