pvt->f.offset = 0;
pvt->f.datalen = 0;
pvt->f.mallocd = 0;
- ast_set_flag(&pvt->f, AST_FRFLAG_FROM_TRANSLATOR);
pvt->samples = 0;
- return &pvt->f;
+ return ast_frisolate(&pvt->f);
} else if (1 == dahdip->fake) {
dahdip->fake = 0;
pvt->f.offset = AST_FRIENDLY_OFFSET;
pvt->f.src = pvt->t->name;
pvt->f.data = pvt->outbuf;
- ast_set_flag(&pvt->f, AST_FRFLAG_FROM_TRANSLATOR);
pvt->samples = 0;
pvt->datalen = 0;
- return &pvt->f;
+ return ast_frisolate(&pvt->f);
}
/* Shouldn't get here... */
pvt->f.offset = 0;
pvt->f.datalen = 0;
pvt->f.mallocd = 0;
- ast_set_flag(&pvt->f, AST_FRFLAG_FROM_TRANSLATOR);
pvt->samples = 0;
- return &pvt->f;
+ return ast_frisolate(&pvt->f);
} else if (1 == dahdip->fake) {
pvt->samples = 0;
dahdip->fake = 0;
pvt->f.src = pvt->t->name;
pvt->f.data = pvt->outbuf;
pvt->f.samples = dahdip->required_samples;
- ast_set_flag(&pvt->f, AST_FRFLAG_FROM_TRANSLATOR);
pvt->samples = 0;
- return &pvt->f;
+ return ast_frisolate(&pvt->f);
}
/* Shouldn't get here... */
/*! \brief Get tcount (Threshold counter) */
int ast_dsp_get_tcount(struct ast_dsp *dsp);
-/*!
- * \brief Hint that a frame from a dsp was freed
- *
- * This is called from ast_frame_free if AST_FRFLAG_FROM_DSP is set. This occurs
- * because it is possible for the dsp to be freed while someone still holds a reference
- * to the frame that is in that dsp. This has been known to happen when the dsp on a DAHDI
- * channel detects a busy signal. The channel is hung up, and the application that read the
- * frame to begin with still has a reference to the frame.
- *
- * \return nothing
- */
-void ast_dsp_frame_freed(struct ast_frame *fr);
#endif /* _ASTERISK_DSP_H */
enum {
/*! This frame contains valid timing information */
AST_FRFLAG_HAS_TIMING_INFO = (1 << 0),
- /*! This frame came from a translator and is still the original frame.
- * The translator can not be free'd if the frame inside of it still has
- * this flag set. */
- AST_FRFLAG_FROM_TRANSLATOR = (1 << 1),
- /*! This frame came from a dsp and is still the original frame.
- * The dsp cannot be free'd if the frame inside of it still has
- * this flag set. */
- AST_FRFLAG_FROM_DSP = (1 << 2),
};
/*! \brief Data structure associated with a single frame of data
struct ast_trans_pvt *next; /*!< next in translator chain */
struct timeval nextin;
struct timeval nextout;
- unsigned int destroy:1;
};
/*! \brief generic frameout function */
*/
unsigned int ast_translate_available_formats(unsigned int dest, unsigned int src);
-/*!
- * \brief Hint that a frame from a translator has been freed
- *
- * This is sort of a hack. This function gets called when ast_frame_free() gets
- * called on a frame that has the AST_FRFLAG_FROM_TRANSLATOR flag set. This is
- * because it is possible for a translation path to be destroyed while a frame
- * from a translator is still in use. Specifically, this happens if a masquerade
- * happens after a call to ast_read() but before the frame is done being processed,
- * since the frame processing is generally done without the channel lock held.
- *
- * \return nothing
- */
-void ast_translate_frame_freed(struct ast_frame *fr);
-
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
memset(&dsp->f, 0, sizeof(dsp->f));
dsp->f.frametype = AST_FRAME_NULL;
ast_frfree(af);
- ast_set_flag(&dsp->f, AST_FRFLAG_FROM_DSP);
- return &dsp->f;
+ return ast_frisolate(&dsp->f);
}
if ((dsp->features & DSP_FEATURE_BUSY_DETECT) && ast_dsp_busydetect(dsp)) {
chan->_softhangup |= AST_SOFTHANGUP_DEV;
dsp->f.subclass = AST_CONTROL_BUSY;
ast_frfree(af);
ast_debug(1, "Requesting Hangup because the busy tone was detected on channel %s\n", chan->name);
- ast_set_flag(&dsp->f, AST_FRFLAG_FROM_DSP);
- return &dsp->f;
+ return ast_frisolate(&dsp->f);
}
if (((dsp->features & DSP_FEATURE_DTMF_DETECT) || (dsp->features & DSP_FEATURE_FAX_DETECT))) {
digit = __ast_dsp_digitdetect(dsp, shortdata, len, &writeback);
if (chan)
ast_queue_frame(chan, af);
ast_frfree(af);
- ast_set_flag(&dsp->f, AST_FRFLAG_FROM_DSP);
- return &dsp->f;
+ return ast_frisolate(&dsp->f);
}
} else {
if (digit) {
ast_queue_frame(chan, af);
ast_frfree(af);
}
- ast_set_flag(&dsp->f, AST_FRFLAG_FROM_DSP);
- return &dsp->f;
+ return ast_frisolate(&dsp->f);
} else {
memset(&dsp->f, 0, sizeof(dsp->f));
if (dsp->thinkdigit != 'x') {
if (chan)
ast_queue_frame(chan, af);
ast_frfree(af);
- ast_set_flag(&dsp->f, AST_FRFLAG_FROM_DSP);
- return &dsp->f;
+ return ast_frisolate(&dsp->f);
}
}
} else if (dsp->digit_state.current_digits > 1 ||
if (chan)
ast_queue_frame(chan, af);
ast_frfree(af);
- ast_set_flag(&dsp->f, AST_FRFLAG_FROM_DSP);
- return &dsp->f;
+ return ast_frisolate(&dsp->f);
}
}
if ((dsp->features & DSP_FEATURE_CALL_PROGRESS)) {
void ast_dsp_free(struct ast_dsp *dsp)
{
- if (ast_test_flag(&dsp->f, AST_FRFLAG_FROM_DSP)) {
- /* If this flag is still set, that means that the dsp's destruction
- * been torn down, while we still have a frame out there being used.
- * When ast_frfree() gets called on that frame, this ast_trans_pvt
- * will get destroyed, too. */
-
- /* Set the magic flag to destroy the dsp when the frame is freed */
- dsp->freqcount = -1;
-
- return;
- }
ast_free(dsp);
}
return dsp->tcount;
}
-void ast_dsp_frame_freed(struct ast_frame *fr)
-{
- struct ast_dsp *dsp;
-
- ast_clear_flag(fr, AST_FRFLAG_FROM_DSP);
-
- dsp = (struct ast_dsp *) (((char *) fr) - offsetof(struct ast_dsp, f));
-
- if (dsp->freqcount != -1)
- return;
-
- ast_dsp_free(dsp);
-}
static void __frame_free(struct ast_frame *fr, int cache)
{
- if (ast_test_flag(fr, AST_FRFLAG_FROM_TRANSLATOR)) {
- ast_translate_frame_freed(fr);
- } else if (ast_test_flag(fr, AST_FRFLAG_FROM_DSP)) {
- ast_dsp_frame_freed(fr);
- }
-
if (!fr->mallocd)
return;
out->seqno = fr->seqno;
}
} else {
- ast_clear_flag(fr, AST_FRFLAG_FROM_TRANSLATOR);
- ast_clear_flag(fr, AST_FRFLAG_FROM_DSP);
out = fr;
}
{
struct ast_translator *t = pvt->t;
- if (ast_test_flag(&pvt->f, AST_FRFLAG_FROM_TRANSLATOR)) {
- /* If this flag is still set, that means that the translation path has
- * been torn down, while we still have a frame out there being used.
- * When ast_frfree() gets called on that frame, this ast_trans_pvt
- * will get destroyed, too. */
-
- pvt->destroy = 1;
-
- return;
- }
-
if (t->destroy)
t->destroy(pvt);
ast_free(pvt);
f->src = pvt->t->name;
f->data = pvt->outbuf;
- ast_set_flag(f, AST_FRFLAG_FROM_TRANSLATOR);
-
- return f;
+ return ast_frisolate(f);
}
static struct ast_frame *default_frameout(struct ast_trans_pvt *pvt)
return res;
}
-
-void ast_translate_frame_freed(struct ast_frame *fr)
-{
- struct ast_trans_pvt *pvt;
-
- ast_clear_flag(fr, AST_FRFLAG_FROM_TRANSLATOR);
-
- pvt = (struct ast_trans_pvt *) (((char *) fr) - offsetof(struct ast_trans_pvt, f));
-
- if (!pvt->destroy)
- return;
-
- destroy(pvt);
-}
projects / thirdparty / asterisk.git / commitdiff
