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Don't try to change the window name unless the pid of the process chosen has

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changed. Reduces CPU use.

osdep-* stuff is a bit horrible now but there we go :-/.
This commit is contained in:
Nicholas Marriott
2009-02-09 18:08:01 +00:00
parent 9d90d9ad70
commit c9cfc9a9f3
7 changed files with 83 additions and 54 deletions
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53
osdep-openbsd.c
View File

@ -1,4 +1,4 @@
/* $Id: osdep-openbsd.c,v 1.11 2009-02-08 12:31:02 nicm Exp $ */
/* $Id: osdep-openbsd.c,v 1.12 2009-02-09 18:08:01 nicm Exp $ */
/*
* Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@ -35,35 +35,36 @@
#define is_stopped(p) \
((p)->p_stat == SSTOP || (p)->p_stat == SZOMB || (p)->p_stat == SDEAD)
char *get_argv0(int, char *);
char *get_proc_argv0(pid_t);
int osdep_get_name(int, char *, pid_t *, char **);
char *osdep_get_argv0(pid_t);
char *
get_argv0(int fd, char *tty)
int
osdep_get_name(int fd, char *tty, pid_t *last_pid, char **name)
{
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PGRP, 0 };
struct stat sb;
size_t len;
struct kinfo_proc *buf, *newbuf;
struct proc *p, *bestp;
char *procname;
u_int i;
*name = NULL;
buf = NULL;
if (stat(tty, &sb) == -1)
return (NULL);
return (-1);
if ((mib[3] = tcgetpgrp(fd)) == -1)
return (NULL);
return (-1);
retry:
if (sysctl(mib, nitems(mib), NULL, &len, NULL, 0) == -1)
return (NULL);
return (-1);
len = (len * 5) / 4;
if ((newbuf = realloc(buf, len)) == NULL) {
free(buf);
return (NULL);
return (-1);
}
buf = newbuf;
@ -71,7 +72,7 @@ retry:
if (errno == ENOMEM)
goto retry;
free(buf);
return (NULL);
return (-1);
}
bestp = NULL;
@ -123,22 +124,30 @@ retry:
if (p->p_pid > bestp->p_pid)
bestp = p;
}
if (bestp != NULL) {
procname = get_proc_argv0(bestp->p_pid);
if (procname == NULL || *procname == '\0') {
free(procname);
procname = strdup(bestp->p_comm);
}
} else
procname = NULL;
}
if (bestp == NULL) {
free(buf);
return (-1);
}
if (bestp->p_pid == *last_pid) {
free(buf);
return (1);
}
*last_pid = bestp->p_pid;
*name = osdep_get_argv0(bestp->p_pid);
if (*name == NULL || **name == '\0') {
free(*name);
*name = strdup(bestp->p_comm);
}
free(buf);
return (procname);
return (0);
}
char *
get_proc_argv0(pid_t pid)
osdep_get_argv0(pid_t pid)
{
int mib[4] = { CTL_KERN, KERN_PROC_ARGS, 0, KERN_PROC_ARGV };
size_t size;