From: Hwankyu Jhun <h.jhun@samsung.com>
Date: Fri, 16 Jul 2021 11:16:46 +0000 (+0900)
Subject: Get LAUNCHPAD_LISTEN_FD variable from the environment
X-Git-Tag: submit/tizen/20210718.231655~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4e4552fe6768c26a2d776718c3c6a4d526cdb55c;p=platform%2Fcore%2Fappfw%2Flaunchpad.git

Get LAUNCHPAD_LISTEN_FD variable from the environment

Currently, the file descriptior is not generated sequentially in some devices.
The launchpad-process-pool is not always started by systemd. In this
case, the program sets LAUNCHPAD_LISTEN_FD variable to the environment.
After this patch is applied, the launchpad-process-pool tries to get the
fd from the environment if calling sd_listen_fd() is failed.

Change-Id: Ice99b52282b9ed7322acc185c150b6c8550d0d8d
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>
---

diff --git a/src/launchpad-process-pool/src/launchpad.c b/src/launchpad-process-pool/src/launchpad.c
index be7a14a0..8bc1d78f 100644
--- a/src/launchpad-process-pool/src/launchpad.c
+++ b/src/launchpad-process-pool/src/launchpad.c
@@ -1385,18 +1385,37 @@ static int __create_sock_activation(void)
 	return -1;
 }
 
+static int __get_launchpad_listen_fd(void)
+{
+	const char *val;
+
+	val = getenv("LAUNCHPAD_LISTEN_FD");
+	if (!val) {
+		_E("Failed to get LAUNCHPAD_LISTEN_FD");
+		return -1;
+	}
+
+	_W("Listen Fd: %s", val);
+	return atoi(val);
+}
+
 static int __launchpad_pre_init(int argc, char **argv)
 {
 	int fd;
 
 	/* create launchpad sock */
 	fd = __create_sock_activation();
+	if (fd >= 0)
+		return fd;
+
+	fd = __get_launchpad_listen_fd();
+	if (fd >= 0)
+		return fd;
+
+	fd = _create_server_sock(PROCESS_POOL_LAUNCHPAD_SOCK);
 	if (fd < 0) {
-		fd = _create_server_sock(PROCESS_POOL_LAUNCHPAD_SOCK);
-		if (fd < 0) {
-			_E("server sock error %d", fd);
-			return -1;
-		}
+		_E("server sock error %d", fd);
+		return -1;
 	}
 
 	return fd;