libjio.h File Reference
#include <stdint.h>#include <stdio.h>#include <sys/types.h>#include <sys/uio.h>#include <pthread.h>#include <unistd.h>
Include dependency graph for libjio.h:
This graph shows which files directly or indirectly include this file:
Go to the source code of this file.
Data Structures | |
| struct | jfsck_result |
| The result of a jfsck() run. More... | |
Defines | |
| #define | J_NOLOCK 1 |
| Don't lock the file before operating on it. | |
| #define | J_NOROLLBACK 2 |
| No need to read rollback information. | |
| #define | J_LINGER 4 |
| Use lingering transactions. | |
| #define | J_RDONLY 512 |
| Marks a file as read-only. | |
| #define | J_COMMITTED 1024 |
| Marks a transaction as committed. | |
| #define | J_ROLLBACKED 2048 |
| Marks a transaction as rollbacked. | |
| #define | J_ROLLBACKING 4096 |
| Marks a transaction as rollbacking. | |
| #define | J_CLEANUP 1 |
| Perform a journal cleanup. | |
Typedefs | |
| typedef struct jfs | jfs_t |
| An open file, similar to a file descriptor. | |
| typedef struct jtrans | jtrans_t |
| A single transaction. | |
Enumerations | |
| enum | jfsck_return { J_ESUCCESS = 0, J_ENOENT = -1, J_ENOJOURNAL = -2, J_ENOMEM = -3, J_ECLEANUP = -4, J_EIO = -5 } |
| jfsck() return values. More... | |
Functions | |
| jfs_t * | jopen (const char *name, int flags, int mode, unsigned int jflags) |
| Open a file. | |
| int | jclose (jfs_t *fs) |
| Close a file opened with jopen(). | |
| int | jsync (jfs_t *fs) |
| Sync a file. | |
| jtrans_t * | jtrans_new (jfs_t *fs, unsigned int flags) |
| Create a new transaction. | |
| int | jtrans_add_w (jtrans_t *ts, const void *buf, size_t count, off_t offset) |
| Add a write operation to a transaction. | |
| int | jtrans_add_r (jtrans_t *ts, void *buf, size_t count, off_t offset) |
| Add a read operation to a transaction. | |
| ssize_t | jtrans_commit (jtrans_t *ts) |
| Commit a transaction. | |
| ssize_t | jtrans_rollback (jtrans_t *ts) |
| Rollback a transaction. | |
| void | jtrans_free (jtrans_t *ts) |
| Free a transaction structure. | |
| int | jmove_journal (jfs_t *fs, const char *newpath) |
| Change the location of the journal directory. | |
| int | jfs_autosync_start (jfs_t *fs, time_t max_sec, size_t max_bytes) |
| Start an autosync thread. | |
| int | jfs_autosync_stop (jfs_t *fs) |
| Stop an autosync thread that was started using jfs_autosync_start(fs). | |
| enum jfsck_return | jfsck (const char *name, const char *jdir, struct jfsck_result *res, unsigned int flags) |
| Check and repair the given path. | |
| ssize_t | jread (jfs_t *fs, void *buf, size_t count) |
| Read from the file. | |
| ssize_t | jpread (jfs_t *fs, void *buf, size_t count, off_t offset) |
| Read from the file at the given offset. | |
| ssize_t | jreadv (jfs_t *fs, const struct iovec *vector, int count) |
| Read from the file into multiple buffers. | |
| ssize_t | jwrite (jfs_t *fs, const void *buf, size_t count) |
| Write to the file. | |
| ssize_t | jpwrite (jfs_t *fs, const void *buf, size_t count, off_t offset) |
| Write to the file at the given offset. | |
| ssize_t | jwritev (jfs_t *fs, const struct iovec *vector, int count) |
| Write to the file from multiple buffers. | |
| int | jtruncate (jfs_t *fs, off_t length) |
| Truncates the file to the given length. | |
| off_t | jlseek (jfs_t *fs, off_t offset, int whence) |
| Reposition read/write file offset. | |
| jfs_t * | jfopen (const char *path, const char *mode) |
| int | jfclose (jfs_t *stream) |
| jfs_t * | jfreopen (const char *path, const char *mode, jfs_t *stream) |
| size_t | jfread (void *ptr, size_t size, size_t nmemb, jfs_t *stream) |
| size_t | jfwrite (const void *ptr, size_t size, size_t nmemb, jfs_t *stream) |
| int | jfileno (jfs_t *stream) |
| int | jfeof (jfs_t *stream) |
| void | jclearerr (jfs_t *stream) |
| int | jferror (jfs_t *stream) |
| int | jfseek (jfs_t *stream, long offset, int whence) |
| long | jftell (jfs_t *stream) |
| void | jrewind (jfs_t *stream) |
| FILE * | jfsopen (jfs_t *stream, const char *mode) |
Define Documentation
| #define J_RDONLY 512 |
Marks a file as read-only.
For internal use only, automatically set when O_RDONLY is passed to jopen().
For internal use only.
Definition at line 471 of file libjio.h.
Referenced by jclose(), jopen(), jtrans_add_common(), and jtrans_commit().
| #define J_COMMITTED 1024 |
Marks a transaction as committed.
For internal use only.
Definition at line 482 of file libjio.h.
Referenced by jtrans_commit().
| #define J_ROLLBACKED 2048 |
Marks a transaction as rollbacked.
For internal use only.
Definition at line 486 of file libjio.h.
Referenced by jtrans_commit().
| #define J_ROLLBACKING 4096 |
Marks a transaction as rollbacking.
For internal use only.
Definition at line 490 of file libjio.h.
Referenced by jtrans_commit().
Typedef Documentation
Function Documentation
| jfs_t* jfopen | ( | const char * | path, | |
| const char * | mode | |||
| ) | [read] |
Definition at line 32 of file ansi.c.
Referenced by jfreopen().
Here is the call graph for this function:
Here is the caller graph for this function:
| int jfclose | ( | jfs_t * | stream | ) |
Definition at line 73 of file ansi.c.
Referenced by jfreopen().
Here is the call graph for this function:
Here is the caller graph for this function:
| size_t jfread | ( | void * | ptr, | |
| size_t | size, | |||
| size_t | nmemb, | |||
| jfs_t * | stream | |||
| ) |
| size_t jfwrite | ( | const void * | ptr, | |
| size_t | size, | |||
| size_t | nmemb, | |||
| jfs_t * | stream | |||
| ) |
| int jfileno | ( | jfs_t * | stream | ) |
| int jfeof | ( | jfs_t * | stream | ) |
