mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 03:27:39 +00:00
ae5d06dc53
- 10.5% reduction of o//depend dependency graph
- 8.8% reduction in latency of make command
- Fix issue with temporary file cleanup
There's a new -w option in compile.com that turns off the recent
Landlock output path workaround for "good commands" which do not
unlink() the output file like GNU tooling does.
Our new GNU Make unveil sandboxing appears to have zero overhead
in the grand scheme of things. Full builds are pretty fast since
the only thing that's actually slowed us down is probably libcxx
make -j16 MODE=rel
RL: took 85,732,063µs wall time
RL: ballooned to 323,612kb in size
RL: needed 828,560,521µs cpu (11% kernel)
RL: caused 39,080,670 page faults (99% memcpy)
RL: 350,073 context switches (72% consensual)
RL: performed 0 reads and 11,494,960 write i/o operations
pledge() and unveil() no longer consider ENOSYS to be an error.
These functions have also been added to Python's cosmo module.
This change also removes some WIN32 APIs and System Five magnums
which we're not using and it's doubtful anyone else would be too
101 lines
3.2 KiB
C
101 lines
3.2 KiB
C
#if 0
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/*─────────────────────────────────────────────────────────────────╗
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│ To the extent possible under law, Justine Tunney has waived │
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│ all copyright and related or neighboring rights to this file, │
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│ as it is written in the following disclaimers: │
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│ • http://unlicense.org/ │
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│ • http://creativecommons.org/publicdomain/zero/1.0/ │
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╚─────────────────────────────────────────────────────────────────*/
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#endif
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#include "libc/calls/calls.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/errno.h"
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#include "libc/fmt/conv.h"
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#include "libc/fmt/fmt.h"
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#include "libc/log/check.h"
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#include "libc/log/log.h"
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#include "libc/runtime/gc.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/s.h"
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#include "libc/x/x.h"
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/**
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* @fileoverview File metadata viewer.
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*
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* This demonstrates the more powerful aspects of the printf() DSL.
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*/
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bool numeric;
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const char *DescribeFileType(unsigned mode) {
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switch (mode & S_IFMT) {
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case S_IFIFO:
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return "S_IFIFO"; /* pipe */
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case S_IFCHR:
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return "S_IFCHR"; /* character device */
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case S_IFDIR:
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return "S_IFDIR"; /* directory */
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case S_IFBLK:
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return "S_IFBLK"; /* block device */
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case S_IFREG:
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return "S_IFREG"; /* regular file */
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case S_IFLNK:
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return "S_IFLNK"; /* symbolic link */
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case S_IFSOCK:
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return "S_IFSOCK"; /* socket */
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default:
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return "wut";
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}
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}
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void PrintFileMetadata(const char *pathname, struct stat *st) {
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int fd;
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printf("\n%s:", pathname);
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if (numeric) {
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fd = atoi(pathname);
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CHECK_NE(-1, fstat(fd, st), "fd=%d", fd);
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} else {
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CHECK_NE(-1, stat(pathname, st), "pathname=%s", pathname);
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}
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printf("\n"
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"%-32s%,ld\n"
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"%-32s%,ld\n"
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"%-32s%#lx\n"
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"%-32s%#lx\n"
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"%-32s%ld\n"
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"%-32s%#o (%s)\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%d\n"
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"%-32s%ld\n"
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"%-32s%ld\n"
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"%-32s%s\n"
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"%-32s%s\n"
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"%-32s%s\n"
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"%-32s%s\n",
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"bytes in file", st->st_size, "physical bytes", st->st_blocks * 512,
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"device id w/ file", st->st_dev, "inode", st->st_ino,
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"hard link count", st->st_nlink, "mode / permissions", st->st_mode,
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DescribeFileType(st->st_mode), "owner id", st->st_uid, "group id",
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st->st_gid, "flags", st->st_flags, "gen", st->st_gen,
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"device id (if special)", st->st_rdev, "block size", st->st_blksize,
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"access time", _gc(xiso8601(&st->st_atim)), "modified time",
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_gc(xiso8601(&st->st_mtim)), "c[omplicated]time",
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_gc(xiso8601(&st->st_ctim)), "birthtime",
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_gc(xiso8601(&st->st_birthtim)));
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}
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int main(int argc, char *argv[]) {
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size_t i;
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struct stat st;
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for (i = 1; i < argc; ++i) {
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if (!strcmp(argv[i], "-n")) {
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numeric = true;
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} else {
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PrintFileMetadata(argv[i], &st);
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}
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}
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return 0;
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}
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