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Previously if strtol failed the previous configuration value would get
overwritten. Prevent this by storing the result in a temporary
variable and update the configuration if the argument was parsed
correctly and passed the sanity checks.
* procfs/main.c (argp_parser): Keep old configuration in case a
malformed value is encountered.
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Do not exit using error (1, ..) but gracefully handle the error using
argp_error. Also fix a typo ("the a user") while touching these lines.
* procfs/main.c (argp_parser): Proper error handling.
(argp_parser): Fix typo.
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7550343b09a94dc1c659ad74dc75b3b77e7ab0bc added a better way to set the permissions of that file,
so this old hack is not needed anymore.
* process.c (process_lookup_pid): Do not change the mode of ENTRIES[2].hook.
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* rootdir.c: Include <mach/gnumach.h> and <mach/vm_cache_statistics.h>.
(rootdir_gc_meminfo): Call vm_cache_statistics and return the VM cache size.
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Initial implementation of statfs reply, just returning the filesystem type and its id.
* netfs.c: Include <sys/statvfs.h> and <unistd.h>.
(netfs_attempt_statfs): Implement.
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Makefile (LIBS): Add -lfshelp
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jkoenig/master
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If a process changed its title to a multiword string, show only the first word
of it.
* process.c (args_filename_length): New function.
(process_file_gc_stat): Use args_filename_length.
(process_file_gc_status): Likewise.
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This branch supersedes the previous one.
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The Linux /proc fs shows only the file name of processes in the
`stat' and `status' files of every process directory, so adapt also
procfs to show process file names.
Add a new `args_filename` function, much similar to GNU's `basename'
but returning the original string also when the resulting file name
is an empty string.
* process.c (args_filename): New function.
(process_file_gc_stat): Wrap the `proc_stat_args' result with
`args_filename'.
(process_file_gc_status): Likewise.
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This reverts commit d9fc76bd4e8c9a459fad7152135b738496318415, as it breaks
/proc/pid/stat
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* process.c (process_lookup_pid): Set PSTAT_NO_MSGPORT flag.
* rootdir.c (get_boottime, get_idletime, rootdir_gc_cmdline): Set
PSTAT_NO_MSGPORT flag.
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* rootdir.c (rootdir_gc_meminfo): Add Buffers and Cached, set to 0.
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* procfs.c (procfs_make_ino): Use 2 rather than 42 as a temporary hack,
since 2 is the root's inode with ext2fs.
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* rootdir.c (get_boottime, get_idletime): replace KERNEL_PID with the
opt_kernel_pid command-line option.
* main.c (argp): Document the change.
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* dircat.c, dircat.h, main.c, main.h, netfs.c, process.c, process.h,
procfs.c, procfs.h, procfs_dir.c, procfs_dir.h, proclist.c,
proclist.h, rootdir.c, rootdir.h: Add copyright notices.
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* TODO: Add more entries.
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* rootdir.c: Add page breaks to separate sections and add header
comments for them.
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* rootdir.c (rootdir_gc_meminfo): Add swap information.
* TODO: Update.
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* Makefile: Change FOOFLAGS defaults to appropriate values when
$(PROFILE) is defined.
* rootdir.c: Add an "exit" file, which causes exit to be called
when looked up, so that profiling data can be written to disk.
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* process.c (process_lookup_pid): Fix leak in error case.
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This is necessary for top, for instance, which keeps some files open and
re-reads them regularly. As an extra bonus we can drop the refresh hack.
* procfs.c, procfs.h: Remove the refresh hack.
(procfs_refresh): New function, invalidates the cached contents.
* netfs.c (netfs_attempt_read, netfs_get_dirents): Call
procfs_refresh when the read is from offset 0.
* proclist.c (proclist_make_node): Remove the refresh hack.
* dircat.c (dircat_make_node): Likewise.
(dircat_get_contents): Use procfs_refresh to avoid keeping old data
from the component nodes.
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* process.c, rootdir.c: When converting timeval structures
into seconds or jiffies, make sure that floating point rounding errors
don't make the clock the result jump backwards on second boundaries.
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* rootdir.c: Replace INIT_PID by KERNEL_PID, for boot time and
idle time purposes. (get_idletime): New function, queries the
kernel's idle thread. (rootdir_gc_uptime, rootdir_gc_stat): Use the
new function and provide the real idle time.
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* process.c: Reorder some of the code. Improve comments.
Jiffies and clock tick are the same thing, right? Replace the stat
mode and cleanup hacks by more straightforward solutions.
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* procfs_dir.c, procfs_dir.h: Revamp the interface to make
the more complicated use cases somewhat less hackish.
* process.c: Update, specify a default make_node function.
* rootdir.c: Likewise; make this optional "self" link use case
somewhat less hackish.
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* dircat.c, dircat.h (dircat_make_node): Use an explicit
array size for DIRS, fail with ENOMEM is any of them is NULL, and
release the reference on the non-NULL nodes on any error.
* main.c (root_make_node): Use the new interface.
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* procfs.h: Make CONTENTS_LEN an ssize_t rather than a size_t,
and document the change.
* procfs.c (procfs_get_contents): Initialize CONTENTS_LEN to a
negative value, and fail with ENOMEM if it's still negative after the
callback returns. (everywhere): Update to ssize_t.
* dircat.c, netfs.c, process.c,
procfs_dir.c, proclist.c, rootdir.c: Update to
ssize_t and the new GET_CONTENTS semantics.
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* procfs.h (procfs_cleanup_contents_with_free,
procfs_cleanup_contents_with_vm_deallocate, procfs_get_contents,
struct procfs_ops): Change CONTENTS from a void pointer to a char one.
* dircat.c, netfs.c, process.c, procfs.c,
procfs_dir.c, proclist.c, rootdir.c: Update.
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* procfs_file.c, procfs_file.h: Remove.
* Makefile: Remove procfs_file.
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* main.c (argp_parser): New option --anonymous-owner.
* main.h: Publish it.
* process.c (process_lookup_pid): Use it to set the file owner
uid of non-owned processes.
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* proclist.c, proclist.h (proclist_create_node): Use a
ps_context passed by the caller; errors are no longer possible, rename
to proclist_make_node and change the signature accordingly.
* rootdir.c, rootdir.h (rootdir_create_node): Likewise.
* main.c (main): Create the ps_context here and pass it to
root_make_node. (root_make_node): Pass it to proclist_make_node and
rootdir_make_node.
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* TODO: New file.
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* main.c: Don't call netfs_server_loop repeatedly; it should
never return.
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* main.c (main): Handle errors from argp_parse and
root_make_node.
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* main.c (argp_parser): Add --compatible, which sets the options
required for compatibility with the procps tools.
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* process.c: Add a status file.
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* process.c: Add the statm file.
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* main.c (argp_parser, main): Add the --kernel-pid option.
* main.h: Publish it.
* rootdir.c (rootdir_gc_cmdline): New function.
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* rootdir.c: Add a (non-empty) meminfo and a vmstat file.
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* main.c (argp_parse, main): Add the --fake-self option.
* main.h: Publish it.
* rootdir.c (rootdir_gc_fakeself, rootdir_entries,
rootdir_create_node): Use it.
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* main.c (argp_parser, main): Add the --stat-mode option.
* process.c (process_lookup_pid): Use it.
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* main.c (argp_parser, main): Add and parse the --clk-tck option.
* main.h: Publish opt_clk_tck.
* process.c (sc_tc): Use the user-provided clock frequency.
* rootdir.c (rootdir_gc_stat): Likewise.
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* rootdir.c (rootdir_gc_uptime, rootdir_gc_stat): assume a
completely idle rather than completely busy system, so that the idle
seconds can be meaningfully divided by the idle jiffies by procps.
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* rootdir.c: Add "meminfo", empty for now.
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* rootdir.c: Add a fake "self" symlink which always points to
init.
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* rootdir.c: Add the root file "loadavg".
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* rootdir.c, rootdir.h: New files.
* main.c: Use rootdir_create_node.
* Makefile: Add the rootdir module.
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* process.c (process_file_make_node, entries): Set the environ
and stat files as readable only by the owner of the process.
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