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#include "util/evlist.h"
#include "util/debug.h"
#include "tests/tests.h"
static void perf_evlist__init_pollfd(struct perf_evlist *evlist,
int nr_fds_alloc, short revents)
{
int fd;
evlist->nr_fds = nr_fds_alloc;
for (fd = 0; fd < nr_fds_alloc; ++fd) {
evlist->pollfd[fd].fd = nr_fds_alloc - fd;
evlist->pollfd[fd].revents = revents;
}
}
static int perf_evlist__fprintf_pollfd(struct perf_evlist *evlist,
const char *prefix, FILE *fp)
{
int printed = 0, fd;
if (!verbose)
return 0;
printed += fprintf(fp, "\n%s: %3d [ ", prefix, evlist->nr_fds);
for (fd = 0; fd < evlist->nr_fds; ++fd)
printed += fprintf(fp, "%s%d", fd ? ", " : "", evlist->pollfd[fd].fd);
printed += fprintf(fp, " ]");
return printed;
}
int test__perf_evlist__filter_pollfd(void)
{
const int nr_fds_alloc = 5;
int nr_fds, expected_fd[2], fd;
struct pollfd pollfd[nr_fds_alloc];
struct perf_evlist evlist_alloc = {
.pollfd = pollfd,
}, *evlist = &evlist_alloc;
perf_evlist__init_pollfd(evlist, nr_fds_alloc, POLLIN);
nr_fds = perf_evlist__filter_pollfd(evlist, POLLHUP);
if (nr_fds != nr_fds_alloc) {
pr_debug("\nperf_evlist__filter_pollfd()=%d != %d shouldn't have filtered anything",
nr_fds, nr_fds_alloc);
return TEST_FAIL;
}
perf_evlist__init_pollfd(evlist, nr_fds_alloc, POLLHUP);
nr_fds = perf_evlist__filter_pollfd(evlist, POLLHUP);
if (nr_fds != 0) {
pr_debug("\nperf_evlist__filter_pollfd()=%d != %d, should have filtered all fds",
nr_fds, nr_fds_alloc);
return TEST_FAIL;
}
perf_evlist__init_pollfd(evlist, nr_fds_alloc, POLLHUP);
pollfd[2].revents = POLLIN;
expected_fd[0] = pollfd[2].fd;
pr_debug("\nfiltering all but pollfd[2]:");
perf_evlist__fprintf_pollfd(evlist, "before", stderr);
nr_fds = perf_evlist__filter_pollfd(evlist, POLLHUP);
perf_evlist__fprintf_pollfd(evlist, " after", stderr);
if (nr_fds != 1) {
pr_debug("\nperf_evlist__filter_pollfd()=%d != 1, should have left just one event",
nr_fds);
return TEST_FAIL;
}
if (pollfd[0].fd != expected_fd[0]) {
pr_debug("\npollfd[0].fd=%d != %d\n", pollfd[0].fd, expected_fd[0]);
return TEST_FAIL;
}
perf_evlist__init_pollfd(evlist, nr_fds_alloc, POLLHUP);
pollfd[0].revents = POLLIN;
expected_fd[0] = pollfd[0].fd;
pollfd[3].revents = POLLIN;
expected_fd[1] = pollfd[3].fd;
pr_debug("\nfiltering all but (pollfd[0], pollfd[3]):");
perf_evlist__fprintf_pollfd(evlist, "before", stderr);
nr_fds = perf_evlist__filter_pollfd(evlist, POLLHUP);
perf_evlist__fprintf_pollfd(evlist, " after", stderr);
if (nr_fds != 2) {
pr_debug("\nperf_evlist__filter_pollfd()=%d != 2, should have left just two events",
nr_fds);
return TEST_FAIL;
}
for (fd = 0; fd < 2; ++fd) {
if (pollfd[fd].fd != expected_fd[fd]) {
pr_debug("\npollfd[%d].fd=%d != %d\n", fd, pollfd[fd].fd, expected_fd[fd]);
return TEST_FAIL;
}
}
pr_debug("\n");
return 0;
}
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