diff options
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | config.h | 3 | ||||
| -rw-r--r-- | pgfuse.c | 46 |
3 files changed, 48 insertions, 4 deletions
@@ -56,6 +56,9 @@ test: pgfuse testfsync # test fdatasync and fsync ./testfsync sleep 2 + # show filesystem stats (statvfs) + df -k mnt + df -i mnt fusermount -u mnt pgfuse: pgfuse.o pgsql.o @@ -30,4 +30,7 @@ * anyway.. */ #define MAX_FILE_SIZE 10485760 +/* maximum length of a filename , rather arbitrary choice */ +#define MAX_FILENAME_LENGTH 4096 + #endif @@ -25,10 +25,15 @@ #include <errno.h> /* for ENOENT and friends */ #include <sys/types.h> /* size_t */ #include <sys/stat.h> /* mode_t */ +#include <values.h> /* for INT_MAX */ #include <fuse.h> /* for user-land filesystem */ #include <fuse_opt.h> /* fuse command line parser */ +#if FUSE_VERSION < 28 +#error Currently only written for newest FUSE APIversion (FUSE_VERSION 28) +#endif + #include "config.h" /* compiled in defaults */ #include "pgsql.h" /* implements Postgresql accessers */ @@ -669,7 +674,7 @@ static int pgfuse_read( const char *path, char *buf, size_t size, return size; } -int pgfuse_truncate( const char* path, off_t offset ) +static int pgfuse_truncate( const char* path, off_t offset ) { PgFuseData *data = (PgFuseData *)fuse_get_context( )->private_data; int id; @@ -709,7 +714,7 @@ int pgfuse_truncate( const char* path, off_t offset ) return 0; } -int pgfuse_ftruncate( const char *path, off_t offset, struct fuse_file_info *fi ) +static int pgfuse_ftruncate( const char *path, off_t offset, struct fuse_file_info *fi ) { PgFuseData *data = (PgFuseData *)fuse_get_context( )->private_data; PgFuseFile *f; @@ -734,9 +739,42 @@ int pgfuse_ftruncate( const char *path, off_t offset, struct fuse_file_info *fi return 0; } -int pgfuse_utimens( const char *path, const struct timespec tv[2] ) +static int pgfuse_utimens( const char *path, const struct timespec tv[2] ) { /* TODO: write tv to 'inode' as atime and mtime */ + + return 0; +} + +static int pgfuse_statfs( const char *path, struct statvfs *buf ) +{ + PgFuseData *data = (PgFuseData *)fuse_get_context( )->private_data; + + if( data->verbose ) { + syslog( LOG_INFO, "Statfs called on '%s'", + data->mountpoint ); + } + + /* Note: f_frsize, f_favail, f_fsid and f_flag are currently ignored by FUSE */ + + memset( buf, 0, sizeof( struct statvfs ) ); + + buf->f_bsize = STANDARD_BLOCK_SIZE; + buf->f_frsize = STANDARD_BLOCK_SIZE; + /* Note: it's hard to tell how much space is left in the database + * and how big it is + */ + buf->f_blocks = INT_MAX; + buf->f_bfree = INT_MAX; + buf->f_bavail = INT_MAX; + buf->f_files = INT_MAX; + buf->f_ffree = INT_MAX; + buf->f_favail = INT_MAX; + if( data->read_only ) { + buf->f_flag |= ST_RDONLY; + } + buf->f_namemax = MAX_FILENAME_LENGTH; + return 0; } @@ -756,7 +794,7 @@ static struct fuse_operations pgfuse_oper = { .open = pgfuse_open, .read = pgfuse_read, .write = pgfuse_write, - .statfs = NULL, + .statfs = pgfuse_statfs, .flush = pgfuse_flush, .release = pgfuse_release, .fsync = pgfuse_fsync, |