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Const-ify the world (or at least a good part of it)

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This patch adds 'const' tags to a number of Asterisk APIs where they are appropriate (where the API already demanded that the function argument not be modified, but the compiler was not informed of that fact). The list includes:

- CLI command handlers
- CLI command handler arguments
- AGI command handlers
- AGI command handler arguments
- Dialplan application handler arguments
- Speech engine API function arguments

In addition, various file-scope and function-scope constant arrays got 'const' and/or 'static' qualifiers where they were missing.

Review: https://reviewboard.asterisk.org/r/251/



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@196072 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2009-05-21 21:13:09 +00:00
parent 88bda581ec
commit e6b2e9a750
145 changed files with 802 additions and 806 deletions
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14
apps/app_stack.c
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@@ -266,7 +266,7 @@ static void gosub_free(void *data)
ast_free(oldlist);
}
static int pop_exec(struct ast_channel *chan, void *data)
static int pop_exec(struct ast_channel *chan, const char *data)
{
struct ast_datastore *stack_store = ast_channel_datastore_find(chan, &stack_info, NULL);
struct gosub_stack_frame *oldframe;
@@ -290,12 +290,12 @@ static int pop_exec(struct ast_channel *chan, void *data)
return 0;
}
static int return_exec(struct ast_channel *chan, void *data)
static int return_exec(struct ast_channel *chan, const char *data)
{
struct ast_datastore *stack_store = ast_channel_datastore_find(chan, &stack_info, NULL);
struct gosub_stack_frame *oldframe;
AST_LIST_HEAD(, gosub_stack_frame) *oldlist;
char *retval = data;
const char *retval = data;
if (!stack_store) {
ast_log(LOG_ERROR, "Return without Gosub: stack is unallocated\n");
@@ -320,7 +320,7 @@ static int return_exec(struct ast_channel *chan, void *data)
return 0;
}
static int gosub_exec(struct ast_channel *chan, void *data)
static int gosub_exec(struct ast_channel *chan, const char *data)
{
struct ast_datastore *stack_store = ast_channel_datastore_find(chan, &stack_info, NULL);
AST_LIST_HEAD(, gosub_stack_frame) *oldlist;
@@ -410,7 +410,7 @@ static int gosub_exec(struct ast_channel *chan, void *data)
return 0;
}
static int gosubif_exec(struct ast_channel *chan, void *data)
static int gosubif_exec(struct ast_channel *chan, const char *data)
{
char *args;
int res=0;
@@ -537,7 +537,7 @@ static struct ast_custom_function peek_function = {
.read = peek_read,
};
static int handle_gosub(struct ast_channel *chan, AGI *agi, int argc, char **argv)
static int handle_gosub(struct ast_channel *chan, AGI *agi, int argc, const char * const *argv)
{
int old_priority, priority;
char old_context[AST_MAX_CONTEXT], old_extension[AST_MAX_EXTENSION];
@@ -627,7 +627,7 @@ static int handle_gosub(struct ast_channel *chan, AGI *agi, int argc, char **arg
return RESULT_SUCCESS;
}
static char usage_gosub[] =
static const char usage_gosub[] =
" Usage: GOSUB <context> <extension> <priority> [<optional-argument>]\n"
" Cause the channel to execute the specified dialplan subroutine, returning\n"
" to the dialplan with execution of a Return()\n";