Create a new shared memory segment — segment_create • shard

Create a new shared memory segment

Usage

segment_create(
  size,
  backing = c("auto", "mmap", "shm"),
  path = NULL,
  readonly = FALSE
)

Arguments

size: Size of the segment in bytes
backing: Backing type: "auto", "mmap", or "shm"
path: Optional file path for mmap backing (NULL for temp file)
readonly: Create as read-only (after initial write)

Value

A shard_segment object backed by shared memory.

Examples

# \donttest{
seg <- segment_create(1024 * 1024)
segment_info(seg)
#> $size
#> [1] 1048576
#> 
#> $backing
#> [1] "mmap"
#> 
#> $path
#> [1] "/tmp/shard_7143_1774903666_1774903658"
#> 
#> $readonly
#> [1] FALSE
#> 
#> $owns
#> [1] TRUE
#> 
segment_close(seg)
# }