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Local variables for codefreeze

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@70253 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2007-06-20 04:36:23 +00:00
parent 1a3f2c5605
commit 2586a090a8
1 changed files with 88 additions and 2 deletions
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90
apps/app_stack.c
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@@ -42,8 +42,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/module.h"
#include "asterisk/config.h"
#include "asterisk/app.h"
#define STACKVAR "~GOSUB~STACK~"
#include "asterisk/manager.h"
static const char *app_gosub = "Gosub";
static const char *app_gosubif = "GosubIf";
@@ -83,6 +82,7 @@ struct gosub_stack_frame {
AST_LIST_ENTRY(gosub_stack_frame) entries;
/* 100 arguments is all that we support anyway, but this will handle up to 255 */
unsigned char arguments;
struct varshead varshead;
int priority;
char *context;
char extension[0];
@@ -92,6 +92,7 @@ static void gosub_release_frame(struct ast_channel *chan, struct gosub_stack_fra
{
unsigned char i;
char argname[15];
struct ast_var_t *vardata;
/* If chan is not defined, then we're calling it as part of gosub_free,
* and the channel variables will be deallocated anyway. Otherwise, we're
@@ -105,6 +106,11 @@ static void gosub_release_frame(struct ast_channel *chan, struct gosub_stack_fra
pbx_builtin_setvar_helper(chan, argname, NULL);
}
}
/* Delete local variables */
while ((vardata = AST_LIST_REMOVE_HEAD(&frame->varshead, entries)))
ast_var_delete(vardata);
ast_free(frame);
}
@@ -114,6 +120,7 @@ static struct gosub_stack_frame *gosub_allocate_frame(const char *context, const
int len_extension = strlen(extension), len_context = strlen(context);
if ((new = ast_calloc(1, sizeof(*new) + 2 + len_extension + len_context))) {
AST_LIST_HEAD_INIT_NOLOCK(&new->varshead);
strcpy(new->extension, extension);
new->context = new->extension + len_extension + 1;
strcpy(new->context, context);
@@ -314,12 +321,90 @@ static int gosubif_exec(struct ast_channel *chan, void *data)
return res;
}
static int local_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
{
struct ast_datastore *stack_store = ast_channel_datastore_find(chan, &stack_info, NULL);
AST_LIST_HEAD(, gosub_stack_frame) *oldlist;
struct gosub_stack_frame *frame;
struct ast_var_t *variables;
if (!stack_store)
return -1;
oldlist = stack_store->data;
AST_LIST_LOCK(oldlist);
frame = AST_LIST_FIRST(oldlist);
AST_LIST_TRAVERSE(&frame->varshead, variables, entries) {
if (!strcmp(data, ast_var_name(variables))) {
ast_copy_string(buf, ast_var_value(variables), len);
break;
}
}
AST_LIST_UNLOCK(oldlist);
return 0;
}
static int local_write(struct ast_channel *chan, const char *cmd, char *var, const char *value)
{
struct ast_datastore *stack_store = ast_channel_datastore_find(chan, &stack_info, NULL);
AST_LIST_HEAD(, gosub_stack_frame) *oldlist;
struct gosub_stack_frame *frame;
struct ast_var_t *variables;
if (!stack_store) {
ast_log(LOG_ERROR, "Tried to set LOCAL(%s), but we aren't within a Gosub routine\n", var);
return -1;
}
oldlist = stack_store->data;
AST_LIST_LOCK(oldlist);
frame = AST_LIST_FIRST(oldlist);
AST_LIST_TRAVERSE(&frame->varshead, variables, entries) {
if (!strcmp(var, ast_var_name(variables))) {
AST_LIST_REMOVE(&frame->varshead, variables, entries);
ast_var_delete(variables);
break;
}
}
if (ast_strlen_zero(value)) {
manager_event(EVENT_FLAG_CALL, "VarSet",
"Channel: %s\r\n"
"Variable: LOCAL(%s)\r\n"
"Value:\r\n"
"Uniqueid: %s\r\n",
chan->name, var, chan->uniqueid);
} else {
variables = ast_var_assign(var, value);
AST_LIST_INSERT_HEAD(&frame->varshead, variables, entries);
manager_event(EVENT_FLAG_CALL, "VarSet",
"Channel: %s\r\n"
"Variable: LOCAL(%s)\r\n"
"Value: %s\r\n"
"Uniqueid: %s\r\n",
chan->name, var, value, chan->uniqueid);
}
AST_LIST_UNLOCK(oldlist);
return 0;
}
static struct ast_custom_function local_function = {
.name = "LOCAL",
.synopsis = "Variables local to the gosub stack frame",
.syntax = "LOCAL(<varname>)",
.write = local_write,
.read = local_read,
};
static int unload_module(void)
{
ast_unregister_application(app_return);
ast_unregister_application(app_pop);
ast_unregister_application(app_gosubif);
ast_unregister_application(app_gosub);
ast_custom_function_unregister(&local_function);
ast_module_user_hangup_all();
@@ -332,6 +417,7 @@ static int load_module(void)
ast_register_application(app_return, return_exec, return_synopsis, return_descrip);
ast_register_application(app_gosubif, gosubif_exec, gosubif_synopsis, gosubif_descrip);
ast_register_application(app_gosub, gosub_exec, gosub_synopsis, gosub_descrip);
ast_custom_function_register(&local_function);
return 0;
}