init

udev_monitor.c

@@ -0,0 +1,125 @@
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "udev.h"
+
+struct udev_monitor
+{
+    struct udev *udev;
+    int refcount;
+    int fd[2];
+};
+
+UDEV_EXPORT struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monitor)
+{
+    return (void *)1;
+}
+
+UDEV_EXPORT int udev_monitor_enable_receiving(struct udev_monitor *udev_monitor)
+{
+    return 0;
+}
+
+UDEV_EXPORT int udev_monitor_set_receive_buffer_size(struct udev_monitor *udev_monitor, int size)
+{
+    return 0;
+}
+
+UDEV_EXPORT int udev_monitor_get_fd(struct udev_monitor *udev_monitor)
+{
+    if (!udev_monitor) {
+        return -1;
+    }
+
+    return udev_monitor->fd[0];
+}
+
+UDEV_EXPORT struct udev *udev_monitor_get_udev(struct udev_monitor *udev_monitor)
+{
+    if (!udev_monitor) {
+        return NULL;
+    }
+
+    return udev_monitor->udev;
+}
+
+UDEV_EXPORT int udev_monitor_filter_update(struct udev_monitor *udev_monitor)
+{
+    return 0;
+}
+
+UDEV_EXPORT int udev_monitor_filter_remove(struct udev_monitor *udev_monitor)
+{
+    return 0;
+}
+
+UDEV_EXPORT int udev_monitor_filter_add_match_subsystem_devtype(struct udev_monitor *udev_monitor, const char *subsystem, const char *devtype)
+{
+    return 0;
+}
+
+UDEV_EXPORT int udev_monitor_filter_add_match_tag(struct udev_monitor *udev_monitor, const char *tag)
+{
+    return 0;
+}
+
+UDEV_EXPORT struct udev_monitor *udev_monitor_new_from_netlink(struct udev *udev, const char *name)
+{
+    struct udev_monitor *udev_monitor;
+    int i;
+
+    if (!udev || !name) {
+        return NULL;
+    }
+
+    udev_monitor = calloc(1, sizeof(struct udev_monitor));
+
+    if (!udev_monitor) {
+        return NULL;
+    }
+
+    // TODO better no-op, HELP WANTED !
+    if (pipe(udev_monitor->fd) == -1) {
+        free(udev_monitor);
+        return NULL;
+    }
+
+    for (i = 0; i < 2; i++) {
+        fcntl(udev_monitor->fd[i], F_SETFD, FD_CLOEXEC | O_NONBLOCK);
+    }
+
+    udev_monitor->refcount = 1;
+    udev_monitor->udev = udev;
+    return udev_monitor;
+}
+
+UDEV_EXPORT struct udev_monitor *udev_monitor_ref(struct udev_monitor *udev_monitor)
+{
+    if (!udev_monitor) {
+        return NULL;
+    }
+
+    udev_monitor->refcount++;
+    return udev_monitor;
+}
+
+UDEV_EXPORT struct udev_monitor *udev_monitor_unref(struct udev_monitor *udev_monitor)
+{
+    int i;
+
+    if (!udev_monitor) {
+        return NULL;
+    }
+
+    if (--udev_monitor->refcount > 0) {
+        return NULL;
+    }
+
+    for (i = 0; i < 2; i++) {
+        close(udev_monitor->fd[i]);
+    }
+
+    free(udev_monitor);
+    return NULL;
+}