Asterisk
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asterisk
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@192 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.0
Mark Spencer 26 years ago
parent 2ebdf66e5f
commit cb625a6d3c
2 changed files with 256 additions and 74 deletions
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64
Makefile
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@ -16,16 +16,31 @@
MODULES_DIR=/usr/lib/asterisk/modules
# Pentium Pro Optimize
#PROC=i686
# Pentium Optimize
PROC=i586
DEBUG=-g #-pg
INCLUDE=-Iinclude -I../include
CFLAGS=-pipe -Wall -Werror -Wmissing-prototypes -Wmissing-declarations -O6 $(DEBUG) $(INCLUDE) -D_REENTRANT
CFLAGS+=$(shell if $(CC) -march=i686 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=i686"; fi)
CFLAGS+=$(shell if $(CC) -march=$(PROC) -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=$(PROC)"; fi)
SUBDIRS=channels pbx apps codecs formats
LIBS=-ldl -lpthread -lreadline # -lefence
OBJS=io.o sched.o logger.o frame.o loader.o config.o channel.o translate.o file.o say.o pbx.o cli.o asterisk.o
LIBS=-ldl -lpthread -lreadline #-lefence
OBJS=io.o sched.o logger.o frame.o loader.o config.o channel.o translate.o file.o say.o pbx.o cli.o md5.o asterisk.o
CC=gcc
INSTALL=install
_all: all
@echo " +--------- Asterisk Build Complete ---------+"
@echo " + Asterisk has successfully been built, but +"
@echo " + cannot be run before being installed by +"
@echo " + running: +"
@echo " + +"
@echo " + make install +"
@echo " + +"
@echo " +-------------------------------------------+"
all: asterisk subdirs
asterisk: $(OBJS)
@ -38,8 +53,51 @@ clean:
for x in $(SUBDIRS); do $(MAKE) -C $$x clean || exit 1 ; done
rm -f *.o *.so asterisk
datafiles: all
mkdir -p /var/lib/asterisk/sounds/digits
for x in sounds/digits/*; do \
install $$x /var/lib/asterisk/sounds/digits ; \
done
for x in sounds/vm-* sounds/transfer* ; do \
install $$x /var/lib/asterisk/sounds ; \
done
install: all
mkdir -p $(MODULES_DIR)
for x in $(SUBDIRS); do $(MAKE) -C $$x install || exit 1 ; done
install -d /usr/include/asterisk
install include/asterisk/*.h /usr/include/asterisk
rm -f /var/lib/asterisk/sounds/vm
mkdir -p /var/spool/asterisk/vm
rm -f /usr/lib/asterisk/modules/chan_ixj.so
( cd /var/lib/asterisk/sounds ; ln -s ../../../spool/asterisk/vm . )
@echo " +---- Asterisk Installation Complete -------+"
@echo " + Asterisk has successfully been installed. +"
@echo " + If you would like to install the sample +"
@echo " + configuration files (overwriting any +"
@echo " + existing config files), run: +"
@echo " + +"
@echo " + make samples +"
@echo " + +"
@echo " +-------------------------------------------+"
samples: all datafiles
mkdir -p /etc/asterisk
for x in configs/*.sample; do \
if [ -f /etc/asterisk/`basename $$x .sample` ]; then \
mv -f /etc/asterisk/`basename $$x .sample` /etc/asterisk/`basename $$x .sample`.old ; \
fi ; \
install $$x /etc/asterisk/`basename $$x .sample` ;\
done
for x in sounds/demo-*; do \
install $$x /var/lib/asterisk/sounds; \
done
mkdir -p /var/lib/asterisk/sounds/vm/1234
:> /var/lib/asterisk/sounds/vm/1234/unavail.gsm
for x in vm-theperson digits/1 digits/2 digits/3 digits/4 vm-isunavail; do \
cat /var/lib/asterisk/sounds/$$x.gsm >> /var/lib/asterisk/sounds/vm/1234/unavail.gsm ; \
done
:> /var/lib/asterisk/sounds/vm/1234/busy.gsm
for x in vm-theperson digits/1 digits/2 digits/3 digits/4 vm-isonphone; do \
cat /var/lib/asterisk/sounds/$$x.gsm >> /var/lib/asterisk/sounds/vm/1234/busy.gsm ; \
done

266
translate.c
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@ -16,6 +16,9 @@
#include <asterisk/logger.h>
#include <asterisk/translate.h>
#include <asterisk/options.h>
#include <asterisk/frame.h>
#include <asterisk/sched.h>
#include <asterisk/cli.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <unistd.h>
@ -24,6 +27,16 @@
#include <string.h>
#include <stdio.h>
/* Uncomment the EXPERIMENTAL_TRANSLATION to enable a more complicated, but probably more
correct way of handling full duplex translation */
/*
#define EXPERIMENTAL_TRANSLATION
*/
/* This could all be done more efficiently *IF* we chained packets together
by default, but it would also complicate virtually every application. */
static char *type = "Trans";
static pthread_mutex_t list_lock = PTHREAD_MUTEX_INITIALIZER;
@ -34,6 +47,15 @@ struct ast_translator_dir {
int cost; /* Complete cost to destination */
};
struct ast_frame_delivery {
struct ast_frame *f;
struct ast_channel *chan;
int fd;
struct translator_pvt *owner;
struct ast_frame_delivery *prev;
struct ast_frame_delivery *next;
};
static struct ast_translator_dir tr_matrix[MAX_FORMAT][MAX_FORMAT];
struct ast_trans_pvt {
@ -59,9 +81,69 @@ struct translator_pvt {
struct ast_trans_pvt *system;
struct ast_trans_pvt *rsystem;
struct timeval lastpass;
#ifdef EXPERIMENTAL_TRANSLATION
struct ast_frame_delivery *head;
struct ast_frame_delivery *tail;
struct sched_context *sched;
#endif
pthread_t threadid;
};
#ifdef EXPERIMENTAL_TRANSLATION
static int deliver(void *data)
{
struct ast_frame_delivery *del = data;
ast_log(LOG_DEBUG, "Delivering a packet\n");
if (del->f) {
if (del->chan)
ast_write(del->chan, del->f);
else
ast_fr_fdwrite(del->fd, del->f);
ast_frfree(del->f);
}
/* Take us out of the list */
if (del->prev)
del->prev->next = del->next;
else
del->owner->head = del->next;
if (del->next)
del->next->prev = del->prev;
else
del->owner->tail = del->prev;
/* Free used memory */
free(del);
/* Never run again */
return 0;
}
/* Schedule the delivery of a packet in the near future, using the given context */
static int schedule_delivery(struct sched_context *sched, struct translator_pvt *p, struct ast_channel *c,
int fd, struct ast_frame *f, int ms)
{
struct ast_frame_delivery *del;
ast_log(LOG_DEBUG, "Scheduling a packet delivery\n");
del = malloc(sizeof(struct ast_frame_delivery));
if (del) {
del->f = ast_frdup(f);
del->chan = c;
del->fd = fd;
del->owner = p;
if (p->tail) {
del->prev = p->tail;
p->tail = del;
del->next = NULL;
} else {
p->head = p->tail = del;
del->next = NULL;
del->prev = NULL;
}
ast_sched_add(sched, ms, deliver, del);
return 0;
} else
return -1;
}
#endif
static int translator_hangup(struct ast_channel *chan)
{
ast_log(LOG_WARNING, "Explicit hangup on '%s' not recommended! Call translator_destroy() instead.\n", chan->name);
@ -107,6 +189,18 @@ void ast_translator_free_path(struct ast_trans_pvt *p)
static void ast_translator_free(struct translator_pvt *pvt)
{
#ifdef EXPERIMENTAL_TRANSLATION
struct ast_frame_delivery *d, *dl;
if (pvt->sched)
sched_context_destroy(pvt->sched);
d = pvt->head;
while(d) {
dl = d;
d = d->next;
ast_frfree(dl->f);
free(dl);
}
#endif
ast_translator_free_path(pvt->system);
ast_translator_free_path(pvt->rsystem);
if (pvt->comm[0] > -1)
@ -150,71 +244,23 @@ struct ast_trans_pvt *ast_translator_build_path(int source, int dest)
ast_log(LOG_WARNING, "Out of memory\n");
return NULL;
}
} else {
/* We shouldn't have allocated any memory */
ast_log(LOG_WARNING, "No translator path from %d to %d\n", source, dest);
return NULL;
}
}
return tmpr;
}
static struct ast_frame *fd_read(int fd)
{
char buf[4096];
int res;
struct ast_frame *f = (struct ast_frame *)buf;
/* Read a frame directly from there. They're always in the
right format. */
if (read(fd, buf, sizeof(struct ast_frame))
== sizeof(struct ast_frame)) {
/* read the frame header */
f->mallocd = 0;
/* Re-write data position */
f->data = buf + sizeof(struct ast_frame) + AST_FRIENDLY_OFFSET;
f->offset = AST_FRIENDLY_OFFSET;
/* Forget about being mallocd */
f->mallocd = 0;
/* Re-write the source */
f->src = __FUNCTION__;
if (f->datalen > sizeof(buf) - sizeof(struct ast_frame) - AST_FRIENDLY_OFFSET) {
/* Really bad read */
ast_log(LOG_WARNING, "Strange read (%d bytes)\n", f->datalen);
return NULL;
}
if (f->datalen) {
if ((res = read(fd, f->data, f->datalen)) != f->datalen) {
/* Bad read */
ast_log(LOG_WARNING, "How very strange, expected %d, got %d\n", f->datalen, res);
return NULL;
}
}
return ast_frisolate(f);
} else if (option_debug)
ast_log(LOG_DEBUG, "NULL or invalid header\n");
/* Null if there was an error */
return NULL;
}
static struct ast_frame *translator_read(struct ast_channel *chan)
{
return fd_read(chan->fd);
}
static int fd_write(int fd, struct ast_frame *frame)
{
/* Write the frame exactly */
if (write(fd, frame, sizeof(struct ast_frame)) != sizeof(struct ast_frame)) {
ast_log(LOG_WARNING, "Write error\n");
return -1;
}
if (write(fd, frame->data, frame->datalen) != frame->datalen) {
ast_log(LOG_WARNING, "Write error\n");
return -1;
}
return 0;
return ast_fr_fdread(chan->fd);
}
static int translator_write(struct ast_channel *chan, struct ast_frame *frame)
{
return fd_write(chan->fd, frame);
return ast_fr_fdwrite(chan->fd, frame);
}
struct ast_frame_chain *ast_translate(struct ast_trans_pvt *path, struct ast_frame *f)
@ -256,9 +302,9 @@ struct ast_frame_chain *ast_translate(struct ast_trans_pvt *path, struct ast_fra
return outc;
}
#define FUDGE 2
#define FUDGE 0
static void translator_apply(struct ast_trans_pvt *path, struct ast_frame *f, int fd, struct ast_channel *c, struct timeval *last)
static void translator_apply(struct translator_pvt *pvt, struct ast_trans_pvt *path, struct ast_frame *f, int fd, struct ast_channel *c, struct timeval *last)
{
struct ast_trans_pvt *p;
struct ast_frame *out;
@ -279,15 +325,33 @@ static void translator_apply(struct ast_trans_pvt *path, struct ast_frame *f, in
gettimeofday(&tv, NULL);
ms = 1000 * (tv.tv_sec - last->tv_sec) +
(tv.tv_usec - last->tv_usec) / 1000;
#ifdef EXPERIMENTAL_TRANSLATION
if (ms + FUDGE < out->timelen)
schedule_delivery(pvt->sched, pvt,
c, fd, out, ms);
else {
if (c)
ast_write(c, out);
else
ast_fr_fdwrite(fd, out);
}
last->tv_sec = tv.tv_sec;
last->tv_usec = tv.tv_usec;
/* Schedule this packet to be delivered at the
right time */
} else
#else
/* XXX Not correct in the full duplex case XXX */
if (ms + FUDGE < out->timelen)
usleep((out->timelen - ms - FUDGE) * 1000);
last->tv_sec = tv.tv_sec;
last->tv_usec = tv.tv_usec;
}
#endif
if (c)
ast_write(c, out);
else
fd_write(fd, out);
ast_fr_fdwrite(fd, out);
}
ast_frfree(out);
}
@ -331,14 +395,14 @@ static void *translator_thread(void *data)
}
if (f->frametype == AST_FRAME_VOICE) {
if (pvt->system)
translator_apply(pvt->system, f, fd, NULL, &pvt->lastpass);
translator_apply(pvt, pvt->system, f, fd, NULL, &pvt->lastpass);
} else {
/* If it's not voice, just pass it along */
fd_write(fd, f);
ast_fr_fdwrite(fd, f);
}
ast_frfree(f);
} else {
f = fd_read(res);
f = ast_fr_fdread(res);
if (!f) {
if (option_debug)
ast_log(LOG_DEBUG, "Empty (hangup) frame\n");
@ -347,7 +411,7 @@ static void *translator_thread(void *data)
if (f->frametype == AST_FRAME_VOICE) {
if (pvt->rsystem)
translator_apply(pvt->rsystem, f, -1, real, &pvt->lastpass);
translator_apply(pvt, pvt->rsystem, f, -1, real, &pvt->lastpass);
} else {
ast_write(real, f);
}
@ -384,9 +448,21 @@ struct ast_channel *ast_translator_create(struct ast_channel *real, int format,
pvt->comm[1] = -1;
pvt->lastpass.tv_usec = 0;
pvt->lastpass.tv_sec = 0;
#ifdef EXPERIMENTAL_TRANSLATION
pvt->head = NULL;
pvt->tail = NULL;
pvt->sched = sched_context_create();
if (!pvt->sched) {
ast_log(LOG_WARNING, "Out of memory\n");
ast_translator_free(pvt);
return NULL;
}
#endif
if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pvt->comm)) {
ast_log(LOG_WARNING, "Unable to create UNIX domain socket on '%s'\n", real->name);
ast_translator_free(pvt);
return NULL;
}
/* In to the system */
if (direction & AST_DIRECTION_IN)
@ -534,6 +610,46 @@ static void calc_cost(struct ast_translator *t)
t->cost = cost;
}
static int show_translation(int fd, int argc, char *argv[])
{
#define SHOW_TRANS 14
int x,y;
char line[80];
if (argc != 2)
return RESULT_SHOWUSAGE;
ast_cli(fd, " Translation times between formats (in milliseconds)\n");
ast_cli(fd, " Destination Format\n");
pthread_mutex_lock(&list_lock);
for (x=0;x<SHOW_TRANS; x++) {
if (x == 1)
strcpy(line, " Src ");
else if (x == 2)
strcpy(line, " Fmt ");
else
strcpy(line, " ");
for (y=0;y<SHOW_TRANS;y++) {
if (tr_matrix[x][y].step)
snprintf(line + strlen(line), sizeof(line) - strlen(line), " %4d", tr_matrix[x][y].cost);
else
snprintf(line + strlen(line), sizeof(line) - strlen(line), " n/a");
}
snprintf(line + strlen(line), sizeof(line) - strlen(line), "\n");
ast_cli(fd, line);
}
pthread_mutex_unlock(&list_lock);
return RESULT_SUCCESS;
}
static int added_cli = 0;
static char show_trans_usage[] =
"Usage: show translation\n"
" Displays known codec translators and the cost associated\n"
"with each conversion.\n";
static struct ast_cli_entry show_trans =
{ { "show", "translation", NULL }, show_translation, "Display translation matrix", show_trans_usage };
int ast_register_translator(struct ast_translator *t)
{
t->srcfmt = powerof(t->srcfmt);
@ -546,6 +662,10 @@ int ast_register_translator(struct ast_translator *t)
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "Registered translator '%s' from format %d to %d, cost %d\n", t->name, t->srcfmt, t->dstfmt, t->cost);
pthread_mutex_lock(&list_lock);
if (!added_cli) {
ast_cli_register(&show_trans);
added_cli++;
}
t->next = list;
list = t;
rebuild_matrix();
@ -566,6 +686,7 @@ int ast_unregister_translator(struct ast_translator *t)
list = u->next;
break;
}
ul = u;
u = u->next;
}
rebuild_matrix();
@ -599,20 +720,23 @@ void ast_translator_destroy(struct ast_channel *trans)
int ast_translator_best_choice(int dst, int srcs)
{
/* Calculate our best source format, given costs, and a desired destination */
int x;
int x,y;
int best=-1;
int cur = 1;
int besttime=999999999;
dst = powerof(dst);
pthread_mutex_lock(&list_lock);
for (x=0;x<MAX_FORMAT;x++) {
if (tr_matrix[x][dst].step && /* There's a step */
(tr_matrix[x][dst].cost < besttime) && /* We're better than what exists now */
(srcs & (1 << x))) /* x is a valid source format */
{
best = 1 << x;
besttime = tr_matrix[x][dst].cost;
for (y=0;y<MAX_FORMAT;y++) {
if (cur & dst)
for (x=0;x<MAX_FORMAT;x++) {
if (tr_matrix[x][y].step && /* There's a step */
(tr_matrix[x][y].cost < besttime) && /* We're better than what exists now */
(srcs & (1 << x))) /* x is a valid source format */
{
best = 1 << x;
besttime = tr_matrix[x][dst].cost;
}
}
cur = cur << 1;
}
pthread_mutex_unlock(&list_lock);
return best;

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