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Be more clever about picking window name.

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This commit is contained in:
Nicholas Marriott
2009-01-26 22:57:20 +00:00
parent 4d7e555a48
commit 9cde0c2477
8 changed files with 173 additions and 36 deletions
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74
osdep-freebsd.c
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@ -1,4 +1,4 @@
/* $Id: osdep-freebsd.c,v 1.2 2009-01-20 22:17:53 nicm Exp $ */
/* $Id: osdep-freebsd.c,v 1.3 2009-01-26 22:57:19 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@ -19,7 +19,10 @@
#ifdef __FreeBSD__
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <err.h>
#include <errno.h>
@ -28,19 +31,80 @@
#include <string.h>
#include <unistd.h>
char *get_argv0(pid_t);
char *get_argv0(int, char *);
char *get_proc_argv0(pid_t);
#define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
char *
get_argv0(pid_t pgrp)
get_argv0(__attribute__ ((unused)) int fd, char *tty)
{
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_TTY, 0 };
struct stat sb;
size_t len;
struct kinfo_proc *buf, *newbuf, *p, *bestp;
char *procname;
u_int i;
buf = NULL;
if (stat(tty, &sb) == -1)
return (NULL);
mib[3] = sb.st_rdev;
retry:
if (sysctl(mib, nitems(mib), NULL, &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++) {
p = &buf[i];
if (bestp == NULL)
bestp = p;
if (p->ki_stat != SRUN && p->ki_stat != SIDL)
continue;
if (p->ki_estcpu < bestp->ki_estcpu)
continue;
if (p->ki_slptime > bestp->ki_slptime)
continue;
bestp = p;
}
procname = get_proc_argv0(bestp->ki_pid);
if (procname == NULL || *procname == '\0') {
free(procname);
procname = strdup(bestp->ki_comm);
}
free(buf);
return (procname);
}
char *
get_proc_argv0(pid_t pid)
{
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_ARGS, 0 };
size_t size;
char *args, *args2, *procname;
mib[3] = pid;
procname = NULL;
mib[3] = pgrp;
args = NULL;
size = 128;
while (size < SIZE_MAX / 2) {