diff options
Diffstat (limited to '')
-rw-r--r-- | minui/events.cpp | 245 |
1 files changed, 138 insertions, 107 deletions
diff --git a/minui/events.cpp b/minui/events.cpp index 3b2262a4b..470a17a69 100644 --- a/minui/events.cpp +++ b/minui/events.cpp @@ -15,17 +15,19 @@ */ #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 <errno.h> -#include <linux/input.h> +#include <functional> -#include "minui.h" +#include "minui/minui.h" #define MAX_DEVICES 16 #define MAX_MISC_FDS 16 @@ -34,9 +36,11 @@ #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; +#ifdef TW_USE_MINUI_WITH_DATA + void* data; +#endif }; static int g_epoll_fd; @@ -49,92 +53,105 @@ static unsigned ev_count = 0; static unsigned ev_dev_count = 0; static unsigned ev_misc_count = 0; -static bool test_bit(size_t bit, unsigned long* array) { +static bool test_bit(size_t bit, unsigned long* array) { // NOLINT return (array[bit/BITS_PER_LONG] & (1UL << (bit % BITS_PER_LONG))) != 0; } +#ifdef TW_USE_MINUI_WITH_DATA int ev_init(ev_callback input_cb, void* data) { - bool epollctlfail = false; +#else +int ev_init(ev_callback input_cb) { +#endif + 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); +#ifdef TW_USE_MINUI_WITH_DATA + ev_fdinfo[ev_count].data = data; +#endif + 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))) { - unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; - -// 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; - } + closedir(dir); + } - 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); - } - - 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; } +#ifdef TW_USE_MINUI_WITH_DATA 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; +#else +int ev_add_fd(int fd, ev_callback cb) { +#endif + 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); +#ifdef TW_USE_MINUI_WITH_DATA + ev_fdinfo[ev_count].data = data; +#endif + ev_count++; + ev_misc_count++; + } + + return ret; } void ev_exit(void) { @@ -155,13 +172,17 @@ 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) { +#ifdef TW_USE_MINUI_WITH_DATA + cb(fdi->fd, polledevents[n].events, fdi->data); +#else + cb(fdi->fd, polledevents[n].events); +#endif } + } } int ev_get_input(int fd, uint32_t epevents, input_event* ev) { @@ -174,37 +195,47 @@ int ev_get_input(int fd, uint32_t epevents, input_event* ev) { return -1; } +#ifdef TW_USE_MINUI_WITH_DATA int ev_sync_key_state(ev_set_key_callback set_key_cb, void* data) { - unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; - unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)]; - - 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; - } +#else +int ev_sync_key_state(const ev_set_key_callback& set_key_cb) { +#endif + // 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)); + + 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)) { +#ifdef TW_USE_MINUI_WITH_DATA + set_key_cb(code, 1, data); +#else + set_key_cb(code, 1); +#endif + } } + } - return 0; + return 0; } -void ev_iterate_available_keys(std::function<void(int)> f) { - unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; - unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)]; +void ev_iterate_available_keys(const std::function<void(int)>& f) { + // 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)); |