feat: add interactive FC01 heap4 card

2026-07-20 12:04:14 +02:00
parent bd34c7ec1e
commit 48eccb5e24
39 changed files with 7744 additions and 210 deletions
@@ -0,0 +1,29 @@
+@startuml
+scale 820 width
+top to bottom direction
+skinparam backgroundColor transparent
+skinparam shadowing false
+skinparam defaultFontName Monospace
+skinparam defaultFontSize 9
+skinparam rectangleBorderColor #2c7794
+skinparam rectangleBackgroundColor #edf6fa
+skinparam ArrowColor #8095a1
+title A5 FLOW — allocate, fragment, coalesce, verify
+
+rectangle "01 RESET\ninitial free = 4080" as S1
+rectangle "02 ALLOC A\n24 byte payload\nfirst-fit + split" as S2
+rectangle "03 ALLOC B / C\n40 + 16 byte payload\nafter = 3952" as S3
+rectangle "04 FREE A / C\nB remains allocated" as S4
+rectangle "05 E01 FRAGMENTED\n2 free blocks\ncurrent > largest" as S5
+rectangle "06 FREE B\ninsert by address\njoin right + left" as S6
+rectangle "07 E02 COALESCED\n1 free block\nfinal = initial" as S7
+rectangle "08 OOM CHECK\nNULL · hook=1\nasserts=0 · PASS=1" as S8
+
+S1 -right-> S2 : pvPortMalloc
+S2 -right-> S3 : split remainder
+S3 -right-> S4 : vPortFree
+S4 -down-> S5 : heap stats
+S5 -left-> S6 : continue
+S6 -left-> S7 : coalesce
+S7 -left-> S8 : oversized request
+@enduml