diff options
Diffstat (limited to 'src/include/utils/dsa.h')
| -rw-r--r-- | src/include/utils/dsa.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/include/utils/dsa.h b/src/include/utils/dsa.h index 3fd9bbd3a50..c4b122e34c9 100644 --- a/src/include/utils/dsa.h +++ b/src/include/utils/dsa.h @@ -71,12 +71,25 @@ typedef pg_atomic_uint64 dsa_pointer_atomic; #define DSA_POINTER_FORMAT "%016" INT64_MODIFIER "x" #endif +/* Flags for dsa_allocate_extended. */ +#define DSA_ALLOC_HUGE 0x01 /* allow huge allocation (> 1 GB) */ +#define DSA_ALLOC_NO_OOM 0x02 /* no failure if out-of-memory */ +#define DSA_ALLOC_ZERO 0x04 /* zero allocated memory */ + /* A sentinel value for dsa_pointer used to indicate failure to allocate. */ #define InvalidDsaPointer ((dsa_pointer) 0) /* Check if a dsa_pointer value is valid. */ #define DsaPointerIsValid(x) ((x) != InvalidDsaPointer) +/* Allocate uninitialized memory with error on out-of-memory. */ +#define dsa_allocate(area, size) \ + dsa_allocate_extended(area, size, 0) + +/* Allocate zero-initialized memory with error on out-of-memory. */ +#define dsa_allocate0(area, size) \ + dsa_allocate_extended(area, size, DSA_ALLOC_ZERO) + /* * The type used for dsa_area handles. dsa_handle values can be shared with * other processes, so that they can attach to them. This provides a way to @@ -105,8 +118,7 @@ extern void dsa_unpin(dsa_area *area); extern void dsa_set_size_limit(dsa_area *area, Size limit); extern Size dsa_minimum_size(void); extern dsa_handle dsa_get_handle(dsa_area *area); -extern dsa_pointer dsa_allocate(dsa_area *area, Size size); -extern dsa_pointer dsa_allocate0(dsa_area *area, Size size); +extern dsa_pointer dsa_allocate_extended(dsa_area *area, Size size, int flags); extern void dsa_free(dsa_area *area, dsa_pointer dp); extern void *dsa_get_address(dsa_area *area, dsa_pointer dp); extern void dsa_trim(dsa_area *area); |