From: hyunuktak <hyunuk.tak@samsung.com>
Date: Fri, 15 Sep 2017 02:04:23 +0000 (+0900)
Subject: Get process status from procfs
X-Git-Tag: accepted/tizen/unified/20170920.081237~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=832d05fa4a9c9583cde9105623cc59d0e0fcc712;p=platform%2Fcore%2Fconnectivity%2Fstc-manager.git

Get process status from procfs

Change-Id: I8c9916ce129ec35f0f93d4d3c35afc0e67f3b7f1
Signed-off-by: hyunuktak <hyunuk.tak@samsung.com>
---

diff --git a/include/stc-manager-util.h b/include/stc-manager-util.h
index d5ee410..32b1cde 100755
--- a/include/stc-manager-util.h
+++ b/include/stc-manager-util.h
@@ -321,6 +321,14 @@ static inline bool strstart_with(const char *str, const char *with)
 
 #define PROC_BUF_MAX 64
 #define PROC_NAME_MAX 1024
+#define PROC_STATUS_CNT 6
+
+#define PROC_STATUS_NAME 0
+#define PROC_STATUS_STATE 1
+#define PROC_STATUS_TGID 2
+#define PROC_STATUS_PID 3
+#define PROC_STATUS_PPID 4
+#define PROC_STATUS_TRACERPID 5
 
 #define COMMA_DELIMETER ","
 
diff --git a/src/helper/helper-procfs.c b/src/helper/helper-procfs.c
old mode 100644
new mode 100755
index 0974f2a..ca291ac
--- a/src/helper/helper-procfs.c
+++ b/src/helper/helper-procfs.c
@@ -157,9 +157,38 @@ int proc_get_raw_cmdline(pid_t pid, char *buf, int len)
 	return proc_get_data(path, buf, len);
 }
 
-int proc_get_status(pid_t pid, char *buf, int len)
+int proc_get_status(pid_t pid, char status[][PROC_BUF_MAX])
 {
+	unsigned int i;
 	char path[PROC_BUF_MAX];
+	char status_buf[PROC_BUF_MAX];
+	FILE *fp;
+
 	snprintf(path, sizeof(path), "/proc/%d/status", pid);
-	return proc_get_data(path, buf, len);
+	fp = fopen(path, "r");
+	if (fp == NULL)
+		return STC_ERROR_FAIL;
+
+	for (i = 0; i < PROC_STATUS_CNT; ++i) {
+		char *token = NULL;
+		char *saveptr = NULL;
+
+		if (fgets(status_buf, sizeof(status_buf), fp) == NULL) {
+			fclose(fp);
+			return STC_ERROR_FAIL;
+		}
+
+		token = strtok_r(status_buf, ":", &saveptr);
+		if (token != NULL) {
+			token = strtok_r(NULL, "\n", &saveptr);
+			if (token != NULL) {
+				while (isspace((unsigned char)*token))
+					token++;
+				strncpy(status[i], token, sizeof(status[i]));
+			}
+		}
+	}
+	fclose(fp);
+
+	return STC_ERROR_NONE;
 }
diff --git a/src/helper/helper-procfs.h b/src/helper/helper-procfs.h
old mode 100644
new mode 100755
index 4f0fd02..55c6a03
--- a/src/helper/helper-procfs.h
+++ b/src/helper/helper-procfs.h
@@ -58,6 +58,6 @@ int proc_get_exepath(pid_t pid, char *buf, int len);
  * @desc get status from /proc/{pid}/status
  * @return negative value if error
  */
-int proc_get_status(pid_t pid, char *buf, int len);
+int proc_get_status(pid_t pid, char status[][PROC_BUF_MAX]);
 
 #endif /*__HELPER_PROCFS_H__*/
diff --git a/src/monitor/stc-app-lifecycle.c b/src/monitor/stc-app-lifecycle.c
index 829c989..7f5e035 100755
--- a/src/monitor/stc-app-lifecycle.c
+++ b/src/monitor/stc-app-lifecycle.c
@@ -37,7 +37,7 @@ typedef struct {
 
 typedef struct {
 	char cmdline[PROC_NAME_MAX];
-	char status[PROC_BUF_MAX];
+	char status[PROC_STATUS_CNT][PROC_BUF_MAX];
 } proc_value_s;
 
 typedef struct __attribute__ ((aligned(NLMSG_ALIGNTO))) {
@@ -317,16 +317,17 @@ stc_error_e stc_manager_app_status_changed(stc_cmd_type_e cmd,
 static void __process_event_exec(int tid, int pid)
 {
 	char cmdline[PROC_NAME_MAX] = {0, };
-	char status[PROC_BUF_MAX] = {0, };
+	char status[PROC_STATUS_CNT][PROC_BUF_MAX];
 
 	if (STC_ERROR_NONE == proc_get_cmdline(pid, cmdline) &&
-	    STC_ERROR_NONE == proc_get_status(pid, status, PROC_BUF_MAX)) {
+	    STC_ERROR_NONE == proc_get_status(pid, status)) {
 
 		if (__check_excn(cmdline)) {
 			STC_LOGI("[%s] monitoring is excepted", cmdline);
 			return;
 		}
 
+		unsigned int i;
 		proc_key_s *key;
 		proc_value_s *value;
 
@@ -344,13 +345,16 @@ static void __process_event_exec(int tid, int pid)
 		}
 
 		key->pid = pid;
-		g_strlcpy(value->status, status, sizeof(value->status));
+		for (i = 0; i < PROC_STATUS_CNT; ++i)
+			g_strlcpy(value->status[i], status[i], sizeof(value->status[i]));
 		g_strlcpy(value->cmdline, cmdline, sizeof(value->cmdline));
 
 		__proc_tree_add(key, value);
 
-		STC_LOGD("EXEC:pid=%d,tgid=%d\t[%s]\t[%s]", pid, tid, status,
-			 cmdline);
+		STC_LOGD("EXEC: pid[%d] tgid=[%d] cmdline[%s]", pid, tid, cmdline);
+		STC_LOGD("STATUS: name[%s] state[%s] tgid[%s] pid[%s] ppid[%s] tracerpid[%s]",
+			status[PROC_STATUS_NAME], status[PROC_STATUS_STATE], status[PROC_STATUS_TGID],
+			status[PROC_STATUS_PID], status[PROC_STATUS_PPID], status[PROC_STATUS_TRACERPID]);
 	}
 }