fsal_status_t WRAP_POSIXFSAL_open(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_openflags_t openflags, /* IN */
fsal_file_t * p_file_descriptor, /* OUT */
fsal_attrib_list_t *
p_file_attributes /* [ IN/OUT ] */ )
{
return POSIXFSAL_open((posixfsal_handle_t *) p_filehandle,
(posixfsal_op_context_t *) p_context, openflags,
(posixfsal_file_t *) p_file_descriptor, p_file_attributes);
}
fsal_status_t POSIXFSAL_open_by_name(posixfsal_handle_t * dirhandle, /* IN */
fsal_name_t * filename, /* IN */
posixfsal_op_context_t * p_context, /* IN */
fsal_openflags_t openflags, /* IN */
posixfsal_file_t * file_descriptor, /* OUT */
fsal_attrib_list_t *
file_attributes /* [ IN/OUT ] */ )
{
fsal_status_t fsal_status;
posixfsal_handle_t filehandle;
if(!dirhandle || !filename || !p_context || !file_descriptor)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_open_by_name);
fsal_status =
POSIXFSAL_lookup(dirhandle, filename, p_context, &filehandle, file_attributes);
if(FSAL_IS_ERROR(fsal_status))
return fsal_status;
return POSIXFSAL_open(&filehandle, p_context, openflags, file_descriptor,
file_attributes);
}
fsal_status_t POSIXFSAL_rcp(posixfsal_handle_t * filehandle, /* IN */
posixfsal_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;
posixfsal_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(isFullDebug(COMPONENT_FSAL))
{
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 = POSIXFSAL_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 = (caddr_t) Mem_Alloc(RCP_BUFFER_SIZE);
if(IObuffer == NULL)
{
/* clean & return */
close(local_fd);
POSIXFSAL_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 = POSIXFSAL_read(&fs_fd, NULL, RCP_BUFFER_SIZE, IObuffer, &fs_size, &eof);
if(FSAL_IS_ERROR(st))
break; /* exit loop */
LogFullDebug(COMPONENT_FSAL, "Size read from source: %llu",
(unsigned long long)fs_size);
}
/* 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 = POSIXFSAL_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);
LogFullDebug(COMPONENT_FSAL, "Size written to target: %llu",
(unsigned long long)local_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);
POSIXFSAL_close(&fs_fd);
/* return status. */
Return(st.major, st.minor, INDEX_FSAL_rcp);
}
