Oh thank you Mike.

I overlook the if (vdata) code block in between if(local_clobber) and if (!local_clobber). So actually if (!local_clobber) it will override the local variables by setting the global ones inside the {…}.

So it’s clear now.

Thanks again.

Alex To

From: freeswitch-dev-bounces@lists.freeswitch.org [mailto:freeswitch-dev-bounces@lists.freeswitch.org] On Behalf Of Anthony Minessale
Sent: Tuesday, January 26, 2010 11:27 PM
To: freeswitch-dev@lists.freeswitch.org
Subject: Re: [Freeswitch-dev] Need help on switch_ivr_originate(...) in switch_ivr_originate.c

local_clobber true|false (default false)

whether or not to allow (per-leg) local variables inside [] to take precedence over originate global variables in {}


{foo=value1,local_clobber=false}sofia/internal/100@test.com,[foo=value2]sofia/internal/101@test.com

foo will be value1 on both legs

{foo=value1,local_clobber=true}sofia/internal/100@test.com,[foo=value2]sofia/internal/101@test.com


foo will be value1 on all legs except the 101 who set it to value2

On Tue, Jan 26, 2010 at 5:53 AM, Alex To <tonhudung@gmail.com> wrote:

Hi,

Would somebody enlighten me on this trunk of code in the mentioned file at line 2273:

if (local_clobber) {

if (var_event) {

                                    switch_event_t *event;

                                    switch_event_header_t *header;

/* install the vars from the {} params */

for (header = var_event->headers; header; header = header->next) {

                                          switch_channel_set_variable(originate_status[i].peer_channel, header->name, header->value);

                                    }

                                    switch_event_create(&event, SWITCH_EVENT_CHANNEL_ORIGINATE);

                                    switch_assert(event);

                                    switch_channel_event_set_data(originate_status[i].peer_channel, event);

                                    switch_event_fire(&event);

                              }

                        }

if (vdata) {

char *var_array[1024] = { 0 };

int var_count = 0;

if ((var_count = switch_separate_string(vdata, '|', var_array, (sizeof(var_array) / sizeof(var_array[0]))))) {

int x = 0;

for (x = 0; x < var_count; x++) {

char *inner_var_array[2] = { 0 };

int inner_var_count;

if ((inner_var_count =

                                                 switch_separate_string(var_array[x], '=',

                                                                                    inner_var_array, (sizeof(inner_var_array) / sizeof(inner_var_array[0])))) == 2) {

                                                switch_channel_set_variable(originate_status[i].peer_channel, inner_var_array[0], inner_var_array[1]);

                                          }

                                    }

                              }

                        }

if (!local_clobber) {

if (var_event) {

                                    switch_event_t *event;

                                    switch_event_header_t *header;

/* install the vars from the {} params */

for (header = var_event->headers; header; header = header->next) {

                                          switch_channel_set_variable(originate_status[i].peer_channel, header->name, header->value);

                                    }

                                    switch_event_create(&event, SWITCH_EVENT_CHANNEL_ORIGINATE);

                                    switch_assert(event);

                                    switch_channel_event_set_data(originate_status[i].peer_channel, event);

                                    switch_event_fire(&event);

                              }

                        }

The code block inside if (local_clobber) and if (!local_clobber) does exactly the same thing. May I know is it by design and how does it actually work ? I am not sure what does it mean by localClobber so if someone can spare sometime explaining, I would really appreciate it.

Thank you

Best Regards

Alex To

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