/*
* Lock_AF_UNIX -- configure unix socket file path
*/
static int
Lock_AF_UNIX(unsigned short portNumber, char *unixSocketName)
{
UNIXSOCK_PATH(sock_path, portNumber, unixSocketName);
if (strlen(sock_path) >= UNIXSOCK_PATH_BUFLEN)
{
ereport(LOG,
(errmsg("Unix-domain socket path \"%s\" is too long (maximum %d bytes)",
sock_path,
(int) (UNIXSOCK_PATH_BUFLEN - 1))));
return STATUS_ERROR;
}
/*
* Grab an interlock file associated with the socket file.
*
* Note: there are two reasons for using a socket lock file, rather than
* trying to interlock directly on the socket itself. First, it's a lot
* more portable, and second, it lets us remove any pre-existing socket
* file without race conditions.
*/
CreateSocketLockFile(sock_path, true);
/*
* Once we have the interlock, we can safely delete any pre-existing
* socket file to avoid failure at bind() time.
*/
unlink(sock_path);
return STATUS_OK;
}
/*
* Lock_AF_UNIX -- configure unix socket file path
*/
static int
Lock_AF_UNIX(char *unixSocketDir, char *unixSocketPath)
{
/*
* Grab an interlock file associated with the socket file.
*
* Note: there are two reasons for using a socket lock file, rather than
* trying to interlock directly on the socket itself. First, it's a lot
* more portable, and second, it lets us remove any pre-existing socket
* file without race conditions.
*/
CreateSocketLockFile(unixSocketPath, true, unixSocketDir);
/*
* Once we have the interlock, we can safely delete any pre-existing
* socket file to avoid failure at bind() time.
*/
(void) unlink(unixSocketPath);
/*
* Remember socket file pathnames for later maintenance.
*/
sock_paths = lappend(sock_paths, pstrdup(unixSocketPath));
return STATUS_OK;
}
static int
Lock_AF_UNIX(unsigned short port, const char *unixSocketName)
{
POOLER_UNIXSOCK_PATH(sock_path, port, unixSocketName);
CreateSocketLockFile(sock_path, true, "");
unlink(sock_path);
return 0;
}
/*
* Lock_AF_UNIX -- configure unix socket file path
*/
static int
Lock_AF_UNIX(unsigned short portNumber, char *unixSocketName)
{
UNIXSOCK_PATH(sock_path, portNumber, unixSocketName);
/*
* Grab an interlock file associated with the socket file.
*/
CreateSocketLockFile(sock_path, true);
/*
* Once we have the interlock, we can safely delete any pre-existing
* socket file to avoid failure at bind() time.
*/
unlink(sock_path);
return STATUS_OK;
}
/*
* Lock_AF_UNIX -- configure unix socket file path
*/
static int
Lock_AF_UNIX(unsigned short portNumber, char *unixSocketName)
{
UNIXSOCK_PATH(sock_path, portNumber, unixSocketName);
/*
* Grab an interlock file associated with the socket file.
*
* Note: there are two reasons for using a socket lock file, rather than
* trying to interlock directly on the socket itself. First, it's a lot
* more portable, and second, it lets us remove any pre-existing socket
* file without race conditions.
*/
CreateSocketLockFile(sock_path, true);
/*
* Once we have the interlock, we can safely delete any pre-existing
* socket file to avoid failure at bind() time.
*/
unlink(sock_path);
return STATUS_OK;
}
