indications.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <asterisk/indications.h>
#include <asterisk/frame.h>
#include <asterisk/options.h>
#include <asterisk/channel.h>
#include <asterisk/logger.h>
#include <asterisk/lock.h>

Include dependency graph for indications.c:

Go to the source code of this file.

Data Structures

struct  playtones_item
struct  playtones_def
struct  playtones_state

Functions

int ast_playtones_start (struct ast_channel *chan, int vol, const char *playlst, int interruptible)
void ast_playtones_stop (struct ast_channel *chan)
 AST_MUTEX_DEFINE_EXPORTED (tzlock)
int ast_set_indication_country (const char *country)
struct tone_zoneast_get_indication_zone (const char *country)
struct tone_zone_soundast_get_indication_tone (const struct tone_zone *zone, const char *indication)
int ast_register_indication_country (struct tone_zone *zone)
int ast_unregister_indication_country (const char *country)
int ast_register_indication (struct tone_zone *zone, const char *indication, const char *tonelist)
int ast_unregister_indication (struct tone_zone *zone, const char *indication)

Variables

struct tone_zonetone_zones


Function Documentation

struct tone_zone_sound* ast_get_indication_tone ( const struct tone_zone zone,
const char *  indication 
) [read]

Definition at line 289 of file indications.c.

00290 {
00291    struct tone_zone_sound *ts;
00292 
00293    /* we need some tonezone, pick the first */
00294    if (zone == NULL && current_tonezone)
00295       zone = current_tonezone;   /* default country? */
00296    if (zone == NULL && tone_zones)
00297       zone = tone_zones;      /* any country? */
00298    if (zone == NULL)
00299       return 0;   /* not a single country insight */
00300 
00301    if (ast_mutex_lock(&tzlock)) {
00302       ast_log(LOG_WARNING, "Unable to lock tone_zones list\n");
00303       return 0;
00304    }
00305    for (ts=zone->tones; ts; ts=ts->next) {
00306       if (strcasecmp(indication,ts->name)==0) {
00307          /* found indication! */
00308          ast_mutex_unlock(&tzlock);
00309          return ts;
00310       }
00311    }
00312    /* nothing found, sorry */
00313    ast_mutex_unlock(&tzlock);
00314    return 0;
00315 }

struct tone_zone* ast_get_indication_zone ( const char *  country  )  [read]

Definition at line 251 of file indications.c.

00252 {
00253    struct tone_zone *tz;
00254    int alias_loop = 0;
00255 
00256    /* we need some tonezone, pick the first */
00257    if (country == NULL && current_tonezone)
00258       return current_tonezone;   /* default country? */
00259    if (country == NULL && tone_zones)
00260       return tone_zones;      /* any country? */
00261    if (country == NULL)
00262       return 0;   /* not a single country insight */
00263 
00264    if (ast_mutex_lock(&tzlock)) {
00265       ast_log(LOG_WARNING, "Unable to lock tone_zones list\n");
00266       return 0;
00267    }
00268    do {
00269       for (tz=tone_zones; tz; tz=tz->next) {
00270          if (strcasecmp(country,tz->country)==0) {
00271             /* tone_zone found */
00272             if (tz->alias && tz->alias[0]) {
00273                country = tz->alias;
00274                break;
00275             }
00276             ast_mutex_unlock(&tzlock);
00277             return tz;
00278          }
00279       }
00280    } while (++alias_loop<20 && tz);
00281    ast_mutex_unlock(&tzlock);
00282    if (alias_loop==20)
00283       ast_log(LOG_NOTICE,"Alias loop for '%s' forcefull broken\n",country);
00284    /* nothing found, sorry */
00285    return 0;
00286 }

AST_MUTEX_DEFINE_EXPORTED ( tzlock   ) 

int ast_playtones_start ( struct ast_channel chan,
int  vol,
const char *  playlst,
int  interruptible 
)

Definition at line 150 of file indications.c.

00151 {
00152    char *s, *data = ast_strdupa(playlst); /* cute */
00153    struct playtones_def d = { vol, -1, 0, 1, NULL};
00154    char *stringp=NULL;
00155    char *separator;
00156    if (!data)
00157       return -1;
00158    if (vol < 1)
00159       d.vol = 8192;
00160 
00161    d.interruptible = interruptible;
00162    
00163    stringp=data;
00164    /* the stringp/data is not null here */
00165    /* check if the data is separated with '|' or with ',' by default */
00166    if (strchr(stringp,'|'))
00167       separator = "|";
00168    else
00169       separator = ",";
00170    s = strsep(&stringp,separator);
00171    while (s && *s) {
00172       int freq1, freq2, time, modulate=0;
00173 
00174       if (s[0]=='!')
00175          s++;
00176       else if (d.reppos == -1)
00177          d.reppos = d.nitems;
00178       if (sscanf(s, "%d+%d/%d", &freq1, &freq2, &time) == 3) {
00179          /* f1+f2/time format */
00180       } else if (sscanf(s, "%d+%d", &freq1, &freq2) == 2) {
00181          /* f1+f2 format */
00182          time = 0;
00183       } else if (sscanf(s, "%d*%d/%d", &freq1, &freq2, &time) == 3) {
00184          /* f1*f2/time format */
00185          modulate = 1;
00186       } else if (sscanf(s, "%d*%d", &freq1, &freq2) == 2) {
00187          /* f1*f2 format */
00188          time = 0;
00189          modulate = 1;
00190       } else if (sscanf(s, "%d/%d", &freq1, &time) == 2) {
00191          /* f1/time format */
00192          freq2 = 0;
00193       } else if (sscanf(s, "%d", &freq1) == 1) {
00194          /* f1 format */
00195          freq2 = 0;
00196          time = 0;
00197       } else {
00198          ast_log(LOG_WARNING,"%s: tone component '%s' of '%s' is no good\n",chan->name,s,playlst);
00199          return -1;
00200       }
00201 
00202       d.items = realloc(d.items,(d.nitems+1)*sizeof(struct playtones_item));
00203       if (d.items == NULL)
00204          return -1;
00205       d.items[d.nitems].freq1    = freq1;
00206       d.items[d.nitems].freq2    = freq2;
00207       d.items[d.nitems].duration = time;
00208       d.items[d.nitems].modulate = modulate;
00209       d.nitems++;
00210 
00211       s = strsep(&stringp,separator);
00212    }
00213 
00214    if (ast_activate_generator(chan, &playtones, &d)) {
00215       free(d.items);
00216       return -1;
00217    }
00218    return 0;
00219 }

void ast_playtones_stop ( struct ast_channel chan  ) 

Stop the tones from playing

Definition at line 221 of file indications.c.

00222 {
00223    ast_deactivate_generator(chan);
00224 }

int ast_register_indication ( struct tone_zone zone,
const char *  indication,
const char *  tonelist 
)

Definition at line 420 of file indications.c.

00421 {
00422    struct tone_zone_sound *ts,*ps;
00423 
00424    /* is it an alias? stop */
00425    if (zone->alias[0])
00426       return -1;
00427 
00428    if (ast_mutex_lock(&tzlock)) {
00429       ast_log(LOG_WARNING, "Unable to lock tone_zones list\n");
00430       return -2;
00431    }
00432    for (ps=NULL,ts=zone->tones; ts; ps=ts,ts=ts->next) {
00433       if (strcasecmp(indication,ts->name)==0) {
00434          /* indication already there, replace */
00435          free((void*)ts->name);
00436          free((void*)ts->data);
00437          break;
00438       }
00439    }
00440    if (!ts) {
00441       /* not there, we have to add */
00442       ts = malloc(sizeof(struct tone_zone_sound));
00443       if (!ts) {
00444          ast_log(LOG_WARNING, "Out of memory\n");
00445          ast_mutex_unlock(&tzlock);
00446          return -2;
00447       }
00448       ts->next = NULL;
00449    }
00450    ts->name = strdup(indication);
00451    ts->data = strdup(tonelist);
00452    if (ts->name==NULL || ts->data==NULL) {
00453       ast_log(LOG_WARNING, "Out of memory\n");
00454       ast_mutex_unlock(&tzlock);
00455       return -2;
00456    }
00457    if (ps)
00458       ps->next = ts;
00459    else
00460       zone->tones = ts;
00461    ast_mutex_unlock(&tzlock);
00462    return 0;
00463 }

int ast_register_indication_country ( struct tone_zone zone  ) 

Definition at line 335 of file indications.c.

00336 {
00337    struct tone_zone *tz,*pz;
00338 
00339    if (ast_mutex_lock(&tzlock)) {
00340       ast_log(LOG_WARNING, "Unable to lock tone_zones list\n");
00341       return -1;
00342    }
00343    for (pz=NULL,tz=tone_zones; tz; pz=tz,tz=tz->next) {
00344       if (strcasecmp(zone->country,tz->country)==0) {
00345          /* tone_zone already there, replace */
00346          zone->next = tz->next;
00347          if (pz)
00348             pz->next = zone;
00349          else
00350             tone_zones = zone;
00351          /* if we are replacing the default zone, re-point it */
00352          if (tz == current_tonezone)
00353             current_tonezone = zone;
00354          /* now free the previous zone */
00355          free_zone(tz);
00356          ast_mutex_unlock(&tzlock);
00357          return 0;
00358       }
00359    }
00360    /* country not there, add */
00361    zone->next = NULL;
00362    if (pz)
00363       pz->next = zone;
00364    else
00365       tone_zones = zone;
00366    ast_mutex_unlock(&tzlock);
00367 
00368    if (option_verbose > 2)
00369       ast_verbose(VERBOSE_PREFIX_3 "Registered indication country '%s'\n",zone->country);
00370    return 0;
00371 }

int ast_set_indication_country ( const char *  country  ) 

Definition at line 236 of file indications.c.

00237 {
00238    if (country) {
00239       struct tone_zone *z = ast_get_indication_zone(country);
00240       if (z) {
00241          if (option_verbose > 2)
00242             ast_verbose(VERBOSE_PREFIX_3 "Setting default indication country to '%s'\n",country);
00243          current_tonezone = z;
00244          return 0;
00245       }
00246    }
00247    return 1; /* not found */
00248 }

int ast_unregister_indication ( struct tone_zone zone,
const char *  indication 
)

Definition at line 466 of file indications.c.

00467 {
00468    struct tone_zone_sound *ts,*ps = NULL, *tmp;
00469    int res = -1;
00470 
00471    /* is it an alias? stop */
00472    if (zone->alias[0])
00473       return -1;
00474 
00475    if (ast_mutex_lock(&tzlock)) {
00476       ast_log(LOG_WARNING, "Unable to lock tone_zones list\n");
00477       return -1;
00478    }
00479    ts = zone->tones;
00480    while (ts) {
00481       if (strcasecmp(indication,ts->name)==0) {
00482          /* indication found */
00483          tmp = ts->next;
00484          if (ps)
00485             ps->next = tmp;
00486          else
00487             zone->tones = tmp;
00488          free((void*)ts->name);
00489          free((void*)ts->data);
00490          free(ts);
00491          ts = tmp;
00492          res = 0;
00493       }
00494       else {
00495          /* next zone please */
00496          ps = ts;
00497          ts = ts->next;
00498       }
00499    }
00500    /* indication not found, goodbye */
00501    ast_mutex_unlock(&tzlock);
00502    return res;
00503 }

int ast_unregister_indication_country ( const char *  country  ) 

Definition at line 375 of file indications.c.

00376 {
00377    struct tone_zone *tz, *pz = NULL, *tmp;
00378    int res = -1;
00379 
00380    if (ast_mutex_lock(&tzlock)) {
00381       ast_log(LOG_WARNING, "Unable to lock tone_zones list\n");
00382       return -1;
00383    }
00384    tz = tone_zones;
00385    while (tz) {
00386       if (country==NULL ||
00387           (strcasecmp(country, tz->country)==0 ||
00388            strcasecmp(country, tz->alias)==0)) {
00389          /* tone_zone found, remove */
00390          tmp = tz->next;
00391          if (pz)
00392             pz->next = tmp;
00393          else
00394             tone_zones = tmp;
00395          /* if we are unregistering the default country, w'll notice */
00396          if (tz == current_tonezone) {
00397             ast_log(LOG_NOTICE,"Removed default indication country '%s'\n",tz->country);
00398             current_tonezone = NULL;
00399          }
00400          if (option_verbose > 2)
00401             ast_verbose(VERBOSE_PREFIX_3 "Unregistered indication country '%s'\n",tz->country);
00402          free_zone(tz);
00403          if (tone_zones == tz)
00404             tone_zones = tmp;
00405          tz = tmp;
00406          res = 0;
00407       }
00408       else {
00409          /* next zone please */
00410          pz = tz;
00411          tz = tz->next;
00412       }
00413    }
00414    ast_mutex_unlock(&tzlock);
00415    return res;
00416 }


Variable Documentation

Definition at line 228 of file indications.c.


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