212 lines
6.9 KiB
Diff
212 lines
6.9 KiB
Diff
diff --git a/vendor/core/fastboot/usb_linux.cpp b/vendor/core/fastboot/usb_linux.cpp
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index 964488c..d03f3a2 100644
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--- a/vendor/core/fastboot/usb_linux.cpp
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+++ b/vendor/core/fastboot/usb_linux.cpp
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@@ -42,6 +42,9 @@
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#include <linux/usbdevice_fs.h>
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#include <linux/version.h>
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#include <linux/usb/ch9.h>
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+#ifdef __ANDROID__
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+#include <libusb-1.0/libusb.h>
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+#endif
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#include <android-base/file.h>
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#include <android-base/stringprintf.h>
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@@ -88,6 +91,10 @@ using namespace std::chrono_literals;
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struct usb_handle
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{
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char fname[64];
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+#ifdef __ANDROID__
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+ int fd;
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+ bool termux_usb;
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+#endif
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int desc;
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unsigned char ep_in;
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unsigned char ep_out;
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@@ -141,6 +148,9 @@ static int check(void *_desc, int len, unsigned type, int size)
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}
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static int filter_usb_device(char* sysfs_name,
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+#ifdef __ANDROID__
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+ libusb_context *context, int fd, bool termux_usb,
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+#endif
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char *ptr, int len, int writable,
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ifc_match_func callback,
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int *ept_in_id, int *ept_out_id, int *ifc_id)
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@@ -173,7 +183,13 @@ static int filter_usb_device(char* sysfs_name,
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info.dev_subclass = dev->bDeviceSubClass;
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info.dev_protocol = dev->bDeviceProtocol;
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info.writable = writable;
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+#ifdef __ANDROID__
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+ info.termux_usb = termux_usb;
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+ if (termux_usb)
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+ snprintf(info.device_path, sizeof(info.device_path), "fd:%d", fd);
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+ else
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+#endif
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snprintf(info.device_path, sizeof(info.device_path), "usb:%s", sysfs_name);
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/* Read device serial number (if there is one).
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@@ -184,6 +200,15 @@ static int filter_usb_device(char* sysfs_name,
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*/
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info.serial_number[0] = '\0';
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if (dev->iSerialNumber) {
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+#ifdef __ANDROID__
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+ if (termux_usb) {
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+ libusb_device_handle *handle;
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+ unsigned char serial_num[256];
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+ libusb_wrap_sys_device(context, fd, &handle);
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+ libusb_get_string_descriptor_ascii(handle, dev->iSerialNumber, serial_num, sizeof(serial_num));
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+ snprintf(info.serial_number, sizeof(info.serial_number), "%s", serial_num);
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+ } else {
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+#endif
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char path[80];
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int fd;
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@@ -204,6 +229,9 @@ static int filter_usb_device(char* sysfs_name,
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info.serial_number[chars_read - 1] = '\0';
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}
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}
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+#ifdef __ANDROID__
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+ }
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+#endif
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}
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for(i = 0; i < cfg->bNumInterfaces; i++) {
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@@ -265,12 +293,20 @@ static int filter_usb_device(char* sysfs_name,
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info.has_bulk_in = (in != -1);
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info.has_bulk_out = (out != -1);
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+#ifdef __ANDROID__
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+ if (termux_usb)
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+ snprintf(info.interface, sizeof(info.interface), "fastboot\n");
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+ else {
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+#endif
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std::string interface;
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auto path = android::base::StringPrintf("/sys/bus/usb/devices/%s/%s:1.%d/interface",
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sysfs_name, sysfs_name, ifc->bInterfaceNumber);
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if (android::base::ReadFileToString(path, &interface)) {
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snprintf(info.interface, sizeof(info.interface), "%s", interface.c_str());
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}
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+#ifdef __ANDROID__
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+ }
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+#endif
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if(callback(&info) == 0) {
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*ept_in_id = in;
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@@ -342,7 +378,11 @@ static int convert_to_devfs_name(const char* sysfs_name,
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return 0;
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}
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+#ifdef __ANDROID__
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+static std::unique_ptr<usb_handle> find_usb_device(const char* base, libusb_context *context, ifc_match_func callback)
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+#else
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static std::unique_ptr<usb_handle> find_usb_device(const char* base, ifc_match_func callback)
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+#endif
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{
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std::unique_ptr<usb_handle> usb;
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char devname[64];
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@@ -353,16 +393,47 @@ static std::unique_ptr<usb_handle> find_usb_device(const char* base, ifc_match_f
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int fd;
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int writable;
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+#ifdef __ANDROID__
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+ bool linux_usb, termux_usb;
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+ linux_usb = termux_usb = true;
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+ writable = 1;
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+ char* fd_str = getenv("TERMUX_USB_FD");
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+ if (fd_str == nullptr) termux_usb = false;
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+ else {
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+ fd = strtol(fd_str, NULL, 10);
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+ if (fcntl(fd, F_GETFD) == -1) termux_usb = false;
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+ }
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+#endif
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+
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std::unique_ptr<DIR, decltype(&closedir)> busdir(opendir(base), closedir);
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+#ifdef __ANDROID__
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+ if (busdir == 0) linux_usb = false;
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+
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+ bool is_linux_usb, is_termux_usb;
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+
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+ while (((is_linux_usb = (linux_usb && (de = readdir(busdir.get())))) || termux_usb) && (usb == nullptr)) {
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+ is_termux_usb = !is_linux_usb;
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+
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+ if (is_termux_usb)
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+ termux_usb = false;
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+ else if (badname(de->d_name)) continue;
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+
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+ if (is_termux_usb || !convert_to_devfs_name(de->d_name, devname, sizeof(devname))) {
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+#else
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if (busdir == 0) return 0;
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while ((de = readdir(busdir.get())) && (usb == nullptr)) {
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if (badname(de->d_name)) continue;
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if (!convert_to_devfs_name(de->d_name, devname, sizeof(devname))) {
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+#endif
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// DBG("[ scanning %s ]\n", devname);
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writable = 1;
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+#ifdef __ANDROID__
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+ if (is_termux_usb) lseek(fd, 0, SEEK_SET);
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+ else {
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+#endif
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if ((fd = open(devname, O_RDWR)) < 0) {
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// Check if we have read-only access, so we can give a helpful
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// diagnostic like "adb devices" does.
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@@ -371,12 +442,24 @@ static std::unique_ptr<usb_handle> find_usb_device(const char* base, ifc_match_f
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continue;
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}
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}
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+#ifdef __ANDROID__
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+ }
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+#endif
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n = read(fd, desc, sizeof(desc));
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+#ifdef __ANDROID__
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+ if (filter_usb_device(de->d_name, context, fd, is_termux_usb, desc, n, writable, callback, &in, &out, &ifc) == 0) {
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+#else
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if (filter_usb_device(de->d_name, desc, n, writable, callback, &in, &out, &ifc) == 0) {
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+#endif
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usb.reset(new usb_handle());
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+#ifdef __ANDROID__
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+ usb->fd = fd;
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+ usb->termux_usb = is_termux_usb;
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+#else
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strcpy(usb->fname, devname);
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+#endif
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usb->ep_in = in;
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usb->ep_out = out;
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usb->desc = fd;
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@@ -503,8 +586,13 @@ int LinuxUsbTransport::Reset() {
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return 0;
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}
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+#ifdef __ANDROID__
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+UsbTransport* usb_open(ifc_match_func callback, libusb_context *context, uint32_t timeout_ms) {
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+ std::unique_ptr<usb_handle> handle = find_usb_device("/sys/bus/usb/devices", context, callback);
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+#else
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UsbTransport* usb_open(ifc_match_func callback, uint32_t timeout_ms) {
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std::unique_ptr<usb_handle> handle = find_usb_device("/sys/bus/usb/devices", callback);
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+#endif
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return handle ? new LinuxUsbTransport(std::move(handle), timeout_ms) : nullptr;
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}
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@@ -516,7 +604,15 @@ int LinuxUsbTransport::WaitForDisconnect()
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{
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double deadline = now() + WAIT_FOR_DISCONNECT_TIMEOUT;
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while (now() < deadline) {
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+#ifdef __ANDROID__
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+ if(handle_->termux_usb) {
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+ if (fcntl(handle_->fd, F_GETFD) == -1) return 0;
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+ } else {
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+#endif
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if (access(handle_->fname, F_OK)) return 0;
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+#ifdef __ANDROID__
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+ }
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+#endif
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std::this_thread::sleep_for(50ms);
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}
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return -1;
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