The bbcr broke off my compilation help plz

dev_evdev.c

@@ -0,0 +1,130 @@
+#include "dev_evdev.h"
+#include <libevdev-1.0/libevdev/libevdev.h>
+
+static const char *input_path = "/dev/input/";
+
+static pthread_mutex_t input_acquire_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static int open_fds[] = {
+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
+    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 
+};
+
+static bool ev_matches(struct libevdev *dev, const uinput_filters_t* const filters) {
+
+    const char* name = libevdev_get_name(dev);
+    if ((name != NULL) && (strcmp(name, filters->name) != 0)) {
+        return false;
+    }
+
+    // TODO: if more filters are implemented write them here
+
+    return true;
+}
+
+void dev_evdev_close(struct libevdev* out_evdev) {
+    if (out_evdev == NULL) {
+        return;
+    }
+
+    const int input_acquire_lock_result = pthread_mutex_lock(&input_acquire_mutex);
+    if (input_acquire_lock_result != 0) {
+        fprintf(stderr, "Cannot lock input mutex: %d -- this will probably have no consequences\n", input_acquire_lock_result);
+        return;
+    }
+
+    int fd = libevdev_get_fd(out_evdev);
+    for (int i = 0; i < sizeof(open_fds) / sizeof(int); ++i) {
+        open_fds[i] = (open_fds[i] == fd) ? -1 : open_fds[i];
+    }
+
+    // free the memory
+    libevdev_free(out_evdev);
+
+    pthread_mutex_unlock(&input_acquire_mutex);
+}
+
+int dev_evdev_open(
+    const uinput_filters_t *const in_filters,
+    struct libevdev* out_evdev
+) {
+    int res = -ENOENT;
+
+    int open_sysfs_idx = -1;
+
+    res = pthread_mutex_lock(&input_acquire_mutex);
+    if (res != 0) {
+        fprintf(stderr, "Cannot lock input mutex: %d\n", res);
+        goto dev_evdev_open_err;
+    }
+
+    char path[512] = "\0";
+    
+    DIR *d;
+    struct dirent *dir;
+    d = opendir(input_path);
+    if (d) {
+        while ((dir = readdir(d)) != NULL) {
+            if (dir->d_name[0] == '.') {
+                continue;
+            } else if (dir->d_name[0] == 'b') { // by-id
+                continue;
+            } else if (dir->d_name[0] == 'j') { // js-0
+                continue;
+            }
+
+            sprintf(path, "%s%s", input_path, dir->d_name);
+
+            // try to open the device, if it cannot be opened to go the next
+            int fd = open(path, O_RDWR);
+            if (fd < 0) {
+                //fprintf(stderr, "Cannot open %s, device skipped.\n", sysfs_entry);
+                continue;
+            }
+
+            // check if that has been already opened
+            // open_sysfs
+            int skip = 0;
+            for (int o = 0; o < (sizeof(open_fds) / sizeof(int)); ++o) {
+                if ((open_fds[o] != -1) && (open_fds[o] == fd)) {
+                    close(fd);
+                    skip = 1;
+                    break;
+                } else if (open_fds[o] == -1) {
+                    open_sysfs_idx = o;
+                }
+            }
+
+            if ((skip) || (open_sysfs_idx == -1)) {
+                continue;
+            } else {
+                open_fds[open_sysfs_idx] = fd;
+            }
+
+            if (libevdev_new_from_fd(fd, &out_evdev) != 0) {
+                //fprintf(stderr, "Cannot initialize libevdev from this device (%s): skipping.\n", sysfs_entry);
+                close(fd);
+                continue;
+            }
+
+            // try to open the device
+            if (!ev_matches(out_evdev, in_filters)) {
+                libevdev_free(out_evdev);
+                close(fd);
+                continue;
+            }
+
+            // the device has been found
+            break;
+        }
+        closedir(d);
+    }
+
+    pthread_mutex_unlock(&input_acquire_mutex);
+
+dev_evdev_open_err:
+    return res;
+}