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sa_wrap.c
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sa_wrap.c
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/*
* sysstat - sa_wrap.c: Functions used in activity.c
* (C) 1999-2019 by Sebastien GODARD (sysstat <at> orange.fr)
*
***************************************************************************
* This program is free software; you can redistribute it and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; either version 2 of the License, or (at your *
* option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
* for more details. *
* *
* You should have received a copy of the GNU General Public License along *
* with this program; if not, write to the Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA *
***************************************************************************
*/
#include <dirent.h>
#include <string.h>
#include "sa.h"
#include "count.h"
extern unsigned int flags;
extern struct record_header record_hdr;
/*
***************************************************************************
* Reallocate buffer where statistics will be saved. The new size is the
* double of the original one.
* This is typically called when we find that current buffer is too small
* to save all the data.
*
* IN:
* @a Activity structure.
*
* RETURNS:
* New pointer address on buffer.
***************************************************************************
*/
void *reallocate_buffer(struct activity *a)
{
SREALLOC(a->_buf0, void,
(size_t) a->msize * (size_t) a->nr_allocated * 2); /* a->nr2 value is 1 */
memset(a->_buf0, 0, (size_t) a->msize * (size_t) a->nr_allocated * 2);
a->nr_allocated *= 2; /* NB: nr_allocated > 0 */
return a->_buf0;
}
/*
***************************************************************************
* Read CPU statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_stat_cpu(struct activity *a)
{
struct stats_cpu *st_cpu
= (struct stats_cpu *) a->_buf0;
__nr_t nr_read = 0;
/* Read CPU statistics */
do {
nr_read = read_stat_cpu(st_cpu, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_cpu = (struct stats_cpu *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read process (task) creation and context switch statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_stat_pcsw(struct activity *a)
{
struct stats_pcsw *st_pcsw
= (struct stats_pcsw *) a->_buf0;
/* Read process and context switch stats */
read_stat_pcsw(st_pcsw);
return;
}
/*
***************************************************************************
* Read interrupt statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_stat_irq(struct activity *a)
{
struct stats_irq *st_irq
= (struct stats_irq *) a->_buf0;
__nr_t nr_read;
/* Read interrupts stats */
do {
nr_read = read_stat_irq(st_irq, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_irq = (struct stats_irq *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read queue and load statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_loadavg(struct activity *a)
{
struct stats_queue *st_queue
= (struct stats_queue *) a->_buf0;
/* Read queue and load stats */
read_loadavg(st_queue);
return;
}
/*
***************************************************************************
* Read memory statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_meminfo(struct activity *a)
{
struct stats_memory *st_memory
= (struct stats_memory *) a->_buf0;
/* Read memory stats */
read_meminfo(st_memory);
return;
}
/*
***************************************************************************
* Read swapping statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_swap(struct activity *a)
{
struct stats_swap *st_swap
= (struct stats_swap *) a->_buf0;
/* Read stats from /proc/vmstat */
read_vmstat_swap(st_swap);
return;
}
/*
***************************************************************************
* Read paging statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_paging(struct activity *a)
{
struct stats_paging *st_paging
= (struct stats_paging *) a->_buf0;
/* Read stats from /proc/vmstat */
read_vmstat_paging(st_paging);
return;
}
/*
***************************************************************************
* Read I/O and transfer rates statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_io(struct activity *a)
{
struct stats_io *st_io
= (struct stats_io *) a->_buf0;
/* Read stats from /proc/diskstats */
read_diskstats_io(st_io);
return;
}
/*
***************************************************************************
* Read block devices statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_disk(struct activity *a)
{
struct stats_disk *st_disk
= (struct stats_disk *) a->_buf0;
__nr_t nr_read = 0;
/* Read stats from /proc/diskstats */
do {
nr_read = read_diskstats_disk(st_disk, a->nr_allocated,
COLLECT_PARTITIONS(a->opt_flags));
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_disk = (struct stats_disk *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read serial lines statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_tty_driver_serial(struct activity *a)
{
struct stats_serial *st_serial
= (struct stats_serial *) a->_buf0;
__nr_t nr_read = 0;
/* Read serial lines stats */
do {
nr_read = read_tty_driver_serial(st_serial, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_serial = (struct stats_serial *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read kernel tables statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_kernel_tables(struct activity *a)
{
struct stats_ktables *st_ktables
= (struct stats_ktables *) a->_buf0;
/* Read kernel tables stats */
read_kernel_tables(st_ktables);
return;
}
/*
***************************************************************************
* Read network interfaces statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_dev(struct activity *a)
{
struct stats_net_dev *st_net_dev
= (struct stats_net_dev *) a->_buf0;
__nr_t nr_read = 0;
/* Read network interfaces stats */
do {
nr_read = read_net_dev(st_net_dev, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_net_dev = (struct stats_net_dev *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
if (!nr_read)
/* No data read. Exit */
return;
/* Read duplex and speed info for each interface */
read_if_info(st_net_dev, nr_read);
return;
}
/*
***************************************************************************
* Read network interfaces errors statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_edev(struct activity *a)
{
struct stats_net_edev *st_net_edev
= (struct stats_net_edev *) a->_buf0;
__nr_t nr_read = 0;
/* Read network interfaces errors stats */
do {
nr_read = read_net_edev(st_net_edev, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_net_edev = (struct stats_net_edev *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read NFS client statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_nfs(struct activity *a)
{
struct stats_net_nfs *st_net_nfs
= (struct stats_net_nfs *) a->_buf0;
/* Read NFS client stats */
read_net_nfs(st_net_nfs);
return;
}
/*
***************************************************************************
* Read NFS server statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_nfsd(struct activity *a)
{
struct stats_net_nfsd *st_net_nfsd
= (struct stats_net_nfsd *) a->_buf0;
/* Read NFS server stats */
read_net_nfsd(st_net_nfsd);
return;
}
/*
***************************************************************************
* Read network sockets statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_sock(struct activity *a)
{
struct stats_net_sock *st_net_sock
= (struct stats_net_sock *) a->_buf0;
/* Read network sockets stats */
read_net_sock(st_net_sock);
return;
}
/*
***************************************************************************
* Read IP statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_ip(struct activity *a)
{
struct stats_net_ip *st_net_ip
= (struct stats_net_ip *) a->_buf0;
/* Read IP stats */
read_net_ip(st_net_ip);
return;
}
/*
***************************************************************************
* Read IP error statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_eip(struct activity *a)
{
struct stats_net_eip *st_net_eip
= (struct stats_net_eip *) a->_buf0;
/* Read IP error stats */
read_net_eip(st_net_eip);
return;
}
/*
***************************************************************************
* Read ICMP statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_icmp(struct activity *a)
{
struct stats_net_icmp *st_net_icmp
= (struct stats_net_icmp *) a->_buf0;
/* Read ICMP stats */
read_net_icmp(st_net_icmp);
return;
}
/*
***************************************************************************
* Read ICMP error statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_eicmp(struct activity *a)
{
struct stats_net_eicmp *st_net_eicmp
= (struct stats_net_eicmp *) a->_buf0;
/* Read ICMP error stats */
read_net_eicmp(st_net_eicmp);
return;
}
/*
***************************************************************************
* Read TCP statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_tcp(struct activity *a)
{
struct stats_net_tcp *st_net_tcp
= (struct stats_net_tcp *) a->_buf0;
/* Read TCP stats */
read_net_tcp(st_net_tcp);
return;
}
/*
***************************************************************************
* Read TCP error statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_etcp(struct activity *a)
{
struct stats_net_etcp *st_net_etcp
= (struct stats_net_etcp *) a->_buf0;
/* Read TCP error stats */
read_net_etcp(st_net_etcp);
return;
}
/*
***************************************************************************
* Read UDP statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_udp(struct activity *a)
{
struct stats_net_udp *st_net_udp
= (struct stats_net_udp *) a->_buf0;
/* Read UDP stats */
read_net_udp(st_net_udp);
return;
}
/*
***************************************************************************
* Read IPv6 network sockets statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_sock6(struct activity *a)
{
struct stats_net_sock6 *st_net_sock6
= (struct stats_net_sock6 *) a->_buf0;
/* Read IPv6 network sockets stats */
read_net_sock6(st_net_sock6);
return;
}
/*
***************************************************************************
* Read IPv6 statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_ip6(struct activity *a)
{
struct stats_net_ip6 *st_net_ip6
= (struct stats_net_ip6 *) a->_buf0;
/* Read IPv6 stats */
read_net_ip6(st_net_ip6);
return;
}
/*
***************************************************************************
* Read IPv6 error statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_eip6(struct activity *a)
{
struct stats_net_eip6 *st_net_eip6
= (struct stats_net_eip6 *) a->_buf0;
/* Read IPv6 error stats */
read_net_eip6(st_net_eip6);
return;
}
/*
***************************************************************************
* Read ICMPv6 statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_icmp6(struct activity *a)
{
struct stats_net_icmp6 *st_net_icmp6
= (struct stats_net_icmp6 *) a->_buf0;
/* Read ICMPv6 stats */
read_net_icmp6(st_net_icmp6);
return;
}
/*
***************************************************************************
* Read ICMPv6 error statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_eicmp6(struct activity *a)
{
struct stats_net_eicmp6 *st_net_eicmp6
= (struct stats_net_eicmp6 *) a->_buf0;
/* Read ICMPv6 error stats */
read_net_eicmp6(st_net_eicmp6);
return;
}
/*
***************************************************************************
* Read UDPv6 statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_net_udp6(struct activity *a)
{
struct stats_net_udp6 *st_net_udp6
= (struct stats_net_udp6 *) a->_buf0;
/* Read UDPv6 stats */
read_net_udp6(st_net_udp6);
return;
}
/*
***************************************************************************
* Read CPU frequency statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_cpuinfo(struct activity *a)
{
struct stats_pwr_cpufreq *st_pwr_cpufreq
= (struct stats_pwr_cpufreq *) a->_buf0;
__nr_t nr_read = 0;
/* Read CPU frequency stats */
do {
nr_read = read_cpuinfo(st_pwr_cpufreq, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_pwr_cpufreq = (struct stats_pwr_cpufreq *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read fan statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_fan(struct activity *a)
{
struct stats_pwr_fan *st_pwr_fan
= (struct stats_pwr_fan *) a->_buf0;
__nr_t nr_read = 0;
/* Read fan stats */
do {
nr_read = read_fan(st_pwr_fan, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_pwr_fan = (struct stats_pwr_fan *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read temperature statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_temp(struct activity *a)
{
struct stats_pwr_temp *st_pwr_temp
= (struct stats_pwr_temp *) a->_buf0;
__nr_t nr_read = 0;
/* Read temperature stats */
do {
nr_read = read_temp(st_pwr_temp, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_pwr_temp = (struct stats_pwr_temp *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read voltage input statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_in(struct activity *a)
{
struct stats_pwr_in *st_pwr_in
= (struct stats_pwr_in *) a->_buf0;
__nr_t nr_read = 0;
/* Read voltage input stats */
do {
nr_read = read_in(st_pwr_in, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_pwr_in = (struct stats_pwr_in *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read hugepages statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_meminfo_huge(struct activity *a)
{
struct stats_huge *st_huge
= (struct stats_huge *) a->_buf0;
/* Read hugepages stats */
read_meminfo_huge(st_huge);
return;
}
/*
***************************************************************************
* Read weighted CPU frequency statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_cpu_wghfreq(struct activity *a)
{
struct stats_pwr_wghfreq *st_pwr_wghfreq
= (struct stats_pwr_wghfreq *) a->_buf0;
__nr_t nr_read = 0;
/* Read weighted CPU frequency statistics */
do {
nr_read = read_cpu_wghfreq(st_pwr_wghfreq, a->nr_allocated, a->nr2);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
SREALLOC(a->_buf0, void,
(size_t) a->msize * (size_t) a->nr2 * (size_t) a->nr_allocated * 2);
memset(a->_buf0, 0,
(size_t) a->msize * (size_t) a->nr2 * (size_t) a->nr_allocated * 2);
/* NB: nr_allocated > 0 */
a->nr_allocated *= 2;
st_pwr_wghfreq = (struct stats_pwr_wghfreq *) a->_buf0;
}
}
while(nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read USB devices statistics.
*
* IN:
* @a Activity structure.
*
* OUT:
* @a Activity structure with statistics.
***************************************************************************
*/
__read_funct_t wrap_read_bus_usb_dev(struct activity *a)
{
struct stats_pwr_usb *st_pwr_usb
= (struct stats_pwr_usb *) a->_buf0;
__nr_t nr_read = 0;
/* Read USB devices stats */
do {
nr_read = read_bus_usb_dev(st_pwr_usb, a->nr_allocated);
if (nr_read < 0) {
/* Buffer needs to be reallocated */
st_pwr_usb = (struct stats_pwr_usb *) reallocate_buffer(a);
}
}
while (nr_read < 0);
a->_nr0 = nr_read;
return;
}
/*
***************************************************************************
* Read filesystem statistics.
*
* IN:
* @a Activity structure.