mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-31 22:45:39 +00:00
Make lib/isc/app.c opaque and thread-safe
This work cleans up the API which includes couple of things: 1. Make the isc_appctx_t type fully opaque 2. Protect all access to the isc_app_t members via stdatomics 3. sigwait() is part of POSIX.1, remove dead non-sigwait code 4. Remove unused code: isc_appctx_set{taskmgr,sockmgr,timermgr}
This commit is contained in:
@@ -1622,9 +1622,9 @@ main(int argc, char *argv[]) {
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fatal("failed to create mctx");
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fatal("failed to create mctx");
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CHECK(isc_appctx_create(mctx, &actx));
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CHECK(isc_appctx_create(mctx, &actx));
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CHECK(isc_taskmgr_createinctx(mctx, actx, 1, 0, &taskmgr));
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CHECK(isc_taskmgr_createinctx(mctx, 1, 0, &taskmgr));
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CHECK(isc_socketmgr_createinctx(mctx, actx, &socketmgr));
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CHECK(isc_socketmgr_createinctx(mctx, &socketmgr));
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CHECK(isc_timermgr_createinctx(mctx, actx, &timermgr));
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CHECK(isc_timermgr_createinctx(mctx, &timermgr));
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parse_args(argc, argv);
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parse_args(argc, argv);
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@@ -278,7 +278,7 @@ rndc_senddone(isc_task_t *task, isc_event_t *event) {
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if (sends == 0 && recvs == 0) {
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if (sends == 0 && recvs == 0) {
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isc_socket_detach(&sock);
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isc_socket_detach(&sock);
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isc_task_shutdown(task);
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isc_task_shutdown(task);
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RUNTIME_CHECK(isc_app_shutdown() == ISC_R_SUCCESS);
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isc_app_shutdown();
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}
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}
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}
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}
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@@ -347,7 +347,7 @@ rndc_recvdone(isc_task_t *task, isc_event_t *event) {
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if (sends == 0 && recvs == 0) {
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if (sends == 0 && recvs == 0) {
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isc_socket_detach(&sock);
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isc_socket_detach(&sock);
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isc_task_shutdown(task);
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isc_task_shutdown(task);
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RUNTIME_CHECK(isc_app_shutdown() == ISC_R_SUCCESS);
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isc_app_shutdown();
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}
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}
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}
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}
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@@ -98,7 +98,7 @@ tick(isc_task_t *task, isc_event_t *event) {
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info->ticks++;
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info->ticks++;
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if (strcmp(info->name, "1") == 0) {
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if (strcmp(info->name, "1") == 0) {
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if (info->ticks == 10) {
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if (info->ticks == 10) {
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RUNTIME_CHECK(isc_app_shutdown() == ISC_R_SUCCESS);
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isc_app_shutdown();
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} else if (info->ticks >= 15 && info->exiting) {
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} else if (info->ticks >= 15 && info->exiting) {
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isc_timer_detach(&info->timer);
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isc_timer_detach(&info->timer);
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isc_task_detach(&info->task);
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isc_task_detach(&info->task);
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@@ -635,10 +635,7 @@ LIBS="$PTHREAD_LIBS $LIBS"
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CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
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CC="$PTHREAD_CC"
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CC="$PTHREAD_CC"
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#
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AC_CHECK_FUNCS([pthread_attr_getstacksize pthread_attr_setstacksize])
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# We'd like to use sigwait() too
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#
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AC_CHECK_FUNCS([sigwait pthread_attr_getstacksize pthread_attr_setstacksize])
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AC_ARG_WITH([locktype],
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AC_ARG_WITH([locktype],
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AS_HELP_STRING([--with-locktype=ARG],
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AS_HELP_STRING([--with-locktype=ARG],
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@@ -420,13 +420,13 @@ dns_client_create(dns_client_t **clientp, unsigned int options) {
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result = isc_app_ctxstart(actx);
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result = isc_app_ctxstart(actx);
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto cleanup;
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goto cleanup;
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result = isc_taskmgr_createinctx(mctx, actx, 1, 0, &taskmgr);
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result = isc_taskmgr_createinctx(mctx, 1, 0, &taskmgr);
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto cleanup;
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goto cleanup;
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result = isc_socketmgr_createinctx(mctx, actx, &socketmgr);
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result = isc_socketmgr_createinctx(mctx, &socketmgr);
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto cleanup;
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goto cleanup;
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result = isc_timermgr_createinctx(mctx, actx, &timermgr);
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result = isc_timermgr_createinctx(mctx, &timermgr);
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto cleanup;
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goto cleanup;
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#if 0
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#if 0
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@@ -101,15 +101,15 @@ ctxs_init(isc_mem_t **mctxp, isc_appctx_t **actxp,
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto fail;
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goto fail;
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result = isc_taskmgr_createinctx(*mctxp, *actxp, 1, 0, taskmgrp);
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result = isc_taskmgr_createinctx(*mctxp, 1, 0, taskmgrp);
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto fail;
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goto fail;
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result = isc_socketmgr_createinctx(*mctxp, *actxp, socketmgrp);
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result = isc_socketmgr_createinctx(*mctxp, socketmgrp);
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto fail;
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goto fail;
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result = isc_timermgr_createinctx(*mctxp, *actxp, timermgrp);
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result = isc_timermgr_createinctx(*mctxp, timermgrp);
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if (result != ISC_R_SUCCESS)
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if (result != ISC_R_SUCCESS)
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goto fail;
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goto fail;
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@@ -103,14 +103,7 @@ typedef isc_event_t isc_appevent_t;
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* of the isc_app_ routines to work. app implementations must maintain
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* of the isc_app_ routines to work. app implementations must maintain
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* all app context invariants.
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* all app context invariants.
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*/
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*/
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struct isc_appctx {
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struct isc_appctx;
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unsigned int impmagic;
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unsigned int magic;
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};
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#define ISCAPI_APPCTX_MAGIC ISC_MAGIC('A','a','p','c')
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#define ISCAPI_APPCTX_VALID(c) ((c) != NULL && \
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(c)->magic == ISCAPI_APPCTX_MAGIC)
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ISC_LANG_BEGINDECLS
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ISC_LANG_BEGINDECLS
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@@ -184,10 +177,10 @@ isc_app_isrunning(void);
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*\li false App is not running.
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*\li false App is not running.
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*/
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*/
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isc_result_t
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void
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isc_app_ctxshutdown(isc_appctx_t *ctx);
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isc_app_ctxshutdown(isc_appctx_t *ctx);
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isc_result_t
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void
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isc_app_shutdown(void);
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isc_app_shutdown(void);
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/*!<
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/*!<
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* \brief Request application shutdown.
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* \brief Request application shutdown.
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@@ -205,13 +198,13 @@ isc_app_shutdown(void);
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*\li ISC_R_UNEXPECTED
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*\li ISC_R_UNEXPECTED
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*/
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*/
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isc_result_t
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void
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isc_app_ctxsuspend(isc_appctx_t *ctx);
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isc_app_ctxsuspend(isc_appctx_t *ctx);
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/*!<
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/*!<
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* \brief This has the same behavior as isc_app_ctxsuspend().
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* \brief This has the same behavior as isc_app_ctxsuspend().
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*/
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*/
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isc_result_t
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void
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isc_app_reload(void);
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isc_app_reload(void);
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/*!<
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/*!<
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* \brief Request application reload.
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* \brief Request application reload.
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@@ -295,44 +288,6 @@ isc_appctx_destroy(isc_appctx_t **ctxp);
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*\li *ctxp == NULL.
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*\li *ctxp == NULL.
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*/
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*/
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void
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isc_appctx_settaskmgr(isc_appctx_t *ctx, isc_taskmgr_t *taskmgr);
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/*!<
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* \brief Associate a task manager with an application context.
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*
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* This must be done before running tasks within the application context.
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*
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* Requires:
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*\li 'ctx' is a valid application context.
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*\li 'taskmgr' is a valid task manager.
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*/
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void
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isc_appctx_setsocketmgr(isc_appctx_t *ctx, isc_socketmgr_t *socketmgr);
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/*!<
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* \brief Associate a socket manager with an application context.
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*
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* This must be done before handling socket events within the application
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* context.
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*
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* Requires:
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*\li 'ctx' is a valid application context.
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*\li 'socketmgr' is a valid socket manager.
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*/
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void
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isc_appctx_settimermgr(isc_appctx_t *ctx, isc_timermgr_t *timermgr);
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/*!<
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* \brief Associate a socket timer with an application context.
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*
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* This must be done before handling timer events within the application
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* context.
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*
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* Requires:
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*\li 'ctx' is a valid application context.
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*\li 'timermgr' is a valid timer manager.
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*/
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ISC_LANG_ENDDECLS
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ISC_LANG_ENDDECLS
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#endif /* ISC_APP_H */
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#endif /* ISC_APP_H */
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@@ -805,8 +805,7 @@ isc_socket_sendto2(isc_socket_t *sock, isc_region_t *region,
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/*@}*/
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/*@}*/
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isc_result_t
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isc_result_t
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isc_socketmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
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isc_socketmgr_createinctx(isc_mem_t *mctx, isc_socketmgr_t **managerp);
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isc_socketmgr_t **managerp);
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isc_result_t
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isc_result_t
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isc_socketmgr_create(isc_mem_t *mctx, isc_socketmgr_t **managerp);
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isc_socketmgr_create(isc_mem_t *mctx, isc_socketmgr_t **managerp);
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@@ -630,7 +630,7 @@ isc_task_privilege(isc_task_t *task);
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*****/
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*****/
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isc_result_t
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isc_result_t
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isc_taskmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
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isc_taskmgr_createinctx(isc_mem_t *mctx,
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unsigned int workers, unsigned int default_quantum,
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unsigned int workers, unsigned int default_quantum,
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isc_taskmgr_t **managerp);
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isc_taskmgr_t **managerp);
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isc_result_t
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isc_result_t
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@@ -316,8 +316,7 @@ isc_timer_gettype(isc_timer_t *timer);
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*/
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*/
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isc_result_t
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isc_result_t
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isc_timermgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
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isc_timermgr_createinctx(isc_mem_t *mctx, isc_timermgr_t **managerp);
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isc_timermgr_t **managerp);
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isc_result_t
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isc_result_t
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isc_timermgr_create(isc_mem_t *mctx, isc_timermgr_t **managerp);
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isc_timermgr_create(isc_mem_t *mctx, isc_timermgr_t **managerp);
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@@ -1871,7 +1871,7 @@ isc_taskmgr_renderjson(isc_taskmgr_t *mgr0, json_object *tasks) {
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isc_result_t
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isc_result_t
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isc_taskmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
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isc_taskmgr_createinctx(isc_mem_t *mctx,
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unsigned int workers, unsigned int default_quantum,
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unsigned int workers, unsigned int default_quantum,
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isc_taskmgr_t **managerp)
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isc_taskmgr_t **managerp)
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{
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{
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@@ -1880,8 +1880,5 @@ isc_taskmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
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result = isc_taskmgr_create(mctx, workers, default_quantum,
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result = isc_taskmgr_create(mctx, workers, default_quantum,
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managerp);
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managerp);
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if (result == ISC_R_SUCCESS)
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isc_appctx_settaskmgr(actx, *managerp);
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return (result);
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return (result);
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}
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}
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@@ -784,15 +784,11 @@ isc_timermgr_destroy(isc_timermgr_t **managerp) {
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}
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}
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isc_result_t
|
isc_result_t
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isc_timermgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
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isc_timermgr_createinctx(isc_mem_t *mctx, isc_timermgr_t **managerp)
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isc_timermgr_t **managerp)
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{
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{
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isc_result_t result;
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isc_result_t result;
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|
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result = isc_timermgr_create(mctx, managerp);
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result = isc_timermgr_create(mctx, managerp);
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if (result == ISC_R_SUCCESS)
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isc_appctx_settimermgr(actx, *managerp);
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return (result);
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return (result);
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}
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}
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@@ -27,6 +27,7 @@
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#endif
|
#endif
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#include <isc/platform.h>
|
#include <isc/platform.h>
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|
#include <isc/atomic.h>
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#include <isc/app.h>
|
#include <isc/app.h>
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#include <isc/condition.h>
|
#include <isc/condition.h>
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#include <isc/mem.h>
|
#include <isc/mem.h>
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@@ -48,7 +49,7 @@
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* as an event loop dispatching various events.
|
* as an event loop dispatching various events.
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*/
|
*/
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static pthread_t blockedthread;
|
static pthread_t blockedthread;
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static bool is_running;
|
static atomic_bool is_running;
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|
|
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/*
|
/*
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* The application context of this module. This implementation actually
|
* The application context of this module. This implementation actually
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@@ -57,72 +58,41 @@ static bool is_running;
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#define APPCTX_MAGIC ISC_MAGIC('A', 'p', 'c', 'x')
|
#define APPCTX_MAGIC ISC_MAGIC('A', 'p', 'c', 'x')
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#define VALID_APPCTX(c) ISC_MAGIC_VALID(c, APPCTX_MAGIC)
|
#define VALID_APPCTX(c) ISC_MAGIC_VALID(c, APPCTX_MAGIC)
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|
|
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typedef struct isc__appctx {
|
struct isc_appctx {
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isc_appctx_t common;
|
unsigned int magic;
|
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isc_mem_t *mctx;
|
isc_mem_t *mctx;
|
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isc_mutex_t lock;
|
isc_mutex_t lock;
|
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isc_eventlist_t on_run;
|
isc_eventlist_t on_run;
|
||||||
bool shutdown_requested;
|
atomic_bool shutdown_requested;
|
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bool running;
|
atomic_bool running;
|
||||||
|
atomic_bool want_shutdown;
|
||||||
/*!
|
atomic_bool want_reload;
|
||||||
* We assume that 'want_shutdown' can be read and written atomically.
|
atomic_bool blocked;
|
||||||
*/
|
|
||||||
bool want_shutdown;
|
|
||||||
/*
|
|
||||||
* We assume that 'want_reload' can be read and written atomically.
|
|
||||||
*/
|
|
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bool want_reload;
|
|
||||||
|
|
||||||
bool blocked;
|
|
||||||
|
|
||||||
isc_taskmgr_t *taskmgr;
|
|
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isc_socketmgr_t *socketmgr;
|
|
||||||
isc_timermgr_t *timermgr;
|
|
||||||
isc_mutex_t readylock;
|
isc_mutex_t readylock;
|
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isc_condition_t ready;
|
isc_condition_t ready;
|
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} isc__appctx_t;
|
};
|
||||||
|
|
||||||
static isc__appctx_t isc_g_appctx;
|
static isc_appctx_t isc_g_appctx;
|
||||||
|
|
||||||
#ifndef HAVE_SIGWAIT
|
|
||||||
static void
|
|
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exit_action(int arg) {
|
|
||||||
UNUSED(arg);
|
|
||||||
isc_g_appctx.want_shutdown = true;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void
|
static void
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reload_action(int arg) {
|
|
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UNUSED(arg);
|
|
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isc_g_appctx.want_reload = true;
|
|
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}
|
|
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#endif
|
|
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|
|
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static isc_result_t
|
|
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handle_signal(int sig, void (*handler)(int)) {
|
handle_signal(int sig, void (*handler)(int)) {
|
||||||
struct sigaction sa;
|
struct sigaction sa;
|
||||||
char strbuf[ISC_STRERRORSIZE];
|
|
||||||
|
|
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memset(&sa, 0, sizeof(sa));
|
memset(&sa, 0, sizeof(sa));
|
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sa.sa_handler = handler;
|
sa.sa_handler = handler;
|
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|
|
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if (sigfillset(&sa.sa_mask) != 0 ||
|
if (sigfillset(&sa.sa_mask) != 0 ||
|
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sigaction(sig, &sa, NULL) < 0) {
|
sigaction(sig, &sa, NULL) < 0) {
|
||||||
|
char strbuf[ISC_STRERRORSIZE];
|
||||||
strerror_r(errno, strbuf, sizeof(strbuf));
|
strerror_r(errno, strbuf, sizeof(strbuf));
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
isc_error_fatal(__FILE__, __LINE__,
|
||||||
"handle_signal() %d setup: %s",
|
"handle_signal() %d setup: %s",
|
||||||
sig, strbuf);
|
sig, strbuf);
|
||||||
return (ISC_R_UNEXPECTED);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
return (ISC_R_SUCCESS);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxstart(isc_appctx_t *ctx0) {
|
isc_app_ctxstart(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
isc_result_t result;
|
|
||||||
int presult;
|
int presult;
|
||||||
sigset_t sset;
|
sigset_t sset;
|
||||||
char strbuf[ISC_STRERRORSIZE];
|
char strbuf[ISC_STRERRORSIZE];
|
||||||
@@ -133,64 +103,27 @@ isc_app_ctxstart(isc_appctx_t *ctx0) {
|
|||||||
* Start an ISC library application.
|
* Start an ISC library application.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
isc_mutex_init(&ctx->readylock);
|
|
||||||
|
|
||||||
isc_condition_init(&ctx->ready);
|
|
||||||
|
|
||||||
isc_mutex_init(&ctx->lock);
|
isc_mutex_init(&ctx->lock);
|
||||||
|
|
||||||
|
isc_mutex_init(&ctx->readylock);
|
||||||
|
isc_condition_init(&ctx->ready);
|
||||||
|
|
||||||
ISC_LIST_INIT(ctx->on_run);
|
ISC_LIST_INIT(ctx->on_run);
|
||||||
|
|
||||||
ctx->shutdown_requested = false;
|
atomic_init(&ctx->shutdown_requested, false);
|
||||||
ctx->running = false;
|
atomic_init(&ctx->running, false);
|
||||||
ctx->want_shutdown = false;
|
atomic_init(&ctx->want_shutdown, false);
|
||||||
ctx->want_reload = false;
|
atomic_init(&ctx->want_reload, false);
|
||||||
ctx->blocked = false;
|
atomic_init(&ctx->blocked, false);
|
||||||
|
|
||||||
#ifndef HAVE_SIGWAIT
|
|
||||||
/*
|
|
||||||
* Install do-nothing handlers for SIGINT and SIGTERM.
|
|
||||||
*
|
|
||||||
* We install them now because BSDI 3.1 won't block
|
|
||||||
* the default actions, regardless of what we do with
|
|
||||||
* pthread_sigmask().
|
|
||||||
*/
|
|
||||||
result = handle_signal(SIGINT, exit_action);
|
|
||||||
if (result != ISC_R_SUCCESS)
|
|
||||||
goto cleanup;
|
|
||||||
result = handle_signal(SIGTERM, exit_action);
|
|
||||||
if (result != ISC_R_SUCCESS)
|
|
||||||
goto cleanup;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Always ignore SIGPIPE.
|
* Always ignore SIGPIPE.
|
||||||
*/
|
*/
|
||||||
result = handle_signal(SIGPIPE, SIG_IGN);
|
handle_signal(SIGPIPE, SIG_IGN);
|
||||||
if (result != ISC_R_SUCCESS)
|
|
||||||
goto cleanup;
|
|
||||||
|
|
||||||
/*
|
handle_signal(SIGHUP, SIG_DFL);
|
||||||
* On Solaris 2, delivery of a signal whose action is SIG_IGN
|
handle_signal(SIGTERM, SIG_DFL);
|
||||||
* will not cause sigwait() to return. We may have inherited
|
handle_signal(SIGINT, SIG_DFL);
|
||||||
* unexpected actions for SIGHUP, SIGINT, and SIGTERM from our parent
|
|
||||||
* process (e.g, Solaris cron). Set an action of SIG_DFL to make
|
|
||||||
* sure sigwait() works as expected. Only do this for SIGTERM and
|
|
||||||
* SIGINT if we don't have sigwait(), since a different handler is
|
|
||||||
* installed above.
|
|
||||||
*/
|
|
||||||
result = handle_signal(SIGHUP, SIG_DFL);
|
|
||||||
if (result != ISC_R_SUCCESS)
|
|
||||||
goto cleanup;
|
|
||||||
|
|
||||||
#ifdef HAVE_SIGWAIT
|
|
||||||
result = handle_signal(SIGTERM, SIG_DFL);
|
|
||||||
if (result != ISC_R_SUCCESS)
|
|
||||||
goto cleanup;
|
|
||||||
result = handle_signal(SIGINT, SIG_DFL);
|
|
||||||
if (result != ISC_R_SUCCESS)
|
|
||||||
goto cleanup;
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Block SIGHUP, SIGINT, SIGTERM.
|
* Block SIGHUP, SIGINT, SIGTERM.
|
||||||
@@ -206,61 +139,45 @@ isc_app_ctxstart(isc_appctx_t *ctx0) {
|
|||||||
sigaddset(&sset, SIGINT) != 0 ||
|
sigaddset(&sset, SIGINT) != 0 ||
|
||||||
sigaddset(&sset, SIGTERM) != 0) {
|
sigaddset(&sset, SIGTERM) != 0) {
|
||||||
strerror_r(errno, strbuf, sizeof(strbuf));
|
strerror_r(errno, strbuf, sizeof(strbuf));
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
isc_error_fatal(__FILE__, __LINE__,
|
||||||
"isc_app_start() sigsetops: %s", strbuf);
|
"isc_app_start() sigsetops: %s", strbuf);
|
||||||
result = ISC_R_UNEXPECTED;
|
|
||||||
goto cleanup;
|
|
||||||
}
|
}
|
||||||
presult = pthread_sigmask(SIG_BLOCK, &sset, NULL);
|
presult = pthread_sigmask(SIG_BLOCK, &sset, NULL);
|
||||||
if (presult != 0) {
|
if (presult != 0) {
|
||||||
strerror_r(presult, strbuf, sizeof(strbuf));
|
strerror_r(presult, strbuf, sizeof(strbuf));
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
isc_error_fatal(__FILE__, __LINE__,
|
||||||
"isc_app_start() pthread_sigmask: %s",
|
"isc_app_start() pthread_sigmask: %s",
|
||||||
strbuf);
|
strbuf);
|
||||||
result = ISC_R_UNEXPECTED;
|
|
||||||
goto cleanup;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
return (ISC_R_SUCCESS);
|
return (ISC_R_SUCCESS);
|
||||||
|
|
||||||
cleanup:
|
|
||||||
(void)isc_condition_destroy(&ctx->ready);
|
|
||||||
(void)isc_mutex_destroy(&ctx->readylock);
|
|
||||||
return (result);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_start(void) {
|
isc_app_start(void) {
|
||||||
isc_g_appctx.common.impmagic = APPCTX_MAGIC;
|
isc_g_appctx.magic = APPCTX_MAGIC;
|
||||||
isc_g_appctx.common.magic = ISCAPI_APPCTX_MAGIC;
|
|
||||||
isc_g_appctx.mctx = NULL;
|
isc_g_appctx.mctx = NULL;
|
||||||
/* The remaining members will be initialized in ctxstart() */
|
/* The remaining members will be initialized in ctxstart() */
|
||||||
|
|
||||||
return (isc_app_ctxstart((isc_appctx_t *)&isc_g_appctx));
|
return (isc_app_ctxstart(&isc_g_appctx));
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_onrun(isc_mem_t *mctx, isc_task_t *task, isc_taskaction_t action,
|
isc_app_onrun(isc_mem_t *mctx, isc_task_t *task, isc_taskaction_t action,
|
||||||
void *arg)
|
void *arg)
|
||||||
{
|
{
|
||||||
return (isc_app_ctxonrun((isc_appctx_t *)&isc_g_appctx, mctx,
|
return (isc_app_ctxonrun(&isc_g_appctx, mctx, task, action, arg));
|
||||||
task, action, arg));
|
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxonrun(isc_appctx_t *ctx0, isc_mem_t *mctx, isc_task_t *task,
|
isc_app_ctxonrun(isc_appctx_t *ctx, isc_mem_t *mctx, isc_task_t *task,
|
||||||
isc_taskaction_t action, void *arg)
|
isc_taskaction_t action, void *arg)
|
||||||
{
|
{
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
isc_event_t *event;
|
isc_event_t *event;
|
||||||
isc_task_t *cloned_task = NULL;
|
isc_task_t *cloned_task = NULL;
|
||||||
isc_result_t result;
|
|
||||||
|
|
||||||
LOCK(&ctx->lock);
|
if (atomic_load_acquire(&ctx->running)) {
|
||||||
|
return (ISC_R_ALREADYRUNNING);
|
||||||
if (ctx->running) {
|
|
||||||
result = ISC_R_ALREADYRUNNING;
|
|
||||||
goto unlock;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
@@ -272,42 +189,34 @@ isc_app_ctxonrun(isc_appctx_t *ctx0, isc_mem_t *mctx, isc_task_t *task,
|
|||||||
action, arg, sizeof(*event));
|
action, arg, sizeof(*event));
|
||||||
if (event == NULL) {
|
if (event == NULL) {
|
||||||
isc_task_detach(&cloned_task);
|
isc_task_detach(&cloned_task);
|
||||||
result = ISC_R_NOMEMORY;
|
return (ISC_R_NOMEMORY);
|
||||||
goto unlock;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
LOCK(&ctx->lock);
|
||||||
ISC_LIST_APPEND(ctx->on_run, event, ev_link);
|
ISC_LIST_APPEND(ctx->on_run, event, ev_link);
|
||||||
|
|
||||||
result = ISC_R_SUCCESS;
|
|
||||||
|
|
||||||
unlock:
|
|
||||||
UNLOCK(&ctx->lock);
|
UNLOCK(&ctx->lock);
|
||||||
|
|
||||||
return (result);
|
return (ISC_R_SUCCESS);
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxrun(isc_appctx_t *ctx0) {
|
isc_app_ctxrun(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
int result;
|
|
||||||
isc_event_t *event, *next_event;
|
isc_event_t *event, *next_event;
|
||||||
isc_task_t *task;
|
isc_task_t *task;
|
||||||
sigset_t sset;
|
sigset_t sset;
|
||||||
char strbuf[ISC_STRERRORSIZE];
|
|
||||||
#ifdef HAVE_SIGWAIT
|
|
||||||
int sig;
|
int sig;
|
||||||
#endif /* HAVE_SIGWAIT */
|
bool exp_false = false;
|
||||||
|
bool exp_true = true;
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
|
|
||||||
LOCK(&ctx->lock);
|
if (atomic_compare_exchange_weak_acq_rel(
|
||||||
|
&ctx->running, &exp_false, true) == true)
|
||||||
if (!ctx->running) {
|
{
|
||||||
ctx->running = true;
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Post any on-run events (in FIFO order).
|
* Post any on-run events (in FIFO order).
|
||||||
*/
|
*/
|
||||||
|
LOCK(&ctx->lock);
|
||||||
for (event = ISC_LIST_HEAD(ctx->on_run);
|
for (event = ISC_LIST_HEAD(ctx->on_run);
|
||||||
event != NULL;
|
event != NULL;
|
||||||
event = next_event) {
|
event = next_event) {
|
||||||
@@ -317,17 +226,15 @@ isc_app_ctxrun(isc_appctx_t *ctx0) {
|
|||||||
event->ev_sender = NULL;
|
event->ev_sender = NULL;
|
||||||
isc_task_sendanddetach(&task, &event);
|
isc_task_sendanddetach(&task, &event);
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
UNLOCK(&ctx->lock);
|
UNLOCK(&ctx->lock);
|
||||||
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* BIND9 internal tools using multiple contexts do not
|
* BIND9 internal tools using multiple contexts do not
|
||||||
* rely on signal.
|
* rely on signal. */
|
||||||
*/
|
if (isc_bind9 && ctx != &isc_g_appctx) {
|
||||||
if (isc_bind9 && ctx != &isc_g_appctx)
|
|
||||||
return (ISC_R_SUCCESS);
|
return (ISC_R_SUCCESS);
|
||||||
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* There is no danger if isc_app_shutdown() is called before we
|
* There is no danger if isc_app_shutdown() is called before we
|
||||||
@@ -335,8 +242,7 @@ isc_app_ctxrun(isc_appctx_t *ctx0) {
|
|||||||
* simply be made pending and we will get it when we call
|
* simply be made pending and we will get it when we call
|
||||||
* sigwait().
|
* sigwait().
|
||||||
*/
|
*/
|
||||||
while (!ctx->want_shutdown) {
|
while (atomic_load_acquire(&ctx->want_shutdown) == false) {
|
||||||
#ifdef HAVE_SIGWAIT
|
|
||||||
if (isc_bind9) {
|
if (isc_bind9) {
|
||||||
/*
|
/*
|
||||||
* BIND9 internal; single context:
|
* BIND9 internal; single context:
|
||||||
@@ -346,89 +252,57 @@ isc_app_ctxrun(isc_appctx_t *ctx0) {
|
|||||||
sigaddset(&sset, SIGHUP) != 0 ||
|
sigaddset(&sset, SIGHUP) != 0 ||
|
||||||
sigaddset(&sset, SIGINT) != 0 ||
|
sigaddset(&sset, SIGINT) != 0 ||
|
||||||
sigaddset(&sset, SIGTERM) != 0) {
|
sigaddset(&sset, SIGTERM) != 0) {
|
||||||
|
char strbuf[ISC_STRERRORSIZE];
|
||||||
strerror_r(errno, strbuf, sizeof(strbuf));
|
strerror_r(errno, strbuf, sizeof(strbuf));
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
isc_error_fatal(__FILE__, __LINE__,
|
||||||
"isc_app_run() sigsetops: %s",
|
"isc_app_run() sigsetops: %s",
|
||||||
strbuf);
|
strbuf);
|
||||||
return (ISC_R_UNEXPECTED);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
result = sigwait(&sset, &sig);
|
if (sigwait(&sset, &sig) == 0) {
|
||||||
if (result == 0) {
|
switch (sig) {
|
||||||
if (sig == SIGINT || sig == SIGTERM)
|
case SIGINT:
|
||||||
ctx->want_shutdown = true;
|
case SIGTERM:
|
||||||
else if (sig == SIGHUP)
|
atomic_store_release(
|
||||||
ctx->want_reload = true;
|
&ctx->want_shutdown, true);
|
||||||
|
break;
|
||||||
|
case SIGHUP:
|
||||||
|
atomic_store_release(
|
||||||
|
&ctx->want_reload, true);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
INSIST(0);
|
||||||
|
ISC_UNREACHABLE();
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
} else {
|
} else {
|
||||||
/*
|
/*
|
||||||
* External, or BIND9 using multiple contexts:
|
* External, or BIND9 using multiple contexts:
|
||||||
* wait until woken up.
|
* wait until woken up.
|
||||||
*/
|
*/
|
||||||
LOCK(&ctx->readylock);
|
if (atomic_load_acquire(&ctx->want_shutdown)) {
|
||||||
if (ctx->want_shutdown) {
|
|
||||||
/* shutdown() won the race. */
|
|
||||||
UNLOCK(&ctx->readylock);
|
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
if (!ctx->want_reload)
|
if (!atomic_load_acquire(&ctx->want_reload)) {
|
||||||
|
LOCK(&ctx->readylock);
|
||||||
WAIT(&ctx->ready, &ctx->readylock);
|
WAIT(&ctx->ready, &ctx->readylock);
|
||||||
UNLOCK(&ctx->readylock);
|
UNLOCK(&ctx->readylock);
|
||||||
}
|
}
|
||||||
#else /* Don't have sigwait(). */
|
}
|
||||||
if (isc_bind9) {
|
|
||||||
/*
|
|
||||||
* BIND9 internal; single context:
|
|
||||||
* Install a signal handler for SIGHUP, then wait for
|
|
||||||
* all signals.
|
|
||||||
*/
|
|
||||||
result = handle_signal(SIGHUP, reload_action);
|
|
||||||
if (result != ISC_R_SUCCESS)
|
|
||||||
return (ISC_R_SUCCESS);
|
|
||||||
|
|
||||||
if (sigemptyset(&sset) != 0) {
|
exp_true = true;
|
||||||
strerror_r(errno, strbuf, sizeof(strbuf));
|
if (atomic_compare_exchange_weak_acq_rel(&ctx->want_reload,
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
&exp_true,
|
||||||
"isc_app_run() sigsetops: %s",
|
false))
|
||||||
strbuf);
|
{
|
||||||
return (ISC_R_UNEXPECTED);
|
|
||||||
}
|
|
||||||
#ifdef HAVE_GPERFTOOLS_PROFILER
|
|
||||||
if (sigaddset(&sset, SIGALRM) != 0) {
|
|
||||||
strerror_r(errno, strbuf, sizeof(strbuf));
|
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
|
||||||
"isc_app_run() sigsetops: %s",
|
|
||||||
strbuf);
|
|
||||||
return (ISC_R_UNEXPECTED);
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
(void)sigsuspend(&sset);
|
|
||||||
} else {
|
|
||||||
/*
|
|
||||||
* External, or BIND9 using multiple contexts:
|
|
||||||
* wait until woken up.
|
|
||||||
*/
|
|
||||||
LOCK(&ctx->readylock);
|
|
||||||
if (ctx->want_shutdown) {
|
|
||||||
/* shutdown() won the race. */
|
|
||||||
UNLOCK(&ctx->readylock);
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
if (!ctx->want_reload)
|
|
||||||
WAIT(&ctx->ready, &ctx->readylock);
|
|
||||||
UNLOCK(&ctx->readylock);
|
|
||||||
}
|
|
||||||
#endif /* HAVE_SIGWAIT */
|
|
||||||
|
|
||||||
if (ctx->want_reload) {
|
|
||||||
ctx->want_reload = false;
|
|
||||||
return (ISC_R_RELOAD);
|
return (ISC_R_RELOAD);
|
||||||
}
|
}
|
||||||
|
|
||||||
if (ctx->want_shutdown && ctx->blocked)
|
if (atomic_load_acquire(&ctx->want_shutdown) &&
|
||||||
|
atomic_load_acquire(&ctx->blocked)) {
|
||||||
exit(1);
|
exit(1);
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
return (ISC_R_SUCCESS);
|
return (ISC_R_SUCCESS);
|
||||||
}
|
}
|
||||||
@@ -436,139 +310,113 @@ isc_app_ctxrun(isc_appctx_t *ctx0) {
|
|||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_run(void) {
|
isc_app_run(void) {
|
||||||
isc_result_t result;
|
isc_result_t result;
|
||||||
|
bool exp_false = false;
|
||||||
|
|
||||||
is_running = true;
|
REQUIRE(atomic_compare_exchange_weak_acq_rel(
|
||||||
result = isc_app_ctxrun((isc_appctx_t *)&isc_g_appctx);
|
&is_running, &exp_false, true) == true);
|
||||||
is_running = false;
|
result = isc_app_ctxrun(&isc_g_appctx);
|
||||||
|
atomic_store_release(&is_running, false);
|
||||||
|
|
||||||
return (result);
|
return (result);
|
||||||
}
|
}
|
||||||
|
|
||||||
bool
|
bool
|
||||||
isc_app_isrunning() {
|
isc_app_isrunning() {
|
||||||
return (is_running);
|
return (atomic_load_acquire(&is_running));
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
void
|
||||||
isc_app_ctxshutdown(isc_appctx_t *ctx0) {
|
isc_app_ctxshutdown(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
bool exp_false = false;
|
||||||
bool want_kill = true;
|
|
||||||
char strbuf[ISC_STRERRORSIZE];
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
|
|
||||||
LOCK(&ctx->lock);
|
REQUIRE(atomic_load_acquire(&ctx->running));
|
||||||
|
|
||||||
REQUIRE(ctx->running);
|
/* If ctx->shutdown_requested == true, we are already shutting
|
||||||
|
* down and we want to just bail out.
|
||||||
if (ctx->shutdown_requested)
|
*/
|
||||||
want_kill = false;
|
if (atomic_compare_exchange_weak_acq_rel(
|
||||||
else
|
&ctx->shutdown_requested,
|
||||||
ctx->shutdown_requested = true;
|
&exp_false,
|
||||||
|
true))
|
||||||
UNLOCK(&ctx->lock);
|
{
|
||||||
|
if (isc_bind9 && ctx != &isc_g_appctx) {
|
||||||
if (want_kill) {
|
|
||||||
if (isc_bind9 && ctx != &isc_g_appctx)
|
|
||||||
/* BIND9 internal, but using multiple contexts */
|
/* BIND9 internal, but using multiple contexts */
|
||||||
ctx->want_shutdown = true;
|
atomic_store_release(&ctx->want_shutdown, true);
|
||||||
else {
|
} else if (isc_bind9) {
|
||||||
if (isc_bind9) {
|
|
||||||
/* BIND9 internal, single context */
|
/* BIND9 internal, single context */
|
||||||
if (kill(getpid(), SIGTERM) < 0) {
|
if (kill(getpid(), SIGTERM) < 0) {
|
||||||
|
char strbuf[ISC_STRERRORSIZE];
|
||||||
strerror_r(errno,
|
strerror_r(errno,
|
||||||
strbuf, sizeof(strbuf));
|
strbuf, sizeof(strbuf));
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
isc_error_fatal(__FILE__, __LINE__,
|
||||||
"isc_app_shutdown() "
|
"isc_app_shutdown() "
|
||||||
"kill: %s", strbuf);
|
"kill: %s", strbuf);
|
||||||
return (ISC_R_UNEXPECTED);
|
|
||||||
}
|
}
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/* External, multiple contexts */
|
/* External, multiple contexts */
|
||||||
LOCK(&ctx->readylock);
|
atomic_store_release(&ctx->want_shutdown, true);
|
||||||
ctx->want_shutdown = true;
|
|
||||||
UNLOCK(&ctx->readylock);
|
|
||||||
SIGNAL(&ctx->ready);
|
SIGNAL(&ctx->ready);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
||||||
return (ISC_R_SUCCESS);
|
void
|
||||||
}
|
|
||||||
|
|
||||||
isc_result_t
|
|
||||||
isc_app_shutdown(void) {
|
isc_app_shutdown(void) {
|
||||||
return (isc_app_ctxshutdown((isc_appctx_t *)&isc_g_appctx));
|
isc_app_ctxshutdown(&isc_g_appctx);
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
void
|
||||||
isc_app_ctxsuspend(isc_appctx_t *ctx0) {
|
isc_app_ctxsuspend(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
bool want_kill = true;
|
|
||||||
char strbuf[ISC_STRERRORSIZE];
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
|
|
||||||
LOCK(&ctx->lock);
|
REQUIRE(atomic_load(&ctx->running));
|
||||||
|
|
||||||
REQUIRE(ctx->running);
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Don't send the reload signal if we're shutting down.
|
* Don't send the reload signal if we're shutting down.
|
||||||
*/
|
*/
|
||||||
if (ctx->shutdown_requested)
|
if (atomic_load_acquire(&ctx->shutdown_requested) == false) {
|
||||||
want_kill = false;
|
if (isc_bind9 && ctx != &isc_g_appctx) {
|
||||||
|
|
||||||
UNLOCK(&ctx->lock);
|
|
||||||
|
|
||||||
if (want_kill) {
|
|
||||||
if (isc_bind9 && ctx != &isc_g_appctx)
|
|
||||||
/* BIND9 internal, but using multiple contexts */
|
/* BIND9 internal, but using multiple contexts */
|
||||||
ctx->want_reload = true;
|
atomic_store_release(&ctx->want_reload, true);
|
||||||
else {
|
} else if (isc_bind9) {
|
||||||
ctx->want_reload = true;
|
|
||||||
if (isc_bind9) {
|
|
||||||
/* BIND9 internal, single context */
|
/* BIND9 internal, single context */
|
||||||
if (kill(getpid(), SIGHUP) < 0) {
|
if (kill(getpid(), SIGHUP) < 0) {
|
||||||
|
char strbuf[ISC_STRERRORSIZE];
|
||||||
strerror_r(errno,
|
strerror_r(errno,
|
||||||
strbuf, sizeof(strbuf));
|
strbuf, sizeof(strbuf));
|
||||||
UNEXPECTED_ERROR(__FILE__, __LINE__,
|
isc_error_fatal(__FILE__, __LINE__,
|
||||||
"isc_app_reload() "
|
"isc_app_reload() "
|
||||||
"kill: %s", strbuf);
|
"kill: %s", strbuf);
|
||||||
return (ISC_R_UNEXPECTED);
|
|
||||||
}
|
}
|
||||||
}
|
} else {
|
||||||
else {
|
|
||||||
/* External, multiple contexts */
|
/* External, multiple contexts */
|
||||||
LOCK(&ctx->readylock);
|
atomic_store_release(&ctx->want_reload, true);
|
||||||
ctx->want_reload = true;
|
|
||||||
UNLOCK(&ctx->readylock);
|
|
||||||
SIGNAL(&ctx->ready);
|
SIGNAL(&ctx->ready);
|
||||||
}
|
}
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return (ISC_R_SUCCESS);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
|
||||||
isc_app_reload(void) {
|
|
||||||
return (isc_app_ctxsuspend((isc_appctx_t *)&isc_g_appctx));
|
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
isc_app_ctxfinish(isc_appctx_t *ctx0) {
|
isc_app_reload(void) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
return (isc_app_ctxsuspend(&isc_g_appctx));
|
||||||
|
}
|
||||||
|
|
||||||
|
void
|
||||||
|
isc_app_ctxfinish(isc_appctx_t *ctx) {
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
|
|
||||||
isc_mutex_destroy(&ctx->lock);
|
isc_mutex_destroy(&ctx->lock);
|
||||||
|
isc_mutex_destroy(&ctx->readylock);
|
||||||
|
isc_condition_destroy(&ctx->ready);
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
isc_app_finish(void) {
|
isc_app_finish(void) {
|
||||||
isc_app_ctxfinish((isc_appctx_t *)&isc_g_appctx);
|
isc_app_ctxfinish(&isc_g_appctx);
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
@@ -577,7 +425,7 @@ isc_app_block(void) {
|
|||||||
REQUIRE(isc_g_appctx.running);
|
REQUIRE(isc_g_appctx.running);
|
||||||
REQUIRE(!isc_g_appctx.blocked);
|
REQUIRE(!isc_g_appctx.blocked);
|
||||||
|
|
||||||
isc_g_appctx.blocked = true;
|
atomic_store_release(&isc_g_appctx.blocked, true);
|
||||||
blockedthread = pthread_self();
|
blockedthread = pthread_self();
|
||||||
RUNTIME_CHECK(sigemptyset(&sset) == 0 &&
|
RUNTIME_CHECK(sigemptyset(&sset) == 0 &&
|
||||||
sigaddset(&sset, SIGINT) == 0 &&
|
sigaddset(&sset, SIGINT) == 0 &&
|
||||||
@@ -588,11 +436,13 @@ isc_app_block(void) {
|
|||||||
void
|
void
|
||||||
isc_app_unblock(void) {
|
isc_app_unblock(void) {
|
||||||
sigset_t sset;
|
sigset_t sset;
|
||||||
|
bool exp_true = true;
|
||||||
|
|
||||||
REQUIRE(isc_g_appctx.running);
|
REQUIRE(atomic_load_acquire(&isc_g_appctx.running));
|
||||||
REQUIRE(isc_g_appctx.blocked);
|
REQUIRE(atomic_compare_exchange_weak_acq_rel(
|
||||||
|
&isc_g_appctx.blocked,
|
||||||
isc_g_appctx.blocked = false;
|
&exp_true,
|
||||||
|
false));
|
||||||
|
|
||||||
REQUIRE(blockedthread == pthread_self());
|
REQUIRE(blockedthread == pthread_self());
|
||||||
|
|
||||||
@@ -604,7 +454,7 @@ isc_app_unblock(void) {
|
|||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_appctx_create(isc_mem_t *mctx, isc_appctx_t **ctxp) {
|
isc_appctx_create(isc_mem_t *mctx, isc_appctx_t **ctxp) {
|
||||||
isc__appctx_t *ctx;
|
isc_appctx_t *ctx;
|
||||||
|
|
||||||
REQUIRE(mctx != NULL);
|
REQUIRE(mctx != NULL);
|
||||||
REQUIRE(ctxp != NULL && *ctxp == NULL);
|
REQUIRE(ctxp != NULL && *ctxp == NULL);
|
||||||
@@ -613,57 +463,26 @@ isc_appctx_create(isc_mem_t *mctx, isc_appctx_t **ctxp) {
|
|||||||
if (ctx == NULL)
|
if (ctx == NULL)
|
||||||
return (ISC_R_NOMEMORY);
|
return (ISC_R_NOMEMORY);
|
||||||
|
|
||||||
ctx->common.impmagic = APPCTX_MAGIC;
|
ctx->magic = APPCTX_MAGIC;
|
||||||
ctx->common.magic = ISCAPI_APPCTX_MAGIC;
|
|
||||||
|
|
||||||
ctx->mctx = NULL;
|
ctx->mctx = NULL;
|
||||||
isc_mem_attach(mctx, &ctx->mctx);
|
isc_mem_attach(mctx, &ctx->mctx);
|
||||||
|
|
||||||
ctx->taskmgr = NULL;
|
*ctxp = ctx;
|
||||||
ctx->socketmgr = NULL;
|
|
||||||
ctx->timermgr = NULL;
|
|
||||||
|
|
||||||
*ctxp = (isc_appctx_t *)ctx;
|
|
||||||
|
|
||||||
return (ISC_R_SUCCESS);
|
return (ISC_R_SUCCESS);
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
isc_appctx_destroy(isc_appctx_t **ctxp) {
|
isc_appctx_destroy(isc_appctx_t **ctxp) {
|
||||||
isc__appctx_t *ctx;
|
isc_appctx_t *ctx;
|
||||||
|
|
||||||
REQUIRE(ctxp != NULL);
|
REQUIRE(ctxp != NULL);
|
||||||
ctx = (isc__appctx_t *)*ctxp;
|
ctx = *ctxp;
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
|
*ctxp = NULL;
|
||||||
|
|
||||||
|
ctx->magic = 0;
|
||||||
|
|
||||||
isc_mem_putanddetach(&ctx->mctx, ctx, sizeof(*ctx));
|
isc_mem_putanddetach(&ctx->mctx, ctx, sizeof(*ctx));
|
||||||
|
|
||||||
*ctxp = NULL;
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
isc_appctx_settaskmgr(isc_appctx_t *ctx0, isc_taskmgr_t *taskmgr) {
|
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
|
||||||
|
|
||||||
ctx->taskmgr = taskmgr;
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
isc_appctx_setsocketmgr(isc_appctx_t *ctx0, isc_socketmgr_t *socketmgr) {
|
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
|
||||||
|
|
||||||
ctx->socketmgr = socketmgr;
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
isc_appctx_settimermgr(isc_appctx_t *ctx0, isc_timermgr_t *timermgr) {
|
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
|
||||||
|
|
||||||
ctx->timermgr = timermgr;
|
|
||||||
}
|
}
|
||||||
|
@@ -5608,15 +5608,11 @@ isc_socketmgr_renderjson(isc_socketmgr_t *mgr0, json_object *stats) {
|
|||||||
#endif /* HAVE_JSON */
|
#endif /* HAVE_JSON */
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_socketmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
|
isc_socketmgr_createinctx(isc_mem_t *mctx, isc_socketmgr_t **managerp)
|
||||||
isc_socketmgr_t **managerp)
|
|
||||||
{
|
{
|
||||||
isc_result_t result;
|
isc_result_t result;
|
||||||
|
|
||||||
result = isc_socketmgr_create(mctx, managerp);
|
result = isc_socketmgr_create(mctx, managerp);
|
||||||
|
|
||||||
if (result == ISC_R_SUCCESS)
|
|
||||||
isc_appctx_setsocketmgr(actx, *managerp);
|
|
||||||
|
|
||||||
return (result);
|
return (result);
|
||||||
}
|
}
|
||||||
|
@@ -50,7 +50,7 @@ enum {
|
|||||||
SHUTDOWN_EVENT
|
SHUTDOWN_EVENT
|
||||||
};
|
};
|
||||||
|
|
||||||
typedef struct isc__appctx {
|
struct isc_appctx {
|
||||||
isc_appctx_t common;
|
isc_appctx_t common;
|
||||||
isc_mem_t *mctx;
|
isc_mem_t *mctx;
|
||||||
isc_eventlist_t on_run;
|
isc_eventlist_t on_run;
|
||||||
@@ -69,13 +69,9 @@ typedef struct isc__appctx {
|
|||||||
bool blocked;
|
bool blocked;
|
||||||
|
|
||||||
HANDLE hEvents[NUM_EVENTS];
|
HANDLE hEvents[NUM_EVENTS];
|
||||||
|
};
|
||||||
|
|
||||||
isc_taskmgr_t *taskmgr;
|
static isc_appctx_t isc_g_appctx;
|
||||||
isc_socketmgr_t *socketmgr;
|
|
||||||
isc_timermgr_t *timermgr;
|
|
||||||
} isc__appctx_t;
|
|
||||||
|
|
||||||
static isc__appctx_t isc_g_appctx;
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* We need to remember which thread is the main thread...
|
* We need to remember which thread is the main thread...
|
||||||
@@ -83,8 +79,7 @@ static isc__appctx_t isc_g_appctx;
|
|||||||
static isc_thread_t main_thread;
|
static isc_thread_t main_thread;
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxstart(isc_appctx_t *ctx0) {
|
isc_app_ctxstart(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
isc_result_t result;
|
isc_result_t result;
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
@@ -115,27 +110,24 @@ isc_app_ctxstart(isc_appctx_t *ctx0) {
|
|||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_start(void) {
|
isc_app_start(void) {
|
||||||
isc_g_appctx.common.impmagic = APPCTX_MAGIC;
|
isc_g_appctx.magic = APPCTX_MAGIC;
|
||||||
isc_g_appctx.common.magic = ISCAPI_APPCTX_MAGIC;
|
|
||||||
isc_g_appctx.mctx = NULL;
|
isc_g_appctx.mctx = NULL;
|
||||||
/* The remaining members will be initialized in ctxstart() */
|
/* The remaining members will be initialized in ctxstart() */
|
||||||
|
|
||||||
return (isc_app_ctxstart((isc_appctx_t *)&isc_g_appctx));
|
return (isc_app_ctxstart(&isc_g_appctx));
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_onrun(isc_mem_t *mctx, isc_task_t *task, isc_taskaction_t action,
|
isc_app_onrun(isc_mem_t *mctx, isc_task_t *task, isc_taskaction_t action,
|
||||||
void *arg)
|
void *arg)
|
||||||
{
|
{
|
||||||
return (isc_app_ctxonrun((isc_appctx_t *)&isc_g_appctx, mctx,
|
return (isc_app_ctxonrun(&isc_g_appctx, mctx, task, action, arg));
|
||||||
task, action, arg));
|
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxonrun(isc_appctx_t *ctx0, isc_mem_t *mctx, isc_task_t *task,
|
isc_app_ctxonrun(isc_appctx_t *ctx, isc_mem_t *mctx, isc_task_t *task,
|
||||||
isc_taskaction_t action, void *arg)
|
isc_taskaction_t action, void *arg)
|
||||||
{
|
{
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
isc_event_t *event;
|
isc_event_t *event;
|
||||||
isc_task_t *cloned_task = NULL;
|
isc_task_t *cloned_task = NULL;
|
||||||
isc_result_t result;
|
isc_result_t result;
|
||||||
@@ -171,8 +163,7 @@ isc_app_ctxonrun(isc_appctx_t *ctx0, isc_mem_t *mctx, isc_task_t *task,
|
|||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxrun(isc_appctx_t *ctx0) {
|
isc_app_ctxrun(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
isc_event_t *event, *next_event;
|
isc_event_t *event, *next_event;
|
||||||
isc_task_t *task;
|
isc_task_t *task;
|
||||||
HANDLE *pHandles = NULL;
|
HANDLE *pHandles = NULL;
|
||||||
@@ -248,7 +239,7 @@ isc_app_run(void) {
|
|||||||
isc_result_t result;
|
isc_result_t result;
|
||||||
|
|
||||||
is_running = true;
|
is_running = true;
|
||||||
result = isc_app_ctxrun((isc_appctx_t *)&isc_g_appctx);
|
result = isc_app_ctxrun(&isc_g_appctx);
|
||||||
is_running = false;
|
is_running = false;
|
||||||
|
|
||||||
return (result);
|
return (result);
|
||||||
@@ -260,8 +251,7 @@ isc_app_isrunning() {
|
|||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxshutdown(isc_appctx_t *ctx0) {
|
isc_app_ctxshutdown(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
bool want_kill = true;
|
bool want_kill = true;
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
@@ -285,12 +275,11 @@ isc_app_ctxshutdown(isc_appctx_t *ctx0) {
|
|||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_shutdown(void) {
|
isc_app_shutdown(void) {
|
||||||
return (isc_app_ctxshutdown((isc_appctx_t *)&isc_g_appctx));
|
return (isc_app_ctxshutdown(&isc_g_appctx));
|
||||||
}
|
}
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_ctxsuspend(isc_appctx_t *ctx0) {
|
isc_app_ctxsuspend(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
bool want_kill = true;
|
bool want_kill = true;
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
@@ -315,13 +304,11 @@ isc_app_ctxsuspend(isc_appctx_t *ctx0) {
|
|||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_app_reload(void) {
|
isc_app_reload(void) {
|
||||||
return (isc_app_ctxsuspend((isc_appctx_t *)&isc_g_appctx));
|
return (isc_app_ctxsuspend(&isc_g_appctx));
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
isc_app_ctxfinish(isc_appctx_t *ctx0) {
|
isc_app_ctxfinish(isc_appctx_t *ctx) {
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
REQUIRE(VALID_APPCTX(ctx));
|
||||||
|
|
||||||
isc_mutex_destroy(&ctx->lock);
|
isc_mutex_destroy(&ctx->lock);
|
||||||
@@ -329,7 +316,7 @@ isc_app_ctxfinish(isc_appctx_t *ctx0) {
|
|||||||
|
|
||||||
void
|
void
|
||||||
isc_app_finish(void) {
|
isc_app_finish(void) {
|
||||||
isc_app_ctxfinish((isc_appctx_t *)&isc_g_appctx);
|
isc_app_ctxfinish(&isc_g_appctx);
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
@@ -352,33 +339,26 @@ isc_app_unblock(void) {
|
|||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_appctx_create(isc_mem_t *mctx, isc_appctx_t **ctxp) {
|
isc_appctx_create(isc_mem_t *mctx, isc_appctx_t **ctxp) {
|
||||||
isc__appctx_t *ctx;
|
isc_appctx_t *ctx;
|
||||||
|
|
||||||
REQUIRE(mctx != NULL);
|
REQUIRE(mctx != NULL);
|
||||||
REQUIRE(ctxp != NULL && *ctxp == NULL);
|
REQUIRE(ctxp != NULL && *ctxp == NULL);
|
||||||
|
|
||||||
ctx = isc_mem_get(mctx, sizeof(*ctx));
|
ctx = isc_mem_get(mctx, sizeof(*ctx));
|
||||||
if (ctx == NULL)
|
|
||||||
return (ISC_R_NOMEMORY);
|
|
||||||
|
|
||||||
ctx->common.impmagic = APPCTX_MAGIC;
|
ctx->magic = APPCTX_MAGIC;
|
||||||
ctx->common.magic = ISCAPI_APPCTX_MAGIC;
|
|
||||||
|
|
||||||
ctx->mctx = NULL;
|
ctx->mctx = NULL;
|
||||||
isc_mem_attach(mctx, &ctx->mctx);
|
isc_mem_attach(mctx, &ctx->mctx);
|
||||||
|
|
||||||
ctx->taskmgr = NULL;
|
*ctxp = ctx;
|
||||||
ctx->socketmgr = NULL;
|
|
||||||
ctx->timermgr = NULL;
|
|
||||||
|
|
||||||
*ctxp = (isc_appctx_t *)ctx;
|
|
||||||
|
|
||||||
return (ISC_R_SUCCESS);
|
return (ISC_R_SUCCESS);
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
void
|
||||||
isc_appctx_destroy(isc_appctx_t **ctxp) {
|
isc_appctx_destroy(isc_appctx_t **ctxp) {
|
||||||
isc__appctx_t *ctx;
|
isc_appctx_t *ctx;
|
||||||
|
|
||||||
REQUIRE(ctxp != NULL);
|
REQUIRE(ctxp != NULL);
|
||||||
ctx = (isc__appctx_t *)*ctxp;
|
ctx = (isc__appctx_t *)*ctxp;
|
||||||
@@ -388,30 +368,3 @@ isc_appctx_destroy(isc_appctx_t **ctxp) {
|
|||||||
|
|
||||||
*ctxp = NULL;
|
*ctxp = NULL;
|
||||||
}
|
}
|
||||||
|
|
||||||
void
|
|
||||||
isc_appctx_settaskmgr(isc_appctx_t *ctx0, isc_taskmgr_t *taskmgr) {
|
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
|
||||||
|
|
||||||
ctx->taskmgr = taskmgr;
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
isc_appctx_setsocketmgr(isc_appctx_t *ctx0, isc_socketmgr_t *socketmgr) {
|
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
|
||||||
|
|
||||||
ctx->socketmgr = socketmgr;
|
|
||||||
}
|
|
||||||
|
|
||||||
void
|
|
||||||
isc_appctx_settimermgr(isc_appctx_t *ctx0, isc_timermgr_t *timermgr) {
|
|
||||||
isc__appctx_t *ctx = (isc__appctx_t *)ctx0;
|
|
||||||
|
|
||||||
REQUIRE(VALID_APPCTX(ctx));
|
|
||||||
|
|
||||||
ctx->timermgr = timermgr;
|
|
||||||
}
|
|
||||||
|
@@ -24,9 +24,6 @@ isc_app_start
|
|||||||
isc_app_unblock
|
isc_app_unblock
|
||||||
isc_appctx_create
|
isc_appctx_create
|
||||||
isc_appctx_destroy
|
isc_appctx_destroy
|
||||||
isc_appctx_setsocketmgr
|
|
||||||
isc_appctx_settaskmgr
|
|
||||||
isc_appctx_settimermgr
|
|
||||||
isc__buffer_activeregion
|
isc__buffer_activeregion
|
||||||
isc__buffer_add
|
isc__buffer_add
|
||||||
isc__buffer_availableregion
|
isc__buffer_availableregion
|
||||||
|
@@ -3872,16 +3872,12 @@ isc_socketmgr_renderjson(isc_socketmgr_t *mgr, json_object *stats) {
|
|||||||
#endif /* HAVE_JSON */
|
#endif /* HAVE_JSON */
|
||||||
|
|
||||||
isc_result_t
|
isc_result_t
|
||||||
isc_socketmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
|
isc_socketmgr_createinctx(isc_mem_t *mctx, isc_socketmgr_t **managerp)
|
||||||
isc_socketmgr_t **managerp)
|
|
||||||
{
|
{
|
||||||
isc_result_t result;
|
isc_result_t result;
|
||||||
|
|
||||||
result = isc_socketmgr_create(mctx, managerp);
|
result = isc_socketmgr_create(mctx, managerp);
|
||||||
|
|
||||||
if (result == ISC_R_SUCCESS)
|
|
||||||
isc_appctx_setsocketmgr(actx, *managerp);
|
|
||||||
|
|
||||||
return (result);
|
return (result);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@@ -223,15 +223,15 @@ ctxs_init(isc_mem_t **mctxp, isc_appctx_t **actxp,
|
|||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
result = isc_taskmgr_createinctx(*mctxp, *actxp, 1, 0, taskmgrp);
|
result = isc_taskmgr_createinctx(*mctxp, 1, 0, taskmgrp);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
result = isc_socketmgr_createinctx(*mctxp, *actxp, socketmgrp);
|
result = isc_socketmgr_createinctx(*mctxp, socketmgrp);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
result = isc_timermgr_createinctx(*mctxp, *actxp, timermgrp);
|
result = isc_timermgr_createinctx(*mctxp, timermgrp);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
|
@@ -379,13 +379,13 @@ main(int argc, char *argv[]) {
|
|||||||
result = isc_app_ctxstart(actx);
|
result = isc_app_ctxstart(actx);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
result = isc_taskmgr_createinctx(mctx, actx, 1, 0, &taskmgr);
|
result = isc_taskmgr_createinctx(mctx, 1, 0, &taskmgr);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
result = isc_socketmgr_createinctx(mctx, actx, &socketmgr);
|
result = isc_socketmgr_createinctx(mctx, &socketmgr);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
result = isc_timermgr_createinctx(mctx, actx, &timermgr);
|
result = isc_timermgr_createinctx(mctx, &timermgr);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
|
|
||||||
|
@@ -105,15 +105,15 @@ ctxs_init(isc_mem_t **mctxp, isc_appctx_t **actxp,
|
|||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
result = isc_taskmgr_createinctx(*mctxp, *actxp, 1, 0, taskmgrp);
|
result = isc_taskmgr_createinctx(*mctxp, 1, 0, taskmgrp);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
result = isc_socketmgr_createinctx(*mctxp, *actxp, socketmgrp);
|
result = isc_socketmgr_createinctx(*mctxp, socketmgrp);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
result = isc_timermgr_createinctx(*mctxp, *actxp, timermgrp);
|
result = isc_timermgr_createinctx(*mctxp, timermgrp);
|
||||||
if (result != ISC_R_SUCCESS)
|
if (result != ISC_R_SUCCESS)
|
||||||
goto fail;
|
goto fail;
|
||||||
|
|
||||||
|
Reference in New Issue
Block a user