task API demo page, string stuff

src/lib/functionlib.cpp

@@ -40,6 +40,30 @@ u8 hex_to_u8(String src)
 	return(char_to_u8(src[0])*16 + char_to_u8(src[1]));
 }
 
+String str_to_lower(String s)
+{
+	String result = "";
+	for(auto c : s)
+	{
+		if(c >= 'A' && c <= 'Z')
+			c = tolower(c);
+		result.append(1, c);
+	}
+	return(result);
+}
+
+String str_to_upper(String s)
+{
+	String result = "";
+	for(auto c : s)
+	{
+		if(c >= 'A' && c <= 'Z')
+			c = toupper(c);
+		result.append(1, c);
+	}
+	return(result);
+}
+
 String trim(String raw)
 {
 	u32 len = raw.length();

src/lib/functionlib.h

@@ -2,6 +2,8 @@
 u8 char_to_u8(char input);
 u8 hex_to_u8(String src);
 u64 int_val(String s, u32 base = 10);
+String str_to_lower(String s);
+String str_to_upper(String s);
 
 String trim(String raw);
 StringList split(String str, String delim = "\n");

src/lib/sys.cpp

@@ -423,6 +423,21 @@ void spawn_subprocess(std::function<void()> exec_after_spawn)
 	}
 }
 
+pid_t task_pid(String key)
+{
+	String status_file_name = context->server->config.BIN_DIRECTORY + "/task-" + key;
+	String status_file = file_get_contents(status_file_name);
+	pid_t p = 0;
+	if(status_file != "")
+	{
+		p = int_val(status_file);
+		if(kill(p, 0) == 0) // process is still running
+			return(p);
+		unlink(status_file_name);
+	}
+	return(p);
+}
+
 pid_t task(String key, std::function<void()> exec_after_spawn, u64 timeout)
 {
 	String status_file_name = context->server->config.BIN_DIRECTORY + "/task-" + key;

src/lib/sys.h

@@ -39,4 +39,6 @@ pid_t parent_pid = 0;
 pid_t my_pid = 0;
 
 void on_segfault(int sig);
+
 pid_t task(String key, std::function<void()> exec_after_spawn, u64 timeout = 60*10);
+pid_t task_pid(String key);

src/lib/uri.cpp

@@ -21,6 +21,10 @@ String uri_decode(String q)
 			result.append(1, hex_to_u8(q.substr(i+1, 2)));
 			i += 2;
 		}
+		else if(c == '+')
+		{
+			result.append(1, ' ');
+		}
 		else
 		{
 			result.append(1, c);