recovery: Switch fuse_* to C++.

Change-Id: Id50c3e6febd0ab61f10a654b9b265cf21a2d1701
(cherry picked from commit 71dc365f25)

Android.mk

@@ -16,7 +16,7 @@ LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := fuse_sideload.c
+LOCAL_SRC_FILES := fuse_sideload.cpp
 LOCAL_CLANG := true
 LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
@@ -33,7 +33,7 @@ LOCAL_SRC_FILES := \
     asn1_decoder.cpp \
     bootloader.cpp \
     device.cpp \
-    fuse_sdcard_provider.c \
+    fuse_sdcard_provider.cpp \
     install.cpp \
     recovery.cpp \
     roots.cpp \

fuse_sdcard_provider.cpp

@@ -34,7 +34,7 @@ struct file_data {
 };
 
 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;
+    file_data* fd = reinterpret_cast<file_data*>(cookie);
 
     off64_t offset = ((off64_t) block) * fd->block_size;
     if (TEMP_FAILURE_RETRY(lseek64(fd->fd, offset, SEEK_SET)) == -1) {
@@ -56,7 +56,7 @@ static int read_block_file(void* cookie, uint32_t block, uint8_t* buffer, uint32
 }
 
 static void close_file(void* cookie) {
-    struct file_data* fd = (struct file_data*)cookie;
+    file_data* fd = reinterpret_cast<file_data*>(cookie);
     close(fd->fd);
 }
 
@@ -67,7 +67,7 @@ struct token {
 };
 
 static void* run_sdcard_fuse(void* cookie) {
-    struct token* t = (struct token*)cookie;
+    token* t = reinterpret_cast<token*>(cookie);
 
     struct stat sb;
     if (stat(t->path, &sb) < 0) {
@@ -100,7 +100,7 @@ static void* run_sdcard_fuse(void* cookie) {
 #define SDCARD_INSTALL_TIMEOUT 10
 
 void* start_sdcard_fuse(const char* path) {
-    struct token* t = malloc(sizeof(struct token));
+    token* t = new token;
 
     t->path = path;
     pthread_create(&(t->th), NULL, run_sdcard_fuse, t);
@@ -128,7 +128,7 @@ void* start_sdcard_fuse(const char* path) {
 
 void finish_sdcard_fuse(void* cookie) {
     if (cookie == NULL) return;
-    struct token* t = (struct token*)cookie;
+    token* t = reinterpret_cast<token*>(cookie);
 
     // Calling stat() on this magic filename signals the fuse
     // filesystem to shut down.
@@ -136,5 +136,5 @@ void finish_sdcard_fuse(void* cookie) {
     stat(FUSE_SIDELOAD_HOST_EXIT_PATHNAME, &st);
 
     pthread_join(t->th, NULL);
-    free(t);
+    delete t;
 }

fuse_sdcard_provider.h

@@ -17,13 +17,7 @@
 #ifndef __FUSE_SDCARD_PROVIDER_H
 #define __FUSE_SDCARD_PROVIDER_H
 
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-
 void* start_sdcard_fuse(const char* path);
 void finish_sdcard_fuse(void* token);
 
-__END_DECLS
-
 #endif

fuse_sideload.cpp

@@ -116,7 +116,7 @@ static void fuse_reply(struct fuse_data* fd, __u64 unique, const void *data, siz
 }
 
 static int handle_init(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) {
-    const struct fuse_init_in* req = data;
+    const struct fuse_init_in* req = reinterpret_cast<const struct fuse_init_in*>(data);
     struct fuse_init_out out;
     size_t fuse_struct_size;
 
@@ -170,8 +170,7 @@ static void fill_attr(struct fuse_attr* attr, struct fuse_data* fd,
     attr->mode = mode;
 }
 
-static int handle_getattr(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) {
-    const struct fuse_getattr_in* req = data;
+static int handle_getattr(void* /* data */, struct fuse_data* fd, const struct fuse_in_header* hdr) {
     struct fuse_attr_out out;
     memset(&out, 0, sizeof(out));
     out.attr_valid = 10;
@@ -197,12 +196,12 @@ static int handle_lookup(void* data, struct fuse_data* fd,
     out.entry_valid = 10;
     out.attr_valid = 10;
 
-    if (strncmp(FUSE_SIDELOAD_HOST_FILENAME, data,
+    if (strncmp(FUSE_SIDELOAD_HOST_FILENAME, reinterpret_cast<const char*>(data),
                 sizeof(FUSE_SIDELOAD_HOST_FILENAME)) == 0) {
         out.nodeid = PACKAGE_FILE_ID;
         out.generation = PACKAGE_FILE_ID;
         fill_attr(&(out.attr), fd, PACKAGE_FILE_ID, fd->file_size, S_IFREG | 0444);
-    } else if (strncmp(FUSE_SIDELOAD_HOST_EXIT_FLAG, data,
+    } else if (strncmp(FUSE_SIDELOAD_HOST_EXIT_FLAG, reinterpret_cast<const char*>(data),
                        sizeof(FUSE_SIDELOAD_HOST_EXIT_FLAG)) == 0) {
         out.nodeid = EXIT_FLAG_ID;
         out.generation = EXIT_FLAG_ID;
@@ -215,9 +214,7 @@ static int handle_lookup(void* data, struct fuse_data* fd,
     return (out.nodeid == EXIT_FLAG_ID) ? NO_STATUS_EXIT : NO_STATUS;
 }
 
-static int handle_open(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) {
-    const struct fuse_open_in* req = data;
-
+static int handle_open(void* /* data */, struct fuse_data* fd, const struct fuse_in_header* hdr) {
     if (hdr->nodeid == EXIT_FLAG_ID) return -EPERM;
     if (hdr->nodeid != PACKAGE_FILE_ID) return -ENOENT;
 
@@ -292,7 +289,7 @@ static int fetch_block(struct fuse_data* fd, uint32_t block) {
 }
 
 static int handle_read(void* data, struct fuse_data* fd, const struct fuse_in_header* hdr) {
-    const struct fuse_read_in* req = data;
+    const struct fuse_read_in* req = reinterpret_cast<const struct fuse_read_in*>(data);
     struct fuse_out_header outhdr;
     struct iovec vec[3];
     int vec_used;

fuse_sideload.h

@@ -17,10 +17,6 @@
 #ifndef __FUSE_SIDELOAD_H
 #define __FUSE_SIDELOAD_H
 
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-
 // define the filenames created by the sideload FUSE filesystem
 #define FUSE_SIDELOAD_HOST_MOUNTPOINT "/sideload"
 #define FUSE_SIDELOAD_HOST_FILENAME "package.zip"
@@ -39,6 +35,4 @@ struct provider_vtab {
 int run_fuse_sideload(struct provider_vtab* vtab, void* cookie,
                       uint64_t file_size, uint32_t block_size);
 
-__END_DECLS
-
 #endif