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authorNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
committerNicholas Noll <nbnoll@eml.cc>2021-11-11 16:31:58 -0800
commit9695ea005d4af93dcd60f74f10fd3c54499a182f (patch)
tree3e1a9abb9456ba07c0c97cd3d691f6a2df115791 /sys/base/coro/coro.c
parentc65794b50b1bc729e7a4e940b76a973afa3030b9 (diff)
chore: split up base library into individual files for smaller binaries
Diffstat (limited to 'sys/base/coro/coro.c')
-rw-r--r--sys/base/coro/coro.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/sys/base/coro/coro.c b/sys/base/coro/coro.c
new file mode 100644
index 0000000..2255c99
--- /dev/null
+++ b/sys/base/coro/coro.c
@@ -0,0 +1,43 @@
+#include "internal.h"
+
+/* Co-routine context */
+Coro*
+coro·make(uintptr stk, uintptr (*func)(Coro*, uintptr))
+{
+ if (!func) return nil;
+ if (stk == 0) stk = 8192;
+
+ byte *block = malloc(stk);
+ Coro *co = (Coro*)&block[stk - sizeof(Coro)];
+ co->bp = block;
+ co->size = stk;
+
+ _newcoro(co, func, co);
+ return co;
+}
+
+error
+coro·free(Coro *co)
+{
+ enum
+ {
+ NIL,
+ GOOD,
+ EMPTY,
+ LOST,
+ };
+
+ if (!co) return NIL;
+ if (!co->bp) return LOST;
+ if (co->size == 0) return EMPTY;
+
+ free(co->bp);
+
+ return GOOD;
+}
+
+uintptr
+coro·yield(Coro *c, uintptr arg)
+{
+ return _coroyield(c, arg);
+}