Use our own function to parse int

native/jni/utils/include/utils.h

@@ -83,6 +83,7 @@ int strend(const char *s1, const char *s2);
 char *rtrim(char *str);
 void init_argv0(int argc, char **argv);
 void set_nice_name(const char *name);
+int parse_int(const char *s);
 
 #define getline __getline
 #define getdelim __getdelim
@@ -203,6 +204,11 @@ void mmap_rw(const char *filename, B &buf, L &sz) {
 
 // misc.cpp
 
+template <class S>
+int parse_int(S __s) {
+	return parse_int(__s.data());
+}
+
 int new_daemon_thread(void *(*start_routine) (void *), void *arg = nullptr,
 		const pthread_attr_t *attr = nullptr);
 

native/jni/utils/misc.cpp

@@ -230,3 +230,18 @@ char *rtrim(char *str) {
 	str[len] = '\0';
 	return str;
 }
+
+/*
+ * Bionic's atoi runs through strtol().
+ * Use our own implementation for faster conversion.
+ */
+int parse_int(const char *s) {
+	int val = 0;
+	char c;
+	while ((c = *(s++))) {
+		if (c > '9' || c < '0')
+			return -1;
+		val = val * 10 + c - '0';
+	}
+	return val;
+}