/* products derived from this software without specific prior written */
/* permission. */
/* */
-/* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND */
-/* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE */
-/* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR */
-/* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS */
-/* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR */
-/* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF */
-/* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS */
-/* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN */
-/* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) */
-/* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF */
-/* THE POSSIBILITY OF SUCH DAMAGE. */
+/* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND ANY EXPRESS */
+/* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */
+/* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
+/* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY */
+/* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL */
+/* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS */
+/* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) */
+/* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, */
+/* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN */
+/* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
+/* POSSIBILITY OF SUCH DAMAGE. */
+/* */
+/* Copyright (c) 2006-2008 the Authors */
+/* see AUTHORS and source files for details */
/******************************************************************************/
/*
static const filter_hook_t default_hook = {
.type = 0,
.value = (char*)"DUNNO",
+ .counter = -1,
+ .cost = 0,
.postfix = true,
.async = false,
.filter_id = 0
static const filter_hook_t async_hook = {
.type = 0,
.value = NULL,
+ .counter = -1,
+ .cost = 0,
.postfix = false,
.async = true,
.filter_id = 0
};
+uint32_t filter_running = 0;
+
filter_type_t filter_register(const char *type, filter_constructor_t constructor,
filter_destructor_t destructor, filter_runner_t runner,
filter_context_constructor_t context_constructor,
filter_context_t *context)
{
debug("running filter %s (%s)", filter->name, ftokens[filter->type]);
+ ++filter_running;
filter_result_t res = runners[filter->type](filter, query, context);
if (res == HTK_ASYNC) {
context->current_filter = filter;
} else {
+ --filter_running;
context->current_filter = NULL;
}
const char *value, int value_len)
{
filter_hook_t hook;
+ hook.filter_id = -1;
hook.type = hook_tokenize(name, name_len);
if (hook.type == HTK_UNKNOWN) {
err("unknown hook type %.*s", name_len, name);
return false;
}
hook.async = false;
+
+ /* Value format is (counter:id:incr)?(postfix:reply|filter_name)
+ */
+ hook.value = NULL;
+ if (strncmp(value, "counter:", 8) == 0) {
+ char *end = NULL;
+ value += 8;
+ hook.counter = strtol(value, &end, 10);
+ if (end == value || *end != ':') {
+ err("hook %s, cannot read counter id", htokens[hook.type]);
+ return false;
+ } else if (hook.counter < 0 || hook.counter >= MAX_COUNTERS) {
+ err("hook %s, invalid counter id %d", htokens[hook.type], hook.counter);
+ return false;
+ }
+ value = end + 1;
+ hook.cost = strtol(value, &end, 10);
+ if (end == value || *end != ':') {
+ err("hook %s, cannot read counter increment", htokens[hook.type]);
+ return false;
+ } else if (hook.cost < 0) {
+ err("hook %s, invalid counter increment value %d", htokens[hook.type],
+ hook.cost);
+ return false;
+ }
+ value = end + 1;
+ } else {
+ hook.counter = -1;
+ hook.cost = 0;
+ }
hook.postfix = (strncmp(value, "postfix:", 8) == 0);
+ if (hook.postfix && !query_format_check(value + 8)) {
+ err("invalid formatted text \"%s\"", value + 8);
+ return false;
+ }
hook.value = m_strdup(hook.postfix ? value + 8 : value);
- hook.filter_id = -1;
array_add(filter->hooks, hook);
return true;
}
}
}
+void filter_context_clean(filter_context_t *context)
+{
+ p_clear(&context->counters, 1);
+ context->instance[0] = '\0';
+}
+
void filter_post_async_result(filter_context_t *context, filter_result_t result)
{
const filter_t *filter = context->current_filter;
if (result == HTK_ASYNC) {
return;
}
+ --filter_running;
hook = filter_hook_for_result(filter, result);
async_handler(context, hook);
}