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-rw-r--r--libfusepp/fuseapp.cpp98
-rw-r--r--libfusepp/fuseapp.h104
2 files changed, 110 insertions, 92 deletions
diff --git a/libfusepp/fuseapp.cpp b/libfusepp/fuseapp.cpp
index 196d72d..1a6494a 100644
--- a/libfusepp/fuseapp.cpp
+++ b/libfusepp/fuseapp.cpp
@@ -6,7 +6,7 @@
#include <stdlib.h>
#include <typeinfo>
-static FuseAppBase * fuseApp;
+FuseAppBase * FuseAppBase::fuseApp;
FuseAppBase::FuseAppBase()
{
@@ -178,115 +178,37 @@ int FuseAppBase::flock(const char *, struct fuse_file_info *, int)
{
return -ENOSYS;
}
+int FuseAppBase::fallocate(const char *, int, off_t, off_t, struct fuse_file_info *)
+{
+ return -ENOSYS;
+}
int FuseAppBase::onError(const std::exception & e) throw()
{
fprintf(stderr, "Unknown exception calling (what: %s)\n", e.what());
return -ENOSYS;
}
-template <typename... Args>
-class fuseCall {
- public:
- template <int (FuseAppBase::*f)(Args...)>
- static int helper(Args ... a)
- {
- try {
- return (fuseApp->*f)(a...);
- }
- catch (const std::exception & ex) {
- if (int rtn = fuseApp->onError(ex)) {
- return rtn;
- }
- return helper<f>(a...);
- }
- catch (...) {
- fprintf(stderr, "Unknown exception calling %s\n", typeid(f).name());
- return -ENOSYS;
- }
- }
-};
-static void * fuseInit (struct fuse_conn_info *conn)
+void * FuseAppBase::fuseInit (struct fuse_conn_info *conn)
{
return fuseApp->init(conn);
}
-static void fuseDestroy(void *)
+void FuseAppBase::fuseDestroy(void *)
{
delete fuseApp;
}
-int
-FuseAppBase::run(int & argc, char** & argv, FuseAppBase * fa)
+struct fuse_args
+FuseAppBase::runint(int & argc, char** & argv, FuseAppBase * fa)
{
struct fuse_opt fuse_opts[] = {
{ NULL, 0, 0 }
};
fuseApp = fa;
- struct fuse_operations operations = {
- fuseCall<const char *, struct stat *>::helper<&FuseAppBase::getattr>,
- fuseCall<const char *, char *, size_t>::helper<&FuseAppBase::readlink>,
- NULL, // getdir deprecated
- fuseCall<const char *, mode_t, dev_t>::helper<&FuseAppBase::mknod>,
- fuseCall<const char *, mode_t>::helper<&FuseAppBase::mkdir>,
- fuseCall<const char *>::helper<&FuseAppBase::unlink>,
- fuseCall<const char *>::helper<&FuseAppBase::rmdir>,
- fuseCall<const char *, const char *>::helper<&FuseAppBase::symlink>,
- fuseCall<const char *, const char *>::helper<&FuseAppBase::rename>,
- fuseCall<const char *, const char *>::helper<&FuseAppBase::link>,
- fuseCall<const char *, mode_t>::helper<&FuseAppBase::chmod>,
- fuseCall<const char *, uid_t, gid_t>::helper<&FuseAppBase::chown>,
- fuseCall<const char *, off_t>::helper<&FuseAppBase::truncate>,
- NULL, // utime deprecated
- fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::open>,
- fuseCall<const char *, char *, size_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::read>,
- fuseCall<const char *, const char *, size_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::write>,
- fuseCall<const char *, struct statvfs *>::helper<&FuseAppBase::statfs>,
- fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::flush>,
- fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::release>,
- fuseCall<const char *, int, struct fuse_file_info *>::helper<&FuseAppBase::fsync>,
- fuseCall<const char *, const char *, const char *, size_t, int>::helper<&FuseAppBase::setxattr>,
- fuseCall<const char *, const char *, char *, size_t>::helper<&FuseAppBase::getxattr>,
- fuseCall<const char *, char *, size_t>::helper<&FuseAppBase::listxattr>,
- fuseCall<const char *, const char *>::helper<&FuseAppBase::removexattr>,
- fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::opendir>,
- fuseCall<const char *, void *, fuse_fill_dir_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::readdir>,
- fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::releasedir>,
- fuseCall<const char *, int, struct fuse_file_info *>::helper<&FuseAppBase::fsyncdir>,
- fuseInit,
- fuseDestroy,
- fuseCall<const char *, int>::helper<&FuseAppBase::access>,
- fuseCall<const char *, mode_t, struct fuse_file_info *>::helper<&FuseAppBase::create>,
- fuseCall<const char *, off_t, struct fuse_file_info *>::helper<&FuseAppBase::ftruncate>,
- fuseCall<const char *, struct stat *, struct fuse_file_info *>::helper<&FuseAppBase::fgetattr>
-#if (FUSE_MINOR_VERSION >= 6)
- ,
- fuseCall<const char *, struct fuse_file_info *, int, struct flock *>::helper<&FuseAppBase::lock>,
- fuseCall<const char *, const struct timespec [2]>::helper<&FuseAppBase::utimens>,
- fuseCall<const char *, size_t, uint64_t *>::helper<&FuseAppBase::bmap>
-#if (FUSE_MINOR_VERSION >= 8)
- ,
- 0, // flag_nullpath_ok
-#if (FUSE_MINOR_VERSION >= 9)
- 0, // flag_nopath
- 0, // flag_utime_omit_ok
-#endif
- 0, // flag_reserved
- fuseCall<const char *, int, void *, struct fuse_file_info *, unsigned int, void *>::helper<&FuseAppBase::ioctl>,
- fuseCall<const char *, struct fuse_file_info *, struct fuse_pollhandle *, unsigned *>::helper<&FuseAppBase::poll>
-#if (FUSE_MINOR_VERSION >= 9)
- ,
- 0, //fuseCall<const char *, struct fuse_bufvec *, off_t, struct fuse_file_info *>::helper<&FuseAppBase::write_buf>,
- 0, //fuseCall<const char *, struct fuse_bufvec **, size_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::read_buf>,
- fuseCall<const char *, struct fuse_file_info *, int>::helper<&FuseAppBase::flock>,
- NULL // fallocate
-#endif
-#endif
-#endif
- };
struct fuse_args args = FUSE_ARGS_INIT(argc, argv);
if (fuse_opt_parse(&args, fuseApp, fuse_opts,
fuseCall<void *, const char *, int, struct fuse_args *>::helper<&FuseAppBase::opt_parse>) == -1) {
exit(1);
}
- return fuse_main(args.argc, args.argv, &operations, fa);
+ return args;
}
diff --git a/libfusepp/fuseapp.h b/libfusepp/fuseapp.h
index 1c94f13..bb18c02 100644
--- a/libfusepp/fuseapp.h
+++ b/libfusepp/fuseapp.h
@@ -3,7 +3,10 @@
#define FUSE_USE_VERSION 26
#include <fuse.h>
+#include <typeinfo>
#include <exception>
+#include <stdio.h>
+#include <errno.h>
class FuseAppBase {
public:
@@ -47,12 +50,105 @@ class FuseAppBase {
virtual int bmap(const char *, size_t blocksize, uint64_t *idx);
virtual int ioctl(const char *, int cmd, void *arg, struct fuse_file_info *, unsigned int flags, void * data);
virtual int poll(const char *, struct fuse_file_info *, struct fuse_pollhandle *, unsigned *);
- virtual int write_buf (const char *, struct fuse_bufvec *buf, off_t off, struct fuse_file_info *);
- virtual int read_buf (const char *, struct fuse_bufvec **bufp, size_t size, off_t off, struct fuse_file_info *);
- virtual int flock (const char *, struct fuse_file_info *, int op);
+ virtual int write_buf(const char *, struct fuse_bufvec *buf, off_t off, struct fuse_file_info *);
+ virtual int read_buf(const char *, struct fuse_bufvec **bufp, size_t size, off_t off, struct fuse_file_info *);
+ virtual int flock(const char *, struct fuse_file_info *, int op);
+ virtual int fallocate(const char *, int, off_t, off_t, struct fuse_file_info *);
virtual int onError(const std::exception & err) throw();
- static int run(int &, char ** &, FuseAppBase *);
+#define IFIMPL(func) typeid(&FuseAppBase::func) == typeid(&FuseApp::func) ? NULL :
+ template <typename FuseApp>
+ static int run(int & argc, char** & argv, FuseApp * fa)
+ {
+ auto args = runint(argc, argv, fa);
+ struct fuse_operations operations = {
+ IFIMPL(getattr) fuseCall<const char *, struct stat *>::helper<&FuseAppBase::getattr>,
+ IFIMPL(readlink) fuseCall<const char *, char *, size_t>::helper<&FuseAppBase::readlink>,
+ NULL, // getdir deprecated
+ IFIMPL(mknod) fuseCall<const char *, mode_t, dev_t>::helper<&FuseAppBase::mknod>,
+ IFIMPL(mkdir) fuseCall<const char *, mode_t>::helper<&FuseAppBase::mkdir>,
+ IFIMPL(unlink) fuseCall<const char *>::helper<&FuseAppBase::unlink>,
+ IFIMPL(rmdir) fuseCall<const char *>::helper<&FuseAppBase::rmdir>,
+ IFIMPL(symlink) fuseCall<const char *, const char *>::helper<&FuseAppBase::symlink>,
+ IFIMPL(rename) fuseCall<const char *, const char *>::helper<&FuseAppBase::rename>,
+ IFIMPL(link) fuseCall<const char *, const char *>::helper<&FuseAppBase::link>,
+ IFIMPL(chmod) fuseCall<const char *, mode_t>::helper<&FuseAppBase::chmod>,
+ IFIMPL(chown) fuseCall<const char *, uid_t, gid_t>::helper<&FuseAppBase::chown>,
+ IFIMPL(truncate) fuseCall<const char *, off_t>::helper<&FuseAppBase::truncate>,
+ NULL, // utime deprecated
+ IFIMPL(open) fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::open>,
+ IFIMPL(read) fuseCall<const char *, char *, size_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::read>,
+ IFIMPL(write) fuseCall<const char *, const char *, size_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::write>,
+ IFIMPL(statfs) fuseCall<const char *, struct statvfs *>::helper<&FuseAppBase::statfs>,
+ IFIMPL(flush) fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::flush>,
+ IFIMPL(release) fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::release>,
+ IFIMPL(fsync) fuseCall<const char *, int, struct fuse_file_info *>::helper<&FuseAppBase::fsync>,
+ IFIMPL(setxattr) fuseCall<const char *, const char *, const char *, size_t, int>::helper<&FuseAppBase::setxattr>,
+ IFIMPL(getxattr) fuseCall<const char *, const char *, char *, size_t>::helper<&FuseAppBase::getxattr>,
+ IFIMPL(listxattr) fuseCall<const char *, char *, size_t>::helper<&FuseAppBase::listxattr>,
+ IFIMPL(removexattr) fuseCall<const char *, const char *>::helper<&FuseAppBase::removexattr>,
+ IFIMPL(opendir) fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::opendir>,
+ IFIMPL(readdir) fuseCall<const char *, void *, fuse_fill_dir_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::readdir>,
+ IFIMPL(releasedir) fuseCall<const char *, struct fuse_file_info *>::helper<&FuseAppBase::releasedir>,
+ IFIMPL(fsyncdir) fuseCall<const char *, int, struct fuse_file_info *>::helper<&FuseAppBase::fsyncdir>,
+ fuseInit,
+ fuseDestroy,
+ IFIMPL(access) fuseCall<const char *, int>::helper<&FuseAppBase::access>,
+ IFIMPL(create) fuseCall<const char *, mode_t, struct fuse_file_info *>::helper<&FuseAppBase::create>,
+ IFIMPL(fgetattr) fuseCall<const char *, off_t, struct fuse_file_info *>::helper<&FuseAppBase::ftruncate>,
+ IFIMPL(fgetattr) fuseCall<const char *, struct stat *, struct fuse_file_info *>::helper<&FuseAppBase::fgetattr>,
+#if (FUSE_MINOR_VERSION >= 6)
+ IFIMPL(lock) fuseCall<const char *, struct fuse_file_info *, int, struct flock *>::helper<&FuseAppBase::lock>,
+ IFIMPL(utimens) fuseCall<const char *, const struct timespec [2]>::helper<&FuseAppBase::utimens>,
+ IFIMPL(bmap) fuseCall<const char *, size_t, uint64_t *>::helper<&FuseAppBase::bmap>,
+#if (FUSE_MINOR_VERSION >= 8)
+ 0, // flag_nullpath_ok
+#if (FUSE_MINOR_VERSION >= 9)
+ 0, // flag_nopath
+ 0, // flag_utime_omit_ok
+#endif
+ 0, // flag_reserved
+ IFIMPL(ioctl) fuseCall<const char *, int, void *, struct fuse_file_info *, unsigned int, void *>::helper<&FuseAppBase::ioctl>,
+ IFIMPL(poll) fuseCall<const char *, struct fuse_file_info *, struct fuse_pollhandle *, unsigned *>::helper<&FuseAppBase::poll>,
+#if (FUSE_MINOR_VERSION >= 9)
+ IFIMPL(write_buf) fuseCall<const char *, struct fuse_bufvec *, off_t, struct fuse_file_info *>::helper<&FuseAppBase::write_buf>,
+ IFIMPL(read_buf) fuseCall<const char *, struct fuse_bufvec **, size_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::read_buf>,
+ IFIMPL(flock) fuseCall<const char *, struct fuse_file_info *, int>::helper<&FuseAppBase::flock>,
+ IFIMPL(fallocate) fuseCall<const char *, int, off_t, off_t, struct fuse_file_info *>::helper<&FuseAppBase::fallocate>,
+#endif
+#endif
+#endif
+ };
+ return fuse_main(args.argc, args.argv, &operations, fa);
+ }
+ private:
+ static struct fuse_args runint(int &, char ** &, FuseAppBase *);
+ static void * fuseInit(struct fuse_conn_info *conn);
+ static void fuseDestroy(void *);
+
+ template <typename... Args>
+ class fuseCall {
+ public:
+ template <int (FuseAppBase::*f)(Args...)>
+ static int helper(Args ... a)
+ {
+ try {
+ return (fuseApp->*f)(a...);
+ }
+ catch (const std::exception & ex) {
+ if (int rtn = fuseApp->onError(ex)) {
+ return rtn;
+ }
+ return helper<f>(a...);
+ }
+ catch (...) {
+ fprintf(stderr, "Unknown exception calling %s\n", typeid(f).name());
+ return -ENOSYS;
+ }
+ }
+ };
+
+ static FuseAppBase * fuseApp;
};
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 20:52:03 +0000