void Rendering() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
glCullFace(GL_BACK);
glPolygonMode(GL_BACK,GL_FILL);
glLoadIdentity();
runPipeline();
testmodel1->draw();
testmodel2->draw();
testmodel3->draw();
testmodel4->draw();
testmodel5->draw();
testmodel6->draw();
testmodel7->draw();
testmodel8->draw();
sphere->draw();
suzanne->draw();
floor_obj->draw();
glfwSwapBuffers(window);
glfwPollEvents();
Mortimer();
}
bool compileMethod(CompilationContext* cc) {
if(Jitrino::flags.skip) {
return false;
}
runPipeline(cc);
bool success = !cc->isCompilationFailed();
return success;
}
void runPipeline(pipeline* pl, int* pipeIn)
{
if(pl == NULL)
{
return;
}
if(pl->next == NULL)
{
execSimple(pl->command, pipeIn, NULL);
return;
}
int pipeOut[2];
pipe(pipeOut);
int pid = execSimple(pl->command, pipeIn, pipeOut);
runPipeline(pl->next, pipeOut);
close(pipeOut[0]);
close(pipeOut[1]);
}
/**
* Runs the command specified by the user. This is the main starting point
* for command execution.
*
* @param commandString The command entered into the prompt
*
* @returns nothing
*/
void runCommand(char* commandString, shellInternal* env)
{
env->piping = 0;
env->background = 0;
// Parse the given command before running it
char* arguments[MAX_ARGUMENTS];
parseCommand(commandString, arguments, env);
char* command = arguments[0];
if(!executeBuiltin(command, arguments, env))
{
if(env->piping)
{
runPipeline(arguments, env);
}
else
{
pid_t pid = fork();
if(pid == 0)
{
execute(arguments);
exit(0);
}
else
{
// Check for running a background process
if(!env->background)
{
waitpid(pid, NULL, 0);
}
else
{
sleep(1);
printf("%d\n", pid);
}
}
}
}
clearData(arguments, MAX_ARGUMENTS);
}
/* prints to stderr if the number is not in the list */
void executeCommandFromHistory(int command_number)
{
history_item* theItem;
int lastNumber;
if(history_list == NULL)
{
initHistory();
}
if(length(history_list) == 0)
{
return;
}
lastNumber = ((history_item*)(history_list->tail->data))->command_number - 1;
if(command_number > lastNumber
|| command_number < (lastNumber - HISTORY_LENGTH)
|| command_number <= 0)
{
fprintf(stderr, "%d: Event not found.\n", command_number);
free(((history_item*)(history_list->tail->data))->command_line);
free(history_list->tail->data);
removeLast(history_list);
}
else
{
char* copy;
theItem = find(history_list, historyNumberEquals,
&command_number)->data;
copy = newstr(theItem->command_line);
printf("%s\n", copy);
free(((history_item*)(history_list->tail->data))->command_line);
((history_item*)(history_list->tail->data))->command_line
= newstr(copy);
runPipeline(crack_pipeline(copy));
}
}
void execTokens(int numTokens, char** tokens)
{
pipeline* pl = malloc(sizeof(pipeline));
pl->next = NULL;
pl->command = NULL;
pipeline* lastPipe = pl;
bool hasFileIn = false;
int fileIn[2]; // pretends to be a pipe to pass to execSimple
// actually just a regular array
bool hasSpecial = false;
int i;
for(i = 0; i < numTokens; hasSpecial = false)
{
simpleCmd* cmd = malloc(sizeof(simpleCmd));
cmd->name = tokens[i];
// allocate enough space for all remaining tokens, plus null terminator
// this will be more than we need in many cases, but it's easy
cmd->args = (char**) malloc((numTokens - i + 1) * sizeof(char*));
int j;
for(j = 0; j < numTokens - i; j++)
{
if (isSpecialToken(tokens[i + j]))
{
hasSpecial = true;
break;
}
cmd->args[j] = tokens[i + j];
}
i += j; // advances i to the next token to read
if (hasSpecial)
{
specials:
switch(tokens[i][0])
{
// deal w/ special token:
// '|' -> advance past to next token
case '|' :
i++;
break;
// '<' -> open file desriptor, set up pipe
case '<' :
{
i++;
if(i >= numTokens)
{
fprintf(stderr, "%s", "quash: syntax error after '<'\n");
return;
}
char* filename = tokens[i];
int fd = open(filename, O_RDONLY);
if(fd < 0)
{
fprintf(stderr, "quash: could not open file: %s\n", filename);
return;
}
hasFileIn = true;
fileIn[0]=fd;
fileIn[1]=fd;
i++;
// should be followed by a special symbol
// rather than a commaand, so jump to the
// appropriate place unless we are at the end
if(i < numTokens)
{
goto specials;
}
break;
}
// '>' -> convert to new builtin (writef)
case '>' :
if (tokens[i][1] == '>')
{
tokens[i] = "appendf";
}
else
{
tokens[i] = "writef";
}
break;
// '&' -> ? (deal w/ later? Should only occur at end) : dealt with in main
}
}
cmd->args[j] = NULL;
pipeline* nextPipe = malloc(sizeof(pipeline));
nextPipe->command = cmd;
nextPipe->next = NULL;
lastPipe->next = nextPipe;
lastPipe = nextPipe;
}
// drop dummy block, pass null for stdin
runPipeline(pl->next, hasFileIn ? fileIn : NULL);
freePipeline(pl);
if(hasFileIn)
{
close(fileIn[0]);
}
}
int main (int argc, const char * argv[])
{
char *line;
pipeline pl;
char *promptstr;
initHistory();
initJobs();
/* check for the right number of arguments */
if(argc >= 2)
{
FILE* theFile = fopen(argv[1], "r");
if(theFile == NULL)
{
if(errno == ENOENT)
{
fprintf(stderr, "%s: Command not found.\n", argv[1]);
}
else
{
perror("fopen");
}
exit(-1);
}
if(dup2(fileno(theFile), STDIN_FILENO) == -1)
{
perror("dup2");
exit(-1);
}
fclose(theFile);
}
/* set prompt */
promptstr = PROMPT;
prompt(promptstr);
while ( TRUE )
{
if ( NULL == (line = readLongString(stdin)))
{
if ( feof(stdin) )
{
/* end of the input file, we're done */
exit(0);
}
}
else if(line[0] == '\0')
{
/* do nothing */
}
else
{
/* line is added to history list, and freed from there */
/* copyLine is sent to pipeline, and freed from there */
/* jobs need their own copy of the command_line */
char* copyLine = newstr(line);
/* We got a line, send it off to the pipeline cracker and
* launch it
*/
pl = crack_pipeline(copyLine);
if(pl != NULL)
{
addCommandToHistory(line);
runPipeline(pl);
}
free_pipeline(pl);
lineno++; /* readLongString trims newlines, so increment it manually */
}
fflush(stdout);
//tcsetpgrp(STDIN_FILENO, getpgid(0));
prompt(promptstr);
}
return 0;
}