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mem: use right flags when mapping

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This commit is contained in:
Wim Taymans 2019-08-07 12:51:36 +02:00
parent ba118e26a3
commit ee66893133
1 changed files with 17 additions and 9 deletions
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26
src/pipewire/mem.c
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@ -272,6 +272,7 @@ static struct mapping * memblock_map(struct memblock *b,
prot |= PROT_WRITE;
if (flags & PW_MEMMAP_FLAG_TWICE) {
pw_log_error("pool %p: implement me PW_MEMMAP_FLAG_TWICE", p);
errno = ENOTSUP;
return NULL;
}
@ -398,6 +399,18 @@ int pw_memmap_free(struct pw_memmap *map)
return 0;
}
static inline enum pw_memmap_flags block_flags_to_mem(enum pw_memblock_flags flags)
{
enum pw_memmap_flags fl = 0;
if (flags & PW_MEMBLOCK_FLAG_READABLE)
fl |= PW_MEMMAP_FLAG_READ;
if (flags & PW_MEMBLOCK_FLAG_WRITABLE)
fl |= PW_MEMMAP_FLAG_WRITE;
return fl;
}
/** Create a new memblock
* \param pool the pool to use
* \param flags memblock flags
@ -458,14 +471,8 @@ struct pw_memblock * pw_mempool_alloc(struct pw_mempool *pool, enum pw_memblock_
}
#endif
if (flags & PW_MEMBLOCK_FLAG_MAP && size > 0) {
enum pw_memmap_flags fl = 0;
if (flags & PW_MEMBLOCK_FLAG_READABLE)
fl |= PW_MEMMAP_FLAG_READ;
if (flags & PW_MEMBLOCK_FLAG_WRITABLE)
fl |= PW_MEMMAP_FLAG_WRITE;
b->this.map = pw_memblock_map(&b->this, fl, 0, size, NULL);
b->this.map = pw_memblock_map(&b->this,
block_flags_to_mem(flags), 0, size, NULL);
if (b->this.map == NULL) {
res = -errno;
pw_log_warn("Failed to map: %m");
@ -589,7 +596,8 @@ struct pw_memmap * pw_mempool_import_map(struct pw_mempool *pool,
offset = SPA_PTRDIFF(data, old->map->ptr);
map = pw_memblock_map(block, block->flags, offset, size, tag);
map = pw_memblock_map(block,
block_flags_to_mem(block->flags), offset, size, tag);
if (map == NULL)
return NULL;