diff options
author | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2007-02-13 22:02:20 +0000 |
---|---|---|
committer | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2007-02-13 22:02:20 +0000 |
commit | bb6564f8e744f7c8b28ba9a03b3f8f852952b5eb (patch) | |
tree | 6c0ae108c47a878e9cc329ef2c330982e02b80a3 | |
parent | 76f1766c9ff8e9d1c5c9e094b21ef880379b858e (diff) |
This introduces a new dialplan function, DEVSTATE, which allows you to do some
pretty cool things.
First, you can get the device state of anything in the dialplan:
NoOp(SIP/mypeer has state ${DEVSTATE(SIP/mypeer)})
NoOp(The conference room 1234 has state ${DEVSTATE(MeetMe:1234)})
Most importantly, this allows you to create custom device states so you can
control phone lamps directly from the dialplan.
Set(DEVSTATE(Custom:mycustomlamp)=BUSY)
...
exten => mycustomlamp,hint,Custom:mycustomlamp
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@54261 f38db490-d61c-443f-a65b-d21fe96a405b
-rw-r--r-- | CHANGES | 3 | ||||
-rw-r--r-- | apps/app_meetme.c | 6 | ||||
-rw-r--r-- | apps/app_queue.c | 2 | ||||
-rw-r--r-- | funcs/func_devstate.c | 205 | ||||
-rw-r--r-- | include/asterisk/cli.h | 4 | ||||
-rw-r--r-- | include/asterisk/devicestate.h | 51 | ||||
-rw-r--r-- | main/cli.c | 16 | ||||
-rw-r--r-- | main/devicestate.c | 74 | ||||
-rw-r--r-- | res/res_features.c | 6 |
9 files changed, 327 insertions, 40 deletions
@@ -68,6 +68,9 @@ Changes since Asterisk 1.4-beta was branched: * Added 'E' and 'V' commands to ExternalIVR. * Added 'DBDel' and 'DBDelTree' manager commands. * Added 'core show channels count' CLI command. + * Added the DEVSTATE() dialplan function which allows retrieving any device + state in the dialplan, as well as creating custom device states that are + controllable from the dialplan. SIP changes ----------- diff --git a/apps/app_meetme.c b/apps/app_meetme.c index 37ad8442b..fe79cfb7e 100644 --- a/apps/app_meetme.c +++ b/apps/app_meetme.c @@ -2867,7 +2867,7 @@ static void *recordthread(void *args) } /*! \brief Callback for devicestate providers */ -static int meetmestate(const char *data) +static enum ast_device_state meetmestate(const char *data) { struct ast_conference *conf; @@ -3540,12 +3540,12 @@ static int slatrunk_exec(struct ast_channel *chan, void *data) return 0; } -static int sla_state(const char *data) +static enum ast_device_state sla_state(const char *data) { char *buf, *station_name, *trunk_name; struct sla_station *station; struct sla_trunk_ref *trunk_ref; - int res = AST_DEVICE_INVALID; + enum ast_device_state res = AST_DEVICE_INVALID; trunk_name = buf = ast_strdupa(data); station_name = strsep(&trunk_name, "_"); diff --git a/apps/app_queue.c b/apps/app_queue.c index 480f69d1c..a2bf6d91f 100644 --- a/apps/app_queue.c +++ b/apps/app_queue.c @@ -612,7 +612,7 @@ static void *changethread(void *data) return NULL; } -static int statechange_queue(const char *dev, int state, void *ign) +static int statechange_queue(const char *dev, enum ast_device_state state, void *ign) { /* Avoid potential for deadlocks by spawning a new thread to handle the event */ diff --git a/funcs/func_devstate.c b/funcs/func_devstate.c new file mode 100644 index 000000000..c6429a853 --- /dev/null +++ b/funcs/func_devstate.c @@ -0,0 +1,205 @@ +/* + * 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$") + +#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" + +struct custom_device { + int state; + AST_RWLIST_ENTRY(custom_device) entry; + char name[1]; +}; + +static AST_RWLIST_HEAD_STATIC(custom_devices, custom_device); + +static int devstate_read(struct ast_channel *chan, const 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, const char *cmd, char *data, const char *value) +{ + struct custom_device *dev; + int 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_RWLIST_WRLOCK(&custom_devices); + AST_RWLIST_TRAVERSE(&custom_devices, dev, entry) { + if (!strcasecmp(dev->name, data)) + break; + } + if (!dev) { + if (!(dev = ast_calloc(1, sizeof(*dev) + strlen(data) + 1))) { + AST_RWLIST_UNLOCK(&custom_devices); + return -1; + } + strcpy(dev->name, data); + AST_RWLIST_INSERT_HEAD(&custom_devices, dev, entry); + } + dev->state = ast_devstate_val(value); + ast_device_state_changed("Custom:%s", dev->name); + AST_RWLIST_UNLOCK(&custom_devices); + + return 0; +} + +static enum ast_device_state custom_devstate_callback(const char *data) +{ + struct custom_device *dev; + enum ast_device_state state = AST_DEVICE_UNKNOWN; + + AST_RWLIST_RDLOCK(&custom_devices); + AST_RWLIST_TRAVERSE(&custom_devices, dev, entry) { + if (!strcasecmp(dev->name, data)) + state = dev->state; + } + AST_RWLIST_UNLOCK(&custom_devices); + + return state; +} + +static char *cli_funcdevstate_list(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a) +{ + struct custom_device *dev; + + switch (cmd) { + case CLI_INIT: + e->command = "funcdevstate list"; + e->usage = + "Usage: funcdevstate list\n" + " List all custom device states that have been set by using\n" + " the DEVSTATE dialplan function.\n"; + return NULL; + case CLI_GENERATE: + return NULL; + } + + if (a->argc != e->args) + return CLI_SHOWUSAGE; + + ast_cli(a->fd, "\n" + "---------------------------------------------------------------------\n" + "--- Custom Device States --------------------------------------------\n" + "---------------------------------------------------------------------\n" + "---\n"); + AST_RWLIST_RDLOCK(&custom_devices); + AST_RWLIST_TRAVERSE(&custom_devices, dev, entry) { + ast_cli(a->fd, "--- Name: 'Custom:%s' State: '%s'\n" + "---\n", dev->name, ast_devstate_str(dev->state)); + } + AST_RWLIST_UNLOCK(&custom_devices); + ast_cli(a->fd, + "---------------------------------------------------------------------\n" + "---------------------------------------------------------------------\n" + "\n"); + + return CLI_SUCCESS; +} + +static struct ast_cli_entry cli_funcdevstate[] = { + NEW_CLI(cli_funcdevstate_list, "List currently known custom device states"), +}; + +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) +{ + struct custom_device *dev; + int res = 0; + + res |= ast_custom_function_unregister(&devstate_function); + res |= ast_devstate_prov_del("Custom"); + res |= ast_cli_unregister_multiple(cli_funcdevstate, ARRAY_LEN(cli_funcdevstate)); + + AST_RWLIST_WRLOCK(&custom_devices); + while ((dev = AST_RWLIST_REMOVE_HEAD(&custom_devices, entry))) + free(dev); + AST_RWLIST_UNLOCK(&custom_devices); + + 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); + res |= ast_cli_register_multiple(cli_funcdevstate, ARRAY_LEN(cli_funcdevstate)); + + return res; +} + +AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Device state dialplan functions"); diff --git a/include/asterisk/cli.h b/include/asterisk/cli.h index 43a900811..9214a7d63 100644 --- a/include/asterisk/cli.h +++ b/include/asterisk/cli.h @@ -235,7 +235,7 @@ int ast_cli_register(struct ast_cli_entry *e); * \param e pointer to first cli entry to register * \param len number of entries to register */ -void ast_cli_register_multiple(struct ast_cli_entry *e, int len); +int ast_cli_register_multiple(struct ast_cli_entry *e, int len); /*! \brief Unregisters a command or an array of commands * @@ -250,7 +250,7 @@ int ast_cli_unregister(struct ast_cli_entry *e); * \param e pointer to first cli entry to unregister * \param len number of entries to unregister */ -void ast_cli_unregister_multiple(struct ast_cli_entry *e, int len); +int ast_cli_unregister_multiple(struct ast_cli_entry *e, int len); /*! \brief Readline madness * Useful for readline, that's about it diff --git a/include/asterisk/devicestate.h b/include/asterisk/devicestate.h index 042ffc2cf..dd7b939be 100644 --- a/include/asterisk/devicestate.h +++ b/include/asterisk/devicestate.h @@ -28,29 +28,42 @@ #if defined(__cplusplus) || defined(c_plusplus) extern "C" { #endif -/*! @name DeviceStates */ -/*! \@{ */ -#define AST_DEVICE_UNKNOWN 0 /*!< Device is valid but channel didn't know state */ -#define AST_DEVICE_NOT_INUSE 1 /*!< Device is not used */ -#define AST_DEVICE_INUSE 2 /*!< Device is in use */ -#define AST_DEVICE_BUSY 3 /*!< Device is busy */ -#define AST_DEVICE_INVALID 4 /*!< Device is invalid */ -#define AST_DEVICE_UNAVAILABLE 5 /*!< Device is unavailable */ -#define AST_DEVICE_RINGING 6 /*!< Device is ringing */ -#define AST_DEVICE_RINGINUSE 7 /*!< Device is ringing *and* in use */ -#define AST_DEVICE_ONHOLD 8 /*!< Device is on hold */ -/*! \@} */ + +/*! Device States */ +enum ast_device_state { + AST_DEVICE_UNKNOWN, /*!< Device is valid but channel didn't know state */ + AST_DEVICE_NOT_INUSE, /*!< Device is not used */ + AST_DEVICE_INUSE, /*!< Device is in use */ + AST_DEVICE_BUSY, /*!< Device is busy */ + AST_DEVICE_INVALID, /*!< Device is invalid */ + AST_DEVICE_UNAVAILABLE, /*!< Device is unavailable */ + AST_DEVICE_RINGING, /*!< Device is ringing */ + AST_DEVICE_RINGINUSE, /*!< Device is ringing *and* in use */ + AST_DEVICE_ONHOLD, /*!< Device is on hold */ +}; /*! \brief Devicestate watcher call back */ -typedef int (*ast_devstate_cb_type)(const char *dev, int state, void *data); +typedef int (*ast_devstate_cb_type)(const char *dev, enum ast_device_state state, void *data); /*! \brief Devicestate provider call back */ -typedef int (*ast_devstate_prov_cb_type)(const char *data); +typedef enum ast_device_state (*ast_devstate_prov_cb_type)(const char *data); /*! \brief Convert device state to text string for output * \param devstate Current device state */ -const char *devstate2str(int devstate); +const char *devstate2str(enum ast_device_state devstate); + +/*! \brief Convert device state to text string that is easier to parse + * \param devstate Current device state + */ +const char *ast_devstate_str(enum ast_device_state devstate); + +/*! \brief Convert device state from text to integer value + * \param The text representing the device state. Valid values are anything + * that comes after AST_DEVICE_ in one of the defined values. + * \return The AST_DEVICE_ integer value + */ +enum ast_device_state ast_devstate_val(const char *val); /*! \brief Search the Channels by Name * \param device like a dialstring @@ -59,7 +72,7 @@ const char *devstate2str(int devstate); * Returns an AST_DEVICE_UNKNOWN if no channel found or * AST_DEVICE_INUSE if a channel is found */ -int ast_parse_device_state(const char *device); +enum ast_device_state ast_parse_device_state(const char *device); /*! \brief Asks a channel for device state * \param device like a dialstring @@ -69,7 +82,7 @@ int ast_parse_device_state(const char *device); * active channels list for the device. * Returns an AST_DEVICE_??? state -1 on failure */ -int ast_device_state(const char *device); +enum ast_device_state ast_device_state(const char *device); /*! \brief Tells Asterisk the State for Device is changed * \param fmt devicename like a dialstring with format parameters @@ -115,9 +128,9 @@ int ast_devstate_prov_add(const char *label, ast_devstate_prov_cb_type callback) /*! \brief Remove device state provider * \param label to use in hint, like label:object - * \return nothing + * Return -1 on failure, 0 on success */ -void ast_devstate_prov_del(const char *label); +int ast_devstate_prov_del(const char *label); int ast_device_state_engine_init(void); diff --git a/main/cli.c b/main/cli.c index 538a2dbaf..a44a33348 100644 --- a/main/cli.c +++ b/main/cli.c @@ -1354,20 +1354,24 @@ int ast_cli_register(struct ast_cli_entry *e) /* * register/unregister an array of entries. */ -void ast_cli_register_multiple(struct ast_cli_entry *e, int len) +int ast_cli_register_multiple(struct ast_cli_entry *e, int len) { - int i; + int i, res = 0; for (i = 0; i < len; i++) - ast_cli_register(e + i); + res |= ast_cli_register(e + i); + + return res; } -void ast_cli_unregister_multiple(struct ast_cli_entry *e, int len) +int ast_cli_unregister_multiple(struct ast_cli_entry *e, int len) { - int i; + int i, res = 0; for (i = 0; i < len; i++) - ast_cli_unregister(e + i); + res |= ast_cli_unregister(e + i); + + return res; } diff --git a/main/devicestate.c b/main/devicestate.c index 3715b60cc..c13d635d1 100644 --- a/main/devicestate.c +++ b/main/devicestate.c @@ -179,21 +179,79 @@ static ast_cond_t change_pending; static int getproviderstate(const char *provider, const char *address); /*! \brief Find devicestate as text message for output */ -const char *devstate2str(int devstate) +const char *devstate2str(enum ast_device_state devstate) { return devstatestring[devstate]; } +const char *ast_devstate_str(enum ast_device_state 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; +} + +enum ast_device_state 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; +} + /*! \brief Find out if device is active in a call or not \note find channels with the device's name in it This function is only used for channels that does not implement devicestate natively */ -int ast_parse_device_state(const char *device) +enum ast_device_state ast_parse_device_state(const char *device) { struct ast_channel *chan; char match[AST_CHANNEL_NAME]; - int res; + enum ast_device_state res; ast_copy_string(match, device, sizeof(match)-1); strcat(match, "-"); @@ -213,12 +271,12 @@ int ast_parse_device_state(const char *device) } /*! \brief Check device state through channel specific function or generic function */ -int ast_device_state(const char *device) +enum ast_device_state ast_device_state(const char *device) { char *buf; char *number; const struct ast_channel_tech *chan_tech; - int res = 0; + enum ast_device_state res = AST_DEVICE_UNKNOWN; /*! \brief Channel driver that provides device state */ char *tech; /*! \brief Another provider of device state */ @@ -281,20 +339,24 @@ int ast_devstate_prov_add(const char *label, ast_devstate_prov_cb_type callback) } /*! \brief Remove device state provider */ -void ast_devstate_prov_del(const char *label) +int ast_devstate_prov_del(const char *label) { struct devstate_prov *devcb; + int res = -1; AST_RWLIST_WRLOCK(&devstate_provs); AST_RWLIST_TRAVERSE_SAFE_BEGIN(&devstate_provs, devcb, list) { if (!strcasecmp(devcb->label, label)) { AST_RWLIST_REMOVE_CURRENT(&devstate_provs, list); free(devcb); + res = 0; break; } } AST_RWLIST_TRAVERSE_SAFE_END; AST_RWLIST_UNLOCK(&devstate_provs); + + return res; } /*! \brief Get provider device state */ diff --git a/res/res_features.c b/res/res_features.c index 576cfaa5f..f383ebc9e 100644 --- a/res/res_features.c +++ b/res/res_features.c @@ -284,9 +284,9 @@ static void notify_metermaids(char *exten, char *context) } /*! \brief metermaids callback from devicestate.c */ -static int metermaidstate(const char *data) +static enum ast_device_state metermaidstate(const char *data) { - int res = AST_DEVICE_INVALID; + enum ast_device_state res = AST_DEVICE_INVALID; char *context = ast_strdupa(data); char *exten; @@ -299,7 +299,7 @@ static int metermaidstate(const char *data) res = ast_exists_extension(NULL, context, exten, 1, NULL); - if (!res) + if (res == AST_DEVICE_UNKNOWN) return AST_DEVICE_NOT_INUSE; else return AST_DEVICE_INUSE; |