From f02333a560f8f61ee4e868118167f996cbd79b0d Mon Sep 17 00:00:00 2001
From: armatusmiles <akurotych@gmail.com>
Date: Thu, 19 Jul 2018 14:57:01 +0300
Subject: [PATCH] Add dap_process_manager
---
core/dap_process_manager.c | 52 ++++++++++++++++++++++++++++++++++++++
core/dap_process_manager.h | 22 ++++++++++++++++
2 files changed, 74 insertions(+)
create mode 100755 core/dap_process_manager.c
create mode 100755 core/dap_process_manager.h
diff --git a/core/dap_process_manager.c b/core/dap_process_manager.c
new file mode 100755
index 0000000..a291009
--- /dev/null
+++ b/core/dap_process_manager.c
@@ -0,0 +1,52 @@
+#ifdef __linux__
+#include <stdio.h>
+#include <sys/types.h>
+#include <signal.h>
+
+#include "dap_process_manager.h"
+#include "dap_common.h"
+
+#undef LOG_TAG
+#define LOG_TAG "dap_process_manager"
+
+bool is_process_running(pid_t pid) {
+ return kill(pid, 0) == 0;
+}
+
+bool save_process_pid_in_file(const char* file_path) {
+ FILE * fpid = fopen(file_path, "w");
+ if (fpid == NULL) {
+ log_it(L_ERROR, "Cant create/open file by path %s",file_path);
+ return false;
+ }
+ fprintf(fpid, "%d", getpid());
+ fclose(fpid);
+ return true;
+}
+
+pid_t get_pid_from_file(const char* file_path) {
+ FILE * fpid = fopen(file_path, "r");
+ if (fpid == NULL) {
+ log_it(L_ERROR, "Cant create/open file by path %s",file_path);
+ return false;
+ }
+
+ pid_t f_pid = 0;
+ fscanf(fpid, "%d", &f_pid);
+ fclose(fpid);
+
+ return f_pid;
+}
+
+bool daemonize_process() {
+ return daemon(1,1) == 0;
+}
+
+bool kill_process(pid_t pid) {
+ if (!is_process_running(pid)) {
+ return false;
+ }
+ return kill(pid, SIGKILL) == 0;
+}
+
+#endif
diff --git a/core/dap_process_manager.h b/core/dap_process_manager.h
new file mode 100755
index 0000000..2fb47d8
--- /dev/null
+++ b/core/dap_process_manager.h
@@ -0,0 +1,22 @@
+#ifdef __linux__
+
+#include <stdbool.h>
+#include <unistd.h>
+
+/* Saves process pid into file by file_path.
+ * If file exists he will be overwritten */
+extern bool save_process_pid_in_file(const char* file_path);
+
+/* File must consist only PID. Return 0 if file is clear. */
+extern pid_t get_pid_from_file(const char* file_path);
+
+/* Return true if process running */
+extern bool is_process_running(pid_t pid);
+
+/* Demonizes current process and exit from program */
+extern bool daemonize_process(void);
+
+/* Sends SIGKILL to process */
+extern bool kill_process(pid_t pid);
+
+#endif
--
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