[asterisk-commits] trunk - r7639 /trunk/pbx.c
asterisk-commits at lists.digium.com
asterisk-commits at lists.digium.com
Mon Dec 26 15:38:51 CST 2005
Author: russell
Date: Mon Dec 26 15:38:50 2005
New Revision: 7639
URL: http://svn.digium.com/view/asterisk?rev=7639&view=rev
Log:
- normalize some loops
- simplify and reduce code by keeping track of return value
- replace some simple if/then sections with conditional expressions
(issue #6065)
Modified:
trunk/pbx.c
Modified: trunk/pbx.c
URL: http://svn.digium.com/view/asterisk/trunk/pbx.c?rev=7639&r1=7638&r2=7639&view=diff
==============================================================================
--- trunk/pbx.c (original)
+++ trunk/pbx.c Mon Dec 26 15:38:50 2005
@@ -2541,12 +2541,13 @@
*/
int ast_context_remove_include(const char *context, const char *include, const char *registrar)
{
- struct ast_context *c;
-
- if (ast_lock_contexts()) return -1;
+ struct ast_context *c = NULL;
+
+ if (ast_lock_contexts())
+ return -1;
/* walk contexts and search for the right one ...*/
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
/* we found one ... */
if (!strcmp(ast_get_context_name(c), context)) {
int ret;
@@ -2609,28 +2610,25 @@
*/
int ast_context_remove_switch(const char *context, const char *sw, const char *data, const char *registrar)
{
- struct ast_context *c;
-
- if (ast_lock_contexts()) return -1;
+ struct ast_context *c = NULL;
+ int ret = -1; /* default error return */
+
+ if (ast_lock_contexts())
+ return -1;
/* walk contexts and search for the right one ...*/
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
/* we found one ... */
if (!strcmp(ast_get_context_name(c), context)) {
- int ret;
/* remove switch from this context ... */
ret = ast_context_remove_switch2(c, sw, data, registrar);
-
- ast_unlock_contexts();
-
- /* ... return results */
- return ret;
- }
- }
-
- /* we can't find the right one context */
+ break;
+ }
+ }
+
+ /* found or error */
ast_unlock_contexts();
- return -1;
+ return ret;
}
/*!
@@ -2677,26 +2675,25 @@
*/
int ast_context_remove_extension(const char *context, const char *extension, int priority, const char *registrar)
{
- struct ast_context *c;
-
- if (ast_lock_contexts()) return -1;
+ struct ast_context *c = NULL;
+ int ret = -1; /* default error return */
+
+ if (ast_lock_contexts())
+ return -1;
/* walk contexts ... */
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
/* ... search for the right one ... */
if (!strcmp(ast_get_context_name(c), context)) {
/* ... remove extension ... */
- int ret = ast_context_remove_extension2(c, extension, priority,
+ ret = ast_context_remove_extension2(c, extension, priority,
registrar);
- /* ... unlock contexts list and return */
- ast_unlock_contexts();
- return ret;
- }
- }
-
- /* we can't find the right context */
+ break;
+ }
+ }
+ /* found or error */
ast_unlock_contexts();
- return -1;
+ return ret;
}
/*!
@@ -3234,7 +3231,8 @@
static char *complete_show_dialplan_context(char *line, char *word, int pos,
int state)
{
- struct ast_context *c;
+ struct ast_context *c = NULL;
+ char *ret = NULL;
int which = 0;
int wordlen;
@@ -3251,22 +3249,21 @@
wordlen = strlen(word);
/* ... walk through all contexts ... */
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
/* ... word matches context name? yes? ... */
if (!strncasecmp(word, ast_get_context_name(c), wordlen)) {
/* ... for serve? ... */
if (++which > state) {
/* ... yes, serve this context name ... */
- char *ret = strdup(ast_get_context_name(c));
- ast_unlock_contexts();
- return ret;
+ ret = strdup(ast_get_context_name(c));
+ break;
}
}
}
/* ... unlock and return */
ast_unlock_contexts();
- return NULL;
+ return ret;
}
struct dialplan_counters {
@@ -3279,7 +3276,7 @@
static int show_dialplan_helper(int fd, char *context, char *exten, struct dialplan_counters *dpc, struct ast_include *rinclude, int includecount, char *includes[])
{
- struct ast_context *c;
+ struct ast_context *c = NULL;
int res = 0, old_total_exten = dpc->total_exten;
/* try to lock contexts */
@@ -3289,7 +3286,7 @@
}
/* walk all contexts ... */
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
/* show this context? */
if (!context ||
!strcmp(ast_get_context_name(c), context)) {
@@ -3728,7 +3725,7 @@
*/
int ast_context_add_include(const char *context, const char *include, const char *registrar)
{
- struct ast_context *c;
+ struct ast_context *c = NULL;
if (ast_lock_contexts()) {
errno = EBUSY;
@@ -3736,7 +3733,7 @@
}
/* walk contexts ... */
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
/* ... search for the right one ... */
if (!strcmp(ast_get_context_name(c), context)) {
int ret = ast_context_add_include2(c, include, registrar);
@@ -4164,7 +4161,7 @@
*/
int ast_context_add_switch(const char *context, const char *sw, const char *data, int eval, const char *registrar)
{
- struct ast_context *c;
+ struct ast_context *c = NULL;
if (ast_lock_contexts()) {
errno = EBUSY;
@@ -4172,7 +4169,7 @@
}
/* walk contexts ... */
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
/* ... search for the right one ... */
if (!strcmp(ast_get_context_name(c), context)) {
int ret = ast_context_add_switch2(c, sw, data, eval, registrar);
@@ -4276,14 +4273,14 @@
*/
int ast_context_remove_ignorepat(const char *context, const char *ignorepat, const char *registrar)
{
- struct ast_context *c;
+ struct ast_context *c = NULL;
if (ast_lock_contexts()) {
errno = EBUSY;
return -1;
}
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
if (!strcmp(ast_get_context_name(c), context)) {
int ret = ast_context_remove_ignorepat2(c, ignorepat, registrar);
ast_unlock_contexts();
@@ -4332,14 +4329,14 @@
*/
int ast_context_add_ignorepat(const char *con, const char *value, const char *registrar)
{
- struct ast_context *c;
+ struct ast_context *c = NULL;
if (ast_lock_contexts()) {
errno = EBUSY;
return -1;
}
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
if (!strcmp(ast_get_context_name(c), con)) {
int ret = ast_context_add_ignorepat2(c, value, registrar);
ast_unlock_contexts();
@@ -4409,14 +4406,14 @@
int ast_add_extension(const char *context, int replace, const char *extension, int priority, const char *label, const char *callerid,
const char *application, void *data, void (*datad)(void *), const char *registrar)
{
- struct ast_context *c;
+ struct ast_context *c = NULL;
if (ast_lock_contexts()) {
errno = EBUSY;
return -1;
}
- for (c = ast_walk_contexts(NULL); c; c = ast_walk_contexts(c)) {
+ while ( (c = ast_walk_contexts(c)) ) {
if (!strcmp(context, ast_get_context_name(c))) {
int ret = ast_add_extension2(c, replace, extension, priority, label, callerid,
application, data, datad, registrar);
@@ -6134,10 +6131,7 @@
*/
struct ast_context *ast_walk_contexts(struct ast_context *con)
{
- if (!con)
- return contexts;
- else
- return con->next;
+ return con ? con->next : contexts;
}
struct ast_exten *ast_walk_context_extensions(struct ast_context *con,
@@ -6161,10 +6155,7 @@
struct ast_exten *ast_walk_extension_priorities(struct ast_exten *exten,
struct ast_exten *priority)
{
- if (!priority)
- return exten;
- else
- return priority->peer;
+ return priority ? priority->peer : exten;
}
struct ast_include *ast_walk_context_includes(struct ast_context *con,
@@ -6187,10 +6178,10 @@
int ast_context_verify_includes(struct ast_context *con)
{
- struct ast_include *inc;
+ struct ast_include *inc = NULL;
int res = 0;
- for (inc = ast_walk_context_includes(con, NULL); inc; inc = ast_walk_context_includes(con, inc))
+ while ( (inc = ast_walk_context_includes(con, inc)) )
if (!ast_context_find(inc->rname)) {
res = -1;
ast_log(LOG_WARNING, "Context '%s' tries includes nonexistent context '%s'\n",
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