jobid generate

src/include/idgen.h

@@ -0,0 +1,23 @@
+#if !defined(_IDGEN_H_)
+
+#define _IDGEN_H_ 1
+
+#include "config.h"
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <time.h>
+
+#include "mylock.h"
+
+typedef struct {
+    mylock_t lock;
+    time_t   timestamp;
+    uint32_t sequence;
+} idgen_ctx_t;
+
+extern int  idgen_ctx_init(idgen_ctx_t*);
+extern int  idgen(idgen_ctx_t*, size_t, size_t, size_t, uint64_t*);
+extern void idgen_ctx_fini(idgen_ctx_t*);
+
+#endif

src/include/utils.h

@@ -20,6 +20,8 @@
      | (((uint64_t)timestamp) << TIMESTAMP_SHIFT)                              \
      | (((uint64_t)tag) << TAG_SHIFT) | sequence)
 
+#define ROUNDUP(v, bits) (((v) + UMAX_BITS(bits)) & ~UMAX_BITS(bits))
+
 #define xce_use(x) (void)(x)
 
 #define float_near_zero (0.000001)