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refactor towards getting disk service_time

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This commit is contained in:
Doug MacEachern 2007-11-04 20:54:22 +00:00
parent b633b1350b
commit 9d437eb281
1 changed files with 63 additions and 23 deletions
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86
src/os/solaris/solaris_sigar.c
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@ -1569,8 +1569,9 @@ static int io_kstat_read(sigar_t *sigar,
return SIGAR_OK;
}
int sigar_disk_usage_get(sigar_t *sigar, const char *name,
sigar_disk_usage_t *disk)
static int sigar_kstat_disk_usage_get(sigar_t *sigar, const char *name,
sigar_disk_usage_t *disk)
{
kstat_t *ksp;
@ -1592,7 +1593,65 @@ int sigar_disk_usage_get(sigar_t *sigar, const char *name,
}
}
return ENOENT;
return ENXIO;
}
static int simple_hash(const char *s)
{
int hash = 0;
while (*s) {
hash = 31*hash + *s++;
}
return hash;
}
int sigar_disk_usage_get(sigar_t *sigar, const char *name,
sigar_disk_usage_t *disk)
{
int status;
iodev_t *iodev;
sigar_cache_entry_t *ent;
sigar_uint64_t id;
if (!sigar->fsdev) {
if (create_fsdev_cache(sigar) != SIGAR_OK) {
return SIGAR_OK;
}
}
if (*name == '/') {
struct stat sb;
if (stat(name, &sb) < 0) {
return errno;
}
id = SIGAR_FSDEV_ID(sb);
ent = sigar_cache_get(sigar->fsdev, id);
if (ent->value == NULL) {
return ENXIO;
}
iodev = (iodev_t *)ent->value;
status = sigar_kstat_disk_usage_get(sigar, iodev->name, disk);
}
else {
status = sigar_kstat_disk_usage_get(sigar, name, disk);
if (status != SIGAR_OK) {
return status;
}
id = simple_hash(name); /*XXX*/
ent = sigar_cache_get(sigar->fsdev, id);
if (ent->value) {
iodev = (iodev_t *)ent->value;
}
else {
ent->value = iodev = malloc(sizeof(*iodev));
SIGAR_SSTRCPY(iodev->name, name);
SIGAR_DISK_STATS_INIT(&iodev->disk);
}
}
return status;
}
int sigar_file_system_usage_get(sigar_t *sigar,
@ -1600,9 +1659,6 @@ int sigar_file_system_usage_get(sigar_t *sigar,
sigar_file_system_usage_t *fsusage)
{
struct statvfs buf;
struct stat sb;
sigar_cache_entry_t *ent;
iodev_t *iodev;
if (statvfs(dirname, &buf) != 0) {
return errno;
@ -1616,23 +1672,7 @@ 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);
if (!sigar->fsdev) {
if (create_fsdev_cache(sigar) != SIGAR_OK) {
return SIGAR_OK;
}
}
if (stat(dirname, &sb) < 0) {
return SIGAR_OK;
}
ent = sigar_cache_get(sigar->fsdev, SIGAR_FSDEV_ID(sb));
if (ent->value == NULL) {
return SIGAR_OK;
}
iodev = (iodev_t *)ent->value;
sigar_disk_usage_get(sigar, iodev->name, &fsusage->disk);
sigar_disk_usage_get(sigar, dirname, &fsusage->disk);
return SIGAR_OK;
}