mirror of
https://github.com/Llewellynvdm/conky.git
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a3106fac72
git-svn-id: https://conky.svn.sourceforge.net/svnroot/conky/trunk/conky@57 7f574dfc-610e-0410-a909-a81674777703
109 lines
2.0 KiB
C
109 lines
2.0 KiB
C
/*
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* Conky, a system monitor, based on torsmo
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*
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* This program is licensed under BSD license, read COPYING
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*
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* $Id$
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*/
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#include "conky.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <fcntl.h>
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/* linux */
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#ifdef HAVE_SYS_STATFS_H
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#include <sys/statfs.h>
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#endif
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/* freebsd && netbsd */
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_SYS_MOUNT_H
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#include <sys/mount.h>
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#endif
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/* TODO: benchmark which is faster, fstatvfs() or pre-opened fd and
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* statvfs() (fstatvfs() would handle mounts I think...) */
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static struct fs_stat fs_stats_[64];
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struct fs_stat *fs_stats = fs_stats_;
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void update_fs_stats()
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{
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unsigned int i;
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struct statfs s;
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for (i = 0; i < 16; i++) {
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if (fs_stats[i].fd <= 0)
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break;
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fstatfs(fs_stats[i].fd, &s);
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fs_stats[i].size = (long long) s.f_blocks * s.f_bsize;
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/* bfree (root) or bavail (non-roots) ? */
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fs_stats[i].avail = (long long) s.f_bavail * s.f_bsize;
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}
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}
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void clear_fs_stats()
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{
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unsigned int i;
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for (i = 0; i < 16; i++) {
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if (fs_stats[i].fd) {
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close(fs_stats[i].fd);
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fs_stats[i].fd = -1;
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}
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if (fs_stats[i].path != NULL) {
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free(fs_stats[i].path);
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fs_stats[i].path = NULL;
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}
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}
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}
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struct fs_stat *prepare_fs_stat(const char *s)
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{
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unsigned int i;
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for (i = 0; i < 16; i++) {
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struct fs_stat *fs = &fs_stats[i];
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if (fs->path && strcmp(fs->path, s) == 0)
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return fs;
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if (fs->fd <= 0) {
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/* when compiled with icc, it crashes when leaving function and open()
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* is used, I don't know why */
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/* this icc workaround didn't seem to work */
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#if 0
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{
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FILE *fp = fopen(s, "r");
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if (fp)
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fs->fd = fileno(fp);
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else
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fs->fd = -1;
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}
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#endif
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fs->fd = open(s, O_RDONLY);
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if (fs->fd <= 0) { /* 0 isn't error but actually it is :) */
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ERR("open '%s': %s", s, strerror(errno));
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return 0;
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}
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fs->path = strdup(s);
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update_fs_stats();
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return fs;
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}
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}
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ERR("too many fs stats");
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return 0;
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}
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