From 98c2283b41bd958d85f07a3f2bb375ee3977bed5 Mon Sep 17 00:00:00 2001
From: DenisBiryukov91 <155981813+DenisBiryukov91@users.noreply.github.com>
Date: Wed, 18 Sep 2024 20:29:41 +0200
Subject: [PATCH] add z_encoding_equals (#682)

---
 docs/api.rst                        |  1 +
 include/zenoh-pico/api/primitives.h | 12 ++++++++++++
 src/api/api.c                       |  4 ++++
 3 files changed, 17 insertions(+)

diff --git a/docs/api.rst b/docs/api.rst
index b78f52968..1d9b5a097 100644
--- a/docs/api.rst
+++ b/docs/api.rst
@@ -311,6 +311,7 @@ Primitives
 .. autocfunction:: primitives.h::z_encoding_set_schema_from_str
 .. autocfunction:: primitives.h::z_encoding_set_schema_from_substr
 .. autocfunction:: primitives.h::z_encoding_to_string
+.. autocfunction:: primitives.h::z_encoding_equals
 .. autocfunction:: primitives.h::z_reply_err_payload
 .. autocfunction:: primitives.h::z_reply_err_encoding
 .. autocfunction:: primitives.h::z_slice_from_buf
diff --git a/include/zenoh-pico/api/primitives.h b/include/zenoh-pico/api/primitives.h
index 37edbaba2..1ec569a1a 100644
--- a/include/zenoh-pico/api/primitives.h
+++ b/include/zenoh-pico/api/primitives.h
@@ -387,6 +387,18 @@ z_result_t z_encoding_set_schema_from_substr(z_loaned_encoding_t *encoding, cons
  */
 z_result_t z_encoding_to_string(const z_loaned_encoding_t *encoding, z_owned_string_t *string);
 
+/**
+ * Checks if 2 encodings are equal.
+ *
+ * Parameters:
+ *   left: Pointer to first :c:type:`z_loaned_encoding_t` to compare.
+ *   right: Pointer to second :c:type:`z_loaned_encoding_t` to compare.
+ *
+ * Return:
+ *   ``true`` if `left` equals `right`, ``false`` otherwise.
+ */
+bool z_encoding_equals(const z_loaned_encoding_t *left, const z_loaned_encoding_t *right);
+
 /**
  * Gets the bytes data from a reply error payload by aliasing it.
  *
diff --git a/src/api/api.c b/src/api/api.c
index d20ac38b2..b693bf53f 100644
--- a/src/api/api.c
+++ b/src/api/api.c
@@ -406,6 +406,10 @@ z_result_t z_encoding_to_string(const z_loaned_encoding_t *encoding, z_owned_str
     return _Z_RES_OK;
 }
 
+bool z_encoding_equals(const z_loaned_encoding_t *left, const z_loaned_encoding_t *right) {
+    return left->id == right->id && _z_string_equals(&left->schema, &right->schema);
+}
+
 z_result_t z_slice_copy_from_buf(z_owned_slice_t *slice, const uint8_t *data, size_t len) {
     slice->_val = _z_slice_copy_from_buf(data, len);
     if (slice->_val.start == NULL) {