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app_queue uses a taskprocessor for device state changes

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@115270 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.6.1
Dwayne M. Hubbard 19 years ago
parent b0b72e89a8
commit 8fdea12f33
1 changed files with 27 additions and 89 deletions
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116
apps/app_queue.c
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@ -92,6 +92,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/astobj2.h"
#include "asterisk/strings.h"
#include "asterisk/global_datastores.h"
#include "asterisk/taskprocessor.h"
/*!
* \par Please read before modifying this file.
@ -131,6 +132,8 @@ static const struct strategy {
{ QUEUE_STRATEGY_WRANDOM, "wrandom"},
};
static struct ast_taskprocessor *devicestate_tps;
#define DEFAULT_RETRY 5
#define DEFAULT_TIMEOUT 15
#define RECHECK 1 /*!< Recheck every second to see we we're at the top yet */
@ -739,18 +742,20 @@ static int update_status(const char *interface, const int status)
}
/*! \brief set a member's status based on device state of that member's interface*/
static void *handle_statechange(struct statechange *sc)
static int handle_statechange(void *datap)
{
struct member_interface *curint;
char *loc;
char *technology;
struct statechange *sc = datap;
technology = ast_strdupa(sc->dev);
loc = strchr(technology, '/');
if (loc) {
*loc++ = '\0';
} else {
return NULL;
ast_free(sc);
return 0;
}
AST_LIST_LOCK(&interfaces);
@ -770,84 +775,14 @@ static void *handle_statechange(struct statechange *sc)
if (!curint) {
if (option_debug > 2)
ast_log(LOG_DEBUG, "Device '%s/%s' changed to state '%d' (%s) but we don't care because they're not a member of any queue.\n", technology, loc, sc->state, devstate2str(sc->state));
return NULL;
return 0;
}
if (option_debug)
ast_log(LOG_DEBUG, "Device '%s/%s' changed to state '%d' (%s)\n", technology, loc, sc->state, devstate2str(sc->state));
update_status(sc->dev, sc->state);
return NULL;
}
/*! \brief Data used by the device state thread */
static struct {
/*! Set to 1 to stop the thread */
unsigned int stop:1;
/*! The device state monitoring thread */
pthread_t thread;
/*! Lock for the state change queue */
ast_mutex_t lock;
/*! Condition for the state change queue */
ast_cond_t cond;
/*! Queue of state changes */
AST_LIST_HEAD_NOLOCK(, statechange) state_change_q;
} device_state = {
.thread = AST_PTHREADT_NULL,
};
/*! \brief Consumer of the statechange queue */
static void *device_state_thread(void *data)
{
struct statechange *sc = NULL;
while (!device_state.stop) {
ast_mutex_lock(&device_state.lock);
if (!(sc = AST_LIST_REMOVE_HEAD(&device_state.state_change_q, entry))) {
ast_cond_wait(&device_state.cond, &device_state.lock);
sc = AST_LIST_REMOVE_HEAD(&device_state.state_change_q, entry);
}
ast_mutex_unlock(&device_state.lock);
/* Check to see if we were woken up to see the request to stop */
if (device_state.stop)
break;
if (!sc)
continue;
handle_statechange(sc);
ast_free(sc);
sc = NULL;
}
if (sc)
ast_free(sc);
while ((sc = AST_LIST_REMOVE_HEAD(&device_state.state_change_q, entry)))
ast_free(sc);
return NULL;
}
/*! \brief Producer of the statechange queue */
static int statechange_queue(const char *dev, enum ast_device_state state)
{
struct statechange *sc;
if (!(sc = ast_calloc(1, sizeof(*sc) + strlen(dev) + 1)))
return 0;
sc->state = state;
strcpy(sc->dev, dev);
ast_mutex_lock(&device_state.lock);
AST_LIST_INSERT_TAIL(&device_state.state_change_q, sc, entry);
ast_cond_signal(&device_state.cond);
ast_mutex_unlock(&device_state.lock);
ast_free(sc);
return 0;
}
@ -855,6 +790,8 @@ static void device_state_cb(const struct ast_event *event, void *unused)
{
enum ast_device_state state;
const char *device;
struct statechange *sc;
size_t datapsize;
state = ast_event_get_ie_uint(event, AST_EVENT_IE_STATE);
device = ast_event_get_ie_str(event, AST_EVENT_IE_DEVICE);
@ -863,8 +800,16 @@ static void device_state_cb(const struct ast_event *event, void *unused)
ast_log(LOG_ERROR, "Received invalid event that had no device IE\n");
return;
}
statechange_queue(device, state);
datapsize = sizeof(*sc) + strlen(device) + 1;
if (!(sc = ast_calloc(1, datapsize))) {
ast_log(LOG_ERROR, "failed to calloc a state change struct\n");
return;
}
sc->state = state;
strcpy(sc->dev, device);
if (ast_taskprocessor_push(devicestate_tps, handle_statechange, sc) < 0) {
ast_free(sc);
}
}
/*! \brief allocate space for new queue member and set fields based on parameters passed */
@ -6249,14 +6194,6 @@ static int unload_module(void)
struct ao2_iterator q_iter;
struct call_queue *q = NULL;
if (device_state.thread != AST_PTHREADT_NULL) {
device_state.stop = 1;
ast_mutex_lock(&device_state.lock);
ast_cond_signal(&device_state.cond);
ast_mutex_unlock(&device_state.lock);
pthread_join(device_state.thread, NULL);
}
ast_cli_unregister_multiple(cli_queue, sizeof(cli_queue) / sizeof(struct ast_cli_entry));
res = ast_manager_unregister("QueueStatus");
res |= ast_manager_unregister("Queues");
@ -6296,7 +6233,7 @@ static int unload_module(void)
queue_unref(q);
}
ao2_ref(queues, -1);
devicestate_tps = ast_taskprocessor_unreference(devicestate_tps);
return res;
}
@ -6319,10 +6256,6 @@ static int load_module(void)
if (queue_persistent_members)
reload_queue_members();
ast_mutex_init(&device_state.lock);
ast_cond_init(&device_state.cond, NULL);
ast_pthread_create(&device_state.thread, NULL, device_state_thread, NULL);
ast_cli_register_multiple(cli_queue, sizeof(cli_queue) / sizeof(struct ast_cli_entry));
res = ast_register_application(app, queue_exec, synopsis, descrip);
res |= ast_register_application(app_aqm, aqm_exec, app_aqm_synopsis, app_aqm_descrip);
@ -6345,6 +6278,11 @@ static int load_module(void)
res |= ast_custom_function_register(&queuememberlist_function);
res |= ast_custom_function_register(&queuewaitingcount_function);
res |= ast_custom_function_register(&queuememberpenalty_function);
if (!(devicestate_tps = ast_taskprocessor_get("app_queue", 0))) {
ast_log(LOG_WARNING, "devicestate taskprocessor reference failed - devicestate notifications will not occur\n");
}
if (!(device_state_sub = ast_event_subscribe(AST_EVENT_DEVICE_STATE, device_state_cb, NULL, AST_EVENT_IE_END)))
res = -1;

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