Raspberry Pi Zero W – ページ 3

“AB Shutter 3″という激安Bluetoothシャッターリモコンは多くの方が情報公開されているのでそちらを参照していただくとして．．．

Raspberry Piで使うためにはBlueButtonを使うのが手っ取り早くて簡単なのだが２個あるボタンを判別できないという点が気になったので独自に作成してみた。

実行中のローカル・コンソール・アプリの標準入力へ各ボタンのイベントに設定した文字列、或いは、-cオプションによりコマンドラインから任意の文字列を出力することが可能。実行にはルート権限が必要なことに注意。

AB Shutter 3のイベント処理を行う。
sudo ./abshutter

“quit”を標準入力に出力して終了する。(リモート操作用)
sudo ./abshutter -c quit

【設定ファイル】
※戦闘の<>で囲まれた文字列のみ標準入力に出力し、それ以外はコマンドラインとして実行する。

[program]
cmdline=         実行するアプリのコマンドライン(指定がない場合はスリープ)

[control]
quit=<q>         -c オプションで指定された文字列を変換する設定(-c quit --> "q")

[button-a]
click=<a>        大きいボタン(IOS)をクリックしたとき
long-pressed=    大きいボタン(IOS)を長押ししたとき

[button-b]
click=<b>        小さいボタン(andorid)をクリックしたとき
long-pressed=    小さいボタン(andorid)を長押ししたとき

[program]

cmdline= 実行するアプリのコマンドライン(指定がない場合はスリープ)

[control]

quit=<q> -c オプションで指定された文字列を変換する設定(-c quit --> "q")

[button-a]

click=<a> 大きいボタン(IOS)をクリックしたとき

long-pressed= 大きいボタン(IOS)を長押ししたとき

[button-b]

click=<b> 小さいボタン(andorid)をクリックしたとき

long-pressed= 小さいボタン(andorid)を長押ししたとき

単独実行しておくだけで良いのだがsystemctlなどには登録できない。起動ユーザーのログイン・スクリプトの最後にでも登録しておけばＯＫ。ちなみにbluetoothの接続＆切断にも対応している。

最後の【AB Shutter 3 ペアリング・スクリプト】を使うと自動でペアリングができる。(と思う)

【修正履歴】
2023-04-19
前回改良したところがバグッてたので修正。それとAB Shutter 3の仕様が製品により微妙に異なるようで下記製品にも対応できように改良。ダイソーで売ってたのよりこの製品の仕様のほうがすっきりしていていい感じだ。

日本語パッケージ・説明書付・技適マーク有、正規品】AB SHUTTER 3 スマートフォンカメラ用リモコン

2023-04-15
バグ修正ついでにイベント発生時に標準出力への文字列出力とコマンドライン実行の両方を設定できるように改良。

例: click=<a>cmdline

1	例: click=<a>cmdline

2023-04-13
イベント発生時にコマンドライン実行できるように改良。標準出力に文字列を出力する場合は<>で囲んだ文字列を指定する。

ダイソーから購入したのはボタン認識が出来るがアマゾンで安く売られているのはどちらのボタンも同じコードでボタン認識ができない。外見はそっくりだがダイソーのは技適マーク有りでアマゾンのは技適マーク無しと中身の異なるコピー商品のようだ。

Bluetooth スマートフォン用カメラリモコン AB Shutter 3 【Black】 ABS3-BLK-A

【abshutter ツール】

TARGET   = abshutter
OBJS     = $(TARGET).o

DEPFILES = $(OBJS:%.o=%.d)

CC       = gcc
CPPFLAGS = -MMD
CFLAGS   = -I. -Wall
LDLIBS   = -L. -lstdc++ -lpthread

$(TARGET): $(OBJS)
	$(CC) -o $@ $^ $(LDLIBS)

clean:
	rm -f $(TARGET) $(OBJS) $(DEPFILES)

-include $(DEPFILES)

TARGET = abshutter

OBJS = $(TARGET).o

DEPFILES = $(OBJS:%.o=%.d)

CC = gcc

CPPFLAGS = -MMD

CFLAGS = -I. -Wall

LDLIBS = -L. -lstdc++ -lpthread

$(TARGET): $(OBJS)

$(CC) -o $@ $^ $(LDLIBS)

clean:

rm -f $(TARGET) $(OBJS) $(DEPFILES)

-include $(DEPFILES)

/*
  abshutter.cpp - AB Shutter Tool

  Copyright (c) 2023 Sasapea's Lab. All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General
  Public License along with this library; if not, write to the
  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  Boston, MA  02111-1307  USA
*/
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include "abshutter.h"
#include "fileprops.h"

#define LONGPRESS_TIME 3000000 // us

FileProps  props;
ABShutter3 button;
UInput     uinput;
char       config[PATH_MAX];
int        exitcode;
FILE      *fpout;

void command(const char *str)
{
  if (*str == '<')
  {
    size_t len = strlen(str);
    for (size_t i = 1; i < len; )
    {
      char c = str[i++];
      if (c == '\\')
        i++;
      else if (c == '>')
      {
        if (i > 2)
        {
          if (fpout)
          {
            fwrite(str + 1, 1, i - 2, fpout);
            fflush(fpout);
          }
          else
            uinput.keystr(str + 1, i - 2);
        }
        str += i;
        break;
      }
    }
  }
  if (*str)
    system(str);
}

long subtime(struct timeval &a, struct timeval &b)
{
  return ((long long)a.tv_sec * 1000000 + a.tv_usec) - ((long long)b.tv_sec * 1000000 + b.tv_usec);
}

void input(struct input_event *event, void *arg)
{
  static struct timeval pushed;
  const char *btn, *cmd;

//  printf("code=%d, value=%d\n", event->code, event->value);

  btn = cmd = nullptr;
  switch (event->code)
  {
    case ABShutter3::BUTTON_A:
      btn = "button-a";
      break;
    case ABShutter3::BUTTON_B:
      btn = "button-b";
      break;
  }
  if (event->value)
  {
    cmd = "click";
    pushed = event->time;
  }
  else if (subtime(event->time, pushed) >= LONGPRESS_TIME)
  {
    cmd = "long-pressed";
  }
  if (btn && cmd)
    command(props.getProperty(btn, cmd));
}

void sigint_handler(int signum)
{
  exitcode = 1;
}

void usage(void)
{
  printf("AB Shutter 3 Remote Application Controller, Version 1.00\n");
  printf("\n");
  printf("Usage: abshutter [options]\n");
  printf("\n");
  printf("  options:\n");
  printf("    -p   ...  use popen()\n");
  printf("    -c   ...  command string\n");
  printf("    -h   ...  this help\n");
  printf("\n");
}

int main(int argc, char **argv)
{
  bool optpipe = false;
  //
  // set current directory to running process directory
  //
  snprintf(config, sizeof(config), "%s", argv[0]);
  char *p = strrchr(config, '/');
  if (p)
    *p = 0;
  chdir(config);
  //
  // load properties
  //
  snprintf(config, sizeof(config), "%s.conf", argv[0]);
  props.load(config);
  //
  // command line option
  //
  int opt;
  while ((opt = getopt(argc, argv, "hpc:")) != -1)
  {
    switch (opt)
    {
      case 'p':
        optpipe = true;
        break;
      case 'c':
        uinput.start();
        command(props.getProperty("control", optarg));
        uinput.stop();
        exit(0);
      case 'h':
        usage();
        /* fall through */
      default:
       exit(1);
    }
  }
  //
  // setup signal handler
  //
  struct sigaction nact, oact;
  sigemptyset(&nact.sa_mask);
  nact.sa_handler = sigint_handler;
  nact.sa_flags   = SA_RESTART;
  sigaction(SIGINT , &nact, &oact);
  sigaction(SIGTERM, &nact, &oact);
  //
  // start AB Shutter
  //
  button.callback(input);
  button.start();
  uinput.start();
  //
  // run program
  //
  while (exitcode == 0)
  {
    //
    // reload properties
    //
    props.load(config);
    const char *cmd = props.getProperty("program", "cmdline");
    if (*cmd)
    {
      if (!optpipe)
        system(cmd);
      else if ((fpout = popen(cmd, "w")))
        pclose(fpout);
    }
    sleep(3);
  }
  //
  // stop AB Shutter
  //
  uinput.stop();
  button.stop();
  return exitcode;
}

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abshutter.cpp - AB Shutter Tool

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General

Public License along with this library; if not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330,

Boston, MA 02111-1307 USA

#include <stdio.h>

#include <string.h>

#include <unistd.h>

#include <signal.h>

#include "abshutter.h"

#include "fileprops.h"

#define LONGPRESS_TIME 3000000 // us

FileProps props;

ABShutter3 button;

UInput uinput;

char config[PATH_MAX];

int exitcode;

FILE *fpout;

void command(const char *str)

{

if (*str == '<')

{

size_t len = strlen(str);

for (size_t i = 1; i < len; )

{

char c = str[i++];

if (c == '\\')

i++;

else if (c == '>')

{

if (i > 2)

{

if (fpout)

{

fwrite(str + 1, 1, i - 2, fpout);

fflush(fpout);

}

else

uinput.keystr(str + 1, i - 2);

}

str += i;

break;

}

if (*str)

system(str);

}

long subtime(struct timeval &a, struct timeval &b)

{

return ((long long)a.tv_sec * 1000000 + a.tv_usec) - ((long long)b.tv_sec * 1000000 + b.tv_usec);

}

void input(struct input_event *event, void *arg)

{

static struct timeval pushed;

const char *btn, *cmd;

// printf("code=%d, value=%d\n", event->code, event->value);

btn = cmd = nullptr;

switch (event->code)

{

case ABShutter3::BUTTON_A:

btn = "button-a";

break;

case ABShutter3::BUTTON_B:

btn = "button-b";

break;

}

if (event->value)

{

cmd = "click";

pushed = event->time;

}

else if (subtime(event->time, pushed) >= LONGPRESS_TIME)

{

cmd = "long-pressed";

}

if (btn && cmd)

command(props.getProperty(btn, cmd));

}

void sigint_handler(int signum)

{

exitcode = 1;

}

void usage(void)

{

printf("AB Shutter 3 Remote Application Controller, Version 1.00\n");

printf("\n");

printf("Usage: abshutter [options]\n");

printf("\n");

printf(" options:\n");

printf(" -p ... use popen()\n");

printf(" -c ... command string\n");

printf(" -h ... this help\n");

printf("\n");

}

int main(int argc, char **argv)

{

bool optpipe = false;

// set current directory to running process directory

snprintf(config, sizeof(config), "%s", argv[0]);

char *p = strrchr(config, '/');

if (p)

*p = 0;

chdir(config);

// load properties

snprintf(config, sizeof(config), "%s.conf", argv[0]);

props.load(config);

// command line option

int opt;

while ((opt = getopt(argc, argv, "hpc:")) != -1)

{

switch (opt)

{

case 'p':

optpipe = true;

break;

case 'c':

uinput.start();

command(props.getProperty("control", optarg));

uinput.stop();

exit(0);

case 'h':

usage();

/* fall through */

default:

exit(1);

}

// setup signal handler

struct sigaction nact, oact;

sigemptyset(&nact.sa_mask);

nact.sa_handler = sigint_handler;

nact.sa_flags = SA_RESTART;

sigaction(SIGINT , &nact, &oact);

sigaction(SIGTERM, &nact, &oact);

// start AB Shutter

button.callback(input);

button.start();

uinput.start();

// run program

while (exitcode == 0)

{

// reload properties

props.load(config);

const char *cmd = props.getProperty("program", "cmdline");

if (*cmd)

{

if (!optpipe)

system(cmd);

else if ((fpout = popen(cmd, "w")))

pclose(fpout);

}

sleep(3);

}

// stop AB Shutter

uinput.stop();

button.stop();

return exitcode;

}

/*
  abshutter.h - AB Shutter Library

  Copyright (c) 2023 Sasapea's Lab. All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General
  Public License along with this library; if not, write to the
  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  Boston, MA  02111-1307  USA
*/
#pragma once

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <dirent.h>
#include <pthread.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/input.h>
#include <linux/uinput.h>
#include <string>

typedef void (*input_cb_t)(struct input_event *, void *arg);

class UInput
{
  public:

    UInput(void)
    : _fd(-1)
    {
    }

    virtual ~UInput(void)
    {
      stop();
    }

    void start(void)
    {
      if ((_fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK)) != -1)
      {
        struct uinput_setup usetup;
        memset(&usetup, 0, sizeof(usetup));
        usetup.id.bustype = BUS_USB;
        usetup.id.vendor  = 0x1234; /* sample vendor */
        usetup.id.product = 0x5678; /* sample product */
        strcpy(usetup.name, "Example device");
        ioctl(_fd, UI_SET_EVBIT, EV_KEY);
        for (int i = 0; i < KEY_MAX; ++i)
          ioctl(_fd, UI_SET_KEYBIT, i);
        ioctl(_fd, UI_DEV_SETUP, &usetup);
        ioctl(_fd, UI_DEV_CREATE);
      }
    }

    void stop(void)
    {
      if (_fd != -1)
      {
         ioctl(_fd, UI_DEV_DESTROY);
         close(_fd);
         _fd = -1;
      }
    }

    void keystr(const char *str, bool escape = true)
    {
      keystr(str, strlen(str), escape);
    }

    void keystr(const char *str, size_t len, bool escape = true)
    {
      while (len-- > 0)
      {
        char c = *str++;
        if (escape && (c == '\\'))
        {
          switch (c = *str++)
          {
            case  0 :
            case '0': c = 0; return;
            case 'a': c = '\a'; break; /* 07 */
            case 'b': c = '\b'; break; /* 08 */
            case 't': c = '\t'; break; /* 09 */
            case 'n': c = '\n'; break; /* 0A */
            case 'v': c = '\v'; break; /* 0B */
            case 'f': c = '\f'; break; /* 0C */
            case 'r': c = '\r'; break; /* 0D */
          }
        }
        keychar(c);
      }
    }

    void keychar(char c)
    {
      static const unsigned char KEYCODES[] =
      {
        /* 00 */ KEY_RESERVED,
        /* 01 */ KEY_RESERVED,
        /* 02 */ KEY_RESERVED,
        /* 03 */ KEY_RESERVED,
        /* 04 */ KEY_RESERVED,
        /* 05 */ KEY_RESERVED,
        /* 06 */ KEY_RESERVED,
        /* 07 */ KEY_RESERVED,
        /* 08 */ KEY_RESERVED,
        /* 09 */ KEY_TAB,
        /* 0A */ KEY_LINEFEED,
        /* 0B */ KEY_RESERVED,
        /* 0C */ KEY_RESERVED,
        /* 0D */ KEY_ENTER,
        /* 0E */ KEY_RESERVED,
        /* 0F */ KEY_RESERVED,
        /* 10 */ KEY_RESERVED,
        /* 11 */ KEY_RESERVED,
        /* 12 */ KEY_RESERVED,
        /* 13 */ KEY_RESERVED,
        /* 14 */ KEY_RESERVED,
        /* 15 */ KEY_RESERVED,
        /* 16 */ KEY_RESERVED,
        /* 17 */ KEY_RESERVED,
        /* 18 */ KEY_RESERVED,
        /* 19 */ KEY_RESERVED,
        /* 1A */ KEY_RESERVED,
        /* 1B */ KEY_ESC,
        /* 1C */ KEY_RESERVED,
        /* 1D */ KEY_RESERVED,
        /* 1E */ KEY_RESERVED,
        /* 1F */ KEY_RESERVED,
        /*    */ KEY_SPACE,
        /* !  */ KEY_1 | 0x80,
        /* "  */ KEY_APOSTROPHE | 0x80,
        /* #  */ KEY_3 | 0x80,
        /* $  */ KEY_4 | 0x80,
        /* %  */ KEY_5 | 0x80,
        /* &  */ KEY_7 | 0x80,
        /* '  */ KEY_APOSTROPHE,
        /* (  */ KEY_9 | 0x80,
        /* )  */ KEY_0 | 0x80,
        /* *  */ KEY_8 | 0x80,
        /* +  */ KEY_EQUAL | 0x80,
        /* ,  */ KEY_COMMA,
        /* -  */ KEY_MINUS,
        /* .  */ KEY_DOT,
        /* /  */ KEY_SLASH,
        /* 0  */ KEY_0,
        /* 1  */ KEY_1,
        /* 2  */ KEY_2,
        /* 3  */ KEY_3,
        /* 4  */ KEY_4,
        /* 5  */ KEY_5,
        /* 6  */ KEY_6,
        /* 7  */ KEY_7,
        /* 8  */ KEY_8,
        /* 9  */ KEY_9,
        /* :  */ KEY_SEMICOLON | 0x80,
        /* ;  */ KEY_SEMICOLON,
        /* <  */ KEY_COMMA | 0x80,
        /* =  */ KEY_EQUAL,
        /* >  */ KEY_DOT | 0x80,
        /* ?  */ KEY_SLASH | 0x80,
        /* @  */ KEY_2 | 0x80,
        /* A  */ KEY_A | 0x80,
        /* B  */ KEY_B | 0x80,
        /* C  */ KEY_C | 0x80,
        /* D  */ KEY_D | 0x80,
        /* E  */ KEY_E | 0x80,
        /* F  */ KEY_F | 0x80,
        /* G  */ KEY_G | 0x80,
        /* H  */ KEY_H | 0x80,
        /* I  */ KEY_I | 0x80,
        /* J  */ KEY_J | 0x80,
        /* K  */ KEY_K | 0x80,
        /* L  */ KEY_L | 0x80,
        /* M  */ KEY_M | 0x80,
        /* N  */ KEY_N | 0x80,
        /* O  */ KEY_O | 0x80,
        /* P  */ KEY_P | 0x80,
        /* Q  */ KEY_Q | 0x80,
        /* R  */ KEY_R | 0x80,
        /* S  */ KEY_S | 0x80,
        /* T  */ KEY_T | 0x80,
        /* U  */ KEY_U | 0x80,
        /* V  */ KEY_V | 0x80,
        /* W  */ KEY_W | 0x80,
        /* X  */ KEY_X | 0x80,
        /* Y  */ KEY_Y | 0x80,
        /* Z  */ KEY_Z | 0x80,
        /* [  */ KEY_LEFTBRACE,
        /* \  */ KEY_BACKSLASH,
        /* ]  */ KEY_RIGHTBRACE,
        /* ^  */ KEY_6 | 0x80,
        /* _  */ KEY_MINUS | 0x80,
        /* `  */ KEY_GRAVE,
        /* a  */ KEY_A,
        /* b  */ KEY_B,
        /* c  */ KEY_C,
        /* d  */ KEY_D,
        /* e  */ KEY_E,
        /* f  */ KEY_F,
        /* g  */ KEY_G,
        /* h  */ KEY_H,
        /* i  */ KEY_I,
        /* j  */ KEY_J,
        /* k  */ KEY_K,
        /* l  */ KEY_L,
        /* m  */ KEY_M,
        /* n  */ KEY_N,
        /* o  */ KEY_O,
        /* p  */ KEY_P,
        /* q  */ KEY_Q,
        /* r  */ KEY_R,
        /* s  */ KEY_S,
        /* t  */ KEY_T,
        /* u  */ KEY_U,
        /* v  */ KEY_V,
        /* w  */ KEY_W,
        /* x  */ KEY_X,
        /* y  */ KEY_Y,
        /* z  */ KEY_Z,
        /* {  */ KEY_LEFTBRACE | 0x80,
        /* |  */ KEY_BACKSLASH | 0x80,
        /* }  */ KEY_RIGHTBRACE | 0x80,
        /* ~  */ KEY_GRAVE | 0x80,
      };

      if (c < sizeof(KEYCODES) / sizeof(KEYCODES[0]))
      {
        c = KEYCODES[c];
        if (c & 0x80)
        {
          keyctl(KEY_LEFTSHIFT, 1);
          keycode(c & ~0x80);
          keyctl(KEY_LEFTSHIFT, 0);
        }
        else if (c)
          keycode(c);
      }
    }

    void keycode(int code)
    {
      keyctl(code, 1);
      keyctl(code, 0);
    }

    void keyctl(int code, int value)
    {
      emit(EV_KEY, code, value);
      emit(EV_SYN, SYN_REPORT, 0);
    }

  private:

    void emit(int type, int code, int val)
    {
       struct input_event ie;
       ie.type  = type;
       ie.code  = code;
       ie.value = val;
       /* timestamp values below are ignored */
       ie.time.tv_sec  = 0;
       ie.time.tv_usec = 0;
       write(_fd, &ie, sizeof(ie));
    }

    int _fd;
};

class Input
{
  public:

    Input(void)
    : _thid(0)
    , _fd(-1)
    , _enable(false)
    , _callback(nullptr)
    {
    }

    virtual ~Input(void)
    {
      stop();
    }

    void callback(input_cb_t cb, void *arg = nullptr)
    {
      _callback = cb;
      _argument = arg;

    }

    bool start(const char *name1, const char *name2)
    {
      _name1 = name1;
      _name2 = name2;
      return _enable = (pthread_create(&_thid, NULL, run0, this) == 0);
    }

    void stop(void)
    {
      stop0();
      _enable = false;
    }

  private:

    void stop0(void)
    {
      if (_fd != -1)
      {
        ioctl(_fd, EVIOCGRAB, 0);
        close(_fd);
        _fd = -1;
      }
    }

    static
    bool device(const char *name1, const char *name2, char *path)
    {
      int fd;
      DIR *dir;
      struct dirent *entry;
      char *p, device[128];
      bool found = false;

      strcpy(path, "/sys/class/input/");
      p = path + strlen(path);
      if ((dir = opendir(path)))
      {
        while((entry = readdir(dir)))
        {
          if ((entry->d_type == DT_LNK) && (strncmp(entry->d_name, "event", 5) == 0))
          {
            sprintf(p, "%s/device/name", entry->d_name);
            device[0] = 0;
            if ((fd = open(path, O_RDONLY)))
            {
              read(fd, device, sizeof(device));
              close(fd);
            }
            if (strstr(device, name1) && strstr(device, name2))
            {
              sprintf(path, "/dev/input/%s", entry->d_name);
              found = true;
              break;
            }
          }
        }
        closedir(dir);
      }
      if (!found)
        *path = 0;
      return found;
    }

    void run(void)
    {
      char path[PATH_MAX];
      struct input_event input;
      ssize_t n;

      while (_enable)
      {
        if (_fd != -1)
        {
          while ((n = read(_fd, &input, sizeof(input))) == sizeof(input))
          {
            if (_callback)
              _callback(&input, _argument);
          }
          if (n <= 0)
            stop0();
        }
        else
        {
          usleep(300000); // 300ms
          if (device(_name1.c_str(), _name2.c_str(), path))
          {
            if ((_fd = open(path, O_RDONLY)) == -1)
              printf("[ERROR] open(\"%s\"): %s\n", path, strerror(errno));
            else
              ioctl(_fd, EVIOCGRAB, 1);
          }
        }
      }
    }

    static
    void *run0(void *arg)
    {
      ((Input *)arg)->run();
      return NULL;
    }

    std::string _name1;
    std::string _name2;
    pthread_t   _thid;
    int         _fd;
    bool        _enable;
    input_cb_t  _callback;
    void       *_argument;
};

class ABShutter3
{
  public:

    static const int BUTTON_A = KEY_VOLUMEUP;
    static const int BUTTON_B = KEY_ENTER;

    ABShutter3(void)
    : _callback(nullptr)
    , _argument(nullptr)
    , _buttun_b(0)
    {
      _input1.callback(input0, this);
      _input2.callback(input0, this);
    }

    virtual ~ABShutter3(void)
    {
      stop();
    }

    void callback(input_cb_t cb, void *arg = nullptr)
    {
      _callback = cb;
      _argument = arg;
    }

    void start(void)
    {
      _input1.start("AB Shutter", "Keyboard"); // KEY_ENTER    (28)
      _input2.start("AB Shutter", "Control" ); // KEY_VOLUMEUP (115)
    }

    void stop(void)
    {
      _input2.stop();
      _input1.stop();
    }

  private:

    void input(struct input_event *event)
    {
      if ((event->type == EV_KEY) && (event->value <= 1))
      {
        // printf("code=%d, value=%d\n", event->code, event->value);
        if ((event->code == BUTTON_B) || (_buttun_b == 0))
        {
          if (_callback)
            _callback(event, _argument);
        }
        if (event->code == BUTTON_B)
          _buttun_b = event->value;
      }
    }

    static
    void input0(struct input_event *event, void *arg)
    {
      ((ABShutter3 *)arg)->input(event);
    }

    Input      _input1;
    Input      _input2;
    input_cb_t _callback;
    void      *_argument;
    int        _buttun_b;
};

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abshutter.h - AB Shutter Library

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General

Public License along with this library; if not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330,

Boston, MA 02111-1307 USA

#pragma once

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <dirent.h>

#include <pthread.h>

#include <fcntl.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <linux/input.h>

#include <linux/uinput.h>

#include <string>

typedef void (*input_cb_t)(struct input_event *, void *arg);

class UInput

{

public:

UInput(void)

: _fd(-1)

{

}

virtual ~UInput(void)

{

stop();

}

void start(void)

{

if ((_fd = open("/dev/uinput", O_WRONLY | O_NONBLOCK)) != -1)

{

struct uinput_setup usetup;

memset(&usetup, 0, sizeof(usetup));

usetup.id.bustype = BUS_USB;

usetup.id.vendor = 0x1234; /* sample vendor */

usetup.id.product = 0x5678; /* sample product */

strcpy(usetup.name, "Example device");

ioctl(_fd, UI_SET_EVBIT, EV_KEY);

for (int i = 0; i < KEY_MAX; ++i)

ioctl(_fd, UI_SET_KEYBIT, i);

ioctl(_fd, UI_DEV_SETUP, &usetup);

ioctl(_fd, UI_DEV_CREATE);

}

void stop(void)

{

if (_fd != -1)

{

ioctl(_fd, UI_DEV_DESTROY);

close(_fd);

_fd = -1;

}

void keystr(const char *str, bool escape = true)

{

keystr(str, strlen(str), escape);

}

void keystr(const char *str, size_t len, bool escape = true)

{

while (len-- > 0)

{

char c = *str++;

if (escape && (c == '\\'))

{

switch (c = *str++)

{

case 0 :

case '0': c = 0; return;

case 'a': c = '\a'; break; /* 07 */

case 'b': c = '\b'; break; /* 08 */

case 't': c = '\t'; break; /* 09 */

case 'n': c = '\n'; break; /* 0A */

case 'v': c = '\v'; break; /* 0B */

case 'f': c = '\f'; break; /* 0C */

case 'r': c = '\r'; break; /* 0D */

}

keychar(c);

}

void keychar(char c)

{

static const unsigned char KEYCODES[] =

{

/* 00 */ KEY_RESERVED,

/* 01 */ KEY_RESERVED,

/* 02 */ KEY_RESERVED,

/* 03 */ KEY_RESERVED,

/* 04 */ KEY_RESERVED,

/* 05 */ KEY_RESERVED,

/* 06 */ KEY_RESERVED,

/* 07 */ KEY_RESERVED,

/* 08 */ KEY_RESERVED,

/* 09 */ KEY_TAB,

/* 0A */ KEY_LINEFEED,

/* 0B */ KEY_RESERVED,

/* 0C */ KEY_RESERVED,

/* 0D */ KEY_ENTER,

/* 0E */ KEY_RESERVED,

/* 0F */ KEY_RESERVED,

/* 10 */ KEY_RESERVED,

/* 11 */ KEY_RESERVED,

/* 12 */ KEY_RESERVED,

/* 13 */ KEY_RESERVED,

/* 14 */ KEY_RESERVED,

/* 15 */ KEY_RESERVED,

/* 16 */ KEY_RESERVED,

/* 17 */ KEY_RESERVED,

/* 18 */ KEY_RESERVED,

/* 19 */ KEY_RESERVED,

/* 1A */ KEY_RESERVED,

/* 1B */ KEY_ESC,

/* 1C */ KEY_RESERVED,

/* 1D */ KEY_RESERVED,

/* 1E */ KEY_RESERVED,

/* 1F */ KEY_RESERVED,

/* */ KEY_SPACE,

/* ! */ KEY_1 | 0x80,

/* " */ KEY_APOSTROPHE | 0x80,

/* # */ KEY_3 | 0x80,

/* $ */ KEY_4 | 0x80,

/* % */ KEY_5 | 0x80,

/* & */ KEY_7 | 0x80,

/* ' */ KEY_APOSTROPHE,

/* ( */ KEY_9 | 0x80,

/* ) */ KEY_0 | 0x80,

/* * */ KEY_8 | 0x80,

/* + */ KEY_EQUAL | 0x80,

/* , */ KEY_COMMA,

/* - */ KEY_MINUS,

/* . */ KEY_DOT,

/* / */ KEY_SLASH,

/* 0 */ KEY_0,

/* 1 */ KEY_1,

/* 2 */ KEY_2,

/* 3 */ KEY_3,

/* 4 */ KEY_4,

/* 5 */ KEY_5,

/* 6 */ KEY_6,

/* 7 */ KEY_7,

/* 8 */ KEY_8,

/* 9 */ KEY_9,

/* : */ KEY_SEMICOLON | 0x80,

/* ; */ KEY_SEMICOLON,

/* < */ KEY_COMMA | 0x80,

/* = */ KEY_EQUAL,

/* > */ KEY_DOT | 0x80,

/* ? */ KEY_SLASH | 0x80,

/* @ */ KEY_2 | 0x80,

/* A */ KEY_A | 0x80,

/* B */ KEY_B | 0x80,

/* C */ KEY_C | 0x80,

/* D */ KEY_D | 0x80,

/* E */ KEY_E | 0x80,

/* F */ KEY_F | 0x80,

/* G */ KEY_G | 0x80,

/* H */ KEY_H | 0x80,

/* I */ KEY_I | 0x80,

/* J */ KEY_J | 0x80,

/* K */ KEY_K | 0x80,

/* L */ KEY_L | 0x80,

/* M */ KEY_M | 0x80,

/* N */ KEY_N | 0x80,

/* O */ KEY_O | 0x80,

/* P */ KEY_P | 0x80,

/* Q */ KEY_Q | 0x80,

/* R */ KEY_R | 0x80,

/* S */ KEY_S | 0x80,

/* T */ KEY_T | 0x80,

/* U */ KEY_U | 0x80,

/* V */ KEY_V | 0x80,

/* W */ KEY_W | 0x80,

/* X */ KEY_X | 0x80,

/* Y */ KEY_Y | 0x80,

/* Z */ KEY_Z | 0x80,

/* [ */ KEY_LEFTBRACE,

/* \ */ KEY_BACKSLASH,

/* ] */ KEY_RIGHTBRACE,

/* ^ */ KEY_6 | 0x80,

/* _ */ KEY_MINUS | 0x80,

/* ` */ KEY_GRAVE,

/* a */ KEY_A,

/* b */ KEY_B,

/* c */ KEY_C,

/* d */ KEY_D,

/* e */ KEY_E,

/* f */ KEY_F,

/* g */ KEY_G,

/* h */ KEY_H,

/* i */ KEY_I,

/* j */ KEY_J,

/* k */ KEY_K,

/* l */ KEY_L,

/* m */ KEY_M,

/* n */ KEY_N,

/* o */ KEY_O,

/* p */ KEY_P,

/* q */ KEY_Q,

/* r */ KEY_R,

/* s */ KEY_S,

/* t */ KEY_T,

/* u */ KEY_U,

/* v */ KEY_V,

/* w */ KEY_W,

/* x */ KEY_X,

/* y */ KEY_Y,

/* z */ KEY_Z,

/* { */ KEY_LEFTBRACE | 0x80,

/* | */ KEY_BACKSLASH | 0x80,

/* } */ KEY_RIGHTBRACE | 0x80,

/* ~ */ KEY_GRAVE | 0x80,

};

if (c < sizeof(KEYCODES) / sizeof(KEYCODES[0]))

{

c = KEYCODES[c];

if (c & 0x80)

{

keyctl(KEY_LEFTSHIFT, 1);

keycode(c & ~0x80);

keyctl(KEY_LEFTSHIFT, 0);

}

else if (c)

keycode(c);

}

void keycode(int code)

{

keyctl(code, 1);

keyctl(code, 0);

}

void keyctl(int code, int value)

{

emit(EV_KEY, code, value);

emit(EV_SYN, SYN_REPORT, 0);

}

private:

void emit(int type, int code, int val)

{

struct input_event ie;

ie.type = type;

ie.code = code;

ie.value = val;

/* timestamp values below are ignored */

ie.time.tv_sec = 0;

ie.time.tv_usec = 0;

write(_fd, &ie, sizeof(ie));

}

int _fd;

};

class Input

{

public:

Input(void)

: _thid(0)

, _fd(-1)

, _enable(false)

, _callback(nullptr)

{

}

virtual ~Input(void)

{

stop();

}

void callback(input_cb_t cb, void *arg = nullptr)

{

_callback = cb;

_argument = arg;

}

bool start(const char *name1, const char *name2)

{

_name1 = name1;

_name2 = name2;

return _enable = (pthread_create(&_thid, NULL, run0, this) == 0);

}

void stop(void)

{

stop0();

_enable = false;

}

private:

void stop0(void)

{

if (_fd != -1)

{

ioctl(_fd, EVIOCGRAB, 0);

close(_fd);

_fd = -1;

}

static

bool device(const char *name1, const char *name2, char *path)

{

int fd;

DIR *dir;

struct dirent *entry;

char *p, device[128];

bool found = false;

strcpy(path, "/sys/class/input/");

p = path + strlen(path);

if ((dir = opendir(path)))

{

while((entry = readdir(dir)))

{

if ((entry->d_type == DT_LNK) && (strncmp(entry->d_name, "event", 5) == 0))

{

sprintf(p, "%s/device/name", entry->d_name);

device[0] = 0;

if ((fd = open(path, O_RDONLY)))

{

read(fd, device, sizeof(device));

close(fd);

}

if (strstr(device, name1) && strstr(device, name2))

{

sprintf(path, "/dev/input/%s", entry->d_name);

found = true;

break;

}

closedir(dir);

}

if (!found)

*path = 0;

return found;

}

void run(void)

{

char path[PATH_MAX];

struct input_event input;

ssize_t n;

while (_enable)

{

if (_fd != -1)

{

while ((n = read(_fd, &input, sizeof(input))) == sizeof(input))

{

if (_callback)

_callback(&input, _argument);

}

if (n <= 0)

stop0();

}

else

{

usleep(300000); // 300ms

if (device(_name1.c_str(), _name2.c_str(), path))

{

if ((_fd = open(path, O_RDONLY)) == -1)

printf("[ERROR] open(\"%s\"): %s\n", path, strerror(errno));

else

ioctl(_fd, EVIOCGRAB, 1);

}

static

void *run0(void *arg)

{

((Input *)arg)->run();

return NULL;

}

std::string _name1;

std::string _name2;

pthread_t _thid;

int _fd;

bool _enable;

input_cb_t _callback;

void *_argument;

};

class ABShutter3

{

public:

static const int BUTTON_A = KEY_VOLUMEUP;

static const int BUTTON_B = KEY_ENTER;

ABShutter3(void)

: _callback(nullptr)

, _argument(nullptr)

, _buttun_b(0)

{

_input1.callback(input0, this);

_input2.callback(input0, this);

}

virtual ~ABShutter3(void)

{

stop();

}

void callback(input_cb_t cb, void *arg = nullptr)

{

_callback = cb;

_argument = arg;

}

void start(void)

{

_input1.start("AB Shutter", "Keyboard"); // KEY_ENTER (28)

_input2.start("AB Shutter", "Control" ); // KEY_VOLUMEUP (115)

}

void stop(void)

{

_input2.stop();

_input1.stop();

}

private:

void input(struct input_event *event)

{

if ((event->type == EV_KEY) && (event->value <= 1))

{

// printf("code=%d, value=%d\n", event->code, event->value);

if ((event->code == BUTTON_B) || (_buttun_b == 0))

{

if (_callback)

_callback(event, _argument);

}

if (event->code == BUTTON_B)

_buttun_b = event->value;

}

static

void input0(struct input_event *event, void *arg)

{

((ABShutter3 *)arg)->input(event);

}

Input _input1;

Input _input2;

input_cb_t _callback;

void *_argument;

int _buttun_b;

};

/*
  filepros.h - File Properties Library

  Copyright (c) 2023 Sasapea's Lab. All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General
  Public License along with this library; if not, write to the
  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  Boston, MA  02111-1307  USA
*/
#pragma once

#include <stdio.h>
#include "properties.h"

class FileProps : public Properties
{
  public:

    FileProps(void)
    {
    }

    virtual ~FileProps(void)
    {
    }

    bool load(const char* path) override
    {
      bool rv = false;
      FILE *fp = fopen(path, "r");
      if (fp)
      {
        char buf[256];
        clear();
        rv = true;
        while (rv)
        {
          size_t len = fread(buf, 1, sizeof(buf), fp);
          if (len == 0)
            break;
          rv = parse(buf, len);
        }
        finish();
        fclose(fp);
      }
      return rv;
    }

    bool save(const char* path, const char* header = nullptr) override
    {
      bool rv = false;
      FILE *fp = fopen(path, "w");
      if (fp)
      {
        std::string str;
        toStringWithHeader(str, header);
        rv = fwrite(str.c_str(), 1, str.length(), fp) == str.length();
        fclose(fp);
      }
      return rv;
    }
};

filepros.h - File Properties Library

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General

Public License along with this library; if not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330,

Boston, MA 02111-1307 USA

#pragma once

#include <stdio.h>

#include "properties.h"

class FileProps : public Properties

{

public:

FileProps(void)

{

}

virtual ~FileProps(void)

{

}

bool load(const char* path) override

{

bool rv = false;

FILE *fp = fopen(path, "r");

if (fp)

{

char buf[256];

clear();

rv = true;

while (rv)

{

size_t len = fread(buf, 1, sizeof(buf), fp);

if (len == 0)

break;

rv = parse(buf, len);

}

finish();

fclose(fp);

}

return rv;

}

bool save(const char* path, const char* header = nullptr) override

{

bool rv = false;

FILE *fp = fopen(path, "w");

if (fp)

{

std::string str;

toStringWithHeader(str, header);

rv = fwrite(str.c_str(), 1, str.length(), fp) == str.length();

fclose(fp);

}

return rv;

}

};

/*
  properties.h - Properties Library

  Copyright (c) 2023 Sasapea's Lab. All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General
  Public License along with this library; if not, write to the
  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  Boston, MA  02111-1307  USA
*/
#pragma once

#include <vector>
#include <string>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>

class Properties
{
  private:

    typedef struct
    {
      std::string name;
      std::string value;
    } property_t;

    typedef struct
    {
      std::string name;
      std::vector<property_t> properties;
    } section_t;

    std::vector<section_t> _sections;
    section_t _current;
    std::string _linebuf;

  protected:

    std::string& trim(std::string& str)
    {
      std::string::size_type pos;
      pos = str.find_first_not_of(' ');
      if (pos != std::string::npos)
        str.erase(0, pos);
      pos = str.find_last_not_of(' ');
      if (pos != std::string::npos)
        str.erase(pos + 1);
      return str;
    }

    section_t* getSection(const char* name)
    {
      if (name)
      {
        for (auto sec = _sections.begin(); sec != _sections.end(); ++sec)
        {
          if (strcasecmp(sec->name.c_str(), name) == 0)
            return &*sec;
        }
      }
      return nullptr;
    }

    void setSection(section_t &newSection)
    {
      section_t* sec = getSection(newSection.name.c_str());
      if (!sec)
        _sections.push_back(newSection);
      else
      {
        for (auto prop = newSection.properties.begin(); prop != newSection.properties.end(); ++prop)
          setProperty(*sec, *prop);
      }
    }

    property_t* getProperty(section_t* section, const char* name)
    {
      if (section && name)
      {
        for (auto prop = section->properties.begin(); prop != section->properties.end(); ++prop)
        {
          if (strcasecmp(prop->name.c_str(), name) == 0)
            return &*prop;
        }
      }
      return nullptr;
    }

    void setProperty(section_t &section, property_t &prop)
    {
      trim(prop.name);
      trim(prop.value);
      property_t* exists = getProperty(&section, prop.name.c_str());
      if (exists)
        exists->value = prop.value;
      else
        section.properties.push_back(prop);
    }

    bool parse(const char* buf, size_t len)
    {
      while (len--)
      {
        char c = *buf++;
        if (c >= ' ')
          _linebuf += c;
        else if (c == 0x0A)
        {
          trim(_linebuf);
          if (_linebuf.length())
          {
            c = _linebuf[0];
            if (c == '[')
            {
              if (_linebuf[_linebuf.length() - 1] != ']')
                return false; // format error.
              if (_current.properties.size() || _current.name.length())
                setSection(_current);
              _current.name = _linebuf.substr(1, _linebuf.length() - 2);
              _current.properties.clear();
              trim(_current.name);
            }
            else if ((c != ';') && (c != '#'))
            {
              int sep = _linebuf.find('=');
              if (sep < 0)
                sep = _linebuf.length();
              property_t prop = {_linebuf.substr(0, sep), _linebuf.substr(sep + 1)};
              setProperty(_current, prop);
            }
            _linebuf.clear();
          }
        }
      }
      return true;
    }

    void finish(void)
    {
      if (_current.properties.size() || _current.name.length())
        setSection(_current);
      _current.name.clear();
      _current.properties.clear();
      _linebuf.clear();
    }

  public:

    Properties(void)
    {
    }

    virtual ~Properties(void)
    {
    }

    void clear(void)
    {
      _sections.clear();
      _current.name.clear();
      _current.properties.clear();
      _linebuf.clear();
    }

    std::vector<std::string>& getSectionNames(std::vector<std::string>& names)
    {
      names.clear();
      for (auto sec = _sections.begin(); sec != _sections.end(); ++sec)
        names.push_back(sec->name);
      return names;
    }

    std::vector<std::string>& getPropertyNames(std::vector<std::string>& names, const char* section)
    {
      names.clear();
      section_t* sec = getSection(section);
      if (sec)
      {
        for (auto prop = sec->properties.begin(); prop != sec->properties.end(); ++prop)
          names.push_back(prop->name);
      }
      return names;
    }

    void removeSection(const char* section)
    {
      if (section)
      {
        for (auto sec = _sections.begin(); sec != _sections.end(); ++sec)
        {
          if (strcasecmp(sec->name.c_str(), section) == 0)
          {
            _sections.erase(sec);
            break;
          }
        }
      }
    }

    void removeProperty(const char* section, const char* name)
    {
      if (name)
      {
        section_t* sec = getSection(section);
        if (sec)
        {
          for (auto prop = sec->properties.begin(); prop != sec->properties.end(); ++prop)
          {
            if (strcasecmp(prop->name.c_str(), name) == 0)
            {
              sec->properties.erase(prop);
              break;
            }
          }
        }
      }
    }

    void setProperty(const char* section, const char* name, const char* value)
    {
      if (section && name && value)
      {
        section_t newsec = {section, {{name, value}}};
        setSection(newsec);
      }
    }

    void setPropertyInt(const char* section, const char* name, int value)
    {
      if (section && name)
      {
        char buf[16];
        snprintf(buf, sizeof(buf), "%d", value);
        section_t newsec = {section, {{name, buf}}};
        setSection(newsec);
      }
    }

    void setPropertyI64(const char* section, const char* name, int64_t value)
    {
      if (section && name)
      {
        char buf[128];
        snprintf(buf, sizeof(buf), "%lld", value);
        section_t newsec = {section, {{name, buf}}};
        setSection(newsec);
      }
    }

    const char* getProperty(const char* section, const char* name, const char* defval = "")
    {
      property_t* prop = getProperty(getSection(section), name);
      return prop ? prop->value.c_str() : defval;
    }

    int getPropertyInt(const char* section, const char* name, int defval = 0)
    {
      const char* value = getProperty(section, name);
      return *value ? atoi(value) : defval;
    }

    int getPropertyI64(const char* section, const char* name, int64_t defval = 0)
    {
      const char* value = getProperty(section, name);
      return *value ? strtoll(value, NULL, 10) : defval;
    }

    std::string& toString(std::string &str)
    {
      std::vector<std::string> names;
      std::string props;
      str.clear();
      getSectionNames(names);
      for (auto name = names.begin(); name != names.end(); ++name)
        str.append("[").append(*name).append("]\n").append(toString(props, name->c_str()));
      return str;
    }

    std::string& toString(std::string &str, const char* section)
    {
      if (section == nullptr)
        toString(str);
      else
      {
        std::vector<std::string> names;
        str.clear();
        getPropertyNames(names, section);
        for (auto name = names.begin(); name != names.end(); ++name)
          str.append(*name).append("=").append(getProperty(section, name->c_str())).append("\n");
      }
      return str;
    }

    std::string& toStringWithHeader(std::string &str, const char* header)
    {
      str.clear();
      if (header && *header)
      {
        const char* p;
        const char* q;
        p = q = header;
        do
        {
          if ((*q == 0) || (*q == 0x0A))
          {
            str.append("# ").append(p, (size_t)q - (size_t)p).append("\n");
            p = q + 1;
          }
        }
        while (*q++);
      }
      std::string props;
      return str.append(toString(props));
    }

    virtual bool load(const char* path) = 0;
    virtual bool save(const char* path, const char* header = nullptr) = 0;
};

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properties.h - Properties Library

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General

Public License along with this library; if not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330,

Boston, MA 02111-1307 USA

#pragma once

#include <vector>

#include <string>

#include <string.h>

#include <stdlib.h>

#include <stdint.h>

class Properties

{

private:

typedef struct

{

std::string name;

std::string value;

} property_t;

typedef struct

{

std::string name;

std::vector<property_t> properties;

} section_t;

std::vector<section_t> _sections;

section_t _current;

std::string _linebuf;

protected:

std::string& trim(std::string& str)

{

std::string::size_type pos;

pos = str.find_first_not_of(' ');

if (pos != std::string::npos)

str.erase(0, pos);

pos = str.find_last_not_of(' ');

if (pos != std::string::npos)

str.erase(pos + 1);

return str;

}

section_t* getSection(const char* name)

{

if (name)

{

for (auto sec = _sections.begin(); sec != _sections.end(); ++sec)

{

if (strcasecmp(sec->name.c_str(), name) == 0)

return &*sec;

}

return nullptr;

}

void setSection(section_t &newSection)

{

section_t* sec = getSection(newSection.name.c_str());

if (!sec)

_sections.push_back(newSection);

else

{

for (auto prop = newSection.properties.begin(); prop != newSection.properties.end(); ++prop)

setProperty(*sec, *prop);

}

property_t* getProperty(section_t* section, const char* name)

{

if (section && name)

{

for (auto prop = section->properties.begin(); prop != section->properties.end(); ++prop)

{

if (strcasecmp(prop->name.c_str(), name) == 0)

return &*prop;

}

return nullptr;

}

void setProperty(section_t &section, property_t &prop)

{

trim(prop.name);

trim(prop.value);

property_t* exists = getProperty(&section, prop.name.c_str());

if (exists)

exists->value = prop.value;

else

section.properties.push_back(prop);

}

bool parse(const char* buf, size_t len)

{

while (len--)

{

char c = *buf++;

if (c >= ' ')

_linebuf += c;

else if (c == 0x0A)

{

trim(_linebuf);

if (_linebuf.length())

{

c = _linebuf[0];

if (c == '[')

{

if (_linebuf[_linebuf.length() - 1] != ']')

return false; // format error.

if (_current.properties.size() || _current.name.length())

setSection(_current);

_current.name = _linebuf.substr(1, _linebuf.length() - 2);

_current.properties.clear();

trim(_current.name);

}

else if ((c != ';') && (c != '#'))

{

int sep = _linebuf.find('=');

if (sep < 0)

sep = _linebuf.length();

property_t prop = {_linebuf.substr(0, sep), _linebuf.substr(sep + 1)};

setProperty(_current, prop);

}

_linebuf.clear();

}

return true;

}

void finish(void)

{

if (_current.properties.size() || _current.name.length())

setSection(_current);

_current.name.clear();

_current.properties.clear();

_linebuf.clear();

}

public:

Properties(void)

{

}

virtual ~Properties(void)

{

}

void clear(void)

{

_sections.clear();

_current.name.clear();

_current.properties.clear();

_linebuf.clear();

}

std::vector<std::string>& getSectionNames(std::vector<std::string>& names)

{

names.clear();

for (auto sec = _sections.begin(); sec != _sections.end(); ++sec)

names.push_back(sec->name);

return names;

}

std::vector<std::string>& getPropertyNames(std::vector<std::string>& names, const char* section)

{

names.clear();

section_t* sec = getSection(section);

if (sec)

{

for (auto prop = sec->properties.begin(); prop != sec->properties.end(); ++prop)

names.push_back(prop->name);

}

return names;

}

void removeSection(const char* section)

{

if (section)

{

for (auto sec = _sections.begin(); sec != _sections.end(); ++sec)

{

if (strcasecmp(sec->name.c_str(), section) == 0)

{

_sections.erase(sec);

break;

}

void removeProperty(const char* section, const char* name)

{

if (name)

{

section_t* sec = getSection(section);

if (sec)

{

for (auto prop = sec->properties.begin(); prop != sec->properties.end(); ++prop)

{

if (strcasecmp(prop->name.c_str(), name) == 0)

{

sec->properties.erase(prop);

break;

}

void setProperty(const char* section, const char* name, const char* value)

{

if (section && name && value)

{

section_t newsec = {section, {{name, value}}};

setSection(newsec);

}

void setPropertyInt(const char* section, const char* name, int value)

{

if (section && name)

{

char buf[16];

snprintf(buf, sizeof(buf), "%d", value);

section_t newsec = {section, {{name, buf}}};

setSection(newsec);

}

void setPropertyI64(const char* section, const char* name, int64_t value)

{

if (section && name)

{

char buf[128];

snprintf(buf, sizeof(buf), "%lld", value);

section_t newsec = {section, {{name, buf}}};

setSection(newsec);

}

const char* getProperty(const char* section, const char* name, const char* defval = "")

{

property_t* prop = getProperty(getSection(section), name);

return prop ? prop->value.c_str() : defval;

}

int getPropertyInt(const char* section, const char* name, int defval = 0)

{

const char* value = getProperty(section, name);

return *value ? atoi(value) : defval;

}

int getPropertyI64(const char* section, const char* name, int64_t defval = 0)

{

const char* value = getProperty(section, name);

return *value ? strtoll(value, NULL, 10) : defval;

}

std::string& toString(std::string &str)

{

std::vector<std::string> names;

std::string props;

str.clear();

getSectionNames(names);

for (auto name = names.begin(); name != names.end(); ++name)

str.append("[").append(*name).append("]\n").append(toString(props, name->c_str()));

return str;

}

std::string& toString(std::string &str, const char* section)

{

if (section == nullptr)

toString(str);

else

{

std::vector<std::string> names;

str.clear();

getPropertyNames(names, section);

for (auto name = names.begin(); name != names.end(); ++name)

str.append(*name).append("=").append(getProperty(section, name->c_str())).append("\n");

}

return str;

}

std::string& toStringWithHeader(std::string &str, const char* header)

{

str.clear();

if (header && *header)

{

const char* p;

const char* q;

p = q = header;

{

if ((*q == 0) || (*q == 0x0A))

{

str.append("# ").append(p, (size_t)q - (size_t)p).append("\n");

p = q + 1;

}

while (*q++);

}

std::string props;

return str.append(toString(props));

}

virtual bool load(const char* path) = 0;

virtual bool save(const char* path, const char* header = nullptr) = 0;

};

【AB Shutter 3 ペアリング・スクリプト】

#!/bin/bash

CWD=$(cd $(dirname $0) && pwd)

SCAN=${CWD}/ble-scan
PAIRING=${CWD}/ble-pairing

bluetoothctl power off
bluetoothctl power on
bluetoothctl agent NoInputNoOutput
if [ -f ${PAIRING} ]; then
  MAC=$(cat ${PAIRING})
  if [ "${MAC}" != "" ]; then
    bluetoothctl disconnect ${MAC}
    bluetoothctl untrust ${MAC}
    bluetoothctl remove ${MAC}
  fi
  rm ${PAIRING} > /dev/null 2>&1
fi
stdbuf -o0 bluetoothctl scan on 1> ${SCAN} &
while true
do
  sleep 1
  MAC=$(sed -n -r "s/\[.*NEW.*\] Device (.*) AB Shutter/\1/p" ${SCAN} | head -n 1)
  if [ "${MAC}" != "" ]; then
    break;
  fi
done
echo ${MAC} > ${PAIRING}
bluetoothctl pair ${MAC}
bluetoothctl trust ${MAC}
bluetoothctl connect ${MAC}

#!/bin/bash

CWD=$(cd $(dirname $0) && pwd)

SCAN=${CWD}/ble-scan

PAIRING=${CWD}/ble-pairing

bluetoothctl power off

bluetoothctl power on

bluetoothctl agent NoInputNoOutput

if [ -f ${PAIRING} ]; then

MAC=$(cat ${PAIRING})

if [ "${MAC}" != "" ]; then

bluetoothctl disconnect ${MAC}

bluetoothctl untrust ${MAC}

bluetoothctl remove ${MAC}

rm ${PAIRING} > /dev/null 2>&1

stdbuf -o0 bluetoothctl scan on 1> ${SCAN} &

while true

sleep 1

MAC=$(sed -n -r "s/\[.*NEW.*\] Device (.*) AB Shutter/\1/p" ${SCAN} | head -n 1)

if [ "${MAC}" != "" ]; then

break;

done

echo ${MAC} > ${PAIRING}

bluetoothctl pair ${MAC}

bluetoothctl trust ${MAC}

bluetoothctl connect ${MAC}

カテゴリー: Raspberry Pi Zero W

AB Shutter 3 を使って Raspberry PI コンソール・アプリをリモート操作する。