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update part 1

This commit is contained in:
Jai Sharma Sharma 2024-08-13 17:50:15 +05:30
parent ebb6e83745
commit dd0de524ac
1 changed files with 20 additions and 9 deletions
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29
lab2/src/part1_searcher.cpp
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@ -24,18 +24,29 @@ int main(int argc, char **argv)
int search_start_position = atoi(argv[3]); int search_start_position = atoi(argv[3]);
int search_end_position = atoi(argv[4]); int search_end_position = atoi(argv[4]);
int find = 0; int find = 0;
int pid = getpid();
ifstream file(file_to_search_in, ios::binary); ifstream file(file_to_search_in, ios::binary);
int len2 = search_end_position - search_start_position;
string buffer;
buffer.resize(len2);
// file.seekg(i);
file.read(&buffer[0], len2);
//TODO //TODO
for(int i = search_start_position; i < search_end_position; ++i) { auto a = buffer.find(pattern_to_search_for);
char *buffer = new char[len]; if(a != string::npos) {
file.seekg(i); cout << "[" << pid << "]" << " found at" << " " << a<< endl;
file.read(buffer, len);
if(!strcmp(buffer, pattern_to_search_for)) {
cout << "[1] found at" << " " << i << endl;
find = 1;
}
} }
if(find == 0) cout << "[1] didn't find\n"; else {
cout << "[" << pid << "]" << " didn't find\n";
}
// for(int i = search_start_position; i < search_end_position; ++i) {
// if(!strcmp(buffer, pattern_to_search_for)) {
// cout << "[" << pid << "]" << " found at" << " " << i << endl;
// find = 1;
// break;
// }
// }
// if(find == 0) cout << "[" << pid << "]" << " didn't find\n";
auto endmain = std::chrono::high_resolution_clock::now(); auto endmain = std::chrono::high_resolution_clock::now();
chrono::duration<double> mainduration = endmain - startmain; chrono::duration<double> mainduration = endmain - startmain;
cout << mainduration.count() << endl; cout << mainduration.count() << endl;