/src/libusb/libusb/os/events_posix.h
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1 | | /* |
2 | | * libusb event abstraction on POSIX platforms |
3 | | * |
4 | | * Copyright © 2020 Chris Dickens <christopher.a.dickens@gmail.com> |
5 | | * |
6 | | * This library is free software; you can redistribute it and/or |
7 | | * modify it under the terms of the GNU Lesser General Public |
8 | | * License as published by the Free Software Foundation; either |
9 | | * version 2.1 of the License, or (at your option) any later version. |
10 | | * |
11 | | * This library is distributed in the hope that it will be useful, |
12 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | | * Lesser General Public License for more details. |
15 | | * |
16 | | * You should have received a copy of the GNU Lesser General Public |
17 | | * License along with this library; if not, write to the Free Software |
18 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | | */ |
20 | | |
21 | | #ifndef LIBUSB_EVENTS_POSIX_H |
22 | | #define LIBUSB_EVENTS_POSIX_H |
23 | | |
24 | | #include <poll.h> |
25 | | |
26 | | typedef int usbi_os_handle_t; |
27 | | #define USBI_OS_HANDLE_FORMAT_STRING "fd %d" |
28 | | |
29 | | #ifdef HAVE_EVENTFD |
30 | | typedef struct usbi_event { |
31 | | int eventfd; |
32 | | } usbi_event_t; |
33 | 0 | #define USBI_EVENT_OS_HANDLE(e) ((e)->eventfd) |
34 | 0 | #define USBI_EVENT_POLL_EVENTS POLLIN |
35 | 0 | #define USBI_INVALID_EVENT { -1 } |
36 | | #else |
37 | | typedef struct usbi_event { |
38 | | int pipefd[2]; |
39 | | #ifdef __EMSCRIPTEN__ |
40 | | _Atomic int has_event; |
41 | | #endif |
42 | | } usbi_event_t; |
43 | | #define USBI_EVENT_OS_HANDLE(e) ((e)->pipefd[0]) |
44 | | #define USBI_EVENT_POLL_EVENTS POLLIN |
45 | | #define USBI_INVALID_EVENT { { -1, -1 } } |
46 | | #endif |
47 | | |
48 | | #ifdef HAVE_TIMERFD |
49 | | #define HAVE_OS_TIMER 1 |
50 | | typedef struct usbi_timer { |
51 | | int timerfd; |
52 | | } usbi_timer_t; |
53 | 0 | #define USBI_TIMER_OS_HANDLE(t) ((t)->timerfd) |
54 | 0 | #define USBI_TIMER_POLL_EVENTS POLLIN |
55 | | |
56 | | static inline int usbi_timer_valid(usbi_timer_t *timer) |
57 | 0 | { |
58 | 0 | return timer->timerfd >= 0; |
59 | 0 | } Unexecuted instantiation: libusb_fuzzer.cc:usbi_timer_valid(usbi_timer*) Unexecuted instantiation: io.c:usbi_timer_valid Unexecuted instantiation: events_posix.c:usbi_timer_valid Unexecuted instantiation: threads_posix.c:usbi_timer_valid Unexecuted instantiation: linux_usbfs.c:usbi_timer_valid Unexecuted instantiation: linux_udev.c:usbi_timer_valid Unexecuted instantiation: core.c:usbi_timer_valid Unexecuted instantiation: descriptor.c:usbi_timer_valid Unexecuted instantiation: hotplug.c:usbi_timer_valid Unexecuted instantiation: sync.c:usbi_timer_valid |
60 | | #endif |
61 | | |
62 | | #endif |