circlecloud/tmux
1
0
Fork 0
mirror of https://github.com/tmux/tmux.git synced 2024-11-10 13:48:48 +00:00
Code Issues Projects Releases Wiki Activity

Apparently NetBSD's tcgetpgrp is good enough to use, so don't need to play

Browse Source 
complicated games, from Roy Marples.
This commit is contained in:
Nicholas Marriott 2009-06-26 15:54:52 +00:00
parent de2ea2d178
commit 1aaf47e698
1 changed files with 13 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

94
osdep-netbsd.c
View File

@ -1,3 +1,5 @@
/* $Id: osdep-netbsd.c,v 1.4 2009-06-26 15:54:52 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
*
@ -16,13 +18,8 @@
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
@ -30,91 +27,26 @@
#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
#endif
#define is_runnable(p) \
((p)->p_stat == LSRUN || (p)->p_stat == SIDL)
#define is_stopped(p) \
((p)->p_stat == LSSTOP || (p)->p_stat == SZOMB)
char *osdep_get_name(int, char *);
char *
osdep_get_name(int fd, char *tty)
osdep_get_name(int fd, __unused char *tty)
{
int mib[4] = { CTL_KERN, KERN_PROC2, KERN_PROC_PGRP, 0 };
struct stat sb;
int mib[6];
size_t len;
struct kinfo_proc2 *buf, *newbuf, *p, *bestp;
u_int i;
char *name;
struct kinfo_proc2 p;
buf = NULL;
if (stat(tty, &sb) == -1)
return (NULL);
if ((mib[3] = tcgetpgrp(fd)) == -1)
return (NULL);
retry:
if (sysctl(mib, nitems(mib), NULL, &len, NULL, 0) == -1)
len = sizeof(p);
mib[0] = CTL_KERN;
mib[1] = KERN_PROC2;
mib[2] = KERN_PROC_PID;
mib[4] = sizeof(p);
mib[5] = 1;
if (sysctl(mib, nitems(mib), &p, &len, NULL, 0) == -1)
return (NULL);
len = (len * 5) / 4;
if ((newbuf = realloc(buf, len)) == NULL) {
free(buf);
return (NULL);
}
buf = newbuf;
if (sysctl(mib, nitems(mib), buf, &len, NULL, 0) == -1) {
if (errno == ENOMEM)
goto retry;
free(buf);
return (NULL);
}
bestp = NULL;
for (i = 0; i < len / sizeof (struct kinfo_proc); i++) {
if (buf[i].p_tdev != sb.st_rdev)
continue;
p = &buf[i];
if (bestp == NULL) {
bestp = p;
continue;
}
if (is_runnable(p) && !is_runnable(bestp))
bestp = p;
else if (!is_runnable(p) && is_runnable(bestp))
continue;
if (!is_stopped(p) && is_stopped(bestp))
bestp = p;
else if (is_stopped(p) && !is_stopped(bestp))
continue;
if (p->p_estcpu > bestp->p_estcpu)
bestp = p;
else if (p->p_estcpu < bestp->p_estcpu)
continue;
if (p->p_slptime < bestp->p_slptime)
bestp = p;
else if (p->p_slptime > bestp->p_slptime)
continue;
if (strcmp(p->p_comm, p->p_comm) < 0)
bestp = p;
else if (strcmp(p->p_comm, p->p_comm) > 0)
continue;
if (p->p_pid > bestp->p_pid)
bestp = p;
}
name = NULL;
if (bestp != NULL)
name = strdup(bestp->p_comm);
free(buf);
return (name);
return (strdup(p.p_comm));
}