baresip 0.4.10

1 files changed, 185 insertions, 0 deletions

diff --git a/src/ui.c b/src/ui.c
new file mode 100644
index 0000000..2d69fd7
--- /dev/null
+++ b/src/ui.c
@@ -0,0 +1,185 @@
+/**
+ * @file ui.c  User Interface
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+#include <re.h>
+#include <baresip.h>
+#include "core.h"
+
+
+/** User Interface */
+struct ui {
+	struct le le;
+	const char *name;
+	struct ui_st *st;      /* only one instance */
+	ui_output_h *outputh;
+	struct cmd_ctx *ctx;
+};
+
+static struct list uil;  /**< List of UIs (struct ui) */
+static struct config_input input_cfg;
+
+
+static void ui_handler(char key, struct re_printf *pf, void *arg)
+{
+	struct ui *ui = arg;
+
+	(void)cmd_process(ui ? &ui->ctx : NULL, key, pf);
+}
+
+
+static void destructor(void *arg)
+{
+	struct ui *ui = arg;
+
+	list_unlink(&ui->le);
+	mem_deref(ui->st);
+	mem_deref(ui->ctx);
+}
+
+
+static int stdout_handler(const char *p, size_t size, void *arg)
+{
+	(void)arg;
+
+	if (1 != fwrite(p, size, 1, stdout))
+		return ENOMEM;
+
+	return 0;
+}
+
+
+/**
+ * Register a new User-Interface (UI) module
+ *
+ * @param uip    Pointer to allocated UI module
+ * @param name   Name of the UI module
+ * @param alloch UI allocation handler
+ * @param outh   UI output handler
+ *
+ * @return 0 if success, otherwise errorcode
+ */
+int ui_register(struct ui **uip, const char *name,
+		ui_alloc_h *alloch, ui_output_h *outh)
+{
+	struct ui *ui;
+	int err = 0;
+
+	if (!uip)
+		return EINVAL;
+
+	ui = mem_zalloc(sizeof(*ui), destructor);
+	if (!ui)
+		return ENOMEM;
+
+	list_append(&uil, &ui->le, ui);
+
+	ui->name    = name;
+	ui->outputh = outh;
+
+	if (alloch) {
+		struct ui_prm prm;
+
+		prm.device = input_cfg.device;
+		prm.port   = input_cfg.port;
+
+		err = alloch(&ui->st, &prm, ui_handler, ui);
+		if (err) {
+			warning("ui: register: module '%s' failed (%m)\n",
+				ui->name, err);
+		}
+	}
+
+	if (err)
+		mem_deref(ui);
+	else
+		*uip = ui;
+
+	return err;
+}
+
+
+/**
+ * Send input to the UI subsystem
+ *
+ * @param key Input character
+ */
+void ui_input(char key)
+{
+	struct re_printf pf;
+
+	pf.vph = stdout_handler;
+	pf.arg = NULL;
+
+	ui_handler(key, &pf, list_ledata(uil.head));
+}
+
+
+/**
+ * Send an input string to the UI subsystem
+ *
+ * @param str Input string
+ */
+void ui_input_str(const char *str)
+{
+	struct re_printf pf;
+	struct pl pl;
+
+	if (!str)
+		return;
+
+	pf.vph = stdout_handler;
+	pf.arg = NULL;
+
+	pl_set_str(&pl, str);
+
+	(void)ui_input_pl(&pf, &pl);
+}
+
+
+int ui_input_pl(struct re_printf *pf, const struct pl *pl)
+{
+	struct cmd_ctx *ctx = NULL;
+	size_t i;
+	int err = 0;
+
+	if (!pf || !pl)
+		return EINVAL;
+
+	for (i=0; i<pl->l; i++) {
+		err |= cmd_process(&ctx, pl->p[i], pf);
+	}
+
+	if (pl->l > 1 && ctx)
+		err |= cmd_process(&ctx, '\n', pf);
+
+	return err;
+}
+
+
+/**
+ * Send output to all modules registered in the UI subsystem
+ *
+ * @param str Output string
+ */
+void ui_output(const char *str)
+{
+	struct le *le;
+
+	for (le = uil.head; le; le = le->next) {
+		const struct ui *ui = le->data;
+
+		if (ui->outputh)
+			ui->outputh(ui->st, str);
+	}
+}
+
+
+void ui_init(const struct config_input *cfg)
+{
+	if (!cfg)
+		return;
+
+	input_cfg = *cfg;
+}