terminal application with ipc, shift+pause state dumper, hello world for terminal, meminfo popup program

8 files changed, 118 insertions, 72 deletions

diff --git a/src/user/include/knob/ipc.h b/src/user/include/knob/ipc.h
index 3eab562..335959d 100644
--- a/src/user/include/knob/ipc.h
+++ b/src/user/include/knob/ipc.h
@@ -5,7 +5,7 @@
 
 //blocking, returns early if other process is dead.
 //return value is number of bytes written.
-uint32_t try_send_ipc(_task_handle_t to, void *buffer, uint32_t size);
+uint32_t try_send_ipc(_task_handle_t to, const void *buffer, uint32_t size);
 
 //blocking, returns early if other process is dead.
 //return value is number of bytes read.
diff --git a/src/user/include/libterm/command.h b/src/user/include/libterm/command.h
new file mode 100644
index 0000000..7587306
--- /dev/null
+++ b/src/user/include/libterm/command.h
@@ -0,0 +1,68 @@
+#ifndef LIBTERM_COMMAND_H
+#define LIBTERM_COMMAND_H
+
+#include <libterm/terminal.h>
+
+#include <knob/ipc.h>
+
+#include <keypack.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+
+//set to stdio task by default
+extern _task_handle_t term_task;
+
+struct terminal_command {
+  enum {
+    SET_DIMENSIONS,
+    GET_DIMENSIONS,
+    PAINT,
+    CLEAR,
+    SET_COLOR,
+    SET_CURSOR,
+    CURSOR_LEFT,
+    CURSOR_RIGHT,
+    CURSOR_UP,
+    CURSOR_DOWN,
+    ADD_CHAR,
+    ADD_SN,
+    ADD_SN_NO_WORDWRAP,
+    GET_KEY
+  } kind;
+
+  union {
+    struct {
+      uint32_t y;
+      uint32_t x;
+    } as_coords;
+    struct {
+      uint8_t fg;
+      uint8_t bg;
+    } as_color;
+    char as_char;
+    uint32_t as_uint;
+  };
+} __attribute__ ((__packed__));
+
+union terminal_response {
+  struct {
+    uint32_t y;
+    uint32_t x;
+  } as_coords;
+  struct key_packet as_key;
+} __attribute__ ((__packed__));
+
+//returns false if terminal has died
+static inline bool try_send_command(struct terminal_command *cmd) {
+  return try_send_ipc(term_task, cmd, sizeof(struct terminal_command))
+                                   == sizeof(struct terminal_command);
+}
+
+//returns false if terminal has died
+static inline bool try_get_response(union terminal_response *rs) {
+  return try_read_ipc(term_task, rs, sizeof(union terminal_response))
+                                  == sizeof(union terminal_response);
+}
+
+#endif
\ No newline at end of file
diff --git a/src/user/include/terminal/readline.h b/src/user/include/libterm/readline.h
index 9046610..b1d5b0a 100644
--- a/src/user/include/terminal/readline.h
+++ b/src/user/include/libterm/readline.h
@@ -1,5 +1,5 @@
-#ifndef TERMINAL_READLINE_H
-#define TERMINAL_READLINE_H
+#ifndef LIBTERM_READLINE_H
+#define LIBTERM_READLINE_H
 
 #include <stdint.h>
 
diff --git a/src/user/include/libterm/terminal.h b/src/user/include/libterm/terminal.h
new file mode 100644
index 0000000..19bd517
--- /dev/null
+++ b/src/user/include/libterm/terminal.h
@@ -0,0 +1,35 @@
+#ifndef LIBTERM_TERMINAL_H
+#define LIBTERM_TERMINAL_H
+
+#include <pland/syscall.h>
+
+#include <stdarg.h>
+#include <stdint.h>
+
+void term_set_dimensions(uint32_t width, uint32_t height);
+void term_get_dimensions(uint32_t *width, uint32_t *height);
+
+void term_paint();
+void term_clear();
+
+void term_set_color(uint8_t fg, uint8_t bg);
+void term_set_cursor(uint32_t new_y, uint32_t new_x);
+
+void term_cursor_left();
+void term_cursor_right();
+void term_cursor_up();
+void term_cursor_down();
+
+void term_add_char(char ch);
+void term_add_sn_no_ww(const char *s, uint32_t n);
+void term_add_sz_no_ww(const char *sz);
+void term_add_sz(const char *sz);
+
+void term_addf_no_ww_v(const char *fmt, va_list args);
+void term_addf_no_ww(const char *fmt, ...);
+void term_addf_v(const char *fmt, va_list args);
+void term_addf(const char *fmt, ...);
+
+struct key_packet term_get_key_blocking();
+
+#endif
\ No newline at end of file
diff --git a/src/user/include/pland/pcrt.h b/src/user/include/pland/pcrt.h
index 42158cd..795738e 100644
--- a/src/user/include/pland/pcrt.h
+++ b/src/user/include/pland/pcrt.h
@@ -17,5 +17,6 @@ void __pcrt_quit() __attribute__ ((noreturn));
 
 extern _task_handle_t calling_task;
 extern _task_handle_t stdio_task;
+extern _task_handle_t this_task;
 
 #endif
diff --git a/src/user/include/pland/syscall.h b/src/user/include/pland/syscall.h
index 6d327d5..6870865 100644
--- a/src/user/include/pland/syscall.h
+++ b/src/user/include/pland/syscall.h
@@ -39,8 +39,8 @@ enum _scn {
   _SCN_PAINT_WINDOW,
   _SCN_GET_WIN_ACTION,
   _SCN_WAIT_FOR_ACTION,
-  _SCN_WAIT_IPC_SEND,
-  _SCN_WAIT_FOR_ANY_IPC,
+  _SCN_WAIT_IPC_SENT,
+  _SCN_WAIT_ANY_IPC_SENT,
   _SCN_FIND_UNREAD_IPC,
   _SCN_WAIT_IPC_READ,
   _SCN_IS_TASK_RUNNING
@@ -137,7 +137,7 @@ static inline uint32_t _ipc_send(_task_handle_t handle, uint32_t count, const vo
 }
 
 static inline uint32_t _ipc_read(_task_handle_t handle, uint32_t count, void *buffer) {
-  return _sc3(_SCN_IPC_SEND, handle, count, (uint32_t)buffer);
+  return _sc3(_SCN_IPC_READ, handle, count, (uint32_t)buffer);
 }
 
 static inline void *_allocate_ram(uint32_t pages) {
@@ -184,11 +184,11 @@ static inline void _delete_window(_window_handle_t window) {
   _sc1(_SCN_DELETE_WINDOW, (uint32_t)window);
 }
 
-static inline void _resize_window(_window_handle_t window, uint16_t width, uint16_t height) {
-  _sc3(_SCN_RESIZE_WINDOW, (uint32_t)window, width, height);
+static inline void _resize_window(_window_handle_t window, uint16_t width, uint16_t height, const void *pixel_buffer) {
+  _sc4(_SCN_RESIZE_WINDOW, (uint32_t)window, width, height, (uint32_t)pixel_buffer);
 }
 
-static inline void _reassign_pixbuf(_window_handle_t window, void *pixel_buffer) {
+static inline void _reassign_pixbuf(_window_handle_t window, const void *pixel_buffer) {
   _sc2(_SCN_REASSIGN_PIXBUF, (uint32_t)window, (uint32_t)pixel_buffer);
 }
 
@@ -204,16 +204,16 @@ static inline void _wait_for_action() {
   _sc0(_SCN_WAIT_FOR_ACTION);
 }
 
-static inline void _wait_ipc_send(_task_handle_t sending_task) {
-  _sc1(_SCN_WAIT_IPC_SEND, sending_task);
+static inline void _wait_ipc_sent(_task_handle_t sending_task) {
+  _sc1(_SCN_WAIT_IPC_SENT, sending_task);
 }
 
 static inline void _system_log(const char *sz) {
   _sc1(_SCN_SYSTEM_LOG, (uint32_t)sz);
 }
 
-static inline void _wait_for_any_ipc() {
-  _sc0(_SCN_WAIT_FOR_ANY_IPC);
+static inline void _wait_for_any_ipc_sent() {
+  _sc0(_SCN_WAIT_ANY_IPC_SENT);
 }
 
 static inline _task_handle_t _find_unread_ipc() {
diff --git a/src/user/include/popups/popup.h b/src/user/include/popups/popup.h
index 1a3c531..9a39997 100644
--- a/src/user/include/popups/popup.h
+++ b/src/user/include/popups/popup.h
@@ -11,8 +11,7 @@ struct popup {
   struct key_packet quit_as;
 
   //terminated by one with .key_id == 0
-  struct key_packet *quit_binds;
-  bool free_quit_binds;
+  const struct key_packet *quit_binds;
 };
 
 void handle_actions(struct popup *p);
diff --git a/src/user/include/terminal/terminal.h b/src/user/include/terminal/terminal.h
deleted file mode 100644
index 1782173..0000000
--- a/src/user/include/terminal/terminal.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#ifndef TERMINAL_TERMINAL_H
-#define TERMINAL_TERMINAL_H
-
-#include <libfont/fonts.h>
-
-#include <pland/syscall.h>
-
-#include <stdarg.h>
-#include <stdint.h>
-
-struct terminal {
-  _window_handle_t window;
-  uint8_t *pixbuf;
-  uint32_t window_width;
-  uint32_t window_height;
-
-  struct font_info *font;
-
-  uint32_t cols;
-  uint32_t rows;
-  char *charbuf;
-
-  uint32_t cursor_y;
-  uint32_t cursor_x;
-
-  uint8_t fg;
-  uint8_t bg;
-};
-
-struct terminal *make_term(struct font_info *font, uint32_t cols, uint32_t rows);
-void del_term(struct terminal *term);
-
-extern struct terminal *active_term;
-
-void paint_term();
-
-void set_color(uint8_t fg, uint8_t bg);
-void clear_term();
-
-void move_cursor(uint32_t new_y, uint32_t new_x);
-
-void cursor_left();
-void cursor_right();
-void cursor_up();
-void cursor_down();
-
-void term_newline();
-void term_add_char(char ch);
-void term_add_sz_no_ww(const char *sz);
-void term_add_sz(const char *sz);
-
-void term_addf_no_ww_v(const char *fmt, va_list args);
-void term_addf_no_ww(const char *fmt, ...);
-void term_addf_v(const char *fmt, va_list args);
-void term_addf(const char *fmt, ...);
-
-#endif
\ No newline at end of file