FreeCalypso > hg > freecalypso-tools
view rvinterf/asyncshell/sendsp.c @ 619:f82551c77e58
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 | d43d82cbfb85 |
children |
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/* * Functions for sending GPF system primitives to the target */ #include <sys/types.h> #include <stdio.h> #include <ctype.h> #include <string.h> #include <strings.h> #include <stdlib.h> #include "pktmux.h" #include "limits.h" #include "exitcodes.h" send_gpf_sysprim(stackdest, primstr) char *stackdest, *primstr; { unsigned intlen; u_char sendpkt[MAX_PKT_TO_TARGET+1]; unsigned pktlen; if (strlen(stackdest) > 4) { printf( "error: stack destination arg may not exceed 4 characters\n"); return(ERROR_USAGE); } intlen = 12 + strlen(primstr); pktlen = intlen + 4; if (pktlen > MAX_PKT_TO_TARGET) { printf("error: max pkt to target limit exceeded\n"); return(ERROR_USAGE); } /* fill out the packet */ sendpkt[0] = RVT_L23_HEADER; sendpkt[1] = 0xB7; /* system prim */ sendpkt[2] = intlen; sendpkt[3] = intlen >> 8; /* send zeros for the timestamp */ sendpkt[4] = 0; sendpkt[5] = 0; sendpkt[6] = 0; sendpkt[7] = 0; /* as far as TI's sw is concerned, we are PCO */ sendpkt[8] = 'P'; sendpkt[9] = 'C'; sendpkt[10] = 'O'; sendpkt[11] = ' '; sprintf(sendpkt + 12, "%-4s%s", stackdest, primstr); /* send it! */ send_pkt_to_target(sendpkt, pktlen); return(0); } void cmd_sp_interactive(args) char *args; { char *cp, *np; for (cp = args; isspace(*cp); cp++) ; if (!*cp) { err: printf("error: two arguments required\n"); return; } for (np = cp; *cp && !isspace(*cp); cp++) ; if (!*cp) goto err; *cp++ = '\0'; while (isspace(*cp)) cp++; if (!*cp) goto err; gpf_rx_control(1); send_gpf_sysprim(np, cp); } cmd_sp_oneshot(argc, argv) char **argv; { return send_gpf_sysprim(argv[1], argv[2]); }