X-Git-Url: http://47.100.26.94:8080/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjni%2Flibusb-1.0.22%2Flibusb%2Fos%2Flinux_udev.c;fp=app%2Fsrc%2Fmain%2Fjni%2Flibusb-1.0.22%2Flibusb%2Fos%2Flinux_udev.c;h=0000000000000000000000000000000000000000;hb=4d7fc85844bbd24cc1b15f60fed3b8aaa507962f;hp=c97806ba6b16f7ae12f2281df197552553308826;hpb=d0d496554f96cebf84db3e9b3cf507577272ef8c;p=rtmpclient.git diff --git a/app/src/main/jni/libusb-1.0.22/libusb/os/linux_udev.c b/app/src/main/jni/libusb-1.0.22/libusb/os/linux_udev.c deleted file mode 100644 index c97806b..0000000 --- a/app/src/main/jni/libusb-1.0.22/libusb/os/linux_udev.c +++ /dev/null @@ -1,329 +0,0 @@ -/* -*- Mode: C; c-basic-offset:8 ; indent-tabs-mode:t -*- */ -/* - * Linux usbfs backend for libusb - * Copyright (C) 2007-2009 Daniel Drake - * Copyright (c) 2001 Johannes Erdfelt - * Copyright (c) 2012-2013 Nathan Hjelm - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "libusbi.h" -#include "linux_usbfs.h" - -/* udev context */ -static struct udev *udev_ctx = NULL; -static int udev_monitor_fd = -1; -static int udev_control_pipe[2] = {-1, -1}; -static struct udev_monitor *udev_monitor = NULL; -static pthread_t linux_event_thread; - -static void udev_hotplug_event(struct udev_device* udev_dev); -static void *linux_udev_event_thread_main(void *arg); - -int linux_udev_start_event_monitor(void) -{ - int r; - - assert(udev_ctx == NULL); - udev_ctx = udev_new(); - if (!udev_ctx) { - usbi_err(NULL, "could not create udev context"); - goto err; - } - - udev_monitor = udev_monitor_new_from_netlink(udev_ctx, "udev"); - if (!udev_monitor) { - usbi_err(NULL, "could not initialize udev monitor"); - goto err_free_ctx; - } - - r = udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device"); - if (r) { - usbi_err(NULL, "could not initialize udev monitor filter for \"usb\" subsystem"); - goto err_free_monitor; - } - - if (udev_monitor_enable_receiving(udev_monitor)) { - usbi_err(NULL, "failed to enable the udev monitor"); - goto err_free_monitor; - } - - udev_monitor_fd = udev_monitor_get_fd(udev_monitor); - -#if defined(FD_CLOEXEC) - /* Make sure the udev file descriptor is marked as CLOEXEC */ - r = fcntl(udev_monitor_fd, F_GETFD); - if (r == -1) { - usbi_err(NULL, "geting udev monitor fd flags (%d)", errno); - goto err_free_monitor; - } - if (!(r & FD_CLOEXEC)) { - if (fcntl(udev_monitor_fd, F_SETFD, r | FD_CLOEXEC) == -1) { - usbi_err(NULL, "setting udev monitor fd flags (%d)", errno); - goto err_free_monitor; - } - } -#endif - - /* Some older versions of udev are not non-blocking by default, - * so make sure this is set */ - r = fcntl(udev_monitor_fd, F_GETFL); - if (r == -1) { - usbi_err(NULL, "getting udev monitor fd status flags (%d)", errno); - goto err_free_monitor; - } - if (!(r & O_NONBLOCK)) { - if (fcntl(udev_monitor_fd, F_SETFL, r | O_NONBLOCK) == -1) { - usbi_err(NULL, "setting udev monitor fd status flags (%d)", errno); - goto err_free_monitor; - } - } - - r = usbi_pipe(udev_control_pipe); - if (r) { - usbi_err(NULL, "could not create udev control pipe"); - goto err_free_monitor; - } - - r = pthread_create(&linux_event_thread, NULL, linux_udev_event_thread_main, NULL); - if (r) { - usbi_err(NULL, "creating hotplug event thread (%d)", r); - goto err_close_pipe; - } - - return LIBUSB_SUCCESS; - -err_close_pipe: - close(udev_control_pipe[0]); - close(udev_control_pipe[1]); -err_free_monitor: - udev_monitor_unref(udev_monitor); - udev_monitor = NULL; - udev_monitor_fd = -1; -err_free_ctx: - udev_unref(udev_ctx); -err: - udev_ctx = NULL; - return LIBUSB_ERROR_OTHER; -} - -int linux_udev_stop_event_monitor(void) -{ - char dummy = 1; - int r; - - assert(udev_ctx != NULL); - assert(udev_monitor != NULL); - assert(udev_monitor_fd != -1); - - /* Write some dummy data to the control pipe and - * wait for the thread to exit */ - r = write(udev_control_pipe[1], &dummy, sizeof(dummy)); - if (r <= 0) { - usbi_warn(NULL, "udev control pipe signal failed"); - } - pthread_join(linux_event_thread, NULL); - - /* Release the udev monitor */ - udev_monitor_unref(udev_monitor); - udev_monitor = NULL; - udev_monitor_fd = -1; - - /* Clean up the udev context */ - udev_unref(udev_ctx); - udev_ctx = NULL; - - /* close and reset control pipe */ - close(udev_control_pipe[0]); - close(udev_control_pipe[1]); - udev_control_pipe[0] = -1; - udev_control_pipe[1] = -1; - - return LIBUSB_SUCCESS; -} - -static void *linux_udev_event_thread_main(void *arg) -{ - char dummy; - int r; - ssize_t nb; - struct udev_device* udev_dev; - struct pollfd fds[] = { - {.fd = udev_control_pipe[0], - .events = POLLIN}, - {.fd = udev_monitor_fd, - .events = POLLIN}, - }; - - usbi_dbg("udev event thread entering."); - - while ((r = poll(fds, 2, -1)) >= 0 || errno == EINTR) { - if (r < 0) { - /* temporary failure */ - continue; - } - if (fds[0].revents & POLLIN) { - /* activity on control pipe, read the byte and exit */ - nb = read(udev_control_pipe[0], &dummy, sizeof(dummy)); - if (nb <= 0) { - usbi_warn(NULL, "udev control pipe read failed"); - } - break; - } - if (fds[1].revents & POLLIN) { - usbi_mutex_static_lock(&linux_hotplug_lock); - udev_dev = udev_monitor_receive_device(udev_monitor); - if (udev_dev) - udev_hotplug_event(udev_dev); - usbi_mutex_static_unlock(&linux_hotplug_lock); - } - } - - usbi_dbg("udev event thread exiting"); - - return NULL; -} - -static int udev_device_info(struct libusb_context *ctx, int detached, - struct udev_device *udev_dev, uint8_t *busnum, - uint8_t *devaddr, const char **sys_name) { - const char *dev_node; - - dev_node = udev_device_get_devnode(udev_dev); - if (!dev_node) { - return LIBUSB_ERROR_OTHER; - } - - *sys_name = udev_device_get_sysname(udev_dev); - if (!*sys_name) { - return LIBUSB_ERROR_OTHER; - } - - return linux_get_device_address(ctx, detached, busnum, devaddr, - dev_node, *sys_name); -} - -static void udev_hotplug_event(struct udev_device* udev_dev) -{ - const char* udev_action; - const char* sys_name = NULL; - uint8_t busnum = 0, devaddr = 0; - int detached; - int r; - - do { - udev_action = udev_device_get_action(udev_dev); - if (!udev_action) { - break; - } - - detached = !strncmp(udev_action, "remove", 6); - - r = udev_device_info(NULL, detached, udev_dev, &busnum, &devaddr, &sys_name); - if (LIBUSB_SUCCESS != r) { - break; - } - - usbi_dbg("udev hotplug event. action: %s.", udev_action); - - if (strncmp(udev_action, "add", 3) == 0) { - linux_hotplug_enumerate(busnum, devaddr, sys_name); - } else if (detached) { - linux_device_disconnected(busnum, devaddr); - } else { - usbi_err(NULL, "ignoring udev action %s", udev_action); - } - } while (0); - - udev_device_unref(udev_dev); -} - -int linux_udev_scan_devices(struct libusb_context *ctx) -{ - struct udev_enumerate *enumerator; - struct udev_list_entry *devices, *entry; - struct udev_device *udev_dev; - const char *sys_name; - int r; - - assert(udev_ctx != NULL); - - enumerator = udev_enumerate_new(udev_ctx); - if (NULL == enumerator) { - usbi_err(ctx, "error creating udev enumerator"); - return LIBUSB_ERROR_OTHER; - } - - udev_enumerate_add_match_subsystem(enumerator, "usb"); - udev_enumerate_add_match_property(enumerator, "DEVTYPE", "usb_device"); - udev_enumerate_scan_devices(enumerator); - devices = udev_enumerate_get_list_entry(enumerator); - - entry = NULL; - udev_list_entry_foreach(entry, devices) { - const char *path = udev_list_entry_get_name(entry); - uint8_t busnum = 0, devaddr = 0; - - udev_dev = udev_device_new_from_syspath(udev_ctx, path); - - r = udev_device_info(ctx, 0, udev_dev, &busnum, &devaddr, &sys_name); - if (r) { - udev_device_unref(udev_dev); - continue; - } - - linux_enumerate_device(ctx, busnum, devaddr, sys_name); - udev_device_unref(udev_dev); - } - - udev_enumerate_unref(enumerator); - - return LIBUSB_SUCCESS; -} - -void linux_udev_hotplug_poll(void) -{ - struct udev_device* udev_dev; - - usbi_mutex_static_lock(&linux_hotplug_lock); - do { - udev_dev = udev_monitor_receive_device(udev_monitor); - if (udev_dev) { - usbi_dbg("Handling hotplug event from hotplug_poll"); - udev_hotplug_event(udev_dev); - } - } while (udev_dev); - usbi_mutex_static_unlock(&linux_hotplug_lock); -}