From a9dc04d6aa70bcbf20d28ed8cb9631afa7434a9e Mon Sep 17 00:00:00 2001
From: randomdan <randomdan@localhost>
Date: Thu, 22 Aug 2013 01:13:45 +0000
Subject: Only bind fuse wrappers into fuse_operations for functions that have
 overrides in a deriving class

---
 libfusepp/fuseapp.cpp | 98 ++++++---------------------------------------------
 1 file changed, 10 insertions(+), 88 deletions(-)

(limited to 'libfusepp/fuseapp.cpp')

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;
 }
 
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