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2011-01-30fiemap.h: include <stdint.h>, not <linux/types.h>Jim Meyering
* src/fiemap.h: Include stdint.h, not linux/types.h, now that this file uses only portable type names.
2011-01-30copy.c: ensure proper alignment of fiemap bufferPaul Eggert
* src/copy.c (fiemap_copy): Ensure that our fiemap buffer is large enough and well-aligned. Replace "0LL" with equivalent "0" as 3rd argument to lseek.
2011-01-30copy.c: adjust comments, tweak semanticsJim Meyering
* src/copy.c (fiemap_copy): Rename from fiemap_copy_ok. Add/improve comments. Remove local, "fail". (fiemap_copy): Do not require caller to set "normal_copy_required" before calling fiemap_copy. Report ioctl failure if it's the 2nd or subsequent call.
2011-01-30cp: copy sparse files efficiently using the FIEMAP ioctlJie Liu
* src/fiemap.h: Add fiemap.h for fiemap ioctl(2) support. Copied from linux's include/linux/fiemap.h, with minor formatting changes. * src/copy.c (copy_reg): Now, when `cp' is invoked with --sparse=[WHEN], we will try to do FIEMAP-copy if the underlying file system supports it, and fall back to a normal copy if it fails.
2011-01-29join: don't report disorder against an empty filePádraig Brady
This allows one to use join as a field extractor like: join -a1 -o 1.3,1.1 - /dev/null * src/join.c (join): Don't flag unpairable lines when one of the files is empty. * tests/misc/join: Add a new test for empty input, and adjust a previous test that was only checking against empty input. * doc/coreutils.texi (join invocation): Document the change. * NEWS: Likewise.
2011-01-29join: ensure --header skips the order check with empty filesPádraig Brady
* src/join.c: Skip the header even if one of the files is empty. * tests/misc/join: Add a test case. * NEWS: Mention the fix
2011-01-29join: add -o 'auto' to output a constant number of fields per linePádraig Brady
Lines with a different number of fields than the first line, will be truncated or padded. * src/join.c (prfields): A new function refactored from prjoin(), to output all but the join field. (prjoin): Don't swap line1 and line2 when line1 is blank so that the padding is applied to the right place. (main): Handle the -o 'auto' option. * tests/misc/join: Add 6 new cases to test the auto format. * NEWS: Mention the change in behavior. Suggestion from Assaf Gordon
2011-01-24split: avoid a new, spurious warning from gcc-4.6.0Jim Meyering
* src/split.c (lines_rr) [IF_LINT]: Initialize files, now that rawhide's gcc-4.6.0 would otherwise warn about use-uninitialized.
2011-01-24tail: avoid new diagnostic when applying -f to a pipe on linux-2.3.38Jim Meyering
* src/tail.c (fremote): Do not print a diagnostic when fstatfs (pipe_FD, &buf) fails, as it now does on linux-2.3.38. This avoids the spurious failure of tests/misc/tail's f-pipe-1 test, when running in input-from-pipe mode.
2011-01-17uniq: replace a wasteful loop with simple calculationJim Meyering
* src/uniq.c (find_field): Remove the byte-skipping loop altogether. Instead, perform the simple calculation. This results in a 10% performance improvement for large byte offsets.
2011-01-17uniq: don't continue field processing after end of lineSami Kerola
* NEWS (Bug fixes): Mention it. * src/uniq.c (find_field): Stop processing loop when end of line is reached. Before this fix, 'uniq -f 10000000000 /etc/passwd' would run for a very long time.
2011-01-14maint: refactor to use read-file from gnulibPádraig Brady
* bootstrap.conf: Add the read-file module * src/ptx.c: Replace the original code which would needlessly read SIZE_MAX bytes of files larger than this. * src/shuf.c: Replace the original code.
2011-01-13maint: trivial system header file cleanupsPádraig Brady
* src/system.h: Note where it should be included, and make ordering check portable to GLIBC > 2 * src/copy.c: Move <sys/ioctl.h> along with other system headers as is done elsewhere. * src/install.c: Move <sys/wait.h> along with other system headers as is done elsewhere. * src/ptx.c: Include <regex.h> rather than "regex.h" as is done elsewhere. Note <regex.h> is kept after "system.h" as per commit dba300a0.
2011-01-11rm: ignore errno related to invalid file namesNadav Har'El
* src/remove.c (nonexistent_file_errno): Also skip EINVAL and EILSEQ, for at least smbfs rejection of '*' in file names. * NEWS: Mention the fix.
2011-01-10du: don't abort when a subdir is renamed during traversalJim Meyering
* NEWS (Bug fixes): Mention it. * src/du.c (prev_level): Move declaration "up" to file-scope global. (du_files): Reset prev_level to 0 upon abnormal fts_read termination. Reported by Johathan Nieder in http://bugs.debian.org/609049 Also, improve a diagnostic. * tests/du/move-dir-while-traversing: Test for the above. * tests/Makefile.am (TESTS): Add it.
2011-01-07maint: suppress some clang scan-build warningsPádraig Brady
* src/pr.c (char_to_clump): Remove a dead store. * src/remove.c (fts_skip_tree): Likewise. * src/sort.c (key_warnings): Likewise. (sort): Suppress an uninitialized pointer warning.
2011-01-07maint: replace uses of ignore_ptr with ignore_valuePádraig Brady
* gnulib: Update for enhanced ignore_value() * src/chcon.c (process_file): Don't use the deprecated ignore_ptr. * src/chmod.c (process_file): Likewise. * src/chown-core.c (change_file_owner): Likewise.
2011-01-01maint: update all copyright year number rangesJim Meyering
Run "make update-copyright".
2010-12-30split: fix the suffix length calculationPádraig Brady
* src/split.c (set_suffix_length): Only auto-calculate the suffix length when the number of files is specified. * tests/misc/split-a: Add a case to trigger the bug, and exercise the suffix length auto-calculation. * NEWS: Mention the fix. Reported by Dmitry V. Levin and Sergey Vlasov at https://bugzilla.altlinux.org/show_bug.cgi?id=24841
2010-12-28coreutils: keep lines within 80-column limitsPaul Eggert
* cfg.mk (LINE_LEN_MAX, FILTER_LONG_LINES): New macros. (sc_long_lines): New rule. * HACKING: Use shorter URLs to the same material. * doc/Makefile.am, doc/coreutils.texi, m4/boottime.m4: * man/help2man, man/stdbuf.x, src/Makefile.am, src/cat.c, src/copy.c: * src/cp.c, src/dd.c, src/df.c, src/du.c, src/groups.c, src/install.c: * src/ls.c, src/md5sum.c, src/mv.c, src/od.c, src/pinky.c, src/ptx.c: * src/readlink.c, src/remove.c, src/rmdir.c, src/setuidgid.c: * src/sort.c, src/tail.c, src/touch.c, tests/Coreutils.pm: * tests/cp/existing-perm-race, tests/cp/perm, tests/cp/preserve-gid: * tests/du/2g, tests/du/long-from-unreadable, tests/init.sh: * tests/install/basic-1, tests/ls/nameless-uid: * tests/ls/readdir-mountpoint-inode, tests/misc/chroot-credentials: * tests/misc/cut, tests/misc/date, tests/misc/join, tests/misc/md5sum: * tests/misc/sha1sum, tests/misc/sha224sum, tests/misc/sort: * tests/misc/sort-continue, tests/misc/sort-files0-from: * tests/misc/sort-rand, tests/misc/stdbuf, tests/misc/tr: * tests/misc/uniq, tests/mv/atomic, tests/mv/part-fail: * tests/mv/part-symlink, tests/mv/sticky-to-xpart, tests/pr/pr-tests: * tests/rm/fail-2eperm, tests/rm/interactive-always: Reformat to fit within 80 columns. * doc/Makefile.am (BAD_POSIX_PERL): New macro. * doc/coreutils.texi: Reword slightly, to make menus and index lines shorter. * src/md5sum.c: Redo --help output so that it fits within 79 columns, since that's a bit more portable and all the other --help strings fit in 79 columns.
2010-12-24maint: avoid syntax-check failure due to unused #includeJim Meyering
* src/getlimits.c: Don't include "c-ctype.h"; no longer used.
2010-12-23csplit: diagnose file counter wraparoundPaul Eggert
* src/csplit.c (create_output_file): Detect overflow when the file counter wraps around, and exit with a diagnostic. Formerly the code silently wrapped around and wrote to the wrong file, losing output data.
2010-12-22sort: minor performance tweak with num_processorsPaul Eggert
* src/sort.c (main): Don't invoke num_processors twice.
2010-12-22getlimits: port to hosts with very wide int, or non-ASCIIPaul Eggert
* src/getlimits.c (decimal_ascii_add): Remove, replacing with ... (decimal_absval_add_one): New function, with different signature, which does not assume ASCII. All callers changed. (print_int): Remove assumptions that integers fit in 206 bits, and that characters are ASCII. These assumptions are portable in practice but are easy to remove here.
2010-12-20who: omit useless definitions of MAXHOSTNAMELENPaul Eggert
This prevents a compilation failure on Solaris 8, GCC 4.4.2, with "configure --enable-gcc-warnings". * src/who.c (MAXHOSTNAMELEN): Remove; no longer needed. * src/pinky.c: Likewise.
2010-12-20maint: fix a typo in sort --parallel help messagePádraig Brady
Also fix up Chen Guo's contacts * src/sort.c (usage): Add a missing "of" * THANKS: Add Chen Guo * .mailmap: Add Chen Guo's UCLA address
2010-12-19wc: fix a possible hang with --files0-fromPádraig Brady
* src/wc.c (main): exit when we get a read error on the --files0-from file, rather than retrying and spinning the CPU
2010-12-19cp: ensure backups are created when -T specifiedPádraig Brady
* src/cp.c (do_copy): When -T is specified, initialize the NEW_DST and SB variables, which are checked when running: cp -T --force --backup file file * tests/cp/backup-1: Add the -T case
2010-12-19sort: use at most 8 threads by defaultPádraig Brady
* src/sort.c (main): If --parallel isn't specified, restrict the number of threads to 8 by default. If the --parallel option is specified, then allow any number of threads to be set, independent of the number of processors on the system. * doc/coreutils.texi (sort invocation): Document the changes to determining the number of threads to use. Mention the memory overhead when using multiple threads. * tests/misc/sort-spinlock-abuse: Allow single core systems that support pthreads. * tests/misc/sort-stale-thread-mem: Likewise. * tests/misc/sort-unique-segv: Likewise. * NEWS: Mention the change in behaviour.
2010-12-16sort: do not generate thousands of subprocesses for 16-way mergePaul Eggert
Without this change, tests/misc/sort-compress-hang would consume more than 10,000 process slots on my RHEL 5.5 x86-64 server, making it likely for other applications to fail due to lack of process slots. With this change, the same benchmark causes 'sort' to consume at most 19 process slots. The change also improved wall-clock time by 2% and user+system time by 14% on that benchmark. * NEWS: Document this. * src/sort.c (MAX_PROCS_BEFORE_REAP): Remove. (reap_exited): Renamed from reap_some; this is a more accurate name, since "some" incorrectly implies that it reaps at least one process. All uses changed. (reap_some): New function: it *does* reap at least one process. (pipe_fork): Do not allow more than NMERGE + 2 subprocesses. (mergefps, sort): Omit check for exited processes: no longer needed, and anyway the code consumed too much CPU per line when 2 < nprocs.
2010-12-16sort: fix hang with sort --compressPaul Eggert
* NEWS: Document this. * src/sort.c (UNCOMPRESSED, UNREAPED, REAPED): New constants. (struct tempnode): New member 'state', to hold these constants. The pid member is now undefined if state == UNCOMPRESSED. (struct sortfile): Replace member 'pid' with member 'temp'. (uintptr): Remove. (proctab_hasher, proctab_comparator, register_proc, delete_proc): Proctab entries are now struct tempnode *, not pid_t, to handle the case where multiple tempnode objects correspond to the same pid. This avoids a race condition that can cause a hang. (register_proc): Arg is now struct tempnode *, not pid_t. All callers changed. (delete_proc): Set tempnode state to REAPED. (create_temp_file): No need to set pid member here; it's now done when the pid is known. (maybe_create_temp, create_temp): Remove PPID arg. Return struct tempnode *, not char *. All callers changed. (maybe_create_temp): Set node state to UNCOMPRESSED or UNREAPED. No need to set node->pid to 0. (open_temp): Replace NAME and PID args with a single TEMP arg. All callers changed. Wait only for unreaped children. (zaptemp): Wait for decompressor to finish before removing its temporary-file input. This avoids .nfsXXXX hassles with NFS and fixes a race (leading to a hang) regardless of NFS. (open_input_files): Adjust to new way of dealing with temp files and their subprocesses. * tests/Makefile.am (TESTS): Add misc/sort-compress-hang. * tests/misc/sort-compress-hang: New file.
2010-12-16sort: don't dump core when merging from input twicePaul Eggert
* NEWS: Document this. * src/sort.c (avoid_trashing_input): The previous fix to this function didn't fix all the problems with this code. Replace it with something simpler: just copy the input file. This doesn't change the number of files, so return void instead of the updated file count. Caller changed. * tests/misc/sort-merge-fdlimit: Test for the bug.
2010-12-14doc: tail: semi-deprecate --sleep-interval and --max-unchanged-statsJim Meyering
Those options are useful only on systems that lack inotify support and in the unusual event that a system with inotify support must resort to polling. * src/tail.c (usage): Note that the --max-unchanged-stats=N and --sleep-interval=N options are rarely useful on systems with inotify support. * doc/coreutils.texi (tail invocation): Likewise.
2010-12-14sort: fix very-unlikely buffer overrun when merging to input filePaul Eggert
* src/sort.c (avoid_trashing_input): Fix a typo that could cause a buffer overrun in theory. In practice this is extremely unlikely, as it requires running out of file descriptors in a small merge, presumably because some other process is hogging all the OS's file descriptors.
2010-12-13sort: fix some --compress reaper bugsPaul Eggert
* src/sort.c (uintptr): New type. (enum procstate, struct procnode, update_proc): Remove. (proctab_hasher, proctab_comparator, register_proc, wait_proc): (reap_some): The proctab is now simply a hash of process-IDs rather than of pointers to objects with reference counts and states; this is smaller and faster and easier to understand. (nprocs): Now pid_t, not size_t, since one cannot have more than PID_MAX children. (reap): If the argument is -1, wait; if 0 (a new value), do not. Delete pid from proctab as needed. Ignore children that are not in proctab, as they are from the program that exec'ed us and are irrelevant to our success or failure. (delete_proc, reap_all): New functions. (open_temp): Register the child. (sort): Clean up all children afterwards; without this patch, 'sort' sometimes missed failures in children due to race conditions. * tests/Makefile.am (TESTS): Add misc/sort-compress-proc. * tests/misc/sort-compress-proc: New file, to test for the bugs fixed above.
2010-12-11sort: syntax cleanupJim Meyering
* src/sort.c (xfopen, debug_key, sortlines, sort, main): Adjust formatting: fix misplaced braces, use consistent spacing, split a 2-stmt line.
2010-12-11sort: integer overflow checks in thread counts, etc.Paul Eggert
* src/sort.c (specify_nthreads, merge_tree_init, init_node): (queue_init, sortlines, struct thread_args, sort, main): Use size_t, not unsigned long int, for thread counts, since thread counts are now used to compute sizes. (specify_nthreads): Check for size_t overflow. (merge_tree_init, sort): Shorten name of local variable, for readability. (merge_tree_init): Move constants next to each other in product, so that the constant folding is easier to see. (init_node): Now static. Add 'restrict' only where it might be helpful for compiler optimization. (queue_init): 2nd arg is now nthreads, not "reserve", which is a bit harder to follow. All uses changed. (struct thread_args): Rename lo_child to is_lo_child, so that it's obvious to the reader when we're talking about this boolean as opposed to the new lo_child member of the other structure. All uses changed. (sort): Remove unused local variable end_node. (main): Don't allow large thread counts to cause undefined behavior later, due to integer overflow.
2010-12-11sort: preallocate merge tree nodes to heap.Chen Guo
* src/sort.c: (merge_tree_init) New function. Allocates memory for merge tree nodes. (merge_tree_destory) New function. (init_node) New function. (sortlines) Refactor node creation code to init_node. Remove now superfluous arguments. All callers changed. (sort) Initialize/destory merge tree. Refactor root node creation to merge_tree_init.
2010-12-11sort: comment fixPaul Eggert
* src/sort.c: Comment fix re spin locks.
2010-12-11sort: use mutexes, not spinlocks (avoid busy loop on blocked output)Chen Guo
Running a command like this on a multi-core system sort < big-file | less would peg all processors at near 100% utilization. * src/sort.c: (struct merge_node) Change member lock to mutex. All uses changed. * tests/Makefile.am (XFAIL_TESTS): Remove definition, now that this test passes once again. I.e., the sort-spinlock-abuse test no longer fails. * NEWS (Bug reports): Mention this. Reported by DJ Lucas in http://debbugs.gnu.org/7489.
2010-12-08split: fix a case where --elide-empty causes invalid chunkingPádraig Brady
When -n l/N is used and long lines are present that both span partitions and multiple buffers, one would get inconsistent chunk sizes. * src/split.c (main): Add a new undocumented ---io-blksize option to support full testing with varied buffer sizes. (cwrite): Refactor most handling of --elide-empty to here. (bytes_split): Remove handling of --elide-empty. (lines_chunk_split): Likewise. The specific issue here was the first handling of elide_empty_files interfered with the replenishing of the input buffer. * test/misc/split-lchunk: Add -e and the new ---io-blksize combinations to the test.
2010-12-03sort: merge_queue -> queuePaul Eggert
* src/sort.c (struct thread_args, sortlines_thread, sortlines, sort): Rename "merge_queue" to "queue", for consistency with other functions that just use the name "queue" for these things.
2010-12-03sort: clarify queue_check_insertPaul Eggert
* src/sort.c (queue_check_insert): Clarify body a bit, and remove no-longer-needed comment.
2010-12-03sort: fix problems with merge node dest pointerPaul Eggert
* src/sort.c (mergelines_node): Return void, not size_t. All callers changed. Change *node->dest here, not in caller. Do not change node->dest: it's not needed and could cause problems on (mostly theoretical) hosts that do not allow adding integers to null pointers. (queue_check_insert_parent): Omit MERGED parameter; no longer needed. All callers changed.
2010-12-03sort: simplify write_uniquePaul Eggert
* src/sort.c (write_unique): Simplify slightly so that there is just one call to write_line, not two.
2010-12-03sort: put queue arg firstPaul Eggert
* src/sort.c (queue_check_insert, queue_check_insert_parent): Make the queue arg first, for consistency with other functions such as queue_insert that put the queue arg first. Rename from check_insert and update_parent, respectively. All callers changed.
2010-12-03sort: tune struct_merge_node slightlyPaul Eggert
* src/sort.c (struct merge_node): 'lock' is now the actual lock, not a pointer to the lock; there's no need for indirection here. Make 'level' unsigned int instead of size_t, since it is a bit-shift count; also, move it next to a bool so that it's more likely to take less space. All uses changed. (sortlines, sort): Spell out initialization instead of using an initializer. This makes the initializer a bit easier to understand, and avoids unnecessary stores into the spin lock.
2010-12-03sort: Clarify commentsPaul Eggert
* src/sort.c: Improve comments a bit.
2010-12-01sort: fix bug on 64-bit hosts with at least 32768 processorsPaul Eggert
* src/sort.c (MAX_MERGE): Avoid integer overflow when on a machine with (say) 32-bit int and 64-bit size_t and when level == 15. Without this fix, on such a machine with 32768 or more processors, the level computation could overflow on large input, and this would result in division by zero.
2010-12-01sort -u: fix a thread-race pointer corruption bugPaul Eggert
* src/sort.c (write_unique): Save the entire "struct line", not just a pointer to one. Otherwise, with a multi-thread run, sometimes, with some inputs, fillbuf would would win a race and clobber a "saved->text" pointer in one thread just before it was dereferenced in a comparison in another thread. * NEWS (Bug fixes): Mention it.