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[Emacs-diffs] master ef4ed84: Implement process-attributes for Darwin
From: |
Lars Ingebrigtsen |
Subject: |
[Emacs-diffs] master ef4ed84: Implement process-attributes for Darwin |
Date: |
Sun, 24 Apr 2016 12:33:14 +0000 |
branch: master
commit ef4ed84e72a323b3d29dc34df92d3f89ad4fc322
Author: Magnus Henoch <address@hidden>
Commit: Lars Magne Ingebrigtsen <address@hidden>
Implement process-attributes for Darwin
* src/sysdep.c (timeval_to_timespec, make_lisp_timeval)
(system_process_attributes): Implement process-attributes
for Darwin (bug#16579).
---
etc/NEWS | 3 ++
src/sysdep.c | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 143 insertions(+)
diff --git a/etc/NEWS b/etc/NEWS
index 1ad8451..0a2641f 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -56,6 +56,9 @@ affected by this, as SGI stopped supporting IRIX in December
2013.
* Changes in Emacs 25.2
+--
+** `process-attributes' on Darwin systems now return more information.
+
+++
** A number of accessors for the value returned by 'file-attributes'
has been added. They are: 'file-attribute-type',
diff --git a/src/sysdep.c b/src/sysdep.c
index 3faa696..53affbf 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -3567,6 +3567,146 @@ system_process_attributes (Lisp_Object pid)
return attrs;
}
+#elif defined DARWIN_OS
+
+static struct timespec
+timeval_to_timespec (struct timeval t)
+{
+ return make_timespec (t.tv_sec, t.tv_usec * 1000);
+}
+
+static Lisp_Object
+make_lisp_timeval (struct timeval t)
+{
+ return make_lisp_time (timeval_to_timespec (t));
+}
+
+Lisp_Object
+system_process_attributes (Lisp_Object pid)
+{
+ int proc_id;
+ int pagesize = getpagesize ();
+ unsigned long npages;
+ int fscale;
+ struct passwd *pw;
+ struct group *gr;
+ char *ttyname;
+ size_t len;
+ char args[MAXPATHLEN];
+ struct timeval starttime;
+ struct timespec t, now;
+ struct rusage *rusage;
+ dev_t tdev;
+ uid_t uid;
+ gid_t gid;
+
+ int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PID};
+ struct kinfo_proc proc;
+ size_t proclen = sizeof proc;
+
+ Lisp_Object attrs = Qnil;
+ Lisp_Object decoded_comm;
+
+ CHECK_NUMBER_OR_FLOAT (pid);
+ CONS_TO_INTEGER (pid, int, proc_id);
+ mib[3] = proc_id;
+
+ if (sysctl (mib, 4, &proc, &proclen, NULL, 0) != 0)
+ return attrs;
+
+ uid = proc.kp_eproc.e_ucred.cr_uid;
+ attrs = Fcons (Fcons (Qeuid, make_fixnum_or_float (uid)), attrs);
+
+ block_input ();
+ pw = getpwuid (uid);
+ unblock_input ();
+ if (pw)
+ attrs = Fcons (Fcons (Quser, build_string (pw->pw_name)), attrs);
+
+ gid = proc.kp_eproc.e_pcred.p_svgid;
+ attrs = Fcons (Fcons (Qegid, make_fixnum_or_float (gid)), attrs);
+
+ block_input ();
+ gr = getgrgid (gid);
+ unblock_input ();
+ if (gr)
+ attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs);
+
+ decoded_comm = (code_convert_string_norecord
+ (build_unibyte_string (proc.kp_proc.p_comm),
+ Vlocale_coding_system, 0));
+
+ attrs = Fcons (Fcons (Qcomm, decoded_comm), attrs);
+ {
+ char state[2] = {'\0', '\0'};
+ switch (proc.kp_proc.p_stat)
+ {
+ case SRUN:
+ state[0] = 'R';
+ break;
+
+ case SSLEEP:
+ state[0] = 'S';
+ break;
+
+ case SZOMB:
+ state[0] = 'Z';
+ break;
+
+ case SSTOP:
+ state[0] = 'T';
+ break;
+
+ case SIDL:
+ state[0] = 'I';
+ break;
+ }
+ attrs = Fcons (Fcons (Qstate, build_string (state)), attrs);
+ }
+
+ attrs = Fcons (Fcons (Qppid, make_fixnum_or_float (proc.kp_eproc.e_ppid)),
+ attrs);
+ attrs = Fcons (Fcons (Qpgrp, make_fixnum_or_float (proc.kp_eproc.e_pgid)),
+ attrs);
+
+ tdev = proc.kp_eproc.e_tdev;
+ block_input ();
+ ttyname = tdev == NODEV ? NULL : devname (tdev, S_IFCHR);
+ unblock_input ();
+ if (ttyname)
+ attrs = Fcons (Fcons (Qtty, build_string (ttyname)), attrs);
+
+ attrs = Fcons (Fcons (Qtpgid, make_fixnum_or_float
(proc.kp_eproc.e_tpgid)),
+ attrs);
+
+ rusage = proc.kp_proc.p_ru;
+ if (rusage)
+ {
+ attrs = Fcons (Fcons (Qminflt, make_fixnum_or_float
(rusage->ru_minflt)),
+ attrs);
+ attrs = Fcons (Fcons (Qmajflt, make_fixnum_or_float
(rusage->ru_majflt)),
+ attrs);
+
+ attrs = Fcons (Fcons (Qutime, make_lisp_timeval (rusage->ru_utime)),
+ attrs);
+ attrs = Fcons (Fcons (Qstime, make_lisp_timeval (rusage->ru_stime)),
+ attrs);
+ t = timespec_add (timeval_to_timespec (rusage->ru_utime),
+ timeval_to_timespec (rusage->ru_stime));
+ attrs = Fcons (Fcons (Qtime, make_lisp_time (t)), attrs);
+ }
+
+ starttime = proc.kp_proc.p_starttime;
+ attrs = Fcons (Fcons (Qnice, make_number (proc.kp_proc.p_nice)), attrs);
+ attrs = Fcons (Fcons (Qstart, make_lisp_timeval (starttime)), attrs);
+
+ now = current_timespec ();
+ t = timespec_sub (now, timeval_to_timespec (starttime));
+ attrs = Fcons (Fcons (Qetime, make_lisp_time (t)), attrs);
+
+ return attrs;
+}
+
/* The WINDOWSNT implementation is in w32.c.
The MSDOS implementation is in dosfns.c. */
#elif !defined (WINDOWSNT) && !defined (MSDOS)
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