#include <limits.h>
#include <pthread.h>
#include <sys/mman.h>
-#include <time.h>
+#include <common/compat/time.h>
#define BUF_SIZE 256
#define NB_FD 1
#define MSEC_PER_NSEC (MSEC_PER_USEC * 1000)
static int timeout; /* seconds, -1 to disable */
-volatile static int stop_thread;
+static volatile int stop_thread;
static int wait_fd;
struct ppoll_thread_data {
}
/*
- * Select is limited to 1024 FDs, should output a pselect event
- * with 0 FDs.
+ * Pass an invalid file descriptor to pselect6(). The syscall should return
+ * -EBADF. The recorded event should contain a "ret = -EBADF (-9)".
*/
-void pselect_fd_too_big(void)
+void pselect_invalid_fd(void)
{
- long rfds[2048 / (sizeof(long) * CHAR_BIT)];
+ fd_set rfds;
int ret;
- int fd2;
+ int fd;
char buf[BUF_SIZE];
/*
- * Test if nfds > 1024.
- * Make sure ulimit is set correctly (ulimit -n 2048).
+ * Open a file, close it and use the closed FD in the pselect6 call.
*/
- fd2 = dup2(wait_fd, 2047);
- if (fd2 != 2047) {
- perror("dup2");
- return;
+
+ fd = open("/dev/null", O_RDONLY);
+ if (fd == -1) {
+ perror("open");
+ goto error;
}
- FD_ZERO((fd_set *) &rfds);
- FD_SET(fd2, (fd_set *) &rfds);
- ret = syscall(SYS_pselect6, fd2 + 1, &rfds, NULL, NULL, NULL, NULL);
+ ret = close(fd);
+ if (ret == -1) {
+ perror("close");
+ goto error;
+ }
+
+ FD_ZERO(&rfds);
+ FD_SET(fd, &rfds);
+
+ ret = syscall(SYS_pselect6, fd + 1, &rfds, NULL, NULL, NULL, NULL);
if (ret == -1) {
perror("# pselect()");
} else if (ret) {
} else {
printf("# [pselect] timeout\n");
}
-
+error:
+ return;
}
/*
struct epoll_event *epoll_event;
pthread_t writer;
+ for (i = 0; i < MAX_FDS; i++) {
+ fds[i] = -1;
+ }
epollfd = epoll_create(MAX_FDS);
if (epollfd < 0) {
perror("[eppoll] create");
"and epoll, waiting for input\n");
fprintf(stderr, "\t2: Timeout cases (1ms) for select, pselect6, poll, "
"ppoll and epoll\n");
- fprintf(stderr, "\t3: pselect with a FD > 1023\n");
+ fprintf(stderr, "\t3: pselect with an invalid fd\n");
fprintf(stderr, "\t4: ppoll with %d FDs\n", MAX_FDS);
fprintf(stderr, "\t5: ppoll buffer overflow, should segfault, waits "
"for input\n");
- fprintf(stderr, "\t6: pselect with invalid pointer, waits for "
+ fprintf(stderr, "\t6: pselect with an invalid pointer, waits for "
"input\n");
fprintf(stderr, "\t7: ppoll with ulong_max fds, waits for input\n");
- fprintf(stderr, "\t8: epoll_pwait with invalid pointer, waits for "
+ fprintf(stderr, "\t8: epoll_pwait with an invalid pointer, waits for "
"input\n");
fprintf(stderr, "\t9: epoll_pwait with maxevents set to INT_MAX, "
"waits for input\n");
run_working_cases();
break;
case 3:
- pselect_fd_too_big();
+ pselect_invalid_fd();
break;
case 4:
test_ppoll_big();