buffer: Provide buffer_destroy

[secnet.git] / util.c

diff --git a/util.c b/util.c
index 3ae5ff4612447e4388a31e2222ac2340c6327cbb..0215f257620b29955da29135aa332cf044bcf944 100644 (file)
--- a/util.c
+++ b/util.c
@@ -53,10 +53,10 @@ uint32_t current_phase=0;
 struct phase_hook {
     hook_fn *fn;
     void *state;
-    struct phase_hook *next;
+    LIST_ENTRY(phase_hook) entry;
 };
 
-static struct phase_hook *hooks[NR_PHASES]={NULL,};
+static LIST_HEAD(, phase_hook) hooks[NR_PHASES];
 
 char *safe_strdup(const char *s, const char *message)
 {
@@ -211,15 +211,22 @@ void enter_phase(uint32_t new_phase)
 {
     struct phase_hook *i;
 
-    if (hooks[new_phase])
+    if (!LIST_EMPTY(&hooks[new_phase]))
        Message(M_DEBUG_PHASE,"Running hooks for %s...\n", phases[new_phase]);
     current_phase=new_phase;
 
-    for (i=hooks[new_phase]; i; i=i->next)
+    LIST_FOREACH(i, &hooks[new_phase], entry)
        i->fn(i->state, new_phase);
     Message(M_DEBUG_PHASE,"Now in %s\n",phases[new_phase]);
 }
 
+void phase_hooks_init(void)
+{
+    int i;
+    for (i=0; i<NR_PHASES; i++)
+       LIST_INIT(&hooks[i]);
+}
+
 bool_t add_hook(uint32_t phase, hook_fn *fn, void *state)
 {
     struct phase_hook *h;
@@ -227,8 +234,7 @@ bool_t add_hook(uint32_t phase, hook_fn *fn, void *state)
     h=safe_malloc(sizeof(*h),"add_hook");
     h->fn=fn;
     h->state=state;
-    h->next=hooks[phase];
-    hooks[phase]=h;
+    LIST_INSERT_HEAD(&hooks[phase],h,entry);
     return True;
 }
 
@@ -285,6 +291,14 @@ void buffer_init(struct buffer_if *buffer, int32_t max_start_pad)
     buffer->size=0;
 }
 
+void buffer_destroy(struct buffer_if *buf)
+{
+    BUF_ASSERT_FREE(buf);
+    free(buf->base);
+    buf->start=buf->base=0;
+    buf->size=buf->alloclen=0;
+}
+
 void *buf_append(struct buffer_if *buf, int32_t amount) {
     void *p;
     assert(amount <= buf_remaining_space(buf));