flow: flow log threading setup

Set up threading for the flow logger.

src/output.c

@@ -354,6 +354,76 @@ error:
     exit(EXIT_FAILURE);
 }
 
+/**
+ * \brief Register a flow output module.
+ *
+ * This function will register an output module so it can be
+ * configured with the configuration file.
+ *
+ * \retval Returns 0 on success, -1 on failure.
+ */
+void
+OutputRegisterFlowModule(const char *name, const char *conf_name,
+    OutputCtx *(*InitFunc)(ConfNode *), FlowLogger FlowLogFunc)
+{
+    if (unlikely(FlowLogFunc == NULL)) {
+        goto error;
+    }
+
+    OutputModule *module = SCCalloc(1, sizeof(*module));
+    if (unlikely(module == NULL)) {
+        goto error;
+    }
+
+    module->name = name;
+    module->conf_name = conf_name;
+    module->InitFunc = InitFunc;
+    module->FlowLogFunc = FlowLogFunc;
+    TAILQ_INSERT_TAIL(&output_modules, module, entries);
+
+    SCLogDebug("Flow logger \"%s\" registered.", name);
+    return;
+error:
+    SCLogError(SC_ERR_FATAL, "Fatal error encountered. Exiting...");
+    exit(EXIT_FAILURE);
+}
+
+/**
+ * \brief Register a flow output sub-module.
+ *
+ * This function will register an output module so it can be
+ * configured with the configuration file.
+ *
+ * \retval Returns 0 on success, -1 on failure.
+ */
+void
+OutputRegisterFlowSubModule(const char *parent_name, const char *name,
+    const char *conf_name, OutputCtx *(*InitFunc)(ConfNode *, OutputCtx *),
+    FlowLogger FlowLogFunc)
+{
+    if (unlikely(FlowLogFunc == NULL)) {
+        goto error;
+    }
+
+    OutputModule *module = SCCalloc(1, sizeof(*module));
+    if (unlikely(module == NULL)) {
+        goto error;
+    }
+
+    module->name = name;
+    module->conf_name = conf_name;
+    module->parent_name = parent_name;
+    module->InitSubFunc = InitFunc;
+    module->FlowLogFunc = FlowLogFunc;
+    TAILQ_INSERT_TAIL(&output_modules, module, entries);
+
+    SCLogDebug("Flow logger \"%s\" registered.", name);
+    return;
+error:
+    SCLogError(SC_ERR_FATAL, "Fatal error encountered. Exiting...");
+    exit(EXIT_FAILURE);
+}
+
 /**
  * \brief Get an output module by name.
  *

src/output.h

@@ -34,6 +34,7 @@
 #include "output-tx.h"
 #include "output-file.h"
 #include "output-filedata.h"
+#include "output-flow.h"
 
 typedef struct OutputModule_ {
     const char *name;
@@ -47,6 +48,7 @@ typedef struct OutputModule_ {
     TxLogger TxLogFunc;
     FileLogger FileLogFunc;
     FiledataLogger FiledataLogFunc;
+    FlowLogger FlowLogFunc;
     AppProto alproto;
 
     TAILQ_ENTRY(OutputModule_) entries;
@@ -80,6 +82,12 @@ void OutputRegisterFiledataSubModule(const char *parent_name, const char *name,
     const char *conf_name, OutputCtx *(*InitFunc)(ConfNode *, OutputCtx *),
     FiledataLogger FiledataLogFunc);
 
+void OutputRegisterFlowModule(const char *name, const char *conf_name,
+    OutputCtx *(*InitFunc)(ConfNode *), FlowLogger FlowLogFunc);
+void OutputRegisterFlowSubModule(const char *parent_name, const char *name,
+    const char *conf_name, OutputCtx *(*InitFunc)(ConfNode *, OutputCtx *),
+    FlowLogger FlowLogFunc);
+
 OutputModule *OutputGetModuleByConfName(const char *name);
 void OutputDeregisterAll(void);
 

src/runmodes.c

@@ -484,6 +484,12 @@ static void AddOutputToFreeList(OutputModule *module, OutputCtx *output_ctx)
 /** \brief Turn output into thread module */
 static void SetupOutput(const char *name, OutputModule *module, OutputCtx *output_ctx)
 {
+    /* flow logger doesn't run in the packet path */
+    if (module->FlowLogFunc) {
+        OutputRegisterFlowLogger(module->name, module->FlowLogFunc, output_ctx);
+        return;
+    }
+
     TmModule *tm_module = TmModuleGetByName(module->name);
     if (tm_module == NULL) {
         SCLogError(SC_ERR_INVALID_ARGUMENT,