Changeset 669 for trunk/kernel/kern/ksocket.h

Timestamp:

Nov 19, 2020, 11:44:34 PM (4 years ago)

Author:

alain

Message:

1) Introduce up to 4 command lines arguments in the KSH "load" command.
These arguments are transfered to the user process through the
argc/argv mechanism, using the user space "args" vseg.

2) Introduce the named and anonymous "pipes", for inter-process communication
through the pipe() and mkfifo() syscalls.

3) Introduce the "chat" application to validate the two above mechanisms.

4) Improve printk() and assert() fonctions in printk.c.

File:

• trunk/kernel/kern/ksocket.h (modified) (3 diffs)

trunk/kernel/kern/ksocket.h

@@ -440 +440 @@
  * @ fdid      : [in] file descriptor index identifying the local server socket.
  * @ crq_depth : [in] depth of CRQ queue of pending connection requests.
+ * @ return 0 if success / return -1 if failure
  ***************************************************************************************/
 int socket_listen( uint32_t fdid,
@@ -549 +550 @@
 
 /****************************************************************************************
- * This blocking function implements the sendto() syscall. 
- * It registers the <remote_addr> and <remote_port> arguments in the local socket
- * descriptor, and does the same thing as the socket_send() function above, 
- * but can be called  on an unconnected UDP socket.
- ****************************************************************************************
- * @ fdid        : [in] file descriptor index identifying the socket.
- * @ u_buf       : [in] pointer on buffer containing packet in user space.
- * @ length      : [in] packet size in bytes.
- * @ remote_addr : [in] destination IP address.
- * @ remote_port : [in] destination port.
- * @ return number of sent bytes if success / return -1 if failure.
- ***************************************************************************************/
-int socket_sendto( uint32_t    fdid,
-                   uint8_t   * u_buf,
-                   uint32_t    length,
-                   uint32_t    remote_addr,
-                   uint32_t    remote_port );
-
-/****************************************************************************************
  * This blocking function implements the recv() syscall.
  * It is used to receive data that has been stored by the NIC_RX server thread in the
@@ -594 +576 @@
 
 /****************************************************************************************
- * This blocking function implements the recvfrom() syscall.
- * It registers the <remote_addr> and <remote_port> arguments in the local socket
- * descriptor, and does the same thing as the socket_recv() function above, 
- * but can be called on an unconnected UDP socket.
- ****************************************************************************************
- * @ fdid        : [in] file descriptor index identifying the socket.
- * @ u_buf       : [in] pointer on buffer containing packet in user space.
- * @ length      : [in] packet size in bytes.
- * @ remote_addr : [in] destination IP address.
- * @ remote_port : [in] destination port.
- * @ return number of received bytes if success / return -1 if failure.
- ***************************************************************************************/
-int socket_recvfrom( uint32_t    fdid,
-                     uint8_t   * u_buf,
-                     uint32_t    length,
-                     uint32_t    remote_addr,
-                     uint32_t    remote_port );
-
-/****************************************************************************************
  * This blocking function implements the close() syscall for a socket.
  * - For a UDP socket, it simply calls the static socket_destroy() function to release