The R13B03 release.OTP_R13B03

1 files changed, 94 insertions, 0 deletions

diff --git a/lib/erl_interface/src/registry/reg_get.c b/lib/erl_interface/src/registry/reg_get.c
new file mode 100644
index 0000000000..d1909b3fed
--- /dev/null
+++ b/lib/erl_interface/src/registry/reg_get.c
@@ -0,0 +1,94 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 1998-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ *
+
+ */
+#ifdef VXWORKS
+#include <vxWorks.h>
+#endif
+
+#include <stdarg.h>
+#include "reg.h"
+
+/* this is the general "get" function. Values are copied into a buffer
+ * provided by the caller, and the return value indicates success or
+ * failure. This function can get all types except directorys. The user
+ * must specify the type of data he is expecting, or 0 if he doesn't
+ * care. On success, the data type is returned. If the requested data
+ * type does not match the data found, EI_TYPE is returned. 
+ */
+int ei_reg_getval(ei_reg *reg, const char *key, int flags, ...)
+{
+  ei_hash *tab;
+  ei_reg_obj *obj=NULL;
+  va_list ap;
+  int rval;
+  int objtype;
+  
+  if (!key || !reg) return -1; /* return EI_BADARG; */
+  tab = reg->tab;
+  if (!(obj=ei_hash_lookup(tab,key))) return -1; /* return EI_NOTFOUND; */
+  if (obj->attr & EI_DELET) return -1; /* return EI_NOTFOUND; */
+
+  /* if type was specified then it must match object */
+  objtype = ei_reg_typeof(obj);
+  if (flags && (flags != objtype)) return -1; /* return EI_TYPE; */
+
+  va_start(ap,flags);
+
+  switch ((rval = objtype)) {
+  case EI_INT: {
+    long *ip;
+
+    if (!(ip = va_arg(ap,long*))) rval = -1; /* EI_BADARG; */
+    else *ip = obj->val.i;
+    break;
+  }
+  case EI_FLT: {
+    double *fp;
+
+    if (!(fp = va_arg(ap,double*))) rval = -1; /*  EI_BADARG; */
+    else *fp = obj->val.f;
+    break;
+  }
+  case EI_STR: {
+    char **sp;
+
+    if (!(sp = va_arg(ap,char**))) rval = -1; /* EI_BADARG; */
+    else *sp = obj->val.s;
+    break;
+  }
+  case EI_BIN: {
+    void **pp;
+    int *size;
+
+    if (!(pp = va_arg(ap,void**))) rval = -1; /* EI_BADARG; */
+    else *pp = obj->val.p;
+    if ((size=va_arg(ap,int*))) *size=obj->size;
+    break;
+  }
+  default:
+    /* can't (should never) happen */
+    rval = -1;
+    /* rval = EI_UNKNOWN; */
+  }
+
+  /* clean up & return */
+  va_end(ap);
+  return rval;
+}