1 /*---------------------------------------------------------------------------*
2 * PFileSystemImpl.c *
3 * *
4 * Copyright 2007, 2008 Nuance Communciations, Inc. *
5 * *
6 * Licensed under the Apache License, Version 2.0 (the 'License'); *
7 * you may not use this file except in compliance with the License. *
8 * *
9 * You may obtain a copy of the License at *
10 * http://www.apache.org/licenses/LICENSE-2.0 *
11 * *
12 * Unless required by applicable law or agreed to in writing, software *
13 * distributed under the License is distributed on an 'AS IS' BASIS, *
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
15 * See the License for the specific language governing permissions and *
16 * limitations under the License. *
17 * *
18 *---------------------------------------------------------------------------*/
19
20 #include "LCHAR.h"
21 #include "PFileSystemImpl.h"
22 #include "plog.h"
23 #include "pmemory.h"
24
25 #define MTAG NULL
26
27 ESR_BOOL PFileSystemCreated = ESR_FALSE;
28
29 /**
30 * [file path, PFileSystem*] mapping.
31 */
32 PHashTable* PFileSystemPathMap = NULL;
33
34 /**
35 * Portable standard input.
36 */
37 PFile* PSTDIN = NULL;
38 /**
39 * Portable standard output.
40 */
41 PFile* PSTDOUT = NULL;
42 /**
43 * Portable standard error.
44 */
45 PFile* PSTDERR = NULL;
46
47 /**
48 * Current working directory.
49 */
50 LCHAR PFileSystemCurrentDirectory[P_PATH_MAX] = L("/");
51
52 #ifdef USE_THREAD
53 /* Prototype of private function */
54 PORTABLE_API ESR_ReturnCode PtrdFlush();
55 #endif
56
57
PFileSystemCreate(void)58 ESR_ReturnCode PFileSystemCreate(void)
59 {
60 ESR_ReturnCode rc;
61
62 if (PFileSystemCreated)
63 return ESR_SUCCESS;
64
65 #ifdef USE_STACKTRACE
66 CHKLOG(rc, PStackTraceCreate());
67 #endif
68 CHKLOG(rc, PHashTableCreate(NULL, MTAG, &PFileSystemPathMap));
69 CHKLOG(rc, PFileSystemInitializeStreamsImpl());
70 PFileSystemCreated = ESR_TRUE;
71 return ESR_SUCCESS;
72 CLEANUP:
73 return rc;
74 }
75
PFileSystemDestroy(void)76 ESR_ReturnCode PFileSystemDestroy(void)
77 {
78 ESR_ReturnCode rc;
79 LCHAR* key;
80 PHashTableEntry* entry;
81 PHashTableEntry* oldEntry;
82
83 if (!PFileSystemCreated)
84 return ESR_SUCCESS;
85 PFileSystemCreated = ESR_FALSE;
86 if (PFileSystemPathMap != NULL)
87 {
88 CHKLOG(rc, PHashTableEntryGetFirst(PFileSystemPathMap, &entry));
89 while (entry != NULL)
90 {
91 CHKLOG(rc, PHashTableEntryGetKeyValue(entry, (void **)&key, (void **)NULL));
92 oldEntry = entry;
93 CHKLOG(rc, PHashTableEntryAdvance(&entry));
94 CHKLOG(rc, PHashTableEntryRemove(oldEntry));
95 FREE(key);
96 }
97 CHKLOG(rc, PHashTableDestroy(PFileSystemPathMap));
98 PFileSystemPathMap = NULL;
99 }
100 CHKLOG(rc, PFileSystemShutdownStreamsImpl());
101 #ifdef USE_STACKTRACE
102 CHKLOG(rc, PStackTraceDestroy());
103 #endif
104 return ESR_SUCCESS;
105 CLEANUP:
106 return rc;
107 }
108