Signed-off-by: Maxim Uvarov <maxim.uva...@linaro.org>
---
helper/include/odp/helper/ring.h | 2 ++
helper/ring.c | 9 ++++++++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/helper/include/odp/helper/ring.h b/helper/include/odp/helper/ring.h
index 65c32ad..5e640a7 100644
--- a/helper/include/odp/helper/ring.h
+++ b/helper/include/odp/helper/ring.h
@@ -158,6 +158,8 @@ typedef struct odph_ring {
#define ODPH_RING_F_SP_ENQ 0x0001 /* The default enqueue is
"single-producer".*/
#define ODPH_RING_F_SC_DEQ 0x0002 /* The default dequeue is
"single-consumer".*/
+#define ODPH_RING_SHM_PROC 0x0004 /* If set - ring is visible from different
+ processes. Default is thread visible. */
#define ODPH_RING_QUOT_EXCEED (1 << 31) /* Quota exceed for burst ops */
#define ODPH_RING_SZ_MASK (unsigned)(0x0fffffff) /* Ring size mask */
diff --git a/helper/ring.c b/helper/ring.c
index 3122173..844abf7 100644
--- a/helper/ring.c
+++ b/helper/ring.c
@@ -158,8 +158,14 @@ odph_ring_create(const char *name, unsigned count,
unsigned flags)
char ring_name[ODPH_RING_NAMESIZE];
odph_ring_t *r;
size_t ring_size;
+ uint32_t shm_flag;
odp_shm_t shm;
+ if (flags & ODPH_RING_SHM_PROC)
+ shm_flag = ODP_SHM_PROC;
+ else
+ shm_flag = 0;
+
/* count must be a power of 2 */
if (!RING_VAL_IS_POWER_2(count) || (count > ODPH_RING_SZ_MASK)) {
ODPH_ERR("Requested size is invalid, must be power of 2, and do
not exceed the size limit %u\n",
@@ -172,7 +178,8 @@ odph_ring_create(const char *name, unsigned count, unsigned
flags)
odp_rwlock_write_lock(&qlock);
/* reserve a memory zone for this ring.*/
- shm = odp_shm_reserve(ring_name, ring_size, ODP_CACHE_LINE_SIZE, 0);
+ shm = odp_shm_reserve(ring_name, ring_size, ODP_CACHE_LINE_SIZE,
+ shm_flag);
r = odp_shm_addr(shm);
--
1.9.1
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