nx_peer_piece.nx

buildroot/runtime/nx_peer_piece.nx

7482 B145 linesdepth 5pulls 8 transitivereach 0 importersview sourcekind tooltopic peer

docs dependencies structs consts functions

about

nx_peer_piece.nx -- BEP-3 REQUEST/PIECE block transfer + sha1 verify (X-TORRENT-LIVE-001 R4-b): the actual download mechanism. interested -> unchoke -> request(index,begin,length) -> PIECE (<index><begin><block>) -> extract block -> sha1-verify. Reuses nx_peerwire (BEP-3 build/parse, KAT'd) + nx_sha1 (hash) -- both on the nx_syscalls layer. GATE = SOVEREIGN LOOPBACK (TCP, the nx_peer_handshake pattern): a mock peer (listen-before-fork) completes the handshake, unchokes, and serves a known 16-byte block in a PIECE msg; the client requests it, extracts it, and asserts the block bytes + its sha1 match the expected. No external net; deterministic; no-hang. license_tier: ORIGINAL module: nishi-core.torrent.peer_piece depends: nishi-core.torrent.peerwire, nishi-core.crypto.sha1

dependencies 4 imports · 0 importers

imports: nx_peerwire.nxnx_itoa_lib.nxnx_connect.nxnx_sha1.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

structs

none

consts

16	const K_MAGIC_53377: i64 = 53377
51	const BLK: i64 = 16

functions

18	func pp_w(fd: i64, s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(fd,s,n); return 0 } called by 1: main
23	func pp_wn(fd: i64, v: i64) -> i64 { nxi_fd(fd, v); return 0 } called by 1: main calls 1: nxi_fd
24	func pp_sockaddr(sa: *u8, port: i64, i0: i64, i1: i64, i2: i64, i3: i64) -> i64 called by 1: main
31	func pp_read_n(fd: i64, buf: *u8, n: i64) -> i64 called by 2: pp_read_msg main calls 1: sys_read
36	func pp_write_n(fd: i64, buf: *u8, n: i64) -> i64 called by 1: main
42	func pp_read_msg(fd: i64, mb: *u8, cap: i64) -> i64 called by 1: main calls 2: pp_read_n _pw_get_u32
53	func main() -> i64 calls 22: pp_sockaddr sys_socket sys_setsockopt sys_set_socket_timeout sys_bind sys_listen+16