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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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* process.c (process_lookup_pid): Fix leak in error case.
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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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* 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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* 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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* 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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* 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 --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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* 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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* procfs.c, procfs.h (procfs_node_chown,
procfs_node_chmod, procfs_node_chtype): New functions, encapsulate
access to some nn_stat fields.
* process.c (process_lookup_pid): Use procfs_node_chown instead
of direct access.
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* Makefile: Add libps to the $(LIBS).
* proclist.c, proclist.h: Embed the proc server port in a
ps_context structure. (proclist_make_node): Change to prototype to
allow for the possibility of error. Rename to proclist_create_node to
reflect the change and non-triviality.
* process.c, process.h: Revamp. Use a full-blown procstat
structure instead of just the procinfo fetched from the process
server. Use the additional data to complement [pid]/stat.
(process_lookup_pid): Get a ps_context structure instead of a port to
the process server.
* main.c (root_make_node): Convert to the new interface for
proclist_create_node.
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* process.c: Add a basic stat file.
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* process.c (process_make_node): Use the owner_uid from the
procinfo structure to set the owner of the created directory.
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* process.c, process.h (process_make_node): Make static,
include a procinfo structure into the node information.
(process_lookup_pid): New function, replaces process_make_node as the
outer interface, returns an error for non-existing processes.
* proclist.c (proclist_lookup): Convert to the new interface.
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* process.c, process.h: New files, implement a process
directory with cmdline and environ files.
* Makefile: Add the process module.
* proclist.c: Replace stub pid files with the real thing.
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