From 5874d32a342cfaf5d387ddcad563d8f313e5a1a6 Mon Sep 17 00:00:00 2001
From: Arvid Norberg <arvid@libtorrent.org>
Date: Tue, 26 May 2009 01:03:56 +0000
Subject: [PATCH] updates to C bindings

---
 bindings/c/library.cpp     | 34 +++++++++++++++++++++++++++-------
 bindings/c/libtorrent.h    | 22 ++++++++++++++++++++++
 bindings/c/simple_client.c |  7 +++++++
 3 files changed, 56 insertions(+), 7 deletions(-)

diff --git a/bindings/c/library.cpp b/bindings/c/library.cpp
index 85be0f43c..b40131537 100644
--- a/bindings/c/library.cpp
+++ b/bindings/c/library.cpp
@@ -282,7 +282,7 @@ TORRENT_EXPORT int session_add_torrent(void* ses, int tag, ...)
 	return i;
 }
 
-void session_remove_torrent(void* ses, int tor, int flags)
+TORRENT_EXPORT void session_remove_torrent(void* ses, int tor, int flags)
 {
 	using namespace libtorrent;
 	torrent_handle h = get_handle(tor);
@@ -292,7 +292,23 @@ void session_remove_torrent(void* ses, int tor, int flags)
 	s->remove_torrent(h, flags);	
 }
 
-int session_set_settings(void* ses, int tag, ...)
+TORRENT_EXPORT int session_pop_alert(void* ses, char* dest, int len, int* category)
+{
+	using namespace libtorrent;
+
+	session* s = (session*)ses;
+
+	std::auto_ptr<alert> a = s->pop_alert();
+	if (!a.get()) return -1;
+
+	if (category) *category = a->category();
+	strncpy(dest, a->message().c_str(), len - 1);
+	dest[len - 1] = 0;
+
+	return 0; // for now
+}
+
+TORRENT_EXPORT int session_set_settings(void* ses, int tag, ...)
 {
 	using namespace libtorrent;
 
@@ -344,6 +360,10 @@ int session_set_settings(void* ses, int tag, ...)
 				copy_proxy_setting(&ps, va_arg(lp, struct proxy_setting const*));
 				s->set_tracker_proxy(ps);
 			}
+			case SET_ALERT_MASK:
+			{
+				s->set_alert_mask(va_arg(lp, int));
+			}
 #ifndef TORRENT_DISABLE_DHT
 			case SET_DHT_PROXY:
 			{
@@ -374,7 +394,7 @@ int session_set_settings(void* ses, int tag, ...)
 	return 0;
 }
 
-int session_get_setting(void* ses, int tag, void* value, int* value_size)
+TORRENT_EXPORT int session_get_setting(void* ses, int tag, void* value, int* value_size)
 {
 	using namespace libtorrent;
 	session* s = (session*)ses;
@@ -400,7 +420,7 @@ int session_get_setting(void* ses, int tag, void* value, int* value_size)
 	}
 }
 
-int session_get_status(void* sesptr, struct session_status* s, int struct_size)
+TORRENT_EXPORT int session_get_status(void* sesptr, struct session_status* s, int struct_size)
 {
 	libtorrent::session* ses = (libtorrent::session*)sesptr;
 
@@ -457,7 +477,7 @@ int session_get_status(void* sesptr, struct session_status* s, int struct_size)
 	return 0;
 }
 
-int torrent_get_status(int tor, torrent_status* s, int struct_size)
+TORRENT_EXPORT int torrent_get_status(int tor, torrent_status* s, int struct_size)
 {
 	libtorrent::torrent_handle h = get_handle(tor);
 	if (!h.is_valid()) return -1;
@@ -515,7 +535,7 @@ int torrent_get_status(int tor, torrent_status* s, int struct_size)
 	return 0;
 }
 
-int torrent_set_settings(int tor, int tag, ...)
+TORRENT_EXPORT int torrent_set_settings(int tor, int tag, ...)
 {
 	using namespace libtorrent;
 	torrent_handle h = get_handle(tor);
@@ -557,7 +577,7 @@ int torrent_set_settings(int tor, int tag, ...)
 	return 0;
 }
 
-int torrent_get_setting(int tor, int tag, void* value, int* value_size)
+TORRENT_EXPORT int torrent_get_setting(int tor, int tag, void* value, int* value_size)
 {
 	using namespace libtorrent;
 	torrent_handle h = get_handle(tor);
diff --git a/bindings/c/libtorrent.h b/bindings/c/libtorrent.h
index e7e744a34..c80906d05 100644
--- a/bindings/c/libtorrent.h
+++ b/bindings/c/libtorrent.h
@@ -85,6 +85,7 @@ enum tags
 	SET_TRACKER_PROXY, // proxy_setting const*, session_only
 	SET_DHT_PROXY, // proxy_setting const*, session_only
 	SET_PROXY, // proxy_setting const*, session_only
+	SET_ALERT_MASK, // int, session_only
 };
 
 struct proxy_setting
@@ -98,6 +99,23 @@ struct proxy_setting
 	int type;
 };
 
+enum category_t
+{
+	cat_error = 0x1,
+	cat_peer = 0x2,
+	cat_port_mapping = 0x4,
+	cat_storage = 0x8,
+	cat_tracker = 0x10,
+	cat_debug = 0x20,
+	cat_status = 0x40,
+	cat_progress = 0x80,
+	cat_ip_block = 0x100,
+	cat_performance_warning = 0x200,
+	cat_dht = 0x400,
+
+	cat_all_categories = 0xffffffff
+};
+
 enum proxy_type_t
 {
 	proxy_none,
@@ -256,6 +274,10 @@ void session_close(void* ses);
 int session_add_torrent(void* ses, int first_tag, ...);
 void session_remove_torrent(void* ses, int tor, int flags);
 
+// return < 0 if there are no alerts. Otherwise returns the
+// type of alert that was returned
+int session_pop_alert(void* ses, char* dest, int len, int* category);
+
 int session_get_status(void* ses, struct session_status* s, int struct_size);
 
 // use SET_* tags in tag list
diff --git a/bindings/c/simple_client.c b/bindings/c/simple_client.c
index cce5fe078..3c1d7a2be 100644
--- a/bindings/c/simple_client.c
+++ b/bindings/c/simple_client.c
@@ -55,6 +55,7 @@ int main(int argc, char* argv[])
 	void* ses = session_create(
 		SES_LISTENPORT, 6881,
 		SES_LISTENPORT_END, 6889,
+		SES_ALERT_MASK, ~(cat_progress | cat_port_mapping | cat_debug | cat_performance_warning | cat_peer),
 		TAG_END);
 
 	int t = session_add_torrent(ses,
@@ -97,6 +98,12 @@ int main(int argc, char* argv[])
 			, message);
 
 
+		char msg[400];
+		while (session_pop_alert(ses, msg, sizeof(msg), 0) >= 0)
+		{
+			printf("%s\n", msg);
+		}
+
 		if (strlen(st.error) > 0)
 		{
 			fprintf(stderr, "\nERROR: %s\n", st.error);