From ccd8dcd43f0c903a94367817a0a9e94034a5cce4 Mon Sep 17 00:00:00 2001
From: Zygo Blaxell <bees@furryterror.org>
Date: Thu, 4 Nov 2021 01:48:53 -0400
Subject: [PATCH] fiemap, fiewalk: drop dead example/test code

These tools are obsolete.  fiemap was a thin wrapper around FIEMAP,
but FIEMAP is not useful on btrfs.  fiewalk was a thin wrapper around
BtrfsExtentWalker, but development on BtrfsExtentWalker has been
abandoned.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
---
 src/Makefile   | 12 +----------
 src/fiemap.cc  | 55 --------------------------------------------------
 src/fiewalk.cc | 40 ------------------------------------
 3 files changed, 1 insertion(+), 106 deletions(-)
 delete mode 100644 src/fiemap.cc
 delete mode 100644 src/fiewalk.cc

diff --git a/src/Makefile b/src/Makefile
index b0d5367..997b8c8 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,11 +1,6 @@
 BEES = ../bin/bees
-PROGRAMS = \
-	../bin/fiemap \
-	../bin/fiewalk \
 
-PROGRAM_OBJS = $(foreach b,$(PROGRAMS),$(patsubst ../bin/%,%.o,$(b)))
-
-all: $(BEES) $(PROGRAMS)
+all: $(BEES)
 
 include ../makeflags
 -include ../localconf
@@ -51,11 +46,6 @@ include depends.mk
 %.o: %.cc ../makeflags
 	$(CXX) $(BEES_CXXFLAGS) -o $@ -c $<
 
-$(PROGRAMS): ../bin/%: %.o
-	$(CXX) $(BEES_CXXFLAGS) $(BEES_LDFLAGS) -o $@ $< $(LIBS)
-
-$(PROGRAMS): ../lib/libcrucible.a
-
 $(BEES): $(BEES_OBJS) bees-version.o bees-usage.o ../lib/libcrucible.a
 	$(CXX) $(BEES_CXXFLAGS) $(BEES_LDFLAGS) -o $@ $^ $(LIBS)
 
diff --git a/src/fiemap.cc b/src/fiemap.cc
deleted file mode 100644
index 2a2c0cf..0000000
--- a/src/fiemap.cc
+++ /dev/null
@@ -1,55 +0,0 @@
-#include "crucible/fd.h"
-#include "crucible/fs.h"
-#include "crucible/error.h"
-#include "crucible/string.h"
-
-#include <iostream>
-
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-using namespace crucible;
-using namespace std;
-
-int
-main(int argc, char **argv)
-{
-	catch_all([&]() {
-		THROW_CHECK1(invalid_argument, argc, argc > 1);
-		string filename = argv[1];
-
-	
-		cout << "File: " << filename << endl;
-		Fd fd = open_or_die(filename, O_RDONLY);
-		uint64_t start = 0;
-		uint64_t length = Fiemap::s_fiemap_max_offset;
-		if (argc > 2) { start = stoull(argv[2], nullptr, 0); }
-		if (argc > 3) { length = stoull(argv[3], nullptr, 0); }
-		length = min(length, Fiemap::s_fiemap_max_offset - start);
-		Fiemap fm(start, length);
-		fm.m_flags &= ~(FIEMAP_FLAG_SYNC);
-		fm.m_max_count = 100;
-		if (argc > 4) { fm.m_flags = stoull(argv[4], nullptr, 0); }
-		uint64_t stop_at = start + length;
-		uint64_t last_byte = start;
-		do {
-			fm.do_ioctl(fd);
-			// cerr << fm;
-			uint64_t last_logical = Fiemap::s_fiemap_max_offset;
-			for (auto &extent : fm.m_extents) {
-				if (extent.fe_logical > last_byte) {
-					cout << "Log " << to_hex(last_byte) << ".." << to_hex(extent.fe_logical) << " Hole" << endl;
-				}
-				cout << "Log " << to_hex(extent.fe_logical) << ".." << to_hex(extent.fe_logical + extent.fe_length)
-					<< " Phy " << to_hex(extent.fe_physical) << ".." << to_hex(extent.fe_physical + extent.fe_length)
-					<< " Flags " << fiemap_extent_flags_ntoa(extent.fe_flags) << endl;
-				last_logical = extent.fe_logical + extent.fe_length;
-				last_byte = last_logical;
-			}
-			fm.m_start = last_logical;
-		} while (fm.m_start < stop_at);
-	});
-	exit(EXIT_SUCCESS);
-}
-
diff --git a/src/fiewalk.cc b/src/fiewalk.cc
deleted file mode 100644
index 91b906b..0000000
--- a/src/fiewalk.cc
+++ /dev/null
@@ -1,40 +0,0 @@
-#include "crucible/extentwalker.h"
-#include "crucible/error.h"
-#include "crucible/string.h"
-
-#include <iostream>
-
-#include <fcntl.h>
-#include <unistd.h>
-
-using namespace crucible;
-using namespace std;
-
-int
-main(int argc, char **argv)
-{
-	catch_all([&]() {
-		THROW_CHECK1(invalid_argument, argc, argc > 1);
-		string filename = argv[1];
-
-		cout << "File: " << filename << endl;
-		Fd fd = open_or_die(filename, O_RDONLY);
-		BtrfsExtentWalker ew(fd);
-		off_t pos = 0;
-		if (argc > 2) { pos = stoull(argv[2], nullptr, 0); }
-		ew.seek(pos);
-		do {
-			// cout << "\n\n>>>" << ew.current() << "<<<\n\n" << endl;
-			cout << ew.current() << endl;
-		} while (ew.next());
-#if 0
-		cout << "\n\n\nAnd now, backwards...\n\n\n" << endl;
-		do {
-			cout << "\n\n>>>" << ew.current() << "<<<\n\n" << endl;
-		} while (ew.prev());
-		cout << "\n\n\nDone!\n\n\n" << endl;
-#endif
-	});
-	exit(EXIT_SUCCESS);
-}
-