Author: mimir
Date: 2006-02-20 17:30:15 +0000 (Mon, 20 Feb 2006)
New Revision: 13568

WebSVN: 
http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=13568

Log:
Comments to async rpc connect functions.


rafal


Modified:
   branches/SAMBA_4_0/source/librpc/rpc/dcerpc_connect.c


Changeset:
Modified: branches/SAMBA_4_0/source/librpc/rpc/dcerpc_connect.c
===================================================================
--- branches/SAMBA_4_0/source/librpc/rpc/dcerpc_connect.c       2006-02-20 
15:36:45 UTC (rev 13567)
+++ branches/SAMBA_4_0/source/librpc/rpc/dcerpc_connect.c       2006-02-20 
17:30:15 UTC (rev 13568)
@@ -333,6 +333,9 @@
 };
 
 
+/*
+  Stage 2 of ncacn_ip_tcp: rpc pipe opened (or not)
+*/
 void continue_pipe_open_ncacn_ip_tcp(struct composite_context *ctx)
 {
        struct composite_context *c = talloc_get_type(ctx->async.private_data,
@@ -340,6 +343,7 @@
        struct pipe_ip_tcp_state *s = talloc_get_type(c->private_data,
                                                      struct pipe_ip_tcp_state);
 
+       /* receive result of named pipe open request on tcp/ip */
        c->status = dcerpc_pipe_open_tcp_recv(ctx);
        if (!NT_STATUS_IS_OK(c->status)) {
                DEBUG(0,("Failed to connect to %s:%d - %s\n", s->host, s->port,
@@ -352,6 +356,10 @@
 }
 
 
+/*
+  Initiate async open of a rpc connection to a rpc pipe on TCP/IP using
+  the binding structure to determine the endpoint and options
+*/
 struct composite_context* dcerpc_pipe_connect_ncacn_ip_tcp_send(TALLOC_CTX 
*mem_ctx,
                                                                struct 
dcerpc_pipe_connect *io)
 {
@@ -373,10 +381,12 @@
        c->private_data = s;
        c->event_ctx = io->pipe->conn->event_ctx;
 
+       /* store input parameters in state structure */
        s->io    = *io;
        s->host  = talloc_strdup(c, io->binding->host);
        s->port  = atoi(io->binding->endpoint);   /* port number is a binding 
endpoint here */
 
+       /* send pipe open request on tcp/ip */
        pipe_req = dcerpc_pipe_open_tcp_send(s->io.pipe->conn, s->host, 
s->port);
        if (pipe_req == NULL) {
                composite_error(c, NT_STATUS_NO_MEMORY);
@@ -389,6 +399,9 @@
 }
 
 
+/*
+  Receive result of a rpc connection to a rpc pipe on TCP/IP
+*/
 NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp_recv(struct composite_context *c)
 {
        NTSTATUS status = composite_wait(c);
@@ -398,6 +411,9 @@
 }
 
 
+/*
+  Sync version of rpc connection to a rpc pipe on TCP/IP
+*/
 NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(TALLOC_CTX *mem_ctx,
                                          struct dcerpc_pipe_connect *io)
 {
@@ -413,13 +429,17 @@
 };
 
 
+/*
+  Stage 2 of ncacn_unix: rpc pipe opened (or not)
+*/
 void continue_pipe_open_ncacn_unix_stream(struct composite_context *ctx)
 {
        struct composite_context *c = talloc_get_type(ctx->async.private_data,
                                                      struct composite_context);
        struct pipe_unix_state *s = talloc_get_type(c->private_data,
                                                    struct pipe_unix_state);
-       
+
+       /* receive result of pipe open request on unix socket */
        c->status = dcerpc_pipe_open_unix_stream_recv(ctx);
        if (!NT_STATUS_IS_OK(c->status)) {
                DEBUG(0,("Failed to open unix socket %s - %s\n",
@@ -432,6 +452,10 @@
 }
 
 
+/*
+  Initiate async open of a rpc connection to a rpc pipe on unix socket using
+  the binding structure to determine the endpoint and options
+*/
 struct composite_context* 
dcerpc_pipe_connect_ncacn_unix_stream_send(TALLOC_CTX *mem_ctx,
                                                                     struct 
dcerpc_pipe_connect *io)
 {
@@ -452,9 +476,11 @@
        c->state = COMPOSITE_STATE_IN_PROGRESS;
        c->private_data = s;
        c->event_ctx = io->pipe->conn->event_ctx;
+
+       /* prepare pipe open parameters and store them in state structure
+          also, verify whether biding endpoint is not null */
+       s->io = *io;
        
-       s->io = *io;
-
        if (!io->binding->endpoint) {
                DEBUG(0, ("Path to unix socket not specified\n"));
                composite_error(c, NT_STATUS_INVALID_PARAMETER);
@@ -462,7 +488,8 @@
        }
 
        s->path  = talloc_strdup(c, io->binding->endpoint);  /* path is a 
binding endpoint here */
-       
+
+       /* send pipe open request on unix socket */
        pipe_req = dcerpc_pipe_open_unix_stream_send(s->io.pipe->conn, s->path);
        if (pipe_req == NULL) {
                composite_error(c, NT_STATUS_NO_MEMORY);
@@ -475,6 +502,9 @@
 }
 
 
+/*
+  Receive result of a rpc connection to a pipe on unix socket
+*/
 NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream_recv(struct composite_context 
*c)
 {
        NTSTATUS status = composite_wait(c);
@@ -484,6 +514,9 @@
 }
 
 
+/*
+  Sync version of a rpc connection to a rpc pipe on unix socket
+*/
 NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream(TALLOC_CTX *mem_ctx,
                                               struct dcerpc_pipe_connect *io)
 {
@@ -498,13 +531,17 @@
 };
 
 
+/*
+  Stage 2 of ncalrpc: rpc pipe opened (or not)
+*/
 void continue_pipe_open_ncalrpc(struct composite_context *ctx)
 {
        struct composite_context *c = talloc_get_type(ctx->async.private_data,
                                                      struct composite_context);
        struct pipe_ncalrpc_state *s = talloc_get_type(c->private_data,
-                                                      struct 
pipe_ncalrpc_state);
+                                                        struct 
pipe_ncalrpc_state);
 
+       /* receive result of pipe open request on ncalrpc */
        c->status = dcerpc_pipe_connect_ncalrpc_recv(ctx);
        if (!NT_STATUS_IS_OK(c->status)) {
                DEBUG(0,("Failed to open ncalrpc pipe '%s' - %s\n", 
s->io.binding->endpoint,
@@ -517,6 +554,10 @@
 }
 
 
+/* 
+   Initiate async open of a rpc connection request on NCALRPC using
+   the binding structure to determine the endpoint and options
+*/
 struct composite_context* dcerpc_pipe_connect_ncalrpc_send(TALLOC_CTX *mem_ctx,
                                                           struct 
dcerpc_pipe_connect *io)
 {
@@ -537,9 +578,11 @@
        c->state = COMPOSITE_STATE_IN_PROGRESS;
        c->private_data = s;
        c->event_ctx = io->pipe->conn->event_ctx;
-
+       
+       /* store input parameters in state structure */
        s->io  = *io;
 
+       /* send pipe open request */
        pipe_req = dcerpc_pipe_open_pipe_send(s->io.pipe->conn, 
s->io.binding->endpoint);
        if (pipe_req == NULL) {
                composite_error(c, NT_STATUS_NO_MEMORY);
@@ -552,6 +595,9 @@
 }
 
 
+/*
+  Receive result of a rpc connection to a rpc pipe on NCALRPC
+*/
 NTSTATUS dcerpc_pipe_connect_ncalrpc_recv(struct composite_context *c)
 {
        NTSTATUS status = composite_wait(c);
@@ -561,6 +607,9 @@
 }
 
 
+/*
+  Sync version of a rpc connection to a rpc pipe on NCALRPC
+*/
 NTSTATUS dcerpc_pipe_connect_ncalrpc(TALLOC_CTX *mem_ctx,
                                     struct dcerpc_pipe_connect *io)
 {

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