The first bunch of library files

These are the relatively well-tested files. They allow you to parse a
configuration file, and to build an internal abstract syntax tree.


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@91 7894878c-1315-0410-8ee3-d5d059ff63e0

1 files changed, 75 insertions, 0 deletions

diff --git a/lib/general.c b/lib/general.c
new file mode 100644
index 00000000..2f8700cf
--- /dev/null
+++ b/lib/general.c
@@ -0,0 +1,75 @@
+/*
+    general.c - Part of libsensors, a Linux library for reading sensor data.
+    Copyright (c) 1998  Frodo Looijaard <frodol@dds.nl>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "general.h"
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+
+#define A_BUNCH 16
+
+void sensors_malloc_array(void **list, int *num_el, int *max_el, int el_size)
+{
+  *list = malloc(el_size*A_BUNCH);
+  if (! *list)
+    sensors_fatal_error("sensors_malloc_array","Allocating new elements");
+  *max_el = A_BUNCH;
+  *num_el = 0;
+}
+
+void sensors_free_array(void **list, int *num_el, int *max_el)
+{
+  free(*list);
+  *list = NULL;
+  *num_el = 0;
+  *max_el = 0;
+}
+
+void sensors_add_array_el(const void *el, void **list, int *num_el,
+                          int *max_el, int el_size)
+{
+  int new_max_el;
+  if (*num_el + 1 > *max_el) {
+    new_max_el = *max_el + A_BUNCH;
+    *list = realloc(*list,new_max_el * el_size);
+    if (! *list)
+      sensors_fatal_error("sensors_add_array_el","Allocating new elements");
+    *max_el = new_max_el;
+  }
+  memcpy(((char *) *list) + *num_el * el_size, el, el_size);
+  (*num_el) ++;
+}
+
+void sensors_add_array_els(const void *els, int nr_els, void **list, 
+                           int *num_el, int *max_el, int el_size)
+{
+  int new_max_el;
+  if (*num_el + nr_els > *max_el) {
+    new_max_el = (*max_el + nr_els + A_BUNCH);
+    new_max_el -= new_max_el % A_BUNCH;
+    *list = realloc(*list,new_max_el * el_size);
+    if (! *list)
+      sensors_fatal_error("sensors_add_array_els","Allocating new elements");
+    *max_el = new_max_el;
+  }
+  memcpy(((char *)*list) + *num_el * el_size, els, el_size * nr_els);
+  *num_el += nr_els;
+}