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asterisk/patches/func_devstate.c.patch

232 lines
6.3 KiB

--- funcs/func_devstate.c 1970-01-01 01:00:00.000000000 +0100
+++ funcs/func_devstate.c 2010-04-15 22:42:27.000000000 +0200
@@ -0,0 +1,228 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2007, Digium, Inc.
+ *
+ * Russell Bryant <russell@digium.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 Manually controlled blinky lights
+ *
+ * \author Russell Bryant <russell@digium.com>
+ *
+ * \ingroup functions
+ *
+ * \note Props go out to Ahrimanes in #asterisk for requesting this at 4:30 AM
+ * when I couldn't sleep. :)
+ */
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision: 4 $")
+
+#include <stdlib.h>
+
+#include "asterisk/module.h"
+#include "asterisk/channel.h"
+#include "asterisk/pbx.h"
+#include "asterisk/utils.h"
+#include "asterisk/linkedlists.h"
+#include "asterisk/devicestate.h"
+#include "asterisk/cli.h"
+#include "asterisk/astdb.h"
+
+static const char astdb_family[] = "CustomDevstate";
+
+static const char *ast_devstate_str(int state)
+{
+ const char *res = "UNKNOWN";
+
+ switch (state) {
+ case AST_DEVICE_UNKNOWN:
+ break;
+ case AST_DEVICE_NOT_INUSE:
+ res = "NOT_INUSE";
+ break;
+ case AST_DEVICE_INUSE:
+ res = "INUSE";
+ break;
+ case AST_DEVICE_BUSY:
+ res = "BUSY";
+ break;
+ case AST_DEVICE_INVALID:
+ res = "INVALID";
+ break;
+ case AST_DEVICE_UNAVAILABLE:
+ res = "UNAVAILABLE";
+ break;
+ case AST_DEVICE_RINGING:
+ res = "RINGING";
+ break;
+ case AST_DEVICE_RINGINUSE:
+ res = "RINGINUSE";
+ break;
+ case AST_DEVICE_ONHOLD:
+ res = "ONHOLD";
+ break;
+ }
+
+ return res;
+}
+
+static int ast_devstate_val(const char *val)
+{
+ if (!strcasecmp(val, "NOT_INUSE"))
+ return AST_DEVICE_NOT_INUSE;
+ else if (!strcasecmp(val, "INUSE"))
+ return AST_DEVICE_INUSE;
+ else if (!strcasecmp(val, "BUSY"))
+ return AST_DEVICE_BUSY;
+ else if (!strcasecmp(val, "INVALID"))
+ return AST_DEVICE_INVALID;
+ else if (!strcasecmp(val, "UNAVAILABLE"))
+ return AST_DEVICE_UNAVAILABLE;
+ else if (!strcasecmp(val, "RINGING"))
+ return AST_DEVICE_RINGING;
+ else if (!strcasecmp(val, "RINGINUSE"))
+ return AST_DEVICE_RINGINUSE;
+ else if (!strcasecmp(val, "ONHOLD"))
+ return AST_DEVICE_ONHOLD;
+
+ return AST_DEVICE_UNKNOWN;
+}
+
+static int devstate_read(struct ast_channel *chan, char *cmd, char *data,
+ char *buf, size_t len)
+{
+ ast_copy_string(buf, ast_devstate_str(ast_device_state(data)), len);
+
+ return 0;
+}
+
+static int devstate_write(struct ast_channel *chan, char *function,
+ char *data, const char *value)
+{
+ size_t len = strlen("Custom:");
+
+ if (strncasecmp(data, "Custom:", len)) {
+ ast_log(LOG_WARNING, "The DEVSTATE function can only be used to set 'Custom:' device state!\n");
+ return -1;
+ }
+ data += len;
+ if (ast_strlen_zero(data)) {
+ ast_log(LOG_WARNING, "DEVSTATE function called with no custom device name!\n");
+ return -1;
+ }
+
+ ast_db_put(astdb_family, data, (char *) value);
+
+ ast_device_state_changed("Custom:%s", data);
+
+ return 0;
+}
+
+static int custom_devstate_callback(const char *data)
+{
+ char buf[256] = "";
+
+ ast_db_get(astdb_family, data, buf, sizeof(buf));
+
+ return ast_devstate_val(buf);
+}
+
+static int cli_funcdevstate_list(int fd, int argc, char *argv[])
+{
+ struct ast_db_entry *db_entry, *db_tree;
+
+ if (argc != 2)
+ return RESULT_SHOWUSAGE;
+
+ ast_cli(fd, "\n"
+ "---------------------------------------------------------------------\n"
+ "--- Custom Device States --------------------------------------------\n"
+ "---------------------------------------------------------------------\n"
+ "---\n");
+
+ db_entry = db_tree = ast_db_gettree(astdb_family, NULL);
+ for (; db_entry; db_entry = db_entry->next) {
+ const char *dev_name = strrchr(db_entry->key, '/') + 1;
+ if (dev_name <= (const char *) 1)
+ continue;
+ ast_cli(fd, "--- name: 'custom:%s' state: '%s'\n"
+ "---\n", dev_name, db_entry->data);
+ }
+ ast_db_freetree(db_tree);
+ db_tree = NULL;
+
+ ast_cli(fd,
+ "---------------------------------------------------------------------\n"
+ "---------------------------------------------------------------------\n"
+ "\n");
+
+ return RESULT_SUCCESS;
+}
+
+static struct ast_cli_entry cli_funcdevstate[] = {
+ { { "funcdevstate", "list", }, cli_funcdevstate_list, NULL, NULL },
+};
+
+static struct ast_custom_function devstate_function = {
+ .name = "DEVSTATE",
+ .synopsis = "Get or Set a device state",
+ .syntax = "DEVSTATE(device)",
+ .desc =
+ " The DEVSTATE function can be used to retrieve the device state from any\n"
+ "device state provider. For example:\n"
+ " NoOp(SIP/mypeer has state ${DEVSTATE(SIP/mypeer)})\n"
+ " NoOp(Conference number 1234 has state ${DEVSTATE(MeetMe:1234)})\n"
+ "\n"
+ " The DEVSTATE function can also be used to set custom device state from\n"
+ "the dialplan. The \"Custom:\" prefix must be used. For example:\n"
+ " Set(DEVSTATE(Custom:lamp1)=BUSY)\n"
+ " Set(DEVSTATE(Custom:lamp2)=NOT_INUSE)\n"
+ "You can subscribe to the status of a custom device state using a hint in\n"
+ "the dialplan:\n"
+ " exten => 1234,hint,Custom:lamp1\n"
+ "\n"
+ " The possible values for both uses of this function are:\n"
+ "UNKNOWN | NOT_INUSE | INUSE | BUSY | INVALID | UNAVAILABLE | RINGING\n"
+ "RINGINUSE | ONHOLD\n",
+ .read = devstate_read,
+ .write = devstate_write,
+};
+
+static int unload_module(void)
+{
+ int res = 0;
+
+ res |= ast_custom_function_unregister(&devstate_function);
+ ast_devstate_prov_del("Custom");
+ ast_cli_unregister_multiple(cli_funcdevstate, ARRAY_LEN(cli_funcdevstate));
+
+ return res;
+}
+
+static int load_module(void)
+{
+ int res = 0;
+
+ res |= ast_custom_function_register(&devstate_function);
+ res |= ast_devstate_prov_add("Custom", custom_devstate_callback);
+ ast_cli_register_multiple(cli_funcdevstate, ARRAY_LEN(cli_funcdevstate));
+
+ return res;
+}
+
+AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Gets or sets a device state in the dialplan");