Set struct default initialization values

Modified uniproc_create_process signature to take a command and a list of arguments
Updated uniproc_win64.c to terminate the process before closing the handles
Updated uniproc_win64.c to convert the command and list of arguments into a command-line string

src/uniproc_win64.c

@@ -4,7 +4,7 @@
 #include <fcntl.h>
 #include <io.h>
 
-uniproc_process uniproc_create_process(const char* cmd)
+uniproc_process uniproc_create_process(const char* cmd, const size_t num_args, const char** argv)
 {
 	// Create pipes
 	HANDLE child_in;
@@ -38,9 +38,21 @@ uniproc_process uniproc_create_process(const char* cmd)
 	// Create child process
 	uniproc_process p;
 
-	size_t cmd_len = strlen(cmd);
+	// Create p_cmd by appending all argv's to cmd
+	size_t x = strlen(cmd);
+	size_t cmd_len = x + 1;
+	for (size_t i = 0; i < num_args; ++i)
+		cmd_len += strlen(argv[i]) + 1;
 	char* p_cmd = malloc((cmd_len+1) * sizeof(char));
-	memcpy(p_cmd, cmd, cmd_len * sizeof(char));
+	memcpy(p_cmd, cmd, x * sizeof(char));
+	x += 1; // Account for space after cmd
+	for (size_t i = 0; i < num_args; ++i)
+	{
+		size_t arglen = strlen(argv[i]);
+		memcpy(p_cmd + x, argv[i], arglen);
+		p_cmd[x + arglen] = ' ';
+		x += arglen + 1
+	}
 	p_cmd[cmd_len] = '\0';
 
 	PROCESS_INFORMATION p_info;
@@ -100,11 +112,11 @@ void uniproc_await_processes(uniproc_process* p, int* return_codes, size_t num_p
 
 void uniproc_close_process(uniproc_process* p)
 {
+	TerminateProcess((HANDLE)p->_proc_hdl, 2);
+	CloseHandle((HANDLE)p->_proc_hdl);
 	fclose(p->in);
 	fclose(p->out);
 	fclose(p->err);
-
-	CloseHandle((HANDLE)p->_proc_hdl);
 }
 
 #endif