diff options
Diffstat (limited to '')
| -rw-r--r-- | minui/events.c | 49 | ||||
| -rw-r--r-- | minui/minui.h | 15 |
2 files changed, 49 insertions, 15 deletions
diff --git a/minui/events.c b/minui/events.c index 3aed2a860..eca3bc73b 100644 --- a/minui/events.c +++ b/minui/events.c @@ -26,10 +26,18 @@ #define MAX_DEVICES 16 +struct fd_info { + ev_callback cb; + void *data; +}; + static struct pollfd ev_fds[MAX_DEVICES]; +static struct fd_info ev_fdinfo[MAX_DEVICES]; + static unsigned ev_count = 0; +static unsigned ev_dev_count = 0; -int ev_init(void) +int ev_init(ev_callback input_cb, void *data) { DIR *dir; struct dirent *de; @@ -45,6 +53,8 @@ int ev_init(void) ev_fds[ev_count].fd = fd; ev_fds[ev_count].events = POLLIN; + ev_fdinfo[ev_count].cb = input_cb; + ev_fdinfo[ev_count].data = data; ev_count++; if(ev_count == MAX_DEVICES) break; } @@ -60,23 +70,36 @@ void ev_exit(void) } } -int ev_get(struct input_event *ev, unsigned dont_wait) +int ev_wait(int timeout) { int r; + + r = poll(ev_fds, ev_count, timeout); + if (r <= 0) + return -1; + return 0; +} + +void ev_dispatch(void) +{ unsigned n; + int ret; - do { - r = poll(ev_fds, ev_count, dont_wait ? 0 : -1); + for (n = 0; n < ev_count; n++) { + ev_callback cb = ev_fdinfo[n].cb; + if (cb && (ev_fds[n].revents & ev_fds[n].events)) + cb(ev_fds[n].fd, ev_fds[n].revents, ev_fdinfo[n].data); + } +} - if(r > 0) { - for(n = 0; n < ev_count; n++) { - if(ev_fds[n].revents & POLLIN) { - r = read(ev_fds[n].fd, ev, sizeof(*ev)); - if(r == sizeof(*ev)) return 0; - } - } - } - } while(dont_wait == 0); +int ev_get_input(int fd, short revents, struct input_event *ev) +{ + int r; + if (revents & POLLIN) { + r = read(fd, ev, sizeof(*ev)); + if (r == sizeof(*ev)) + return 0; + } return -1; } diff --git a/minui/minui.h b/minui/minui.h index 2284a3374..5a4168c46 100644 --- a/minui/minui.h +++ b/minui/minui.h @@ -45,9 +45,20 @@ unsigned int gr_get_height(gr_surface surface); // see http://www.mjmwired.net/kernel/Documentation/input/ for info. struct input_event; -int ev_init(void); +typedef int (*ev_callback)(int fd, short revents, void *data); + +int ev_init(ev_callback input_cb, void *data); void ev_exit(void); -int ev_get(struct input_event *ev, unsigned dont_wait); + +/* timeout has the same semantics as for poll + * 0 : don't block + * < 0 : block forever + * > 0 : block for 'timeout' milliseconds + */ +int ev_wait(int timeout); + +int ev_get_input(int fd, short revents, struct input_event *ev); +void ev_dispatch(void); // Resources |