From 7c5595c073ae4d0b3e1b2e6fd67a6f76327776be Mon Sep 17 00:00:00 2001
From: zolliker <zolliker>
Date: Thu, 17 Aug 2006 15:37:32 +0000
Subject: [PATCH] added driver list function

---
 initializer.c | 57 +++++++++++++++++++++++++++++++++++++++++++--------
 initializer.h |  6 ++++--
 2 files changed, 53 insertions(+), 10 deletions(-)

diff --git a/initializer.c b/initializer.c
index 397e0d4d..813b884b 100644
--- a/initializer.c
+++ b/initializer.c
@@ -12,8 +12,9 @@ Markus Zolliker, March 2005
 
 typedef struct Item {
   struct Item *next;
-  const char *type;
-  const char *name;
+  char *type;
+  char *name;
+  char *desc;
   Initializer maker;
   int startupOnly;
 } Item;
@@ -21,15 +22,17 @@ typedef struct Item {
 static Item *list = NULL;
 static int startup = 1;
 
-void MakeInitializer(const char *type, const char *name, Initializer maker, int startupOnly) {
+void MakeInitializer(const char *type, const char *name, Initializer maker,
+                     int startupOnly, const char *desc) {
   Item *item;
   
   item = calloc(1, sizeof *item);
   assert(item);
   item->maker = maker;
   item->next = list;
-  item->type = type;
-  item->name = name;
+  item->type = strdup(type);
+  item->name = strdup(name);
+  item->desc = strdup(desc);
   item->startupOnly = startupOnly;
   list = item;
 }
@@ -84,6 +87,40 @@ static int MakeObject(SConnection *con, SicsInterp *sics,
   }
 }
 
+static int DriverList(SConnection *con, SicsInterp *sics,
+                   void *data, int argc, char *argv[]) {
+  Item *p;
+  char *name, *type;
+  
+  if (argc < 2 || strcasecmp(argv[1], "list") == 0) {
+    for (p = list; p != NULL; p = p->next) {
+      if (argc < 3) {
+        SCPrintf(con, eStatus, "%s %s %s", p->type, p->name, p->desc);
+      } else if (strcasecmp(argv[2], p->type) == 0) {
+        SCPrintf(con, eStatus, "%s %s", p->name, p->desc);
+      }
+    }
+  } else {
+    if (argc == 2) {
+      name = argv[1];
+      type = "Object";
+    } else {
+      name = argv[2];
+      type = argv[1];
+    }
+    p = list;
+    while (p != NULL && (strcasecmp(p->type, type) != 0 || strcasecmp(p->name, name) != 0)) {
+      p = p->next;
+    }
+    if (p) {
+      SCPrintf(con, eValue, "%s", p->desc);
+    } else {
+      SCPrintf(con, eValue, "notfound");
+    }
+  }
+  return 1;
+}
+
 static int RemoveObject(SConnection *con, SicsInterp *sics,
                    void *data, int argc, char *argv[]) {
   CmdInitializer cmdin;
@@ -91,7 +128,7 @@ static int RemoveObject(SConnection *con, SicsInterp *sics,
   char *className;
   
   if (argc != 2) {
-    SCPrintf(con, eError, "%s has 1 argument", argv[0]);
+    SCPrintf(con, eError, "%s needs 1 argument", argv[0]);
     return 0;
   }
     
@@ -124,16 +161,20 @@ static void KillInitializers(void *data) {
   item = list;
   while (item) {
     next = item->next;
+    if (item->name) free(item->name);
+    if (item->type) free(item->type);
+    if (item->desc) free(item->desc);
     free(item);
     item = next;
   }
   list = NULL;
 }
 
-void MakeDriver(const char *driver, CmdInitializer maker, int startupOnly) {
+void MakeDriver(const char *driver, CmdInitializer maker, int startupOnly, const char *desc) {
   if (! FindCommand(pServ->pSics, "MakeObject")) {
     AddCommandWithFlag(pServ->pSics, "MakeObject", MakeObject, KillInitializers, NULL, 0);
     AddCommandWithFlag(pServ->pSics, "RemoveObject", RemoveObject, NULL, NULL, 0);
+    AddCommandWithFlag(pServ->pSics, "DriverList", DriverList, NULL, NULL, 0);
   }
-  MakeInitializer("Object", driver, (Initializer)maker, startupOnly);
+  MakeInitializer("Object", driver, (Initializer)maker, startupOnly, desc);
 }
diff --git a/initializer.h b/initializer.h
index dcd3820c..593f0d24 100644
--- a/initializer.h
+++ b/initializer.h
@@ -12,7 +12,8 @@ Markus Zolliker, March 2005
 
 typedef void (*Initializer)(void);
 
-void MakeInitializer(const char *type, const char *name, Initializer maker, int startupOnly);
+void MakeInitializer(const char *type, const char *name, Initializer maker, int startupOnly,
+                     const char *desc);
 /*
    install an initializer
 
@@ -54,7 +55,8 @@ typedef int (*CmdInitializer) (SConnection *pCon, int argc, char *argv[], int dy
    - dynamic: the initializer was called _after_ startup
 */
 
-void MakeDriver(const char *driver, CmdInitializer maker, int startupOnly);
+void MakeDriver(const char *driver, CmdInitializer maker, int startupOnly,
+                const char *desc);
 /*    
    Install a driver of type "Object" with the initializer function maker.
    - startupOnly: the driver creation should only be possible at startup