From 3e7f96d9429aa66c05fcbb19100f66f83aa4f6b3 Mon Sep 17 00:00:00 2001
From: Cedric BAIL <cedric.bail@free.fr>
Date: Wed, 29 May 2019 13:49:26 -0400
Subject: [PATCH] eina: add eina_slstr_copy_new_length.

Reviewers: SanghyeonLee, bu5hm4n, zmike, segfaultxavi, lauromoura, felipealmeida, raster

Reviewed By: bu5hm4n, zmike

Subscribers: #reviewers, #committers

Tags: #efl

Maniphest Tasks: T7832

Differential Revision: https://phab.enlightenment.org/D8800
---
 src/lib/eina/eina_slstr.c | 17 +++++++++++++++++
 src/lib/eina/eina_slstr.h | 19 +++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/src/lib/eina/eina_slstr.c b/src/lib/eina/eina_slstr.c
index 143965a..017b692 100644
--- a/src/lib/eina/eina_slstr.c
+++ b/src/lib/eina/eina_slstr.c
@@ -109,6 +109,23 @@ eina_slstr_copy_new(const char *string)
 }
 
 EAPI Eina_Slstr *
+eina_slstr_copy_new_length(const char *string, size_t len)
+{
+   Eina_FreeQ *fq;
+   char *copy;
+
+   if (!string) return NULL;
+
+   fq = _slstr_freeq_get(EINA_FALSE);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(fq, NULL);
+
+   copy = eina_strndup(string, len);
+   if (!copy) return NULL;
+   eina_freeq_ptr_add(fq, copy, free, len);
+   return copy;
+}
+
+EAPI Eina_Slstr *
 eina_slstr_steal_new(char *string)
 {
    Eina_FreeQ *fq;
diff --git a/src/lib/eina/eina_slstr.h b/src/lib/eina/eina_slstr.h
index ce93e23..7f6144f 100644
--- a/src/lib/eina/eina_slstr.h
+++ b/src/lib/eina/eina_slstr.h
@@ -52,6 +52,25 @@ EAPI Eina_Slstr *
 eina_slstr_copy_new(const char *string);
 
 /**
+ * @brief Create a new short lived string by duplicating another string.
+ *
+ * @param[in] string An existing string, it will be copied.
+ * @param[in] len How many charactere max to copy.
+ * @return A new Eina_Slstr or NULL if out of memory.
+ *
+ * Usage example:
+ * @code
+ * char local[200];
+ * sprintf(local, "Hello %d", value);
+ * return eina_slstr_copy_new_length(local, 5);
+ * @endcode
+ *
+ * @since 1.19
+ */
+EAPI Eina_Slstr *
+eina_slstr_copy_new_length(const char *string, size_t len);
+
+/**
  * @brief Create a new short lived string by taking ownership of a string.
  *
  * @param[in] string An existing string. It will not be duplicated.
-- 
2.7.4