micro client.
This commit is contained in:
Nick Bolton
parent
bab317931b
commit
58c5a1d84d
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@ -17,6 +17,7 @@ add_subdirectory(lib)
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add_subdirectory(cmd)
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add_subdirectory(test)
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add_subdirectory(plugin)
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add_subdirectory(micro)
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if (VNC_SUPPORT)
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add_subdirectory(vnc)
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@ -16,3 +16,4 @@
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add_subdirectory(synergyc)
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add_subdirectory(synergys)
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add_subdirectory(synergyd)
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add_subdirectory(usynergy)
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@ -0,0 +1,24 @@
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# synergy -- mouse and keyboard sharing utility
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# Copyright (C) 2012 Nick Bolton
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#
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# This package is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# found in the file COPYING that should have accompanied this file.
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#
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# This package is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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if (WIN32)
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set(src uSynergyWin32.c)
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elseif (UNIX)
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set(src uSynergyUnix.c)
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endif()
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include_directories(../../micro)
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add_executable(usynergy ${src})
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target_link_libraries(usynergy micro)
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@ -0,0 +1,37 @@
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/*
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uSynergy client -- Implementation for the embedded Synergy client library
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version 1.0.0, July 7th, 2012
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Copyright (c) 2012 Nick Bolton
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#include "uSynergy.h"
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// TODO: implement callbacks.
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int main(char* argv, int argc) {
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uSynergyContext* context = malloc(sizeof(uSynergyContext));
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uSynergyInit(context);
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for(;;) {
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uSynergyUpdate(context);
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}
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}
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@ -0,0 +1,141 @@
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/*
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uSynergy client -- Implementation for the embedded Synergy client library
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version 1.0.0, July 7th, 2012
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Copyright (c) 2012 Nick Bolton
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#include "uSynergy.h"
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#include <stdlib.h>
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#include <stdio.h>
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#define WIN32_LEAN_AND_MEAN
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#include <Windows.h>
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uSynergyBool connect(uSynergyCookie cookie);
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uSynergyBool send(uSynergyCookie cookie, const uint8_t *buffer, int length);
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uSynergyBool receive(uSynergyCookie cookie, uint8_t *buffer, int maxLength, int* outLength);
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void sleep(uSynergyCookie cookie, int timeMs);
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uint32_t getTime();
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void trace(uSynergyCookie cookie, const char *text);
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void screenActive(uSynergyCookie cookie, uSynergyBool active);
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void mouse(uSynergyCookie cookie, uint16_t x, uint16_t y, int16_t wheelX,
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int16_t wheelY, uSynergyBool buttonLeft, uSynergyBool buttonRight,
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uSynergyBool buttonMiddle);
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void keyboard(uSynergyCookie cookie, uint16_t key, uSynergyBool down,
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uSynergyBool repeat);
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void joystick(uSynergyCookie cookie, uint8_t joyNum, uint16_t buttons,
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int8_t leftStickX, int8_t leftStickY, int8_t rightStickX,
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int8_t rightStickY);
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void clipboard(uSynergyCookie cookie, enum uSynergyClipboardFormat format,
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const uint8_t *data, uint32_t size);
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// TODO: implement callbacks.
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int main(char* argv, int argc)
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{
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uSynergyContext context;
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uSynergyInit(&context);
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context.m_connectFunc = &connect;
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context.m_sendFunc = &send;
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context.m_receiveFunc = &receive;
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context.m_sleepFunc = &sleep;
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context.m_getTimeFunc = &getTime;
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context.m_traceFunc = &trace;
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context.m_screenActiveCallback = &screenActive;
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context.m_mouseCallback = &mouse;
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context.m_keyboardCallback = &keyboard;
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context.m_joystickCallback = &joystick;
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context.m_clipboardCallback = &clipboard;
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for(;;) {
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uSynergyUpdate(&context);
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}
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}
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uSynergyBool connect(uSynergyCookie cookie)
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{
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printf("connect\n");
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return USYNERGY_TRUE;
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}
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uSynergyBool send(uSynergyCookie cookie, const uint8_t *buffer, int length)
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{
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printf("send\n");
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return USYNERGY_TRUE;
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}
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uSynergyBool receive(uSynergyCookie cookie, uint8_t *buffer, int maxLength, int* outLength)
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{
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printf("receive\n");
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return USYNERGY_TRUE;
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}
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void sleep(uSynergyCookie cookie, int timeMs)
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{
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printf("sleep, timeMs=%d\n", timeMs);
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Sleep(timeMs);
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}
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uint32_t getTime()
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{
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printf("getTime\n");
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return 0;
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}
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void trace(uSynergyCookie cookie, const char *text)
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{
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printf("%s\n", text);
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}
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void screenActive(uSynergyCookie cookie, uSynergyBool active)
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{
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printf("screenActive, active=%d\n", active);
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}
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void mouse(uSynergyCookie cookie, uint16_t x, uint16_t y, int16_t wheelX,
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int16_t wheelY, uSynergyBool buttonLeft, uSynergyBool buttonRight,
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uSynergyBool buttonMiddle)
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{
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printf("mouse, pos=%d,%d\n", x, y);
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}
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void keyboard(uSynergyCookie cookie, uint16_t key, uSynergyBool down,
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uSynergyBool repeat)
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{
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printf("keyboard, key=%d down=%d repeat=%d\n", key, down, repeat);
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}
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void joystick(uSynergyCookie cookie, uint8_t joyNum, uint16_t buttons,
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int8_t leftStickX, int8_t leftStickY, int8_t rightStickX,
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int8_t rightStickY)
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{
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printf("joystick, left=%d,%d right=%d,%d\n", leftStickX, leftStickY,
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rightStickX, rightStickY);
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}
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void clipboard(uSynergyCookie cookie, enum uSynergyClipboardFormat format,
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const uint8_t *data, uint32_t size)
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{
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printf("clipboard, size=%d\n", size);
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}
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@ -0,0 +1,24 @@
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# synergy -- mouse and keyboard sharing utility
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# Copyright (C) 2012 Nick Bolton
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#
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# This package is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# found in the file COPYING that should have accompanied this file.
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#
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# This package is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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set(src
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uSynergy.c
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)
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if (WIN32)
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list(APPEND src uSynergy.h)
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endif()
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add_library(micro STATIC ${src})
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@ -0,0 +1,633 @@
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/*
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uSynergy client -- Implementation for the embedded Synergy client library
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version 1.0.0, July 7th, 2012
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Copyright (c) 2012 Alex Evans
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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||||
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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||||
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1. The origin of this software must not be misrepresented; you must not
|
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claim that you wrote the original software. If you use this software
|
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in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#include "uSynergy.h"
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#include <stdio.h>
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#include <string.h>
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#include <varargs.h>
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//---------------------------------------------------------------------------------------------------------------------
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// Internal helpers
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//---------------------------------------------------------------------------------------------------------------------
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/**
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@brief Read 16 bit integer in network byte order and convert to native byte order
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**/
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static int16_t sNetToNative16(const unsigned char *value)
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{
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#ifdef USYNERGY_LITTLE_ENDIAN
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return value[0] | (value[1] << 8);
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#else
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return value[1] | (value[0] << 8);
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#endif
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}
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/**
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@brief Read 32 bit integer in network byte order and convert to native byte order
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**/
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static int32_t sNetToNative32(const unsigned char *value)
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{
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#ifdef USYNERGY_LITTLE_ENDIAN
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return value[0] | (value[1] << 8) | (value[2] << 16) | (value[3] << 24);
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#else
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return value[3] | (value[2] << 8) | (value[1] << 16) | (value[0] << 24);
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#endif
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}
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/**
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@brief Trace text to client
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**/
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static void sTrace(uSynergyContext *context, const char* fmt, ...)
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{
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// Print to buffer, then call callback
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char buffer[USYNERGY_TRACE_BUFFER_SIZE];
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va_list va_alist;
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// Expand arguments and format to string
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va_start(va_alist);
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vsprintf_s(buffer, USYNERGY_TRACE_BUFFER_SIZE, fmt, va_alist);
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va_end(va_alist);
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// Don't trace if we don't have a trace function
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if (context->m_traceFunc != 0L)
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context->m_traceFunc(context->m_cookie, buffer);
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}
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/**
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@brief Add string to reply packet
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**/
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static void sAddString(uSynergyContext *context, const char *string)
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{
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size_t len = strlen(string);
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memcpy(context->m_replyCur, string, len);
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context->m_replyCur += len;
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}
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/**
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@brief Add uint8 to reply packet
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**/
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static void sAddUInt8(uSynergyContext *context, uint8_t value)
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{
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*context->m_replyCur++ = value;
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}
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/**
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@brief Add uint16 to reply packet
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**/
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static void sAddUInt16(uSynergyContext *context, uint16_t value)
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{
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uint8_t *reply = context->m_replyCur;
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*reply++ = (uint8_t)(value >> 8);
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*reply++ = (uint8_t)value;
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context->m_replyCur = reply;
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}
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/**
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@brief Add uint32 to reply packet
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**/
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static void sAddUInt32(uSynergyContext *context, uint32_t value)
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{
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uint8_t *reply = context->m_replyCur;
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*reply++ = (uint8_t)(value >> 24);
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*reply++ = (uint8_t)(value >> 16);
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*reply++ = (uint8_t)(value >> 8);
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*reply++ = (uint8_t)value;
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context->m_replyCur = reply;
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}
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/**
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@brief Send reply packet
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**/
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static uSynergyBool sSendReply(uSynergyContext *context)
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{
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// Set header size
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uint8_t *reply_buf = context->m_replyBuffer;
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uint32_t reply_len = (uint32_t)(context->m_replyCur - reply_buf); /* Total size of reply */
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uint32_t body_len = reply_len - 4; /* Size of body */
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uSynergyBool ret;
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reply_buf[0] = (uint8_t)(body_len >> 24);
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reply_buf[1] = (uint8_t)(body_len >> 16);
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reply_buf[2] = (uint8_t)(body_len >> 8);
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reply_buf[3] = (uint8_t)body_len;
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// Send reply
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ret = context->m_sendFunc(context->m_cookie, context->m_replyBuffer, reply_len);
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// Reset reply buffer write pointer
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context->m_replyCur = context->m_replyBuffer+4;
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return ret;
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}
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/**
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@brief Call mouse callback after a mouse event
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**/
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static void sSendMouseCallback(uSynergyContext *context)
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{
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// Skip if no callback is installed
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if (context->m_mouseCallback == 0L)
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return;
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// Send callback
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context->m_mouseCallback(context->m_cookie, context->m_mouseX, context->m_mouseY, context->m_mouseWheelX,
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context->m_mouseWheelY, context->m_mouseButtonLeft, context->m_mouseButtonRight, context->m_mouseButtonMiddle);
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}
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/**
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@brief Send keyboard callback when a key has been pressed or released
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**/
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static void sSendKeyboardCallback(uSynergyContext *context, uint16_t key, char down, char repeat, uint16_t modifiers)
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{
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// Skip if no callback is installed
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if (context->m_keyboardCallback == 0L)
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return;
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// Send callback
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modifiers;
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context->m_keyboardCallback(context->m_cookie, key, down, repeat);
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}
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||||
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||||
|
||||
|
||||
/**
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@brief Send joystick callback
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**/
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||||
static void sSendJoystickCallback(uSynergyContext *context, uint8_t joyNum)
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{
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int8_t *sticks;
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// Skip if no callback is installed
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if (context->m_joystickCallback == 0L)
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return;
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// Send callback
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sticks = context->m_joystickSticks[joyNum];
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context->m_joystickCallback(context->m_cookie, joyNum, context->m_joystickButtons[joyNum], sticks[0], sticks[1], sticks[2], sticks[3]);
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}
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||||
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||||
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/**
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@brief Parse a single client message, update state, send callbacks and send replies
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**/
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#define USYNERGY_IS_PACKET(pkt_id) memcmp(message+4, pkt_id, 4)==0
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static void sProcessMessage(uSynergyContext *context, const uint8_t *message)
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{
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// We have a packet!
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if (memcmp(message+4, "Synergy", 7)==0)
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{
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// Welcome message
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// kMsgHello = "Synergy%2i%2i"
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// kMsgHelloBack = "Synergy%2i%2i%s"
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sAddString(context, "Synergy");
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sAddUInt16(context, USYNERGY_PROTOCOL_MAJOR);
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sAddUInt16(context, USYNERGY_PROTOCOL_MINOR);
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sAddUInt32(context, (uint32_t)strlen(context->m_clientName));
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sAddString(context, context->m_clientName);
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if (!sSendReply(context))
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||||
{
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||||
// Send reply failed, let's try to reconnect
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||||
sTrace(context, "SendReply failed, trying to reconnect in a second");
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||||
context->m_connected = USYNERGY_FALSE;
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||||
context->m_sleepFunc(context->m_cookie, 1000);
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||||
}
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||||
else
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||||
{
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||||
// Let's assume we're connected
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||||
sTrace(context, "Connected as client \"%s\"", context->m_clientName);
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||||
context->m_hasReceivedHello = USYNERGY_TRUE;
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||||
}
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||||
return;
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||||
}
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||||
else if (USYNERGY_IS_PACKET("QINF"))
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||||
{
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||||
// Screen info. Reply with DINF
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||||
// kMsgQInfo = "QINF"
|
||||
// kMsgDInfo = "DINF%2i%2i%2i%2i%2i%2i%2i"
|
||||
uint16_t x = 0, y = 0, warp = 0;
|
||||
sAddString(context, "DINF");
|
||||
sAddUInt16(context, x);
|
||||
sAddUInt16(context, y);
|
||||
sAddUInt16(context, context->m_clientWidth);
|
||||
sAddUInt16(context, context->m_clientHeight);
|
||||
sAddUInt16(context, warp);
|
||||
sAddUInt16(context, 0); // mx?
|
||||
sAddUInt16(context, 0); // my?
|
||||
sSendReply(context);
|
||||
return;
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("CIAK"))
|
||||
{
|
||||
// Do nothing?
|
||||
// kMsgCInfoAck = "CIAK"
|
||||
return;
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("CROP"))
|
||||
{
|
||||
// Do nothing?
|
||||
// kMsgCResetOptions = "CROP"
|
||||
return;
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("CINN"))
|
||||
{
|
||||
// Screen enter. Reply with CNOP
|
||||
// kMsgCEnter = "CINN%2i%2i%4i%2i"
|
||||
|
||||
// Obtain the Synergy sequence number
|
||||
context->m_sequenceNumber = sNetToNative32(message + 12);
|
||||
context->m_isCaptured = USYNERGY_TRUE;
|
||||
|
||||
// Call callback
|
||||
if (context->m_screenActiveCallback != 0L)
|
||||
context->m_screenActiveCallback(context->m_cookie, USYNERGY_TRUE);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("COUT"))
|
||||
{
|
||||
// Screen leave
|
||||
// kMsgCLeave = "COUT"
|
||||
context->m_isCaptured = USYNERGY_FALSE;
|
||||
|
||||
// Call callback
|
||||
if (context->m_screenActiveCallback != 0L)
|
||||
context->m_screenActiveCallback(context->m_cookie, USYNERGY_FALSE);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DMDN"))
|
||||
{
|
||||
// Mouse down
|
||||
// kMsgDMouseDown = "DMDN%1i"
|
||||
char btn = message[8]-1;
|
||||
if (btn==2)
|
||||
context->m_mouseButtonRight = USYNERGY_TRUE;
|
||||
else if (btn==1)
|
||||
context->m_mouseButtonMiddle = USYNERGY_TRUE;
|
||||
else
|
||||
context->m_mouseButtonLeft = USYNERGY_TRUE;
|
||||
sSendMouseCallback(context);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DMUP"))
|
||||
{
|
||||
// Mouse up
|
||||
// kMsgDMouseUp = "DMUP%1i"
|
||||
char btn = message[8]-1;
|
||||
if (btn==2)
|
||||
context->m_mouseButtonRight = USYNERGY_FALSE;
|
||||
else if (btn==1)
|
||||
context->m_mouseButtonMiddle = USYNERGY_FALSE;
|
||||
else
|
||||
context->m_mouseButtonLeft = USYNERGY_FALSE;
|
||||
sSendMouseCallback(context);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DMMV"))
|
||||
{
|
||||
// Mouse move. Reply with CNOP
|
||||
// kMsgDMouseMove = "DMMV%2i%2i"
|
||||
context->m_mouseX = sNetToNative16(message+8);
|
||||
context->m_mouseY = sNetToNative16(message+10);
|
||||
sSendMouseCallback(context);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DMWM"))
|
||||
{
|
||||
// Mouse wheel
|
||||
// kMsgDMouseWheel = "DMWM%2i%2i"
|
||||
// kMsgDMouseWheel1_0 = "DMWM%2i"
|
||||
context->m_mouseWheelX += sNetToNative16(message+8);
|
||||
context->m_mouseWheelY += sNetToNative16(message+10);
|
||||
sSendMouseCallback(context);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DKDN"))
|
||||
{
|
||||
// Key down
|
||||
// kMsgDKeyDown = "DKDN%2i%2i%2i"
|
||||
// kMsgDKeyDown1_0 = "DKDN%2i%2i"
|
||||
//uint16_t id = sNetToNative16(message+8);
|
||||
uint16_t mod = sNetToNative16(message+10);
|
||||
uint16_t key = sNetToNative16(message+12);
|
||||
sSendKeyboardCallback(context, key, 1, 0, mod);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DKRP"))
|
||||
{
|
||||
// Key repeat
|
||||
// kMsgDKeyRepeat = "DKRP%2i%2i%2i%2i"
|
||||
// kMsgDKeyRepeat1_0 = "DKRP%2i%2i%2i"
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DKUP"))
|
||||
{
|
||||
// Key up
|
||||
// kMsgDKeyUp = "DKUP%2i%2i%2i"
|
||||
// kMsgDKeyUp1_0 = "DKUP%2i%2i"
|
||||
//uint16 id=Endian::sNetToNative(sbuf[4]);
|
||||
uint16_t mod = sNetToNative16(message+10);
|
||||
uint16_t key = sNetToNative16(message+12);
|
||||
sSendKeyboardCallback(context, key, 0, 0, mod);
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DGBT"))
|
||||
{
|
||||
// Joystick buttons
|
||||
// kMsgDGameButtons = "DGBT%1i%2i";
|
||||
uint8_t joy_num = message[8];
|
||||
if (joy_num<USYNERGY_NUM_JOYSTICKS)
|
||||
{
|
||||
// Copy button state, then send callback
|
||||
context->m_joystickButtons[joy_num] = (message[9] << 8) | message[10];
|
||||
sSendJoystickCallback(context, joy_num);
|
||||
}
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DGST"))
|
||||
{
|
||||
// Joystick sticks
|
||||
// kMsgDGameSticks = "DGST%1i%1i%1i%1i%1i";
|
||||
uint8_t joy_num = message[8];
|
||||
if (joy_num<USYNERGY_NUM_JOYSTICKS)
|
||||
{
|
||||
// Copy stick state, then send callback
|
||||
memcpy(context->m_joystickSticks[joy_num], message+9, 4);
|
||||
sSendJoystickCallback(context, joy_num);
|
||||
}
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DSOP"))
|
||||
{
|
||||
// Set options
|
||||
// kMsgDSetOptions = "DSOP%4I"
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("CALV"))
|
||||
{
|
||||
// Keepalive, reply with CALV and then CNOP
|
||||
// kMsgCKeepAlive = "CALV"
|
||||
sAddString(context, "CALV");
|
||||
sSendReply(context);
|
||||
// now reply with CNOP
|
||||
}
|
||||
else if (USYNERGY_IS_PACKET("DCLP"))
|
||||
{
|
||||
// Clipboard message
|
||||
// kMsgDClipboard = "DCLP%1i%4i%s"
|
||||
//
|
||||
// The clipboard message contains:
|
||||
// 1 uint32: The size of the message
|
||||
// 4 chars: The identifier ("DCLP")
|
||||
// 1 uint8: The clipboard index
|
||||
// 1 uint32: The sequence number. It's zero, because this message is always coming from the server?
|
||||
// 1 uint32: The total size of the remaining 'string' (as per the Synergy %s string format (which is 1 uint32 for size followed by a char buffer (not necessarily null terminated)).
|
||||
// 1 uint32: The number of formats present in the message
|
||||
// And then 'number of formats' times the following:
|
||||
// 1 uint32: The format of the clipboard data
|
||||
// 1 uint32: The size n of the clipboard data
|
||||
// n uint8: The clipboard data
|
||||
const uint8_t * parse_msg = message+17;
|
||||
uint32_t num_formats = sNetToNative32(parse_msg);
|
||||
parse_msg += 4;
|
||||
for (; num_formats; num_formats--)
|
||||
{
|
||||
// Parse clipboard format header
|
||||
uint32_t format = sNetToNative32(parse_msg);
|
||||
uint32_t size = sNetToNative32(parse_msg+4);
|
||||
parse_msg += 8;
|
||||
|
||||
// Call callback
|
||||
if (context->m_clipboardCallback)
|
||||
context->m_clipboardCallback(context->m_cookie, format, parse_msg, size);
|
||||
|
||||
parse_msg += size;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// Unknown packet, could be any of these
|
||||
// kMsgCNoop = "CNOP"
|
||||
// kMsgCClose = "CBYE"
|
||||
// kMsgCClipboard = "CCLP%1i%4i"
|
||||
// kMsgCScreenSaver = "CSEC%1i"
|
||||
// kMsgDKeyRepeat = "DKRP%2i%2i%2i%2i"
|
||||
// kMsgDKeyRepeat1_0 = "DKRP%2i%2i%2i"
|
||||
// kMsgDMouseRelMove = "DMRM%2i%2i"
|
||||
// kMsgEIncompatible = "EICV%2i%2i"
|
||||
// kMsgEBusy = "EBSY"
|
||||
// kMsgEUnknown = "EUNK"
|
||||
// kMsgEBad = "EBAD"
|
||||
sTrace(context, "Unknown packet '%c%c%c%c'", message[4], message[5], message[6], message[7]);
|
||||
return;
|
||||
}
|
||||
|
||||
// Reply with CNOP maybe?
|
||||
sAddString(context, "CNOP");
|
||||
sSendReply(context);
|
||||
}
|
||||
#undef USYNERGY_IS_PACKET
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Mark context as being disconnected
|
||||
**/
|
||||
static void sSetDisconnected(uSynergyContext *context)
|
||||
{
|
||||
context->m_connected = USYNERGY_FALSE;
|
||||
context->m_hasReceivedHello = USYNERGY_FALSE;
|
||||
context->m_isCaptured = USYNERGY_FALSE;
|
||||
context->m_replyCur = context->m_replyBuffer + 4;
|
||||
context->m_sequenceNumber = 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Update a connected context
|
||||
**/
|
||||
static void sUpdateContext(uSynergyContext *context)
|
||||
{
|
||||
/* Receive data (blocking) */
|
||||
int receive_size = USYNERGY_RECEIVE_BUFFER_SIZE - context->m_receiveOfs;
|
||||
int num_received = 0;
|
||||
int packlen = 0;
|
||||
if (context->m_receiveFunc(context->m_cookie, context->m_receiveBuffer, receive_size, &num_received) == USYNERGY_FALSE)
|
||||
{
|
||||
/* Receive failed, let's try to reconnect */
|
||||
sTrace(context, "Receive failed (%d bytes asked, %d bytes received), trying to reconnect in a second", receive_size, num_received);
|
||||
sSetDisconnected(context);
|
||||
context->m_sleepFunc(context->m_cookie, 1000);
|
||||
return;
|
||||
}
|
||||
context->m_receiveOfs += num_received;
|
||||
|
||||
/* If we didn't receive any data then we're probably still polling to get connected and
|
||||
therefore not getting any data back. To avoid overloading the system with a Synergy
|
||||
thread that would hammer on polling, we let it rest for a bit if there's no data. */
|
||||
if (num_received == 0)
|
||||
context->m_sleepFunc(context->m_cookie, 500);
|
||||
|
||||
/* Check for timeouts */
|
||||
if (context->m_hasReceivedHello)
|
||||
{
|
||||
uint32_t cur_time = context->m_getTimeFunc();
|
||||
if (num_received == 0)
|
||||
{
|
||||
/* Timeout after 2 secs of inactivity (we received no CALV) */
|
||||
if ((cur_time - context->m_lastMessageTime) > USYNERGY_IDLE_TIMEOUT)
|
||||
sSetDisconnected(context);
|
||||
}
|
||||
else
|
||||
context->m_lastMessageTime = cur_time;
|
||||
}
|
||||
|
||||
/* Eat packets */
|
||||
for (;;)
|
||||
{
|
||||
/* Grab packet length and bail out if the packet goes beyond the end of the buffer */
|
||||
packlen = sNetToNative32(context->m_receiveBuffer);
|
||||
if (packlen+4 > context->m_receiveOfs)
|
||||
break;
|
||||
|
||||
/* Process message */
|
||||
sProcessMessage(context, context->m_receiveBuffer);
|
||||
|
||||
/* Move packet to front of buffer */
|
||||
memmove(context->m_receiveBuffer, context->m_receiveBuffer+packlen+4, context->m_receiveOfs-packlen-4);
|
||||
context->m_receiveOfs -= packlen+4;
|
||||
}
|
||||
|
||||
/* Throw away over-sized packets */
|
||||
if (packlen > USYNERGY_RECEIVE_BUFFER_SIZE)
|
||||
{
|
||||
/* Oversized packet, ditch tail end */
|
||||
sTrace(context, "Oversized packet: '%c%c%c%c' (length %d)", context->m_receiveBuffer[4], context->m_receiveBuffer[5], context->m_receiveBuffer[6], context->m_receiveBuffer[7], packlen);
|
||||
num_received = context->m_receiveOfs-4; // 4 bytes for the size field
|
||||
while (num_received != packlen)
|
||||
{
|
||||
int buffer_left = packlen - num_received;
|
||||
int to_receive = buffer_left < USYNERGY_RECEIVE_BUFFER_SIZE ? buffer_left : USYNERGY_RECEIVE_BUFFER_SIZE;
|
||||
int ditch_received = 0;
|
||||
if (context->m_receiveFunc(context->m_cookie, context->m_receiveBuffer, to_receive, &ditch_received) == USYNERGY_FALSE)
|
||||
{
|
||||
/* Receive failed, let's try to reconnect */
|
||||
sTrace(context, "Synergy: Receive failed, trying to reconnect in a second");
|
||||
sSetDisconnected(context);
|
||||
context->m_sleepFunc(context->m_cookie, 1000);
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
num_received += ditch_received;
|
||||
}
|
||||
}
|
||||
context->m_receiveOfs = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
// Public interface
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Initialize uSynergy context
|
||||
**/
|
||||
void uSynergyInit(uSynergyContext *context)
|
||||
{
|
||||
/* Zero memory */
|
||||
memset(context, 0, sizeof(uSynergyContext));
|
||||
|
||||
/* Initialize to default state */
|
||||
sSetDisconnected(context);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
@brief Update uSynergy
|
||||
**/
|
||||
void uSynergyUpdate(uSynergyContext *context)
|
||||
{
|
||||
if (context->m_connected)
|
||||
{
|
||||
/* Update context, receive data, call callbacks */
|
||||
sUpdateContext(context);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Try to connect */
|
||||
if (context->m_connectFunc(context->m_cookie))
|
||||
context->m_connected = USYNERGY_TRUE;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Send clipboard data
|
||||
**/
|
||||
void uSynergySendClipboard(uSynergyContext *context, const char *text)
|
||||
{
|
||||
// Calculate maximum size that will fit in a reply packet
|
||||
uint32_t overhead_size = 4 + /* Message size */
|
||||
4 + /* Message ID */
|
||||
1 + /* Clipboard index */
|
||||
4 + /* Sequence number */
|
||||
4 + /* Rest of message size (because it's a Synergy string from here on) */
|
||||
4 + /* Number of clipboard formats */
|
||||
4 + /* Clipboard format */
|
||||
4; /* Clipboard data length */
|
||||
uint32_t max_length = USYNERGY_REPLY_BUFFER_SIZE - overhead_size;
|
||||
|
||||
// Clip text to max length
|
||||
uint32_t text_length = (uint32_t)strlen(text);
|
||||
if (text_length > max_length)
|
||||
{
|
||||
sTrace(context, "Clipboard buffer too small, clipboard truncated at %d characters", max_length);
|
||||
text_length = max_length;
|
||||
}
|
||||
|
||||
// Assemble packet
|
||||
sAddString(context, "DCLP");
|
||||
sAddUInt8(context, 0); /* Clipboard index */
|
||||
sAddUInt32(context, context->m_sequenceNumber);
|
||||
sAddUInt32(context, 4+4+4+text_length); /* Rest of message size: numFormats, format, length, data */
|
||||
sAddUInt32(context, 1); /* Number of formats (only text for now) */
|
||||
sAddUInt32(context, USYNERGY_CLIPBOARD_FORMAT_TEXT);
|
||||
sAddUInt32(context, text_length);
|
||||
sAddString(context, text);
|
||||
sSendReply(context);
|
||||
}
|
||||
|
|
@ -0,0 +1,400 @@
|
|||
/*
|
||||
uSynergy client -- Interface for the embedded Synergy client library
|
||||
version 1.0.0, July 7th, 2012
|
||||
|
||||
Copyright (c) 2012 Alex Evans
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
|
||||
3. This notice may not be removed or altered from any source
|
||||
distribution.
|
||||
*/
|
||||
#include <stdint.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
// Configuration
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Determine endianness
|
||||
**/
|
||||
#if defined(USYNERGY_LITTLE_ENDIAN) && defined(USYNERGY_BIG_ENDIAN)
|
||||
/* Ambiguous: both endians specified */
|
||||
#error "Can't define both USYNERGY_LITTLE_ENDIAN and USYNERGY_BIG_ENDIAN"
|
||||
#elif !defined(USYNERGY_LITTLE_ENDIAN) && !defined(USYNERGY_BIG_ENDIAN)
|
||||
/* Attempt to auto detect */
|
||||
#if defined(__LITTLE_ENDIAN__) || defined(LITTLE_ENDIAN) || (_BYTE_ORDER == _LITTLE_ENDIAN)
|
||||
#define USYNERGY_LITTLE_ENDIAN
|
||||
#elif defined(__BIG_ENDIAN__) || defined(BIG_ENDIAN) || (_BYTE_ORDER == _BIG_ENDIAN)
|
||||
#define USYNERGY_BIG_ENDIAN
|
||||
#else
|
||||
#error "Can't detect endian-nes, please defined either USYNERGY_LITTLE_ENDIAN or USYNERGY_BIG_ENDIAN";
|
||||
#endif
|
||||
#else
|
||||
/* User-specified endian-nes, nothing to do for us */
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
// Types and Constants
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Boolean type
|
||||
**/
|
||||
typedef int uSynergyBool;
|
||||
#define USYNERGY_FALSE 0 /* False value */
|
||||
#define USYNERGY_TRUE 1 /* True value */
|
||||
|
||||
|
||||
/**
|
||||
@brief User context type
|
||||
|
||||
The uSynergyCookie type is an opaque type that is used by uSynergy to communicate to the client. It is passed along to
|
||||
callback functions as context.
|
||||
**/
|
||||
typedef struct { int ignored; } * uSynergyCookie;
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Clipboard types
|
||||
**/
|
||||
enum uSynergyClipboardFormat
|
||||
{
|
||||
USYNERGY_CLIPBOARD_FORMAT_TEXT = 0, /* Text format, UTF-8, newline is LF */
|
||||
USYNERGY_CLIPBOARD_FORMAT_BITMAP = 1, /* Bitmap format, BMP 24/32bpp, BI_RGB */
|
||||
USYNERGY_CLIPBOARD_FORMAT_HTML = 2, /* HTML format, HTML fragment, UTF-8, newline is LF */
|
||||
};
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Constants and limits
|
||||
**/
|
||||
#define USYNERGY_NUM_JOYSTICKS 4 /* Maximum number of supported joysticks */
|
||||
|
||||
#define USYNERGY_PROTOCOL_MAJOR 1 /* Major protocol version */
|
||||
#define USYNERGY_PROTOCOL_MINOR 4 /* Minor protocol version */
|
||||
|
||||
#define USYNERGY_IDLE_TIMEOUT 2000 /* Timeout in milliseconds before reconnecting */
|
||||
|
||||
#define USYNERGY_TRACE_BUFFER_SIZE 1024 /* Maximum length of traced message */
|
||||
#define USYNERGY_REPLY_BUFFER_SIZE 1024 /* Maximum size of a reply packet */
|
||||
#define USYNERGY_RECEIVE_BUFFER_SIZE 4096 /* Maximum size of an incoming packet */
|
||||
|
||||
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
// Functions and Callbacks
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Connect function
|
||||
|
||||
This function is called when uSynergy needs to connect to the host. It doesn't imply a network implementation or
|
||||
destination address, that must all be handled on the user side. The function should return USYNERGY_TRUE if a
|
||||
connection was established or USYNERGY_FALSE if it could not connect.
|
||||
|
||||
When network errors occur (e.g. uSynergySend or uSynergyReceive fail) then the connect call will be called again
|
||||
so the implementation of the function must close any old connections and clean up resources before retrying.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
**/
|
||||
typedef uSynergyBool (*uSynergyConnectFunc)(uSynergyCookie cookie);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Send function
|
||||
|
||||
This function is called when uSynergy needs to send something over the default connection. It should return
|
||||
USYNERGY_TRUE if sending succeeded and USYNERGY_FALSE otherwise. This function should block until the send
|
||||
operation is completed.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param buffer Address of buffer to send
|
||||
@param length Length of buffer to send
|
||||
**/
|
||||
typedef uSynergyBool (*uSynergySendFunc)(uSynergyCookie cookie, const uint8_t *buffer, int length);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Receive function
|
||||
|
||||
This function is called when uSynergy needs to receive data from the default connection. It should return
|
||||
USYNERGY_TRUE if receiving data succeeded and USYNERGY_FALSE otherwise. This function should block until data
|
||||
has been received and wait for data to become available. If @a outLength is set to 0 upon completion it is
|
||||
assumed that the connection is alive, but still in a connecting state and needs time to settle.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param buffer Address of buffer to receive data into
|
||||
@param maxLength Maximum amount of bytes to write into the receive buffer
|
||||
@param outLength Address of integer that receives the actual amount of bytes written into @a buffer
|
||||
**/
|
||||
typedef uSynergyBool (*uSynergyReceiveFunc)(uSynergyCookie cookie, uint8_t *buffer, int maxLength, int* outLength);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Thread sleep function
|
||||
|
||||
This function is called when uSynergy wants to suspend operation for a while before retrying an operation. It
|
||||
is mostly used when a socket times out or disconnect occurs to prevent uSynergy from continuously hammering a
|
||||
network connection in case the network is down.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param timeMs Time to sleep the current thread (in milliseconds)
|
||||
**/
|
||||
typedef void (*uSynergySleepFunc)(uSynergyCookie cookie, int timeMs);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Get time function
|
||||
|
||||
This function is called when uSynergy needs to know the current time. This is used to determine when timeouts
|
||||
have occured. The time base should be a cyclic millisecond time value.
|
||||
|
||||
@returns Time value in milliseconds
|
||||
**/
|
||||
typedef uint32_t (*uSynergyGetTimeFunc)();
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Trace function
|
||||
|
||||
This function is called when uSynergy wants to trace something. It is optional to show these messages, but they
|
||||
are often useful when debugging. uSynergy only traces major events like connecting and disconnecting. Usually
|
||||
only a single trace is shown when the connection is established and no more trace are called.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param text Text to be traced
|
||||
**/
|
||||
typedef void (*uSynergyTraceFunc)(uSynergyCookie cookie, const char *text);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Screen active callback
|
||||
|
||||
This callback is called when Synergy makes the screen active or inactive. This
|
||||
callback is usually sent when the mouse enters or leaves the screen.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param active Activation flag, 1 if the screen has become active, 0 if the screen has become inactive
|
||||
**/
|
||||
typedef void (*uSynergyScreenActiveCallback)(uSynergyCookie cookie, uSynergyBool active);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Mouse callback
|
||||
|
||||
This callback is called when a mouse events happens. The mouse X and Y position,
|
||||
wheel and button state is communicated in the message. It's up to the user to
|
||||
interpret if this is a mouse up, down, double-click or other message.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param x Mouse X position
|
||||
@param y Mouse Y position
|
||||
@param wheelX Mouse wheel X position
|
||||
@param wheelY Mouse wheel Y position
|
||||
@param buttonLeft Left button pressed status, 0 for released, 1 for pressed
|
||||
@param buttonMiddle Middle button pressed status, 0 for released, 1 for pressed
|
||||
@param buttonRight Right button pressed status, 0 for released, 1 for pressed
|
||||
**/
|
||||
typedef void (*uSynergyMouseCallback)(uSynergyCookie cookie, uint16_t x, uint16_t y, int16_t wheelX, int16_t wheelY, uSynergyBool buttonLeft, uSynergyBool buttonRight, uSynergyBool buttonMiddle);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Key event callback
|
||||
|
||||
This callback is called when a key is pressed or released.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param key Key code of key that was pressed or released
|
||||
@param down Down or up status, 1 is key is pressed down, 0 if key is released (up)
|
||||
@param repeat Repeat flag, 1 if the key is down because the key is repeating, 0 if the key is initially pressed by the user
|
||||
**/
|
||||
typedef void (*uSynergyKeyboardCallback)(uSynergyCookie cookie, uint16_t key, uSynergyBool down, uSynergyBool repeat);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Joystick event callback
|
||||
|
||||
This callback is called when a joystick stick or button changes. It is possible that multiple callbacks are
|
||||
fired when different sticks or buttons change as these are individual messages in the packet stream. Each
|
||||
callback will contain all the valid state for the different axes and buttons. The last callback received will
|
||||
represent the most current joystick state.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param joyNum Joystick number, always in the range [0 ... USYNERGY_NUM_JOYSTICKS>
|
||||
@param buttons Button pressed mask
|
||||
@param leftStickX Left stick X position, in range [-127 ... 127]
|
||||
@param leftStickY Left stick Y position, in range [-127 ... 127]
|
||||
@param rightStickX Right stick X position, in range [-127 ... 127]
|
||||
@param rightStickY Right stick Y position, in range [-127 ... 127]
|
||||
**/
|
||||
typedef void (*uSynergyJoystickCallback)(uSynergyCookie cookie, uint8_t joyNum, uint16_t buttons, int8_t leftStickX, int8_t leftStickY, int8_t rightStickX, int8_t rightStickY);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Clipboard event callback
|
||||
|
||||
This callback is called when something is placed on the clipboard. Multiple callbacks may be fired for
|
||||
multiple clipboard formats if they are supported. The data provided is read-only and may not be modified
|
||||
by the application.
|
||||
|
||||
@param cookie Cookie supplied in the Synergy context
|
||||
@param format Clipboard format
|
||||
@param data Memory area containing the clipboard raw data
|
||||
@param size Size of clipboard data
|
||||
**/
|
||||
typedef void (*uSynergyClipboardCallback)(uSynergyCookie cookie, enum uSynergyClipboardFormat format, const uint8_t *data, uint32_t size);
|
||||
|
||||
|
||||
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
// Context
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief uSynergy context
|
||||
**/
|
||||
typedef struct
|
||||
{
|
||||
/* Mandatory configuration data, filled in by client */
|
||||
uSynergyConnectFunc m_connectFunc; /* Connect function */
|
||||
uSynergySendFunc m_sendFunc; /* Send data function */
|
||||
uSynergyReceiveFunc m_receiveFunc; /* Receive data function */
|
||||
uSynergySleepFunc m_sleepFunc; /* Thread sleep function */
|
||||
uSynergyGetTimeFunc m_getTimeFunc; /* Get current time function */
|
||||
const char* m_clientName; /* Name of Synergy Screen / Client */
|
||||
uint16_t m_clientWidth; /* Width of screen */
|
||||
uint16_t m_clientHeight; /* Height of screen */
|
||||
|
||||
/* Optional configuration data, filled in by client */
|
||||
uSynergyCookie m_cookie; /* Cookie pointer passed to callback functions (can be NULL) */
|
||||
uSynergyTraceFunc m_traceFunc; /* Function for tracing status (can be NULL) */
|
||||
uSynergyScreenActiveCallback m_screenActiveCallback; /* Callback for entering and leaving screen */
|
||||
uSynergyMouseCallback m_mouseCallback; /* Callback for mouse events */
|
||||
uSynergyKeyboardCallback m_keyboardCallback; /* Callback for keyboard events */
|
||||
uSynergyJoystickCallback m_joystickCallback; /* Callback for joystick events */
|
||||
uSynergyClipboardCallback m_clipboardCallback; /* Callback for clipboard events */
|
||||
|
||||
/* State data, used internall by client, initialized by uSynergyInit() */
|
||||
uSynergyBool m_connected; /* Is our socket connected? */
|
||||
uSynergyBool m_hasReceivedHello; /* Have we received a 'Hello' from the server? */
|
||||
uSynergyBool m_isCaptured; /* Is Synergy active (i.e. this client is receiving input messages?) */
|
||||
uint32_t m_lastMessageTime; /* Time at which last message was received */
|
||||
uint32_t m_sequenceNumber; /* Packet sequence number */
|
||||
uint8_t m_receiveBuffer[USYNERGY_RECEIVE_BUFFER_SIZE]; /* Receive buffer */
|
||||
int m_receiveOfs; /* Receive buffer offset */
|
||||
uint8_t m_replyBuffer[USYNERGY_REPLY_BUFFER_SIZE]; /* Reply buffer */
|
||||
uint8_t* m_replyCur; /* Write offset into reply buffer */
|
||||
uint16_t m_mouseX; /* Mouse X position */
|
||||
uint16_t m_mouseY; /* Mouse Y position */
|
||||
int16_t m_mouseWheelX; /* Mouse wheel X position */
|
||||
int16_t m_mouseWheelY; /* Mouse wheel Y position */
|
||||
uSynergyBool m_mouseButtonLeft; /* Mouse left button */
|
||||
uSynergyBool m_mouseButtonRight; /* Mouse right button */
|
||||
uSynergyBool m_mouseButtonMiddle; /* Mouse middle button */
|
||||
int8_t m_joystickSticks[USYNERGY_NUM_JOYSTICKS][4]; /* Joystick stick position in 2 axes for 2 sticks */
|
||||
uint16_t m_joystickButtons[USYNERGY_NUM_JOYSTICKS]; /* Joystick button state */
|
||||
} uSynergyContext;
|
||||
|
||||
|
||||
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
// Interface
|
||||
//---------------------------------------------------------------------------------------------------------------------
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Initialize uSynergy context
|
||||
|
||||
This function initializes @a context for use. Call this function directly after
|
||||
creating the context, before filling in any configuration data in it. Not calling
|
||||
this function will cause undefined behavior.
|
||||
|
||||
@param context Context to be initialized
|
||||
**/
|
||||
extern void uSynergyInit(uSynergyContext *context);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Update uSynergy
|
||||
|
||||
This function updates uSynergy and does the bulk of the work. It does connection management,
|
||||
receiving data, reconnecting after errors or timeouts and so on. It assumes that networking
|
||||
operations are blocking and it can suspend the current thread if it needs to wait. It is
|
||||
best practice to call uSynergyUpdate from a background thread so it is responsive.
|
||||
|
||||
Because uSynergy relies mostly on blocking calls it will mostly stay in thread sleep state
|
||||
waiting for system mutexes and won't eat much memory.
|
||||
|
||||
uSynergyUpdate doesn't do any memory allocations or have any side effects beyond those of
|
||||
the callbacks it calls.
|
||||
|
||||
@param context Context to be updated
|
||||
**/
|
||||
extern void uSynergyUpdate(uSynergyContext *context);
|
||||
|
||||
|
||||
|
||||
/**
|
||||
@brief Send clipboard data
|
||||
|
||||
This function sets new clipboard data and sends it to the server. Use this function if
|
||||
your client cuts or copies data onto the clipboard that it needs to share with the
|
||||
server.
|
||||
|
||||
Currently there is only support for plaintext, but HTML and image data could be
|
||||
supported with some effort.
|
||||
|
||||
@param context Context to send clipboard data to
|
||||
@param text Text to set to the clipboard
|
||||
**/
|
||||
extern void uSynergySendClipboard(uSynergyContext *context, const char *text);
|
||||
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
};
|
||||
#endif
|
||||
Loading…
Reference in New Issue