From fbee13e2f633f0db7c6c9ceeaf4c5d4867baa4f8 Mon Sep 17 00:00:00 2001
From: Vito Caputo <vcaputo@pengaru.com>
Date: Tue, 24 Aug 2021 16:43:29 -0700
Subject: iou: introduce iou_async() for threading

This is a preliminary implementaion of an iou-abstracted thread
pool.

Two callbacks are provided to iou_async():

async_cb:
 Called by a worker thread and must be carefully written for
 concurrent execution.

completion_cb:
 Called by iou_run() after a thread has finished with async_cb().

As completion_cb() is called in the iou_run() context, assuming
the caller is always entering iou_run() from the main thread,
it may be viewed as a continuation point for the async work
reentering the serial execution flow.

At this time every iou_new() will create two worker threads.  In
the future it may just create a thread per core or something like
that.
---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index cfe6dca..db389ef 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,6 @@
 AC_INIT([libiou], [0.1], [vcaputo@pengaru.com])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])
+AC_CONFIG_MACRO_DIRS([m4])
 AC_PROG_CC
 AM_PROG_CC_C_O
 AM_PROG_AR
@@ -8,6 +9,11 @@ AM_SILENT_RULES([yes])
 
 CFLAGS="$CFLAGS -Wall"
 
+AX_PTHREAD
+LIBS="$PTHREAD_LIBS $LIBS"
+CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+CC="$PTHREAD_CC"
+
 dnl Check for liburing
 PKG_CHECK_MODULES(URING, liburing)
 CFLAGS="$CFLAGS $URING_CFLAGS"
-- 
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