void pipeRun(char * s, int totalPipes, char ** prePipe, char ** postPipe, int prePipeCount, int postPipeCount){
int fd[2];
pid_t pid1;
pid_t pid2;
parsePipe(totalPipes, s, &prePipe, &prePipeCount, &postPipe, &postPipeCount);
#if TESTER
printf("------->DEBUG: in main prePipeCount = %d<------\n", prePipeCount);
printf("------->DEBUG: in main postPipeCount = %d<------\n", postPipeCount);
printargs(prePipeCount, prePipe);
printargs(postPipeCount, postPipe);
#endif
if( (pid1 = fork()) == 0){
//in child 1
pipe(fd);
if( (pid2 = fork()) == 0){
//child 2
close(fd[0]);
close(1);
close(2);
dup2(fd[1], 1);
close(fd[1]);
//run first command
execvp(prePipe[0],prePipe);
exit(-1);
} //end if
waitpid(pid2, NULL, 0);
close(fd[1]); // stop write end of pipe
close(0);
dup2(fd[0],0);
close(fd[0]);
//run 2nd command
execvp(postPipe[0], postPipe);
exit(-1);
}//end if
waitpid(pid1, NULL,0);
clean(prePipeCount, prePipe);
clean(postPipeCount, postPipe);
}
int parseArgs(int argc, const char **argv) {
int i;
int required_args = 5; // voter name, controller name, rep_type, timeout and priority
controller_name = (char*) (argv[1]);
rep_type = reptypeToEnum((char*)(argv[2]));
rep_count = reptypeToCount(rep_type);
voting_timeout = atoi(argv[3]);
voter_priority = atoi(argv[4]);
if (voting_timeout == 0) {
voting_timeout = PERIOD_USEC;
}
if (argc < required_args) {
puts("Usage: VoterD <controller_name> <rep_type> <timeout> <priority> <fd_in:fd_out:time> <...>");
return -1;
} else {
for (i = 0; (i < argc - required_args && i < PIPE_LIMIT); i++) {
parsePipe(argv[i + required_args], &ext_pipes[pipe_count]); // TODO: WRONG! Maybe. Should ignore non-numbers to deserialize?
pipe_count++;
}
if (pipe_count >= PIPE_LIMIT) {
printf("VoterD: Raise pipe limit.\n");
}
// Need to have a similar setup to associate vote pipe with input?
for (i = 0; i < pipe_count; i++) {
if (ext_pipes[i].timed) {
if (ext_pipes[i].fd_in != 0) {
timer_start_index = i;
} else {
timer_stop_index = i;
}
}
}
}
return 0;
}
