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unneback |
//==========================================================================
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//
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// tests/multi_lo_test.c
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//
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// Multiple selects-at-one-time test, using lo for portability.
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//
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//==========================================================================
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//####BSDCOPYRIGHTBEGIN####
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//
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// -------------------------------------------
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//
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// Portions of this software may have been derived from OpenBSD or other sources
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// and are covered by the appropriate copyright disclaimers included herein.
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//
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// -------------------------------------------
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//
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//####BSDCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): sorin@netappi.com, hmt
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// Contributors: gthomas,sorin@netappi.com
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// Date: 2000-05-24
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// Description:
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//
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// This test is to test that the internal producer operation to select
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// truly has broadcast semantics; there was a bug in there whereby it
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// doesn't, so events get lost and/or the wrong thread is awakened.
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//
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// We need to create N threads selecting on different sockets
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// (different ports) (including one or two selecting on several
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// sockets) and have a further thread or threads which send data to
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// the those sockets in an order "random" with respect to the order in
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// which the N selectors entered the wait, and their thread
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// priorities.
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//
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// If this all works, then we know that select always wakes the right
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// thread in the right order. I think...
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//
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// I think 10 threads 0-9 where #2,#3,#6,#7 wait for multiple threads
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// will do it. #0-4 will be prio HI, #5-9 will be prio LO. Sender
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// thread A at prio MID will send to sockets 1,3,5,7,9. Sender thread
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// B at prio LOWEST will send to sockets 0,2,4,6,8.
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//
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// Each sender thread will wait for a different semaphore signal
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// before doing their next send, thus confirming correct ordering.
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// Two common semaphores will also be signalled, one when a send
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// occurs, the other when a recv happens.
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//
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// The master thread will start off VERYHIGHPRI, then drop after
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// starting all the others, to VERYLOW... when it next runs, those
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// common semaphores should both have value 10 == NLISTENERS.
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//
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//
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//#####DESCRIPTIONEND#####
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//
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//==========================================================================
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#include <network.h>
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#include <cyg/infra/testcase.h>
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#ifndef CYGPKG_LIBC_STDIO
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#define perror(s) diag_printf(#s ": %s\n", strerror(errno))
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#endif
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#define SOURCE_PORT1 9900
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#define SOURCE_PORT2 9800 // for those who listen to multiple ports
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#define SOURCE_PORT3 9700 // for the dummy consumers of events
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#define PRIO_DUMMY 4 // Really high, so they're always right back there
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#define PRIO_LISTENER_HI 10
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#define PRIO_LISTENER_LO 15
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#define PRIO_SENDER_MID 12
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#define PRIO_SENDER_LOW 17
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#define PRIO_MASTERHIGH 3
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#define PRIO_MASTERLOW 25
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#ifndef CYGPKG_IO_FILEIO
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#if CYGPKG_IO_NFILE > 30
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#define NLISTENERS 10
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#else
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// fewer threads if not many sockets available
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#define NLISTENERS (CYGPKG_IO_NFILE/3)
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#endif
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#else
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#include <pkgconf/io_fileio.h>
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#if CYGNUM_FILEIO_NFD > 30
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#define NLISTENERS 10
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#else
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// fewer threads if not many sockets available
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#define NLISTENERS (CYGNUM_FILEIO_NFD/3)
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#endif
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#endif
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#define NDUMMIES 10
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#define NSENDERS 2
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#define NUM_BUF NLISTENERS
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#define MAX_BUF 100
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// buffers for receiving into:
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static unsigned char data_buf1[NUM_BUF][MAX_BUF];
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static unsigned char data_buf_write1[]="Client is alive";
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#define STACK_SIZE (CYGNUM_HAL_STACK_SIZE_TYPICAL)
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#define MASTER_STACK_SIZE (CYGNUM_HAL_STACK_SIZE_TYPICAL + 0x1000)
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static char stack_master[MASTER_STACK_SIZE];
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static cyg_thread master_thread_data;
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static cyg_handle_t master_thread_handle;
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static char stack_dummy[NDUMMIES][STACK_SIZE];
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static cyg_thread dummy_thread_data[NDUMMIES];
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static cyg_handle_t dummy_thread_handle[NDUMMIES];
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static char stack_listener[NLISTENERS][STACK_SIZE];
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static cyg_thread listener_thread_data[NLISTENERS];
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static cyg_handle_t listener_thread_handle[NLISTENERS];
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static char stack_sender[NSENDERS][STACK_SIZE];
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static cyg_thread sender_thread_data[NSENDERS];
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static cyg_handle_t sender_thread_handle[NSENDERS];
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static cyg_sem_t listen_sema[NLISTENERS];
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static cyg_sem_t send_sema;
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static cyg_sem_t recv_sema;
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static cyg_thread_entry_t master;
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static cyg_thread_entry_t listener;
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static cyg_thread_entry_t sender;
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// ------------------------------------------------------------------------
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void
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pexit(char *s)
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{
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CYG_TEST_FAIL_FINISH( s );
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}
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#ifndef max
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#define max(a,b) (((a) > (b)) ? (a) : (b))
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#endif
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// ------------------------------------------------------------------------
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void dummy( cyg_addrword_t which )
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{
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// Share the same socket... we appear to run out otherwise.
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static int s_s1 = -1;
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static struct sockaddr_in local;
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// locals...
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fd_set in_fds;
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int num;
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CYG_TEST_CHECK( 0 <= which, "which under" );
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CYG_TEST_CHECK( NDUMMIES > which, "which over" );
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diag_printf( "Dummy %d alive\n", which );
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if ( s_s1 < 0 ) {
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s_s1 = socket(AF_INET, SOCK_STREAM, 0);
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if (s_s1 < 0) {
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pexit("stream socket 1");
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}
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memset(&local, 0, sizeof(local));
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local.sin_family = AF_INET;
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local.sin_len = sizeof(local);
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local.sin_port = ntohs(SOURCE_PORT3 + which);
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local.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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if(bind(s_s1, (struct sockaddr *) &local, sizeof(local)) < 0) {
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pexit("dummy bind /source_1/ error");
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}
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listen(s_s1, SOMAXCONN);
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}
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185 |
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while (true) {
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FD_ZERO(&in_fds);
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FD_SET(s_s1, &in_fds);
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num = select( s_s1+1, &in_fds,0,0,0);
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190 |
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if (FD_ISSET(s_s1,&in_fds)) {
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CYG_TEST_FAIL( "Activity on dummy port!" );
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}
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} /* while (true) */
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}
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// ------------------------------------------------------------------------
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198 |
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void listener( cyg_addrword_t which )
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{
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200 |
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int s_s1 = -1, e_s1 = 0, s_s2 = -1, e_s2 = 0;
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201 |
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struct sockaddr_in e_s1_addr,e_s2_addr,local;
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202 |
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fd_set in_fds;
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203 |
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int len;
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204 |
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int num;
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205 |
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206 |
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// do we select on multiple sources?
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int dual = (3 == (which & 3)) || (2 == (which & 3));
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// then which is 2,3,6,7 so set up a 2nd listener
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209 |
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210 |
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CYG_TEST_CHECK( 0 <= which, "which under" );
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CYG_TEST_CHECK( NLISTENERS > which, "which over" );
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212 |
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213 |
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diag_printf( "Listener %d alive [%s]\n", which, dual ? "dual" : "single" );
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214 |
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215 |
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s_s1 = socket(AF_INET, SOCK_STREAM, 0);
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216 |
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if (s_s1 < 0) {
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217 |
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pexit("stream socket 1");
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218 |
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}
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219 |
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memset(&local, 0, sizeof(local));
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220 |
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local.sin_family = AF_INET;
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221 |
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local.sin_len = sizeof(local);
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222 |
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local.sin_port = ntohs(SOURCE_PORT1 + which);
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223 |
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local.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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224 |
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if(bind(s_s1, (struct sockaddr *) &local, sizeof(local)) < 0) {
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225 |
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pexit("bind /source_1/ error");
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226 |
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}
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227 |
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listen(s_s1, SOMAXCONN);
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228 |
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229 |
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if ( dual ) {
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230 |
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s_s2 = socket(AF_INET, SOCK_STREAM, 0);
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231 |
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if (s_s2 < 0) {
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232 |
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pexit("stream socket 2");
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233 |
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}
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234 |
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memset(&local, 0, sizeof(local));
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235 |
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local.sin_family = AF_INET;
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236 |
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local.sin_len = sizeof(local);
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237 |
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local.sin_port = ntohs(SOURCE_PORT2 + which);
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238 |
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local.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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239 |
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if(bind(s_s2, (struct sockaddr *) &local, sizeof(local)) < 0) {
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240 |
|
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pexit("bind /source_2/ error");
|
241 |
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}
|
242 |
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listen(s_s2, SOMAXCONN);
|
243 |
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}
|
244 |
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|
245 |
|
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while (true) {
|
246 |
|
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FD_ZERO(&in_fds);
|
247 |
|
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FD_SET(s_s1, &in_fds);
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248 |
|
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if ( dual )
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249 |
|
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FD_SET(s_s2, &in_fds);
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250 |
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num = select ( max(s_s1,s_s2)+1, &in_fds,0,0,0);
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251 |
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|
252 |
|
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if (FD_ISSET(s_s1,&in_fds)) {
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253 |
|
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len = sizeof(e_s1_addr);
|
254 |
|
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if ((e_s1 = accept(s_s1,(struct sockaddr *)&e_s1_addr,&len))<0) {
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255 |
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pexit("accept /source_1/");
|
256 |
|
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}
|
257 |
|
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diag_printf("TCP SERVER connection from %s: %d\n",
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258 |
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inet_ntoa(e_s1_addr.sin_addr),ntohs(e_s1_addr.sin_port));
|
259 |
|
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}
|
260 |
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|
261 |
|
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if ( dual ) {
|
262 |
|
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if (FD_ISSET(s_s2,&in_fds)) {
|
263 |
|
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len = sizeof(e_s2_addr);
|
264 |
|
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if ((e_s2 = accept(s_s2,(struct sockaddr *)&e_s2_addr,&len))<0) {
|
265 |
|
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pexit("accept /source_2/");
|
266 |
|
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}
|
267 |
|
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diag_printf("TCP SERVER connection from %s: %d\n",
|
268 |
|
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inet_ntoa(e_s2_addr.sin_addr), ntohs(e_s2_addr.sin_port));
|
269 |
|
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}
|
270 |
|
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}
|
271 |
|
|
if ((e_s1 != 0) || ( e_s2 != 0)) {
|
272 |
|
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break;
|
273 |
|
|
}
|
274 |
|
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} /* while (true) */
|
275 |
|
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|
276 |
|
|
CYG_TEST_CHECK( 0 != e_s1, "No connection made on s1!" );
|
277 |
|
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|
278 |
|
|
if ((len = read(e_s1, data_buf1[which], MAX_BUF)) < 0 ) {
|
279 |
|
|
perror("I/O error s1");
|
280 |
|
|
CYG_TEST_FAIL( "Read s1 failed" );
|
281 |
|
|
}
|
282 |
|
|
diag_printf("Listener %d: %s\n", which, data_buf1[which]);
|
283 |
|
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|
284 |
|
|
close( s_s1 );
|
285 |
|
|
if ( dual )
|
286 |
|
|
close( s_s2 );
|
287 |
|
|
if ( 0 != e_s1 )
|
288 |
|
|
close ( e_s1 );
|
289 |
|
|
if ( 0 != e_s2 )
|
290 |
|
|
close ( e_s2 );
|
291 |
|
|
|
292 |
|
|
cyg_semaphore_post( &listen_sema[which] ); // Verify that I was here
|
293 |
|
|
cyg_semaphore_post( &recv_sema ); // Count receptions
|
294 |
|
|
|
295 |
|
|
cyg_thread_exit(); // explicitly
|
296 |
|
|
}
|
297 |
|
|
|
298 |
|
|
// ------------------------------------------------------------------------
|
299 |
|
|
static void sender( cyg_addrword_t which ) // which means which set (odd/even) here...
|
300 |
|
|
{
|
301 |
|
|
int s_source;
|
302 |
|
|
struct sockaddr_in local;
|
303 |
|
|
int len;
|
304 |
|
|
|
305 |
|
|
diag_printf("client %d [%s] :started\n", which, (which & 1) ? "odd" : "even" );
|
306 |
|
|
|
307 |
|
|
for ( /* which as is */; which < NLISTENERS; which += 2 ) {
|
308 |
|
|
|
309 |
|
|
s_source = socket(AF_INET, SOCK_STREAM, 0);
|
310 |
|
|
if (s_source < 0) {
|
311 |
|
|
pexit("stream socket");
|
312 |
|
|
}
|
313 |
|
|
memset(&local, 0, sizeof(local));
|
314 |
|
|
local.sin_family = AF_INET;
|
315 |
|
|
local.sin_len = sizeof(local);
|
316 |
|
|
local.sin_port = htons( SOURCE_PORT1 + which );
|
317 |
|
|
local.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
|
318 |
|
|
|
319 |
|
|
if (connect(s_source, (struct sockaddr *)&local, sizeof(local)) < 0) {
|
320 |
|
|
pexit("Can't connect to target");
|
321 |
|
|
}
|
322 |
|
|
|
323 |
|
|
if ((len = write(s_source,data_buf_write1,sizeof(data_buf_write1) )) < 0) {
|
324 |
|
|
CYG_TEST_FAIL_FINISH("Error writing buffer");
|
325 |
|
|
}
|
326 |
|
|
cyg_semaphore_wait( &listen_sema[which] ); // wait for the appropriate semaphore "reply"
|
327 |
|
|
cyg_semaphore_post( &send_sema ); // count up successful sends
|
328 |
|
|
|
329 |
|
|
close ( s_source );
|
330 |
|
|
}
|
331 |
|
|
cyg_thread_exit(); // explicitly
|
332 |
|
|
}
|
333 |
|
|
|
334 |
|
|
|
335 |
|
|
static void
|
336 |
|
|
master(cyg_addrword_t param)
|
337 |
|
|
{
|
338 |
|
|
int i;
|
339 |
|
|
cyg_handle_t self = cyg_thread_self();
|
340 |
|
|
|
341 |
|
|
cyg_semaphore_init( &send_sema, 0 );
|
342 |
|
|
cyg_semaphore_init( &recv_sema, 0 );
|
343 |
|
|
|
344 |
|
|
for ( i = 0 ; i < NLISTENERS; i++ )
|
345 |
|
|
cyg_semaphore_init( &listen_sema[i], 0 );
|
346 |
|
|
|
347 |
|
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init_all_network_interfaces();
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348 |
|
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CYG_TEST_INFO("Start multiple loopback select test");
|
349 |
|
|
#if NLOOP > 0
|
350 |
|
|
// We are currently running at high prio, so we can just go and make
|
351 |
|
|
// loads of threads:
|
352 |
|
|
|
353 |
|
|
// Some at higher prio
|
354 |
|
|
for ( i = 0; i < NLISTENERS/2; i++ )
|
355 |
|
|
cyg_thread_create(PRIO_LISTENER_HI, // Priority
|
356 |
|
|
listener, // entry
|
357 |
|
|
i, // entry parameter
|
358 |
|
|
"listener", // Name
|
359 |
|
|
&stack_listener[i][0], // Stack
|
360 |
|
|
STACK_SIZE, // Size
|
361 |
|
|
&listener_thread_handle[i], // Handle
|
362 |
|
|
&listener_thread_data[i] // Thread data structure
|
363 |
|
|
);
|
364 |
|
|
// the rest at lower prio
|
365 |
|
|
for ( ; i < NLISTENERS ; i++ )
|
366 |
|
|
cyg_thread_create(PRIO_LISTENER_LO, // Priority
|
367 |
|
|
listener, // entry
|
368 |
|
|
i, // entry parameter
|
369 |
|
|
"listener", // Name
|
370 |
|
|
&stack_listener[i][0], // Stack
|
371 |
|
|
STACK_SIZE, // Size
|
372 |
|
|
&listener_thread_handle[i], // Handle
|
373 |
|
|
&listener_thread_data[i] // Thread data structure
|
374 |
|
|
);
|
375 |
|
|
|
376 |
|
|
// make the dummy event-grabber threads
|
377 |
|
|
for ( i = 0; i < NDUMMIES; i++ )
|
378 |
|
|
cyg_thread_create(PRIO_DUMMY, // Priority
|
379 |
|
|
dummy, // entry
|
380 |
|
|
i, // entry parameter
|
381 |
|
|
"dummy", // Name
|
382 |
|
|
&stack_dummy[i][0], // Stack
|
383 |
|
|
STACK_SIZE, // Size
|
384 |
|
|
&dummy_thread_handle[i], // Handle
|
385 |
|
|
&dummy_thread_data[i] // Thread data structure
|
386 |
|
|
);
|
387 |
|
|
|
388 |
|
|
// Start those threads
|
389 |
|
|
for ( i = 0; i < NLISTENERS; i++ )
|
390 |
|
|
cyg_thread_resume(listener_thread_handle[i]);
|
391 |
|
|
for ( i = 0; i < NDUMMIES; i++ )
|
392 |
|
|
cyg_thread_resume( dummy_thread_handle[i]);
|
393 |
|
|
|
394 |
|
|
// and let them start up and start listening...
|
395 |
|
|
cyg_thread_set_priority( self, PRIO_MASTERLOW );
|
396 |
|
|
CYG_TEST_INFO("All listeners should be go now");
|
397 |
|
|
cyg_thread_set_priority( self, PRIO_MASTERHIGH );
|
398 |
|
|
|
399 |
|
|
for ( i = 0; i < NSENDERS; i++ ) {
|
400 |
|
|
cyg_thread_create( (0 == i)
|
401 |
|
|
?PRIO_SENDER_MID
|
402 |
|
|
: PRIO_SENDER_LOW, // Priority
|
403 |
|
|
sender, // entry
|
404 |
|
|
i, // entry parameter
|
405 |
|
|
"sender", // Name
|
406 |
|
|
&stack_sender[i][0], // Stack
|
407 |
|
|
STACK_SIZE, // Size
|
408 |
|
|
&sender_thread_handle[i], // Handle
|
409 |
|
|
&sender_thread_data[i] // Thread data structure
|
410 |
|
|
);
|
411 |
|
|
cyg_thread_resume(sender_thread_handle[i]);
|
412 |
|
|
}
|
413 |
|
|
|
414 |
|
|
// Now we are still higher priority; so go low and let everyone else
|
415 |
|
|
// have their head. When we next run after this, it should all be
|
416 |
|
|
// over.
|
417 |
|
|
cyg_thread_set_priority( self, PRIO_MASTERLOW );
|
418 |
|
|
|
419 |
|
|
cyg_semaphore_peek( &recv_sema, &i );
|
420 |
|
|
CYG_TEST_CHECK( NLISTENERS == i, "Not enough recvs occurred!" );
|
421 |
|
|
|
422 |
|
|
cyg_semaphore_peek( &send_sema, &i );
|
423 |
|
|
CYG_TEST_CHECK( NLISTENERS == i, "Not enough sends occurred!" );
|
424 |
|
|
|
425 |
|
|
CYG_TEST_PASS_FINISH("Master returned OK");
|
426 |
|
|
#endif
|
427 |
|
|
CYG_TEST_NA( "No loopback devs" );
|
428 |
|
|
}
|
429 |
|
|
|
430 |
|
|
void
|
431 |
|
|
cyg_user_start(void)
|
432 |
|
|
{
|
433 |
|
|
CYG_TEST_INIT();
|
434 |
|
|
|
435 |
|
|
cyg_thread_create(PRIO_MASTERHIGH, // Priority
|
436 |
|
|
master, // entry
|
437 |
|
|
0, // entry parameter
|
438 |
|
|
"master", // Name
|
439 |
|
|
&stack_master[0], // Stack
|
440 |
|
|
MASTER_STACK_SIZE, // Size
|
441 |
|
|
&master_thread_handle, // Handle
|
442 |
|
|
&master_thread_data // Thread data structure
|
443 |
|
|
);
|
444 |
|
|
cyg_thread_resume(master_thread_handle); // Start it
|
445 |
|
|
}
|
446 |
|
|
|
447 |
|
|
// EOF multi_lo_select.c
|