diff options
Diffstat (limited to 'main/ccss.c')
| -rw-r--r-- | main/ccss.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/main/ccss.c b/main/ccss.c index cdd0be7a9..e440b340e 100644 --- a/main/ccss.c +++ b/main/ccss.c @@ -33,6 +33,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$") #include "asterisk/utils.h" #include "asterisk/taskprocessor.h" #include "asterisk/event.h" +#include "asterisk/devicestate.h" #include "asterisk/module.h" #include "asterisk/app.h" #include "asterisk/cli.h" @@ -530,6 +531,111 @@ static int count_agents_cb(void *obj, void *arg, void *data, int flags) return 0; } +/* default values mapping from cc_state to ast_dev_state */ + +#define CC_AVAILABLE_DEVSTATE_DEFAULT AST_DEVICE_NOT_INUSE +#define CC_CALLER_OFFERED_DEVSTATE_DEFAULT AST_DEVICE_NOT_INUSE +#define CC_CALLER_REQUESTED_DEVSTATE_DEFAULT AST_DEVICE_NOT_INUSE +#define CC_ACTIVE_DEVSTATE_DEFAULT AST_DEVICE_INUSE +#define CC_CALLEE_READY_DEVSTATE_DEFAULT AST_DEVICE_RINGING +#define CC_CALLER_BUSY_DEVSTATE_DEFAULT AST_DEVICE_ONHOLD +#define CC_RECALLING_DEVSTATE_DEFAULT AST_DEVICE_RINGING +#define CC_COMPLETE_DEVSTATE_DEFAULT AST_DEVICE_NOT_INUSE +#define CC_FAILED_DEVSTATE_DEFAULT AST_DEVICE_NOT_INUSE + +/*! + * \internal + * \brief initialization of defaults for CC_STATE to DEVICE_STATE map + */ +static enum ast_device_state cc_state_to_devstate_map[] = { + [CC_AVAILABLE] = CC_AVAILABLE_DEVSTATE_DEFAULT, + [CC_CALLER_OFFERED] = CC_CALLER_OFFERED_DEVSTATE_DEFAULT, + [CC_CALLER_REQUESTED] = CC_CALLER_REQUESTED_DEVSTATE_DEFAULT, + [CC_ACTIVE] = CC_ACTIVE_DEVSTATE_DEFAULT, + [CC_CALLEE_READY] = CC_CALLEE_READY_DEVSTATE_DEFAULT, + [CC_CALLER_BUSY] = CC_CALLER_BUSY_DEVSTATE_DEFAULT, + [CC_RECALLING] = CC_RECALLING_DEVSTATE_DEFAULT, + [CC_COMPLETE] = CC_COMPLETE_DEVSTATE_DEFAULT, + [CC_FAILED] = CC_FAILED_DEVSTATE_DEFAULT, +}; + +/*! + * \intenral + * \brief lookup the ast_device_state mapped to cc_state + * + * \return the correponding DEVICE STATE from the cc_state_to_devstate_map + * when passed an internal state. + */ +static enum ast_device_state cc_state_to_devstate(enum cc_state state) +{ + return cc_state_to_devstate_map[state]; +} + +/*! + * \internal + * \brief Callback for devicestate providers + * + * \details + * Initialize with ast_devstate_prov_add() and returns the corresponding + * DEVICE STATE based on the current CC_STATE state machine if the requested + * device is found and is a generic device. Returns the equivalent of + * CC_FAILED, which defaults to NOT_INUSE, if no device is found. NOT_INUSE would + * indicate that there is no presence of any pending call back. + */ +static enum ast_device_state ccss_device_state(const char *device_name) +{ + struct cc_core_instance *core_instance; + unsigned long match_flags; + enum ast_device_state cc_current_state; + + match_flags = MATCH_NO_REQUEST; + core_instance = ao2_t_callback_data(cc_core_instances, 0, match_agent, + (char *) device_name, &match_flags, + "Find Core Instance for ccss_device_state reqeust."); + if (!core_instance) { + ast_log_dynamic_level(cc_logger_level, + "Couldn't find a core instance for caller %s\n", device_name); + return cc_state_to_devstate(CC_FAILED); + } + + ast_log_dynamic_level(cc_logger_level, + "Core %d: Found core_instance for caller %s in state %s\n", + core_instance->core_id, device_name, cc_state_to_string(core_instance->current_state)); + + if (strcmp(core_instance->agent->callbacks->type, "generic")) { + ast_log_dynamic_level(cc_logger_level, + "Core %d: Device State is only for generic agent types.\n", + core_instance->core_id); + cc_unref(core_instance, "Unref core_instance since ccss_device_state was called with native agent"); + return cc_state_to_devstate(CC_FAILED); + } + cc_current_state = cc_state_to_devstate(core_instance->current_state); + cc_unref(core_instance, "Unref core_instance done with ccss_device_state"); + return cc_current_state; +} + +/*! + * \internal + * \brief Notify Device State Changes from CC STATE MACHINE + * + * \details + * Any time a state is changed, we call this function to notify the DEVICE STATE + * subsystem of the change so that subscribed phones to any corresponding hints that + * are using that state are updated. + */ +static void ccss_notify_device_state_change(const char *device, enum cc_state state) +{ + enum ast_device_state devstate; + + devstate = cc_state_to_devstate(state); + + ast_log_dynamic_level(cc_logger_level, + "Notification of CCSS state change to '%s', device state '%s' for device '%s'", + cc_state_to_string(state), ast_devstate2str(devstate), device); + + ast_devstate_changed(devstate, "ccss:%s", device); +} + #define CC_OFFER_TIMER_DEFAULT 20 /* Seconds */ #define CCNR_AVAILABLE_TIMER_DEFAULT 7200 /* Seconds */ #define CCBS_AVAILABLE_TIMER_DEFAULT 4800 /* Seconds */ @@ -3014,6 +3120,11 @@ static int cc_do_state_change(void *datap) core_instance->current_state = args->state; res = state_change_funcs[core_instance->current_state](core_instance, args, previous_state); + /* If state change successful then notify any device state watchers of the change */ + if (!res && !strcmp(core_instance->agent->callbacks->type, "generic")) { + ccss_notify_device_state_change(core_instance->agent->device_name, core_instance->current_state); + } + ast_free(args); cc_unref(core_instance, "Unref since state change has completed"); /* From ao2_find */ return res; @@ -4102,6 +4213,59 @@ static void initialize_cc_max_requests(void) return; } +/*! + * \internal + * \brief helper function to parse and configure each devstate map + */ +static void initialize_cc_devstate_map_helper(struct ast_config *cc_config, enum cc_state state, const char *cc_setting) +{ + const char *cc_devstate_str; + enum ast_device_state this_devstate; + + if ((cc_devstate_str = ast_variable_retrieve(cc_config, "general", cc_setting))) { + this_devstate = ast_devstate_val(cc_devstate_str); + if (this_devstate != AST_DEVICE_UNKNOWN) { + cc_state_to_devstate_map[state] = this_devstate; + } + } +} + +/*! + * \internal + * \brief initializes cc_state_to_devstate_map from ccss.conf + * + * \details + * The cc_state_to_devstate_map[] is already initialized with all the + * default values. This will update that structure with any changes + * from the ccss.conf file. The configuration parameters in ccss.conf + * should use any valid device state form that is recognized by + * ast_devstate_val() function. + */ +static void initialize_cc_devstate_map(void) +{ + struct ast_config *cc_config; + struct ast_flags config_flags = { 0, }; + + cc_config = ast_config_load2("ccss.conf", "ccss", config_flags); + if (!cc_config || cc_config == CONFIG_STATUS_FILEINVALID) { + ast_log(LOG_WARNING, + "Could not find valid ccss.conf file. Using cc_[state]_devstate defaults\n"); + return; + } + + initialize_cc_devstate_map_helper(cc_config, CC_AVAILABLE, "cc_available_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_CALLER_OFFERED, "cc_caller_offered_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_CALLER_REQUESTED, "cc_caller_requested_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_ACTIVE, "cc_active_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_CALLEE_READY, "cc_callee_ready_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_CALLER_BUSY, "cc_caller_busy_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_RECALLING, "cc_recalling_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_COMPLETE, "cc_complete_devstate"); + initialize_cc_devstate_map_helper(cc_config, CC_FAILED, "cc_failed_devstate"); + + ast_config_destroy(cc_config); +} + static void cc_cli_print_monitor_stats(struct ast_cc_monitor *monitor, int fd, int parent_id) { struct ast_cc_monitor *child_monitor_iter = monitor; @@ -4297,9 +4461,15 @@ int ast_cc_init(void) res |= ast_register_application2(cccancel_app, cccancel_exec, NULL, NULL, NULL); res |= ast_cc_monitor_register(&generic_monitor_cbs); res |= ast_cc_agent_register(&generic_agent_callbacks); + ast_cli_register_multiple(cc_cli, ARRAY_LEN(cc_cli)); cc_logger_level = ast_logger_register_level(CC_LOGGER_LEVEL_NAME); dialed_cc_interface_counter = 1; initialize_cc_max_requests(); + + /* Read the map and register the device state callback for generic agents */ + initialize_cc_devstate_map(); + res |= ast_devstate_prov_add("ccss", ccss_device_state); + return res; } |