Implement log handler delegate the user can set to forwarding logging output to another target

Signed-off-by: Simon Busch <morphis@gravedo.de>

2 files changed, 29 insertions, 0 deletions

diff --git a/samsung-ipc/ipc.c b/samsung-ipc/ipc.c
index d53ae5a..5c3639c 100644
--- a/samsung-ipc/ipc.c
+++ b/samsung-ipc/ipc.c
@@ -22,6 +22,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <assert.h>
 
 #include <radio.h>
 
@@ -31,6 +32,18 @@ extern struct ipc_ops crespo_ipc_ops;
 // extern struct ipc_ops h1_ipc_ops;
 
 
+void log_handler_default(const char *message, void *user_data)
+{
+    printf("%s\n", message);
+}
+
+void ipc_client_log(struct ipc_client *client, const char *message, ...)
+{
+    assert(client->log_handler != NULL);
+    // FIXME construct message with additional arguments!
+    client->log_handler(message, client->log_data);
+}
+
 struct ipc_client* ipc_client_new(int client_type)
 {
     struct ipc_client *client;
@@ -52,6 +65,7 @@ struct ipc_client* ipc_client_new(int client_type)
     client = (struct ipc_client*) malloc(sizeof(struct ipc_client));
     client->type = client_type;
     client->ops = ops;
+    client->log_handler = log_handler_default;
 
     return client;
 }
@@ -63,6 +77,16 @@ int ipc_client_free(struct ipc_client *client)
     return 0;
 }
 
+int ipc_client_set_log_handler(struct ipc_client *client, ipc_client_log_handler_cb log_handler_cb, void *user_data)
+{
+    if (client == NULL)
+        return -1;
+
+    client->log_handler = log_handler_cb;
+    client->log_data = user_data;
+}
+
+
 int ipc_client_set_delegates(struct ipc_client *client,
                              ipc_client_transport_cb write, void *write_data,
                              ipc_client_transport_cb read, void *read_data)
diff --git a/samsung-ipc/ipc_private.h b/samsung-ipc/ipc_private.h
index 1efcd26..d724781 100644
--- a/samsung-ipc/ipc_private.h
+++ b/samsung-ipc/ipc_private.h
@@ -23,6 +23,8 @@
 
 struct ipc_client;
 
+void ipc_client_log(struct ipc_client *client, const char *message, ...);
+
 struct ipc_ops {
     int (*bootstrap)(struct ipc_client *client);
     int (*open)(struct ipc_client *client);
@@ -40,6 +42,9 @@ struct ipc_client {
     ipc_client_transport_cb write;
     void *write_data;
 
+    ipc_client_log_handler_cb log_handler;
+    void *log_data;
+
     struct ipc_ops *ops;
 };