2 * Asterisk -- An open source telephony toolkit.
4 * Copyright (C) 2005-2006, BJ Weschke. All rights reserved.
6 * BJ Weschke <bweschke@btwtech.com>
8 * This code is released by the author with no restrictions on usage.
10 * See http://www.asterisk.org for more information about
11 * the Asterisk project. Please do not directly contact
12 * any of the maintainers of this project for assistance;
13 * the project provides a web site, mailing lists and IRC
14 * channels for your use.
20 * \brief REALTIME dialplan function
22 * \author BJ Weschke <bweschke@btwtech.com>
29 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
35 #include <sys/types.h>
37 #include "asterisk/file.h"
38 #include "asterisk/channel.h"
39 #include "asterisk/pbx.h"
40 #include "asterisk/options.h"
41 #include "asterisk/config.h"
42 #include "asterisk/module.h"
43 #include "asterisk/lock.h"
44 #include "asterisk/logger.h"
45 #include "asterisk/utils.h"
46 #include "asterisk/app.h"
48 static int function_realtime_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
50 struct ast_variable *var, *head;
54 AST_DECLARE_APP_ARGS(args,
56 AST_APP_ARG(fieldmatch);
62 if (ast_strlen_zero(data)) {
63 ast_log(LOG_WARNING, "Syntax: REALTIME(family|fieldmatch[|value[|delim1[|delim2]]]) - missing argument!\n");
67 AST_STANDARD_APP_ARGS(args, data);
74 head = ast_load_realtime_all(args.family, args.fieldmatch, args.value, NULL);
81 for (var = head; var; n++, var = var->next)
82 resultslen += strlen(var->name) + strlen(var->value);
83 /* add space for delimiters and final '\0' */
84 resultslen += n * (strlen(args.delim1) + strlen(args.delim2)) + 1;
86 out = ast_str_alloca(resultslen);
87 for (var = head; var; var = var->next)
88 ast_str_append(&out, 0, "%s%s%s%s", var->name, args.delim2, var->value, args.delim1);
89 ast_copy_string(buf, out->str, len);
94 static int function_realtime_write(struct ast_channel *chan, const char *cmd, char *data, const char *value)
97 AST_DECLARE_APP_ARGS(args,
99 AST_APP_ARG(fieldmatch);
104 if (ast_strlen_zero(data)) {
105 ast_log(LOG_WARNING, "Syntax: REALTIME(family|fieldmatch|value|newcol) - missing argument!\n");
109 AST_STANDARD_APP_ARGS(args, data);
111 res = ast_update_realtime(args.family, args.fieldmatch, args.value, args.field, (char *)value, NULL);
114 ast_log(LOG_WARNING, "Failed to update. Check the debug log for possible data repository related entries.\n");
120 struct ast_custom_function realtime_function = {
122 .synopsis = "RealTime Read/Write Functions",
123 .syntax = "REALTIME(family|fieldmatch[|value[|delim1[|delim2]]]) on read\n"
124 "REALTIME(family|fieldmatch|value|field) on write\n",
125 .desc = "This function will read or write values from/to a RealTime repository.\n"
126 "REALTIME(....) will read names/values from the repository, and \n"
127 "REALTIME(....)= will write a new value/field to the repository. On a\n"
128 "read, this function returns a delimited text string. The name/value \n"
129 "pairs are delimited by delim1, and the name and value are delimited \n"
130 "between each other with delim2. The default for delim1 is '|' and \n"
131 "the default for delim2 is '='. If there is no match, NULL will be \n"
132 "returned by the function. On a write, this function will always \n"
134 .read = function_realtime_read,
135 .write = function_realtime_write,
138 static int unload_module(void)
140 return ast_custom_function_unregister(&realtime_function);
143 static int load_module(void)
145 return ast_custom_function_register(&realtime_function);
148 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Read/Write values from a RealTime repository");