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-rw-r--r--minui/events.cpp209
1 files changed, 102 insertions, 107 deletions
diff --git a/minui/events.cpp b/minui/events.cpp
index 237af1ca5..6dd60fe68 100644
--- a/minui/events.cpp
+++ b/minui/events.cpp
@@ -15,16 +15,14 @@
*/
#include <dirent.h>
-#include <errno.h>
-#include <fcntl.h>
+#include <linux/input.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/epoll.h>
+#include <sys/ioctl.h>
#include <unistd.h>
-#include <linux/input.h>
-
#include "minui/minui.h"
#define MAX_DEVICES 16
@@ -34,9 +32,8 @@
#define BITS_TO_LONGS(x) (((x) + BITS_PER_LONG - 1) / BITS_PER_LONG)
struct fd_info {
- int fd;
- ev_callback cb;
- void* data;
+ int fd;
+ ev_callback cb;
};
static int g_epoll_fd;
@@ -53,89 +50,87 @@ static bool test_bit(size_t bit, unsigned long* array) { // NOLINT
return (array[bit/BITS_PER_LONG] & (1UL << (bit % BITS_PER_LONG))) != 0;
}
-int ev_init(ev_callback input_cb, void* data) {
- bool epollctlfail = false;
+int ev_init(ev_callback input_cb) {
+ bool epollctlfail = false;
- g_epoll_fd = epoll_create(MAX_DEVICES + MAX_MISC_FDS);
- if (g_epoll_fd == -1) {
- return -1;
+ g_epoll_fd = epoll_create(MAX_DEVICES + MAX_MISC_FDS);
+ if (g_epoll_fd == -1) {
+ return -1;
+ }
+
+ DIR* dir = opendir("/dev/input");
+ if (dir != NULL) {
+ dirent* de;
+ while ((de = readdir(dir))) {
+ // Use unsigned long to match ioctl's parameter type.
+ unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; // NOLINT
+
+ // fprintf(stderr,"/dev/input/%s\n", de->d_name);
+ if (strncmp(de->d_name, "event", 5)) continue;
+ int fd = openat(dirfd(dir), de->d_name, O_RDONLY);
+ if (fd == -1) continue;
+
+ // Read the evbits of the input device.
+ if (ioctl(fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits) == -1) {
+ close(fd);
+ continue;
+ }
+
+ // We assume that only EV_KEY, EV_REL, and EV_SW event types are ever needed.
+ if (!test_bit(EV_KEY, ev_bits) && !test_bit(EV_REL, ev_bits) && !test_bit(EV_SW, ev_bits)) {
+ close(fd);
+ continue;
+ }
+
+ epoll_event ev;
+ ev.events = EPOLLIN | EPOLLWAKEUP;
+ ev.data.ptr = &ev_fdinfo[ev_count];
+ if (epoll_ctl(g_epoll_fd, EPOLL_CTL_ADD, fd, &ev) == -1) {
+ close(fd);
+ epollctlfail = true;
+ continue;
+ }
+
+ ev_fdinfo[ev_count].fd = fd;
+ ev_fdinfo[ev_count].cb = std::move(input_cb);
+ ev_count++;
+ ev_dev_count++;
+ if (ev_dev_count == MAX_DEVICES) break;
}
- DIR* dir = opendir("/dev/input");
- if (dir != NULL) {
- dirent* de;
- while ((de = readdir(dir))) {
- // Use unsigned long to match ioctl's parameter type.
- unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; // NOLINT
-
-// fprintf(stderr,"/dev/input/%s\n", de->d_name);
- if (strncmp(de->d_name, "event", 5)) continue;
- int fd = openat(dirfd(dir), de->d_name, O_RDONLY);
- if (fd == -1) continue;
-
- // Read the evbits of the input device.
- if (ioctl(fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits) == -1) {
- close(fd);
- continue;
- }
-
- // We assume that only EV_KEY, EV_REL, and EV_SW event types are ever needed.
- if (!test_bit(EV_KEY, ev_bits) && !test_bit(EV_REL, ev_bits) && !test_bit(EV_SW, ev_bits)) {
- close(fd);
- continue;
- }
-
- epoll_event ev;
- ev.events = EPOLLIN | EPOLLWAKEUP;
- ev.data.ptr = &ev_fdinfo[ev_count];
- if (epoll_ctl(g_epoll_fd, EPOLL_CTL_ADD, fd, &ev) == -1) {
- close(fd);
- epollctlfail = true;
- continue;
- }
-
- ev_fdinfo[ev_count].fd = fd;
- ev_fdinfo[ev_count].cb = input_cb;
- ev_fdinfo[ev_count].data = data;
- ev_count++;
- ev_dev_count++;
- if (ev_dev_count == MAX_DEVICES) break;
- }
+ closedir(dir);
+ }
- closedir(dir);
- }
-
- if (epollctlfail && !ev_count) {
- close(g_epoll_fd);
- g_epoll_fd = -1;
- return -1;
- }
+ if (epollctlfail && !ev_count) {
+ close(g_epoll_fd);
+ g_epoll_fd = -1;
+ return -1;
+ }
- return 0;
+ return 0;
}
int ev_get_epollfd(void) {
return g_epoll_fd;
}
-int ev_add_fd(int fd, ev_callback cb, void* data) {
- if (ev_misc_count == MAX_MISC_FDS || cb == NULL) {
- return -1;
- }
-
- epoll_event ev;
- ev.events = EPOLLIN | EPOLLWAKEUP;
- ev.data.ptr = (void *)&ev_fdinfo[ev_count];
- int ret = epoll_ctl(g_epoll_fd, EPOLL_CTL_ADD, fd, &ev);
- if (!ret) {
- ev_fdinfo[ev_count].fd = fd;
- ev_fdinfo[ev_count].cb = cb;
- ev_fdinfo[ev_count].data = data;
- ev_count++;
- ev_misc_count++;
- }
-
- return ret;
+int ev_add_fd(int fd, ev_callback cb) {
+ if (ev_misc_count == MAX_MISC_FDS || cb == NULL) {
+ return -1;
+ }
+
+ epoll_event ev;
+ ev.events = EPOLLIN | EPOLLWAKEUP;
+ ev.data.ptr = static_cast<void*>(&ev_fdinfo[ev_count]);
+ int ret = epoll_ctl(g_epoll_fd, EPOLL_CTL_ADD, fd, &ev);
+ if (!ret) {
+ ev_fdinfo[ev_count].fd = fd;
+ ev_fdinfo[ev_count].cb = std::move(cb);
+ ev_count++;
+ ev_misc_count++;
+ }
+
+ return ret;
}
void ev_exit(void) {
@@ -156,13 +151,13 @@ int ev_wait(int timeout) {
}
void ev_dispatch(void) {
- for (int n = 0; n < npolledevents; n++) {
- fd_info* fdi = reinterpret_cast<fd_info*>(polledevents[n].data.ptr);
- ev_callback cb = fdi->cb;
- if (cb) {
- cb(fdi->fd, polledevents[n].events, fdi->data);
- }
+ for (int n = 0; n < npolledevents; n++) {
+ fd_info* fdi = static_cast<fd_info*>(polledevents[n].data.ptr);
+ const ev_callback& cb = fdi->cb;
+ if (cb) {
+ cb(fdi->fd, polledevents[n].events);
}
+ }
}
int ev_get_input(int fd, uint32_t epevents, input_event* ev) {
@@ -175,33 +170,33 @@ int ev_get_input(int fd, uint32_t epevents, input_event* ev) {
return -1;
}
-int ev_sync_key_state(ev_set_key_callback set_key_cb, void* data) {
- // Use unsigned long to match ioctl's parameter type.
- unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; // NOLINT
- unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)]; // NOLINT
+int ev_sync_key_state(const ev_set_key_callback& set_key_cb) {
+ // Use unsigned long to match ioctl's parameter type.
+ unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; // NOLINT
+ unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)]; // NOLINT
- for (size_t i = 0; i < ev_dev_count; ++i) {
- memset(ev_bits, 0, sizeof(ev_bits));
- memset(key_bits, 0, sizeof(key_bits));
+ for (size_t i = 0; i < ev_dev_count; ++i) {
+ memset(ev_bits, 0, sizeof(ev_bits));
+ memset(key_bits, 0, sizeof(key_bits));
- if (ioctl(ev_fdinfo[i].fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits) == -1) {
- continue;
- }
- if (!test_bit(EV_KEY, ev_bits)) {
- continue;
- }
- if (ioctl(ev_fdinfo[i].fd, EVIOCGKEY(sizeof(key_bits)), key_bits) == -1) {
- continue;
- }
+ if (ioctl(ev_fdinfo[i].fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits) == -1) {
+ continue;
+ }
+ if (!test_bit(EV_KEY, ev_bits)) {
+ continue;
+ }
+ if (ioctl(ev_fdinfo[i].fd, EVIOCGKEY(sizeof(key_bits)), key_bits) == -1) {
+ continue;
+ }
- for (int code = 0; code <= KEY_MAX; code++) {
- if (test_bit(code, key_bits)) {
- set_key_cb(code, 1, data);
- }
- }
+ for (int code = 0; code <= KEY_MAX; code++) {
+ if (test_bit(code, key_bits)) {
+ set_key_cb(code, 1);
+ }
}
+ }
- return 0;
+ return 0;
}
void ev_iterate_available_keys(const std::function<void(int)>& f) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 18:06:50 +0100