FreeCalypso > hg > freecalypso-tools

annotate rvinterf/libinterf/connect.c @ 619:f82551c77e58

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libserial-newlnx: ASYNC_LOW_LATENCY patch reverted Reports from Das Signal indicate that loadtools performance on Debian is about the same as on Slackware, and that including or omitting the ASYNC_LOW_LATENCY patch from Serg makes no difference. Because the patch in question does not appear to be necessary, it is being reverted until and unless someone other than Serg reports an actual real-world system on which loadtools operation times are slowed compared to the Mother's Slackware reference and on which Slackware-like performance can be restored by setting the ASYNC_LOW_LATENCY flag.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 27 Feb 2020 01:09:48 +0000
parents 67d683a87b1d
children
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1 /*
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2 * Connecting to an already running rvinterf process
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3 */
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4
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5 #include <sys/types.h>
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6 #include <sys/socket.h>
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7 #include <sys/un.h>
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8 #include <stdio.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <stdlib.h>
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12 #include <unistd.h>
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13 #include "pktmux.h"
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14 #include "localsock.h"
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15 #include "exitcodes.h"
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17 char *socket_pathname = "/tmp/rvinterf_socket";
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18 int sock;
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20 connect_local_socket()
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21 {
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22 /* local socket binding voodoo copied from osmocon */
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23 struct sockaddr_un local;
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24 unsigned int namelen;
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25 int rc;
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26
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27 sock = socket(AF_UNIX, SOCK_STREAM, 0);
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28 if (sock < 0) {
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29 perror("socket(AF_UNIX, SOCK_STREAM, 0)");
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30 exit(ERROR_UNIX);
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31 }
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32
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33 local.sun_family = AF_UNIX;
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34 strncpy(local.sun_path, socket_pathname, sizeof(local.sun_path));
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35 local.sun_path[sizeof(local.sun_path) - 1] = '\0';
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37 /* we use the same magic that X11 uses in Xtranssock.c for
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38 * calculating the proper length of the sockaddr */
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39 #if defined(BSD44SOCKETS) || defined(__UNIXWARE__)
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40 local.sun_len = strlen(local.sun_path);
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41 #endif
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42 #if defined(BSD44SOCKETS) || defined(SUN_LEN)
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43 namelen = SUN_LEN(&local);
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44 #else
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45 namelen = strlen(local.sun_path) +
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46 offsetof(struct sockaddr_un, sun_path) + 1;
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47 #endif
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48
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49 rc = connect(sock, (struct sockaddr *) &local, namelen);
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50 if (rc != 0) {
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51 perror(socket_pathname);
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52 exit(ERROR_RVINTERF);
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53 }
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54
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55 return(0);
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56 }