key_search: split key_search() function into key_search() and key_search_n()

src/key_search.cpp

@@ -25,22 +25,33 @@ static void key_result(const std::string& word, const struct ec_keypair* pair) {
 	wif_print_key(pair);
 }
 
-void key_search(strlist_t word_list, size_t n) {
+bool key_search(struct ec_keypair* key, std::string& word, const strlist_t& word_list) {
+
+	std::string pubstr;
+
+	ec_generate_key(key);
+	pubstr = wif_pub_encode(key->pub);
+	strtolower(pubstr);
+
+	for(auto const& w: word_list) {
+		if (pubstr.find(w) != std::string::npos) {
+			word = w;
+			return true;
+		}
+	}
+	return false;
+}
+
+void key_search_n(const strlist_t& word_list, size_t n) {
 
 	size_t count = 0;
 	struct ec_keypair pair;
 
 	while (count < n) {
-		std::string pubstr;
-		ec_generate_key(&pair);
-		pubstr = wif_pub_encode(pair.pub);
-		strtolower(pubstr);
-
-		for(auto const& word: word_list) {
-			if (pubstr.find(word) != std::string::npos) {
-				key_result(word, &pair);
-				count++;
-			}
+		std::string word;
+		if (key_search(&pair, word, word_list)) {
+			key_result(word, &pair);
+			count++;
 		}
 	}
 }

src/key_search.h

@@ -25,7 +25,10 @@
 #define KEY_SEARCH_H
 
 #include "string.h"
+#include "ec.h"
 
-void key_search(strlist_t word_list, size_t n);
+bool key_search(struct ec_keypair* out, std::string& word, const strlist_t& word_list);
+
+void key_search_n(const strlist_t& word_list, size_t n);
 
 #endif /* KEY_SEARCH_H */

src/main.cpp

@@ -65,11 +65,11 @@ static void thread_search(const strlist_t& words, int n) {
 
 	// Launch threads.
 	for(int i = 0; i < t.size(); i++) {
-		t[i] = std::thread(key_search, words, d);
+		t[i] = std::thread(key_search_n, words, d);
 	}
 
 	// Use main thread for 1 search
-	key_search(words, d + m);
+	key_search_n(words, d + m);
 
 	// Wait for all threads to compelete.
 	for(int i = 0; i < t.size(); i++) {
@@ -77,7 +77,7 @@ static void thread_search(const strlist_t& words, int n) {
 	}
 }
 #else
-#define search_func key_search
+#define search_func key_search_n
 #endif
 
 void cmd_search(int argc, char **argv) {