summaryrefslogtreecommitdiff
path: root/src/utils.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/utils.c')
-rw-r--r--src/utils.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c
new file mode 100644
index 0000000..ddd044f
--- /dev/null
+++ b/src/utils.c
@@ -0,0 +1,80 @@
+/* Camicro - Microscope camera viewer.
+ *
+ * Copyright (C) 2019 Nicolas Schodet
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Contact :
+ * Web: http://ni.fr.eu.org/
+ * Email: <nico at ni.fr.eu.org>
+ */
+#define _GNU_SOURCE
+#include <errno.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <time.h>
+
+#include "utils.h"
+
+void
+utils_fatal(const char *fmt, ...)
+{
+ va_list ap;
+ fprintf(stderr, "%s: ", program_invocation_short_name);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+ exit(EXIT_FAILURE);
+}
+
+void
+utils_info(const char *fmt, ...)
+{
+ va_list ap;
+ fprintf(stderr, "%s: ", program_invocation_short_name);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+}
+
+void
+utils_delay_us(int us)
+{
+ struct timespec delay, remaining;
+ delay.tv_sec = us / 1000000;
+ delay.tv_nsec = us % 1000000 * 1000;
+ while (nanosleep(&delay, &remaining) == -1) {
+ if (errno == EINTR)
+ delay = remaining;
+ else
+ g_error("can not sleep: %m");
+ }
+}
+
+void
+utils_dialog_error(GtkWindow *parent, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ char *msg = g_strdup_vprintf(fmt, ap);
+ va_end(ap);
+ GtkWidget *dialog = gtk_message_dialog_new(parent, GTK_DIALOG_MODAL,
+ GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", msg);
+ gtk_dialog_run(GTK_DIALOG(dialog));
+ gtk_widget_destroy(dialog);
+ g_free(msg);
+}