mirror of
https://github.com/bluekitchen/btstack.git
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128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
/*
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* Copyright (C) 2014 BlueKitchen GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
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* RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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#define __BTSTACK_FILE__ "btstack_stdin_windows.c"
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "btstack_run_loop.h"
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#include "btstack_defines.h"
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#include <stdlib.h>
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#include "btstack_stdin.h"
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// From MSDN:
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// __WIN32 Defined as 1 when the compilation target is 32-bit ARM, 64-bit ARM, x86, or x64.
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// Otherwise, undefined.
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#include <Windows.h>
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#include <conio.h> //provides non standard getch() function
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#include <signal.h>
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static btstack_data_source_t stdin_source;
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static int activated = 0;
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static HANDLE stdin_reader_thread_handle;
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static char key_read_buffer;
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static HANDLE key_processed_handle;
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static void (*stdin_handler)(char c);
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static WINAPI DWORD stdin_reader_thread_process(void * p){
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while (1){
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key_read_buffer = getch();
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SignalObjectAndWait(stdin_source.source.handle, key_processed_handle, INFINITE, FALSE);
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}
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return 0;
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}
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static void stdin_process(btstack_data_source_t *ds, btstack_data_source_callback_type_t callback_type){
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// raise SIGINT for CTRL-c on main thread
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if (key_read_buffer == 0x03){
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raise(SIGINT);
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return;
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}
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SetEvent(key_processed_handle);
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if (stdin_handler){
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(*stdin_handler)(key_read_buffer);
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}
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}
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void btstack_stdin_setup(void (*handler)(char c)){
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if (activated) return;
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stdin_handler = handler;
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// asynchronous io on stdin via OVERLAPPED seems to be problematic.
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// Use separate thread and event objects instead
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stdin_source.source.handle = CreateEvent(NULL, FALSE, FALSE, NULL);
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key_processed_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
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// default attributes, default stack size, proc, args, start immediately, don't care for thread id
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stdin_reader_thread_handle = CreateThread(NULL, 0, &stdin_reader_thread_process, NULL, 0, NULL);
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btstack_run_loop_enable_data_source_callbacks(&stdin_source, DATA_SOURCE_CALLBACK_READ);
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btstack_run_loop_set_data_source_handler(&stdin_source, stdin_process);
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btstack_run_loop_add_data_source(&stdin_source);
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activated = 1;
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}
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void btstack_stdin_reset(void){
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if (!activated) return;
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activated = 0;
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stdin_handler = NULL;
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btstack_run_loop_remove_data_source(&stdin_source);
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// shutdown thread
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TerminateThread(stdin_reader_thread_handle, 0);
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WaitForSingleObject(stdin_reader_thread_handle, INFINITE);
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CloseHandle(stdin_reader_thread_handle);
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// free events
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CloseHandle(stdin_source.source.handle);
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CloseHandle(key_processed_handle);
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}
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