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|
/* omrabbitmq.c
*
* This output plugin enables rsyslog to send messages to the RabbitMQ.
*
* Copyright 2012-2013 Vaclav Tomec
* Copyright 2014 Rainer Gerhards
* Copyright 2022 Hamid Maadani
*
* This program is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 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 even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Vaclav Tomec
* <vaclav.tomec@gmail.com>
*
* TLS & AMQP heartbeat support added by:
* Hamid Maadani
* <hamid@dexo.tech>
*
*/
#include "config.h"
#include <pthread.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <signal.h>
#include <errno.h>
#include <time.h>
#include <sys/time.h>
#include "rsyslog.h"
#include "conf.h"
#include "syslogd-types.h"
#include "srUtils.h"
#include "template.h"
#include "module-template.h"
#include "errmsg.h"
#include "cfsysline.h"
#include "debug.h"
#include "datetime.h"
#include "rsconf.h"
#include <sys/socket.h>
#include "amqp.h"
#include "amqp_framing.h"
#include "amqp_tcp_socket.h"
#include "amqp_ssl_socket.h"
#if (AMQP_VERSION_MAJOR == 0) && (AMQP_VERSION_MINOR < 4)
#error "rabbitmq-c version must be >= 0.4.0"
#endif
#define RABBITMQ_CHANNEL 1
MODULE_TYPE_OUTPUT
MODULE_TYPE_NOKEEP
MODULE_CNFNAME("omrabbitmq")
/*
* internal structures
*/
DEF_OMOD_STATIC_DATA
DEFobjCurrIf(glbl)
DEFobjCurrIf(datetime)
static int instance_counter = 0;
static int mode_test = 0;
typedef struct {
char *host; /* rabbitmq server fqdn or IP */
int port; /* rabbitmq server port */
} server_t;
typedef struct {
server_t s; /* rabbitmq server */
int failures; /* rabbitmq server failures */
} server_wrk_t;
typedef struct {
time_t return_check_interval; /* time interval between usual server health checks */
time_t half_return_check_interval; /* for computing */
time_t quick_oscillation_interval; /* time interval below which the service is not stable */
int quick_oscillation_max; /* number of quick oscillation after which the connection is kept on backup */
time_t graceful_interval; /* time interval the connection is kept on backup after which the usual server
* check restarts */
int quick_oscillation_count; /* current number of simultaneous quick oscillation detected */
} recover_t;
typedef struct _instanceData {
/* here you need to define all action-specific data. A record of type
* instanceData will be handed over to each instance of the action. Keep
* in mind that there may be several invocations of the same type of action
* inside rsyslog.conf, and this is what keeps them apart. Do NOT use
* static data for this!
*/
amqp_bytes_t exchange; /* exchange to send message to */
amqp_bytes_t routing_key; /* fixed routing_key to use */
uchar *routing_key_template; /* routing_key template */
int idx_routing_key_template; /* routing_key template index in doAction tab */
sbool populate_properties; /* populates message properties */
int delivery_mode; /* delivery mode transient or persistent message */
amqp_bytes_t expiration; /* message expiration */
uchar *body_template; /* body template */
int idx_body_template; /* body template index in doAction tab */
amqp_basic_properties_t amqp_props_tpl_type; /* */
char *content_type; /* */
amqp_basic_properties_t amqp_props_plaintext; /* */
char *exchange_type; /* */
int durable; /* */
int auto_delete; /* */
int iidx;
int nbWrkr;
server_t server1; /* first rabbitmq server */
server_t server2; /* second rabbitmq server */
char *vhost; /* rabbitmq server vhost */
char *user; /* rabbitmq username */
char *password; /* rabbitmq username's password */
int ssl; /* should amqp connection be made over TLS? */
int initOpenSSL; /* should rabbitmq-c initialize OpenSSL? */
int verifyPeer; /* should peer be verified for TLS? */
int verifyHostname; /* should hostname be verified for TLS? */
int heartbeat; /* AMQP heartbeat interval in seconds (0 means disabled, which is default) */
char *caCert; /* CA certificate to be used for TLS connection */
recover_t recover_policy;
} instanceData;
typedef struct wrkrInstanceData {
amqp_connection_state_t a_conn; /* amqp connection */
int connected;
int channel_opened;
pthread_t thread; /* */
short thread_running; /* */
pthread_mutex_t send_mutex; /* */
pthread_cond_t cond; /* */
rsRetVal state; /* state of the connection */
server_wrk_t serverPrefered; /* usual rabbitmq server */
server_wrk_t serverBackup; /* backup rabbitmq server */
server_wrk_t *serverActive; /* active rabbitmq server */
instanceData *pData;
recover_t recover_policy;
time_t last_failback;
int iidx;
int widx;
int go_on;
} wrkrInstanceData_t;
typedef struct _msg2amqp_props_ {
propid_t id;
const char *name;
amqp_bytes_t *standardprop;
int flag;
} msg2amqp_props_t;
/* tables for interfacing with the v6 config system */
/* action (instance) parameters */
static struct cnfparamdescr actpdescr[] = {
{ "host", eCmdHdlrString, 0 },
{ "port", eCmdHdlrInt, 0 },
{ "virtual_host", eCmdHdlrGetWord, 0 },
{ "heartbeat_interval", eCmdHdlrNonNegInt, 0 },
{ "user", eCmdHdlrGetWord, 0 },
{ "password", eCmdHdlrGetWord, 0 },
{ "ssl", eCmdHdlrBinary, 0 },
{ "init_openssl", eCmdHdlrBinary, 0 },
{ "verify_peer", eCmdHdlrBinary, 0 },
{ "verify_hostname", eCmdHdlrBinary, 0 },
{ "ca_cert", eCmdHdlrGetWord, 0 },
{ "exchange", eCmdHdlrGetWord, 0 },
{ "routing_key", eCmdHdlrGetWord, 0 },
{ "routing_key_template", eCmdHdlrGetWord, 0 },
{ "delivery_mode", eCmdHdlrGetWord, 0 },
{ "expiration", eCmdHdlrNonNegInt, 0 },
{ "populate_properties", eCmdHdlrBinary, 0 },
{ "body_template", eCmdHdlrGetWord, 0 },
{ "content_type", eCmdHdlrGetWord, 0 },
{ "recover_policy", eCmdHdlrString, 0 },
{ "exchange_type", eCmdHdlrGetWord, 0},
{ "durable", eCmdHdlrBinary, 0},
{ "auto_delete", eCmdHdlrBinary, 0},
};
static struct cnfparamblk actpblk =
{
CNFPARAMBLK_VERSION,
sizeof(actpdescr)/sizeof(struct cnfparamdescr),
actpdescr
};
static amqp_bytes_t cstring_bytes(const char *str)
{
return str ? amqp_cstring_bytes(str) : amqp_empty_bytes;
}
/* Initialize recover structure from the configuration string
*/
static void init_recover(recover_t *fb, char *str)
{
time_t value[4] = { 0, 0, 0, 0 };
if (str && *str){
int i = -1;
do {
value[++i] = strtoul(str, &str, 10);
if (*str) str++;
} while (i < 3 && value[i] && *str);
}
fb->return_check_interval = (value[0]) ? value[0] : 60;
fb->half_return_check_interval = fb->return_check_interval / 2;
fb->quick_oscillation_interval = (value[1]) ? value[1] : (fb->return_check_interval / 10);
fb->quick_oscillation_max = (value[2]) ? (int)(value[2]) : 3;
fb->graceful_interval = (value[3]) ? value[3] : (fb->return_check_interval * 10) -
fb->half_return_check_interval;
fb->quick_oscillation_count = 0;
}
/* this method compute the delay before next reconnection attempt according
*/
static unsigned long next_check(recover_t *fb, time_t last_failback)
{
time_t now = time(NULL);
srandom(now);
if (now - last_failback < fb->quick_oscillation_interval) {
/* quick oscillation detected */
fb->quick_oscillation_count++;
if (fb->quick_oscillation_count > fb->quick_oscillation_max) {
/* too much oscillation inserting a graceful sleep */
fb->quick_oscillation_count = 0;
return fb->graceful_interval + fb->return_check_interval * random() / RAND_MAX;
}
} else
fb->quick_oscillation_count = 0;
/* returning a standard delay between 0,5 and 1,5 * return_check_interval */
return fb->half_return_check_interval + fb->return_check_interval * random() / RAND_MAX;
}
/* authenticate to rabbitmq server and set connection parameter according to rsyslog configuration
*/
static int amqp_authenticate(wrkrInstanceData_t *self, amqp_connection_state_t a_conn)
{
amqp_rpc_reply_t ret;
/* define the frame size */
int frame_size = (glbl.GetMaxLine(runConf)<130000) ? 131072 : (glbl.GetMaxLine(runConf)+1072);
/* authenticate */
ret = amqp_login(a_conn, (char const *)self->pData->vhost, 1, frame_size, self->pData->heartbeat,
AMQP_SASL_METHOD_PLAIN, self->pData->user, self->pData->password);
if (ret.reply_type != AMQP_RESPONSE_NORMAL)
{
LogError(0, RS_RET_RABBITMQ_LOGIN_ERR, "omrabbitmq module %d/%d: login to AMQP "
"server %s failed. (%d / %s)",
self->iidx, self->widx, self->serverActive->s.host, ret.reply_type,
amqp_error_string2(ret.library_error));
return 0;
}
/* open the communication channel */
amqp_channel_open(a_conn, 1);
if (amqp_get_rpc_reply(a_conn).reply_type != AMQP_RESPONSE_NORMAL)
{
LogError(0, RS_RET_RABBITMQ_CHANNEL_ERR, "omrabbitmq module %d/%d: open channel failed.",
self->iidx, self->widx);
return 0;
}
if (self->pData->exchange_type) {
/* we declare the exchange according to specifications */
amqp_table_t props = { 0, NULL };
#if (AMQP_VERSION_MAJOR == 0) && (AMQP_VERSION_MINOR < 6)
amqp_exchange_declare(a_conn, 1, self->pData->exchange, cstring_bytes(self->pData->exchange_type),
0, self->pData->durable, props);
#else
amqp_exchange_declare(a_conn, 1, self->pData->exchange, cstring_bytes(self->pData->exchange_type),
0, self->pData->durable, self->pData->auto_delete, 0, props);
#endif
if (amqp_get_rpc_reply(a_conn).reply_type != AMQP_RESPONSE_NORMAL)
{
/* if a problem occurs on declaring the exchange we receive a channel_close with the
* error then we can log the error, respond a channel_close_ok and reopen it
* so we can work with the existing exchange.
*/
amqp_channel_close_ok_t chan_cls_ok;
amqp_channel_close_t *chan_cls =
(amqp_channel_close_t*)amqp_get_rpc_reply(a_conn).reply.decoded;
if (amqp_get_rpc_reply(a_conn).reply_type == AMQP_RESPONSE_LIBRARY_EXCEPTION) {
LogError(0, RS_RET_RABBITMQ_CHANNEL_ERR,
"omrabbitmq module %d/%d: disconnected while exchange declare (%d)",
self->iidx, self->widx, amqp_get_rpc_reply(a_conn).library_error);
return 0;
}
LogError(0, RS_RET_RABBITMQ_CHANNEL_ERR,
"omrabbitmq module %d/%d: exchange declare failed %.*s.", self->iidx, self->widx,
(int)chan_cls->reply_text.len, (char*)chan_cls->reply_text.bytes);
chan_cls_ok.dummy = '\0';
amqp_send_method(a_conn, 1, AMQP_CHANNEL_CLOSE_OK_METHOD, &chan_cls_ok);
/* reopen the communication channel in case of error it should be close by server*/
amqp_channel_open(a_conn, 1);
if (amqp_get_rpc_reply(a_conn).reply_type != AMQP_RESPONSE_NORMAL)
{
LogError(0, RS_RET_RABBITMQ_CHANNEL_ERR, "omrabbitmq module %d/%d: "
"open channel failed.", self->iidx, self->widx);
return 0;
}
}
}
/* release the buffers if possible */
amqp_maybe_release_buffers(a_conn);
return 1;
}
/* This method establish a new connection
* @self pointer on the worker datas
* @server pointer on the server datas (preferred or backup)
* @return the connection state or NULL on error
*/
static amqp_connection_state_t tryConnection(wrkrInstanceData_t *self, server_t *server)
{
int retconn = 0;
struct timeval delay;
delay.tv_sec = 1;
delay.tv_usec = 0;
amqp_socket_t *sockfd = NULL;
amqp_connection_state_t a_conn = amqp_new_connection();
if (a_conn) {
if (self->pData->ssl) {
if (!self->pData->initOpenSSL) {
// prevent OpenSSL double initialization
amqp_set_initialize_ssl_library(0);
}
sockfd = amqp_ssl_socket_new(a_conn);
} else {
sockfd = amqp_tcp_socket_new(a_conn);
}
}
if (sockfd)
{
if (self->pData->ssl) {
#if (AMQP_VERSION_MAJOR == 0) && (AMQP_VERSION_MINOR < 8)
amqp_ssl_socket_set_verify(sockfd, self->pData->verifyPeer);
#else
amqp_ssl_socket_set_verify_peer(sockfd, self->pData->verifyPeer);
amqp_ssl_socket_set_verify_hostname(sockfd, self->pData->verifyHostname);
#endif
if (self->pData->caCert) {
amqp_ssl_socket_set_cacert(sockfd, self->pData->caCert);
}
}
LogError(0, RS_RET_RABBITMQ_CHANNEL_ERR,
"omrabbitmq module %d/%d: server %s port %d.", self->iidx, self->widx,
server->host, server->port);
#if defined(_AIX)
retconn = amqp_socket_open(sockfd, server->host, server->port);
#else
retconn = amqp_socket_open_noblock(sockfd, (const char*)server->host, server->port, &delay);
#endif
}
if (retconn == AMQP_STATUS_OK && amqp_authenticate(self, a_conn))
return a_conn;
/* the connection failed so free it and return NULL */
amqp_connection_close(a_conn, 200);
amqp_destroy_connection(a_conn);
#if ((AMQP_VERSION_MAJOR == 0) && (AMQP_VERSION_MINOR > 8)) || (AMQP_VERSION_MAJOR > 0)
if (self->pData->ssl && self->pData->initOpenSSL) {
amqp_uninitialize_ssl_library();
}
#endif
return NULL;
}
static int manage_connection(wrkrInstanceData_t *self, amqp_frame_t *pFrame)
{
int result;
pthread_mutex_unlock(&self->send_mutex);
do {
if (self->serverActive == &self->serverBackup)
{
amqp_connection_state_t new_conn;
struct timeval delay;
/* The worker is connected to the backup server.
* next_check function compute the delay before trying to recover
* the connection to the preferred server according to recover_policy
*/
delay.tv_sec = next_check(&self->recover_policy, self->last_failback);
delay.tv_usec = 0;
result = amqp_simple_wait_frame_noblock(self->a_conn, pFrame, &delay);
/* if connected to backup server then check if usual server is alive.
* if so then disconnect from backup */
if (result == AMQP_STATUS_TIMEOUT &&
(new_conn = tryConnection(self,
&(self->serverPrefered.s)))
!= NULL) {
/* connection is re-established to preferred server so
* swap connections */
amqp_connection_state_t old_conn = self->a_conn;
/* now lock to avoid message publishing. */
pthread_mutex_lock(&self->send_mutex);
self->a_conn = new_conn;
self->serverActive = &self->serverPrefered;
self->serverActive->failures = 0;
pthread_mutex_unlock(&self->send_mutex);
/* back to unlock mode */
DBGPRINTF("omrabbitmq module %d: reconnects to usual server.\n",
self->iidx);
amqp_connection_close(old_conn, 200);
amqp_destroy_connection(old_conn);
#if ((AMQP_VERSION_MAJOR == 0) && (AMQP_VERSION_MINOR > 8)) || (AMQP_VERSION_MAJOR > 0)
if (self->pData->ssl && self->pData->initOpenSSL) {
amqp_uninitialize_ssl_library();
}
#endif
}
} else {
result = amqp_simple_wait_frame(self->a_conn, pFrame);
}
} while(result == AMQP_STATUS_TIMEOUT);
/* now lock the mutex to avoid message publishing. */
pthread_mutex_lock(&self->send_mutex);
return result;
}
static void send_connection_close(amqp_connection_state_t state) {
amqp_connection_close_t *req = malloc(sizeof(amqp_connection_close_t));
memset(req, 0, sizeof(amqp_connection_close_t));
req->reply_code = 200;
req->reply_text.bytes = (void*)"200";
req->reply_text.len = 3;
req->class_id = (uint16_t)(AMQP_CONNECTION_CLOSE_METHOD >> 16);
req->method_id = (uint16_t)(AMQP_CONNECTION_CLOSE_METHOD & 0xFFFF);
amqp_send_method(state, 0, AMQP_CONNECTION_CLOSE_METHOD, req);
free(req);
}
static void send_channel_close(amqp_connection_state_t state, amqp_channel_t ch) {
amqp_channel_close_t *req = malloc(sizeof(amqp_channel_close_t));
memset(req, 0, sizeof(amqp_channel_close_t));
req->reply_code = 200;
req->reply_text.bytes = (void*)"200";
req->reply_text.len = 3;
req->class_id = (uint16_t)(AMQP_CHANNEL_CLOSE_METHOD >> 16);
req->method_id = (uint16_t)(AMQP_CHANNEL_CLOSE_METHOD & 0xFFFF);
amqp_send_method(state, ch, AMQP_CHANNEL_CLOSE_METHOD, req);
free(req);
}
static void send_connection_close_ok(amqp_connection_state_t state) {
amqp_connection_close_ok_t *req = malloc(sizeof(amqp_connection_close_ok_t));
memset(req, 0, sizeof(amqp_connection_close_ok_t));
req->dummy = '\0';
amqp_send_method(state, 0, AMQP_CONNECTION_CLOSE_OK_METHOD, req);
free(req);
}
static void send_channel_close_ok(amqp_connection_state_t state, amqp_channel_t ch) {
amqp_channel_close_ok_t *req = malloc(sizeof(amqp_channel_close_ok_t));
memset(req, 0, sizeof(amqp_channel_close_ok_t));
req->dummy = '\0';
amqp_send_method(state, ch, AMQP_CHANNEL_CLOSE_OK_METHOD, req);
free(req);
}
/* run_connection_routine is the thread monitoring of the rabbitmq connection.
* This method manage reconnection to preferred and backup servers apply the recover_policy
*/
static void* run_connection_routine(void* arg)
{
wrkrInstanceData_t *self = (wrkrInstanceData_t *) arg;
amqp_frame_t frm;
int result;
self->connected = 0;
self->channel_opened = 0;
rsRetVal state_out = RS_RET_SUSPENDED;
dbgSetThrdName((uchar*)"amqp connection");
/* now lock to avoid message publishing during part of the thread loop */
pthread_mutex_lock(&self->send_mutex);
self->thread_running = 1;
self->state = RS_RET_OK;
srSleep(0,100);
DBGPRINTF("omrabbitmq module %d/%d: connection thread started\n", self->iidx, self->widx);
int go_on = self->go_on;
while (go_on) // this loop is used to reconnect on connection failure
{
if (self->a_conn != NULL)
{
amqp_connection_close(self->a_conn, 200);
amqp_destroy_connection(self->a_conn);
#if ((AMQP_VERSION_MAJOR == 0) && (AMQP_VERSION_MINOR > 8)) || (AMQP_VERSION_MAJOR > 0)
if (self->pData->ssl && self->pData->initOpenSSL) {
amqp_uninitialize_ssl_library();
}
#endif
}
self->a_conn = NULL;
if (!self->go_on)
{
go_on = 0;
state_out = RS_RET_DISABLE_ACTION;
continue; /* lets go back to wile (go_on) and leave cleanly */
}
if (self->serverActive == &self->serverBackup) {
self->serverBackup.failures = 0;
self->serverPrefered.failures = 0;
self->serverActive = &self->serverPrefered;
}
do { /* this loop tries 3 times per server before switching servers */
if ((self->a_conn = tryConnection(self, &(self->serverActive->s))) != NULL) {
self->serverActive->failures = 0;
} else {
/* set 1 second before retry */
struct timeval delay;
delay.tv_sec = 1;
delay.tv_usec = 0;
self->serverActive->failures++;
/* if 3 tries */
if (self->serverActive->failures == 3) {
if (!self->serverBackup.s.host || self->serverBackup.failures == 3)
{
LogError(0, RS_RET_RABBITMQ_CONN_ERR, "omrabbitmq module connection "
"failed 3 times on each server.");
}
if (self->serverActive == &self->serverBackup) {
self->serverBackup.failures = 0;
self->serverPrefered.failures = 0;
self->serverActive = &self->serverPrefered;
} else {
/* on usual server switch to backup server */
if (self->serverBackup.s.host)
self->serverActive = &self->serverBackup;
else
self->serverPrefered.failures = 0;
}
/* set 5 second before new round trip */
delay.tv_sec = 5;
}
select(0,NULL,NULL,NULL,&delay);
}
}
while (self->a_conn == NULL && self->go_on);
if (!self->go_on)
{
go_on = 0;
state_out = RS_RET_DISABLE_ACTION;
continue; /* lets go back to wile (go_on) and leave cleanly */
}
/* signal that the thread is started */
pthread_cond_signal(&self->cond);
self->connected = 1;
self->channel_opened = 1;
DBGPRINTF("omrabbitmq module %d: connected.\n", self->iidx);
self->state = RS_RET_OK;
if (self->serverActive == &self->serverBackup)
self->last_failback = time(NULL);
while (self->connected) // this loop is used to manage an established connection
{
result = manage_connection(self, &frm);
switch (result)
{
case AMQP_STATUS_NO_MEMORY:
LogError(0, RS_RET_OUT_OF_MEMORY, "omrabbitmq module %d/%d: no memory "
": aborting module.", self->iidx, self->widx);
go_on = 0; /* non recoverable error let's go out */
self->connected = 0;
state_out = RS_RET_DISABLE_ACTION;
break;
case AMQP_STATUS_BAD_AMQP_DATA:
LogError(0, RS_RET_RABBITMQ_CONN_ERR, "omrabbitmq module %d/%d: bad "
"data received : reconnect.", self->iidx, self->widx);
self->connected = 0;
break;
case AMQP_STATUS_SOCKET_ERROR:
LogError(0, RS_RET_RABBITMQ_CONN_ERR, "omrabbitmq module %d/%d: Socket"
" error : reconnect.", self->iidx, self->widx);
self->connected = 0;
break;
case AMQP_STATUS_CONNECTION_CLOSED:
LogError(0, RS_RET_OUT_OF_MEMORY, "omrabbitmq module %d/%d: Connection"
" closed : reconnect.", self->iidx, self->widx);
self->connected = 0;
break;
case AMQP_STATUS_OK:
/* perhaps not a frame type so ignore it */
if (frm.frame_type == AMQP_FRAME_METHOD)
{
amqp_method_number_t id = frm.payload.method.id;
/* now handle frames from the server */
switch (id)
{
case AMQP_CONNECTION_CLOSE_OK_METHOD:
/* We asked to close the connection and server has responded to us */
self->connected = 0;
go_on = 0;
break;
case AMQP_CHANNEL_CLOSE_OK_METHOD:
/* We asked to close the channel and server has responded to us */
send_connection_close(self->a_conn);
self->channel_opened = 0;
break;
case AMQP_CHANNEL_CLOSE_METHOD:
/* the server wants to close the channel then the connection */
LogMsg(0, RS_RET_OK, LOG_WARNING,"omrabbitmq module %d/%d: "
"Close Channel Received (%X).", self->iidx, self->widx, id);
/* answer the server request & send the method */
send_channel_close_ok(self->a_conn, frm.channel);
self->channel_opened = 0;
break;
case AMQP_CONNECTION_CLOSE_METHOD:
/* the server want to close the connection */
LogMsg(0, RS_RET_OK, LOG_WARNING, "omrabbitmq module %d/%d: "
"Close Connection Received (%X).", self->iidx, self->widx, id);
/* answer the server request */
send_connection_close_ok(self->a_conn);
self->connected = 0;
break;
default :
LogMsg(0, RS_RET_OK, LOG_WARNING, "omrabbitmq module %d/%d: "
"Unmanaged amqp method received (%X) : ignored.",
self->iidx, self->widx, id);
} /* switch (frm.payload.method.id) */
} /* if (frm.frame_type == AMQP_FRAME_METHOD) */
break;
} /* switch (result) */
}
}
self->state = state_out;
/* The core ask to die so let's disconnect */
if (self->a_conn != NULL)
{
if (self->channel_opened)
amqp_channel_close(self->a_conn, 1, 200);
if (self->connected)
amqp_connection_close(self->a_conn, 200);
amqp_destroy_connection(self->a_conn);
self->a_conn = NULL;
#if ((AMQP_VERSION_MAJOR == 0) && (AMQP_VERSION_MINOR > 8)) || (AMQP_VERSION_MAJOR > 0)
if (self->pData->ssl && self->pData->initOpenSSL) {
amqp_uninitialize_ssl_library();
}
#endif
}
self->thread_running = 0;
/* Finishing by unlocking before the end of the thread */
pthread_mutex_unlock(&self->send_mutex);
/* Now notify the worker that this thread is stopping */
pthread_cond_signal(&self->cond);
return NULL;
}
/* ============================================================================================
* Main thread
* ============================================================================================
*/
static rsRetVal startAMQPConnection(wrkrInstanceData_t *self)
{
DEFiRet;
pthread_mutex_lock(&self->send_mutex);
self->go_on = 1;
if (self->thread_running == 0)
{
if (!pthread_create(&self->thread, NULL, run_connection_routine, self))
{
pthread_cond_wait(&self->cond,&self->send_mutex);
iRet = self->state;
}else{
iRet = RS_RET_DISABLE_ACTION;
}
}
pthread_mutex_unlock(&self->send_mutex);
RETiRet;
}
static void closeAMQPConnection(wrkrInstanceData_t *self)
{
if (!self || !self->a_conn) return;
void *ret;
/* Now locks to allow exclusive access to sock */
pthread_mutex_lock(&self->send_mutex);
self->go_on = 0;
/* send the method */
if (self->a_conn)
{
if (self->channel_opened){
send_channel_close(self->a_conn, 0);
} else {
send_connection_close(self->a_conn);
}
}
/* Release the lock */
pthread_mutex_unlock(&self->send_mutex);
/* Now wvait for the thread to stop */
pthread_join(self->thread, &ret);
}
/*
* Report general error
*/
static int manage_error(int x, char const *context)
{
int retVal = 0; // false
if (x < 0) {
#if (AMQP_VERSION_MINOR >= 4)
const char *errstr = amqp_error_string2(-x);
LogError(0, RS_RET_ERR, "omrabbitmq: %s: %s", context, errstr);
#else
char *errstr = amqp_error_string(-x);
LogError(0, RS_RET_ERR, "omrabbitmq: %s: %s", context, errstr);
free(errstr);
#endif
retVal = 1; // true
}
return retVal;
}
static rsRetVal publishRabbitMQ(wrkrInstanceData_t *self, amqp_bytes_t exchange,
amqp_bytes_t routing_key, amqp_basic_properties_t *p_amqp_props,
amqp_bytes_t body_bytes)
{
DEFiRet;
/* locks to allow exclusive access to connection */
if (mode_test > 0) {
struct timeval tv;
tv.tv_sec = mode_test/1000;
tv.tv_usec = mode_test%1000 * 1000;
select(0, NULL, NULL, NULL, &tv);
}
pthread_mutex_lock(&self->send_mutex);
if (self->state != RS_RET_OK)
ABORT_FINALIZE(self->state);
if (!self->a_conn){
ABORT_FINALIZE(RS_RET_RABBITMQ_CONN_ERR);
}
if (manage_error(amqp_basic_publish(self->a_conn, 1, exchange, routing_key,
0, 0, p_amqp_props, body_bytes), "amqp_basic_publish")) {
/* error already notified */
FINALIZE;
}
finalize_it:
/* release exclusive access to connection */
pthread_mutex_unlock(&self->send_mutex);
RETiRet;
}
BEGINdoAction
int iLen;
CODESTARTdoAction
/* The first element is a smsg_t pointer */
smsg_t **pMsg = (smsg_t **)pMsgData;
smsg_t *msg = pMsg[0];
amqp_bytes_t body_bytes;
amqp_basic_properties_t *amqp_props_msg;
if (!pWrkrData->pData->idx_body_template)
{
/* No body template so send it as rawmsg */
getRawMsg(msg, (uchar**)(&body_bytes.bytes), &iLen);
body_bytes.len = (size_t)iLen;
amqp_props_msg = &pWrkrData->pData->amqp_props_plaintext;
}
else
{
/* we have a body template */
body_bytes = cstring_bytes((char*)ppString[pWrkrData->pData->idx_body_template]);
amqp_props_msg = &pWrkrData->pData->amqp_props_tpl_type;
}
if (pWrkrData->pData->populate_properties) {
/* populate amqp message properties */
msgPropDescr_t pProp;
int i, custom = 0;
amqp_basic_properties_t amqp_props;
memcpy(&amqp_props, amqp_props_msg, sizeof(amqp_basic_properties_t));
/* list and mapping of smsg to amqp properties */
msg2amqp_props_t prop_list[] = {
{ PROP_SYSLOGFACILITY_TEXT, "facility", NULL, 0 },
{ PROP_SYSLOGSEVERITY_TEXT, "severity", NULL, 0 },
{ PROP_HOSTNAME, "hostname", NULL, 0 },
{ PROP_FROMHOST, "fromhost", NULL, 0 },
{ PROP_SYSLOGTAG, NULL, &(amqp_props.app_id), AMQP_BASIC_APP_ID_FLAG }
};
int len = sizeof(prop_list)/sizeof(msg2amqp_props_t);
uchar *val[sizeof(prop_list)/sizeof(msg2amqp_props_t)];
rs_size_t valLen[sizeof(prop_list)/sizeof(msg2amqp_props_t)];
unsigned short mustBeFreed[sizeof(prop_list)/sizeof(msg2amqp_props_t)];
struct amqp_table_entry_t_ tab_entries[sizeof(prop_list)/sizeof(msg2amqp_props_t)];
amqp_props.headers.entries = tab_entries;
amqp_props.timestamp = (uint64_t)datetime.syslogTime2time_t(&msg->tTIMESTAMP);
amqp_props._flags |= AMQP_BASIC_TIMESTAMP_FLAG;
for (i=0; i<len; i++)
{
/* for each msg property in list get the value and initialize flags */
pProp.id = prop_list[i].id;
valLen[i] = 0;
mustBeFreed[i] = 0;
val[i] = (uchar*)MsgGetProp(msg, NULL, &pProp, &(valLen[i]), &(mustBeFreed[i]), NULL);
if (val[i] && *val[i])
{
if (prop_list[i].name)
{
/* custom amqp properties */
tab_entries[custom].key = amqp_cstring_bytes(prop_list[i].name);
tab_entries[custom].value.kind = AMQP_FIELD_KIND_UTF8;
tab_entries[custom].value.value.bytes = amqp_cstring_bytes((char*)val[i]);
amqp_props._flags |= AMQP_BASIC_HEADERS_FLAG;
custom++;
} else {
/* standard amqp properties*/
prop_list[i].standardprop->bytes = val[i];
prop_list[i].standardprop->len = (size_t)valLen[i];
amqp_props._flags |= prop_list[i].flag;
}
}
}
amqp_props.headers.num_entries = custom;
/* CHKiRet could not be used because we need to release allocations */
iRet = publishRabbitMQ(pWrkrData, pWrkrData->pData->exchange,
(pWrkrData->pData->routing_key_template)?
cstring_bytes((char*)ppString[pWrkrData->pData->idx_routing_key_template])
: pWrkrData->pData->routing_key,
&amqp_props, body_bytes);
for (i=0; i<len; i++)
if (mustBeFreed[i]) free(val[i]);
}
else
{
/* As CHKiRet could not be used earlier, iRet is directly used again */
iRet = publishRabbitMQ(pWrkrData, pWrkrData->pData->exchange,
(pWrkrData->pData->routing_key_template)?
cstring_bytes((char*)ppString[pWrkrData->pData->idx_routing_key_template])
: pWrkrData->pData->routing_key,
amqp_props_msg, body_bytes);
}
ENDdoAction
BEGINtryResume
CODESTARTtryResume
iRet = startAMQPConnection(pWrkrData);
ENDtryResume
BEGINcreateInstance
void *env_var;
CODESTARTcreateInstance
if ((env_var = getenv("OMRABBITMQ_TEST")) != NULL)
mode_test = atoi(env_var);
memset(pData, 0, sizeof(instanceData));
pData->iidx = ++instance_counter;
pData->delivery_mode = 2;
pData->exchange_type = NULL;
pData->durable = 0;
pData->auto_delete = 1;
pData->ssl = 0;
pData->initOpenSSL = 0;
pData->verifyPeer = 0;
pData->verifyHostname = 0;
pData->caCert = NULL;
pData->heartbeat = 0;
ENDcreateInstance
BEGINfreeInstance
CODESTARTfreeInstance
/* this is a cleanup callback. All dynamically-allocated resources
* in instance data must be cleaned up here. Prime examples are
* malloc()ed memory, file & database handles and the like.
*/
if (pData->exchange.bytes) free(pData->exchange.bytes);
if (pData->routing_key.bytes) free(pData->routing_key.bytes);
if (pData->routing_key_template) free(pData->routing_key_template);
if (pData->body_template) free(pData->body_template);
if (pData->expiration.bytes) free(pData->expiration.bytes);
if (pData->content_type) free(pData->content_type);
if (pData->vhost) free(pData->vhost);
if (pData->user) free(pData->user);
if (pData->password) free(pData->password);
if (pData->exchange_type) free(pData->exchange_type);
if (pData->server1.host) free(pData->server1.host);
if (pData->caCert) free(pData->caCert);
ENDfreeInstance
BEGINisCompatibleWithFeature
CODESTARTisCompatibleWithFeature
/* use this to specify if select features are supported by this
* plugin. If not, the framework will handle that. Currently, only
* RepeatedMsgReduction ("last message repeated n times") is optional.
*/
if(eFeat == sFEATURERepeatedMsgReduction)
iRet = RS_RET_OK;
ENDisCompatibleWithFeature
BEGINdbgPrintInstInfo
CODESTARTdbgPrintInstInfo
/* permits to spit out some debug info */
dbgprintf("omrabbitmq instance : %d\n", pData->iidx);
if (pData->server2.host) {
dbgprintf("\thost1='%s' \n", pData->server1.host);
dbgprintf("\tport1=%d\n", pData->server1.port);
dbgprintf("\thost2='%s' \n", pData->server2.host);
dbgprintf("\tport2=%d\n", pData->server2.port);
dbgprintf("\tfailback policy :");
dbgprintf("\t\tusual server check interval=%ld s",
pData->recover_policy.return_check_interval);
dbgprintf("\t\tquick oscillation limit=%ld s",
pData->recover_policy.quick_oscillation_interval);
dbgprintf("\t\tmax number of oscillation=%d s",
pData->recover_policy.quick_oscillation_max);
dbgprintf("\t\tgraceful interval after quick oscillation detection=%ld s",
pData->recover_policy.graceful_interval);
}else{
dbgprintf("\thost='%s' \n", pData->server1.host);
dbgprintf("\tport=%d\n", pData->server1.port);
}
dbgprintf("\tvirtual_host='%s'\n", pData->vhost);
dbgprintf("\tuser='%s'\n", pData->user == NULL ? "(not configured)" : pData->user);
dbgprintf("\tpassword=(%sconfigured)\n", pData->password == NULL ? "not " : "");
dbgprintf("\tssl=%d\n", pData->ssl);
dbgprintf("\tinit_openssl=%d\n", pData->initOpenSSL);
dbgprintf("\tverify_peer=%d\n", pData->verifyPeer);
dbgprintf("\tverify_hostname=%d\n", pData->verifyHostname);
dbgprintf("\tca_cert='%s'\n", pData->caCert);
dbgprintf("\theartbeat_interval=%d\n", pData->heartbeat);
dbgprintf("\texchange='%*s'\n", (int)pData->exchange.len,
(char*)pData->exchange.bytes);
dbgprintf("\trouting_key='%*s'\n", (int)pData->routing_key.len,
(char*) pData->routing_key.bytes);
dbgprintf("\trouting_key_template='%s'\n", pData->routing_key_template);
dbgprintf("\tbody_template='%s'\n", pData->body_template);
dbgprintf("\texchange_type='%s'\n", pData->exchange_type);
dbgprintf("\tauto_delete=%d\n", pData->auto_delete);
dbgprintf("\tdurable=%d\n", pData->durable);
dbgprintf("\tpopulate_properties=%s\n", (pData->populate_properties)?"ON":"OFF");
dbgprintf((pData->delivery_mode == 1) ? "\tdelivery_mode=TRANSIENT\n":
"\tdelivery_mode=PERSISTENT\n");
if (pData->expiration.len == 0) {
dbgprintf("\texpiration=UNLIMITED\n");
}else{
dbgprintf("\texpiration=%*s\n",
(int)pData->expiration.len, (char*) pData->expiration.bytes);
}
ENDdbgPrintInstInfo
BEGINnewActInst
struct cnfparamvals *pvals;
int i;
char *host = NULL, *vhost= NULL, *user = NULL, *password = NULL, *recover = NULL;
int port = 0;
long long expiration = 0;
CODESTARTnewActInst
if((pvals = nvlstGetParams(lst, &actpblk, NULL)) == NULL) {
ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS);
}
CHKiRet(createInstance(&pData));
/* let read parameters */
for(i = 0 ; i < actpblk.nParams ; ++i) {
if (!pvals[i].bUsed)
continue;
if (!strcmp(actpblk.descr[i].name, "host")) {
host = (char*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "recover_policy")) {
recover = es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "port")) {
port = (int) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "virtual_host")) {
vhost = (char*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "user")) {
user = (char*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "password")) {
password = (char*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "ssl")) {
pData->ssl = (int) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "ca_cert")) {
pData->caCert = (char*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "heartbeat_interval")) {
pData->heartbeat = (int) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "init_openssl")) {
pData->initOpenSSL = (int) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "verify_peer")) {
pData->verifyPeer = (int) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "verify_hostname")) {
pData->verifyHostname = (int) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "exchange")) {
pData->exchange = cstring_bytes(es_str2cstr(pvals[i].val.d.estr, NULL));
} else if (!strcmp(actpblk.descr[i].name, "routing_key")) {
pData->routing_key = cstring_bytes(es_str2cstr(pvals[i].val.d.estr, NULL));
} else if (!strcmp(actpblk.descr[i].name, "routing_key_template")) {
pData->routing_key_template = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "populate_properties")) {
pData->populate_properties = (sbool) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "delivery_mode")) {
char *temp = (char*)es_str2cstr(pvals[i].val.d.estr, NULL);
if (temp){
if (!strcasecmp(temp, "TRANSIENT") || !strcmp(temp, "1")) {
pData->delivery_mode = 1;
} else { if (!strcasecmp(temp, "PERSISTENT") || !strcmp(temp, "2")) {
pData->delivery_mode = 2;
} else {
pData->delivery_mode = 0;
} }
free(temp);
}
} else if (!strcmp(actpblk.descr[i].name, "expiration")) {
expiration = pvals[i].val.d.n;
if (expiration > 0) {
char buf[40];
snprintf(buf, 40, "%lld", expiration);
#ifndef __clang_analyzer__
pData->expiration = cstring_bytes(strdup(buf));
#endif
}
} else if (!strcmp(actpblk.descr[i].name, "body_template")) {
pData->body_template = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "content_type")) {
pData->content_type = es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "exchange_type")) {
pData->exchange_type = es_str2cstr(pvals[i].val.d.estr, NULL);
} else if (!strcmp(actpblk.descr[i].name, "auto_delete")) {
pData->auto_delete = (int) pvals[i].val.d.n;
} else if (!strcmp(actpblk.descr[i].name, "durable")) {
pData->durable = (int) pvals[i].val.d.n;
} else {
LogError(0, RS_RET_INVALID_PARAMS,
"omrabbitmq module %d: program error, non-handled param '%s'\n",
pData->iidx, actpblk.descr[i].name);
}
}
/* let's check config validity */
if (host == NULL) {
LogError(0, RS_RET_INVALID_PARAMS, "omrabbitmq module %d disabled: parameter "
"host must be specified",
pData->iidx);
ABORT_FINALIZE(RS_RET_CONFIG_ERROR);
}
/* first if a template for routing_key is set let verify its existence */
if (pData->routing_key_template && tplFind(ourConf, (char*)pData->routing_key_template,
strlen((char*)pData->routing_key_template)) == NULL)
{
LogError(0, RS_RET_INVALID_PARAMS, "omrabbitmq module %d : template '%s'"
" used for routing key does not exist !",
pData->iidx, pData->routing_key_template);
ABORT_FINALIZE(RS_RET_CONFIG_ERROR);
}
/* an exchange must be defined */
if (pData->exchange.bytes == NULL) {
LogError(0, RS_RET_INVALID_PARAMS, "omrabbitmq module %d disabled: parameter "
"exchange must be specified",
pData->iidx);
ABORT_FINALIZE(RS_RET_CONFIG_ERROR);
}
/* a static or a template's routing_key must be defined */
if (pData->routing_key.bytes == NULL && pData->routing_key_template == NULL) {
LogError(0, RS_RET_INVALID_PARAMS, "omrabbitmq module %d disabled: "
"one of parameters routing_key or "
"routing_key_template must be specified", pData->iidx);
ABORT_FINALIZE(RS_RET_CONFIG_ERROR);
}
/* a valid delivery mode must be defined : a 0 means that an invalid value
* has been done */
if (!pData->delivery_mode)
{
LogError(0, RS_RET_CONF_PARAM_INVLD, "omrabbitmq module %d disabled: "
"parameter delivery_mode must be "
"TRANSIENT or PERSISTENT (default)", pData->iidx);
ABORT_FINALIZE(RS_RET_CONFIG_ERROR);
}
/* first if a template for message body is set let verify its existence */
if (pData->body_template && *pData->body_template &&
tplFind(ourConf, (char*)pData->body_template,
strlen((char*)pData->body_template)) == NULL)
{
LogError(0, RS_RET_CONF_PARAM_INVLD, "omrabbitmq module %d : template '%s'"
" used for body does not exist !",
pData->iidx, pData->body_template);
ABORT_FINALIZE(RS_RET_CONFIG_ERROR);
}
/* Let's define the size of the doAction tab */
CODE_STD_STRING_REQUESTnewActInst(1 + ((pData->routing_key_template) ? 1 : 0) +
((pData->body_template && *pData->body_template == '\0') ? 0 : 1));
/* Set the plain text message props */
memset(&pData->amqp_props_plaintext, 0, sizeof(amqp_basic_properties_t));
pData->amqp_props_plaintext._flags =
AMQP_BASIC_DELIVERY_MODE_FLAG | AMQP_BASIC_CONTENT_TYPE_FLAG;
pData->amqp_props_plaintext.delivery_mode = pData->delivery_mode;
/* persistent delivery mode */
pData->amqp_props_plaintext.content_type = amqp_cstring_bytes("plain/text");
if (pData->expiration.len)
{
pData->amqp_props_plaintext._flags |= AMQP_BASIC_EXPIRATION_FLAG;
pData->amqp_props_plaintext.expiration = pData->expiration;
}
memcpy(&pData->amqp_props_tpl_type, &pData->amqp_props_plaintext,
sizeof(amqp_basic_properties_t));
/* The first position of doAction tab will contain the internal message */
CHKiRet(OMSRsetEntry(*ppOMSR, 0, NULL, OMSR_TPL_AS_MSG));
// RabbitMQ properties initialization
if (pData->routing_key_template)
{
pData->idx_routing_key_template = 1;
CHKiRet(OMSRsetEntry(*ppOMSR, 1,
(uchar*)strdup((const char *)pData->routing_key_template),
OMSR_NO_RQD_TPL_OPTS));
}
/* if pData->body_template is NULL (not defined) then let's use former
* json format if pData->body_template is not an empty string then let's
* use it. In this case the content type is defined either
* by the template name or the user defined content_type if set
* otherwise raw data (unformatted) are sent this is done setting
* pData->idx_body_template to 0 */
if (pData->body_template == NULL)
{ /* no template */
DBGPRINTF("Body_template is using default StdJSONFmt definition.\n");
pData->idx_body_template = pData->idx_routing_key_template + 1;
CHKiRet(OMSRsetEntry(*ppOMSR, pData->idx_body_template,
(uchar*)strdup(" StdJSONFmt"), OMSR_NO_RQD_TPL_OPTS));
pData->amqp_props_tpl_type.content_type = amqp_cstring_bytes("application/json");
}
else if (*pData->body_template)
{
pData->idx_body_template = pData->idx_routing_key_template + 1;
CHKiRet(OMSRsetEntry(*ppOMSR, pData->idx_body_template,
(uchar*)strdup((const char *)pData->body_template),
OMSR_NO_RQD_TPL_OPTS));
pData->amqp_props_tpl_type.content_type = amqp_cstring_bytes(
(pData->content_type)
? pData->content_type
: (char*)pData->body_template);
}else{
pData->idx_body_template = 0;
pData->amqp_props_tpl_type.content_type = amqp_cstring_bytes(
(pData->content_type)
? pData->content_type
:"raw");
}
/* treatment of the server parameter
* first the default port */
pData->server2.port = pData->server1.port = port ? port : 5672;
char *temp;
int p;
pData->server1.host = host;
/* Is there more than one server in parameter */
if ((pData->server2.host = strchr(pData->server1.host,' ')) != NULL)
{
*pData->server2.host++ ='\0';
/* is there a port with the second server */
if ((temp = strchr(pData->server2.host,':')) != NULL)
{
*temp++ ='\0';
p = atoi(temp);
if (p) pData->server2.port = p;
}
}
/* is there a port with the first/unique server */
if ((temp = strchr(pData->server1.host,':')) != NULL)
{
*temp++ ='\0';
p = atoi(temp);
if (p) pData->server1.port = p;
}
pData->vhost = vhost ? vhost : strdup("/");
pData->user = user ? user : strdup("");
pData->password = password ? password : strdup("");
init_recover(&pData->recover_policy, recover);
if (recover)
free(recover);
dbgPrintInstInfo(pData);
CODE_STD_FINALIZERnewActInst
cnfparamvalsDestruct(pvals, &actpblk);
ENDnewActInst
NO_LEGACY_CONF_parseSelectorAct
BEGINmodExit
CODESTARTmodExit
objRelease(glbl, CORE_COMPONENT);
objRelease(datetime, CORE_COMPONENT);
ENDmodExit
BEGINcreateWrkrInstance
CODESTARTcreateWrkrInstance
memset(pWrkrData, 0, sizeof(wrkrInstanceData_t));
pWrkrData->pData = pData;
pthread_mutex_init(&pWrkrData->send_mutex, NULL);
pthread_cond_init(&pWrkrData->cond, NULL);
pWrkrData->state = RS_RET_SUSPENDED;
pWrkrData->iidx = pData->iidx;
pWrkrData->widx = ++pData->nbWrkr;
memcpy(&(pWrkrData->recover_policy), &(pData->recover_policy),
sizeof(recover_t));
if (pData->server2.host && *pData->server2.host) {
time_t odd = time(NULL) % 2;
memcpy(&(pWrkrData->serverPrefered.s), (odd) ?
&pData->server1 : &pData->server2, sizeof(server_t));
memcpy(&(pWrkrData->serverBackup.s), (odd) ?
&pData->server2 : &pData->server1, sizeof(server_t));
}else{
memcpy(&(pWrkrData->serverPrefered.s), &pData->server1, sizeof(server_t));
}
pWrkrData->serverActive = &pWrkrData->serverPrefered;
startAMQPConnection(pWrkrData);
ENDcreateWrkrInstance
BEGINfreeWrkrInstance
CODESTARTfreeWrkrInstance
if (pWrkrData != NULL) {
closeAMQPConnection(pWrkrData);
pthread_mutex_destroy(&(pWrkrData->send_mutex));
pthread_cond_destroy(&(pWrkrData->cond));
}
ENDfreeWrkrInstance
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_OMOD_QUERIES
CODEqueryEtryPt_STD_OMOD8_QUERIES
CODEqueryEtryPt_STD_CONF2_OMOD_QUERIES
ENDqueryEtryPt
BEGINmodInit()
CODESTARTmodInit
*ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
CODEmodInit_QueryRegCFSLineHdlr
CHKiRet(objUse(glbl, CORE_COMPONENT));
CHKiRet(objUse(datetime, CORE_COMPONENT));
ENDmodInit
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