comparison: ucx/buffer.h
ucx/buffer.h
- changeset 60
- abae4669fba7
- parent 58
- 733f22fca61a
- child 61
- fb07a0ab9a17
equal
deleted
inserted
replaced
| 59:c80c910fe191 | 60:abae4669fba7 |
|---|---|
| 1 #ifndef BUFFER_H | |
| 2 #define BUFFER_H | |
| 3 | |
| 4 #include <stdio.h> | |
| 5 | |
| 6 #ifdef __cplusplus | |
| 7 extern "C" { | |
| 8 #endif | |
| 9 | |
| 10 | |
| 11 /* the user shall not modify values */ | |
| 12 typedef struct UcxBuffer UcxBuffer; | |
| 13 | |
| 14 UcxBuffer *ucx_buffer_new(void *space, size_t length); | |
| 15 void ucx_buffer_free(UcxBuffer* buffer); | |
| 16 | |
| 17 /* | |
| 18 * Moves the position of the buffer to a new position relative to whence. | |
| 19 * | |
| 20 * SEEK_SET marks the start of the buffer | |
| 21 * SEEK_CUR marks the current position | |
| 22 * SEEK_END marks the first 0-byte in the buffer | |
| 23 * | |
| 24 * ucx_memseek returns 0 on success and -1 if the new position is beyond the | |
| 25 * bounds of the allocated buffer. In that case the position of the buffer | |
| 26 * remains unchanged. | |
| 27 * | |
| 28 */ | |
| 29 int ucx_buffer_seek(UcxBuffer *buffer, off_t offset, int whence); | |
| 30 size_t ucx_buffer_tell(UcxBuffer *buffer); | |
| 31 | |
| 32 /* | |
| 33 * returns non-zero, iff the current buffer position has exceeded the last | |
| 34 * available byte of the underlying buffer | |
| 35 * | |
| 36 */ | |
| 37 int ucx_buffer_eof(UcxBuffer *buffer); | |
| 38 | |
| 39 size_t ucx_bufio(void *d, size_t s, size_t n, UcxBuffer* b, _Bool read); | |
| 40 #define ucx_buffer_write(data, itemsize, nitems, buffer) \ | |
| 41 ucx_bufio(data, itemsize, nitems, buffer, 0) | |
| 42 #define ucx_buffer_read(data, itemsize, nitems, buffer) \ | |
| 43 ucx_bufio(data, itemsize, nitems, buffer, 1) | |
| 44 int ucx_buffer_putc(UcxBuffer *b, int c); | |
| 45 int ucx_buffer_getc(UcxBuffer *b); | |
| 46 | |
| 47 #ifdef __cplusplus | |
| 48 } | |
| 49 #endif | |
| 50 | |
| 51 #endif /* BUFFER_H */ | |
| 52 |
