int gridfs_store_buffer( gridfs *gfs, const char *data,
gridfs_offset length, const char *remotename,
const char *contenttype ) {
char const *end = data + length;
const char *data_ptr = data;
bson_oid_t id;
int chunkNumber = 0;
int chunkLen;
bson *oChunk;
/* Large files Assertion */
assert( length <= 0xffffffff );
/* Generate and append an oid*/
bson_oid_gen( &id );
/* Insert the file's data chunk by chunk */
while ( data_ptr < end ) {
chunkLen = DEFAULT_CHUNK_SIZE < ( unsigned int )( end - data_ptr ) ?
DEFAULT_CHUNK_SIZE : ( unsigned int )( end - data_ptr );
oChunk = chunk_new( id, chunkNumber, data_ptr, chunkLen );
mongo_insert( gfs->client, gfs->chunks_ns, oChunk );
chunk_free( oChunk );
chunkNumber++;
data_ptr += chunkLen;
}
/* Inserts file's metadata */
return gridfs_insert_file( gfs, remotename, id, length, contenttype );
}
int gridfs_store_file( gridfs *gfs, const char *filename,
const char *remotename, const char *contenttype ) {
char buffer[DEFAULT_CHUNK_SIZE];
FILE *fd;
bson_oid_t id;
int chunkNumber = 0;
gridfs_offset length = 0;
gridfs_offset chunkLen = 0;
bson *oChunk;
/* Open the file and the correct stream */
if ( strcmp( filename, "-" ) == 0 ) fd = stdin;
else {
fd = fopen( filename, "rb" );
if (fd == NULL)
return MONGO_ERROR;
}
/* Generate and append an oid*/
bson_oid_gen( &id );
/* Insert the file chunk by chunk */
chunkLen = fread( buffer, 1, DEFAULT_CHUNK_SIZE, fd );
do {
oChunk = chunk_new( id, chunkNumber, buffer, chunkLen );
mongo_insert( gfs->client, gfs->chunks_ns, oChunk, NULL );
chunk_free( oChunk );
length += chunkLen;
chunkNumber++;
chunkLen = fread( buffer, 1, DEFAULT_CHUNK_SIZE, fd );
}
while ( chunkLen != 0 );
/* Close the file stream */
if ( fd != stdin ) fclose( fd );
/* Large files Assertion */
/* assert(length <= 0xffffffff); */
/* Optional Remote Name */
if ( remotename == NULL || *remotename == '\0' ) {
remotename = filename;
}
/* Inserts file's metadata */
return gridfs_insert_file( gfs, remotename, id, length, contenttype );
}
bson gridfile_writer_done( gridfile* gfile )
{
/* write any remaining pending chunk data.
* pending data will always take up less than one chunk
*/
bson* oChunk;
if( gfile->pending_data )
{
oChunk = chunk_new(gfile->id, gfile->chunk_num, gfile->pending_data, gfile->pending_len);
mongo_insert(gfile->gfs->client, gfile->gfs->chunks_ns, oChunk);
chunk_free(oChunk);
free(gfile->pending_data);
gfile->length += gfile->pending_len;
}
/* insert into files collection */
return gridfs_insert_file(gfile->gfs, gfile->remote_name, gfile->id,
gfile->length, gfile->content_type);
}