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(trunk libT) patch from wereHamster to recycle the zlib deflate stream s.t. we don't have to keep reallocating it

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This commit is contained in:
Charles Kerr 2008-12-30 20:40:48 +00:00
parent ad69a937ef
commit 20e1222078
1 changed files with 27 additions and 16 deletions
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43
libtransmission/rpc-server.c
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@ -57,6 +57,10 @@ struct tr_rpc_server
char * password;
char * whitelistStr;
tr_list * whitelist;
#ifdef HAVE_ZLIB
z_stream stream;
#endif
};
#define dbgmsg( ... ) \
@ -222,6 +226,7 @@ mimetype_guess( const char * path )
static void
add_response( struct evhttp_request * req,
struct tr_rpc_server * server,
struct evbuffer * out,
const void * content,
size_t content_len )
@ -240,28 +245,22 @@ add_response( struct evhttp_request * req,
else
{
int state;
z_stream stream;
stream.zalloc = (alloc_func) Z_NULL;
stream.zfree = (free_func) Z_NULL;
stream.opaque = (voidpf) Z_NULL;
deflateInit( &stream, Z_BEST_COMPRESSION );
stream.next_in = (Bytef*) content;
stream.avail_in = content_len;
server->stream.next_in = (Bytef*) content;
server->stream.avail_in = content_len;
/* allocate space for the raw data and call deflate() just once --
* we won't use the deflated data if it's longer than the raw data,
* so it's okay to let deflate() run out of output buffer space */
evbuffer_expand( out, content_len );
stream.next_out = EVBUFFER_DATA( out );
stream.avail_out = content_len;
server->stream.next_out = EVBUFFER_DATA( out );
server->stream.avail_out = content_len;
state = deflate( &stream, Z_FINISH );
state = deflate( &server->stream, Z_FINISH );
if( state == Z_STREAM_END )
{
EVBUFFER_LENGTH( out ) = content_len - stream.avail_out;
EVBUFFER_LENGTH( out ) = content_len - server->stream.avail_out;
/* http://carsten.codimi.de/gzip.yaws/
It turns out that some browsers expect deflated data without
@ -287,13 +286,14 @@ add_response( struct evhttp_request * req,
evbuffer_add( out, content, content_len );
}
deflateEnd( &stream );
deflateReset( &server->stream );
}
#endif
}
static void
serve_file( struct evhttp_request * req,
struct tr_rpc_server * server,
const char * filename )
{
if( req->type != EVHTTP_REQ_GET )
@ -323,7 +323,7 @@ serve_file( struct evhttp_request * req,
out = tr_getBuffer( );
evhttp_add_header( req->output_headers, "Content-Type",
mimetype_guess( filename ) );
add_response( req, out, content, content_len );
add_response( req, server, out, content, content_len );
evhttp_send_reply( req, HTTP_OK, "OK", out );
tr_releaseBuffer( out );
@ -367,7 +367,7 @@ handle_clutch( struct evhttp_request * req,
TR_PATH_DELIMITER_STR,
subpath && *subpath ? subpath : "index.html" );
serve_file( req, filename );
serve_file( req, server, filename );
tr_free( filename );
tr_free( subpath );
@ -400,7 +400,7 @@ handle_rpc( struct evhttp_request * req,
}
buf = tr_getBuffer( );
add_response( req, buf, out, len );
add_response( req, server, buf, out, len );
evhttp_add_header( req->output_headers, "Content-Type",
"application/json; charset=UTF-8" );
evhttp_send_reply( req, HTTP_OK, "OK", buf );
@ -691,6 +691,9 @@ closeServer( void * vserver )
stopServer( s );
while(( tmp = tr_list_pop_front( &s->whitelist )))
tr_free( tmp );
#ifdef HAVE_ZLIB
deflateEnd( &s->stream );
#endif
tr_free( s->whitelistStr );
tr_free( s->username );
tr_free( s->password );
@ -725,6 +728,14 @@ tr_rpcInit( tr_session * session,
s->isPasswordEnabled = isPasswordEnabled;
s->isEnabled = isEnabled != 0;
tr_rpcSetWhitelist( s, whitelist ? whitelist : "127.0.0.1" );
#ifdef HAVE_ZLIB
s->stream.zalloc = (alloc_func) Z_NULL;
s->stream.zfree = (free_func) Z_NULL;
s->stream.opaque = (voidpf) Z_NULL;
deflateInit( &s->stream, Z_BEST_COMPRESSION );
#endif
if( isEnabled )
tr_runInEventThread( session, startServer, s );