Setting Up Support for Socket Options

Setting up socket option definitions and function prototype

- Set up omrsock_linger_t pointer, OMRLinger struct to be used
  in the linger socket option.
- Set up omrsock_timeval_t pointer, OMRTimeval struct to be used
  in the timeval socket option.
- Set up omr public socket option definitions and private os
  socket option definitions.
- Set up functions prototypes for the socket option related
  functions for types integer, timeval and linger struct.

Issue: eclipse-omr#5158

Signed-off-by: Haley Cao <haleycao88@hotmail.com>

include_core/omrport.h

@@ -2161,6 +2161,22 @@ typedef struct OMRPortLibrary {
 	uint32_t (*sock_htonl)(struct OMRPortLibrary *portLibrary, uint32_t val) ;
 	/** see @ref omrsock.c::omrsock_inet_pton "omrsock_inet_pton"*/
 	int32_t (*sock_inet_pton)(struct OMRPortLibrary *portLibrary, int32_t addrFamily, const char *addr, uint8_t *result) ;
+	/** see @ref omrsock.c::omrsock_timeval_init "omrsock_timeval_init"*/
+	int32_t (*sock_timeval_init)(struct OMRPortLibrary *portLibrary, omrsock_timeval_t handle, uint32_t secTime, uint32_t uSecTime) ;
+	/** see @ref omrsock.c::omrsock_linger_init "omrsock_linger_init"*/
+	int32_t (*sock_linger_init)(struct OMRPortLibrary *portLibrary, omrsock_linger_t handle, int32_t enabled, uint16_t timeout) ;
+	/** see @ref omrsock.c::omrsock_setsockopt_int "omrsock_setsockopt_int"*/
+	int32_t (*sock_setsockopt_int)(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval) ;
+	/** see @ref omrsock.c::omrsock_setsockopt_linger "omrsock_setsockopt_linger"*/
+	int32_t (*sock_setsockopt_linger)(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval) ;
+	/** see @ref omrsock.c::omrsock_setsockopt_timeval "omrsock_setsockopt_timeval"*/
+	int32_t (*sock_setsockopt_timeval)(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval) ;
+	/** see @ref omrsock.c::omrsock_getsockopt_int "omrsock_getsockopt_int"*/
+	int32_t (*sock_getsockopt_int)(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval) ;
+	/** see @ref omrsock.c::omrsock_getsockopt_linger "omrsock_getsockopt_linger"*/
+	int32_t (*sock_getsockopt_linger)(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval) ;
+	/** see @ref omrsock.c::omrsock_getsockopt_timeval "omrsock_getsockopt_timeval"*/
+	int32_t (*sock_getsockopt_timeval)(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval) ;
 #endif /* defined(OMR_PORT_SOCKET_SUPPORT) */
 #if defined(OMR_OPT_CUDA)
 	/** CUDA configuration data */
@@ -2632,6 +2648,14 @@ extern J9_CFUNC int32_t omrport_getVersion(struct OMRPortLibrary *portLibrary);
 #define omrsock_htons(param1) privateOmrPortLibrary->sock_htons(privateOmrPortLibrary, (param1))
 #define omrsock_htonl(param1) privateOmrPortLibrary->sock_htonl(privateOmrPortLibrary, (param1))
 #define omrsock_inet_pton(param1,param2,param3) privateOmrPortLibrary->sock_inet_pton(privateOmrPortLibrary, (param1), (param2), (param3))
+#define omrsock_timeval_init(param1,param2,param3) privateOmrPortLibrary->sock_timeval_init(privateOmrPortLibrary, (param1), (param2), (param3))
+#define omrsock_linger_init(param1,param2,param3) privateOmrPortLibrary->sock_linger_init(privateOmrPortLibrary, (param1), (param2), (param3))
+#define omrsock_setsockopt_int(param1,param2,param3,param4) privateOmrPortLibrary->sock_setsockopt_int(privateOmrPortLibrary, (param1), (param2), (param3), (param4))
+#define omrsock_setsockopt_linger(param1,param2,param3,param4) privateOmrPortLibrary->sock_setsockopt_linger(privateOmrPortLibrary, (param1), (param2), (param3), (param4))
+#define omrsock_setsockopt_timeval(param1,param2,param3,param4) privateOmrPortLibrary->sock_setsockopt_timeval(privateOmrPortLibrary, (param1), (param2), (param3), (param4))
+#define omrsock_getsockopt_int(param1,param2,param3,param4) privateOmrPortLibrary->sock_getsockopt_int(privateOmrPortLibrary, (param1), (param2), (param3), (param4))
+#define omrsock_getsockopt_linger(param1,param2,param3,param4) privateOmrPortLibrary->sock_getsockopt_linger(privateOmrPortLibrary, (param1), (param2), (param3), (param4))
+#define omrsock_getsockopt_timeval(param1,param2,param3,param4) privateOmrPortLibrary->sock_getsockopt_timeval(privateOmrPortLibrary, (param1), (param2), (param3), (param4))
 #endif /* defined(OMR_PORT_SOCKET_SUPPORT) */
 
 #if defined(OMR_OPT_CUDA)

include_core/omrportsock.h

@@ -34,6 +34,12 @@ typedef struct OMRSockAddrStorage *omrsock_sockaddr_t;
 /* Pointer to OMRSocket, a struct that contains socket descriptor. */
 typedef struct OMRSocket *omrsock_socket_t;
 
+/* Pointer to OMRTimeval, a struct that contains struct timeval. */
+typedef struct OMRTimeval *omrsock_timeval_t;
+
+/* Pointer to OMRLinger, a struct that contains struct linger.*/
+typedef struct OMRLinger *omrsock_linger_t;
+
 /* Bind to all available interfaces */
 #define OMRSOCK_INADDR_ANY ((uint32_t)0)
 
@@ -47,9 +53,18 @@ typedef struct OMRSocket *omrsock_socket_t;
 #define OMRSOCK_STREAM 1
 #define OMRSOCK_DGRAM 2
 
-/* Protocol Family */
+/* Protocol Family and Socket Levels */
 #define OMRSOCK_IPPROTO_DEFAULT 0
-#define OMRSOCK_IPPROTO_TCP 1
-#define OMRSOCK_IPPROTO_UDP 2
+#define OMRSOCK_SOL_SOCKET 1
+#define OMRSOCK_IPPROTO_TCP 2
+#define OMRSOCK_IPPROTO_UDP 3
+
+/* Socket Options */
+#define OMRSOCK_SO_REUSEADDR 1
+#define OMRSOCK_SO_KEEPALIVE 2
+#define OMRSOCK_SO_LINGER 3
+#define OMRSOCK_SO_RCVTIMEO 4
+#define OMRSOCK_SO_SNDTIMEO 5
+#define OMRSOCK_TCP_NODELAY 6
 
 #endif /* !defined(OMRPORTSOCK_H_) */

include_core/omrportsocktypes.h

@@ -86,7 +86,7 @@ typedef struct OMRSocket {
 } OMRSocket;
 
 /**
- * A node in a linked-list of addrinfo. Filled in using @ref omr_getaddrinfo.
+ * A node in a linked-list of addrinfo. Filled in using @ref omrsock_getaddrinfo.
  */
 typedef struct OMRAddrInfoNode {
 	/**
@@ -100,4 +100,18 @@ typedef struct OMRAddrInfoNode {
 	uint32_t length;
 } OMRAddrInfoNode;
 
+/**
+ * A struct for storing timeval values. Filled in using @ref omrsock_timeval_init.
+ */
+typedef struct OMRTimeval {
+	struct timeval data;
+} OMRTimeval;
+
+/**
+ * A struct for storing linger values. Filled in using @ref omrsock_linger_init.
+ */
+typedef struct OMRLinger {
+	struct linger data;
+} OMRLinger;
+
 #endif /* !defined(OMRPORTSOCKTYPES_H_) */

port/common/omrport.c

@@ -329,6 +329,14 @@ static OMRPortLibrary MasterPortLibraryTable = {
 	omrsock_htons, /* sock_htons */
 	omrsock_htonl, /* sock_htonl */
 	omrsock_inet_pton, /* sock_inet_pton */
+	omrsock_timeval_init, /* sock_timeval_init */
+	omrsock_linger_init, /* sock_linger_init */
+	omrsock_setsockopt_int, /* sock_setsockopt_int */
+	omrsock_setsockopt_linger, /* sock_setsockopt_linger */
+	omrsock_setsockopt_timeval, /* sock_setsockopt_timeval */
+	omrsock_getsockopt_int, /* sock_getsockopt_int */
+	omrsock_getsockopt_linger, /* sock_getsockopt_linger */
+	omrsock_getsockopt_timeval, /* sock_getsockopt_timeval */
 #endif /* defined(OMR_PORT_SOCKET_SUPPORT) */
 #if defined(OMR_OPT_CUDA)
 	NULL, /* cuda_configData */

port/common/omrsock.c

@@ -517,4 +517,153 @@ omrsock_inet_pton(struct OMRPortLibrary *portLibrary, int32_t addrFamily, const
 	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
 }
 
+/**
+ * Create a time structure, representing the timeout period defined in seconds & microSeconds. Timeval's could be 
+ * used as timeout arguments in the @ref omrsock_setsockopt function.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[out] handle Pointer pointer to the OMRTimeval to be allocated.
+ * @param[in] secTime The integer component of the timeout value (in seconds).
+ * @param[in] uSecTime The fractional component of the timeout value (in microseconds).
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_timeval_init(struct OMRPortLibrary *portLibrary, omrsock_timeval_t handle, uint32_t secTime, uint32_t uSecTime)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+/**
+ * Initializes a new linger structure, enabled or disabled, with the timeout as specified. Linger defines the
+ * behavior when unsent messages exist for a socket that has been sent close.
+ *
+ * If linger is disabled, the default, close returns immediately and the stack attempts to deliver unsent messages.
+ * If linger is enabled:
+ * \arg if the timeout is 0, the close will block indefinitely until the messages are sent.
+ * \arg if the timeout is set, the close will return after the messages are sent or the timeout period expired.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[in] handle Pointer to the linger struct to be accessed.
+ * @param[in] enabled Aero to disable, a non-zero value to enable linger.
+ * @param[in] timeout A positive timeout value from 0 to linger indefinitely (in seconds).
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_linger_init(struct OMRPortLibrary *portLibrary, omrsock_linger_t handle, int32_t enabled, uint16_t timeout)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+/**
+ * Set the integer value of the socket option.
+ * Refer to the private get_os_socket_level & get_os_socket_option functions for details of the options
+ * supported.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[in] handle Pointer to the socket to set the option in.
+ * @param[in] optlevel The level within the IP stack at which the option is defined.
+ * @param[in] optname The name of the option to set.
+ * @param[in] optval Pointer to the option value to update the socket option with.
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_setsockopt_int(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+/**
+ * Set the linger value on the socket. 
+ * See the @ref omrsock_linger_init for setting up the linger struct and details of the linger behavior.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[in] handle Pointer to the socket to set the option in.
+ * @param[in] optlevel The level within the IP stack at which the option is defined.
+ * @param[in] optname The name of the option to set.
+ * @param[in] optval Pointer to the option value to update the socket option with.
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_setsockopt_linger(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+/**
+ * Set the timeval value on the socket. 
+ * See the @ref omrsock_timeval_init for setting up the timeval struct details of the timeval behavior.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[in] handle Pointer to the socket to set the option in.
+ * @param[in] optlevel The level within the IP stack at which the option is defined.
+ * @param[in] optname The name of the option to set.
+ * @param[in] optval Pointer to the option value to update the socket option with.
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_setsockopt_timeval(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+/**
+ * Answer the integer value of the socket option.
+ * Refer to the private get_os_socket_level & get_os_socket_option functions for details of the options
+ * supported.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[in] handle Pointer to the socket to query for the option value.
+ * @param[in] optlevel The level within the IP stack at which the option is defined.
+ * @param[in] optname The name of the option to retrieve.
+ * @param[out] optval Pointer to the pre-allocated space to update with the option value.
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_getsockopt_int(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+/**
+ * Answer the linger value on the socket. 
+ * See the @ref omrsock_linger_init for setting up the linger struct and details of the linger behavior.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[in] handle Pointer to the socket to query for the option value.
+ * @param[in] optlevel The level within the IP stack at which the option is defined.
+ * @param[in] optname The name of the option to retrieve.
+ * @param[out] optval Pointer to the pre-allocated space to update with the option value.
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_getsockopt_linger(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+/**
+ * Answer the timeval value on the socket. 
+ * See the @ref omrsock_timeval_init for setting up the timeval struct details of the timeval behavior.
+ *
+ * @param[in] portLibrary The port library.
+ * @param[in] handle Pointer to the socket to query for the option value.
+ * @param[in] optlevel The level within the IP stack at which the option is defined.
+ * @param[in] optname The name of the option to retrieve.
+ * @param[out] optval Pointer to the pre-allocated space to update with the option value.
+ *
+ * @return 0, if no errors occurred, otherwise return an error.
+ */
+int32_t
+omrsock_getsockopt_timeval(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
 #endif /* defined(OMR_PORT_SOCKET_SUPPORT) */

port/omrportpriv.h

@@ -665,6 +665,22 @@ extern J9_CFUNC uint32_t
 omrsock_htonl(struct OMRPortLibrary *portLibrary, uint32_t val);
 extern J9_CFUNC int32_t
 omrsock_inet_pton(struct OMRPortLibrary *portLibrary, int32_t addrFamily, const char *addr, uint8_t *result);
+extern J9_CFUNC int32_t
+omrsock_timeval_init(struct OMRPortLibrary *portLibrary, omrsock_timeval_t handle, uint32_t secTime, uint32_t uSecTime);
+extern J9_CFUNC int32_t
+omrsock_linger_init(struct OMRPortLibrary *portLibrary, omrsock_linger_t handle, int32_t enabled, uint16_t timeout);
+extern J9_CFUNC int32_t
+omrsock_setsockopt_int(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval);
+extern J9_CFUNC int32_t
+omrsock_setsockopt_linger(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval);
+extern J9_CFUNC int32_t
+omrsock_setsockopt_timeval(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval);
+extern J9_CFUNC int32_t
+omrsock_getsockopt_int(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval);
+extern J9_CFUNC int32_t
+omrsock_getsockopt_linger(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval);
+extern J9_CFUNC int32_t
+omrsock_getsockopt_timeval(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval);
 #endif /* defined(OMR_PORT_SOCKET_SUPPORT) */
 
 /* J9SourceJ9Str*/

port/unix/omrsock.c

@@ -657,4 +657,52 @@ omrsock_inet_pton(struct OMRPortLibrary *portLibrary, int32_t addrFamily, const
 	return 0;
 }
 
+int32_t
+omrsock_timeval_init(struct OMRPortLibrary *portLibrary, omrsock_timeval_t handle, uint32_t secTime, uint32_t uSecTime)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+int32_t
+omrsock_linger_init(struct OMRPortLibrary *portLibrary, omrsock_linger_t handle, int32_t enabled, uint16_t timeout)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+int32_t
+omrsock_setsockopt_int(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+int32_t
+omrsock_setsockopt_linger(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+int32_t
+omrsock_setsockopt_timeval(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+int32_t
+omrsock_getsockopt_int(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, int32_t *optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+int32_t
+omrsock_getsockopt_linger(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_linger_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
+int32_t
+omrsock_getsockopt_timeval(struct OMRPortLibrary *portLibrary, omrsock_socket_t handle, int32_t optlevel, int32_t optname, omrsock_timeval_t optval)
+{
+	return OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM;
+}
+
 #endif /* defined(OMR_PORT_SOCKET_SUPPORT) */

port/unix_include/omrsock.h

@@ -40,6 +40,7 @@
 
 #include <sys/types.h> /* Some historical implementations need this file, POSIX.1-2001 does not. */
 #include <sys/socket.h>
+#include <netinet/tcp.h>
 
 typedef struct sockaddr omr_os_sockaddr;
 typedef struct sockaddr_in omr_os_sockaddr_in; /* IPv4 */
@@ -57,7 +58,16 @@ typedef struct sockaddr_in6 omr_os_sockaddr_in6; /* IPv6 */
 
 /* Protocol */
 #define OS_SOCK_IPPROTO_DEFAULT 0
+#define OS_SOL_SOCKET SOL_SOCKET
 #define OS_SOCK_IPPROTO_TCP IPPROTO_TCP
 #define OS_SOCK_IPPROTO_UDP IPPROTO_UDP
 
+/* Socket options*/
+#define OS_SO_REUSEADDR SO_REUSEADDR
+#define OS_SO_KEEPALIVE SO_KEEPALIVE
+#define OS_SO_LINGER SO_LINGER
+#define OS_SO_RCVTIMEO SO_RCVTIMEO
+#define OS_SO_SNDTIMEO SO_SNDTIMEO
+#define OS_TCP_NODELAY TCP_NODELAY
+
 #endif /* !defined(OMRSOCK_H_) */