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since gettimeofday is rather expansive, we do only fetch time once in a 5 second period, when we are delivered a SIGALRM.

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erdgeist 2007-10-13 17:40:37 +00:00
parent 4c15dc7a70
commit 6c1adb8fc8
2 changed files with 20 additions and 17 deletions
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32
opentracker.c
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@ -38,6 +38,7 @@ static time_t ot_start_time;
static const size_t SUCCESS_HTTP_HEADER_LENGTH = 80;
static const size_t SUCCESS_HTTP_SIZE_OFF = 17;
static char g_adminip[4] = {0,0,0,0};
time_t g_now;
#if defined ( WANT_BLACKLISTING ) && defined (WANT_CLOSED_TRACKER )
#error WANT_BLACKLISTING and WANT_CLOSED_TRACKER are exclusive.
@ -93,7 +94,7 @@ static void help( char *name );
static void carp( const char *routine );
static void panic( const char *routine );
static void graceful( int s );
static void signal_handler( int s );
#define HTTPERROR_400 return httperror( s, "400 Invalid Request", "This server only understands GET." )
#define HTTPERROR_400_PARAM return httperror( s, "400 Invalid Request", "Invalid parameter" )
@ -503,11 +504,14 @@ ANNOUNCE_WORKAROUND:
senddata( s, static_outbuf + reply_off, reply_size );
}
static void graceful( int s ) {
static void signal_handler( int s ) {
if( s == SIGINT ) {
signal( SIGINT, SIG_IGN);
deinit_logic();
exit( 0 );
} else if( s == SIGALRM ) {
g_now = time(NULL);
alarm(5);
}
}
@ -612,8 +616,7 @@ static void handle_accept( const int64 serversocket ) {
++ot_overall_tcp_connections;
taia_now( &t );
taia_addsec( &t, &t, OT_CLIENT_TIMEOUT );
taia_uint( &t, (unsigned int)(g_now + OT_CLIENT_TIMEOUT) );
io_timeout( i, t );
}
@ -722,15 +725,13 @@ static void handle_udp4( int64 serversocket ) {
}
static void server_mainloop( ) {
tai6464 t, next_timeout_check;
taia_now( &next_timeout_check );
time_t next_timeout_check = g_now + OT_CLIENT_TIMEOUT_CHECKINTERVAL;
for( ; ; ) {
tai6464 t;
int64 i;
taia_now( &t );
taia_addsec( &t, &t, OT_CLIENT_TIMEOUT_CHECKINTERVAL );
taia_uint( &t, (unsigned int)(g_now + OT_CLIENT_TIMEOUT_CHECKINTERVAL) );
io_waituntil( t );
while( ( i = io_canread( ) ) != -1 ) {
@ -746,11 +747,9 @@ static void server_mainloop( ) {
while( ( i = io_canwrite( ) ) != -1 )
handle_write( i );
taia_now( &t );
if( taia_less( &next_timeout_check, &t ) ) {
if( g_now > next_timeout_check ) {
handle_timeouted( );
taia_now( &next_timeout_check );
taia_addsec( &next_timeout_check, &next_timeout_check, OT_CLIENT_TIMEOUT_CHECKINTERVAL);
next_timeout_check = g_now + OT_CLIENT_TIMEOUT_CHECKINTERVAL;
}
/* See if we need to move our pools */
@ -874,13 +873,14 @@ int main( int argc, char **argv ) {
#endif
signal( SIGPIPE, SIG_IGN );
signal( SIGINT, graceful );
signal( SIGALRM, SIG_IGN );
signal( SIGINT, signal_handler );
signal( SIGALRM, signal_handler );
if( init_logic( serverdir ) == -1 )
panic( "Logic not started" );
ot_start_time = time( NULL );
g_now = ot_start_time = time( NULL );
alarm(5);
server_mainloop( );

5
trackerlogic.h
View File

@ -7,6 +7,7 @@
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
#include <stdint.h>
/* Should be called BYTE, WORD, DWORD - but some OSs already have that and there's no #iftypedef */
/* They mark memory used as data instead of integer or human readable string -
@ -39,7 +40,9 @@ typedef time_t ot_time;
#define OT_POOLS_COUNT 9
#define OT_POOLS_TIMEOUT (60*5)
#define NOW (time(NULL)/OT_POOLS_TIMEOUT)
extern time_t g_now;
#define NOW (g_now/OT_POOLS_TIMEOUT)
#define OT_VECTOR_MIN_MEMBERS 16
#define OT_VECTOR_GROW_RATIO 4