1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
#ifndef WM_UTIL_HPP
#define WM_UTIL_HPP
#include <functional>
#include <sys/poll.h>
#include <vector>
#ifdef __GNUC__
#define ATTR_FORMAT(stringindex, firsttocheck) \
__attribute__((format(printf, stringindex, firsttocheck)))
#define ATTR_NORETURN __attribute__((noreturn))
#else
#define ATTR_FORMAT(stringindex, firsttocheck)
#define ATTR_NORETURN
#endif
void lognotice(char const *fmt, ...) noexcept ATTR_FORMAT(1, 2);
void logerror(char const *fmt, ...) noexcept ATTR_FORMAT(1, 2);
void fatal(char const *fmt, ...) noexcept ATTR_FORMAT(1, 2) ATTR_NORETURN;
#ifdef DEBUG_OUTPUT
void logdebug(char const *fmt, ...) noexcept ATTR_FORMAT(1, 2);
#else
static inline void logdebug(char const *fmt, ...) noexcept ATTR_FORMAT(1, 2);
static inline void logdebug(char const *fmt, ...) noexcept {}
#endif
// _ _ _ __ _
// ___| |_ _ __ _ _ ___| |_ _ _ _ __ (_) __ _ _ _ ___ / _| __| |
// / __| __| '__| | | |/ __| __| | | | | '_ \| |/ _` | | | |/ _ \ | |_ / _` |
// \__ \ |_| | | |_| | (__| |_ | |_| | | | | | (_| | |_| | __/ | _| (_| |
// |___/\__|_| \__,_|\___|\__| \__,_|_| |_|_|\__, |\__,_|\___|___|_| \__,_|
// |_| |_____|
struct unique_fd {
int fd{-1};
unique_fd() = default;
explicit unique_fd(int f) : fd{f} {}
operator int() const { return fd; }
~unique_fd();
unique_fd(unique_fd const &) = delete;
unique_fd &operator=(unique_fd const &) = delete;
unique_fd(unique_fd &&o) : fd(o.fd) { o.fd = -1; }
unique_fd &operator=(unique_fd &&o) {
std::swap(this->fd, o.fd);
return *this;
}
};
// _ _ ____ _ _
// ___| |_ _ __ _ _ ___| |_ | _ \ ___ | | | ___ _ __
// / __| __| '__| | | |/ __| __| | |_) / _ \| | |/ _ \ '__|
// \__ \ |_| | | |_| | (__| |_ | __/ (_) | | | __/ |
// |___/\__|_| \__,_|\___|\__| |_| \___/|_|_|\___|_|
//
struct Poller {
std::vector<std::function<int(int)>> handlers;
std::vector<struct pollfd> pfds;
Poller() = default;
void add_fd(int fd, std::function<int(int)> handler);
int check_events();
};
#endif // !WM_UTIL_HPP
|