84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
#ifndef BLUELIB_IO_FILE_H_
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#define BLUELIB_IO_FILE_H_
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#include <blue/core/error.h>
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#include <blue/core/misc.h>
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#include <blue/core/stream.h>
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#include <blue/ds/object.h>
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#define B_FILE(p) ((b_file *)(p))
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#define B_OFFSET_CURRENT ((size_t) - 1)
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struct b_directory;
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struct b_path;
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typedef enum b_seek_basis {
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B_SEEK_BEGINNING,
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B_SEEK_CURRENT,
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B_SEEK_END
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} b_seek_basis;
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typedef enum b_file_attribute {
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B_FILE_ATTRIB_NORMAL = 0x01u,
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B_FILE_ATTRIB_DIRECTORY = 0x02u,
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B_FILE_ATTRIB_BLOCK_DEVICE = 0x04u,
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B_FILE_ATTRIB_CHAR_DEVICE = 0x08u,
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B_FILE_ATTRIB_SYMLINK = 0x80u,
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} b_file_attribute;
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typedef enum b_file_mode {
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B_FILE_READ_ONLY = 0x01u,
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B_FILE_WRITE_ONLY = 0x02u,
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B_FILE_READ_WRITE = B_FILE_READ_ONLY | B_FILE_WRITE_ONLY,
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B_FILE_TRUNCATE = 0x04u,
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B_FILE_CREATE = 0x08u,
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B_FILE_CREATE_ONLY = 0x10u | B_FILE_CREATE,
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B_FILE_APPEND = 0x20u,
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B_FILE_BINARY = 0x40u,
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B_FILE_DELETE_ON_CLOSE = 0x80u,
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B_FILE_SHADOW = 0x100u,
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} b_file_mode;
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typedef struct b_file_info {
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b_file_attribute attrib;
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b_file_mode mode;
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size_t length;
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} b_file_info;
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typedef struct b_file b_file;
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BLUE_API b_result b_file_open(
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struct b_directory *root, const struct b_path *path, b_file_mode mode,
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b_file **out);
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BLUE_API b_result b_file_open_temp(b_file_mode mode, b_file **out);
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BLUE_API b_result b_file_open_shadow(
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b_file *original, b_file_mode mode, b_file **out);
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BLUE_API b_status b_file_open_stream(b_file *file, b_stream **out);
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BLUE_API b_status b_file_stat(b_file *file, b_file_info *out);
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BLUE_API b_status b_file_size(b_file *file, size_t *out_len);
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BLUE_API b_status b_file_cursor(b_file *file, size_t *out_pos);
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BLUE_API b_status b_file_resize(b_file *file, size_t len);
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BLUE_API b_status b_file_seek(b_file *file, long long offset, b_seek_basis basis);
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BLUE_API b_status b_file_swap_shadow(b_file *main_file, b_file *shadow_file);
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BLUE_API b_status b_file_read(
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b_file *file, size_t offset, size_t len, void *buf, size_t *nr_read);
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BLUE_API b_status b_file_write(
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b_file *file, size_t offset, size_t len, const void *buf,
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size_t *nr_written);
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static inline b_file *b_file_retain(b_file *file)
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{
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return B_FILE(b_retain(B_DSREF(file)));
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}
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static inline void b_file_release(b_file *file)
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{
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b_release(B_DSREF(file));
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}
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#endif
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