gui_event_handler is defined. Instruments for dealing with this handler are added.
Signed-off-by: Yordan Karadzhov (VMware) <[email protected]> --- Makefile | 6 ++--- kshark-plugin.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ kshark-plugin.h | 22 ++++++++++++++++++ 3 files changed, 94 insertions(+), 3 deletions(-) create mode 100644 kshark-plugin.c diff --git a/Makefile b/Makefile index 8d0f16f..992e6b0 100644 --- a/Makefile +++ b/Makefile @@ -348,17 +348,17 @@ $(obj)/%.o: $(src)/%.c $(Q)$(call check_gui) TRACE_GUI_OBJS = trace-filter.o trace-compat.o trace-filter-hash.o trace-dialog.o \ - trace-xml.o + trace-xml.o kshark-plugin.o TRACE_CMD_OBJS = trace-cmd.o trace-record.o trace-read.o trace-split.o trace-listen.o \ trace-stack.o trace-hist.o trace-mem.o trace-snapshot.o trace-stat.o \ trace-hash.o trace-profile.o trace-stream.o trace-record.o trace-restore.o \ trace-check-events.o trace-show.o trace-list.o -TRACE_VIEW_OBJS = trace-view.o trace-view-store.o +TRACE_VIEW_OBJS = trace-view.o trace-view-store.o kshark-plugin.o TRACE_GRAPH_OBJS = trace-graph.o trace-plot.o trace-plot-cpu.o trace-plot-task.o TRACE_VIEW_MAIN_OBJS = trace-view-main.o $(TRACE_VIEW_OBJS) $(TRACE_GUI_OBJS) TRACE_GRAPH_MAIN_OBJS = trace-graph-main.o $(TRACE_GRAPH_OBJS) $(TRACE_GUI_OBJS) KERNEL_SHARK_OBJS = $(TRACE_VIEW_OBJS) $(TRACE_GRAPH_OBJS) $(TRACE_GUI_OBJS) \ - trace-capture.o kernel-shark.o + trace-capture.o kernel-shark.o kshark-plugin.o PEVENT_LIB_OBJS = event-parse.o trace-seq.o parse-filter.o parse-utils.o str_error_r.o TCMD_LIB_OBJS = $(PEVENT_LIB_OBJS) trace-util.o trace-input.o trace-ftrace.o \ diff --git a/kshark-plugin.c b/kshark-plugin.c new file mode 100644 index 0000000..6532512 --- /dev/null +++ b/kshark-plugin.c @@ -0,0 +1,69 @@ +/* + * Copyright (C) 2017 VMware Inc, Yordan Karadzhov <[email protected]> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License (not later!) + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include <stdlib.h> + +#include "kshark-plugin.h" + +struct gui_event_handler *make_gui_event_handler(int event_id, int type, + kshark_plugin_event_handler_func evt_func, + kshark_plugin_context_update_func ctx_func) +{ + struct gui_event_handler *handler = malloc(sizeof(struct gui_event_handler)); + + if (!handler) + return NULL; + + handler->next = NULL; + handler->id = event_id; + handler->type = type; + handler->event_func = evt_func; + handler->context_func = ctx_func; + + return handler; +} + +struct gui_event_handler *find_gui_event_handler(struct gui_event_handler *handlers, + int event_id) +{ + while (handlers) { + if (handlers->id == event_id) + return handlers; + + handlers = handlers->next; + } + + return NULL; +} + +void unregister_gui_event_handler(struct gui_event_handler **handlers, int event_id) +{ + struct gui_event_handler **last = handlers; + struct gui_event_handler *list; + + for (list = *handlers; list; list = list->next) { + if (list->id == event_id) { + *last = list->next; + return; + } + + last = &list->next; + } +} diff --git a/kshark-plugin.h b/kshark-plugin.h index 81c09b5..d65ee02 100644 --- a/kshark-plugin.h +++ b/kshark-plugin.h @@ -50,4 +50,26 @@ enum gui_plugin_actions { KSHARK_PLUGIN_UNLOAD, }; +enum gui_event_types { + KSHARK_PLUGIN_SWITCH_EVENT, + KSHARK_PLUGIN_WAKEUP_EVENT, +}; + +struct gui_event_handler { + struct gui_event_handler *next; + int id; + int type; + kshark_plugin_event_handler_func event_func; + kshark_plugin_context_update_func context_func; +}; + +struct gui_event_handler *make_gui_event_handler(int event_id, int type, + kshark_plugin_event_handler_func evt_func, + kshark_plugin_context_update_func ctx_func); + +struct gui_event_handler *find_gui_event_handler(struct gui_event_handler *handlers, + int event_id); + +void unregister_gui_event_handler(struct gui_event_handler **handlers, int event_id); + #endif -- 2.15.0.rc0
