3 files changed, 68 insertions, 0 deletions
diff --git a/common/CMakeLists.txt b/common/CMakeLists.txt
index aa5402a..876571b 100644
--- a/common/CMakeLists.txt
+++ b/common/CMakeLists.txt
@@ -2,3 +2,4 @@ file(GLOB_RECURSE SOURCES *.c)
 include_directories("${CMAKE_CURRENT_BINARY_DIR}")
 
 ADD_LIBRARY(common STATIC ${SOURCES})
+target_link_libraries(common config curl)
diff --git a/common/subscriptions.c b/common/subscriptions.c
new file mode 100644
index 0000000..d6d15aa
--- /dev/null
+++ b/common/subscriptions.c
@@ -0,0 +1,39 @@
+#include "subscriptions.h"
+
+void common_subscription_add(struct subscription** subscriptions, const char* id, const char* name, enum subscription_type type)
+{
+    struct subscription * subscription = common_subscription_new(id, name, type);
+    HASH_ADD_KEYPTR(hh, *subscriptions, subscription->id, strlen(id), subscription);
+}
+
+struct subscription* common_subscription_new(const char* id, const char* name, enum subscription_type type)
+{
+    struct subscription* subscription = malloc(sizeof(struct subscription));
+    subscription->id = malloc(strlen(id) + 1);
+    strcpy(subscription->id, id);
+    subscription->name = malloc(strlen(name) + 1);
+    strcpy(subscription->name, name);
+    subscription->type = type;
+    return subscription;
+}
+
+void common_subscriptions_free(struct subscription* subscriptions)
+{
+    struct subscription *sub, *tmp;
+
+    HASH_ITER(hh, subscriptions, sub, tmp) {
+        HASH_DEL(subscriptions, sub);
+        free(sub->id);
+        free(sub->name);
+        free(sub);
+    }
+}
+
+void common_subscriptions_const_walk(const struct subscription* subscriptions, void (*func)(const struct subscription*))
+{
+    const struct subscription *sub, *tmp;
+
+    HASH_ITER(hh, subscriptions, sub, tmp) {
+        func(sub);
+    }
+}
diff --git a/common/subscriptions.h b/common/subscriptions.h
new file mode 100644
index 0000000..6c10a24
--- /dev/null
+++ b/common/subscriptions.h
@@ -0,0 +1,28 @@
+#ifndef COMMON_SUBSCRIPTIONS_H_
+#define COMMON_SUBSCRIPTIONS_H_
+
+#include <uthash.h>
+
+static const char *subscription_type_str[] = {
+    "channel", "direct", "private",
+};
+
+enum subscription_type {
+    SUBSCRIPTION_CHANNEL,
+    SUBSCRIPTION_DIRECT,
+    SUBSCRIPTION_PRIVATE,
+};
+
+struct subscription {
+    char* id;
+    char* name;
+    enum subscription_type type;
+    UT_hash_handle hh;
+};
+
+void common_subscription_add(struct subscription** subscriptions, const char* id, const char* name, enum subscription_type type);
+struct subscription* common_subscription_new(const char* id, const char* name, enum subscription_type type);
+void common_subscriptions_free(struct subscription* subscriptions);
+void common_subscriptions_const_walk(const struct subscription* subscriptions, void (*func)(const struct subscription*));
+
+#endif