1 files changed, 136 insertions, 0 deletions
diff --git a/lib/isc/app_api.c b/lib/isc/app_api.c
new file mode 100644
index 000000000000..ce767d175053
--- /dev/null
+++ b/lib/isc/app_api.c
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2009  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* $Id: app_api.c,v 1.5 2009/09/02 23:48:02 tbox Exp $ */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include <isc/app.h>
+#include <isc/magic.h>
+#include <isc/mutex.h>
+#include <isc/once.h>
+#include <isc/util.h>
+
+static isc_mutex_t createlock;
+static isc_once_t once = ISC_ONCE_INIT;
+static isc_appctxcreatefunc_t appctx_createfunc = NULL;
+
+#define ISCAPI_APPMETHODS_VALID(m) ISC_MAGIC_VALID(m, ISCAPI_APPMETHODS_MAGIC)
+
+static void
+initialize(void) {
+	RUNTIME_CHECK(isc_mutex_init(&createlock) == ISC_R_SUCCESS);
+}
+
+isc_result_t
+isc_app_register(isc_appctxcreatefunc_t createfunc) {
+	isc_result_t result = ISC_R_SUCCESS;
+
+	RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS);
+
+	LOCK(&createlock);
+	if (appctx_createfunc == NULL)
+		appctx_createfunc = createfunc;
+	else
+		result = ISC_R_EXISTS;
+	UNLOCK(&createlock);
+
+	return (result);
+}
+
+isc_result_t
+isc_appctx_create(isc_mem_t *mctx, isc_appctx_t **ctxp) {
+	isc_result_t result;
+
+	LOCK(&createlock);
+
+	REQUIRE(appctx_createfunc != NULL);
+	result = (*appctx_createfunc)(mctx, ctxp);
+
+	UNLOCK(&createlock);
+
+	return (result);
+}
+
+void
+isc_appctx_destroy(isc_appctx_t **ctxp) {
+	REQUIRE(ctxp != NULL && ISCAPI_APPCTX_VALID(*ctxp));
+
+	(*ctxp)->methods->ctxdestroy(ctxp);
+
+	ENSURE(*ctxp == NULL);
+}
+
+isc_result_t
+isc_app_ctxstart(isc_appctx_t *ctx) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+
+	return (ctx->methods->ctxstart(ctx));
+}
+
+isc_result_t
+isc_app_ctxrun(isc_appctx_t *ctx) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+
+	return (ctx->methods->ctxrun(ctx));
+}
+
+isc_result_t
+isc_app_ctxsuspend(isc_appctx_t *ctx) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+
+	return (ctx->methods->ctxsuspend(ctx));
+}
+
+isc_result_t
+isc_app_ctxshutdown(isc_appctx_t *ctx) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+
+	return (ctx->methods->ctxshutdown(ctx));
+}
+
+void
+isc_app_ctxfinish(isc_appctx_t *ctx) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+
+	ctx->methods->ctxfinish(ctx);
+}
+
+void
+isc_appctx_settaskmgr(isc_appctx_t *ctx, isc_taskmgr_t *taskmgr) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+	REQUIRE(taskmgr != NULL);
+
+	ctx->methods->settaskmgr(ctx, taskmgr);
+}
+
+void
+isc_appctx_setsocketmgr(isc_appctx_t *ctx, isc_socketmgr_t *socketmgr) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+	REQUIRE(socketmgr != NULL);
+
+	ctx->methods->setsocketmgr(ctx, socketmgr);
+}
+
+void
+isc_appctx_settimermgr(isc_appctx_t *ctx, isc_timermgr_t *timermgr) {
+	REQUIRE(ISCAPI_APPCTX_VALID(ctx));
+	REQUIRE(timermgr != NULL);
+
+	ctx->methods->settimermgr(ctx, timermgr);
+}