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asterisk/cdr/cdr_pgsql.c

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2003 - 2006
*
* Matthew D. Hardeman <mhardemn@papersoft.com>
* Adapted from the MySQL CDR logger originally by James Sharp
*
* Modified September 2003
* Matthew D. Hardeman <mhardemn@papersoft.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*!
* \file
* \brief PostgreSQL CDR logger
*
* \author Matthew D. Hardeman <mhardemn@papersoft.com>
* \extref PostgreSQL http://www.postgresql.org/
*
* See also
* \arg \ref Config_cdr
* \extref PostgreSQL http://www.postgresql.org/
* \ingroup cdr_drivers
*/
/*** MODULEINFO
<depend>pgsql</depend>
<support_level>extended</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <libpq-fe.h>
#include "asterisk/config.h"
#include "asterisk/channel.h"
#include "asterisk/cdr.h"
#include "asterisk/module.h"
#define DATE_FORMAT "'%Y-%m-%d %T'"
static const char name[] = "pgsql";
static const char config[] = "cdr_pgsql.conf";
static char *pghostname = NULL, *pgdbname = NULL, *pgdbuser = NULL, *pgpassword = NULL, *pgdbport = NULL, *table = NULL, *encoding = NULL, *tz = NULL;
static int connected = 0;
static int maxsize = 512, maxsize2 = 512;
AST_MUTEX_DEFINE_STATIC(pgsql_lock);
static PGconn *conn = NULL;
struct columns {
char *name;
char *type;
int len;
unsigned int notnull:1;
unsigned int hasdefault:1;
AST_RWLIST_ENTRY(columns) list;
};
static AST_RWLIST_HEAD_STATIC(psql_columns, columns);
#define LENGTHEN_BUF1(size) \
do { \
/* Lengthen buffer, if necessary */ \
if (ast_str_strlen(sql) + size + 1 > ast_str_size(sql)) { \
if (ast_str_make_space(&sql, ((ast_str_size(sql) + size + 3) / 512 + 1) * 512) != 0) { \
ast_log(LOG_ERROR, "Unable to allocate sufficient memory. Insert CDR failed.\n"); \
ast_free(sql); \
ast_free(sql2); \
AST_RWLIST_UNLOCK(&psql_columns); \
return -1; \
} \
} \
} while (0)
#define LENGTHEN_BUF2(size) \
do { \
if (ast_str_strlen(sql2) + size + 1 > ast_str_size(sql2)) { \
if (ast_str_make_space(&sql2, ((ast_str_size(sql2) + size + 3) / 512 + 1) * 512) != 0) { \
ast_log(LOG_ERROR, "Unable to allocate sufficient memory. Insert CDR failed.\n"); \
ast_free(sql); \
ast_free(sql2); \
AST_RWLIST_UNLOCK(&psql_columns); \
return -1; \
} \
} \
} while (0)
static int pgsql_log(struct ast_cdr *cdr)
{
struct ast_tm tm;
char *pgerror;
PGresult *result;
ast_mutex_lock(&pgsql_lock);
if ((!connected) && pghostname && pgdbuser && pgpassword && pgdbname) {
conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
if (PQstatus(conn) != CONNECTION_BAD) {
connected = 1;
if (PQsetClientEncoding(conn, encoding)) {
#ifdef HAVE_PGSQL_pg_encoding_to_char
ast_log(LOG_WARNING, "Failed to set encoding to '%s'. Encoding set to default '%s'\n", encoding, pg_encoding_to_char(PQclientEncoding(conn)));
#else
ast_log(LOG_WARNING, "Failed to set encoding to '%s'. Encoding set to default.\n", encoding);
#endif
}
} else {
pgerror = PQerrorMessage(conn);
ast_log(LOG_ERROR, "Unable to connect to database server %s. Calls will not be logged!\n", pghostname);
ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
PQfinish(conn);
conn = NULL;
}
}
if (connected) {
struct columns *cur;
struct ast_str *sql = ast_str_create(maxsize), *sql2 = ast_str_create(maxsize2);
char buf[257], escapebuf[513], *value;
int first = 1;
if (!sql || !sql2) {
if (sql) {
ast_free(sql);
}
if (sql2) {
ast_free(sql2);
}
return -1;
}
ast_str_set(&sql, 0, "INSERT INTO %s (", table);
ast_str_set(&sql2, 0, " VALUES (");
AST_RWLIST_RDLOCK(&psql_columns);
AST_RWLIST_TRAVERSE(&psql_columns, cur, list) {
/* For fields not set, simply skip them */
ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
if (strcmp(cur->name, "calldate") == 0 && !value) {
ast_cdr_getvar(cdr, "start", &value, buf, sizeof(buf), 0, 0);
}
if (!value) {
if (cur->notnull && !cur->hasdefault) {
/* Field is NOT NULL (but no default), must include it anyway */
LENGTHEN_BUF1(strlen(cur->name) + 2);
ast_str_append(&sql, 0, "%s\"%s\"", first ? "" : ",", cur->name);
LENGTHEN_BUF2(3);
ast_str_append(&sql2, 0, "%s''", first ? "" : ",");
first = 0;
}
continue;
}
LENGTHEN_BUF1(strlen(cur->name) + 2);
ast_str_append(&sql, 0, "%s\"%s\"", first ? "" : ",", cur->name);
if (strcmp(cur->name, "start") == 0 || strcmp(cur->name, "calldate") == 0) {
if (strncmp(cur->type, "int", 3) == 0) {
LENGTHEN_BUF2(13);
ast_str_append(&sql2, 0, "%s%ld", first ? "" : ",", (long) cdr->start.tv_sec);
} else if (strncmp(cur->type, "float", 5) == 0) {
LENGTHEN_BUF2(31);
ast_str_append(&sql2, 0, "%s%f", first ? "" : ",", (double)cdr->start.tv_sec + (double)cdr->start.tv_usec / 1000000.0);
} else {
/* char, hopefully */
LENGTHEN_BUF2(31);
ast_localtime(&cdr->start, &tm, tz);
ast_strftime(buf, sizeof(buf), DATE_FORMAT, &tm);
ast_str_append(&sql2, 0, "%s%s", first ? "" : ",", buf);
}
} else if (strcmp(cur->name, "answer") == 0) {
if (strncmp(cur->type, "int", 3) == 0) {
LENGTHEN_BUF2(13);
ast_str_append(&sql2, 0, "%s%ld", first ? "" : ",", (long) cdr->answer.tv_sec);
} else if (strncmp(cur->type, "float", 5) == 0) {
LENGTHEN_BUF2(31);
ast_str_append(&sql2, 0, "%s%f", first ? "" : ",", (double)cdr->answer.tv_sec + (double)cdr->answer.tv_usec / 1000000.0);
} else {
/* char, hopefully */
LENGTHEN_BUF2(31);
ast_localtime(&cdr->answer, &tm, tz);
ast_strftime(buf, sizeof(buf), DATE_FORMAT, &tm);
ast_str_append(&sql2, 0, "%s%s", first ? "" : ",", buf);
}
} else if (strcmp(cur->name, "end") == 0) {
if (strncmp(cur->type, "int", 3) == 0) {
LENGTHEN_BUF2(13);
ast_str_append(&sql2, 0, "%s%ld", first ? "" : ",", (long) cdr->end.tv_sec);
} else if (strncmp(cur->type, "float", 5) == 0) {
LENGTHEN_BUF2(31);
ast_str_append(&sql2, 0, "%s%f", first ? "" : ",", (double)cdr->end.tv_sec + (double)cdr->end.tv_usec / 1000000.0);
} else {
/* char, hopefully */
LENGTHEN_BUF2(31);
ast_localtime(&cdr->end, &tm, tz);
ast_strftime(buf, sizeof(buf), DATE_FORMAT, &tm);
ast_str_append(&sql2, 0, "%s%s", first ? "" : ",", buf);
}
} else if (strcmp(cur->name, "duration") == 0 || strcmp(cur->name, "billsec") == 0) {
if (cur->type[0] == 'i') {
/* Get integer, no need to escape anything */
ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
LENGTHEN_BUF2(13);
ast_str_append(&sql2, 0, "%s%s", first ? "" : ",", value);
} else if (strncmp(cur->type, "float", 5) == 0) {
struct timeval *when = cur->name[0] == 'd' ? &cdr->start : ast_tvzero(cdr->answer) ? &cdr->end : &cdr->answer;
LENGTHEN_BUF2(31);
ast_str_append(&sql2, 0, "%s%f", first ? "" : ",", (double) (ast_tvdiff_us(cdr->end, *when) / 1000000.0));
} else {
/* Char field, probably */
struct timeval *when = cur->name[0] == 'd' ? &cdr->start : ast_tvzero(cdr->answer) ? &cdr->end : &cdr->answer;
LENGTHEN_BUF2(31);
ast_str_append(&sql2, 0, "%s'%f'", first ? "" : ",", (double) (ast_tvdiff_us(cdr->end, *when) / 1000000.0));
}
} else if (strcmp(cur->name, "disposition") == 0 || strcmp(cur->name, "amaflags") == 0) {
if (strncmp(cur->type, "int", 3) == 0) {
/* Integer, no need to escape anything */
ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 1);
LENGTHEN_BUF2(13);
ast_str_append(&sql2, 0, "%s%s", first ? "" : ",", value);
} else {
/* Although this is a char field, there are no special characters in the values for these fields */
ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
LENGTHEN_BUF2(31);
ast_str_append(&sql2, 0, "%s'%s'", first ? "" : ",", value);
}
} else {
/* Arbitrary field, could be anything */
ast_cdr_getvar(cdr, cur->name, &value, buf, sizeof(buf), 0, 0);
if (strncmp(cur->type, "int", 3) == 0) {
long long whatever;
if (value && sscanf(value, "%30lld", &whatever) == 1) {
LENGTHEN_BUF2(26);
ast_str_append(&sql2, 0, "%s%lld", first ? "" : ",", whatever);
} else {
LENGTHEN_BUF2(2);
ast_str_append(&sql2, 0, "%s0", first ? "" : ",");
}
} else if (strncmp(cur->type, "float", 5) == 0) {
long double whatever;
if (value && sscanf(value, "%30Lf", &whatever) == 1) {
LENGTHEN_BUF2(51);
ast_str_append(&sql2, 0, "%s%30Lf", first ? "" : ",", whatever);
} else {
LENGTHEN_BUF2(2);
ast_str_append(&sql2, 0, "%s0", first ? "" : ",");
}
/* XXX Might want to handle dates, times, and other misc fields here XXX */
} else {
if (value)
PQescapeStringConn(conn, escapebuf, value, strlen(value), NULL);
else
escapebuf[0] = '\0';
LENGTHEN_BUF2(strlen(escapebuf) + 3);
ast_str_append(&sql2, 0, "%s'%s'", first ? "" : ",", escapebuf);
}
}
first = 0;
}
AST_RWLIST_UNLOCK(&psql_columns);
LENGTHEN_BUF1(ast_str_strlen(sql2) + 2);
ast_str_append(&sql, 0, ")%s)", ast_str_buffer(sql2));
ast_verb(11, "[%s]\n", ast_str_buffer(sql));
ast_debug(2, "inserting a CDR record.\n");
/* Test to be sure we're still connected... */
/* If we're connected, and connection is working, good. */
/* Otherwise, attempt reconnect. If it fails... sorry... */
if (PQstatus(conn) == CONNECTION_OK) {
connected = 1;
} else {
ast_log(LOG_ERROR, "Connection was lost... attempting to reconnect.\n");
PQreset(conn);
if (PQstatus(conn) == CONNECTION_OK) {
ast_log(LOG_ERROR, "Connection reestablished.\n");
connected = 1;
} else {
pgerror = PQerrorMessage(conn);
ast_log(LOG_ERROR, "Unable to reconnect to database server %s. Calls will not be logged!\n", pghostname);
ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
PQfinish(conn);
conn = NULL;
connected = 0;
ast_mutex_unlock(&pgsql_lock);
ast_free(sql);
ast_free(sql2);
return -1;
}
}
result = PQexec(conn, ast_str_buffer(sql));
if (PQresultStatus(result) != PGRES_COMMAND_OK) {
pgerror = PQresultErrorMessage(result);
ast_log(LOG_ERROR, "Failed to insert call detail record into database!\n");
ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
ast_log(LOG_ERROR, "Connection may have been lost... attempting to reconnect.\n");
PQreset(conn);
if (PQstatus(conn) == CONNECTION_OK) {
ast_log(LOG_ERROR, "Connection reestablished.\n");
connected = 1;
PQclear(result);
result = PQexec(conn, ast_str_buffer(sql));
if (PQresultStatus(result) != PGRES_COMMAND_OK) {
pgerror = PQresultErrorMessage(result);
ast_log(LOG_ERROR, "HARD ERROR! Attempted reconnection failed. DROPPING CALL RECORD!\n");
ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
}
}
ast_mutex_unlock(&pgsql_lock);
PQclear(result);
ast_free(sql);
ast_free(sql2);
return -1;
}
PQclear(result);
ast_free(sql);
ast_free(sql2);
}
ast_mutex_unlock(&pgsql_lock);
return 0;
}
static int unload_module(void)
{
struct columns *current;
ast_cdr_unregister(name);
PQfinish(conn);
if (pghostname) {
ast_free(pghostname);
}
if (pgdbname) {
ast_free(pgdbname);
}
if (pgdbuser) {
ast_free(pgdbuser);
}
if (pgpassword) {
ast_free(pgpassword);
}
if (pgdbport) {
ast_free(pgdbport);
}
if (table) {
ast_free(table);
}
if (encoding) {
ast_free(encoding);
}
if (tz) {
ast_free(tz);
}
AST_RWLIST_WRLOCK(&psql_columns);
while ((current = AST_RWLIST_REMOVE_HEAD(&psql_columns, list))) {
ast_free(current);
}
AST_RWLIST_UNLOCK(&psql_columns);
return 0;
}
static int config_module(int reload)
{
struct ast_variable *var;
char *pgerror;
struct columns *cur;
PGresult *result;
const char *tmp;
struct ast_config *cfg;
struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
if ((cfg = ast_config_load(config, config_flags)) == NULL || cfg == CONFIG_STATUS_FILEINVALID) {
ast_log(LOG_WARNING, "Unable to load config for PostgreSQL CDR's: %s\n", config);
return -1;
} else if (cfg == CONFIG_STATUS_FILEUNCHANGED) {
return 0;
}
if (!(var = ast_variable_browse(cfg, "global"))) {
ast_config_destroy(cfg);
return 0;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "hostname"))) {
ast_log(LOG_WARNING, "PostgreSQL server hostname not specified. Assuming unix socket connection\n");
tmp = ""; /* connect via UNIX-socket by default */
}
if (pghostname) {
ast_free(pghostname);
}
if (!(pghostname = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "dbname"))) {
ast_log(LOG_WARNING, "PostgreSQL database not specified. Assuming asterisk\n");
tmp = "asteriskcdrdb";
}
if (pgdbname) {
ast_free(pgdbname);
}
if (!(pgdbname = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "user"))) {
ast_log(LOG_WARNING, "PostgreSQL database user not specified. Assuming asterisk\n");
tmp = "asterisk";
}
if (pgdbuser) {
ast_free(pgdbuser);
}
if (!(pgdbuser = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "password"))) {
ast_log(LOG_WARNING, "PostgreSQL database password not specified. Assuming blank\n");
tmp = "";
}
if (pgpassword) {
ast_free(pgpassword);
}
if (!(pgpassword = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "port"))) {
ast_log(LOG_WARNING, "PostgreSQL database port not specified. Using default 5432.\n");
tmp = "5432";
}
if (pgdbport) {
ast_free(pgdbport);
}
if (!(pgdbport = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "table"))) {
ast_log(LOG_WARNING, "CDR table not specified. Assuming cdr\n");
tmp = "cdr";
}
if (table) {
ast_free(table);
}
if (!(table = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "encoding"))) {
ast_log(LOG_WARNING, "Encoding not specified. Assuming LATIN9\n");
tmp = "LATIN9";
}
if (encoding) {
ast_free(encoding);
}
if (!(encoding = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (!(tmp = ast_variable_retrieve(cfg, "global", "timezone"))) {
tmp = "";
}
if (tz) {
ast_free(tz);
tz = NULL;
}
if (!ast_strlen_zero(tmp) && !(tz = ast_strdup(tmp))) {
ast_config_destroy(cfg);
return -1;
}
if (option_debug) {
if (ast_strlen_zero(pghostname)) {
ast_debug(1, "using default unix socket\n");
} else {
ast_debug(1, "got hostname of %s\n", pghostname);
}
ast_debug(1, "got port of %s\n", pgdbport);
ast_debug(1, "got user of %s\n", pgdbuser);
ast_debug(1, "got dbname of %s\n", pgdbname);
ast_debug(1, "got password of %s\n", pgpassword);
ast_debug(1, "got sql table name of %s\n", table);
ast_debug(1, "got encoding of %s\n", encoding);
ast_debug(1, "got timezone of %s\n", tz);
}
conn = PQsetdbLogin(pghostname, pgdbport, NULL, NULL, pgdbname, pgdbuser, pgpassword);
if (PQstatus(conn) != CONNECTION_BAD) {
char sqlcmd[768];
char *fname, *ftype, *flen, *fnotnull, *fdef;
int i, rows, version;
ast_debug(1, "Successfully connected to PostgreSQL database.\n");
connected = 1;
if (PQsetClientEncoding(conn, encoding)) {
#ifdef HAVE_PGSQL_pg_encoding_to_char
ast_log(LOG_WARNING, "Failed to set encoding to '%s'. Encoding set to default '%s'\n", encoding, pg_encoding_to_char(PQclientEncoding(conn)));
#else
ast_log(LOG_WARNING, "Failed to set encoding to '%s'. Encoding set to default.\n", encoding);
#endif
}
version = PQserverVersion(conn);
if (version >= 70300) {
char *schemaname, *tablename;
if (strchr(table, '.')) {
schemaname = ast_strdupa(table);
tablename = strchr(schemaname, '.');
*tablename++ = '\0';
} else {
schemaname = "";
tablename = table;
}
/* Escape special characters in schemaname */
if (strchr(schemaname, '\\') || strchr(schemaname, '\'')) {
char *tmp = schemaname, *ptr;
ptr = schemaname = alloca(strlen(tmp) * 2 + 1);
for (; *tmp; tmp++) {
if (strchr("\\'", *tmp)) {
*ptr++ = *tmp;
}
*ptr++ = *tmp;
}
*ptr = '\0';
}
/* Escape special characters in tablename */
if (strchr(tablename, '\\') || strchr(tablename, '\'')) {
char *tmp = tablename, *ptr;
ptr = tablename = alloca(strlen(tmp) * 2 + 1);
for (; *tmp; tmp++) {
if (strchr("\\'", *tmp)) {
*ptr++ = *tmp;
}
*ptr++ = *tmp;
}
*ptr = '\0';
}
snprintf(sqlcmd, sizeof(sqlcmd), "SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod FROM (((pg_catalog.pg_class c INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace AND c.relname = '%s' AND n.nspname = %s%s%s) INNER JOIN pg_catalog.pg_attribute a ON (NOT a.attisdropped) AND a.attnum > 0 AND a.attrelid = c.oid) INNER JOIN pg_catalog.pg_type t ON t.oid = a.atttypid) LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum ORDER BY n.nspname, c.relname, attnum",
tablename,
ast_strlen_zero(schemaname) ? "" : "'", ast_strlen_zero(schemaname) ? "current_schema()" : schemaname, ast_strlen_zero(schemaname) ? "" : "'");
} else {
snprintf(sqlcmd, sizeof(sqlcmd), "SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod FROM pg_class c, pg_type t, pg_attribute a LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum WHERE c.oid = a.attrelid AND a.atttypid = t.oid AND (a.attnum > 0) AND c.relname = '%s' ORDER BY c.relname, attnum", table);
}
/* Query the columns */
result = PQexec(conn, sqlcmd);
if (PQresultStatus(result) != PGRES_TUPLES_OK) {
pgerror = PQresultErrorMessage(result);
ast_log(LOG_ERROR, "Failed to query database columns: %s\n", pgerror);
PQclear(result);
unload_module();
return AST_MODULE_LOAD_DECLINE;
}
rows = PQntuples(result);
if (rows == 0) {
ast_log(LOG_ERROR, "cdr_pgsql: Failed to query database columns. No columns found, does the table exist?\n");
PQclear(result);
unload_module();
return AST_MODULE_LOAD_DECLINE;
}
for (i = 0; i < rows; i++) {
fname = PQgetvalue(result, i, 0);
ftype = PQgetvalue(result, i, 1);
flen = PQgetvalue(result, i, 2);
fnotnull = PQgetvalue(result, i, 3);
fdef = PQgetvalue(result, i, 4);
if (atoi(flen) == -1) {
/* For varchar columns, the maximum length is encoded in a different field */
flen = PQgetvalue(result, i, 5);
}
ast_verb(4, "Found column '%s' of type '%s'\n", fname, ftype);
cur = ast_calloc(1, sizeof(*cur) + strlen(fname) + strlen(ftype) + 2);
if (cur) {
sscanf(flen, "%30d", &cur->len);
cur->name = (char *)cur + sizeof(*cur);
cur->type = (char *)cur + sizeof(*cur) + strlen(fname) + 1;
strcpy(cur->name, fname);
strcpy(cur->type, ftype);
if (*fnotnull == 't') {
cur->notnull = 1;
} else {
cur->notnull = 0;
}
if (!ast_strlen_zero(fdef)) {
cur->hasdefault = 1;
} else {
cur->hasdefault = 0;
}
AST_RWLIST_INSERT_TAIL(&psql_columns, cur, list);
}
}
PQclear(result);
} else {
pgerror = PQerrorMessage(conn);
ast_log(LOG_ERROR, "Unable to connect to database server %s. CALLS WILL NOT BE LOGGED!!\n", pghostname);
ast_log(LOG_ERROR, "Reason: %s\n", pgerror);
connected = 0;
}
ast_config_destroy(cfg);
return ast_cdr_register(name, ast_module_info->description, pgsql_log);
}
static int load_module(void)
{
return config_module(0) ? AST_MODULE_LOAD_DECLINE : 0;
}
static int reload(void)
{
return config_module(1);
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PostgreSQL CDR Backend",
.load = load_module,
.unload = unload_module,
.reload = reload,
.load_pri = AST_MODPRI_CDR_DRIVER,
);
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