chanvars.c File Reference

Channel Variables. More...

#include "asterisk.h"
#include "asterisk/chanvars.h"
#include "asterisk/strings.h"
#include "asterisk/utils.h"

Include dependency graph for chanvars.c:

Go to the source code of this file.

Functions
struct ast_var_t *	_ast_var_assign (const char *name, const char *value, const char *file, int lineno, const char *function)
void	ast_var_delete (struct ast_var_t *var)
char *	ast_var_find (const struct varshead *head, const char *name)
const char *	ast_var_full_name (const struct ast_var_t *var)
struct varshead *	ast_var_list_clone (struct varshead *head)
struct varshead *	ast_var_list_create (void)
void	ast_var_list_destroy (struct varshead *head)
const char *	ast_var_name (const struct ast_var_t *var)
const char *	ast_var_value (const struct ast_var_t *var)

Detailed Description

Channel Variables.

Author

Mark Spencer marks.nosp@m.ter@.nosp@m.digiu.nosp@m.m.co.nosp@m.m

Definition in file chanvars.c.

Function Documentation

_ast_var_assign()

struct ast_var_t * _ast_var_assign	(	const char *	name,
		const char *	value,
		const char *	file,
		int	lineno,
		const char *	function
	)

Definition at line 36 of file chanvars.c.

{
    struct ast_var_t *var;
    int name_len = strlen(name) + 1;
    int value_len = strlen(value) + 1;
 
    var = __ast_calloc(sizeof(*var) + name_len + value_len, sizeof(char),
        file, lineno, function);
    if (!var) {
        return NULL;
    }
 
    ast_copy_string(var->name, name, name_len);
    var->value = var->name + name_len;
    ast_copy_string(var->value, value, value_len);
 
    return var;
}

References __ast_calloc(), ast_copy_string(), make_ari_stubs::file, name, NULL, value, and var.

ast_var_delete()

void ast_var_delete

(

struct ast_var_t *

var

)

Definition at line 55 of file chanvars.c.

{
    ast_free(var);
}

References ast_free, free(), and var.

Referenced by acf_iaxvar_write(), ast_cdr_reset(), ast_channel_destructor(), ast_dummy_channel_destructor(), ast_var_list_destroy(), cdr_object_dtor(), chan_cleanup(), do_say(), dundi_lookup_local(), free_variables(), gosub_release_frame(), loopback_subst(), pbx_builtin_clear_globals(), pbx_builtin_setvar_helper(), phoneprov_callback(), profile_destructor(), set_variable(), shared_variable_free(), shared_write(), and varshead_dtor().

ast_var_find()

char * ast_var_find	(	const struct varshead *	head,
		const char *	name
	)

Definition at line 85 of file chanvars.c.

{
    struct ast_var_t *var;
 
    AST_LIST_TRAVERSE(head, var, entries) {
        if (!strcmp(name, var->name)) {
            return var->value;
        }
    }
    return NULL;
}

References AST_LIST_TRAVERSE, ast_var_t::entries, name, NULL, and var.

Referenced by add_user_extension(), ast_phoneprov_add_extension(), build_extension(), load_users(), phoneprov_callback(), phoneprov_destroy(), and users_apply_handler().

ast_var_full_name()

const char * ast_var_full_name

(

const struct ast_var_t *

var

)

Definition at line 75 of file chanvars.c.

{
    return (var ? var->name : NULL);
}

References NULL, and var.

Referenced by ast_channel_inherit_variables(), ast_unreal_call_setup(), and inherit_channel_vars_from_id().

ast_var_list_clone()

struct varshead * ast_var_list_clone

(

struct varshead *

head

)

Definition at line 124 of file chanvars.c.

{
    struct varshead *clone;
    struct ast_var_t *var, *newvar;
 
    if (!head) {
        return NULL;
    }
 
    clone = ast_var_list_create();
    if (!clone) {
        return NULL;
    }
 
    AST_VAR_LIST_TRAVERSE(head, var) {
        newvar = ast_var_assign(var->name, var->value);
        if (!newvar) {
            ast_var_list_destroy(clone);
            return NULL;
        }
        AST_VAR_LIST_INSERT_TAIL(clone, newvar);
    }
 
    return clone;
}

References ast_var_assign, ast_var_list_create(), ast_var_list_destroy(), AST_VAR_LIST_INSERT_TAIL(), AST_VAR_LIST_TRAVERSE, NULL, and var.

Referenced by build_extension().

ast_var_list_create()

struct varshead * ast_var_list_create

(

void

)

Definition at line 97 of file chanvars.c.

{
    struct varshead *head;
 
    head = ast_calloc(1, sizeof(*head));
    if (!head) {
        return NULL;
    }
    AST_LIST_HEAD_INIT_NOLOCK(head);
    return head;
}

References ast_calloc, AST_LIST_HEAD_INIT_NOLOCK, and NULL.

Referenced by ast_var_list_clone(), build_profile(), geoloc_eprofile_resolve_varlist(), get_defaults(), handle_aor(), handle_registrations(), load_users(), and phoneprov_alloc().

ast_var_list_destroy()

void ast_var_list_destroy

(

struct varshead *

head

)

Definition at line 109 of file chanvars.c.

{
    struct ast_var_t *var;
 
    if (!head) {
        return;
    }
 
    while ((var = AST_LIST_REMOVE_HEAD(head, entries))) {
        ast_var_delete(var);
    }
 
    ast_free(head);
}

References ast_free, AST_LIST_REMOVE_HEAD, ast_var_delete(), ast_var_t::entries, and var.

Referenced by ast_var_list_clone(), delete_extension(), geoloc_eprofile_resolve_varlist(), get_defaults(), handle_aor(), handle_registrations(), load_users(), and phoneprov_destroy().

ast_var_name()

const char * ast_var_name

(

const struct ast_var_t *

var

)

Definition at line 60 of file chanvars.c.

{
    const char *name;
 
    if (var == NULL || (name = var->name) == NULL)
        return NULL;
    /* Return the name without the initial underscores */
    if (name[0] == '_') {
        name++;
        if (name[0] == '_')
            name++;
    }
    return name;
}

References name, NULL, and var.

Referenced by ast_cdr_serialize_variables(), ast_channel_get_vars(), ast_str_retrieve_variable(), cdr_format_var_internal(), cdr_object_create_public_records(), cdr_object_format_var_internal(), clearvar_prefix(), copy_variables(), frame_set_var(), generate_status(), get_key(), gosub_release_frame(), handle_show_chanvar(), handle_show_globals(), handle_showchan(), iax2_call(), iax2_dup_variable_datastore(), local_read(), pbx_builtin_getvar_helper(), pbx_builtin_serialize_variables(), pbx_builtin_setvar_helper(), peek_read(), phoneprov_callback(), set_variable(), shared_read(), and shared_write().

ast_var_value()

const char * ast_var_value

(

const struct ast_var_t *

var

)

Definition at line 80 of file chanvars.c.

{
    return (var ? var->value : NULL);
}

References NULL, and var.

Referenced by ast_cdr_serialize_variables(), ast_channel_get_vars(), ast_channel_inherit_variables(), ast_str_retrieve_variable(), ast_unreal_call_setup(), cdr_format_var_internal(), cdr_object_create_public_records(), cdr_object_format_var_internal(), copy_variables(), generate_status(), handle_show_chanvar(), handle_show_globals(), handle_showchan(), iax2_call(), iax2_dup_variable_datastore(), inherit_channel_vars_from_id(), pbx_builtin_getvar_helper(), pbx_builtin_serialize_variables(), pbx_builtin_setvar_helper(), peek_read(), and shared_read().