1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
// TODO: add unittests for all these operations
#ifndef SkOSFile_DEFINED
#define SkOSFile_DEFINED
#include "SkString.h"
#if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_IOS)
#include <dirent.h>
#endif
#include <stddef.h> // ptrdiff_t
struct SkFILE;
enum SkFILE_Flags {
kRead_SkFILE_Flag = 0x01,
kWrite_SkFILE_Flag = 0x02
};
#ifdef _WIN32
const static char SkPATH_SEPARATOR = '\\';
#else
const static char SkPATH_SEPARATOR = '/';
#endif
SkFILE* sk_fopen(const char path[], SkFILE_Flags);
void sk_fclose(SkFILE*);
size_t sk_fgetsize(SkFILE*);
/** Return true if the file could seek back to the beginning
*/
bool sk_frewind(SkFILE*);
size_t sk_fread(void* buffer, size_t byteCount, SkFILE*);
size_t sk_fwrite(const void* buffer, size_t byteCount, SkFILE*);
char* sk_fgets(char* str, int size, SkFILE* f);
void sk_fflush(SkFILE*);
bool sk_fseek(SkFILE*, size_t);
bool sk_fmove(SkFILE*, long);
size_t sk_ftell(SkFILE*);
/** Maps a file into memory. Returns the address and length on success, NULL otherwise.
* The mapping is read only.
* When finished with the mapping, free the returned pointer with sk_fmunmap.
*/
void* sk_fmmap(SkFILE* f, size_t* length);
/** Maps a file descriptor into memory. Returns the address and length on success, NULL otherwise.
* The mapping is read only.
* When finished with the mapping, free the returned pointer with sk_fmunmap.
*/
void* sk_fdmmap(int fd, size_t* length);
/** Unmaps a file previously mapped by sk_fmmap or sk_fdmmap.
* The length parameter must be the same as returned from sk_fmmap.
*/
void sk_fmunmap(const void* addr, size_t length);
/** Returns true if the two point at the exact same filesystem object. */
bool sk_fidentical(SkFILE* a, SkFILE* b);
/** Returns the underlying file descriptor for the given file.
* The return value will be < 0 on failure.
*/
int sk_fileno(SkFILE* f);
/** Returns true if something (file, directory, ???) exists at this path,
* and has the specified access flags.
*/
bool sk_exists(const char *path, SkFILE_Flags = (SkFILE_Flags)0);
// Returns true if a directory exists at this path.
bool sk_isdir(const char *path);
// Have we reached the end of the file?
int sk_feof(SkFILE *);
// Create a new directory at this path; returns true if successful.
// If the directory already existed, this will return true.
// Description of the error, if any, will be written to stderr.
bool sk_mkdir(const char* path);
class SkOSFile {
public:
class Iter {
public:
Iter();
Iter(const char path[], const char suffix[] = NULL);
~Iter();
void reset(const char path[], const char suffix[] = NULL);
/** If getDir is true, only returns directories.
Results are undefined if true and false calls are
interleaved on a single iterator.
*/
bool next(SkString* name, bool getDir = false);
private:
#ifdef SK_BUILD_FOR_WIN
HANDLE fHandle;
uint16_t* fPath16;
#elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID) || defined(SK_BUILD_FOR_IOS)
DIR* fDIR;
SkString fPath, fSuffix;
#endif
};
};
/**
* Functions for modifying SkStrings which represent paths on the filesystem.
*/
class SkOSPath {
public:
/**
* Assembles rootPath and relativePath into a single path, like this:
* rootPath/relativePath.
* It is okay to call with a NULL rootPath and/or relativePath. A path
* separator will still be inserted.
*
* Uses SkPATH_SEPARATOR, to work on all platforms.
*/
static SkString Join(const char* rootPath, const char* relativePath);
/**
* Return the name of the file, ignoring the directory structure.
* Behaves like python's os.path.basename. If the fullPath is
* /dir/subdir/, an empty string is returned.
* @param fullPath Full path to the file.
* @return SkString The basename of the file - anything beyond the
* final slash, or the full name if there is no slash.
*/
static SkString Basename(const char* fullPath);
};
#endif
|
