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[Cs-dev] Small issue when inputting event to destroy table via the api

Date2009-12-28 00:54
Fromandy fillebrown
Subject[Cs-dev] Small issue when inputting event to destroy table via the api
Hi,

I ran into a small issue when inputting the message "f -1 0" to csound
via the api.  With just the 2 pfields, linevent.c reported "too few
pfields" ...

linevent.c
305        if (UNLIKELY(pcnt < 3 && e.opcod != 'e')) {       /* check
sufficient pfields */
306          csound->ErrorMsg(csound, Str("too few pfields"));
307          goto Lerr;

... so I added a dummy "0" to the message and musmon.c reported
"insert_score_event(): insufficient p-fields" ...

musmon.c
1091    /* check for required p-fields */
1092    switch (evt->opcod) {
1093      case 'f':
1094        if (UNLIKELY(evt->pcnt < 4))
1095          goto pfld_err;

... so I added another dummy "0" to the message and the api deleted
the table without complaint.

The final workaround message sent to Csound via the api was "f -1 0 0 0".

No worries ...just posting here so I'll be able to search for it when
I forget why it doesn't work in a few months =)

Cheers,
~ andy.f

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Date2009-12-28 10:26
FromVictor Lazzarini
SubjectRe: [Cs-dev] Small issue when inputting event to destroy table via the api
Perhaps we can add a case where if the p1 is negative we don't look  
for any further
p-fields?

Victor
On 28 Dec 2009, at 00:54, andy fillebrown wrote:

> Hi,
>
> I ran into a small issue when inputting the message "f -1 0" to csound
> via the api.  With just the 2 pfields, linevent.c reported "too few
> pfields" ...
>
> linevent.c
> 305        if (UNLIKELY(pcnt < 3 && e.opcod != 'e')) {       /* check
> sufficient pfields */
> 306          csound->ErrorMsg(csound, Str("too few pfields"));
> 307          goto Lerr;
>
> ... so I added a dummy "0" to the message and musmon.c reported
> "insert_score_event(): insufficient p-fields" ...
>
> musmon.c
> 1091    /* check for required p-fields */
> 1092    switch (evt->opcod) {
> 1093      case 'f':
> 1094        if (UNLIKELY(evt->pcnt < 4))
> 1095          goto pfld_err;
>
> ... so I added another dummy "0" to the message and the api deleted
> the table without complaint.
>
> The final workaround message sent to Csound via the api was "f -1 0  
> 0 0".
>
> No worries ...just posting here so I'll be able to search for it when
> I forget why it doesn't work in a few months =)
>
> Cheers,
> ~ andy.f
>
> ------------------------------------------------------------------------------
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Date2009-12-28 18:10
Fromjohn ffitch
SubjectRe: [Cs-dev] Small issue when inputting event to destroy table via the api
> Perhaps we can add a case where if the p1 is negative we don't look  
> for any further
> p-fields?

Think that is done

==John ffitch

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Date2009-12-28 19:22
Fromandy fillebrown
SubjectRe: [Cs-dev] Small issue when inputting event to destroy table via the api
Thank you John.

Cheers,
~ andy.f



On Mon, Dec 28, 2009 at 1:10 PM, john ffitch  wrote:
>> Perhaps we can add a case where if the p1 is negative we don't look
>> for any further
>> p-fields?
>
> Think that is done
>
> ==John ffitch
>
> ------------------------------------------------------------------------------
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Date2009-12-29 12:51
Fromandy fillebrown
SubjectRe: [Cs-dev] Small issue when inputting event to destroy table via the api
One more needs relaxing in musmon.c ...

musmon.c
1099       case 'a':
1100        if (UNLIKELY(evt->pcnt < 3))
1101         goto pfld_err;

~ andy.f



On Mon, Dec 28, 2009 at 2:22 PM, andy fillebrown
 wrote:
> Thank you John.
>
> Cheers,
> ~ andy.f
>
>
>
> On Mon, Dec 28, 2009 at 1:10 PM, john ffitch  wrote:
>>> Perhaps we can add a case where if the p1 is negative we don't look
>>> for any further
>>> p-fields?
>>
>> Think that is done
>>
>> ==John ffitch
>>
>> ------------------------------------------------------------------------------
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>>
>

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Date2009-12-30 10:54
Fromjohn ffitch
SubjectRe: [Cs-dev] Small issue when inputting event to destroy table via the api
> One more needs relaxing in musmon.c ...
> 
> musmon.c
> 1099       case 'a':
> 1100        if (UNLIKELY(evt->pcnt < 3))
> 1101         goto pfld_err;
> 
> ~ andy.f

Do not understand: a is said to need 3 arguments.  The manual says

  p1    Carries no meaning. Usually zero.
  p2    Action time, in beats, at which advance is to begin.
  p3    Number of beats to advance without producing sound.

==John ffitch

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Date2009-12-30 12:37
Fromandy fillebrown
SubjectRe: [Cs-dev] Small issue when inputting event to destroy table via the api
Sorry, I should have pasted more of the switch statement: It's falling
through to line 1100 from case 'f'...

musmon.c
1093    switch (evt->opcod) {
1094      case 'f':
1095        if (UNLIKELY((evt->pcnt < 4) && (p[1]>0)))
1096          goto pfld_err;
1097      case 'i':
1098      case 'q':
1099      case 'a':
1100        if (UNLIKELY(evt->pcnt < 3))
1101          goto pfld_err;

... so the lineevent "f -1 0" still fails, despite the fix at line 1095

Cheers,
~ andy.f



On Wed, Dec 30, 2009 at 5:54 AM, john ffitch  wrote:
>> One more needs relaxing in musmon.c ...
>>
>> musmon.c
>> 1099       case 'a':
>> 1100        if (UNLIKELY(evt->pcnt < 3))
>> 1101         goto pfld_err;
>>
>> ~ andy.f
>
> Do not understand: a is said to need 3 arguments.  The manual says
>
>  p1    Carries no meaning. Usually zero.
>  p2    Action time, in beats, at which advance is to begin.
>  p3    Number of beats to advance without producing sound.
>
> ==John ffitch
>
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> Take advantage of Verizon's best-in-class app development support
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>

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