Move cancellation point definitions to their own header file.

net/socket/accept.c

@@ -48,7 +48,7 @@
 #include <assert.h>
 #include <debug.h>
 
-#include <nuttx/pthread.h>
+#include <nuttx/cancelpt.h>
 #include <arch/irq.h>
 
 #include "tcp/tcp.h"

net/socket/connect.c

@@ -51,7 +51,7 @@
 #include <arch/irq.h>
 
 #include <nuttx/semaphore.h>
-#include <nuttx/pthread.h>
+#include <nuttx/cancelpt.h>
 #include <nuttx/net/net.h>
 #include <nuttx/net/netdev.h>
 #include <nuttx/net/udp.h>

net/socket/recvfrom.c

@@ -57,7 +57,7 @@
 
 #include <nuttx/clock.h>
 #include <nuttx/semaphore.h>
-#include <nuttx/pthread.h>
+#include <nuttx/cancelpt.h>
 #include <nuttx/net/net.h>
 #include <nuttx/net/iob.h>
 #include <nuttx/net/netdev.h>

net/socket/send.c

@@ -43,7 +43,7 @@
 #include <sys/socket.h>
 #include <errno.h>
 
-#include <nuttx/pthread.h>
+#include <nuttx/cancelpt.h>
 
 #include "tcp/tcp.h"
 #include "udp/udp.h"

net/socket/sendto.c

@@ -45,7 +45,7 @@
 #include <errno.h>
 #include <debug.h>
 
-#include <nuttx/pthread.h>
+#include <nuttx/cancelpt.h>
 #include <nuttx/net/net.h>
 
 #include "udp/udp.h"