fsal_status_t MFSL_read(mfsl_file_t * file_descriptor, /* IN */
fsal_seek_t * seek_descriptor, /* [IN] */
fsal_size_t buffer_size, /* IN */
caddr_t buffer, /* OUT */
fsal_size_t * read_amount, /* OUT */
fsal_boolean_t * end_of_file, /* OUT */
mfsl_context_t * p_mfsl_context, /* IN */
void * pextra
)
{
return FSAL_read(&file_descriptor->fsal_file,
seek_descriptor, buffer_size, buffer, read_amount, end_of_file);
} /* MFSL_read */
fsal_status_t MFSL_read(mfsl_file_t * file_descriptor, /* IN */
fsal_seek_t * seek_descriptor, /* [IN] */
fsal_size_t buffer_size, /* IN */
caddr_t buffer, /* OUT */
fsal_size_t * read_amount, /* OUT */
fsal_boolean_t * end_of_file, /* OUT */
mfsl_context_t * p_mfsl_context, /* IN */
void * pextra
)
{
struct timeval start, stop, delta ;
fsal_status_t fsal_status = { ERR_FSAL_NO_ERROR, 0 } ;
gettimeofday( &start, 0 ) ;
fsal_status = FSAL_read(&file_descriptor->fsal_file,
seek_descriptor, buffer_size, buffer, read_amount, end_of_file);
gettimeofday( &stop, 0 ) ;
delta = mfsl_timer_diff( &stop, &start ) ;
LogFullDebug( COMPONENT_MFSL, "%s: duration=%ld.%06ld", __FUNCTION__, delta.tv_sec, delta.tv_usec ) ;
return fsal_status ;
} /* MFSL_read */
cache_inode_status_t cache_inode_rdwr(cache_entry_t * pentry,
cache_inode_io_direction_t read_or_write,
fsal_seek_t * seek_descriptor,
fsal_size_t buffer_size,
fsal_size_t * pio_size,
fsal_attrib_list_t * pfsal_attr,
caddr_t buffer,
fsal_boolean_t * p_fsal_eof,
hash_table_t * ht,
cache_inode_client_t * pclient,
fsal_op_context_t * pcontext,
uint64_t stable,
cache_inode_status_t * pstatus)
{
int statindex = 0;
cache_content_io_direction_t io_direction;
cache_content_status_t cache_content_status;
fsal_status_t fsal_status;
fsal_openflags_t openflags;
fsal_size_t io_size;
fsal_attrib_list_t post_write_attr;
fsal_status_t fsal_status_getattr;
struct stat buffstat;
/* Set the return default to CACHE_INODE_SUCCESS */
*pstatus = CACHE_INODE_SUCCESS;
/* For now, only FSAL_SEEK_SET is supported */
if(seek_descriptor->whence != FSAL_SEEK_SET)
{
LogCrit(COMPONENT_CACHE_INODE,
"Implementation trouble: seek_descriptor was not a 'FSAL_SEEK_SET' cursor");
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
return *pstatus;
}
io_size = buffer_size;
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: INODE : IO Size = %llu fdsize =%zu seeksize=%zu",
buffer_size, sizeof(fsal_file_t), sizeof(fsal_seek_t));
/* stat */
pclient->stat.nb_call_total += 1;
if(read_or_write == CACHE_INODE_READ)
{
statindex = CACHE_INODE_READ_DATA;
io_direction = CACHE_CONTENT_READ;
openflags = FSAL_O_RDONLY;
pclient->stat.func_stats.nb_call[CACHE_INODE_READ_DATA] += 1;
}
else
{
statindex = CACHE_INODE_WRITE_DATA;
io_direction = CACHE_CONTENT_WRITE;
openflags = FSAL_O_WRONLY;
pclient->stat.func_stats.nb_call[CACHE_INODE_WRITE_DATA] += 1;
}
P_w(&pentry->lock);
/* IO are done only on REGULAR_FILEs */
if(pentry->internal_md.type != REGULAR_FILE)
{
*pstatus = CACHE_INODE_BAD_TYPE;
V_w(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[statindex] += 1;
return *pstatus;
}
/* Non absolute address within the file are not supported (we act only like pread/pwrite) */
if(seek_descriptor->whence != FSAL_SEEK_SET)
{
*pstatus = CACHE_INODE_INVALID_ARGUMENT;
V_w(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[statindex] += 1;
return *pstatus;
}
/* Do we use stable or unstable storage ? */
if(stable == FSAL_UNSAFE_WRITE_TO_GANESHA_BUFFER)
{
/* Data will be stored in memory and not flush to FSAL */
/* If the unstable_data buffer allocated ? */
if(pentry->object.file.unstable_data.buffer == NULL)
{
if((pentry->object.file.unstable_data.buffer =
Mem_Alloc_Label(CACHE_INODE_UNSTABLE_BUFFERSIZE,
"Cache_Inode Unstable Buffer")) == NULL)
{
*pstatus = CACHE_INODE_MALLOC_ERROR;
V_w(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[statindex] += 1;
return *pstatus;
}
pentry->object.file.unstable_data.offset = seek_descriptor->offset;
pentry->object.file.unstable_data.length = buffer_size;
memcpy(pentry->object.file.unstable_data.buffer, buffer, buffer_size);
/* Set mtime and ctime */
cache_inode_set_time_current( &pentry->attributes.mtime ) ;
/* BUGAZOMEU : write operation must NOT modify file's ctime */
pentry->attributes.ctime = pentry->attributes.mtime;
*pio_size = buffer_size;
} /* if( pentry->object.file.unstable_data.buffer == NULL ) */
else
{
if((pentry->object.file.unstable_data.offset < seek_descriptor->offset) &&
(buffer_size + seek_descriptor->offset < CACHE_INODE_UNSTABLE_BUFFERSIZE))
{
pentry->object.file.unstable_data.length =
buffer_size + seek_descriptor->offset;
memcpy((char *)(pentry->object.file.unstable_data.buffer +
seek_descriptor->offset), buffer, buffer_size);
/* Set mtime and ctime */
cache_inode_set_time_current( &pentry->attributes.mtime ) ;
/* BUGAZOMEU : write operation must NOT modify file's ctime */
pentry->attributes.ctime = pentry->attributes.mtime;
*pio_size = buffer_size;
}
else
{
/* Go back to regular situation */
stable = FSAL_SAFE_WRITE_TO_FS;
}
}
}
/* if( stable == FALSE ) */
if(stable == FSAL_SAFE_WRITE_TO_FS ||
stable == FSAL_UNSAFE_WRITE_TO_FS_BUFFER)
{
/* Calls file content cache to operate on the cache */
if(pentry->object.file.pentry_content != NULL)
{
/* Entry is data cached */
cache_content_rdwr(pentry->object.file.pentry_content,
io_direction,
seek_descriptor,
&io_size,
pio_size,
buffer,
p_fsal_eof,
&buffstat,
(cache_content_client_t *) pclient->pcontent_client,
pcontext, &cache_content_status);
/* If the entry under resync */
if(cache_content_status == CACHE_CONTENT_LOCAL_CACHE_NOT_FOUND)
{
/* Data cache gc has removed this entry */
if(cache_content_new_entry(pentry,
NULL,
(cache_content_client_t *)pclient->pcontent_client,
RENEW_ENTRY, pcontext,
&cache_content_status) == NULL)
{
/* Entry could not be recoverd, cache_content_status contains an error, let it be managed by the next block */
LogCrit(COMPONENT_CACHE_INODE,
"Read/Write Operation through cache failed with status %d (renew process failed)",
cache_content_status);
/* Will go to the end of the function on the error clause with cache_content_status describing the error */
}
else
{
/* Entry was successfully renewed */
LogInfo(COMPONENT_CACHE_INODE,
"----> File Content Entry %p was successfully renewed",
pentry);
/* Try to access the content of the file again */
cache_content_rdwr(pentry->object.file.pentry_content,
io_direction,
seek_descriptor,
&io_size,
pio_size,
buffer,
p_fsal_eof,
&buffstat,
(cache_content_client_t *) pclient->pcontent_client,
pcontext, &cache_content_status);
/* No management of cache_content_status in case of failure, this will be done
* within the next block */
}
}
if(cache_content_status != CACHE_CONTENT_SUCCESS)
{
*pstatus = cache_content_error_convert(cache_content_status);
V_w(&pentry->lock);
LogCrit(COMPONENT_CACHE_INODE,
"Read/Write Operation through cache failed with status %d",
cache_content_status);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[statindex] += 1;
return *pstatus;
}
LogFullDebug(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: inode/dc: io_size=%llu, pio_size=%llu, eof=%d, seek=%d.%"PRIu64,
io_size, *pio_size, *p_fsal_eof, seek_descriptor->whence,
seek_descriptor->offset);
LogMidDebug(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: INODE AFTER : IO Size = %llu %llu",
io_size, *pio_size);
/* Use information from the buffstat to update the file metadata */
pentry->attributes.filesize = buffstat.st_size;
pentry->attributes.spaceused =
buffstat.st_blksize * buffstat.st_blocks;
}
else
{
/* No data cache entry, we operated directly on FSAL */
pentry->attributes.asked_attributes = pclient->attrmask;
/* We need to open if we don't have a cached
* descriptor or our open flags differs.
*/
if(cache_inode_open(pentry,
pclient,
openflags, pcontext, pstatus) != CACHE_INODE_SUCCESS)
{
V_w(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[statindex] += 1;
return *pstatus;
}
/* Call FSAL_read or FSAL_write */
if(read_or_write == CACHE_INODE_READ)
{
#ifdef _USE_MFSL
fsal_status = MFSL_read(&(pentry->object.file.open_fd.mfsl_fd),
seek_descriptor,
io_size,
buffer,
pio_size, p_fsal_eof, &pclient->mfsl_context, NULL);
#else
fsal_status = FSAL_read(&(pentry->object.file.open_fd.fd),
seek_descriptor,
io_size, buffer, pio_size, p_fsal_eof);
#endif
}
else
{
#ifdef _USE_MFSL
fsal_status = MFSL_write(&(pentry->object.file.open_fd.mfsl_fd),
seek_descriptor,
io_size, buffer, pio_size, &pclient->mfsl_context, NULL);
#else
fsal_status = FSAL_write(&(pentry->object.file.open_fd.fd),
seek_descriptor, io_size, buffer, pio_size);
#endif
#if 0
/* Alright, the unstable write is complete. Now if it was supposed to be a stable write
* we can sync to the hard drive. */
if(stable == FSAL_SAFE_WRITE_TO_FS)
{
#ifdef _USE_MFSL
fsal_status = MFSL_commit(&(pentry->object.file.open_fd.mfsl_fd), NULL);
#else
fsal_status = FSAL_commit(&(pentry->object.file.open_fd.fd));
#endif
#endif
}
LogFullDebug(COMPONENT_FSAL,
"cache_inode_rdwr: FSAL IO operation returned %d, asked_size=%llu, effective_size=%llu",
fsal_status.major, (unsigned long long)io_size,
(unsigned long long)*pio_size);
if(FSAL_IS_ERROR(fsal_status))
{
if(fsal_status.major == ERR_FSAL_DELAY)
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: FSAL_write returned EBUSY");
else
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: fsal_status.major = %d",
fsal_status.major);
if((fsal_status.major != ERR_FSAL_NOT_OPENED)
&& (pentry->object.file.open_fd.fileno != 0))
{
LogDebug(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: CLOSING pentry %p: fd=%d",
pentry, pentry->object.file.open_fd.fileno);
#ifdef _USE_MFSL
MFSL_close(&(pentry->object.file.open_fd.mfsl_fd), &pclient->mfsl_context, NULL);
#else
FSAL_close(&(pentry->object.file.open_fd.fd));
#endif
*pstatus = cache_inode_error_convert(fsal_status);
}
else
{
/* the fd has been close by another thread.
* return CACHE_INODE_FSAL_DELAY so the client will
* retry with a new fd.
*/
*pstatus = CACHE_INODE_FSAL_DELAY;
}
pentry->object.file.open_fd.last_op = 0;
pentry->object.file.open_fd.fileno = 0;
V_w(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[statindex] += 1;
return *pstatus;
}
LogFullDebug(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: inode/direct: io_size=%llu, pio_size=%llu, eof=%d, seek=%d.%"PRIu64,
io_size, *pio_size, *p_fsal_eof, seek_descriptor->whence,
seek_descriptor->offset);
if(cache_inode_close(pentry, pclient, pstatus) != CACHE_INODE_SUCCESS)
{
LogEvent(COMPONENT_CACHE_INODE,
"cache_inode_rdwr: cache_inode_close = %d", *pstatus);
V_w(&pentry->lock);
/* stats */
pclient->stat.func_stats.nb_err_unrecover[statindex] += 1;
return *pstatus;
}
if(read_or_write == CACHE_INODE_WRITE)
{
/* Do a getattr in order to have update information on filesize
* This query is done directly on FSAL (object is not data cached), and result
* will be propagated to cache Inode */
/* WARNING: This operation is to be done AFTER FSAL_close (some FSAL, like POSIX,
* may not flush data until the file is closed */
/*post_write_attr.asked_attributes = pclient->attrmask ; */
post_write_attr.asked_attributes = FSAL_ATTR_SIZE | FSAL_ATTR_SPACEUSED;
fsal_status_getattr =
FSAL_getattrs(&(pentry->handle), pcontext,
&post_write_attr);
/* if failed, the next block will handle the error */
if(FSAL_IS_ERROR(fsal_status_getattr))
fsal_status = fsal_status_getattr;
else
{
/* Update Cache Inode attributes */
pentry->attributes.filesize = post_write_attr.filesize;
pentry->attributes.spaceused = post_write_attr.spaceused;
}
}
}
/* IO was successfull (through cache content or not), we manually update the times in the attributes */
switch (read_or_write)
{
case CACHE_INODE_READ:
/* Set the atime */
cache_inode_set_time_current( & pentry->attributes.atime ) ;
break;
case CACHE_INODE_WRITE:
/* Set mtime and ctime */
cache_inode_set_time_current( & pentry->attributes.mtime ) ;
/* BUGAZOMEU : write operation must NOT modify file's ctime */
pentry->attributes.ctime = pentry->attributes.mtime;
break;
}
}
/* if(stable == TRUE ) */
/* Return attributes to caller */
if(pfsal_attr != NULL)
*pfsal_attr = pentry->attributes;
*pstatus = CACHE_INODE_SUCCESS;
/* stat */
if(read_or_write == CACHE_INODE_READ)
{
*pstatus = cache_inode_valid(pentry, CACHE_INODE_OP_GET, pclient);
if(*pstatus != CACHE_INODE_SUCCESS)
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_READ] += 1;
else
pclient->stat.func_stats.nb_success[CACHE_INODE_READ] += 1;
}
else
{
*pstatus = cache_inode_valid(pentry, CACHE_INODE_OP_SET, pclient);
if(*pstatus != CACHE_INODE_SUCCESS)
pclient->stat.func_stats.nb_err_unrecover[CACHE_INODE_WRITE] += 1;
else
pclient->stat.func_stats.nb_success[CACHE_INODE_WRITE] += 1;
}
V_w(&pentry->lock);
return *pstatus;
} /* cache_inode_rdwr */
fsal_status_t PROXYFSAL_rcp_by_fileid(proxyfsal_handle_t * filehandle, /* IN */
fsal_u64_t fileid, /* IN */
proxyfsal_op_context_t * p_context, /* IN */
fsal_path_t * p_local_path, /* IN */
fsal_rcpflag_t transfer_opt /* IN */
)
{
int local_fd;
int local_flags;
proxyfsal_file_t fs_fd;
fsal_openflags_t fs_flags;
fsal_status_t st = FSAL_STATUS_NO_ERROR;
/* >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
* This is a template implementation of rcp based on FSAL_read and FSAL_write
* function. You may chose keeping it or doing your own implementation
* that is optimal for your filesystems.
* <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
*/
caddr_t IObuffer;
int to_local = FALSE;
int to_fs = FALSE;
int eof = FALSE;
ssize_t local_size;
fsal_size_t fs_size;
/* sanity checks. */
if(!filehandle || !p_context || !p_local_path)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_rcp);
to_local = ((transfer_opt & FSAL_RCP_FS_TO_LOCAL) == FSAL_RCP_FS_TO_LOCAL);
to_fs = ((transfer_opt & FSAL_RCP_LOCAL_TO_FS) == FSAL_RCP_LOCAL_TO_FS);
if(to_local)
LogFullDebug(COMPONENT_FSAL,
"FSAL_rcp: FSAL -> local file (%s)", p_local_path->path);
if(to_fs)
LogFullDebug(COMPONENT_FSAL,
"FSAL_rcp: local file -> FSAL (%s)", p_local_path->path);
/* must give the sens of transfert (exactly one) */
if((!to_local && !to_fs) || (to_local && to_fs))
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_rcp);
/* first, open local file with the correct flags */
if(to_fs)
{
local_flags = O_RDONLY;
}
else
{
local_flags = O_WRONLY | O_TRUNC;
if((transfer_opt & FSAL_RCP_LOCAL_CREAT) == FSAL_RCP_LOCAL_CREAT)
local_flags |= O_CREAT;
if((transfer_opt & FSAL_RCP_LOCAL_EXCL) == FSAL_RCP_LOCAL_EXCL)
local_flags |= O_EXCL;
}
if(isFullDebug(COMPONENT_FSAL))
{
char msg[1024];
msg[0] = '\0';
if((local_flags & O_RDONLY) == O_RDONLY)
strcat(msg, "O_RDONLY ");
if((local_flags & O_WRONLY) == O_WRONLY)
strcat(msg, "O_WRONLY ");
if((local_flags & O_TRUNC) == O_TRUNC)
strcat(msg, "O_TRUNC ");
if((local_flags & O_CREAT) == O_CREAT)
strcat(msg, "O_CREAT ");
if((local_flags & O_EXCL) == O_EXCL)
strcat(msg, "O_EXCL ");
LogFullDebug(COMPONENT_FSAL, "Openning local file %s with flags: %s",
p_local_path->path, msg);
}
local_fd = open(p_local_path->path, local_flags, 0644);
if(local_fd == -1)
{
/** @todo : put a function in fsal_convert.c that convert your local
* filesystem errors to an FSAL error code.
* So you will have a call like :
* Return( unix2fsal_error(errno) , errno , INDEX_FSAL_rcp );
*/
Return(ERR_FSAL_SERVERFAULT, errno, INDEX_FSAL_rcp);
}
/* call FSAL_open with the correct flags */
if(to_fs)
{
fs_flags = FSAL_O_WRONLY | FSAL_O_TRUNC;
/* invalid flags for local to filesystem */
if(((transfer_opt & FSAL_RCP_LOCAL_CREAT) == FSAL_RCP_LOCAL_CREAT)
|| ((transfer_opt & FSAL_RCP_LOCAL_EXCL) == FSAL_RCP_LOCAL_EXCL))
{
/* clean & return */
close(local_fd);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_rcp);
}
}
else
{
fs_flags = FSAL_O_RDONLY;
}
if(isFullDebug(COMPONENT_FSAL))
{
char msg[1024];
msg[0] = '\0';
if((fs_flags & FSAL_O_RDONLY) == FSAL_O_RDONLY)
strcat(msg, "FSAL_O_RDONLY ");
if((fs_flags & FSAL_O_WRONLY) == FSAL_O_WRONLY)
strcat(msg, "FSAL_O_WRONLY ");
if((fs_flags & FSAL_O_TRUNC) == FSAL_O_TRUNC)
strcat(msg, "FSAL_O_TRUNC ");
LogFullDebug(COMPONENT_FSAL, "Openning FSAL file with flags: %s", msg);
}
st = FSAL_open_by_fileid(filehandle, fileid, p_context, fs_flags, &fs_fd, NULL);
if(FSAL_IS_ERROR(st))
{
/* clean & return */
close(local_fd);
Return(st.major, st.minor, INDEX_FSAL_rcp);
}
LogFullDebug(COMPONENT_FSAL,
"Allocating IO buffer of size %llu",
(unsigned long long)RCP_BUFFER_SIZE);
/* Allocates buffer */
IObuffer = (caddr_t) Mem_Alloc(RCP_BUFFER_SIZE);
if(IObuffer == NULL)
{
/* clean & return */
close(local_fd);
FSAL_close(&fs_fd);
Return(ERR_FSAL_NOMEM, Mem_Errno, INDEX_FSAL_rcp);
}
/* read/write loop */
while(!eof)
{
/* initialize error code */
st = FSAL_STATUS_NO_ERROR;
LogFullDebug(COMPONENT_FSAL, "Read a block from source");
/* read */
if(to_fs) /* from local filesystem */
{
local_size = read(local_fd, IObuffer, RCP_BUFFER_SIZE);
if(local_size == -1)
{
st.major = ERR_FSAL_IO;
st.minor = errno;
break; /* exit loop */
}
eof = (local_size == 0);
}
else /* from FSAL filesystem */
{
fs_size = 0;
st = FSAL_read(&fs_fd, NULL, RCP_BUFFER_SIZE, IObuffer, &fs_size, &eof);
if(FSAL_IS_ERROR(st))
break; /* exit loop */
}
/* write (if not eof) */
if(!eof || ((!to_fs) && (fs_size > 0)))
{
LogFullDebug(COMPONENT_FSAL, "Write a block to destination");
if(to_fs) /* to FSAL filesystem */
{
st = FSAL_write(&fs_fd, NULL, local_size, IObuffer, &fs_size);
if(FSAL_IS_ERROR(st))
break; /* exit loop */
}
else /* to local filesystem */
{
local_size = write(local_fd, IObuffer, fs_size);
if(local_size == -1)
{
st.major = ERR_FSAL_IO;
st.minor = errno;
break; /* exit loop */
}
} /* if to_fs */
} /* if eof */
else
LogFullDebug(COMPONENT_FSAL, "End of source file reached");
} /* while !eof */
/* Clean */
Mem_Free(IObuffer);
close(local_fd);
FSAL_close_by_fileid(&fs_fd, fileid);
/* return status. */
Return(st.major, st.minor, INDEX_FSAL_rcp);
} /* FSAL_rcp_by_name */
fsal_status_t GPFSFSAL_rcp(fsal_handle_t * filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_path_t * p_local_path, /* IN */
fsal_rcpflag_t transfer_opt /* IN */
)
{
int local_fd;
int local_flags;
int errsv;
fsal_file_t fs_fd;
fsal_openflags_t fs_flags;
fsal_status_t st = FSAL_STATUS_NO_ERROR;
/* default buffer size for RCP: 10MB */
#define RCP_BUFFER_SIZE 10485760
caddr_t IObuffer;
int to_local = FALSE;
int to_fs = FALSE;
int eof = FALSE;
ssize_t local_size;
fsal_size_t fs_size;
/* sanity checks. */
if(!filehandle || !p_context || !p_local_path)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_rcp);
to_local = ((transfer_opt & FSAL_RCP_FS_TO_LOCAL) == FSAL_RCP_FS_TO_LOCAL);
to_fs = ((transfer_opt & FSAL_RCP_LOCAL_TO_FS) == FSAL_RCP_LOCAL_TO_FS);
if(to_local)
LogFullDebug(COMPONENT_FSAL,
"FSAL_rcp: FSAL -> local file (%s)", p_local_path->path);
if(to_fs)
LogFullDebug(COMPONENT_FSAL,
"FSAL_rcp: local file -> FSAL (%s)", p_local_path->path);
/* must give the sens of transfert (exactly one) */
if((!to_local && !to_fs) || (to_local && to_fs))
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_rcp);
/* first, open local file with the correct flags */
if(to_fs)
{
local_flags = O_RDONLY;
}
else
{
local_flags = O_WRONLY | O_TRUNC;
if((transfer_opt & FSAL_RCP_LOCAL_CREAT) == FSAL_RCP_LOCAL_CREAT)
local_flags |= O_CREAT;
if((transfer_opt & FSAL_RCP_LOCAL_EXCL) == FSAL_RCP_LOCAL_EXCL)
local_flags |= O_EXCL;
}
if(isFullDebug(COMPONENT_FSAL))
{
char msg[1024];
msg[0] = '\0';
if((local_flags & O_RDONLY) == O_RDONLY)
strcat(msg, "O_RDONLY ");
if((local_flags & O_WRONLY) == O_WRONLY)
strcat(msg, "O_WRONLY ");
if((local_flags & O_TRUNC) == O_TRUNC)
strcat(msg, "O_TRUNC ");
if((local_flags & O_CREAT) == O_CREAT)
strcat(msg, "O_CREAT ");
if((local_flags & O_EXCL) == O_EXCL)
strcat(msg, "O_EXCL ");
LogFullDebug(COMPONENT_FSAL, "Openning local file %s with flags: %s",
p_local_path->path, msg);
}
local_fd = open(p_local_path->path, local_flags);
errsv = errno;
if(local_fd == -1)
{
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_rcp);
}
/* call FSAL_open with the correct flags */
if(to_fs)
{
fs_flags = FSAL_O_WRONLY | FSAL_O_TRUNC;
/* invalid flags for local to filesystem */
if(((transfer_opt & FSAL_RCP_LOCAL_CREAT) == FSAL_RCP_LOCAL_CREAT)
|| ((transfer_opt & FSAL_RCP_LOCAL_EXCL) == FSAL_RCP_LOCAL_EXCL))
{
/* clean & return */
close(local_fd);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_rcp);
}
}
else
{
fs_flags = FSAL_O_RDONLY;
}
if(isFullDebug(COMPONENT_FSAL))
{
char msg[1024];
msg[0] = '\0';
if((fs_flags & FSAL_O_RDONLY) == FSAL_O_RDONLY)
strcat(msg, "FSAL_O_RDONLY ");
if((fs_flags & FSAL_O_WRONLY) == FSAL_O_WRONLY)
strcat(msg, "FSAL_O_WRONLY ");
if((fs_flags & FSAL_O_TRUNC) == FSAL_O_TRUNC)
strcat(msg, "FSAL_O_TRUNC ");
LogFullDebug(COMPONENT_FSAL, "Openning FSAL file with flags: %s", msg);
}
st = FSAL_open(filehandle, p_context, fs_flags, &fs_fd, NULL);
if(FSAL_IS_ERROR(st))
{
/* clean & return */
close(local_fd);
Return(st.major, st.minor, INDEX_FSAL_rcp);
}
LogFullDebug(COMPONENT_FSAL,
"Allocating IO buffer of size %llu",
(unsigned long long)RCP_BUFFER_SIZE);
/* Allocates buffer */
IObuffer = gsh_malloc(RCP_BUFFER_SIZE);
if(IObuffer == NULL)
{
/* clean & return */
close(local_fd);
FSAL_close(&fs_fd, p_context);
Return(ERR_FSAL_NOMEM, ENOMEM, INDEX_FSAL_rcp);
}
/* read/write loop */
while(!eof)
{
/* initialize error code */
st = FSAL_STATUS_NO_ERROR;
LogFullDebug(COMPONENT_FSAL, "Read a block from source");
/* read */
if(to_fs) /* from local filesystem */
{
LogFullDebug(COMPONENT_FSAL,
"Read a block from local file system");
local_size = read(local_fd, IObuffer, RCP_BUFFER_SIZE);
if(local_size == -1)
{
st.major = ERR_FSAL_IO;
st.minor = errno;
break; /* exit loop */
}
eof = (local_size == 0);
if(!eof)
{
LogFullDebug(COMPONENT_FSAL,
"Write a block (%llu bytes) to FSAL",
(unsigned long long)local_size);
st = FSAL_write(&fs_fd, p_context, NULL, local_size, IObuffer, &fs_size);
if(FSAL_IS_ERROR(st))
{
LogFullDebug(COMPONENT_FSAL,
"Error writing to FSAL");
break; /* exit loop */
}
}
else
{
LogFullDebug(COMPONENT_FSAL,
"End of file on local file system");
}
}
else /* from FSAL filesystem */
{
LogFullDebug(COMPONENT_FSAL,
"Read a block from FSAL");
fs_size = 0;
st = FSAL_read(&fs_fd, p_context, NULL, RCP_BUFFER_SIZE, IObuffer, &fs_size, &eof);
if(FSAL_IS_ERROR(st))
break; /* exit loop */
if(fs_size > 0)
{
LogFullDebug(COMPONENT_FSAL,
"Write a block (%llu bytes) to local file system",
(unsigned long long)fs_size);
local_size = write(local_fd, IObuffer, fs_size);
if(local_size == -1)
{
st.major = ERR_FSAL_IO;
st.minor = errno;
break; /* exit loop */
}
}
else
{
LogFullDebug(COMPONENT_FSAL,
"End of file on FSAL");
break;
}
LogFullDebug(COMPONENT_FSAL, "Size read from source: %llu",
(unsigned long long)fs_size);
}
} /* while !eof */
/* Clean */
gsh_free(IObuffer);
close(local_fd);
FSAL_close(&fs_fd, p_context);
/* return status. */
Return(st.major, st.minor, INDEX_FSAL_rcp);
}
