New API implementing odp_shm_free to match the odp_shm_reserve.
Signed-off-by: Yan Songming <[email protected]>
---
v2 fix the problem which Maxim found.
---
platform/linux-generic/odp_shared_memory.c | 43 +++++++++++++++++++++++++-----
1 file changed, 37 insertions(+), 6 deletions(-)
diff --git a/platform/linux-generic/odp_shared_memory.c
b/platform/linux-generic/odp_shared_memory.c
index 24a5d60..a1321bf 100644
--- a/platform/linux-generic/odp_shared_memory.c
+++ b/platform/linux-generic/odp_shared_memory.c
@@ -114,6 +114,43 @@ static int find_block(const char *name, uint32_t *index)
return 0;
}
+int odp_shm_free(odp_shm_t shm)
+{
+ uint32_t i;
+ int ret;
+ odp_shm_block_t *shm_block;
+ uint64_t alloc_size;
+
+ i = from_handle(shm);
+ if (odp_shm_tbl->block[i].addr == NULL) {
+ /* free block */
+ ODP_DBG("odp_shm_free: Free block failed\n");
+ return 0;
+ }
+
+ odp_spinlock_lock(&odp_shm_tbl->lock);
+ shm_block = &odp_shm_tbl->block[i];
+
+ alloc_size = shm_block->size + shm_block->align;
+ ret = munmap(shm_block->addr, alloc_size);
+ if (0 != ret) {
+ ODP_DBG("odp_shm_free: munmap failed\n");
+ odp_spinlock_unlock(&odp_shm_tbl->lock);
+ return -1;
+ }
+
+ if (shm_block->flags & ODP_SHM_PROC) {
+ ret = shm_unlink(shm_block->name);
+ if (0 != ret) {
+ ODP_DBG("odp_shm_free: shm_unlink failed\n");
+ odp_spinlock_unlock(&odp_shm_tbl->lock);
+ return -1;
+ }
+ }
+ memset(&odp_shm_tbl->block[i], 0, sizeof(odp_shm_block_t));
+ odp_spinlock_unlock(&odp_shm_tbl->lock);
+ return 0;
+}
odp_shm_t odp_shm_reserve(const char *name, uint64_t size, uint64_t align,
uint32_t flags)
@@ -221,12 +258,6 @@ odp_shm_t odp_shm_reserve(const char *name, uint64_t size,
uint64_t align,
return block->hdl;
}
-int odp_shm_free(odp_shm_t shm ODP_UNUSED)
-{
- ODP_UNIMPLEMENTED();
- return 0;
-}
-
odp_shm_t odp_shm_lookup(const char *name)
{
uint32_t i;
--
1.8.3.1
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