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asterisk/cdr/cdr_adaptive_odbc.c

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2007, Tilghman Lesher
*
* Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.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 Adaptive ODBC CDR backend
*
* \author Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
* \ingroup cdr_drivers
*/
/*** MODULEINFO
<depend>unixodbc</depend>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <sys/types.h>
#include <time.h>
#include <sql.h>
#include <sqlext.h>
#include <sqltypes.h>
#include "asterisk/config.h"
#include "asterisk/channel.h"
#include "asterisk/lock.h"
#include "asterisk/linkedlists.h"
#include "asterisk/res_odbc.h"
#include "asterisk/cdr.h"
#include "asterisk/module.h"
#define CONFIG "cdr_adaptive_odbc.conf"
static char *name = "Adaptive ODBC";
/* Optimization to reduce number of memory allocations */
static int maxsize = 512, maxsize2 = 512;
struct columns {
char *name;
char *cdrname;
char *filtervalue;
SQLSMALLINT type;
SQLINTEGER size;
SQLSMALLINT decimals;
SQLSMALLINT radix;
SQLSMALLINT nullable;
SQLINTEGER octetlen;
AST_LIST_ENTRY(columns) list;
};
struct tables {
char *connection;
char *table;
AST_LIST_HEAD_NOLOCK(odbc_columns, columns) columns;
AST_RWLIST_ENTRY(tables) list;
};
static AST_RWLIST_HEAD_STATIC(odbc_tables, tables);
static int load_config(void)
{
struct ast_config *cfg;
struct ast_variable *var;
const char *tmp, *catg;
struct tables *tableptr;
struct columns *entry;
struct odbc_obj *obj;
char columnname[80];
char connection[40];
char table[40];
int lenconnection, lentable;
SQLLEN sqlptr;
int res = 0;
SQLHSTMT stmt = NULL;
struct ast_flags config_flags = { 0 }; /* Part of our config comes from the database */
cfg = ast_config_load(CONFIG, config_flags);
if (!cfg) {
ast_log(LOG_WARNING, "Unable to load " CONFIG ". No adaptive ODBC CDRs.\n");
return -1;
}
for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
var = ast_variable_browse(cfg, catg);
if (!var)
continue;
if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "connection"))) {
ast_log(LOG_WARNING, "No connection parameter found in '%s'. Skipping.\n", catg);
continue;
}
ast_copy_string(connection, tmp, sizeof(connection));
lenconnection = strlen(connection);
/* When loading, we want to be sure we can connect. */
obj = ast_odbc_request_obj(connection, 1);
if (!obj) {
ast_log(LOG_WARNING, "No such connection '%s' in the '%s' section of " CONFIG ". Check res_odbc.conf.\n", connection, catg);
continue;
}
if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "table"))) {
ast_log(LOG_NOTICE, "No table name found. Assuming 'cdr'.\n");
tmp = "cdr";
}
ast_copy_string(table, tmp, sizeof(table));
lentable = strlen(table);
res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
ast_log(LOG_WARNING, "SQL Alloc Handle failed on connection '%s'!\n", connection);
ast_odbc_release_obj(obj);
continue;
}
res = SQLColumns(stmt, NULL, 0, NULL, 0, (unsigned char *)table, SQL_NTS, (unsigned char *)"%", SQL_NTS);
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
ast_log(LOG_ERROR, "Unable to query database columns on connection '%s'. Skipping.\n", connection);
ast_odbc_release_obj(obj);
continue;
}
tableptr = ast_calloc(sizeof(char), sizeof(*tableptr) + lenconnection + 1 + lentable + 1);
if (!tableptr) {
ast_log(LOG_ERROR, "Out of memory creating entry for table '%s' on connection '%s'\n", table, connection);
ast_odbc_release_obj(obj);
res = -1;
break;
}
tableptr->connection = (char *)tableptr + sizeof(*tableptr);
tableptr->table = (char *)tableptr + sizeof(*tableptr) + lenconnection + 1;
ast_copy_string(tableptr->connection, connection, lenconnection + 1);
ast_copy_string(tableptr->table, table, lentable + 1);
ast_verb(3, "Found adaptive CDR table %s@%s.\n", tableptr->table, tableptr->connection);
/* Check for filters first */
for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
if (strncmp(var->name, "filter", 6) == 0) {
char *cdrvar = ast_strdupa(var->name + 6);
cdrvar = ast_strip(cdrvar);
ast_verb(3, "Found filter %s for cdr variable %s in %s@%s\n", var->value, cdrvar, tableptr->table, tableptr->connection);
entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(cdrvar) + 1 + strlen(var->value) + 1);
if (!entry) {
ast_log(LOG_ERROR, "Out of memory creating filter entry for CDR variable '%s' in table '%s' on connection '%s'\n", cdrvar, table, connection);
res = -1;
break;
}
/* NULL column entry means this isn't a column in the database */
entry->name = NULL;
entry->cdrname = (char *)entry + sizeof(*entry);
entry->filtervalue = (char *)entry + sizeof(*entry) + strlen(cdrvar) + 1;
strcpy(entry->cdrname, cdrvar);
strcpy(entry->filtervalue, var->value);
AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
}
}
while ((res = SQLFetch(stmt)) != SQL_NO_DATA && res != SQL_ERROR) {
char *cdrvar = "";
SQLGetData(stmt, 4, SQL_C_CHAR, columnname, sizeof(columnname), &sqlptr);
/* Is there an alias for this column? */
/* NOTE: This seems like a non-optimal parse method, but I'm going
* for user configuration readability, rather than fast parsing. We
* really don't parse this file all that often, anyway.
*/
for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
if (strncmp(var->name, "alias", 5) == 0 && strcasecmp(var->value, columnname) == 0) {
char *tmp = ast_strdupa(var->name + 5);
cdrvar = ast_strip(tmp);
ast_verb(3, "Found alias %s for column %s in %s@%s\n", cdrvar, columnname, tableptr->table, tableptr->connection);
break;
}
}
entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(columnname) + 1 + strlen(cdrvar) + 1);
if (!entry) {
ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s' on connection '%s'\n", columnname, table, connection);
res = -1;
break;
}
entry->name = (char *)entry + sizeof(*entry);
strcpy(entry->name, columnname);
if (!ast_strlen_zero(cdrvar)) {
entry->cdrname = entry->name + strlen(columnname) + 1;
strcpy(entry->cdrname, cdrvar);
} else /* Point to same place as the column name */
entry->cdrname = (char *)entry + sizeof(*entry);
SQLGetData(stmt, 5, SQL_C_SHORT, &entry->type, sizeof(entry->type), NULL);
SQLGetData(stmt, 7, SQL_C_LONG, &entry->size, sizeof(entry->size), NULL);
SQLGetData(stmt, 9, SQL_C_SHORT, &entry->decimals, sizeof(entry->decimals), NULL);
SQLGetData(stmt, 10, SQL_C_SHORT, &entry->radix, sizeof(entry->radix), NULL);
SQLGetData(stmt, 11, SQL_C_SHORT, &entry->nullable, sizeof(entry->nullable), NULL);
SQLGetData(stmt, 16, SQL_C_LONG, &entry->octetlen, sizeof(entry->octetlen), NULL);
/* Specification states that the octenlen should be the maximum number of bytes
* returned in a char or binary column, but it seems that some drivers just set
* it to NULL. (Bad Postgres! No biscuit!) */
if (entry->octetlen == 0)
entry->octetlen = entry->size;
ast_verb(10, "Found %s column with type %hd with len %ld, octetlen %ld, and numlen (%hd,%hd)\n", entry->name, entry->type, (long) entry->size, (long) entry->octetlen, entry->decimals, entry->radix);
/* Insert column info into column list */
AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
res = 0;
}
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
ast_odbc_release_obj(obj);
if (AST_LIST_FIRST(&(tableptr->columns)))
AST_RWLIST_INSERT_TAIL(&odbc_tables, tableptr, list);
else
ast_free(tableptr);
}
return res;
}
static int free_config(void)
{
struct tables *table;
struct columns *entry;
while ((table = AST_RWLIST_REMOVE_HEAD(&odbc_tables, list))) {
while ((entry = AST_LIST_REMOVE_HEAD(&(table->columns), list))) {
ast_free(entry);
}
ast_free(table);
}
return 0;
}
static SQLHSTMT generic_prepare(struct odbc_obj *obj, void *data)
{
int res, i;
char *sql = data;
SQLHSTMT stmt;
SQLINTEGER nativeerror = 0, numfields = 0;
SQLSMALLINT diagbytes = 0;
unsigned char state[10], diagnostic[256];
res = SQLAllocHandle (SQL_HANDLE_STMT, obj->con, &stmt);
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
return NULL;
}
res = SQLPrepare(stmt, (unsigned char *)sql, SQL_NTS);
if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", sql);
SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
for (i = 0; i < numfields; i++) {
SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
if (i > 10) {
ast_log(LOG_WARNING, "Oh, that was good. There are really %d diagnostics?\n", (int)numfields);
break;
}
}
SQLFreeHandle (SQL_HANDLE_STMT, stmt);
return NULL;
}
return stmt;
}
#define LENGTHEN_BUF1(size) \
do { \
/* Lengthen buffer, if necessary */ \
if ((newsize = lensql + (size) + 3) > sizesql) { \
if ((tmp = ast_realloc(sql, (newsize / 512 + 1) * 512))) { \
sql = tmp; \
sizesql = (newsize / 512 + 1) * 512; \
} else { \
ast_log(LOG_ERROR, "Unable to allocate sufficient memory. Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
ast_free(sql); \
ast_free(sql2); \
AST_RWLIST_UNLOCK(&odbc_tables); \
return -1; \
} \
} \
} while (0)
#define LENGTHEN_BUF2(size) \
do { \
if ((newsize = lensql2 + (size) + 3) > sizesql2) { \
if ((tmp = ast_realloc(sql2, (newsize / 512 + 1) * 512))) { \
sql2 = tmp; \
sizesql2 = (newsize / 512 + 1) * 512; \
} else { \
ast_log(LOG_ERROR, "Unable to allocate sufficient memory. Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
ast_free(sql); \
ast_free(sql2); \
AST_RWLIST_UNLOCK(&odbc_tables); \
return -1; \
} \
} \
} while (0)
static int odbc_log(struct ast_cdr *cdr)
{
struct tables *tableptr;
struct columns *entry;
struct odbc_obj *obj;
int lensql, lensql2, sizesql = maxsize, sizesql2 = maxsize2, newsize;
/* Allocated, so we can realloc() */
char *sql = ast_calloc(sizeof(char), sizesql), *sql2 = ast_calloc(sizeof(char), sizesql2), *tmp;
char colbuf[1024], *colptr;
SQLHSTMT stmt = NULL;
SQLLEN rows = 0;
if (!sql || !sql2) {
if (sql)
ast_free(sql);
if (sql2)
ast_free(sql2);
return -1;
}
if (AST_RWLIST_RDLOCK(&odbc_tables)) {
ast_log(LOG_ERROR, "Unable to lock table list. Insert CDR(s) failed.\n");
ast_free(sql);
ast_free(sql2);
return -1;
}
AST_LIST_TRAVERSE(&odbc_tables, tableptr, list) {
lensql = snprintf(sql, sizesql, "INSERT INTO %s (", tableptr->table);
lensql2 = snprintf(sql2, sizesql2, " VALUES (");
/* No need to check the connection now; we'll handle any failure in prepare_and_execute */
if (!(obj = ast_odbc_request_obj(tableptr->connection, 0))) {
ast_log(LOG_WARNING, "cdr_adaptive_odbc: Unable to retrieve database handle for '%s:%s'. CDR failed: %s\n", tableptr->connection, tableptr->table, sql);
continue;
}
AST_LIST_TRAVERSE(&(tableptr->columns), entry, list) {
/* Check if we have a similarly named variable */
ast_cdr_getvar(cdr, entry->cdrname, &colptr, colbuf, sizeof(colbuf), 0,
(strcasecmp(entry->cdrname, "start") == 0 ||
strcasecmp(entry->cdrname, "answer") == 0 ||
strcasecmp(entry->cdrname, "end") == 0) ? 0 : 1);
if (colptr) {
/* Check first if the column filters this entry. Note that this
* is very specifically NOT ast_strlen_zero(), because the filter
* could legitimately specify that the field is blank, which is
* different from the field being unspecified (NULL). */
if (entry->filtervalue && strcasecmp(colptr, entry->filtervalue) != 0) {
ast_verb(4, "CDR column '%s' with value '%s' does not match filter of"
" '%s'. Cancelling this CDR.\n",
entry->cdrname, colptr, entry->filtervalue);
goto early_release;
}
/* Only a filter? */
if (ast_strlen_zero(entry->name))
continue;
LENGTHEN_BUF1(strlen(entry->name));
switch (entry->type) {
case SQL_CHAR:
case SQL_VARCHAR:
case SQL_LONGVARCHAR:
case SQL_BINARY:
case SQL_VARBINARY:
case SQL_LONGVARBINARY:
case SQL_GUID:
/* For these two field names, get the rendered form, instead of the raw
* form (but only when we're dealing with a character-based field).
*/
if (strcasecmp(entry->name, "disposition") == 0)
ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
else if (strcasecmp(entry->name, "amaflags") == 0)
ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
/* Truncate too-long fields */
if (entry->type != SQL_GUID) {
if (strlen(colptr) > entry->octetlen)
colptr[entry->octetlen] = '\0';
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(strlen(colptr));
/* Encode value, with escaping */
strcpy(sql2 + lensql2, "'");
lensql2++;
for (tmp = colptr; *tmp; tmp++) {
if (*tmp == '\'') {
strcpy(sql2 + lensql2, "''");
lensql2 += 2;
} else if (*tmp == '\\' && ast_odbc_backslash_is_escape(obj)) {
strcpy(sql2 + lensql2, "\\\\");
lensql2 += 2;
} else {
sql2[lensql2++] = *tmp;
sql2[lensql2] = '\0';
}
}
strcpy(sql2 + lensql2, "',");
lensql2 += 2;
break;
case SQL_TYPE_DATE:
{
int year = 0, month = 0, day = 0;
if (sscanf(colptr, "%d-%d-%d", &year, &month, &day) != 3 || year <= 0 ||
month <= 0 || month > 12 || day < 0 || day > 31 ||
((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
(month == 2 && year % 400 == 0 && day > 29) ||
(month == 2 && year % 100 == 0 && day > 28) ||
(month == 2 && year % 4 == 0 && day > 29) ||
(month == 2 && year % 4 != 0 && day > 28)) {
ast_log(LOG_WARNING, "CDR variable %s is not a valid date ('%s').\n", entry->name, colptr);
break;
}
if (year > 0 && year < 100)
year += 2000;
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(17);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "{ d '%04d-%02d-%02d' },", year, month, day);
}
break;
case SQL_TYPE_TIME:
{
int hour = 0, minute = 0, second = 0;
int count = sscanf(colptr, "%d:%d:%d", &hour, &minute, &second);
if ((count != 2 && count != 3) || hour < 0 || hour > 23 || minute < 0 || minute > 59 || second < 0 || second > 59) {
ast_log(LOG_WARNING, "CDR variable %s is not a valid time ('%s').\n", entry->name, colptr);
break;
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(15);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "{ t '%02d:%02d:%02d' },", hour, minute, second);
}
break;
case SQL_TYPE_TIMESTAMP:
case SQL_TIMESTAMP:
{
int year = 0, month = 0, day = 0, hour = 0, minute = 0, second = 0;
int count = sscanf(colptr, "%d-%d-%d %d:%d:%d", &year, &month, &day, &hour, &minute, &second);
if ((count != 3 && count != 5 && count != 6) || year <= 0 ||
month <= 0 || month > 12 || day < 0 || day > 31 ||
((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
(month == 2 && year % 400 == 0 && day > 29) ||
(month == 2 && year % 100 == 0 && day > 28) ||
(month == 2 && year % 4 == 0 && day > 29) ||
(month == 2 && year % 4 != 0 && day > 28) ||
hour > 23 || minute > 59 || second > 59 || hour < 0 || minute < 0 || second < 0) {
ast_log(LOG_WARNING, "CDR variable %s is not a valid timestamp ('%s').\n", entry->name, colptr);
break;
}
if (year > 0 && year < 100)
year += 2000;
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(26);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "{ ts '%04d-%02d-%02d %02d:%02d:%02d' },", year, month, day, hour, minute, second);
}
break;
case SQL_INTEGER:
{
int integer = 0;
if (sscanf(colptr, "%d", &integer) != 1) {
ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
break;
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(12);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%d,", integer);
}
break;
case SQL_BIGINT:
{
long long integer = 0;
if (sscanf(colptr, "%lld", &integer) != 1) {
ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
break;
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(24);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%lld,", integer);
}
break;
case SQL_SMALLINT:
{
short integer = 0;
if (sscanf(colptr, "%hd", &integer) != 1) {
ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
break;
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(6);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%d,", integer);
}
break;
case SQL_TINYINT:
{
char integer = 0;
if (sscanf(colptr, "%hhd", &integer) != 1) {
ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
break;
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(4);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%d,", integer);
}
break;
case SQL_BIT:
{
char integer = 0;
if (sscanf(colptr, "%hhd", &integer) != 1) {
ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
break;
}
if (integer != 0)
integer = 1;
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(2);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%d,", integer);
}
break;
case SQL_NUMERIC:
case SQL_DECIMAL:
{
double number = 0.0;
if (sscanf(colptr, "%lf", &number) != 1) {
ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
break;
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(entry->decimals);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%*.*lf,", entry->decimals, entry->radix, number);
}
break;
case SQL_FLOAT:
case SQL_REAL:
case SQL_DOUBLE:
{
double number = 0.0;
if (sscanf(colptr, "%lf", &number) != 1) {
ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
break;
}
lensql += snprintf(sql + lensql, sizesql - lensql, "%s,", entry->name);
LENGTHEN_BUF2(entry->decimals);
lensql2 += snprintf(sql2 + lensql2, sizesql2 - lensql2, "%lf,", number);
}
break;
default:
ast_log(LOG_WARNING, "Column type %d (field '%s:%s:%s') is unsupported at this time.\n", entry->type, tableptr->connection, tableptr->table, entry->name);
}
}
}
/* Concatenate the two constructed buffers */
LENGTHEN_BUF1(lensql2);
sql[lensql - 1] = ')';
sql2[lensql2 - 1] = ')';
strcat(sql + lensql, sql2);
ast_verb(11, "[%s]\n", sql);
stmt = ast_odbc_prepare_and_execute(obj, generic_prepare, sql);
if (stmt) {
SQLRowCount(stmt, &rows);
SQLFreeHandle(SQL_HANDLE_STMT, stmt);
}
if (rows == 0) {
ast_log(LOG_WARNING, "cdr_adaptive_odbc: Insert failed on '%s:%s'. CDR failed: %s\n", tableptr->connection, tableptr->table, sql);
}
early_release:
ast_odbc_release_obj(obj);
}
AST_RWLIST_UNLOCK(&odbc_tables);
/* Next time, just allocate buffers that are that big to start with. */
if (sizesql > maxsize)
maxsize = sizesql;
if (sizesql2 > maxsize2)
maxsize2 = sizesql2;
ast_free(sql);
ast_free(sql2);
return 0;
}
static int unload_module(void)
{
ast_cdr_unregister(name);
usleep(1);
if (AST_RWLIST_WRLOCK(&odbc_tables)) {
ast_cdr_register(name, ast_module_info->description, odbc_log);
ast_log(LOG_ERROR, "Unable to lock column list. Unload failed.\n");
return -1;
}
free_config();
AST_RWLIST_UNLOCK(&odbc_tables);
return 0;
}
static int load_module(void)
{
if (AST_RWLIST_WRLOCK(&odbc_tables)) {
ast_log(LOG_ERROR, "Unable to lock column list. Load failed.\n");
return 0;
}
load_config();
AST_RWLIST_UNLOCK(&odbc_tables);
ast_cdr_register(name, ast_module_info->description, odbc_log);
return 0;
}
static int reload(void)
{
if (AST_RWLIST_WRLOCK(&odbc_tables)) {
ast_log(LOG_ERROR, "Unable to lock column list. Reload failed.\n");
return -1;
}
free_config();
load_config();
AST_RWLIST_UNLOCK(&odbc_tables);
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Adaptive ODBC CDR backend",
.load = load_module,
.unload = unload_module,
.reload = reload,
);
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