From 96682a8284cc234207d2ba6a60b8f9939c17834f Mon Sep 17 00:00:00 2001
From: Dimitri Staessens <dimitri.staessens@ugent.be>
Date: Thu, 25 Oct 2018 21:58:21 +0200
Subject: lib: Revise du buff API towards a memory allocator
This changes the API to the rdrbuff to treat it as a pool memory
allocator. The head and tailspace to allocate in a buffer is now set
system-wide instead of being passed as a parameter.
Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be>
Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
---
include/ouroboros/shm_rdrbuff.h | 20 +++++++++-----------
1 file changed, 9 insertions(+), 11 deletions(-)
(limited to 'include')
diff --git a/include/ouroboros/shm_rdrbuff.h b/include/ouroboros/shm_rdrbuff.h
index 49551497..dc8418fd 100644
--- a/include/ouroboros/shm_rdrbuff.h
+++ b/include/ouroboros/shm_rdrbuff.h
@@ -42,18 +42,16 @@ void shm_rdrbuff_destroy(struct shm_rdrbuff * rdrb);
void shm_rdrbuff_purge(void);
-/* returns the index of the buffer in the DU map */
-ssize_t shm_rdrbuff_write(struct shm_rdrbuff * rdrb,
- size_t headspace,
- size_t tailspace,
- const uint8_t * data,
- size_t data_len);
+/* Returns block index, a ptr and du_buff. */
+ssize_t shm_rdrbuff_alloc(struct shm_rdrbuff * rdrb,
+ size_t count,
+ uint8_t ** ptr,
+ struct shm_du_buff ** sdb);
-ssize_t shm_rdrbuff_write_b(struct shm_rdrbuff * rdrb,
- size_t headspace,
- size_t tailspace,
- const uint8_t * data,
- size_t data_len,
+ssize_t shm_rdrbuff_alloc_b(struct shm_rdrbuff * rdrb,
+ size_t count,
+ uint8_t ** ptr,
+ struct shm_du_buff ** sdb,
const struct timespec * abstime);
ssize_t shm_rdrbuff_read(uint8_t ** dst,
--
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