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slave.c
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slave.c
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// This is a personal academic project. Dear PVS-Studio, please check it.
// PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
#include "slave.h"
void solveTask(char const* task);
void waitTasks();
int main(int argc, char const *argv[]){
if( setvbuf(stdout, NULL, _IONBF, 0) ){
handle_error("Setvbuf failed");
}
for (int i = 1; i < argc; i++){
solveTask(argv[i]);
}
waitTasks();
return 0;
}
void waitTasks(){
char newTask[MAX_BUFF + 1] = {0};
int count = 0;
while ( ( count = read(STDIN, newTask, MAX_BUFF) ) != READ_END){
if(count == ERROR){
handle_error("Read failed");
}
newTask[count] = 0;
solveTask(newTask);
}
}
void solveTask(char const* task){
char command_line[MAX_BUFF] = {0};
sprintf(command_line, "%s %s | grep -o -e \"Number of.*[0-9]\\+\" -e \"CPU time.*\" -e \".*SATISFIABLE\"", SAT_SOLVER, task);
FILE* outputStream;
if( (outputStream = popen(command_line, "r") ) == NULL){
handle_error("Popen failed");
}
char line[MAX_BUFF] = {0};
fread(line, sizeof(char), MAX_BUFF, outputStream);
if( ferror(outputStream) ) {
fprintf(stderr, "%s\n", "Fread failed");
exit(EXIT_FAILURE);
}
printf("PID:%d\nFile:%s\n%s\t", getpid(), task, line);
if(pclose(outputStream) == -1){
handle_error("Pclose failed");
}
}