Move to generic socket & pipe workers, and up to 4 each.

This should eliminate all need for protocols to do their own
thread management tasks.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/core/defs.h b/src/core/defs.h
index 98f4e661..9c745660 100644
--- a/src/core/defs.h
+++ b/src/core/defs.h
@@ -37,6 +37,7 @@ typedef struct nni_proto		nni_proto;
 typedef int				nni_signal;     // Wakeup channel.
 typedef uint64_t			nni_time;       // Abs. time (usec).
 typedef int64_t				nni_duration;   // Rel. time (usec).
+typedef void (*nni_worker)(void *);
 
 // Used by transports for scatter gather I/O.
 typedef struct {
@@ -53,6 +54,9 @@ typedef struct {
 #define NNI_ALLOC_STRUCT(s)	nni_alloc(sizeof (*s))
 #define NNI_FREE_STRUCT(s)	nni_free((s), sizeof (*s))
 
+// Maximum number of socket or pipe worker threads.
+#define NNI_MAXWORKERS    4
+
 #define NNI_PUT16(ptr, u)				      \
 	do {						      \
 		(ptr)[0] = (uint8_t) (((uint16_t) (u)) >> 8); \