use nix build & meson & zlog

src/include/vtaskmgr.h

@@ -0,0 +1,61 @@
+#if !defined(_VTASKMGR_H_)
+
+#define _VTASKMGR_H_ 1
+
+#include <pthread.h>
+#include <stddef.h>
+
+#include "dataq.h"
+#include "mylock.h"
+#include "netio.h"
+#include "request.h"
+
+typedef int (*vtask_func_t)(void*);
+
+typedef struct {
+    void*        owner;
+    ioctx_t      ctx;
+    int          vcpu;
+    vtask_func_t entry;
+} vtask_t;
+
+#define ITPTR_TO_VTASK(p) \
+    ((vtask_t*)(((char*)p) - offsetof(ioctx_t, link) - offsetof(vtask_t, ctx)))
+
+typedef enum {
+    VCPU_IDLE = 0,
+    VCPU_BUSY,
+    VCPU_ERR
+} vcpu_state_t;
+
+typedef struct {
+    int          cpuid;
+    vcpu_state_t state;
+    void*        owner;
+    cbuf_t       wbuf;
+    vtask_t*     task;
+    pthread_t    vcpu;
+} vcpu_t;
+
+typedef struct {
+    int       n_vcpus;
+    pthread_t dispatcher;
+    vcpu_t*   vcpus;
+    cbuf_t    wbuf;
+    cbuf_t    wtbuf; /* used to wake up vtaskmgr to check tasks */
+    dataq_t   taskq;
+} vtaskmgr_t;
+
+extern vtask_t* vtask_alloc();
+extern int      vtask_init(vtask_t*, vtask_func_t, endpoint_t*);
+extern void     vtask_fini(vtask_t*);
+
+extern int vtask_enq(vtaskmgr_t*, vtask_t*);
+
+extern int  vtaskmgr_init(vtaskmgr_t*, int);
+extern int  vtaskmgr_start(vtaskmgr_t*);
+extern void vtaskmgr_fini(vtaskmgr_t*);
+extern void vtaskmgr_wait(vtaskmgr_t *);
+extern void vtaskmgr_wakeup(vtaskmgr_t *);
+
+#endif