From 8f5f490eafa86470c6ab1285d13f8f300d53b227 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Fri, 2 Mar 2012 15:12:16 +0100
Subject: [PATCH] Mempools: Implemented mp_str_from_mem()

---
 ucw/mempool-str.c | 10 ++++++++++
 ucw/mempool.h     |  5 +++++
 ucw/mempool.t     |  1 +
 3 files changed, 16 insertions(+)

diff --git a/ucw/mempool-str.c b/ucw/mempool-str.c
index 970c9f4e..9391cbb6 100644
--- a/ucw/mempool-str.c
+++ b/ucw/mempool-str.c
@@ -85,6 +85,15 @@ mp_strjoin(struct mempool *p, char **a, uns n, uns sep)
   return dest;
 }
 
+char *
+mp_str_from_mem(struct mempool *a, const void *mem, uns len)
+{
+  char *str = mp_alloc_noalign(a, len+1);
+  memcpy(str, mem, len);
+  str[len] = 0;
+  return str;
+}
+
 #ifdef TEST
 
 #include <stdio.h>
@@ -98,6 +107,7 @@ int main(void)
   char *a[] = { "bugs", "gnats", "insects" };
   puts(mp_strjoin(p, a, 3, '.'));
   puts(mp_strjoin(p, a, 3, 0));
+  puts(mp_str_from_mem(p, s+1, 2));
   return 0;
 }
 
diff --git a/ucw/mempool.h b/ucw/mempool.h
index bcc22bd3..350054e3 100644
--- a/ucw/mempool.h
+++ b/ucw/mempool.h
@@ -410,6 +410,11 @@ static inline char *LIKE_MALLOC mp_strcat(struct mempool *mp, const char *x, con
  * tells how many there is of them.
  **/
 char *mp_strjoin(struct mempool *p, char **a, uns n, uns sep) LIKE_MALLOC;
+/**
+ * Convert memory block to a string. Makes a copy of the given memory block
+ * in the mempool @p, adding an extra terminating zero byte at the end.
+ **/
+char *mp_str_from_mem(struct mempool *p, const void *mem, uns len) LIKE_MALLOC;
 
 
 /***
diff --git a/ucw/mempool.t b/ucw/mempool.t
index 3aeb2558..61956d49 100644
--- a/ucw/mempool.t
+++ b/ucw/mempool.t
@@ -9,3 +9,4 @@ Run:	../obj/ucw/mempool-str-t
 Out:	<<12345>>
 	bugs.gnats.insects
 	bugsgnatsinsects
+	23
-- 
2.39.2