| 1 | /* |
| 2 | * Copyright (C) 2018 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-only |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <common/fd-tracker/utils.h> |
| 9 | #include <common/utils.h> |
| 10 | #include <stdio.h> |
| 11 | #include <stdlib.h> |
| 12 | #include <unistd.h> |
| 13 | |
| 14 | static int open_pipe_cloexec(void *data, int *fds) |
| 15 | { |
| 16 | return utils_create_pipe_cloexec(fds); |
| 17 | } |
| 18 | |
| 19 | static int close_pipe(void *data, int *pipe) |
| 20 | { |
| 21 | utils_close_pipe(pipe); |
| 22 | pipe[0] = pipe[1] = -1; |
| 23 | return 0; |
| 24 | } |
| 25 | |
| 26 | int fd_tracker_util_close_fd(void *unused, int *fd) |
| 27 | { |
| 28 | return close(*fd); |
| 29 | } |
| 30 | |
| 31 | int fd_tracker_util_pipe_open_cloexec( |
| 32 | struct fd_tracker *tracker, const char *name, int *pipe) |
| 33 | { |
| 34 | int ret; |
| 35 | const char *name_prefix; |
| 36 | char *names[2]; |
| 37 | |
| 38 | name_prefix = name ? name : "Unknown pipe"; |
| 39 | ret = asprintf(&names[0], "%s (read end)", name_prefix); |
| 40 | if (ret < 0) { |
| 41 | goto end; |
| 42 | } |
| 43 | ret = asprintf(&names[1], "%s (write end)", name_prefix); |
| 44 | if (ret < 0) { |
| 45 | goto end; |
| 46 | } |
| 47 | |
| 48 | ret = fd_tracker_open_unsuspendable_fd(tracker, pipe, |
| 49 | (const char **) names, 2, open_pipe_cloexec, NULL); |
| 50 | free(names[0]); |
| 51 | free(names[1]); |
| 52 | end: |
| 53 | return ret; |
| 54 | } |
| 55 | |
| 56 | int fd_tracker_util_pipe_close(struct fd_tracker *tracker, int *pipe) |
| 57 | { |
| 58 | return fd_tracker_close_unsuspendable_fd( |
| 59 | tracker, pipe, 2, close_pipe, NULL); |
| 60 | } |