83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/*
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This is a personal academic project. Dear PVS-Studio, please check it.
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PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "error.h"
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#define MAX_SIZE 300
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#define COMMAND_MAX_SIZE 400
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/*
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Recibirá por STDIN los minisat files correspondientes
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(los tomo separados con un \n aunque esto podría modificarse luego)
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y, a su vez, entregará por STDOUT el resultado de minisat.
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Ejemplo de uso: echo "prueba.txt" | ./slave.o
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*/
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//void printSystemError(char *);
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void runCommand(char *, char *);
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void printOutput(char *, char *);
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int main(int argc, char *argv[]) {
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setvbuf(stdout, NULL, _IONBF, 0);
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char output[MAX_SIZE];
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char input[MAX_SIZE];
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/*
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// Falta manejo de errores de fgets!
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while (fgets(input, MAX_SIZE, stdin)) {
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input[strcspn(input, "\n")] = '\0';
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runCommand(input, output);
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printOutput(output, input);
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}
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*/
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int readChars;
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while ((readChars = read(STDIN_FILENO, input, MAX_SIZE) != 0)) {
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if (readChars < 0)
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printSystemError("slave.c -- read()");
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char * inputLine = strtok(input, "\n");
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while (inputLine != NULL) {
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runCommand(inputLine, output);
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printOutput(output, inputLine);
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inputLine = strtok(NULL, "\n");
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}
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}
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}
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void runCommand(char * inputLine, char * output) {
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char command[COMMAND_MAX_SIZE];
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//sprintf(command, "minisat %s | grep -o -e \"Number of .*[0-9]\\+\" -e \"CPU time.*\" -e \".*SATISFIABLE\" | awk '{if (NR == 1) {print $4} ; if (NR == 2) {print $4} ; if (NR == 3) {print $4 $5} ; if (NR == 4) {print $1}}'", inputLine);
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sprintf(command, "minisat %s | grep -o -e \"Number of .*[0-9]\\+\" -e \"CPU time.*\" -e \".*SATISFIABLE\" | awk '{if (NR == 1) {printf \"Cantidad de variables: \" $4 \" - \"} ; if (NR == 2) {printf \"Cantidad de cláusulas: \" $4 \" - \"} ; if (NR == 3) {printf \"Tiempo de procesamiento: \" $4 $5 \" - \"} ; if (NR == 4) {printf \"Resultado: \" $1}}'", inputLine);
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// Pequeña ayuda para popen: https://stackoverflow.com/questions/646241/c-run-a-system-command-and-get-output
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FILE *fp;
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if (!(fp = popen(command, "r")))
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printSystemError("slave.c -- popen()");
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// Ver manejo de errores de fread!
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size_t outputLength = fread(output, sizeof(char), MAX_SIZE, fp);
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output[outputLength] = '\0';
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if (pclose(fp) < 0)
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printSystemError("slave.c -- pclose()");
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}
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void printOutput(char * output, char * fileName) {
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printf("Nombre del archivo: %s - %s - Id del esclavo: %d\n", fileName, output, getpid());
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}
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/*
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void printSystemError(char * string) {
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perror(string);
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exit(EXIT_FAILURE);
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}
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*/ |