260 lines
6.3 KiB
C
260 lines
6.3 KiB
C
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#include <mio.h>
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#include <mio-utl.h>
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#include <mio-sck.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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struct mmgr_stat_t
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{
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mio_oow_t total_count;
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};
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typedef struct mmgr_stat_t mmgr_stat_t;
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static mmgr_stat_t mmgr_stat;
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static void* mmgr_alloc (mio_mmgr_t* mmgr, mio_oow_t size)
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{
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void* x;
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if (((mmgr_stat_t*)mmgr->ctx)->total_count > 3000)
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{
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printf ("CRITICAL ERROR ---> too many heap chunks...\n");
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return MIO_NULL;
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}
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x = malloc (size);
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if (x) ((mmgr_stat_t*)mmgr->ctx)->total_count++;
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return x;
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}
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static void* mmgr_realloc (mio_mmgr_t* mmgr, void* ptr, mio_oow_t size)
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{
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return realloc (ptr, size);
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}
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static void mmgr_free (mio_mmgr_t* mmgr, void* ptr)
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{
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((mmgr_stat_t*)mmgr->ctx)->total_count--;
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return free (ptr);
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}
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static mio_mmgr_t mmgr =
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{
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mmgr_alloc,
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mmgr_realloc,
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mmgr_free,
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&mmgr_stat
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};
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struct tcp_xtn_t
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{
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int tally;
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};
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typedef struct tcp_xtn_t tcp_xtn_t;
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static void tcp_sck_on_disconnect (mio_dev_sck_t* tcp)
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{
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switch (MIO_DEV_SCK_GET_PROGRESS(tcp))
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{
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case MIO_DEV_SCK_CONNECTING:
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MIO_INFO1 (tcp->mio, "OUTGOING SESSION DISCONNECTED - FAILED TO CONNECT (%d) TO REMOTE SERVER\n", (int)tcp->hnd);
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break;
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case MIO_DEV_SCK_CONNECTING_SSL:
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MIO_INFO1 (tcp->mio, "OUTGOING SESSION DISCONNECTED - FAILED TO SSL-CONNECT (%d) TO REMOTE SERVER\n", (int)tcp->hnd);
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break;
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case MIO_DEV_SCK_LISTENING:
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MIO_INFO1 (tcp->mio, "SHUTTING DOWN THE SERVER SOCKET(%d)...\n", (int)tcp->hnd);
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break;
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case MIO_DEV_SCK_CONNECTED:
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MIO_INFO1 (tcp->mio, "OUTGOING CLIENT CONNECTION GOT TORN DOWN(%d).......\n", (int)tcp->hnd);
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break;
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case MIO_DEV_SCK_ACCEPTING_SSL:
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MIO_INFO1 (tcp->mio, "INCOMING SSL-ACCEPT GOT DISCONNECTED(%d) ....\n", (int)tcp->hnd);
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break;
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case MIO_DEV_SCK_ACCEPTED:
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MIO_INFO1 (tcp->mio, "INCOMING CLIENT BEING SERVED GOT DISCONNECTED(%d).......\n", (int)tcp->hnd);
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break;
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default:
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MIO_INFO2 (tcp->mio, "SOCKET DEVICE DISCONNECTED (%d - %x)\n", (int)tcp->hnd, (unsigned int)tcp->state);
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break;
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}
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}
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static void tcp_sck_on_connect (mio_dev_sck_t* tcp)
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{
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mio_bch_t buf1[128], buf2[128];
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mio_skadtobcstr (tcp->mio, &tcp->localaddr, buf1, MIO_COUNTOF(buf1), MIO_SKAD_TO_BCSTR_ADDR | MIO_SKAD_TO_BCSTR_PORT);
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mio_skadtobcstr (tcp->mio, &tcp->remoteaddr, buf2, MIO_COUNTOF(buf2), MIO_SKAD_TO_BCSTR_ADDR | MIO_SKAD_TO_BCSTR_PORT);
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if (tcp->state & MIO_DEV_SCK_CONNECTED)
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{
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MIO_INFO3 (tcp->mio, "DEVICE connected to a remote server... LOCAL %hs REMOTE %hs SCK: %d\n", buf1, buf2, tcp->hnd);
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}
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else if (tcp->state & MIO_DEV_SCK_ACCEPTED)
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{
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MIO_INFO3 (tcp->mio, "DEVICE accepted client device... .LOCAL %hs REMOTE %hs SCK: %d\n", buf1, buf2, tcp->hnd);
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}
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if (mio_dev_sck_write(tcp, "hello", 5, MIO_NULL, MIO_NULL) <= -1)
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{
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mio_dev_sck_halt (tcp);
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}
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}
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static int tcp_sck_on_write (mio_dev_sck_t* tcp, mio_iolen_t wrlen, void* wrctx, const mio_skad_t* dstaddr)
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{
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tcp_xtn_t* ts;
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mio_ntime_t tmout;
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if (wrlen <= -1)
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{
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MIO_INFO1 (tcp->mio, "TCP_SCK_ON_WRITE(%d) >>> SEDING TIMED OUT...........\n", (int)tcp->hnd);
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mio_dev_sck_halt (tcp);
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}
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else
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{
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ts = (tcp_xtn_t*)(tcp + 1);
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if (wrlen == 0)
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{
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MIO_INFO1 (tcp->mio, "TCP_SCK_ON_WRITE(%d) >>> CLOSED WRITING END\n", (int)tcp->hnd);
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}
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else
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{
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MIO_INFO3 (tcp->mio, "TCP_SCK_ON_WRITE(%d) >>> SENT MESSAGE %d of length %ld\n", (int)tcp->hnd, ts->tally, (long int)wrlen);
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}
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ts->tally++;
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// if (ts->tally >= 2) mio_dev_sck_halt (tcp);
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MIO_INIT_NTIME (&tmout, 5, 0);
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//mio_dev_sck_read (tcp, 1);
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MIO_INFO3 (tcp->mio, "TCP_SCK_ON_WRITE(%d) >>> REQUESTING to READ with timeout of %ld.%08ld\n", (int)tcp->hnd, (long int)tmout.sec, (long int)tmout.nsec);
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mio_dev_sck_timedread (tcp, 1, &tmout);
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}
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return 0;
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}
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static int tcp_sck_on_read (mio_dev_sck_t* tcp, const void* buf, mio_iolen_t len, const mio_skad_t* srcaddr)
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{
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int n;
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if (len <= -1)
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{
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MIO_INFO1 (tcp->mio, "TCP_SCK_ON_READ(%d) STREAM DEVICE: TIMED OUT...\n", (int)tcp->hnd);
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mio_dev_sck_halt (tcp);
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return 0;
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}
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else if (len <= 0)
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{
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MIO_INFO1 (tcp->mio, "TCP_SCK_ON_READ(%d) STREAM DEVICE: EOF RECEIVED...\n", (int)tcp->hnd);
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/* no outstanding request. but EOF */
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mio_dev_sck_halt (tcp);
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return 0;
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}
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MIO_INFO2 (tcp->mio, "TCP_SCK_ON_READ(%d) - received %d bytes\n", (int)tcp->hnd, (int)len);
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{
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mio_ntime_t tmout;
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static char a ='A';
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static char xxx[1000000];
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memset (xxx, a++ , MIO_SIZEOF(xxx));
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MIO_INFO2 (tcp->mio, "TCP_SCK_ON_READ(%d) >>> REQUESTING to write data of %d bytes\n", (int)tcp->hnd, MIO_SIZEOF(xxx));
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//return mio_dev_sck_write (tcp, "HELLO", 5, MIO_NULL);
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MIO_INIT_NTIME (&tmout, 5, 0);
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n = mio_dev_sck_timedwrite(tcp, xxx, MIO_SIZEOF(xxx), &tmout, MIO_NULL, MIO_NULL);
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if (n <= -1) return -1;
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}
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MIO_INFO1 (tcp->mio, "TCP_SCK_ON_READ(%d) - REQUESTING TO STOP READ\n", (int)tcp->hnd);
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mio_dev_sck_read (tcp, 0);
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#if 0
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MIO_INFO1 (tcp->mio, "TCP_SCK_ON_READ(%d) - REQUESTING TO CLOSE WRITING END\n", (int)tcp->hnd);
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/* post the write finisher - close the writing end */
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n = mio_dev_sck_write(tcp, MIO_NULL, 0, MIO_NULL, MIO_NULL);
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if (n <= -1) return -1;
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#endif
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return 0;
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/* return 1; let the main loop to read more greedily without consulting the multiplexer */
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}
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int main (int argc, char* argv[])
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{
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mio_t* mio = MIO_NULL;
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mio_dev_sck_t* tcpsvr;
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mio_dev_sck_make_t tcp_make;
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mio_dev_sck_connect_t tcp_conn;
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tcp_xtn_t* ts;
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if (argc != 2)
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{
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fprintf (stderr, "Usage: %s ipaddr:port\n", argv[0]);
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return -1;
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}
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mio = mio_open(&mmgr, 0, MIO_NULL, 512, MIO_NULL);
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if (!mio)
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{
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printf ("Cannot open mio\n");
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goto oops;
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}
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memset (&tcp_conn, 0, MIO_SIZEOF(tcp_conn));
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mio_bcstrtoskad(mio, argv[1], &tcp_conn.remoteaddr);
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MIO_INIT_NTIME (&tcp_conn.connect_tmout, 5, 0);
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tcp_conn.options = 0;
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memset (&tcp_make, 0, MIO_SIZEOF(tcp_make));
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tcp_make.type = mio_skad_family(&tcp_conn.remoteaddr) == MIO_AF_INET? MIO_DEV_SCK_TCP4: MIO_DEV_SCK_TCP6;
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tcp_make.on_write = tcp_sck_on_write;
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tcp_make.on_read = tcp_sck_on_read;
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tcp_make.on_connect = tcp_sck_on_connect;
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tcp_make.on_disconnect = tcp_sck_on_disconnect;
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tcpsvr = mio_dev_sck_make(mio, MIO_SIZEOF(tcp_xtn_t), &tcp_make);
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if (!tcpsvr)
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{
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printf ("Cannot make a tcp server\n");
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goto oops;
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}
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ts = (tcp_xtn_t*)(tcpsvr + 1);
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ts->tally = 0;
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if (mio_dev_sck_connect(tcpsvr, &tcp_conn) <= -1)
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{
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}
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mio_loop (mio);
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oops:
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if (mio) mio_close (mio);
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return 0;
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return 0;
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}
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