1 /* ccapi/server/win/ccs_win_pipe.c */
2 /*
3 * Copyright 2008 Massachusetts Institute of Technology.
4 * All Rights Reserved.
5 *
6 * Export of this software from the United States of America may
7 * require a specific license from the United States Government.
8 * It is the responsibility of any person or organization contemplating
9 * export to obtain such a license before exporting.
10 *
11 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
12 * distribute this software and its documentation for any purpose and
13 * without fee is hereby granted, provided that the above copyright
14 * notice appear in all copies and that both that copyright notice and
15 * this permission notice appear in supporting documentation, and that
16 * the name of M.I.T. not be used in advertising or publicity pertaining
17 * to distribution of the software without specific, written prior
18 * permission. Furthermore if you modify this software you must label
19 * your software as modified software and not distribute it in such a
20 * fashion that it might be confused with the original M.I.T. software.
21 * M.I.T. makes no representations about the suitability of
22 * this software for any purpose. It is provided "as is" without express
23 * or implied warranty.
24 */
25
26 #include "assert.h"
27 #include <stdlib.h>
28 #include <malloc.h>
29
30 #include "ccs_win_pipe.h"
31 #include "cci_debugging.h"
32
33 /* Ref:
34 struct ccs_win_pipe_t {
35 char* uuid;
36 UINT64 clientHandle;
37 }
38 */
39
40 /* ------------------------------------------------------------------------ */
41
ccs_win_pipe_new(const char * uuid,const UINT64 h)42 struct ccs_win_pipe_t* ccs_win_pipe_new (const char* uuid, const UINT64 h) {
43
44 cc_int32 err = ccNoError;
45 struct ccs_win_pipe_t* out_pipe = NULL;
46 char* uuidCopy = NULL;
47
48 if (!err) {
49 if (!uuid) {err = cci_check_error(ccErrBadParam);}
50 }
51
52 if (!err) {
53 uuidCopy = (char*)malloc(1+strlen(uuid));
54 if (!uuidCopy) {err = cci_check_error(ccErrBadParam);}
55 strcpy(uuidCopy, uuid);
56 }
57
58 if (!err) {
59 out_pipe = (struct ccs_win_pipe_t*)malloc(sizeof(struct ccs_win_pipe_t));
60 if (!out_pipe) {err = cci_check_error(ccErrBadParam);}
61 out_pipe->uuid = uuidCopy;
62 out_pipe->clientHandle = h;
63 }
64
65 return out_pipe;
66 }
67
68 /* ------------------------------------------------------------------------ */
69
ccs_win_pipe_copy(WIN_PIPE ** out_pipe,const WIN_PIPE * in_pipe)70 cc_int32 ccs_win_pipe_copy (WIN_PIPE** out_pipe,
71 const WIN_PIPE* in_pipe) {
72
73 *out_pipe =
74 ccs_win_pipe_new(
75 ccs_win_pipe_getUuid (in_pipe),
76 ccs_win_pipe_getHandle(in_pipe) );
77
78 return (*out_pipe) ? ccNoError : ccErrBadParam;
79 }
80
81 /* ------------------------------------------------------------------------ */
82
ccs_win_pipe_release(const WIN_PIPE * in_pipe)83 cc_int32 ccs_win_pipe_release(const WIN_PIPE* in_pipe) {
84
85 cc_int32 err = ccNoError;
86
87 if (!ccs_win_pipe_valid(in_pipe)) {err = cci_check_error(ccErrBadParam);}
88
89 if (!err) {
90 if (!in_pipe->uuid) free(in_pipe->uuid);
91 if (!in_pipe) free(in_pipe);
92 }
93
94 return err;
95 }
96
97 /* ------------------------------------------------------------------------ */
98
ccs_win_pipe_valid(const WIN_PIPE * in_pipe)99 cc_int32 ccs_win_pipe_valid (const WIN_PIPE* in_pipe) {
100
101 if (!in_pipe) {
102 cci_check_error(ccErrBadParam);
103 return FALSE;
104 }
105
106 if (!in_pipe->uuid) {
107 cci_check_error(ccErrBadParam);
108 return FALSE;
109 }
110
111 return TRUE;
112 }
113
114 /* ------------------------------------------------------------------------ */
115
ccs_win_pipe_compare(const WIN_PIPE * in_pipe_1,const WIN_PIPE * in_pipe_2,cc_uint32 * out_equal)116 cc_int32 ccs_win_pipe_compare (const WIN_PIPE* in_pipe_1,
117 const WIN_PIPE* in_pipe_2,
118 cc_uint32 *out_equal) {
119
120 cc_int32 err = ccNoError;
121 int seq = 0;
122 *out_equal = FALSE;
123
124 if (!ccs_win_pipe_valid(in_pipe_1)) {err = cci_check_error(ccErrBadParam);}
125 if (!ccs_win_pipe_valid(in_pipe_2)) {err = cci_check_error(ccErrBadParam);}
126 if (!out_equal) {err = cci_check_error(ccErrBadParam);}
127
128 /* A disconnect doesn't have a tls* with it -- only the uuid. SO only
129 compare the uuids.
130 */
131 if (!err) {
132 seq = strcmp( ccs_win_pipe_getUuid(in_pipe_1),
133 ccs_win_pipe_getUuid(in_pipe_2) );
134 *out_equal = (seq == 0);
135 }
136
137 return err;
138 }
139
140 /* ------------------------------------------------------------------------ */
141
ccs_win_pipe_getUuid(const WIN_PIPE * in_pipe)142 char* ccs_win_pipe_getUuid (const WIN_PIPE* in_pipe) {
143
144 char* result = NULL;
145
146 if (!ccs_win_pipe_valid(in_pipe)) {cci_check_error(ccErrBadParam);}
147 else {result = in_pipe->uuid;}
148
149 return result;
150 }
151
152 /* ------------------------------------------------------------------------ */
153
ccs_win_pipe_getHandle(const WIN_PIPE * in_pipe)154 UINT64 ccs_win_pipe_getHandle (const WIN_PIPE* in_pipe) {
155
156 UINT64 result = 0;
157
158 if (!ccs_win_pipe_valid(in_pipe)) {cci_check_error(ccErrBadParam);}
159 else {result = in_pipe->clientHandle;}
160
161 return result;
162 }
163