From: Martin Ling <redacted>
Date: Fri, 20 Dec 2013 17:45:46 +0000 (+0000)
Subject: Use new libserialport event set API to make GPollFDs for serial sources.
X-Git-Tag: libsigrok-0.3.0~422
X-Git-Url: http://sigrok.org/gitweb/?a=commitdiff_plain;h=ba1949f583de322e74f43eb880529155a763a84f;p=libsigrok.git

Use new libserialport event set API to make GPollFDs for serial sources.
---

diff --git a/hardware/common/serial.c b/hardware/common/serial.c
index 0d26b464..891fd02d 100644
--- a/hardware/common/serial.c
+++ b/hardware/common/serial.c
@@ -638,25 +638,69 @@ SR_PRIV int sr_serial_extract_options(GSList *options, const char **serial_devic
 	return SR_OK;
 }
 
-SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
-		int timeout, sr_receive_data_callback_t cb, void *cb_data)
-{
 #ifdef _WIN32
-	return SR_ERR;
+typedef HANDLE event_handle;
 #else
-	int fd;
-	sp_get_port_handle(serial->data, &fd);
-	return sr_source_add(fd, events, timeout, cb, cb_data);
+typedef int event_handle;
 #endif
+
+SR_PRIV int serial_source_add(struct sr_serial_dev_inst *serial, int events,
+		int timeout, sr_receive_data_callback_t cb, void *cb_data)
+{
+	enum sp_event mask = 0;
+	unsigned int i;
+
+	if (sp_new_event_set(&serial->event_set) != SP_OK)
+		return SR_ERR;
+
+	if (events & G_IO_IN)
+		mask |= SP_EVENT_RX_READY;
+	if (events & G_IO_OUT)
+		mask |= SP_EVENT_TX_READY;
+	if (events & G_IO_ERR)
+		mask |= SP_EVENT_ERROR;
+
+	if (sp_add_port_events(serial->event_set, serial->data, mask) != SP_OK) {
+		sp_free_event_set(serial->event_set);
+		return SR_ERR;
+	}
+
+	serial->pollfds = (GPollFD *) g_malloc0(sizeof(GPollFD) * serial->event_set->count);
+
+	for (i = 0; i < serial->event_set->count; i++) {
+
+		serial->pollfds[i].fd = ((event_handle *) serial->event_set->handles)[i];
+
+		mask = serial->event_set->masks[i];
+
+		if (mask & SP_EVENT_RX_READY)
+			serial->pollfds[i].events |= G_IO_IN;
+		if (mask & SP_EVENT_TX_READY)
+			serial->pollfds[i].events |= G_IO_OUT;
+		if (mask & SP_EVENT_ERROR)
+			serial->pollfds[i].events |= G_IO_ERR;
+
+		if (sr_session_source_add_pollfd(&serial->pollfds[i],
+				timeout, cb, cb_data) != SR_OK)
+			return SR_ERR;
+	}
+
+	return SR_OK;
 }
 
 SR_PRIV int serial_source_remove(struct sr_serial_dev_inst *serial)
 {
-#ifdef _WIN32
-	return SR_ERR;
-#else
-	int fd;
-	sp_get_port_handle(serial->data, &fd);
-	return sr_source_remove(fd);
-#endif
+	unsigned int i;
+
+	for (i = 0; i < serial->event_set->count; i++)
+		if (sr_session_source_remove_pollfd(&serial->pollfds[i]) != SR_OK)
+			return SR_ERR;
+
+	g_free(serial->pollfds);
+	sp_free_event_set(serial->event_set);
+
+	serial->pollfds = NULL;
+	serial->event_set = NULL;
+
+	return SR_OK;
 }
diff --git a/libsigrok-internal.h b/libsigrok-internal.h
index 9c00d9bd..d9def32e 100644
--- a/libsigrok-internal.h
+++ b/libsigrok-internal.h
@@ -88,6 +88,10 @@ struct sr_serial_dev_inst {
 	int nonblocking;
 	/** libserialport port handle */
 	struct sp_port *data;
+	/** libserialport event set */
+	struct sp_event_set *event_set;
+	/** GPollFDs for event polling */
+	GPollFD *pollfds;
 };
 #endif