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rpcrt4: Split code to open a pipe from RPCRT4_OpenConnection.

This commit is contained in:
Mike McCormack 2006-04-19 19:07:09 +09:00 committed by Alexandre Julliard
parent 7e709cf258
commit ae8197ef37
1 changed files with 38 additions and 54 deletions
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92
dlls/rpcrt4/rpc_binding.c
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@ -154,6 +154,42 @@ static RPC_STATUS rpcrt4_connect_pipe(RpcConnection *Connection, LPCSTR pname)
return RPC_S_SERVER_UNAVAILABLE;
}
static RPC_STATUS rpcrt4_open_pipe(RpcConnection *Connection, LPCSTR pname, BOOL wait)
{
HANDLE conn;
DWORD err, dwMode;
TRACE("connecting to %s\n", pname);
while (TRUE) {
conn = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, 0, 0);
if (conn != INVALID_HANDLE_VALUE) break;
err = GetLastError();
if (err == ERROR_PIPE_BUSY) {
TRACE("connection failed, error=%lx\n", err);
return RPC_S_SERVER_TOO_BUSY;
}
if (!wait)
return RPC_S_SERVER_UNAVAILABLE;
if (!WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
err = GetLastError();
WARN("connection failed, error=%lx\n", err);
return RPC_S_SERVER_UNAVAILABLE;
}
}
/* success */
memset(&Connection->ovl, 0, sizeof(Connection->ovl));
/* pipe is connected; change to message-read mode. */
dwMode = PIPE_READMODE_MESSAGE;
SetNamedPipeHandleState(conn, &dwMode, NULL, NULL);
Connection->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
Connection->conn = conn;
return RPC_S_OK;
}
RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
{
RPC_STATUS r = RPC_S_OK;
@ -196,73 +232,21 @@ RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
if (strcmp(Connection->Protseq, "ncalrpc") == 0) {
static LPCSTR prefix = "\\\\.\\pipe\\lrpc\\";
LPSTR pname;
HANDLE conn;
DWORD err;
DWORD dwMode;
pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
TRACE("connecting to %s\n", pname);
while (TRUE) {
if (WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
conn = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, 0, 0);
if (conn != INVALID_HANDLE_VALUE) break;
err = GetLastError();
if (err == ERROR_PIPE_BUSY) continue;
TRACE("connection failed, error=%lx\n", err);
r = rpcrt4_open_pipe(Connection, pname, TRUE);
HeapFree(GetProcessHeap(), 0, pname);
return RPC_S_SERVER_TOO_BUSY;
} else {
err = GetLastError();
WARN("connection failed, error=%lx\n", err);
HeapFree(GetProcessHeap(), 0, pname);
return RPC_S_SERVER_UNAVAILABLE;
}
}
/* success */
HeapFree(GetProcessHeap(), 0, pname);
memset(&Connection->ovl, 0, sizeof(Connection->ovl));
/* pipe is connected; change to message-read mode. */
dwMode = PIPE_READMODE_MESSAGE;
SetNamedPipeHandleState(conn, &dwMode, NULL, NULL);
Connection->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
Connection->conn = conn;
}
/* protseq=ncacn_np: named pipes */
else if (strcmp(Connection->Protseq, "ncacn_np") == 0) {
static LPCSTR prefix = "\\\\.";
LPSTR pname;
HANDLE conn;
DWORD err;
DWORD dwMode;
pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
strcat(strcpy(pname, prefix), Connection->Endpoint);
TRACE("connecting to %s\n", pname);
conn = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, 0, 0);
if (conn == INVALID_HANDLE_VALUE) {
err = GetLastError();
/* we don't need to handle ERROR_PIPE_BUSY here,
* the doc says that it is returned to the app */
WARN("connection failed, error=%lx\n", err);
r = rpcrt4_open_pipe(Connection, pname, FALSE);
HeapFree(GetProcessHeap(), 0, pname);
if (err == ERROR_PIPE_BUSY)
return RPC_S_SERVER_TOO_BUSY;
else
return RPC_S_SERVER_UNAVAILABLE;
}
/* success */
HeapFree(GetProcessHeap(), 0, pname);
memset(&Connection->ovl, 0, sizeof(Connection->ovl));
/* pipe is connected; change to message-read mode. */
dwMode = PIPE_READMODE_MESSAGE;
SetNamedPipeHandleState(conn, &dwMode, NULL, NULL);
Connection->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
Connection->conn = conn;
} else {
ERR("protseq %s not supported\n", Connection->Protseq);
return RPC_S_PROTSEQ_NOT_SUPPORTED;