Add a "special" return value: abort.

[apps/pfixtools.git] / postlicyd / filter.h

diff --git a/postlicyd/filter.h b/postlicyd/filter.h
index a08ec45..a113727 100644 (file)
--- a/postlicyd/filter.h
+++ b/postlicyd/filter.h
@@ -38,44 +38,66 @@
 
 #include "common.h"
 #include "filter_tokens.h"
+#include "hook_tokens.h"
+#include "param_tokens.h"
 #include "query.h"
 #include "array.h"
 
 typedef filter_token filter_type_t;
+typedef hook_token   filter_result_t;
+typedef param_token  filter_param_id_t;
 
 typedef struct filter_hook_t {
-    char *name;
+    filter_result_t type;
     char *value;
+
+    bool postfix;
+    int filter_id;
 } filter_hook_t;
 ARRAY(filter_hook_t)
 
-typedef struct filter_params_t {
-    char *name;
+typedef struct filter_param_t {
+    filter_param_id_t type;
     char *value;
-} filter_params_t;
-ARRAY(filter_params_t)
+} filter_param_t;
+ARRAY(filter_param_t)
 
 typedef struct filter_t {
     char *name;
     filter_type_t type;
 
     A(filter_hook_t)   hooks;
-    A(filter_params_t) params;
     void *data;
+
+    A(filter_param_t) params;
 } filter_t;
 ARRAY(filter_t)
 
-#define FILTER_INIT { NULL, FTK_UNKNOWN, ARRAY_INIT, ARRAY_INIT, NULL }
+#define FILTER_INIT { NULL, FTK_UNKNOWN, ARRAY_INIT, NULL, ARRAY_INIT }
+#define CHECK_FILTER(Filter)                                                   \
+    assert(Filter != FTK_UNKNOWN && Filter != FTK_count                        \
+           && "Unknown filter type")
+#define CHECK_HOOK(Hook)                                                       \
+    assert(Hook != HTK_UNKNOWN && Hook != HTK_count                            \
+           && "Unknown hook")
+#define CHECK_PARAM(Param)                                                     \
+    assert(Param != ATK_UNKNOWN && Param != ATK_count                          \
+           && "Unknown param")
 
-typedef const char *filter_result_t;
 typedef filter_result_t (*filter_runner_t)(const filter_t *filter,
                                            const query_t *query);
 typedef bool (*filter_constructor_t)(filter_t *filter);
 typedef void (*filter_destructor_t)(filter_t *filter);
 
 __attribute__((nonnull(1,4)))
-void filter_register(const char *type, filter_constructor_t constructor,
-                     filter_destructor_t destructor, filter_runner_t runner);
+filter_type_t filter_register(const char *type, filter_constructor_t constructor,
+                              filter_destructor_t destructor, filter_runner_t runner);
+
+__attribute__((nonnull(2)))
+filter_result_t filter_hook_register(filter_type_t filter, const char *name);
+
+__attribute__((nonnull(2)))
+filter_param_id_t filter_param_register(filter_type_t filter, const char *name);
 
 __attribute__((nonnull(1)))
 static inline void filter_init(filter_t *filter)
@@ -101,17 +123,39 @@ bool filter_add_hook(filter_t *filter, const char *name, ssize_t name_len,
 __attribute__((nonnull(1)))
 bool filter_build(filter_t *filter);
 
+__attribute__((nonnull(1,2)))
+static inline int filter_find_with_name(A(filter_t) *array, const char *name)
+{
+    int start = 0;
+    int end   = array->len;
+
+    while (start < end) {
+        int mid = (start + end) / 2;
+        int cmp = strcmp(name, array_elt(*array, mid).name);
+
+        if (cmp == 0) {
+            return mid;
+        } else if (cmp < 0) {
+            end = mid;
+        } else {
+            start = mid + 1;
+        }
+    }
+    return -1;
+}
+
+__attribute__((nonnull(1,2)))
+bool filter_update_references(filter_t *filter, A(filter_t) *array);
+
 __attribute__((nonnull(1)))
 static inline void filter_hook_wipe(filter_hook_t *hook)
 {
-    p_delete(&hook->name);
     p_delete(&hook->value);
 }
 
 __attribute__((nonnull(1)))
-static inline void filter_params_wipe(filter_params_t *param)
+static inline void filter_params_wipe(filter_param_t *param)
 {
-    p_delete(&param->name);
     p_delete(&param->value);
 }
 
@@ -119,7 +163,7 @@ __attribute__((nonnull(1)))
 void filter_wipe(filter_t *filter);
 
 __attribute__((nonnull(1,2)))
-filter_result_t filter_run(const filter_t *filter, const query_t *query);
+const filter_hook_t *filter_run(const filter_t *filter, const query_t *query);
 
 
 #endif