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Implement utime() along with a naive /bin/touch.

This synchronous approach to inodes is silly, obviously. I need to rework
it so that the in-memory CoreInode object is the canonical inode, and then
we just need a sync() that flushes pending changes to disk.
This commit is contained in:
Andreas Kling 2018-12-19 21:14:55 +01:00
parent e03d341615
commit 038d8641f9
22 changed files with 122 additions and 22 deletions

1
Userland/.gitignore vendored
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@ -21,3 +21,4 @@ ft2
strsignal
fgrep
mkdir
touch

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@ -19,7 +19,8 @@ OBJS = \
strsignal.o \
fgrep.o \
tty.o \
mkdir.o
mkdir.o \
touch.o
APPS = \
id \
@ -42,7 +43,8 @@ APPS = \
strsignal \
fgrep \
tty \
mkdir
mkdir \
touch
ARCH_FLAGS =
STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib -nostdinc
@ -125,6 +127,9 @@ strsignal: strsignal.o
mkdir: mkdir.o
$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
touch: touch.o
$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
.cpp.o:
@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

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@ -152,6 +152,8 @@ int do_dir(const char* path)
printf(" %10u ", st.st_size);
printf(" %10u ", st.st_mtime);
print_name(st, de->d_name, pathbuf);
printf("\n");

16
Userland/touch.cpp Normal file
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@ -0,0 +1,16 @@
#include <stdio.h>
#include <utime.h>
#include <sys/types.h>
int main(int argc, char** argv)
{
if (argc != 2) {
fprintf(stderr, "usage: touch <path>\n");
return 1;
}
int rc = utime(argv[1], nullptr);
if (rc < 0)
perror("utime");
return 0;
}