FreeCalypso > hg > freecalypso-tools
annotate loadtools/initscript.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> |
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date | Thu, 27 Feb 2020 01:09:48 +0000 |
parents | e7502631a0f9 |
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rev | line source |
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0
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1 /* |
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2 * This module has been copied from ltscript.c, ltdispatch.c and ltpassthru.c: |
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3 * here we implement the init-script functionality for fc-xram. |
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4 */ |
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5 |
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6 #include <sys/param.h> |
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7 #include <stdio.h> |
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8 #include <string.h> |
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9 #include <strings.h> |
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10 #include <stdlib.h> |
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11 |
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12 extern char default_helpers_dir[]; |
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13 |
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14 extern int cmd_baud(); |
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15 |
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16 static |
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17 loadagent_cmd(argc, argv) |
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18 char **argv; |
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19 { |
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20 if (tpinterf_make_cmd(argv) < 0) { |
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21 fprintf(stderr, "error: unable to form target command\n"); |
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22 return(-1); |
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23 } |
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24 if (tpinterf_send_cmd() < 0) |
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25 return(-1); |
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26 return tpinterf_pass_output(1); |
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27 } |
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28 |
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29 static struct cmdtab { |
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30 char *cmd; |
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31 int minargs; |
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32 int maxargs; |
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33 int (*func)(); |
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34 } cmdtab[] = { |
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35 {"baud", 1, 1, cmd_baud}, |
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36 {"w8", 2, 2, loadagent_cmd}, |
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37 {"w16", 2, 2, loadagent_cmd}, |
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38 {"w32", 2, 2, loadagent_cmd}, |
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39 {0, 0, 0, 0} |
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40 }; |
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41 |
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42 static |
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43 dispatch_cmd(cmd) |
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44 char *cmd; |
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45 { |
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46 char *argv[10]; |
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47 char *cp, **ap; |
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48 struct cmdtab *tp; |
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49 |
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50 for (cp = cmd; isspace(*cp); cp++) |
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51 ; |
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52 if (!*cp || *cp == '#') |
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53 return(0); |
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54 printf("init-script command: %s\n", cp); |
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55 argv[0] = cp; |
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56 while (*cp && !isspace(*cp)) |
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57 cp++; |
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58 if (*cp) |
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59 *cp++ = '\0'; |
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60 for (tp = cmdtab; tp->cmd; tp++) |
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61 if (!strcmp(tp->cmd, argv[0])) |
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62 break; |
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63 if (!tp->func) { |
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64 fprintf(stderr, "error: no such command\n"); |
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65 return(-1); |
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66 } |
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67 for (ap = argv + 1; ; ) { |
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68 while (isspace(*cp)) |
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69 cp++; |
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70 if (!*cp || *cp == '#') |
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71 break; |
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72 if (ap - argv - 1 >= tp->maxargs) { |
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73 fprintf(stderr, "error: too many arguments\n"); |
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74 return(-1); |
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75 } |
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76 *ap++ = cp; |
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77 while (*cp && !isspace(*cp)) |
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78 cp++; |
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79 if (*cp) |
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80 *cp++ = '\0'; |
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81 } |
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82 if (ap - argv - 1 < tp->minargs) { |
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83 fprintf(stderr, "error: too few arguments\n"); |
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84 return(-1); |
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85 } |
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86 *ap = 0; |
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87 return tp->func(ap - argv, argv); |
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88 } |
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89 |
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90 exec_init_script(script_name) |
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91 char *script_name; |
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92 { |
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93 char pathbuf[MAXPATHLEN], *openfname; |
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94 FILE *f; |
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95 char linebuf[512], *cp; |
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96 int lineno, retval = 0; |
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97 |
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98 if (index(script_name, '/')) |
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99 openfname = script_name; |
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100 else { |
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101 sprintf(pathbuf, "%s/%s", default_helpers_dir, script_name); |
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102 openfname = pathbuf; |
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103 } |
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104 f = fopen(openfname, "r"); |
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105 if (!f) { |
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106 perror(openfname); |
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107 return(-1); |
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108 } |
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109 for (lineno = 1; fgets(linebuf, sizeof linebuf, f); lineno++) { |
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110 cp = index(linebuf, '\n'); |
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parents:
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111 if (!cp) { |
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112 fprintf(stderr, "%s line %d: missing newline\n", |
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113 openfname, lineno); |
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114 fclose(f); |
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115 return(-1); |
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116 } |
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117 *cp = '\0'; |
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118 retval = dispatch_cmd(linebuf); |
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119 if (retval) |
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120 break; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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121 } |
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parents:
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122 fclose(f); |
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123 return(retval); |
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124 } |