// SPDX-License-Identifier: GPL-2.0
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#include <api/fd/array.h>
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#include <poll.h>
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#include "util/debug.h"
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#include "tests/tests.h"
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static void fdarray__init_revents(struct fdarray *fda, short revents)
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{
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int fd;
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fda->nr = fda->nr_alloc;
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for (fd = 0; fd < fda->nr; ++fd) {
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fda->entries[fd].fd = fda->nr - fd;
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fda->entries[fd].revents = revents;
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}
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}
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static int fdarray__fprintf_prefix(struct fdarray *fda, const char *prefix, FILE *fp)
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{
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int printed = 0;
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if (verbose <= 0)
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return 0;
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printed += fprintf(fp, "\n%s: ", prefix);
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return printed + fdarray__fprintf(fda, fp);
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}
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int test__fdarray__filter(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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int nr_fds, expected_fd[2], fd, err = TEST_FAIL;
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struct fdarray *fda = fdarray__new(5, 5);
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if (fda == NULL) {
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pr_debug("\nfdarray__new() failed!");
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goto out;
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}
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fdarray__init_revents(fda, POLLIN);
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nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
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if (nr_fds != fda->nr_alloc) {
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pr_debug("\nfdarray__filter()=%d != %d shouldn't have filtered anything",
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nr_fds, fda->nr_alloc);
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goto out_delete;
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}
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fdarray__init_revents(fda, POLLHUP);
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nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
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if (nr_fds != 0) {
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pr_debug("\nfdarray__filter()=%d != %d, should have filtered all fds",
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nr_fds, fda->nr_alloc);
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goto out_delete;
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}
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fdarray__init_revents(fda, POLLHUP);
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fda->entries[2].revents = POLLIN;
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expected_fd[0] = fda->entries[2].fd;
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pr_debug("\nfiltering all but fda->entries[2]:");
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fdarray__fprintf_prefix(fda, "before", stderr);
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nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
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fdarray__fprintf_prefix(fda, " after", stderr);
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if (nr_fds != 1) {
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pr_debug("\nfdarray__filter()=%d != 1, should have left just one event", nr_fds);
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goto out_delete;
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}
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if (fda->entries[0].fd != expected_fd[0]) {
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pr_debug("\nfda->entries[0].fd=%d != %d\n",
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fda->entries[0].fd, expected_fd[0]);
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goto out_delete;
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}
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fdarray__init_revents(fda, POLLHUP);
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fda->entries[0].revents = POLLIN;
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expected_fd[0] = fda->entries[0].fd;
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fda->entries[3].revents = POLLIN;
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expected_fd[1] = fda->entries[3].fd;
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pr_debug("\nfiltering all but (fda->entries[0], fda->entries[3]):");
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fdarray__fprintf_prefix(fda, "before", stderr);
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nr_fds = fdarray__filter(fda, POLLHUP, NULL, NULL);
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fdarray__fprintf_prefix(fda, " after", stderr);
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if (nr_fds != 2) {
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pr_debug("\nfdarray__filter()=%d != 2, should have left just two events",
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nr_fds);
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goto out_delete;
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}
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for (fd = 0; fd < 2; ++fd) {
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if (fda->entries[fd].fd != expected_fd[fd]) {
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pr_debug("\nfda->entries[%d].fd=%d != %d\n", fd,
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fda->entries[fd].fd, expected_fd[fd]);
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goto out_delete;
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}
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}
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pr_debug("\n");
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err = 0;
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out_delete:
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fdarray__delete(fda);
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out:
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return err;
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}
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int test__fdarray__add(struct test *test __maybe_unused, int subtest __maybe_unused)
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{
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int err = TEST_FAIL;
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struct fdarray *fda = fdarray__new(2, 2);
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if (fda == NULL) {
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pr_debug("\nfdarray__new() failed!");
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goto out;
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}
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#define FDA_CHECK(_idx, _fd, _revents) \
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if (fda->entries[_idx].fd != _fd) { \
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pr_debug("\n%d: fda->entries[%d](%d) != %d!", \
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__LINE__, _idx, fda->entries[1].fd, _fd); \
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goto out_delete; \
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} \
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if (fda->entries[_idx].events != (_revents)) { \
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pr_debug("\n%d: fda->entries[%d].revents(%d) != %d!", \
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__LINE__, _idx, fda->entries[_idx].fd, _revents); \
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goto out_delete; \
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}
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#define FDA_ADD(_idx, _fd, _revents, _nr) \
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if (fdarray__add(fda, _fd, _revents) < 0) { \
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pr_debug("\n%d: fdarray__add(fda, %d, %d) failed!", \
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__LINE__,_fd, _revents); \
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goto out_delete; \
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} \
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if (fda->nr != _nr) { \
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pr_debug("\n%d: fdarray__add(fda, %d, %d)=%d != %d", \
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__LINE__,_fd, _revents, fda->nr, _nr); \
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goto out_delete; \
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} \
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FDA_CHECK(_idx, _fd, _revents)
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FDA_ADD(0, 1, POLLIN, 1);
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FDA_ADD(1, 2, POLLERR, 2);
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fdarray__fprintf_prefix(fda, "before growing array", stderr);
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FDA_ADD(2, 35, POLLHUP, 3);
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if (fda->entries == NULL) {
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pr_debug("\nfdarray__add(fda, 35, POLLHUP) should have allocated fda->pollfd!");
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goto out_delete;
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}
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fdarray__fprintf_prefix(fda, "after 3rd add", stderr);
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FDA_ADD(3, 88, POLLIN | POLLOUT, 4);
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fdarray__fprintf_prefix(fda, "after 4th add", stderr);
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FDA_CHECK(0, 1, POLLIN);
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FDA_CHECK(1, 2, POLLERR);
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FDA_CHECK(2, 35, POLLHUP);
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FDA_CHECK(3, 88, POLLIN | POLLOUT);
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#undef FDA_ADD
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#undef FDA_CHECK
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pr_debug("\n");
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err = 0;
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out_delete:
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fdarray__delete(fda);
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out:
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return err;
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}
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