hostapd: Add build options for selecting eloop type

This adds CONFIG_ELOOP_POLL=y and CONFIG_ELOOP_EPOLL=y options to
hostapd build options similarly to how these were implemented for
wpa_supplicant.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>

hostapd/Android.mk

@@ -127,6 +127,15 @@ endif
 endif
 
 OBJS += src/utils/eloop.c
+
+ifdef CONFIG_ELOOP_POLL
+L_CFLAGS += -DCONFIG_ELOOP_POLL
+endif
+
+ifdef CONFIG_ELOOP_EPOLL
+L_CFLAGS += -DCONFIG_ELOOP_EPOLL
+endif
+
 OBJS += src/utils/common.c
 OBJS += src/utils/wpa_debug.c
 OBJS += src/utils/wpabuf.c

hostapd/Makefile

@@ -107,6 +107,14 @@ LIBS_h += -lrt
 LIBS_n += -lrt
 endif
 
+ifdef CONFIG_ELOOP_POLL
+CFLAGS += -DCONFIG_ELOOP_POLL
+endif
+
+ifdef CONFIG_ELOOP_EPOLL
+CFLAGS += -DCONFIG_ELOOP_EPOLL
+endif
+
 OBJS += ../src/utils/common.o
 OBJS_c += ../src/utils/common.o
 OBJS += ../src/utils/wpa_debug.o

hostapd/android.config

@@ -180,6 +180,12 @@ CONFIG_OS=unix
 #LIBS_p += -lbfd -liberty -lz
 #LIBS_c += -lbfd -liberty -lz
 
+# Should we use poll instead of select? Select is used by default.
+#CONFIG_ELOOP_POLL=y
+
+# Should we use epoll instead of select? Select is used by default.
+#CONFIG_ELOOP_EPOLL=y
+
 # Enable AP
 CONFIG_AP=y
 

hostapd/defconfig

@@ -240,6 +240,12 @@ CONFIG_IPV6=y
 # requirements described above.
 #CONFIG_NO_RANDOM_POOL=y
 
+# Should we use poll instead of select? Select is used by default.
+#CONFIG_ELOOP_POLL=y
+
+# Should we use epoll instead of select? Select is used by default.
+#CONFIG_ELOOP_EPOLL=y
+
 # Select TLS implementation
 # openssl = OpenSSL (default)
 # gnutls = GnuTLS