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[kernel] Simplify mailbox interface to call/respond

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The only real usage of mailbox was mailbox_call or
mailbox_respond_receive. This change simplifies the interface to just
these syscalls.
This commit is contained in:
Justin C. Miller
2022-10-11 17:36:23 -07:00
parent 9ac4e51224
commit c9bcc87511
5 changed files with 53 additions and 157 deletions
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35
definitions/objects/mailbox.def
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@@ -1,5 +1,5 @@
# Mailboxes are objects that enable synchronous or asynchronous
# IPC via short message-passing of bytes and handles.
# Mailboxes are objects that enable synchronous IPC via short message-passing
# of tagged handles.
object mailbox : object {
uid 99934ad04ece1e07
@@ -13,23 +13,6 @@ object mailbox : object {
method create [constructor]
method close [destructor cap:close]
# Asynchronously send a message to the reciever
method send [cap:send] {
param tag uint64
param subtag uint64
param handles ref object [list]
}
# Receive a pending message, or block waiting for a message to
# arrive if block is true.
method receive [cap:receive] {
param tag uint64 [out]
param subtag uint64 [out]
param handles ref object [out list zero_ok]
param reply_tag uint16 [out optional]
param flags uint64
}
# Send a message to the reciever, and block until a
# response is sent. Note that getting this response
# does not require the receive capability.
@@ -39,19 +22,11 @@ object mailbox : object {
param handles ref object [inout list zero_ok]
}
# Respond to a message sent using call. Note that this
# requires the receive capability and not the send capability.
method respond [cap:receive] {
param tag uint64
param subtag uint64
param handles ref object [list zero_ok]
param reply_tag uint16
}
# Respond to a message sent using call, and wait for another
# message to arrive. Note that this does not require the send
# capability.
method respond_receive [cap:receive] {
# capability. A reply tag of 0 skips the reply and goes directly
# to waiting for a new message.
method respond [cap:receive] {
param tag uint64 [inout]
param subtag uint64 [inout]
param handles ref object [inout list zero_ok]