From 300afb3265af4d9f011b11c50198c9049fa3c6de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Franti=C5=A1ek=20Boh=C3=A1=C4=8Dek?=
 <fandabohacek@gmail.com>
Date: Tue, 22 Jun 2021 22:14:48 +0200
Subject: [PATCH] feat: add file execute process

---
 file-browser/include/file_execute.h | 17 ++++++++++
 file-browser/src/file_execute.c     | 50 +++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+)
 create mode 100644 file-browser/include/file_execute.h
 create mode 100644 file-browser/src/file_execute.c

diff --git a/file-browser/include/file_execute.h b/file-browser/include/file_execute.h
new file mode 100644
index 0000000000000000000000000000000000000000..eee51c3de9953ab082088236f451bbd3f51f3874
--- /dev/null
+++ b/file-browser/include/file_execute.h
@@ -0,0 +1,17 @@
+#include <unistd.h>
+#include <stdbool.h>
+
+typedef struct {
+  pid_t pid;
+  int output_signal;
+  bool exited;
+} executing_file_t;
+
+typedef struct {
+  bool error;
+  executing_file_t file;
+} executing_file_error_t;
+
+executing_file_error_t executing_file_execute(char *path, char *args);
+int executing_file_wait(executing_file_t *file);
+bool executing_file_has_ended(executing_file_t *file);
diff --git a/file-browser/src/file_execute.c b/file-browser/src/file_execute.c
new file mode 100644
index 0000000000000000000000000000000000000000..cb4dbeaa5fa4d7dc6c8a9d3699fd302c56275476
--- /dev/null
+++ b/file-browser/src/file_execute.c
@@ -0,0 +1,50 @@
+#include "file_execute.h"
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+executing_file_error_t executing_file_execute(char *path, char *args) {
+  executing_file_error_t ret;
+  pid_t pid = fork();
+
+  if (pid == -1) {
+    ret.error = true;
+    return ret;
+  }
+
+  if (pid == 0) {
+    execl(path, args, (char*)NULL);
+    exit(errno);
+  }
+
+  ret.error = false;
+  ret.file.pid = pid;
+  ret.file.output_signal = 0;
+  ret.file.exited = false;
+  return ret;
+}
+
+int executing_file_wait(executing_file_t *file) {
+  pid_t data = waitpid(file->pid, &file->output_signal, 0);
+  if (data == -1) {
+    return -1;
+  }
+
+  file->exited = true;
+  return file->output_signal;
+}
+
+bool executing_file_has_ended(executing_file_t *file) {
+  if (file->exited) {
+    return true;
+  }
+
+  if (waitpid(file->pid, &file->output_signal, WNOHANG) == 0) {
+    file->exited = true;
+    return true;
+  }
+
+  return false;
+}