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Use linkedlist macros for parking.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@73964 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Joshua Colp
2007-07-09 02:29:00 +00:00
parent 97f5ed8be3
commit f80af1ff80
1 changed files with 37 additions and 63 deletions
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100
res/res_features.c
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@@ -170,12 +170,10 @@ struct parkeduser {
int notquiteyet;
char peername[1024];
unsigned char moh_trys;
struct parkeduser *next;
AST_LIST_ENTRY(parkeduser) list;
};
static struct parkeduser *parkinglot;
AST_MUTEX_DEFINE_STATIC(parking_lock); /*!< protects all static variables above */
static AST_LIST_HEAD_STATIC(parkinglot, parkeduser);
static pthread_t parking_thread;
@@ -366,12 +364,12 @@ int ast_park_call(struct ast_channel *chan, struct ast_channel *peer, int timeou
return -1;
/* Lock parking lot */
ast_mutex_lock(&parking_lock);
AST_LIST_LOCK(&parkinglot);
/* Check for channel variable PARKINGEXTEN */
parkingexten = pbx_builtin_getvar_helper(chan, "PARKINGEXTEN");
if (!ast_strlen_zero(parkingexten)) {
if (ast_exists_extension(NULL, parking_con, parkingexten, 1, NULL)) {
ast_mutex_unlock(&parking_lock);
AST_LIST_UNLOCK(&parkinglot);
ast_free(pu);
ast_log(LOG_WARNING, "Requested parking extension already exists: %s@%s\n", parkingexten, parking_con);
return -1; /* We failed to park this call, plain and simple so we need to error out */
@@ -383,11 +381,9 @@ int ast_park_call(struct ast_channel *chan, struct ast_channel *peer, int timeou
parking_range = parking_stop - parking_start+1;
for (i = 0; i < parking_range; i++) {
x = (i + parking_offset) % parking_range + parking_start;
cur = parkinglot;
while(cur) {
if (cur->parkingnum == x)
AST_LIST_TRAVERSE(&parkinglot, cur, list) {
if (cur->parkingnum == x)
break;
cur = cur->next;
}
if (!cur)
break;
@@ -396,7 +392,7 @@ int ast_park_call(struct ast_channel *chan, struct ast_channel *peer, int timeou
if (!(i < parking_range)) {
ast_log(LOG_WARNING, "No more parking spaces\n");
ast_free(pu);
ast_mutex_unlock(&parking_lock);
AST_LIST_UNLOCK(&parkinglot);
return -1;
}
/* Set pointer for next parking */
@@ -430,13 +426,12 @@ int ast_park_call(struct ast_channel *chan, struct ast_channel *peer, int timeou
ast_copy_string(pu->context, S_OR(chan->macrocontext, chan->context), sizeof(pu->context));
ast_copy_string(pu->exten, S_OR(chan->macroexten, chan->exten), sizeof(pu->exten));
pu->priority = chan->macropriority ? chan->macropriority : chan->priority;
pu->next = parkinglot;
parkinglot = pu;
AST_LIST_INSERT_TAIL(&parkinglot, pu, list);
/* If parking a channel directly, don't quiet yet get parking running on it */
if (peer == chan)
pu->notquiteyet = 1;
ast_mutex_unlock(&parking_lock);
AST_LIST_UNLOCK(&parkinglot);
/* Wake up the (presumably select()ing) thread */
pthread_kill(parking_thread, SIGURG);
if (option_verbose > 1)
@@ -1908,28 +1903,22 @@ static void *do_parking_thread(void *ignore)
FD_ZERO(&efds);
for (;;) {
struct parkeduser *pu, *pl, *pt = NULL;
struct parkeduser *pu;
int ms = -1; /* select timeout, uninitialized */
int max = -1; /* max fd, none there yet */
fd_set nrfds, nefds; /* args for the next select */
FD_ZERO(&nrfds);
FD_ZERO(&nefds);
ast_mutex_lock(&parking_lock);
pl = NULL;
pu = parkinglot;
/* navigate the list with prev-cur pointers to support removals */
while (pu) {
AST_LIST_LOCK(&parkinglot);
AST_LIST_TRAVERSE_SAFE_BEGIN(&parkinglot, pu, list) {
struct ast_channel *chan = pu->chan; /* shorthand */
int tms; /* timeout for this item */
int x; /* fd index in channel */
struct ast_context *con;
if (pu->notquiteyet) { /* Pretend this one isn't here yet */
pl = pu;
pu = pu->next;
if (pu->notquiteyet) /* Pretend this one isn't here yet */
continue;
}
tms = ast_tvdiff_ms(ast_tvnow(), pu->start);
if (tms > pu->parkingtime) {
ast_indicate(chan, AST_CONTROL_UNHOLD);
@@ -1974,21 +1963,16 @@ static void *do_parking_thread(void *ignore)
ast_hangup(chan);
}
/* And take them out of the parking lot */
if (pl)
pl->next = pu->next;
else
parkinglot = pu->next;
pt = pu;
pu = pu->next;
AST_LIST_REMOVE_CURRENT(&parkinglot, list);
con = ast_context_find(parking_con);
if (con) {
if (ast_context_remove_extension2(con, pt->parkingexten, 1, NULL))
if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL))
ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
else
notify_metermaids(pt->parkingexten, parking_con);
notify_metermaids(pu->parkingexten, parking_con);
} else
ast_log(LOG_WARNING, "Whoa, no parking context?\n");
ast_free(pt);
ast_free(pu);
} else { /* still within parking time, process descriptors */
for (x = 0; x < AST_MAX_FDS; x++) {
struct ast_frame *f;
@@ -2014,21 +1998,16 @@ static void *do_parking_thread(void *ignore)
ast_verbose(VERBOSE_PREFIX_2 "%s got tired of being parked\n", chan->name);
ast_hangup(chan);
/* And take them out of the parking lot */
if (pl)
pl->next = pu->next;
else
parkinglot = pu->next;
pt = pu;
pu = pu->next;
AST_LIST_REMOVE_CURRENT(&parkinglot, list);
con = ast_context_find(parking_con);
if (con) {
if (ast_context_remove_extension2(con, pt->parkingexten, 1, NULL))
if (ast_context_remove_extension2(con, pu->parkingexten, 1, NULL))
ast_log(LOG_WARNING, "Whoa, failed to remove the extension!\n");
else
notify_metermaids(pt->parkingexten, parking_con);
notify_metermaids(pu->parkingexten, parking_con);
} else
ast_log(LOG_WARNING, "Whoa, no parking context?\n");
ast_free(pt);
ast_free(pu);
break;
} else {
/*! \todo XXX Maybe we could do something with packets, like dial "0" for operator or something XXX */
@@ -2056,12 +2035,11 @@ std: for (x=0; x<AST_MAX_FDS; x++) { /* mark fds for next round */
/* Keep track of our shortest wait */
if (tms < ms || ms < 0)
ms = tms;
pl = pu;
pu = pu->next;
}
}
} /* end while */
ast_mutex_unlock(&parking_lock);
AST_LIST_TRAVERSE_SAFE_END
AST_LIST_UNLOCK(&parkinglot);
rfds = nrfds;
efds = nefds;
{
@@ -2109,7 +2087,7 @@ static int park_exec(struct ast_channel *chan, void *data)
int res = 0;
struct ast_module_user *u;
struct ast_channel *peer=NULL;
struct parkeduser *pu, *pl=NULL;
struct parkeduser *pu;
struct ast_context *con;
int park;
@@ -2123,20 +2101,17 @@ static int park_exec(struct ast_channel *chan, void *data)
u = ast_module_user_add(chan);
park = atoi((char *)data);
ast_mutex_lock(&parking_lock);
pu = parkinglot;
while(pu) {
AST_LIST_LOCK(&parkinglot);
AST_LIST_TRAVERSE_SAFE_BEGIN(&parkinglot, pu, list) {
if (pu->parkingnum == park) {
if (pl)
pl->next = pu->next;
else
parkinglot = pu->next;
AST_LIST_REMOVE_CURRENT(&parkinglot, list);
break;
}
pl = pu;
pu = pu->next;
}
ast_mutex_unlock(&parking_lock);
AST_LIST_TRAVERSE_SAFE_END
AST_LIST_UNLOCK(&parkinglot);
if (pu) {
peer = pu->chan;
con = ast_context_find(parking_con);
@@ -2421,16 +2396,15 @@ static char *handle_parkedcalls(struct ast_cli_entry *e, int cmd, struct ast_cli
ast_cli(a->fd, "%4s %25s (%-15s %-12s %-4s) %-6s \n", "Num", "Channel"
, "Context", "Extension", "Pri", "Timeout");
ast_mutex_lock(&parking_lock);
for (cur = parkinglot; cur; cur = cur->next) {
AST_LIST_LOCK(&parkinglot);
AST_LIST_TRAVERSE(&parkinglot, cur, list) {
ast_cli(a->fd, "%-10.10s %25s (%-15s %-12s %-4d) %6lds\n"
,cur->parkingexten, cur->chan->name, cur->context, cur->exten
,cur->priority, cur->start.tv_sec + (cur->parkingtime/1000) - time(NULL));
numparked++;
}
ast_mutex_unlock(&parking_lock);
AST_LIST_UNLOCK(&parkinglot);
ast_cli(a->fd, "%d parked call%s.\n", numparked, ESS(numparked));
@@ -2467,9 +2441,9 @@ static int manager_parking_status(struct mansession *s, const struct message *m)
astman_send_ack(s, m, "Parked calls will follow");
ast_mutex_lock(&parking_lock);
AST_LIST_LOCK(&parkinglot);
for (cur = parkinglot; cur; cur = cur->next) {
AST_LIST_TRAVERSE(&parkinglot, cur, list) {
astman_append(s, "Event: ParkedCall\r\n"
"Exten: %d\r\n"
"Channel: %s\r\n"
@@ -2491,7 +2465,7 @@ static int manager_parking_status(struct mansession *s, const struct message *m)
"%s"
"\r\n",idText);
ast_mutex_unlock(&parking_lock);
AST_LIST_UNLOCK(&parkinglot);
return RESULT_SUCCESS;
}