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-rw-r--r--src/core/message.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/core/message.h b/src/core/message.h
index 03991166..6400fd55 100644
--- a/src/core/message.h
+++ b/src/core/message.h
@@ -1,5 +1,5 @@
//
-// Copyright 2020 Staysail Systems, Inc. <info@staysail.tech>
+// Copyright 2021 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2017 Capitar IT Group BV <info@capitar.com>
//
// This software is supplied under the terms of the MIT License, a
@@ -36,6 +36,11 @@ extern void nni_msg_dump(const char *, const nni_msg *);
extern void nni_msg_header_append_u32(nni_msg *, uint32_t);
extern uint32_t nni_msg_header_trim_u32(nni_msg *);
extern uint32_t nni_msg_trim_u32(nni_msg *);
+// Peek and poke variants just access the first uint32 in the
+// header. This is useful when incrementing reference counts, etc.
+// It's faster than trim and append, but logically equivalent.
+extern uint32_t nni_msg_header_peek_u32(nni_msg *);
+extern void nni_msg_header_poke_u32(nni_msg *, uint32_t);
extern void nni_msg_set_pipe(nni_msg *, uint32_t);
extern uint32_t nni_msg_get_pipe(const nni_msg *);
@@ -46,6 +51,8 @@ extern uint32_t nni_msg_get_pipe(const nni_msg *);
// Failure to do so will likely result in corruption.
extern void nni_msg_clone(nni_msg *);
extern nni_msg *nni_msg_unique(nni_msg *);
+extern bool nni_msg_shared(nni_msg *);
+
// nni_msg_pull_up ensures that the message is unique, and that any
// header present is "pulled up" into the message body. If the function
// cannot do this for any reason (out of space in the body), then NULL