From 0d4e002670064157aa34ba8c391184151b7d402a Mon Sep 17 00:00:00 2001 From: Tao Bao Date: Sun, 19 Jul 2015 08:40:37 -0700 Subject: recovery: Switch fuse_* to C++. Change-Id: Id50c3e6febd0ab61f10a654b9b265cf21a2d1701 (cherry picked from commit 71dc365f25676cfb3f62dbb7163697a8c3c5243d) --- fuse_sdcard_provider.c | 140 ------------------------------------------------- 1 file changed, 140 deletions(-) delete mode 100644 fuse_sdcard_provider.c (limited to 'fuse_sdcard_provider.c') diff --git a/fuse_sdcard_provider.c b/fuse_sdcard_provider.c deleted file mode 100644 index 4565c7b5b..000000000 --- a/fuse_sdcard_provider.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * Copyright (C) 2014 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "fuse_sideload.h" - -struct file_data { - int fd; // the underlying sdcard file - - uint64_t file_size; - uint32_t block_size; -}; - -static int read_block_file(void* cookie, uint32_t block, uint8_t* buffer, uint32_t fetch_size) { - struct file_data* fd = (struct file_data*)cookie; - - off64_t offset = ((off64_t) block) * fd->block_size; - if (TEMP_FAILURE_RETRY(lseek64(fd->fd, offset, SEEK_SET)) == -1) { - fprintf(stderr, "seek on sdcard failed: %s\n", strerror(errno)); - return -EIO; - } - - while (fetch_size > 0) { - ssize_t r = TEMP_FAILURE_RETRY(read(fd->fd, buffer, fetch_size)); - if (r == -1) { - fprintf(stderr, "read on sdcard failed: %s\n", strerror(errno)); - return -EIO; - } - fetch_size -= r; - buffer += r; - } - - return 0; -} - -static void close_file(void* cookie) { - struct file_data* fd = (struct file_data*)cookie; - close(fd->fd); -} - -struct token { - pthread_t th; - const char* path; - int result; -}; - -static void* run_sdcard_fuse(void* cookie) { - struct token* t = (struct token*)cookie; - - struct stat sb; - if (stat(t->path, &sb) < 0) { - fprintf(stderr, "failed to stat %s: %s\n", t->path, strerror(errno)); - t->result = -1; - return NULL; - } - - struct file_data fd; - struct provider_vtab vtab; - - fd.fd = open(t->path, O_RDONLY); - if (fd.fd < 0) { - fprintf(stderr, "failed to open %s: %s\n", t->path, strerror(errno)); - t->result = -1; - return NULL; - } - fd.file_size = sb.st_size; - fd.block_size = 65536; - - vtab.read_block = read_block_file; - vtab.close = close_file; - - t->result = run_fuse_sideload(&vtab, &fd, fd.file_size, fd.block_size); - return NULL; -} - -// How long (in seconds) we wait for the fuse-provided package file to -// appear, before timing out. -#define SDCARD_INSTALL_TIMEOUT 10 - -void* start_sdcard_fuse(const char* path) { - struct token* t = malloc(sizeof(struct token)); - - t->path = path; - pthread_create(&(t->th), NULL, run_sdcard_fuse, t); - - struct stat st; - int i; - for (i = 0; i < SDCARD_INSTALL_TIMEOUT; ++i) { - if (stat(FUSE_SIDELOAD_HOST_PATHNAME, &st) != 0) { - if (errno == ENOENT && i < SDCARD_INSTALL_TIMEOUT-1) { - sleep(1); - continue; - } else { - return NULL; - } - } - } - - // The installation process expects to find the sdcard unmounted. - // Unmount it with MNT_DETACH so that our open file continues to - // work but new references see it as unmounted. - umount2("/sdcard", MNT_DETACH); - - return t; -} - -void finish_sdcard_fuse(void* cookie) { - if (cookie == NULL) return; - struct token* t = (struct token*)cookie; - - // Calling stat() on this magic filename signals the fuse - // filesystem to shut down. - struct stat st; - stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &st); - - pthread_join(t->th, NULL); - free(t); -} -- cgit v1.2.3