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asterisk/cdr/cdr_pgsql.c
Leif Madsen d4938a111e Introduce <support_level> tags in MODULEINFO. 
This change introduces MODULEINFO into many modules in Asterisk in order to show
the community support level for those modules. This is used by changes committed
to menuselect by Russell Bryant recently (r917 in menuselect). More information about
the support level types and what they mean is available on the wiki at
https://wiki.asterisk.org/wiki/display/AST/Asterisk+Module+Support+States

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@328209 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2011-07-14 20:13:06 +00:00

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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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