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
|
#pragma once
#include "../plugin.h"
// This extension let your plugin hook itself into the host select/poll/epoll/kqueue reactor.
// This is useful to handle asynchronous I/O on the main thread.
static CLAP_CONSTEXPR const char CLAP_EXT_POSIX_FD_SUPPORT[] = "clap.posix-fd-support";
#ifdef __cplusplus
extern "C" {
#endif
enum {
// IO events flags, they can be used to form a mask which describes:
// - which events you are interested in (register_fd/modify_fd)
// - which events happened (on_fd)
CLAP_POSIX_FD_READ = 1 << 0,
CLAP_POSIX_FD_WRITE = 1 << 1,
CLAP_POSIX_FD_ERROR = 1 << 2,
};
typedef uint32_t clap_posix_fd_flags_t;
typedef struct clap_plugin_posix_fd_support {
// This callback is "level-triggered".
// It means that a writable fd will continuously produce "on_fd()" events;
// don't forget using modify_fd() to remove the write notification once you're
// done writting.
//
// [main-thread]
void(CLAP_ABI *on_fd)(const clap_plugin_t *plugin, int fd, clap_posix_fd_flags_t flags);
} clap_plugin_posix_fd_support_t;
typedef struct clap_host_posix_fd_support {
// [main-thread]
bool(CLAP_ABI *register_fd)(const clap_host_t *host, int fd, clap_posix_fd_flags_t flags);
// [main-thread]
bool(CLAP_ABI *modify_fd)(const clap_host_t *host, int fd, clap_posix_fd_flags_t flags);
// [main-thread]
bool(CLAP_ABI *unregister_fd)(const clap_host_t *host, int fd);
} clap_host_posix_fd_support_t;
#ifdef __cplusplus
}
#endif
|
