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/*
* $Header$
*
* Copyright 2006 Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. Furthermore if you modify this software you must label
* your software as modified software and not distribute it in such a
* fashion that it might be confused with the original M.I.T. software.
* M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*/
#include "ccs_common.h"
#include "ccs_os_pipe.h"
struct ccs_pipe_d {
ccs_os_pipe_t os_pipe;
};
struct ccs_pipe_d ccs_pipe_initializer = { CCS_OS_PIPE_NULL };
/* ------------------------------------------------------------------------ */
cc_int32 ccs_pipe_new (ccs_pipe_t *out_pipe,
ccs_os_pipe_t in_os_pipe)
{
cc_int32 err = ccNoError;
ccs_pipe_t new_pipe = NULL;
if (!out_pipe ) { err = cci_check_error (ccErrBadParam); }
if (!ccs_os_pipe_valid (in_os_pipe)) { err = cci_check_error (ccErrBadParam); }
if (!err) {
new_pipe = malloc (sizeof (*new_pipe));
if (new_pipe) {
*new_pipe = ccs_pipe_initializer;
} else {
err = cci_check_error (ccErrNoMem);
}
}
if (!err) {
err = ccs_os_pipe_copy (&new_pipe->os_pipe, in_os_pipe);
}
if (!err) {
*out_pipe = new_pipe;
new_pipe = NULL;
}
ccs_pipe_release (new_pipe);
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
inline cc_int32 ccs_pipe_release (ccs_pipe_t io_pipe)
{
cc_int32 err = ccNoError;
if (!io_pipe) { err = ccErrBadParam; }
if (!err) {
ccs_os_pipe_release (io_pipe->os_pipe);
free (io_pipe);
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_pipe_copy (ccs_pipe_t *out_pipe,
ccs_pipe_t in_pipe)
{
cc_int32 err = ccNoError;
if (!out_pipe) { err = cci_check_error (ccErrBadParam); }
if (!in_pipe ) { err = cci_check_error (ccErrBadParam); }
if (!err) {
err = ccs_pipe_new (out_pipe, in_pipe->os_pipe);
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_pipe_compare (ccs_pipe_t in_pipe,
ccs_pipe_t in_compare_to_pipe,
cc_uint32 *out_equal)
{
cc_int32 err = ccNoError;
if (!in_pipe ) { err = cci_check_error (ccErrBadParam); }
if (!in_compare_to_pipe) { err = cci_check_error (ccErrBadParam); }
if (!out_equal ) { err = cci_check_error (ccErrBadParam); }
if (!err) {
err = ccs_os_pipe_compare (in_pipe->os_pipe,
in_compare_to_pipe->os_pipe,
out_equal);
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_pipe_compare_to_os_pipe (ccs_pipe_t in_pipe,
ccs_os_pipe_t in_compare_to_os_pipe,
cc_uint32 *out_equal)
{
cc_int32 err = ccNoError;
if (in_pipe) { err = cci_check_error (ccErrBadParam); }
if (!err) {
err = ccs_os_pipe_compare (in_pipe->os_pipe,
in_compare_to_os_pipe,
out_equal);
}
return cci_check_error (err);
}
/* ------------------------------------------------------------------------ */
cc_int32 ccs_pipe_valid (ccs_pipe_t in_pipe)
{
if (in_pipe) {
return ccs_os_pipe_valid (in_pipe->os_pipe);
} else {
return 0;
}
}
/* ------------------------------------------------------------------------ */
ccs_os_pipe_t ccs_pipe_os (ccs_pipe_t in_pipe)
{
if (in_pipe) {
return in_pipe->os_pipe;
} else {
return CCS_OS_PIPE_NULL;
}
}
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