Move the information gathering code into backends

This commit is contained in:
Pierre Pronchery 2016-02-04 16:08:53 +01:00
parent 944cbf101e
commit db4d65ffa6
4 changed files with 231 additions and 195 deletions

210
src/damon-backend-app.c Normal file
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@ -0,0 +1,210 @@
/* $Id$ */
/* Copyright (c) 2016 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Network Probe */
/* 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, version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even 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, see <http://www.gnu.org/licenses/>. */
/* damon_refresh */
static AppClient * _refresh_connect(Host * host, Event * event);
static int _refresh_uptime(AppClient * ac, Host * host, char * rrd);
static int _refresh_load(AppClient * ac, Host * host, char * rrd);
static int _refresh_ram(AppClient * ac, Host * host, char * rrd);
static int _refresh_swap(AppClient * ac, Host * host, char * rrd);
static int _refresh_procs(AppClient * ac, Host * host, char * rrd);
static int _refresh_users(AppClient * ac, Host * host, char * rrd);
static int _refresh_ifaces(AppClient * ac, Host * host, char * rrd);
static int _refresh_ifaces_if(AppClient * ac, Host * host, char * rrd,
char const * iface);
static int _refresh_vols(AppClient * ac, Host * host, char * rrd);
static int _refresh_vols_vol(AppClient * ac, Host * host, char * rrd,
char * vol);
int damon_refresh(DaMon * damon)
{
unsigned int i;
AppClient * ac = NULL;
char * rrd = NULL;
char * p;
Host * hosts = damon->hosts;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
for(i = 0; i < damon->hosts_cnt; i++)
{
if((ac = hosts[i].appclient) == NULL)
if((ac = _refresh_connect(&hosts[i], damon->event))
== NULL)
continue;
if((p = realloc(rrd, string_length(hosts[i].hostname) + 12))
== NULL) /* XXX avoid this constant */
break;
rrd = p;
if(_refresh_uptime(ac, &hosts[i], rrd) != 0
|| _refresh_load(ac, &hosts[i], rrd) != 0
|| _refresh_ram(ac, &hosts[i], rrd) != 0
|| _refresh_swap(ac, &hosts[i], rrd) != 0
|| _refresh_procs(ac, &hosts[i], rrd) != 0
|| _refresh_users(ac, &hosts[i], rrd) != 0
|| _refresh_ifaces(ac, &hosts[i], rrd) != 0
|| _refresh_vols(ac, &hosts[i], rrd) != 0)
{
appclient_delete(ac);
hosts[i].appclient = NULL;
continue;
}
ac = NULL;
}
free(rrd);
if(ac != NULL)
error_set_print(PROGNAME, 1, "%s", "refresh: An error occured");
return 0;
}
static AppClient * _refresh_connect(Host * host, Event * event)
{
if(setenv("APPSERVER_Probe", host->hostname, 1) != 0)
return NULL;
if((host->appclient = appclient_new_event(NULL, "Probe", NULL, event))
== NULL)
error_print(PROGNAME);
return host->appclient;
}
static int _refresh_uptime(AppClient * ac, Host * host, char * rrd)
{
int32_t ret;
if(appclient_call(ac, (void **)&ret, "uptime") != 0)
return error_print(PROGNAME);
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "uptime.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 1, ret);
return 0;
}
static int _refresh_load(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
uint32_t load[3];
if(appclient_call(ac, (void **)&res, "load", &load[0], &load[1],
&load[2]) != 0)
return error_print(PROGNAME);
if(res != 0)
return 0;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "load.rrd");
_damon_update(host->damon, RRDTYPE_LOAD, rrd, 3,
load[0], load[1], load[2]);
return 0;
}
static int _refresh_procs(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
if(appclient_call(ac, (void **)&res, "procs") != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "procs.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 1, res);
return 0;
}
static int _refresh_ram(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
uint32_t ram[4];
if(appclient_call(ac, (void **)&res, "ram", &ram[0], &ram[1], &ram[2],
&ram[3]) != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "ram.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 4,
ram[0], ram[1], ram[2], ram[3]);
return 0;
}
static int _refresh_swap(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
uint32_t swap[2];
if(appclient_call(ac, (void **)&res, "swap", &swap[0], &swap[1]) != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "swap.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 2, swap[0], swap[1]);
return 0;
}
static int _refresh_users(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
if(appclient_call(ac, (void **)&res, "users") != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "users.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 1, res);
return 0;
}
static int _refresh_ifaces(AppClient * ac, Host * host, char * rrd)
{
char ** p = host->ifaces;
int ret = 0;
if(p == NULL)
return 0;
for(; *p != NULL; p++)
ret |= _refresh_ifaces_if(ac, host, rrd, *p);
return ret;
}
static int _refresh_ifaces_if(AppClient * ac, Host * host, char * rrd,
char const * iface)
{
int32_t res[2];
if(appclient_call(ac, (void **)&res[0], "ifrxbytes", iface) != 0
|| appclient_call(ac, (void **)&res[1], "iftxbytes",
iface) != 0)
return 1;
sprintf(rrd, "%s%c%s%s", host->hostname, DAMON_SEP, iface, ".rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 2, res[0], res[1]);
return 0;
}
static int _refresh_vols(AppClient * ac, Host * host, char * rrd)
{
char ** p = host->vols;
int ret = 0;
if(p == NULL)
return 0;
for(; *p != NULL; p++)
ret |= _refresh_vols_vol(ac, host, rrd, *p);
return ret;
}
static int _refresh_vols_vol(AppClient * ac, Host * host, char * rrd,
char * vol)
{
int32_t res[2];
if(appclient_call(ac, (void **)&res[0], "voltotal", vol) != 0
|| appclient_call(ac, (void **)&res[1], "volfree", vol)
!= 0)
return 1;
sprintf(rrd, "%s%s%s", host->hostname, vol, ".rrd"); /* FIXME */
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 2, res[0], res[1]);
return 0;
}

18
src/damon-backend.c Normal file
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@ -0,0 +1,18 @@
/* $Id$ */
/* Copyright (c) 2016 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Network Probe */
/* 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, version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even 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, see <http://www.gnu.org/licenses/>. */
#include "damon-backend-app.c"

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@ -137,199 +137,7 @@ Event * damon_get_event(DaMon * damon)
/* useful */ /* useful */
/* damon_refresh */ /* damon_refresh */
static AppClient * _refresh_connect(Host * host, Event * event); #include "damon-backend.c"
static int _refresh_uptime(AppClient * ac, Host * host, char * rrd);
static int _refresh_load(AppClient * ac, Host * host, char * rrd);
static int _refresh_ram(AppClient * ac, Host * host, char * rrd);
static int _refresh_swap(AppClient * ac, Host * host, char * rrd);
static int _refresh_procs(AppClient * ac, Host * host, char * rrd);
static int _refresh_users(AppClient * ac, Host * host, char * rrd);
static int _refresh_ifaces(AppClient * ac, Host * host, char * rrd);
static int _refresh_ifaces_if(AppClient * ac, Host * host, char * rrd,
char const * iface);
static int _refresh_vols(AppClient * ac, Host * host, char * rrd);
static int _refresh_vols_vol(AppClient * ac, Host * host, char * rrd,
char * vol);
int damon_refresh(DaMon * damon)
{
unsigned int i;
AppClient * ac = NULL;
char * rrd = NULL;
char * p;
Host * hosts = damon->hosts;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
for(i = 0; i < damon->hosts_cnt; i++)
{
if((ac = hosts[i].appclient) == NULL)
if((ac = _refresh_connect(&hosts[i], damon->event))
== NULL)
continue;
if((p = realloc(rrd, string_length(hosts[i].hostname) + 12))
== NULL) /* XXX avoid this constant */
break;
rrd = p;
if(_refresh_uptime(ac, &hosts[i], rrd) != 0
|| _refresh_load(ac, &hosts[i], rrd) != 0
|| _refresh_ram(ac, &hosts[i], rrd) != 0
|| _refresh_swap(ac, &hosts[i], rrd) != 0
|| _refresh_procs(ac, &hosts[i], rrd) != 0
|| _refresh_users(ac, &hosts[i], rrd) != 0
|| _refresh_ifaces(ac, &hosts[i], rrd) != 0
|| _refresh_vols(ac, &hosts[i], rrd) != 0)
{
appclient_delete(ac);
hosts[i].appclient = NULL;
continue;
}
ac = NULL;
}
free(rrd);
if(ac != NULL)
fprintf(stderr, "%s: %s\n", PROGNAME,
"refresh: An error occured");
return 0;
}
static AppClient * _refresh_connect(Host * host, Event * event)
{
if(setenv("APPSERVER_Probe", host->hostname, 1) != 0)
return NULL;
if((host->appclient = appclient_new_event(NULL, "Probe", NULL, event))
== NULL)
error_print(PROGNAME);
return host->appclient;
}
static int _refresh_uptime(AppClient * ac, Host * host, char * rrd)
{
int32_t ret;
if(appclient_call(ac, (void **)&ret, "uptime") != 0)
return error_print(PROGNAME);
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "uptime.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 1, ret);
return 0;
}
static int _refresh_load(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
uint32_t load[3];
if(appclient_call(ac, (void **)&res, "load", &load[0], &load[1],
&load[2]) != 0)
return error_print(PROGNAME);
if(res != 0)
return 0;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "load.rrd");
_damon_update(host->damon, RRDTYPE_LOAD, rrd, 3,
load[0], load[1], load[2]);
return 0;
}
static int _refresh_procs(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
if(appclient_call(ac, (void **)&res, "procs") != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "procs.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 1, res);
return 0;
}
static int _refresh_ram(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
uint32_t ram[4];
if(appclient_call(ac, (void **)&res, "ram", &ram[0], &ram[1], &ram[2],
&ram[3]) != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "ram.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 4,
ram[0], ram[1], ram[2], ram[3]);
return 0;
}
static int _refresh_swap(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
uint32_t swap[2];
if(appclient_call(ac, (void **)&res, "swap", &swap[0], &swap[1]) != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "swap.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 2, swap[0], swap[1]);
return 0;
}
static int _refresh_users(AppClient * ac, Host * host, char * rrd)
{
int32_t res;
if(appclient_call(ac, (void **)&res, "users") != 0)
return 1;
sprintf(rrd, "%s%c%s", host->hostname, DAMON_SEP, "users.rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 1, res);
return 0;
}
static int _refresh_ifaces(AppClient * ac, Host * host, char * rrd)
{
char ** p = host->ifaces;
int ret = 0;
if(p == NULL)
return 0;
for(; *p != NULL; p++)
ret |= _refresh_ifaces_if(ac, host, rrd, *p);
return ret;
}
static int _refresh_ifaces_if(AppClient * ac, Host * host, char * rrd,
char const * iface)
{
int32_t res[2];
if(appclient_call(ac, (void **)&res[0], "ifrxbytes", iface) != 0
|| appclient_call(ac, (void **)&res[1], "iftxbytes",
iface) != 0)
return 1;
sprintf(rrd, "%s%c%s%s", host->hostname, DAMON_SEP, iface, ".rrd");
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 2, res[0], res[1]);
return 0;
}
static int _refresh_vols(AppClient * ac, Host * host, char * rrd)
{
char ** p = host->vols;
int ret = 0;
if(p == NULL)
return 0;
for(; *p != NULL; p++)
ret |= _refresh_vols_vol(ac, host, rrd, *p);
return ret;
}
static int _refresh_vols_vol(AppClient * ac, Host * host, char * rrd,
char * vol)
{
int32_t res[2];
if(appclient_call(ac, (void **)&res[0], "voltotal", vol) != 0
|| appclient_call(ac, (void **)&res[1], "volfree", vol)
!= 0)
return 1;
sprintf(rrd, "%s%s%s", host->hostname, vol, ".rrd"); /* FIXME */
_damon_update(host->damon, RRDTYPE_UNKNOWN, rrd, 2, res[0], res[1]);
return 0;
}
/* private */ /* private */

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@ -3,7 +3,7 @@ cflags_force=`pkg-config --cflags libApp`
cflags=-W -Wall -g -O2 -pedantic -fPIE -D_FORTIFY_SOURCE=2 -fstack-protector-all cflags=-W -Wall -g -O2 -pedantic -fPIE -D_FORTIFY_SOURCE=2 -fstack-protector-all
ldflags_force=`pkg-config --libs libApp` ldflags_force=`pkg-config --libs libApp`
ldflags=-Wl,-pie -Wl,-z,relro -Wl,-z,now ldflags=-Wl,-pie -Wl,-z,relro -Wl,-z,now
dist=Makefile,appbroker.sh,damon.h,rrd.h dist=Makefile,appbroker.sh,damon.h,damon-backend.c,damon-backend-app.c,rrd.h
[../data/Probe.h] [../data/Probe.h]
type=script type=script
@ -22,7 +22,7 @@ sources=damon.c,damon-main.c,rrd.c
install=$(BINDIR) install=$(BINDIR)
[damon.c] [damon.c]
depends=damon.h,rrd.h,../config.h depends=damon.h,damon-backend.c,damon-backend-app.c,rrd.h,../config.h
[damon-main.c] [damon-main.c]
depends=damon.h depends=damon.h