// function for text editor (mode 2) calculation
int cal_texteditor(void){
printf("DEBUG: text editor function entered\n");
typing_count(0); // initialize counter on FND
while(*mode_shm == '2'){
if(input_shm[10] != '*'){
// change mode to 3, if btn2 & btn3 are pressed
if(input_shm[1] == 1 && input_shm[2] == 1){
*mode_shm = '3';
init_shared();
}
// clear lcd screen, if btn4 & btn5 are pressed
else if(input_shm[3] == 1 && input_shm[4] == 1){
init_shared();
}
// change typing mode, if btn5 & btn6 are pressed
else if(input_shm[4] == 1 && input_shm[5] == 1){
typing_mode();
typing_count(2);
}
// terminate program, if btn8 & btn9 are pressed
else if(input_shm[7] == 1 && input_shm[8] == 1)
*mode_shm = '0';
// calculate input to print on lcd
else{
if(output_shm[0] == 'A'){
// calculation for alphabet mode
typing_alphabet();
}
else{
// calculation for numeric mode
typing_numeric();
}
typing_count(1);
}
// flag down to wait new input
input_shm[10] = '*';
}
}
printf("DEBUG: text editor function ended\n");
return 0;
}
// create and initialize shared memory to use
static int shared_memory(void){
// naming shared memory segments
mode_key = 1111;
input_key = 2222;
output_key = 3333;
// create the segments
if((mode_shmid = shmget(mode_key, 1, IPC_CREAT|0600)) < 0)
die("mode shmget");
if((input_shmid = shmget(input_key, 32, IPC_CREAT|0660)) < 0)
die("input shmget");
if((output_shmid = shmget(output_key, 64, IPC_CREAT|0666)) < 0)
die("output shmget");
// attach the segments to memory space
if((mode_shm = shmat(mode_shmid, NULL, 0)) == (char *)-1)
die("mode shmat");
if((input_shm = shmat(input_shmid, NULL, 0)) == (char *)-1)
die("input shmat");
if((output_shm = shmat(output_shmid, NULL, 0)) == (char *)-1)
die("output shmat");
// initialize data to default
*mode_shm = '1';
init_shared();
return 0;
}
int main(int argc, char* argv[], char* envp[]) {
int status, child;
strcpy(proc_name, "parent");
init_shared(argv);
fprintf(stderr, "Map address is: %p\n", g_shared);
if (child = fork()) {
parentWork();
waitpid(child, &status, 0);
cleanup_shared();
fprintf(stderr, "Parent finished!\n");
} else { /* child executes shmem2 */
execvpe("./mult2Vecs", argv + 2, envp);
}
}
int main(int argc, char **argv)
{
int fd;
init_semaphore();
semSet();
init_shared();
if( (fd = open("debug.txt", O_CREAT | O_TRUNC, 0666)) < 0)
{
fprintf(stderr, "Cannot create a file\n");
exit(1);
}
close(fd);
return 0;
}
void allocOutputMatrixAndSharedMem(int Arows, int Bcols)
{
int row, col;
for (row = 0; row < Arows; row++)
for (col = 0; col < Bcols; col++)
{
cmdArgc[argNumc] = (char *) calloc(1, sizeof(int));
argNumc++;
}
printf("size of output matrix cmdArgc = %d\n", argNumc * sizeof(cmdArgc[0]));
//allocate shared memory
strcpy(proc_name, "parent");
init_shared();
fprintf(stderr, "Map address is: %p\n", g_shared);
numChildren = Arows * Bcols;
printf("number of children processes needed to get output matrix, each multiplying one row of matrix A by one column of matrix B = %d\n", numChildren);
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
pthread_t tid_producer;
pthread_t tid_consumer;
/* 初始化 shared 类型 */
init_shared(&buf);
/* 创建生产者消费者线程 */
pthread_create(&tid_producer, NULL, producer, (void *)&buf);
pthread_create(&tid_consumer, NULL, consumer, (void *)&buf);
/* 等待线程结束 */
pthread_join(tid_producer, NULL);
pthread_join(tid_consumer, NULL);
return a.exec();
}
// get all event keys and pass it to main process
static int eventkey_process(void){
struct input_event ev[BUFF_SIZE];
int fd, rd, value, size = sizeof(struct input_event);
// open device driver
if((fd = open("/dev/input/event1", O_RDONLY)) < 0)
die("/dev/input/event1 open error");
printf("DEBUG: event key process entered\n");
while(*mode_shm != '0'){
// get event key
if((rd = read(fd, ev, size*BUFF_SIZE)) < size)
die("read()");
if(ev[0].value == KEY_PRESS){
// stop watch button input
if(*mode_shm == '1'){
if(ev[0].code == SW2)
*input_shm = '2';
if(ev[0].code == SW3)
*input_shm = '3';
if(ev[0].code == SW4)
*input_shm = '4';
}
// custom mode button input
if(*mode_shm == '3'){
if(ev[0].code == SW1)
*input_shm = '1';
if(ev[0].code == SW2)
*input_shm = '2';
if(ev[0].code == SW3)
*input_shm = '3';
if(ev[0].code == SW4)
*input_shm = '4';
}
// mode change upward
if(ev[0].code == SW_UP){
if(*mode_shm == '1')
*mode_shm = '2';
else if(*mode_shm == '2')
*mode_shm = '3';
else
*mode_shm = '1';
init_shared();
}
// mode change downward
if(ev[0].code == SW_DOWN){
if(*mode_shm == '1')
*mode_shm = '3';
else if(*mode_shm == '2')
*mode_shm = '1';
else
*mode_shm = '2';
init_shared();
}
// terminate program
if(ev[0].code == SW_QUIT)
*mode_shm = '0';
}
}
// close device driver
close(fd);
printf("DEBUG: event key process ended\n");
return 0;
}
int main (int ac, char **av){
char l[1024];
/* Creates threads as detached in order to save
* some resources when quiting
*/
assert(!pthread_attr_init (&thread_attr));
assert(!pthread_attr_setdetachstate (&thread_attr, PTHREAD_CREATE_DETACHED));
L = lua_open(); /* opens Lua */
luaL_openlibs(L); /* and it's libraries */
atexit(clean_lua);
luaL_openlib(L,"Selene", seleneLib, 0); /* Declare Selene's functions */
init_shared(L);
init_SelTimer(L);
init_SelCollection(L);
init_SelTimedCollection(L);
init_SelTimedWindowCollection(L);
init_SelFIFO(L);
init_log(L);
init_SelEvent(L);
#ifdef USE_MQTT
init_mqtt(L);
#endif
lua_pushnumber(L, VERSION); /* Expose version to lua side */
lua_setglobal(L, "SELENE_VERSION");
if(ac > 1){
if(ac > 2){ /* Handle script's arguments */
luaL_checkstack(L, ac-1, "too many arguments to script"); /* Place for args (ac-2) + the table itself */
lua_createtable(L, ac-2, 0);
for(int i=2; i<ac; i++){
lua_pushstring(L, av[i]);
lua_rawseti(L, -2, i-1);
}
lua_setglobal(L, "arg");
}
char *t = strdup( av[1] ); /* Launching script */
assert(t);
lua_pushstring(L, dirname(t) );
lua_setglobal(L, "SELENE_SCRIPT_DIR");
strcpy(t, av[1]);
lua_pushstring(L, basename(t) );
lua_setglobal(L, "SELENE_SCRIPT_NAME");
int err = luaL_loadfile(L, av[1]) || lua_pcall(L, 0, 0, 0);
if(err){
fprintf(stderr, "%s", lua_tostring(L, -1));
lua_pop(L, 1); /* pop error message from the stack */
exit(EXIT_FAILURE);
}
} else while(fgets(l, sizeof(l), stdin) != NULL){
int err = luaL_loadbuffer(L, l, strlen(l), "line") || lua_pcall(L, 0, 0, 0);
if(err){
fprintf(stderr, "%s\n", lua_tostring(L, -1));
lua_pop(L, 1); /* pop error message from the stack */
}
}
exit(EXIT_SUCCESS);
}
