From 47513bd32c256c4f35e3a8ced7d9fd7e15903530 Mon Sep 17 00:00:00 2001
From: Benji Dial <benji6283@gmail.com>
Date: Tue, 16 Feb 2021 20:38:53 -0500
Subject: terminal application with ipc, shift+pause state dumper, hello world
 for terminal, meminfo popup program

---
 src/user/include/libterm/command.h  | 68 +++++++++++++++++++++++++++++++++++++
 src/user/include/libterm/readline.h | 10 ++++++
 src/user/include/libterm/terminal.h | 35 +++++++++++++++++++
 3 files changed, 113 insertions(+)
 create mode 100644 src/user/include/libterm/command.h
 create mode 100644 src/user/include/libterm/readline.h
 create mode 100644 src/user/include/libterm/terminal.h

(limited to 'src/user/include/libterm')

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/libterm/readline.h b/src/user/include/libterm/readline.h
new file mode 100644
index 0000000..b1d5b0a
--- /dev/null
+++ b/src/user/include/libterm/readline.h
@@ -0,0 +1,10 @@
+#ifndef LIBTERM_READLINE_H
+#define LIBTERM_READLINE_H
+
+#include <stdint.h>
+
+//returns length of string without null terminator
+//max_length doesn't include null terminator
+uint32_t read_line(char *sz, uint32_t max_length, const char *prompt);
+
+#endif
\ No newline at end of file
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
-- 
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