lei.chen/myxce
1
0
Fork 1
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat(job-array-one-based-index): apiserver backend ID helpers and array ID wrapper (task 5.1)

Browse source 
GenerateArrayJobID wraps libxce idgen_array (first element, index 1;
one-element arrays included) with a non-cgo stub; pure helpers
ParseHumanJobIDStrict (written identity with exact field-width checks,
uint64 overflow reported as a width error), IsArrayCapableKey and
MakeElementID (bit-identical to libxce jobsel_element_id).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Rongsong Shen 2026-10-01 11:29:11 +00:00
parent 47b9938120
commit b88e352616
Signed by untrusted user: rshen
GPG key ID: 80533536B0EB651C
7 changed files with 260 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

19
src/frontend/apiserver/backend/clib.go
View file

@ -346,6 +346,25 @@ func GenerateJobID(clusterID, apiserverID int, arraySize int) (uint64, error) {
return uint64(jobID), nil
}
// GenerateArrayJobID calls the C idgen_array() to allocate a new array of n
// elements (1 <= n <= 32767, numbered from 1) and returns the first element's
// ID (tag TAG_JOB_ARRAY, index 1); ExtractArrayBaseID of it is the array ID.
// n == 1 is a one-element array, not an ordinary job (job-array-one-based-index
// 1.1, 1.2). Errors on a bad n or when the sequence block would overflow.
func GenerateArrayJobID(clusterID, apiserverID int, n int) (uint64, error) {
if n < 1 {
return 0, fmt.Errorf("idgen_array: invalid array size %d", n)
}
idCtxOnce.Do(initIDGen)
var first C.uint64_t
rc := C.idgen_array(&gIDCtx, C.size_t(clusterID), C.size_t(apiserverID),
C.size_t(n), &first)
if rc < 0 {
return 0, fmt.Errorf("idgen_array failed: %d", int(rc))
}
return uint64(first), nil
}
// Cleanup releases C resources. Call at process shutdown.
func Cleanup() {
C.idgen_ctx_fini(&gIDCtx)