graph_list: Implement better iterator functions.

diff --git a/action_list_graphs.c b/action_list_graphs.c
index 14a13bb..16d5cc4 100644 (file)
--- a/action_list_graphs.c
+++ b/action_list_graphs.c
@@ -43,33 +43,29 @@ static int print_graph_json (const graph_list_t *gl, void *user_data) /* {{{ */
   return (0);
 } /* }}} int print_graph_json */
 
-static int print_graph_html (const graph_list_t *gl,
-    void __attribute__((unused)) *user_data)
+static int print_graph_inst_html (__attribute__((unused)) graph_config_t *cfg, /* {{{ */
+    graph_instance_t *inst,
+    __attribute__((unused)) void *user_data)
 {
-  if (gl == NULL)
-    return (EINVAL);
+  char buffer[1024];
 
-  printf ("<li>");
+  memset (buffer, 0, sizeof (buffer));
+  gl_instance_get_ident (inst, buffer, sizeof (buffer));
 
-  printf ("<a href=\"%s?action=graph;", getenv ("SCRIPT_NAME"));
-  printf ("host=%s;plugin=%s;", gl->host, gl->plugin);
-  if (gl->plugin_instance != NULL)
-    printf ("plugin_instance=%s;", gl->plugin_instance);
-  printf ("type=%s;", gl->type);
-  if (gl->type_instance != NULL)
-    printf ("type_instance=%s;", gl->type_instance);
-  printf ("\">");
+  printf ("<li>%s</li>\n", buffer);
 
-  printf ("%s/%s", gl->host, gl->plugin);
-  if (gl->plugin_instance != NULL)
-    printf ("-%s", gl->plugin_instance);
-  printf ("/%s", gl->type);
-  if (gl->type_instance != NULL)
-    printf ("-%s", gl->type_instance);
-  printf ("</a></li>\n");
+  return (0);
+} /* }}} int print_graph_inst_html */
+
+static int print_graph_html (graph_config_t *cfg, /* {{{ */
+    __attribute__((unused)) void *user_data)
+{
+  printf ("<li>%p\n<ul>\n", (void *) cfg);
+  gl_graph_instance_get_all (cfg, print_graph_inst_html, /* user_data = */ NULL);
+  printf ("</ul>\n");
 
   return (0);
-}
+} /* }}} int print_graph_html */
 
 static int list_graphs_json (void) /* {{{ */
 {
@@ -89,7 +85,7 @@ static int list_graphs_html (void) /* {{{ */
   printf ("Content-Type: text/html\n\n");
 
   printf ("<ul>\n");
-  gl_foreach (print_graph_html, /* user_data = */ NULL);
+  gl_graph_get_all (print_graph_html, /* user_data = */ NULL);
   printf ("</ul>\n");
 
   return (0);

diff --git a/graph_list.c b/graph_list.c
index 0e4428d..e998785 100644 (file)
--- a/graph_list.c
+++ b/graph_list.c
@@ -31,8 +31,6 @@ struct graph_ident_s /* {{{ */
   char *type_instance;
 }; /* }}} struct graph_ident_s */
 
-struct graph_instance_s;
-typedef struct graph_instance_s graph_instance_t;
 struct graph_instance_s /* {{{ */
 {
   graph_ident_t select;
@@ -43,8 +41,6 @@ struct graph_instance_s /* {{{ */
   graph_instance_t *next;
 }; /* }}} struct graph_instance_s */
 
-struct graph_config_s;
-typedef struct graph_config_s graph_config_t;
 struct graph_config_s /* {{{ */
 {
   graph_ident_t select;
@@ -69,6 +65,8 @@ static time_t gl_last_update = 0;
 /*
  * Private functions
  */
+/* FIXME: These "print_*" functions are used for debugging. They should be
+ * removed at some point. */
 static int print_files (const graph_instance_t *inst) /* {{{ */
 {
   size_t i;
@@ -120,7 +118,6 @@ static int print_graphs (void) /* {{{ */
   return (0);
 } /* }}} int print_graphs */
 
-
 /* "Safe" version of strcmp(3): Either or both pointers may be NULL. */
 static int strcmp_s (const char *s1, const char *s2) /* {{{ */
 {
@@ -418,6 +415,7 @@ static int FIXME_graph_create_from_file (const graph_ident_t *file) /* {{{ */
   return (0);
 } /* }}} int FIXME_graph_create_from_file */
 
+/* FIXME: Actually read the config file here. */
 static int read_graph_config (void) /* {{{ */
 {
   if (graph_config_head != NULL)
@@ -676,13 +674,92 @@ static int callback_host (const char *host, void *user_data) /* {{{ */
 /*
  * Global functions
  */
+int gl_instance_get_ident (graph_instance_t *inst, /* {{{ */
+    char *buffer, size_t buffer_size)
+{
+  if ((inst == NULL) || (buffer == NULL) || (buffer_size < 1))
+    return (EINVAL);
+
+  snprintf (buffer, buffer_size, "%s/%s-%s/%s-%s",
+      inst->select.host,
+      inst->select.plugin, inst->select.plugin_instance,
+      inst->select.type, inst->select.type_instance);
+  buffer[buffer_size - 1] = 0;
+
+  return (0);
+} /* }}} int gl_instance_get_ident */
+
+int gl_graph_get_all (gl_cfg_callback callback, /* {{{ */
+    void *user_data)
+{
+  graph_config_t *cfg;
+
+  if (callback == NULL)
+    return (EINVAL);
+
+  for (cfg = graph_config_head; cfg != NULL; cfg = cfg->next)
+  {
+    int status;
+
+    status = (*callback) (cfg, user_data);
+    if (status != 0)
+      return (status);
+  }
+
+  return (0);
+} /* }}} int gl_graph_get_all */
+
+int gl_graph_instance_get_all (graph_config_t *cfg,
+    gl_inst_callback callback, void *user_data)
+{
+  graph_instance_t *inst;
+
+  if ((cfg == NULL) || (callback == NULL))
+    return (EINVAL);
+
+  for (inst = cfg->instances; inst != NULL; inst = inst->next)
+  {
+    int status;
+
+    status = (*callback) (cfg, inst, user_data);
+    if (status != 0)
+      return (status);
+  }
+
+  return (0);
+} /* }}} int gl_graph_instance_get_all */
+
+int gl_instance_get_all (gl_inst_callback callback, /* {{{ */
+    void *user_data)
+{
+  graph_config_t *cfg;
+
+  for (cfg = graph_config_head; cfg != NULL; cfg = cfg->next)
+  {
+    graph_instance_t *inst;
+
+    for (inst = cfg->instances; inst != NULL; inst = inst->next)
+    {
+      int status;
+
+      status = (*callback) (cfg, inst, user_data);
+      if (status != 0)
+        return (status);
+    }
+  }
+
+  return (0);
+} /* }}} int gl_instance_get_all */
+
 int gl_update (void) /* {{{ */
 {
   time_t now;
   graph_ident_t gl;
   int status;
 
+  /*
   printf ("Content-Type: text/plain\n\n");
+  */
 
   read_graph_config ();
 
@@ -702,7 +779,7 @@ int gl_update (void) /* {{{ */
 
   status = foreach_host (callback_host, &gl);
 
-  print_graphs ();
+  /* print_graphs (); */
 
   if (graph_list_length > 1)
     qsort (graph_list, graph_list_length, sizeof (*graph_list), gl_compare);

diff --git a/graph_list.h b/graph_list.h
index 3669e02..605571e 100644 (file)
--- a/graph_list.h
+++ b/graph_list.h
@@ -4,6 +4,39 @@
 struct graph_ident_s;
 typedef struct graph_ident_s graph_ident_t;
 
+struct graph_instance_s;
+typedef struct graph_instance_s graph_instance_t;
+
+struct graph_config_s;
+typedef struct graph_config_s graph_config_t;
+
+/*
+ * Callback types
+ */
+typedef int (*gl_cfg_callback) (graph_config_t *cfg,
+    void *user_data);
+
+typedef int (*gl_inst_callback) (graph_config_t *cfg,
+    graph_instance_t *inst, void *user_data);
+
+/*
+ * Functions
+ */
+int gl_graph_get_all (gl_cfg_callback callback,
+    void *user_data);
+
+int gl_graph_instance_get_all (graph_config_t *cfg,
+    gl_inst_callback callback, void *user_data);
+
+int gl_instance_get_all (gl_inst_callback callback,
+    void *user_data);
+
+int gl_instance_get_ident (graph_instance_t *inst,
+    char *buffer, size_t buffer_size);
+
+
+
+
 struct graph_list_s
 {
   char *host;
@@ -14,7 +47,8 @@ struct graph_list_s
 };
 typedef struct graph_list_s graph_list_t;
 
-typedef int (*gl_callback) (const graph_list_t *, void *);
+typedef int (*gl_callback) (
+    const graph_list_t *, void *user_data);
 
 int gl_update (void);
 int gl_foreach (gl_callback callback, void *user_data);