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make iostats usable with sigar_disk_usage_t

This commit is contained in:
Doug MacEachern 2007-10-10 03:19:21 +00:00
parent 5e47762150
commit 3badfe1723
1 changed files with 34 additions and 35 deletions
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69
src/os/linux/linux_sigar.c
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@ -1273,7 +1273,7 @@ static iodev_t *get_fsdev(sigar_t *sigar,
static int get_iostat_sys(sigar_t *sigar,
const char *dirname,
sigar_file_system_usage_t *fsusage)
sigar_disk_usage_t *fsusage)
{
char stat[1025], dev[1025];
char *name, *ptr, *fsdev;
@ -1320,7 +1320,7 @@ static int get_iostat_sys(sigar_t *sigar,
static int get_iostat_proc_dstat(sigar_t *sigar,
const char *dirname,
sigar_file_system_usage_t *fsusage)
sigar_disk_usage_t *fsusage)
{
FILE *fp;
char buffer[1025];
@ -1415,7 +1415,7 @@ static int get_iostat_proc_dstat(sigar_t *sigar,
static int get_iostat_procp(sigar_t *sigar,
const char *dirname,
sigar_file_system_usage_t *fsusage)
sigar_disk_usage_t *fsusage)
{
FILE *fp;
char buffer[1025];
@ -1479,6 +1479,35 @@ static int get_iostat_procp(sigar_t *sigar,
return ENOENT;
}
static int sigar_disk_usage_get(sigar_t *sigar, const char *name,
sigar_disk_usage_t *usage)
{
SIGAR_DISK_STATS_NOTIMPL(usage); /* init */
/*
* 2.2 has metrics /proc/stat, but wtf is the device mapping?
* 2.4 has /proc/partitions w/ the metrics.
* 2.6 has /proc/partitions w/o the metrics.
* instead the metrics are within the /proc-like /sys filesystem.
* also has /proc/diskstats
*/
switch (sigar->iostat) {
case IOSTAT_SYS:
return get_iostat_sys(sigar, name, usage);
case IOSTAT_DISKSTATS:
return get_iostat_proc_dstat(sigar, name, usage);
case IOSTAT_PARTITIONS:
return get_iostat_procp(sigar, name, usage);
/*
* case IOSTAT_SOME_OTHER_WIERD_THING:
* break;
*/
case IOSTAT_NONE:
default:
return ENOENT;
}
}
#include <sys/vfs.h>
#define SIGAR_FS_BLOCKS_TO_BYTES(buf, f) \
@ -1502,38 +1531,8 @@ int sigar_file_system_usage_get(sigar_t *sigar,
fsusage->free_files = buf.f_ffree;
fsusage->use_percent = sigar_file_system_usage_calc_used(sigar, fsusage);
SIGAR_DISK_STATS_NOTIMPL(fsusage); /* init */
/*
* 2.2 has metrics /proc/stat, but wtf is the device mapping?
* 2.4 has /proc/partitions w/ the metrics.
* 2.6 has /proc/partitions w/o the metrics.
* instead the metrics are within the /proc-like /sys filesystem.
* also has /proc/diskstats
*/
switch (sigar->iostat) {
case IOSTAT_SYS:
if (get_iostat_sys(sigar, dirname, fsusage) == SIGAR_OK) {
return SIGAR_OK;
}
break;
case IOSTAT_DISKSTATS:
if (get_iostat_proc_dstat(sigar, dirname, fsusage) == SIGAR_OK) {
return SIGAR_OK;
}
break;
case IOSTAT_PARTITIONS:
if (get_iostat_procp(sigar, dirname, fsusage) == SIGAR_OK) {
return SIGAR_OK;
}
break;
/*
* case IOSTAT_SOME_OTHER_WIERD_THING:
* break;
*/
case IOSTAT_NONE:
break;
}
(void)sigar_disk_usage_get(sigar, dirname,
(sigar_disk_usage_t *)fsusage);
return SIGAR_OK;
}