libsqsh v1.5.2
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sqsh_mapper.h
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28
34#ifndef SQSH_MAPPER_H
35#define SQSH_MAPPER_H
36
37#include <sqsh_common.h>
38#include <stddef.h>
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/***************************************
45 * mapper/mapper.c
46 */
47
48struct SqshMapper;
49
53struct SqshMemoryMapperImpl {
58 size_t block_size_hint;
64#ifndef SQSH__NO_DEPRECATED_FIELD
65 __attribute__((deprecated("Since 1.5.0. Use init2() instead.")))
66#endif
67 int (*init)(struct SqshMapper *mapper, const void *input, size_t *size);
72#ifndef SQSH__NO_DEPRECATED_FIELD
73 __attribute__((deprecated("Since 1.5.0. Use init2() instead.")))
74#endif
75 int (*map)(
76 const struct SqshMapper *mapper, sqsh_index_t offset, size_t size,
77 uint8_t **data);
81 int (*unmap)(const struct SqshMapper *mapper, uint8_t *data, size_t size);
85 int (*cleanup)(struct SqshMapper *mapper);
91 int (*init2)(struct SqshMapper *mapper, const void *input, uint64_t *size);
95 int (*map2)(
96 const struct SqshMapper *mapper, uint64_t offset, size_t size,
97 uint8_t **data);
98};
99
107void sqsh_mapper_set_user_data(struct SqshMapper *mapper, void *user_data);
108
117void *sqsh_mapper_user_data(const struct SqshMapper *mapper);
118
129__attribute__((deprecated("Since 1.5.0. Use sqsh_mapper_size2() instead.")))
130size_t
131sqsh_mapper_size(const struct SqshMapper *mapper);
132
142uint64_t sqsh_mapper_size2(const struct SqshMapper *mapper);
143
153size_t sqsh_mapper_block_size(const struct SqshMapper *mapper);
154
155/***************************************
156 * mapper/curl_mapper.c
157 */
158
162extern const struct SqshMemoryMapperImpl *const sqsh_mapper_impl_curl;
163
164/***************************************
165 * mapper/mmap_mapper.c
166 */
167
171extern const struct SqshMemoryMapperImpl *const sqsh_mapper_impl_mmap;
172
173/***************************************
174 * mapper/static_mapper.c
175 */
176
180extern const struct SqshMemoryMapperImpl *const sqsh_mapper_impl_static;
181
182#ifdef __cplusplus
183}
184#endif
185#endif /* SQSH_MAPPER_H */
sqsh_common.h
sqsh_index_t
size_t sqsh_index_t
typedef used for indexing
Definition sqsh_common.h:69
sqsh_mapper_impl_mmap
const struct SqshMemoryMapperImpl *const sqsh_mapper_impl_mmap
a mapper that uses mmap to map the file into memory.
sqsh_mapper_impl_static
const struct SqshMemoryMapperImpl *const sqsh_mapper_impl_static
a mapper that uses a static buffer.
sqsh_mapper_block_size
size_t sqsh_mapper_block_size(const struct SqshMapper *mapper)
sqsh_mapper_size
size_t sqsh_mapper_size(const struct SqshMapper *mapper)
sqsh_mapper_size2
uint64_t sqsh_mapper_size2(const struct SqshMapper *mapper)
sqsh_mapper_impl_curl
const struct SqshMemoryMapperImpl *const sqsh_mapper_impl_curl
a mapper that uses curl to download the file.
SqshMapper
The mapper that is used to map chunks of the archive into memory.
Definition sqsh_mapper_private.h:58
SqshMapper::sqsh_mapper_set_user_data
void sqsh_mapper_set_user_data(struct SqshMapper *mapper, void *user_data)
Sets the user data for a mapper.
SqshMapper::sqsh_mapper_user_data
void * sqsh_mapper_user_data(const struct SqshMapper *mapper)
Retrieves the user data from a mapper.
SqshMemoryMapperImpl
The implementation of a memory mapper.
Definition sqsh_mapper.h:53
SqshMemoryMapperImpl::init2
int(* init2)(struct SqshMapper *mapper, const void *input, uint64_t *size)
The initialization function for the mapper. Use sqsh_mapper_set_user_data() to set custom user data.
Definition sqsh_mapper.h:91
SqshMemoryMapperImpl::map2
int(* map2)(const struct SqshMapper *mapper, uint64_t offset, size_t size, uint8_t **data)
The function that maps a block of data into memory.
Definition sqsh_mapper.h:95
SqshMemoryMapperImpl::map
int(* map)(const struct SqshMapper *mapper, sqsh_index_t offset, size_t size, uint8_t **data)
The function that maps a block of data into memory.
Definition sqsh_mapper.h:75
SqshMemoryMapperImpl::unmap
int(* unmap)(const struct SqshMapper *mapper, uint8_t *data, size_t size)
The function that unmaps a block of data from memory.
Definition sqsh_mapper.h:81
SqshMemoryMapperImpl::init
int(* init)(struct SqshMapper *mapper, const void *input, size_t *size)
The initialization function for the mapper. Use sqsh_mapper_set_user_data() to set custom user data.
Definition sqsh_mapper.h:67
SqshMemoryMapperImpl::cleanup
int(* cleanup)(struct SqshMapper *mapper)
The cleanup function for the mapper.
Definition sqsh_mapper.h:85
SqshMemoryMapperImpl::block_size_hint
size_t block_size_hint
A hint to libsqsh to use this block size if the user did not specify one.
Definition sqsh_mapper.h:58
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