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Enable sending a notification when sending of an asynchronous message was

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completed (successfully or not). AMF_NOTIFY_ERR can be used if the sender 
only wishes to be notified in case of an error (e.g., EDEADSRCDST). A new
endpoint ASYNCM will be the sender of the notification.
This commit is contained in:
Thomas Veerman
2011-04-08 15:14:48 +00:00
parent 16e0e9370e
commit 7457cbe62f
6 changed files with 130 additions and 25 deletions
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3
common/include/minix/com.h
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@@ -54,6 +54,7 @@
*/
/* Kernel tasks. These all run in the same address space. */
#define ASYNCM ((endpoint_t) -5) /* notifies about finished async sends */
#define IDLE ((endpoint_t) -4) /* runs when no one else can run */
#define CLOCK ((endpoint_t) -3) /* alarms and other clock functions */
#define SYSTEM ((endpoint_t) -2) /* request system functionality */
@@ -62,7 +63,7 @@
/* Number of tasks. Note that NR_PROCS is defined in <minix/config.h>. */
#define MAX_NR_TASKS 1023
#define NR_TASKS 4
#define NR_TASKS 5
/* User-space processes, that is, device drivers, servers, and INIT. */
#define PM_PROC_NR ((endpoint_t) 0) /* process manager */

12
common/include/minix/ipc.h
View File

@@ -132,13 +132,15 @@ typedef struct asynmsg
} asynmsg_t;
/* Defines for flags field */
#define AMF_EMPTY 0 /* slot is not inuse */
#define AMF_VALID 1 /* slot contains message */
#define AMF_DONE 2 /* Kernel has processed the message. The
#define AMF_EMPTY 000 /* slot is not inuse */
#define AMF_VALID 001 /* slot contains message */
#define AMF_DONE 002 /* Kernel has processed the message. The
* result is stored in 'result'
*/
#define AMF_NOTIFY 4 /* Send a notification when AMF_DONE is set */
#define AMF_NOREPLY 8 /* Not a reply message for a SENDREC */
#define AMF_NOTIFY 004 /* Send a notification when AMF_DONE is set */
#define AMF_NOREPLY 010 /* Not a reply message for a SENDREC */
#define AMF_NOTIFY_ERR 020 /* Send a notification when AMF_DONE is set and
* delivery of the message failed */
/* Hide names to avoid name space pollution. */
#define echo _echo